1. DE MARCO, FERNANDO. J., MARTINS, NELSON, LIBONATI, FERNANDO, CASTELLANOS, JOSE M., PSS Phase Shaping and Coordinated Gain Tuning in a Large Longitudinal Power System, Proceedings of PowerTech Conference, 2015 IEEE Eindhoven, July 2015, pp. 1-6.
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2. VARRICCHIO, S.L., FREITAS, F.D., MARTINS, N., Hybrid modal-balanced truncation method based on power system transfer function energy concepts, IET Gener. Transm. Distrib., 2015, Vol. 9, Iss. 11, pp. 1186–1194.
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3. VARRICCHIO, S.L., FREITAS, F.D., MARTINS, N., VELIZ, F.C., Computation of Dominant Poles and Residue Matrices for Multivariable Transfer Functions of Infinite Power System Models, IEEE Transactions on Power Systems, USA, Vol. 30, Issue:3, p. 1131 - 1142, May 2015.
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4. A.C. Antoulas, R. Ionutiu, N. Martins, E.J.W. ter Maten, K. Mohaghegh, R. Pulch, J. Rommes, M. Saadvandi, M. Striebel Model Order Reduction Methods, Concepts and Properties. CASA-Report 2015-07, TU Eindhoven, 2015. Ch. 3 In: Coupled Multiscale Simulation and Optimization in Nanoelectronics. Eds. M. Günther: Series Mathematics in Industry Vol. 21, Springer, (2015). ISBN 978-3-662-46671-1.
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5. MARTINS, N., BOSSA, T.H. S. A Modal Stabilizer for the Independent Damping Control of Aggregate Generator and Intraplant Modes in Multigenerator Power Plants. IEEE Transactions on Power Systems, USA, Vol. 29, Issue: 6, p. 2646 - 2661, November 2014.
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6. VARRICCHIO, S.L., FREITAS, F.D., MARTINS, N., Spectral Energy Indices for Model Order Reduction. Proceedings of IEEE PES General Meeting, Vancouver, Canada, July 2013.
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7. VARRICCHIO, S.L., FREITAS, F.D., MARTINS, N., Aspectos Visuais e Numéricos dos Desvios em Modelos de Ordem Reduzida Obtidos por Meio de um Método de Cálculo de Modos Dominantes Multivariável., Proceedings of XV ERIAC Conference, Iguassu Falls, Brazil, May 2013.

8. F.J. de Marco, N. Martins, J. C. Ferraz, An Automatic Method for Power System Stabilizers Phase Compensation Design. IEEE Transactions on Power Systems, USA, Vol. 28, Issue: 2, p. 997-1007, May 2013.
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9. FERREIRA, O.S., PELLANDA, P.C., MARTINS, N., Ensaio Pouco Invasivo para Avaliação de Estabilizadores de Usinas Multigeradores. Prevista Militar de Ciência e Tecnologia – RMCT, Rio de Janeiro, Brazil, March 2013.

10. DE MARCO, F., APOLINÁRIO Jr, J.A., PELLANDA, P.C., MARTINS, N., Efficient Online Estimation of Electromechanical Modes in Large Power Systems. Proceedings of IV IEEE Latin American Symposium on Circuits and Systems - IEEE LASCAS 2013, Cusco, Peru, March 2013.

11. BOSSA, T.S., PELLANDA, P.C., MARTINS, N., Identificação da Dinâmica Dominante de Malha Aberta em Sistemas de Malha Fechada: Aplicação em Estabilizadores de Sistemas de Potência. Revista Militar de Ciência e Tecnologia, – RMCT, Rio de Janeiro, Brazil, 2012.

12. FERREIRA, O.S., MARTINS, N.,PELLANDA, P.C., PINHEIRO, G.M., Controle Dissociado de Velocidade Translacional e Amortecimento de Modos Oscilatórios em Trens Longos de Carga. Proceedings of XIX Congresso Brasileiro de Automatica – CBA 2012, Campina Grande, Brazil, September 2012.

13. E. M. Viana, E. J. de Oliveira, N. Martins, J. L. R.Pereira, L. W. de Oliveira. An Optimal Power Flow Function to Aid Restoration Studies of Long Transmission Segments. IEEE Transactions on Power Systems, USA, Vol. 28, No. 1, p. 121-129, February 2013.
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14. D.D. DUMISANI, B.C. PAL, R.A. JABR, N. MARTINS Robust and low-order design of flexible ac transmission systems and power system stabilisers for oscillation damping, IET Generation, Transmission and Distribution, Vol. 6, Iss. 5, May 2012, pp. 445 - 452.
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15. DE MARCO, F., MARTINS, N., ZENI Jr, N., SILVA, A.S., Comparando os desempenhos de dois estabilizadores modernos: Integral de Potência Acelerante (PSS2B) versus Multi-banda (PSS4B). Proceedings of XII SEPOPE Conference, Rio de Janeiro, Brazil, May 2012.

16. FERREIRA, S.O., MARTINS, N., PELLANDA, P.C., Verificação do Ajuste de Sinais Estabilizadores em Usinas de Energia Elétrica por Procedimento Automático de Ensaio de Campo pouco Invasivo. Proceedings of XII SEPOPE Conference, Rio de Janeiro, Brazil, May 2012.

17. VARRICCHIO, S.L., VÉLIZ, F.C., FREITAS, F.D., MARTINS, N., Síntese de Equivalentes Dinâmicos de Redes Elétricas Multi-Conectadas. Proceedings of XII SEPOPE Conference, Rio de Janeiro, Brazil, May 2012.

18. JABR, R. A ., MARTINS, N., PAL, B. C. , KARAKI, S. A Contingency Constrained VAr Planning Using Penalty Successive Conic Programming. IEEE Transactions on Power Systems, USA, Vol. 27, Issue 1, February 2012, pp. 545-553.
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19. F. D. FREITAS, N. MARTINS, S. L. VARRICCHIO, J. ROMMES, F. C. VELIZ, Reduced-Order Transfer Matrices from RLC Network Descriptor Models of Electric Power Grids. IEEE Transactions on Power Systems, USA, Vol. 26, Issue 4, November 2011, pp. 1905-1916.
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20. BOSSA, T.H., PELLANDA, P.C., SILVA, R.J.G.C., MARTINS, N., Novo Teste de Campo para Sinais Adicionais Estabilizadores e sua Aplicação na Usina de Itaipu. Proceedings of XXI SNPTEE, Florianópolis, Brazil, October 2011.

21. FREITAS, F.D., ROMMES, J., MARTINS, N., Low-rank Gramian Applications in Dynamics and Control. Proceedings of International Conference on Comunications, Computing and Control Applications - CCCA’11, Hammamet, Tunisia, March 2011.

22. BOSSA, T. S., MARTINS, N., da SILVA, R. J. G. C. , PELLANDA, P. C., A Field Test to Determine PSS Effectiveness at Multigenerator Power Plants. IEEE Transactions on Power Systems, USA, Vol. 26, Issue 3, August 2011, pp. 1522-1533.
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23. PINTO, F.T., PELLANDA, P.C., MARTINS, N., Método de Cálculo do Lugar das Raízes de Sistemas com Atraso: Aplicação ao Sistema de Controle de Propulsão de Navios. Proceedings of XVIII Congresso Brasileiro de Automática, Bonito, Brazil, September 2010.

24. ADIBI, M.M., MARTINS, N., WATANABE, E.H., The Impact of FACTS and Other New Technologies on Power System Restoration Dynamics. Proceedings of IEEE PES General Meeting, Minneapolis, USA, July 2010.

25. R. A. JABR, B. C. PAL, N. MARTINS and J. C. R. FERRAZ, Robust and Coordinated Tuning of Power System Stabilizer Gains using Sequential Linear Programing, IET Generation, Transmission and Distribution, Vol. 4, Iss. 8, pp. 893 - 904, 2010.
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26. JABR, R. A., PAL, B. C., MARTINS, N., A Sequential Conic Programming Approach for the Coordinated and Robust Design of Power System Stabilizers. IEEE Transactions on Power Systems, USA, Vol. 25 , Issue 3, August 2010, pp. 1627-1637.
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27. ROMMES, J., MARTINS, N., FREITAS, F. , Computing Rightmost Eigenvalues for Small-Signal Stability Assessment of Large-Scale Power Systems. IEEE Transactions on Power Systems, USA, Vol. 25, Issue 2, May 2010, pp. 929-938
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28. I.C. Decker, R.J.G. da Silva, M.N. Agostini, N. Martins, System wide model validation of the Brazilian Interconnected Power System. Power and Energy Society General Meeting, p. 1-8, Minneapolis, USA, July 2010.
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29. FREITAS, F.D., FERNANDES, L.F.J., MARTINS, N., MONTEIRO, P.A.G., On-line Modal Parameters Estimation based on Low-Energy Probing and PMU Measurements at the Brazilian North-South Interconnection. Proceedings of XI SEPOPE Conference, Belém, Brazil, March 2009.

30. GOMES JR, Sérgio; MARTINS, Nelson; PORTELA, Carlos. Sequential Computation of Transfer Function Dominant Poles of s-Domain System Models. IEEE Transactions on Power Systems, USA, Vol. 24, No. 2, p. 776-784, May 2009
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31. ROMMES, J., MARTINS, N.,  Exploiting structure in large-scale electrical circuit and power system problems, Linear Algebra and its Applications, Vol. 431, Issue 3-4, 2009, pp. 318-333 
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32. PASSOS FILHO, J.A.P., MARTINS, N., FALCAO, D. M. Identifying Power Flow Control Infeasibilities in Large-Scale Power System Models. IEEE Transactions on Power Systems , USA, Vol. 24, No. 1, p. 86-95, February 2009.
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33. SIMOES, A. M., SAVELLI, D.C., PELLANDA, P.C., MARTINS, N., APKARIAN, P. Robust Design of a TCSC Oscillation Damping Controller in a Weak 500-kV Interconnection Considering Multiple Power Flow Scenarios and External Disturbances. IEEE Transactions on Power Systems , USA, Vol. 24, No. 1, p. 226-236, February 2009.
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34. ROMMES, J., MARTINS, N., Computing Transfer Function Dominant Poles of Large Second-order Systems. Proceeding of ICIAM 2007 (published 2008), GAMM.
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35. VIANA, E. M, OLIVEIRA, E. J., MARTINS N., OLIVEIRA, L. W., PEREIRA, J. L. R., Otimização da Fase Fluente de Recomposição de Sistemas Elétricos. Congresso Brasileiro de Automática, Juiz de Fora, MG, Brazil, September 2008.
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36. FERNANDES, L. F., FREITAS, F. D., MARTINS, N., Técnica para Determinação de Modos Dominantes em Sistemas Elétricos de Potência a partir de Sinais de Saída Contemplando a Presença de Ruído. Congresso Brasileiro de Automática, Juiz de Fora, MG, Brazil, September 2008.
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37. ALVES, F. R. M., A. P. GUARINI, HENRIQUES, R. M., PASSOS FILHO, J. A., MARTINS, N., FALCÃO, D. M., GOMES, P., Changing Paradigms for Increased Productivity in Power System Restoration Studies: The Brazilian ISO Experience. Paper C2-109, CIGRE Session 42, Paris, France, 24-29 August 2008.
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38. FREITAS, F.D., ROMMES, J., MARTINS, N. Gramian-Based Reduction Method Applied to Large Sparse Power System Descriptor Models. IEEE Transactions on Power Systems , USA, Vol. 23, No. 3, p. 1258-1270, August 2008.
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39. MARTINS, N., DE OLIVEIRA, E., MOREIRA, W., FONTOURA, R. Redispatch to Reduce Rotor Shaft Impacts Upon Transmission Loop Closure. Power System Stability Controls Subcommittee Meeting and Panel Session on Restoration Dynamics, IEEE PES 2008 General Meeting, Pittsburgh, PA, 20-24 July 2008.
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40. FREITAS, F. D., MARTINS, N., FERNANDES, L. F., Reliable Mode-Shapes for Major System Modes Extracted from Concentrated WAMS Measurements Processed by a SIMO Identification Algorithm. Session on System Identification and Estimation, Dynamic Performance, and Wind Generation, IEEE PES 2008 General Meeting, Pittsburgh, PA, 20-24 July 2008.
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41. ADIBI, M. M., MARTINS, N. Power System Restoration Dynamic Issues. Power System Stability Controls Subcommittee Meeting and Panel Session on Restoration Dynamics, IEEE PES 2008 General Meeting, Pittsburgh, PA, 20-24 July 2008.
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42. ROMMES, J., MARTINS, N. Specialized Eigenvalue Methods for Large-Scale Model Order Reduction Problem. Computational Science and Engineering, 2008. CSE'08. 11th IEEE International Conference on, Sao Paulo, Brasil, p. 83-90, 16-18 July 2008.
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43. ROMMES, J., MARTINS, N., Computing transfer function dominant poles of large second-order dynamical systems, SIAM Journal on Scientific Computing, Vol. 30, Issue 4, 2008, pp. 2137- 2157.
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44. MARTINS, N., de OLIVEIRA, E. J., MOREIRA, W.C., PEREIRA, J.L.R., FONTOURA, R.M. Redispatch to Reduce Rotor Shaft Impacts Upon Transmission Loop Closure. IEEE Transactions on Power Systems , USA, Vol. 23, No. 2, p. 592-600, May 2008.
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45. ROMMES, J., MARTINS, N. Computing Large-Scale System Eigenvalues Most Sensitive to Parameter Changes, with Applications to Power System Small-Signal Stability. IEEE Transactions on Power Systems , USA, Vol. 23, No. 2, p. 434-442, May 2008.
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46. F. D. FREITAS, N. MARTINS, LUÍS FILOMENO de J. F., Extracting Dominant Oscillation Modes and their Shapes from Concentrated WAMS Measurements of Ringdown Tests in Power Systems, presented by N. Martins at the CRIS International Workshop on Critical Infrastructures: Wide Area Measurements for Power Systems, March 6-7 2008, CEPEL, Rio de Janeiro, Brazil. (download). The Technical Program for this event may be downloaded from (download Technical Program).

47. MARTINS, N., PELLANDA, P.C., ROMMES, J. Computation of Transfer Function Dominant Zeros with Applications to Oscillation Damping Control of Large Power Systems. IEEE Transactions on Power Systems , USA, Vol. 22, No. 4, p. 1657-1664, November 2007.
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48. FERRAZ, J. C. R.; MARTINS, N.; TARANTO, G. N. Ajuste Coordenado de Estabilizadores em Sistemas Elétricos de Grande Porte Considerando múltiplos pontos de Operação. Artigo GAT-0107, Artigo GAT-0107, Proceedings XIX SNPTEE, Outubro 2007, Rio de Janeiro.

49. GOMES Jr., S; VARRICCHIO S. L.; QUINTÃO P. E. M.; COSTA, C. O.; MARTINS, N. Estudo de Validação para Utilização Integrada dos Programas PacDyn e HARMZs na Análise de RSS, Ressonâncias de Rede e Problemas Harmônicos. Artigo GAT-XXX, Proceedings XIX SNPTEE, Outubro 2007, Rio de Janeiro.

50. FREITAS, F. D.; BERGER, P. A.; MARTINS, N.; FALCÃO, D. M. A Estimação de Modos de Oscilação a partir de Sinais de Transitórios Eletromecânicos: Uma Aplicação ao Sistema Interligado Brasileiro. Artigo GAT-0119, Proceedings XIX SNPTEE, Outubro 2007, Rio de Janeiro.

51. ROMMES, J., MARTINS, n., Efficient computation of transfer function dominant poles of large second-order dynamical systems UU Preprint 1360, 2007, Accepted for publication in SIAM Journal on Scientific Computing
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52. SAVELLI, D.C.; PELLANDA P. C.; MARTINS, N.; MACEDO, N; BARBOSA, A. A.; LUZ G. S. Robust Signals for the TCSC Oscillation Damping Controllers of the Brazilian North-South Interconnection Considering Multiple Power Flow Scenarios and External Disturbances. Presented at the Panel Session on Advanced Applications of Stability Controls and sponsored by Power System Dynamic Performance Committee. Proceedings IEEE/PES General Meeting, Tampa, Florida, June 2007.

53. FERRAZ, J.C.R.; MARTINS, N.; TARANTO, G.N. Coordinated Stabilizer Tuning in Large Power Systems Considering Multiple Operating Points. Presented at Panel Session on Recent Applications of Linear Analysis Techniques and sponsored by Power System Dynamic Performance Committee. Proceedings IEEE/PES General Meeting, Tampa, Florida, June 2007.

54. ROMMES, J., MARTINS, N., Computing large-scale system eigenvalues most sensitive to parameter changes, with applications to power system small-signal stability UU Preprint 1364, 2007, Accepted for publication in IEEE Transactions on Power Systems
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55. ROMMES, J. and MARTINS, N., Efficient Computation of Multivariable Transfer Function Dominant Poles Using Subspace Acceleration. IEEE Transactions on Power Systems , USA, Vol. 21, No. 4, p. 1471-1483, November 2006.
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56. Paulo César Pellanda; Pierre Apkarian; MARTINS, N. Tuning Structurally Constrained Stabilizers for Large Power Systems via Nonsmooth Multi-Directional Search, Proceedings of the XII Latin-American Congress on Automatic Control, Salvador, BA, Brazil, publicação 155, pp. 425-430, 03-06 October 2006.
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57. ROMMES, J. and MARTINS, N., Efficient Computation of Transfer Function Dominant Poles using Subspace Acceleration. IEEE Transactions on Power Systems, USA, Vol. 21, No. 3, p. 1218-1226, August 2006.
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58. N. Martins, J.C.R. Ferraz, P.E.M. Quintão, A. de Castro, S.L. Varricchio, S.Gomes Jr, Linear Techniques Applied to Small-Signal Electromechanical stability, Model Order Reduction and Harmonic Studies. Intelligent Automation and Soft Computing, Vol. 12, No. 1, pp. 103-115, 2006.

59. ROMMES, J., MARTINS, N., PELLANDA, P.C., Efficient computation of large scale transfer function dominant zeros UU Preprint 1358, University of Utrecht, 2006, Submitted.
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60. RANGEL, Ricardo D.; WATANABE, Edson; MARTINS, Nelson. Modeling of STATCOM into Power System Stability Analysis Software. Paper # SP-102, Proceedings of the X SEPOPE Conference, Florianópolis, SC, Brazil, May 2006. (in Portuguese)

61. PASSOS FILHO, João A.; MARTINS, Nelson; FALCÃO, Djalma M.; Methodology for Assessment of Conflicts Among Power Flow Controllers. Paper # SP-084, Proceedings of the X SEPOPE Conference, Florianópolis, SC, Brazil, May 2006. (in Portuguese)

62. OLIVEIRA, Edimar J.; MARTINS, Nelson; FONTOURA, Rafael M.; PEREIRA, José L. R. Optimal Power Flow Considering the Rotor Shaft Impact Constraints at Transmission Loop Closure. Paper # SP-035, Proceedings of the X SEPOPE Conference, Florianópolis, SC, Brazil, May 2006. (in Portuguese)

63. ANDERSSON, G.; DONALEK, P.; FARMER, R.; HATZIARGYRIOU, N.; KAMWA, I.; KUNDUR, P.; MARTINS, N.; PASERBA, J.; POURBEIK, P.; SANCHEZ-GASCA, J.; SCHULZ, R.; STANKOVIC, A.; TAYLOR, C.; VITTAL, V. Causes of the 2003 Major Grid Blackouts in North America and Europe and Recommended Means to Improve System Dynamic Performance IEEE Transactions on Power Systems , USA, Vol. 20, No. 4, p.1922-1928, November 2005.
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64. S. GOMES JR., N. MARTINS, A. STANKOVIC; Panel session on FACTS Power Electronics Application to Improve Power System Dynamic Performance, Part IIPN19 Tuesday, October 11, 2005 1:30 pm-3:30 pm. Sponsored by: Power System Dynamic Performance Committee (Session Chair: JOHN PASERBA), Paper 05TD0652 Improved Controller Design Using New Dynamic Phasor Models of SVCs Suitable for High-Frequency Analysis (Panelist: Sergio Gomes Jr.). For other papers in this Panel Session please refer to the link below
http://www.ieeet-d.org/techpanels.html

65. GOMES JR, Sérgio; MARTINS, Nelson; VARRICCHIO, Sergio Luiz; PORTELA, Carlos Manuel de Jesus C. M. Modal Analysis of Electromagnetic Transients in ac Networks Having Long Transmission Lines IEEE Transactions on Power Delivery, USA, Vol. 20, No. 4, p. 2623-2630, October 2005.
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66. MARTINS, N.; SILVA, F.G.; PELLANDA, P.C.; Utilizing transfer function modal equivalents of low-order for the design of power oscillation damping controllers in large power systems. Power Engineering Society General Meeting, 2005. IEEE June 12-16, 2005 Page(s):2642 – 2648
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67. GOMES, S.; VARRICCHIO, S.L.; MARTINS, N.; PORTELA, C.; Results on modal analysis to speed-up electromagnetic transient simulations.Power Engineering Society General Meeting, 2005. IEEEJune 12-16, 2005 Page(s):2744 - 2751
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68. FERRAZ, J.C.R.; MARTINS, N.; TARANTO, G.N. A synthetic system for the robustness assessment of power system stabilizers, Power Systems Conference and Exposition, 2004. IEEE PES10-13 Oct. 2004 Page(s):1164 - 1170 vol.2
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69. VARRICCHIO, Sérgio Luis; GOMES Jr., Sergio, MARTINS, Nelson; Modal Analysis of Industrial System Harmonics Using the s-Domain ApproachIEEE Transactions on Power Delivery, USA, v. 19, No. 3, p. 1232-1237, July 2004.
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70. ANDERSSON, G; DONALEK, P.; FARMER, R.; HATZIARGYRIOU, N.; KAMWA, I.; KUNDUR, P; MARTINS, Nelson; PASERBA, J.; POURBEIKK, P. ; SANCHEZ-GASCA, J.; SCHULZ, R.; STANKOVIC, A.; TAYLOR, C..Causes of the 2003 Major Grid Blackouts in North America and Europe, and Recommended Means to Improve System Dynamic Performance, EU Conference on Integration of DER and RES, 2004.
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71. MARTINS, N.; OLIVEIRA, Edimar J; PEREIRA, J.L.R.; FERREIRA, L.C.A. Reducing standing phase angles via interior point optimum power flow for improved system restoration, Power Systems Conference and Exposition, 2004. IEEE PES10-13 Oct. 2004 Page(s):404 - 408 vol.1
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72. SAVELLI, Diego C.; PELLANDA, Paulo C.; MACEDO, Nilo J. P.; MARTINS, Nelson; LUZ, Guilherme S. Signal Synthesis and Choice of Structures for the TCSC Stabilizers of the Brazilian North-South Interconnection, considering Robustness to External Disturbances. Paper # SP-151, Proceedings of the X SEPOPE Conference, Florianópolis, SC, Brazil, May 2004. (in Portuguese)

73. GOMES Jr., Sérgio; VARRICCHIO Sérgio L.; QUINTÂO, Paulo E. M.; MARTINS, Nelson; COSTA, Cristiano O. Model Equivalence between PacDyn and HARMZs for Analysis of SSR, Network Resonances and Harmonic Problems. Paper # SP-152, Proceedings of the X SEPOPE Conference, Florianópolis, SC, Brazil, May 2004. (in Portuguese)

74. FREITAS, Francisco D.; MARTINS, Nelson; Power Systems Transfer Function Identification of Output Noisy Signals. Paper # SP-141, Proceedings of the X SEPOPE Conference, Florianópolis, SC, Brazil, May 2004. (in Portuguese)

75. PASSOS FILHO, João A.; FERREIRA, Luiz Cláudio de A; MARTINS, Nelson; FALCÃO, Djalma Mosqueira; BARBOSA, Adriano de Andrade. Simulação da Curva de Carga Semanal e de Dispositivos Discretos para Avaliação do Desempenho de Controle de Tensão em Sistemas Elétricos de Grande Porte, paper # SP-168, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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76. GOMES JR, Sérgio; QUINTÃO, Paulo E. M.; MARTINS, Nelson. Subsynchronous Resonance Results Obtained with a Comprehensive Small-Signal Stability Program, paper # SP-113, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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77. MOHN, Fritz Walter; SOUZA, Antônio Carlos Zambroni de; MARTINS, Nelson. Continuation Power Flow With the Help of the Cric Method, paper # SP-110, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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78. GOMES, Camilo Braga; FERRAZ, Júlio Cézar Rezende; MARTINS, Nelson; TARANTO, Glauco Nery. Investigating the Possibility of Adverse Dynamic Interaction between Neighbor Secondary Voltage Regulation Areas, paper # SP-49, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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79. OLIVEIRA, Edimar J; MARTINS, Nelson; PEREIRA, José Luiz Rezende; DELVIZIO, Erick da Silva; FERREIRA, Luiz Cláudio A.; Análise de Fechamento de Anel via Fluxo de Potência Ótimo, paper # SP-85, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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80. FERREIRA, Luiz Cláudio de A; HENRIQUES, Ricardo M.; PASSOS FILHO, João A.; MARTINS, Nelson; FALCÃO, Djalma Mosqueira. Influência da Representação de Motores de Indução e de Dispositivos de Controle Automáticos e Discretos em Estudos de Segurança de Tensão, paper # SP-48, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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81. CASTRO, Alex de; QUINTÃO, Paulo E. M.; GOMES JR, Sérgio; MARTINS, Nelson; PINTO, Herminio J.C.P. An Integrated Plotting Tool for the Visualization of Results Produced by Multiple Power System Analysis Software, paper # SP-13, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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82. VARRICCHIO, Sérgio Luis; GOMES Jr., Sergio; MARTINS, Nelson; ARAUJO, Leandro R.; VÉLIZ, Franklin C.; COSTA, Cristiano de O. Advanced Tool for Harmonic Analysis of Power Systems, paper # SP-129, Proceedings of the IX SEPOPE Conference, Rio de Janeiro, Brazil, May 2004.
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83. MARTINS, Nelson; QUINTÃO, Paulo Eduardo Martins. Computing Dominant Poles of Power System Multivariable Transfer Functions. IEEE Transactions on Power Systems, USA, v. 18, n. 01, p. 152-159, 2003.
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84. VARRICCHIO, Sérgio Luis; MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia. A Newton-Raphson Method Based on Eigenvalue Sensitivities to Improve Harmonic Voltage Performance. IEEE Transactions on Power Delivery, USA, v. 18, n. PE-021PRD, p. 334-342, 2003.
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85. CARVALHO, Antonio Ricardo C D; BIANCO, André; AZEVEDO, Rogério M; VARRICCHIO, Sérgio Luis; MARTINS, Nelson; MENZIES, Donald; GRAHAM, John F; UCHOAS, Fabiano. Estudo de Arco Secundário para Aplicação de Religamento Monopolar na Interligação Brasil-Argentina. In: SNPTEE, 2003, Uberlândia. Proceedings of XVII SNPTEE. 2003.

86. MARTINS, Nelson; HENRIQUES, Ricardo Motta; BARBOSA, Adriano de Andrade; GOMES JR, Sérgio; GOMES, Camilo Braga; MARTINS, Antonio Carlos Barbosa. Impact of Induction Motor Loads in System Loadability Margins and Damping of Inter-Area Modes. In: IEEE/PES 2003 GENERAL MEETING, 2003, Toronto. Proceedings of IEEE/PES 2003 General Meeting. 2003.
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87. MARINHO, José Renato Bonato; FERRAZ, Júlio Cézar Rezende; MARTINS, Nelson; PRADA, Ricardo B; GUIMARÃES, Carlos Henrique Costa. Controle Coordenado de Tensão Aplicado a Usinas Nucleares Eletricamente Próximas. In: SNPTEE, 2003, Uberlândia. Proceedings of XVII SNPTEE. 2003.
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88. PASSOS FILHO, João Alberto; FERREIRA, Luiz Cláudio de A; MARTINS, Nelson; SOUZA, Antônio Carlos Zambroni de. Benefícios da Representação do Controle Automático e Discreto de Bancos de Capacitores/Reatores e de LTC Sistêmicos em Estudos de Segurança de Tensão. In: SNPTEE, 2003, Uberlândia. Proceedings of XVII SNPTEE. 2003.

89. VARIZ, Abilio Manuel; COSTA, Vander Menengoy da; PEREIRA, José Luiz Rezende; MARTINS, Nelson. Improved Representation of Control Adjustments Into the Newton-Raphson Power Flow. International Journal Of Electrical Power And Energy Systems, England, p. 501-513 , 2003.
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90. GOMES JR, Sérgio; MARTINS, Nelson; PORTELA, Carlos Manuel de Jesus C. M. Computing Small-Signal Stability Boundaries for Large-Scale Power Systems. IEEE Transactions on Power Systems, USA, n. PE-011PRS, p. xx-xx, 2003.
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91. DELVIZIO, Erick da Silva; MARTINS, Nelson; OLIVEIRA, Edimar J; PEREIRA, José Luiz Rezende;FERREIRA, Luiz Cláudio A. Recomposição de Sistemas Elétricos Estudos para Fechamento de Anel Via Método de Pontos Interiores. In: SNPTEE, 2003, Uberlândia. Proceedings of XVII SNPTEE. 2003.

92. VARIZ, Abilio Manuel; COSTA, Vander Menengoy da; PEREIRA, José Luiz Rezende; MARTINS, Nelson. Improved Representation of Control Adjustments Into the Newton-Raphson Power Flow. International Journal Of Electrical Power And Energy Systems, Inglaterra, p. xx-xx, 2002.

93. N. Martins; FERRAZ, Júlio C. Resende; GOMES JR., Sergio. Impact of Interactions among Power System Controls. EPRI/NSF Workshop on Global Dynamic Optimization of the Electric Power Grid -, Playacar, Mexico, 2002.
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94. GOMES Jr., Sergio, Martins, Nelson, VARRICCHIO, Sergio L., PORTELA, Carlos. Modal Analysis of Electromagnetic Transients in ac Networks having Long Transmission Lines, IEEE Proceedings of the Transmission and Distribution, March 18-22, 2002, São Paulo, SP, Brazil.
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95. VARRICCHIO, Sérgio Luis; MARTINS, Nelson. Modal Analysis of Industrial System Harmonics Using the s-Domain Approach, IEEE Proceedings of the Transmission and Distribution, March 18-22, 2002, São Paulo, SP, Brazil.
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96. MARTINS, Nelson; GOMES JR, Sérgio; QUINTÃO, Paulo Eduardo Martins; FERRAZ, Júlio Cezar Rezende; VARRICCHIO, Sérgio Luis; CASTRO, Alex de. Some Recent Developments in Small-Signal Stability Control. In: POWER ENGINEERING SOCIETY WINTER MEETING, 2002, New York. Proceedings of Power Engineering Society Winter Meeting. 2002.
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97. PASSOS FILHO, João Alberto; MARTINS, Nelson; FERRAZ, Júlio Cézar Rezende; FALCÃO, Djalma Mosqueira; PINTO, Hermínio José da Cunha Pereira. Modelagem de Chaveamento Automático de Bancos de Capacitores/Reatores para Estudos com Fluxo de Potência Continuado. In: VIII SEPOPE - SIMPÓSIO DE ESPECIALISTAS EM PLANEJAMENTO DA OPERAÇÃO E EXPANSÃO ELÉTRICA, 2002, Brasília. Proceedings of VIII SEPOPE. 2002.
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98. HENRIQUES, Ricardo Motta; MARTINS, Nelson; FERRAZ, Júlio Cézar Rezende; PINTO, Hermínio José da Cunha Pereira; MARTINS, A C B; CARNEIRO JR, S. Influência da Representação de Carga Tipo Motor de Indução na Avaliação do Colapso de Tensão da Área Rio. In: VIII SEPOPE, 2002, Brasilia. Proceedings of VIII SEPOPE. 2002.
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99. HENRIQUES, Ricardo Motta; MARTINS, Nelson; FERRAZ, Júlio Cézar Rezende; PINTO, Hermínio José da Cunha Pereira; MARTINS, A C B; CARNEIRO JR, S. Impact of Induction Motors Loads into Voltage Stability Margins of Large Systems. In: PSCC - POWER SYSTEMS COMPUTATION CONFERENCE, 2002, Sevilha. Proceedings of XIV PSCC. 2002.

100. GOMES, Camilo Braga; MARTINS, Nelson; SANTOS, Marcelos G dos; TARANTO, Glauco Nery; FERRAZ, Júlio Cézar Rezende; GOMES JR, Sérgio. Estudos Preliminares da Aplicação de Controle Coordenado de Tensão na Área Rio. In: VII EDAO, 2002, Foz do Iguaçu. Proceedings of VII EDAO. 2002.
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101. MARTINS, Nelson; GOMES JR, Sérgio; PORTELA, Carlos Manuel de Jesus C. M. Computing Small-Signal Stability Boundaries for Large-Scale Power Systems. In: ERMAC - ENCONTRO REGIONAL DE MATEMÁTICA APLICADA E COMPUTACIONAL, 2002, Florianópolis. ERMAC - Encontro Regional de Matemática Aplicada e Computacional. 2002.

102. FERRAZ, Júlio Cézar Rezende; MARTINS, Nelson; ZENI JR, N; SOARES, J M; TARANTO, Glauco Nery. Adverse Increase in Generator Terminal Voltage and Reactive Power Transients Caused by Power System Stabilizers. In: POWER ENGINEERING SOCIETY WINTER MEETING, 2002, New York. Proceedings of Power Engineering Society Winter Meeting. 2002.
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103. Varricchio, Sergio L.; Gomes Jr., Sérgio, MARTINS, Nelson, Véliz, Franklin C.. Two Powerful Network Modeling Approaches for the Modal Analysis of Harmonic Problems . In: VIII SEPOPE, 2002, Brasilia. Proceedings of VIII SEPOPE. 2002.
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141. VARRICCHIO, Sérgio Luis; MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia; CARNEIRO JR, S. Studying Harmonic Problems Using a Descriptor System Approach. In: IPST'99 - INTERNATIONAL CONFERENCE ON POWER SYSTEMS TRANSIENTS, 1999, Budapeste. Proceedings of IPST'99. 1999.
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142. MARTINS, Nelson; BARBOSA, Adriano de Andrade; FERRAZ, Júlio Cézar Rezende; SANTOS, Marcelos G dos; BERGAMO, A L B; YUNG, Chou Shaw; OLIVEIRA, Venilton Rodrigues de; MACEDO, Nilo José Pereira de. Retuning Stabilizers for the North-South Brazilian Interconection. In: POWER ENGINEERING SOCIETY SUMMER MEETING, 1999, Alberta. Proceedings of Power Engineering Society Summer Meeting. 1999.
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143. CARVALHO, Antonio Ricardo C D; GOMES JR, Sérgio; PING, Wo Wei; MARTINS, Nelson; GRAHAM, J; JONSSON, Tomas. Comparação do Desempenho Dinâmico de Conversores Convencionais e Conversores com Capacitor de Comutação. In: VIII ERLAC, 1999, Ciudad del Leste. Proceedings of VIII ERLAC. 1999.

144. TARANTO, Glauco Nery; BOMFIM, Antonio Luiz Bergamo Do; FALCÃO, Djalma Mosqueira; MARTINS, Nelson. Automated Design of Multiple Damping Controllers Using Genetic Algorithms. In: POWER ENGINEERING SOCIETY WINTER MEETING, 1999, New York. Proceedings of Power Engineering Society Winter Meeting. 1999. v. 1, p. 539-544.

145. LIMA, Leonardo Tadeu Garcia; MARTINS, Nelson; CARNEIRO JR, S. Augmented State-Space Formulations for the Study of Electric Network Including Distributed-Parameter Transmission Line Models. In: IPST'99 - INTERNATIONAL CONFERENCE ON POWER SYSTEMS TRANSIENTS, 1999, Budapeste. Proceedings of IPST'99. 1999.
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146. COSTA, V M da; MARTINS, Nelson; PEREIRA, José Luiz Rezende. Developments in the Newton Raphson Power Flow Formulation Based on Current Injections. IEEE Transactions on Power Systems , USA, v. 14, n. 4, p. 1320-1326, 1999.
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147. GOMES JR, Sérgio; MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira. Utilização do Método de Nyquist Para a Estabilização de Sistemas de Potência Envolvendo Alocação de Par de Pólos Complexos. In: XII CONGRESSO BRASILEIRO DE AUTOMÁTICA, 1998, Uberlândia. Proceedings of XII Congresso Brasileiro de Automática. 1998.

148. MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira; PING, Wo Wei; BARBOSA, Adriano de Andrade; SANTOS, Marcelos G dos; BONFIM, A B; GOMES, Paulo; MACEDO, Nilo José Pereira de; MARTINS, A C B; MONTEATH, L; SILVA, E F. Retuning the Oscillation Damping Sources Due to the North-South Brazilian Interconnection. In: CIGRÉ MEETING, 1998, Paris. Proceedings of Cigré Meeting 1998.

149. COSTA, V M da; MARTINS, Nelson; PEREIRA, José Luiz Rezende. Representação de Controle Definidos Pelo Usuário no Problema de Fluxo de Potência. In: VI SEPOPE, 1998, Salvador. Proceedings of VI SEPOPE. 1998.

150. GOMES JR, Sérgio; PINTO, Hermínio José da Cunha Pereira; MARTINS, Nelson; LJUNGQVIST, Rolf; RANGEL, Ricardo Diniz; JONSSON, Tomas; CARVALHO, Antonio Ricardo C D. Modeling ABB's HVDC/CCC Into Cepel Simulation Package. In: VI SEPOPE, 1998, Salvador. Proceedings of VI SEPOPE. 1998.
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151. MELLO, J C O; MARTINS, Nelson; ALVES, F R M; PING, Wo Wei; S SOBRINHO, E; PINTO, Hermínio José da Cunha Pereira; OLIVEIRA, Glória Suzana Gomes de; CARVALHO, D; CARVALHO, Antonio Ricardo C D; RANGEL, Ricardo Diniz; ROMERO, S P; GRANVILLE, S; MELLO, A C G; ROITMAN, Marcos; LUZ, J C F; FONTOURA, N; GOMES, Paulo. Integration and Application of Computer Programs in Power System Planning and Operations - New Perspectives. In: VI SEPOPE, 1998, Salvador. Proceedings of VI SEPOPE. 1998.
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152. FERRAZ, Júlio Cézar Rezende; MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira; FALCÃO, Djalma Mosqueira. Implementação do Método de Continuação na Solução do Problema de Fluxo de Potência em Sistemas Elétricos. In: XII CONGRESSO BRASILEIRO DE AUTOMÁTICA, 1998, Uberlândia. Proceedings of XII Congresso Brasileiro de Automática. 1998. v. VI, p. 1949-1954.

153. MARTINS, Nelson; CORSI, Sandro; ANDERSSON, Goran; GIBBARD, Mike J; SANCHEZGASCA, J J; SILVA, A; TARANTO, Glauco Nery. Impacts of the Interaction Among Power System Controls. In: VI SEPOPE, 1998, Salvador. Proceedings of VI SEPOPE. 1998.
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155. TARANTO, Glauco Nery; WANG, Shaopeng; CHOW, Joe; MARTINS, Nelson. Decentralized Design of Power System Damping Controlls Using a Linear Matrix Inequality Algorithm. In: VI SEPOPE, 1998, Salvador. Proceedings of VI SEPOPE. 1998.
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156. GOMES, Paulo; MARTINS, Nelson; MELLO, F P de; VIEIRA FILHO, Xisto. Assuring System Reliability in a Competitive Enviroment. In: CIGRÉ MEETING, 1998, Paris. Proceedings of CIGRÉ Meeting. 1998.
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157. GOMES, Paulo; MARTINS, Nelson; MELLO, F P de; VIEIRA FILHO, Xisto. Assuring System Reliability in a Competitive Enviroment. In: CIGRÉ MEETING, 1998, Paris. Proceedings of CIGRÉ Meeting. 1998.
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158. GOMES, Paulo; LIMA, J W Maragon; MARTINS, Nelson; VIEIRA FILHO, Xisto. Aspectos de Estabilidade em Ambientes Competitivos. In: XII CONGRESSO BRASILEIRO DE AUTOMÁTICA, 1998, Uberlândia. Proceedings of XII Congresso Brasileiro de Automática. 1998.

159. MARTINS, Nelson; COSTA, V M da; PEREIRA, José Luiz Rezende. Modelagem de Dispositivos de Controle Numa Formulação Aumentada Para Fluxo de Potência. Revista Brasileira de Controle & Automação (SBA), Brasil, v. 9, n. 1, 1998.

160. COSTA, V M da; PEREIRA, José Luiz Rezende; MARTINS, Nelson. Uma Nova Abordagem Para Representação de Barras PV em Estudos de Fluxo de Potência. In: III CONGRESSO LATINO AMERICANO: GERAÇÃO E TRANSMISSÃO DE ENERGIA ELÉTRICA, 1997, Campos do Jordão. Proceedings of III Congresso Latino Americano: Geração e Transmissão de Energia Elétrica. 1997.

161. LIMA, Leonardo Tadeu Garcia; MARTINS, Nelson; CARNEIRO JR, S. Dynamic Equivalent for Electromagnetic Transient Analysis Including Frequency-Dependent Transmission Line Parameters. In: INTERNATIONAL POWER SYSTEM TRANSIENTES SEMINAR, 1997, Seatle. Proceedings of International Power System Transientes Seminar. 1997.

162. COSTA, V M da; MARTINS, Nelson; PEREIRA, José Luiz Rezende. Um Procedimento Alternativo Para o Problema do Fluxo de Potência. Revista da Sociedade Brasileira de Automática, Brasil, v. 8, n. 1, 1997.

163. MARTINS, Nelson. The Dominant Pole Spectrum Eigensolver. IEEE Transactions on Power Systems , USA, v. 12, n. 1, p. 245-254, 1997.
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164. CONCORDIA, Charles; HAUER, J F; JANSSENS, N; KORTE, R; OSTOJIC, D; THORVALDSSON, B; KUNDUR, Prabha; LARSEN, E; LERCH, E; LYSHEIM, D; PASERBA, John; MARTINS, Nelson; TOAL, J; TROTIGNON, M. Analysis and Control of Power System Oscillations. Electra, França, v. 170, 1997.

165. GRANVILLE, S; MELLO, J C O; MELO, A C G; VIEIRA FILHO, Xisto; PINTO, Hermínio José da Cunha Pereira; MARTINS, Nelson. Voltage Collapse Evaluation by Combining Interior Point Methods and Modal Analysis. In: V SEPOPE, 1996, Recife. Proceedings of V SEPOPE. 1996.

166. MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira; GAMA, Carlos; CAVALCANTI, J A; LEONI, R L; SOUTO, R V; MACEDO, Nilo José Pereira de; EIRAS, M J X. Oscillation Damping Analysis and Control Studies of the Future Interconnection Between the North-Northeast and South-Southeast Systems. In: V SEPOPE, 1996, Recife. Proceedings of V SEPOPE. 1996.
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167. LIMA, Leonardo Tadeu Garcia; MARTINS, Nelson; PEREIRA, José Luiz Rezende. Equivalentes Dinâmicos de Ordem Reduzida de Ciruitos Elétricos Para Simulação de Transitórios Eletromagnéticos. In: XI CONGRESSO BRASILEIRO DE AUTOMÁTICA, 1996, São Paulo. Proceedings of XI Congresso Brasileiro de Automática. 1996.

168. CAMPAGNOLO, Jorge Mario; MARTINS, Nelson; FALCÃO, Djalma Mosqueira. Refactored Bi-Iteration: A High Performance Eigensolution Method for Large Power System Matrices. IEEE Transactions on Power Systems , USA, v. 11, n. 3, p. 1228-1235, 1996.
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169. MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia; PINTO, Hermínio José da Cunha Pereira. Computing Dominant Poles of Power System Transfer Functions. IEEE Transactions on Power Systems, USA, v. 11, n. 1, p. 162-170, 1996.
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170. MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira. Modern Tools for the Small-Signal Stability Analysis and Design of FACTS Assisted Power System. In: STOCKHOLM POWER TECH. CONFERENCE, 1995, Stockolm. Proceedings of Stockholm Power Tech. Conference. 1995.
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171. MARTINS, Nelson; FERRAZ, Júlio Cézar Rezende; PEREIRA, José Luiz Rezende; COSTA, Vander Menengoy da. Análise de Sensibilidade no Ponto de Colapso de Tensão, Determinado Através de Método de Continuação, em Sistemas Elétricos de Potência. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA - UFJF, 1995, Juiz de Fora. Proceedings of Seminário de Iniciação Científica - UFJF. 1995.

172. LEFEBVRE, C S; GOLE, A M; REEVE, J; PILOTTO, Luiz Alberto da Silva; MARTINS, Nelson; BHATTACHARYA, S. Working group on dynamic performance and modeling of DC systems andpower electronics for transmission systems. Report on test systems forAC/DC interaction studies. IEEE Transactions on Power Systems, USA, v. 10, n. 4, p. 2027-2034, 1995.
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173. LIMA, Leonardo Tadeu Garcia; BEZERRA, Lício Hernandez; TOMEI, Carlos; MARTINS, Nelson. New Methods for Fast Small-Signal Stability Assessment of Large Scale Power Systems. IEEE Transactions on Power Systems , USA, v. 10, n. 4, p. 1979-1985, 1995.
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174. CAMPAGNOLO, Jorge Mario; MARTINS, Nelson; FALCÃO, Djalma Mosqueira. An Efficient and Robust Eigenvalue Method for Small-Signal Stability Assessment in Parallel Computers. IEEE Transactions on Power Systems , USA, v. 10, n. 1, p. 506-511, 1995.
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175. VIEIRA FILHO, Xisto; MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira; PEREIRA, M V F; GOMES, Paulo; SANTOS, Marcelos G dos. Tools for Voltage Stability Analysis, Including a Probabilistic Approach. In: IV SEPOPE, 1994, Foz do Iguaçu. Proceedings of IV SEPOPE. 1994.

176. FIGUEIREDO, E F; VIEIRA FILHO, Xisto; MARTINS, Nelson; GOMES, Paulo; VALGAS, H M; ZENI, N; COSTA, P A P; MIKAMI, Leo; PIRES, F B; PINTO, W S; SOARES, J M; AIRES, J C O. The Brazilian Experience on the Utilization of Stabilizing Signals for Damping Eletromechanical Oscillations-Survey of Problems Found, Methods and Solutions Adopted and Recomendations. In: 1994 CIGRE SESSION, 1994, Paris. Proceedings of 1994 Cigre Session. 1994.

177. MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira; BIANCO, André; MACEDO, Nilo José Pereira de. TCSC Control Structures for Line Power Scheduling and Methods to Determine Their Location and Tuning to Damp System Oscillations. In: IV SEPOPE, 1994, Foz do Iguaçu. Proceedings of IV SEPOPE. 1994.
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178. PINTO, Hermínio José da Cunha Pereira; MARTINS, Nelson; PEREIRA, José Luiz Rezende. Small Signal Voltage Stability Analysis. In: VI CONGRESSO LATINO AMERICANO DE CONTROLE AUTOMÁTICO, 1994, Rio de Janeiro. Proceedings of VI Congresso Latino Americano de Controle Automático. 1994.

179. PINTO, Hermínio José da Cunha Pereira; MARTINS, Nelson; VIEIRA FILHO, Xisto; BIANCO, André; GOMES, Paulo; SANTOS, Marcelos G dos. Modal Analysis for Voltage Stability: Application at Base Case and Point of Collapse. In: III VOLTAGE STABILITY, SECURITY & CONTROL, 1994, Davos. Proceedings of III Voltage Stability, Security & Control. 1994.
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180. GOMES, Paulo; LUZ, J C F; SANTOS, Marcelos G dos; CARVALHO, J F M; THOMÉ, L M S; OLIVEIRA, S E M de; MARTINS, Nelson. Influência das Ações de Controle em Malhas Fechadas no Desempenho de Sistemas Elétricos. In: II SIMPASE - SIMPÓSIO DE AUTOMAÇÃO DE SISTEMAS ELÉTRICOS, 1994, Belo Horizonte. Proceedings of II SIMPASE. 1994.

181. PELLANDA, Paulo Cesar; GOMES, G M P; LIMA, Leonardo Tadeu Garcia; MARTINS, Nelson. Controle Robusto Aplicado em Sistemas Elétricos de Potência. In: VI CONGRESSO LATINO AMERICANO DE CONTROLE AUTOMÁTICO, 1994, Rio de Janeiro. VI Congresso Latino Americano de Controre Automático. 1994.

182. CAMPAGNOLO, Jorge Mario; MARTINS, Nelson; FALCÃO, Djalma Mosqueira. Aplicação de Processamento Paralelo na Avaliação da Estabilidade a Pequenas Perturbações: Algoritmo Eficiente e Robusto para Cálculo de Autovalores. In: VI CONGRESSO LATINO AMERICANO DE CONTROLE AUTOMÁTICO, 1994, Rio de Janeiro. Proceedings of VI Congresso Latino Americano de Controle Automático. 1994.

183. CAMPAGNOLO, Jorge Mario; MARTINS, Nelson; PEREIRA, José Luiz Rezende; LIMA, Leonardo Tadeu Garcia; PINTO, Hermínio José da Cunha Pereira; FALCÃO, Djalma Mosqueira. Fast Small-Signal Stability Assessment Using Parallel Processing. IEEE Transactions on Power Systems, USA, v. 9, n. 2, p. 949-956, 1994.
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184. MARTINS, Nelson; MACEDO, Nilo José Pereira de; BIANCO, André; PINTO, Hermínio José da Cunha Pereira; LIMA, Leonardo Tadeu Garcia. Proposal for a Benchmark System for Power System Oscillation Analysis and Control. In: COLLOQUIUM ON POWER SYSTEM DYNAMIC PERFORMANCE - CIGRÉ – SC 38, 1993, Florianópolis. Proceedings of Colloquium on Power System Dynamic Performance - CIGRÉ – SC 38. 1993.
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185. LIMA, Leonardo Tadeu Garcia; PEREIRA, José Luiz Rezende; CAMPAGNOLO, Jorge Mario; PINTO, Hermínio José da Cunha Pereira; MARTINS, Nelson; FALCÃO, Djalma Mosqueira. Aplicação de Processamento Paralelo na Avaliação da Estabilidade a Pequenas Pertubações em Sistemas Elétricos de Potência. In: XII SNPTEE, 1993, Recife. Proceedings of XII SNPTEE. 1993.

186. LIMA, Leonardo Tadeu Garcia; MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira. Mixed Real/Complex Factorization. IEEE Transactions on Power Systems, USA, v. 3, n. 1, p. 302-308, 1993.
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187. MARTINS, Nelson; MACEDO, Nilo José Pereira de; LIMA, Leonardo Tadeu Garcia; PINTO, Hermínio José da Cunha Pereira. Control Strategies for Multiple Static Var Compensators in Long Distance Voltage Supported Transmission Systems. IEEE Transactions on Power Systems , USA, v. 8, n. 3, p. 1107-1117, 1993.
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188. MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia; PINTO, Hermínio José da Cunha Pereira; MACEDO, Nilo José Pereira de. The Brazilian Utilities Package for the Analysis and Control of Small-Signal Stability of Large Scale AC/DC Power Systems. In: III SEPOPE, 1992, Belo Horizonte. Proceedings of III SEPOPE. 1992.
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189. MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia; PINTO, Hermínio José da Cunha Pereira; MACEDO, Nilo José Pereira de. A State-of-the-Art Computer program for the Analysis and Control of Small-Signal Stability of Large AC/DC Power Systrems. In: IERE WORKSHOP ON NEW ISSUES IN POWER SYSTEM SIMULATION, 1992, Caen. Proc. of Workshop on New Issues in Power System Simulation. 1992. p. 11-19.

190. MARTINS, Nelson; PINTO, Hermínio José da Cunha Pereira; LIMA, Leonardo Tadeu Garcia. Efficient Methods for Finding Transfer Function Zeros of Power Systems. IEEE Transactions on Power Systems , USA, v. 7, n. 3, p. 1350-1361, 1992.
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191. MARTINS, Nelson. Some Present and Future Activities in CEPEL's Power System Dynamics Area. In: WORKSHOP ON APPLICATION OF ADVANCED MATHEMATICS TO POWER SYSTEMS, 1991, San Francisco. Proceedings of EPR/NSF Workshop on Application of Advanced Mathematics to Power Systems. 1991.

192. MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia. Determination of Suitable Locations for Power System Stabilizers and Static Var Compensators for Damping Electromechanical Oscillations in Large Scale Power Systems. IEEE Transactions on Power Systems, USA, v. 5, n. 4, p. 1455-1469, 1990.
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193. MARTINS, Nelson; LIMA, L T G. Eigenvalue and Frequency Domain Analysis of Small-Signal Electromechanical Stability Problems. In: IEEE Symposium on Application of Eigenanalysis and Frequency Domain Method for System Dynamic Performance, 1989, .p. 17-33.
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194. MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia. Técnicas de Decomposição para Cálculo Eficiente de Problemas de Estabilidade a Pequenas Pertubações de Sistemas de Potência de Grande Porte. In: VII CONGRESSO BRASILEIRO DE AUTOMÁTICA, 1988, São José dos Campos. Proceedings of VII Congresso.

195. MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia. Decomposition Technique for Efficient Computation of Small-Signal Stability Problems in Large Power Systems. In: INTERNATIONAL CONFERENCE ON HIGH TECHNOLOGY IN THE POWER INDUSTRY (IASTED), 1988, Phoenix. Proceedings of International Conference on High Technology in the Power Industry (IASTED). 1988.
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196. BAITELLI, Roberto; MARTINS, Nelson; MIKAMI, Leo; SANTOS JR, J B. Definição da Localização de Sinais Estabilizadores em Sistemas Elétricos Multimáquina: Metodologia Utilizada Pelo Programa Autoval. In: IX SNPTEE, 1987, Belo Horizonte. Proceedings of IX SNPTEE. 1987.

197. GOMES, Paulo; BOMFIM, Antonio Luiz Bergamo Do; PEDROSO, Alquindar de Souza; MARTINS, Nelson. Application of Eigenvalue Techniques in Power System Dynamics. In: I SEPOPE, 1987, Rio de Janeiro. Proceedings of I SEPOPE. 1987.

198. MARTINS, Nelson; BAITELLI, Roberto. Programa para a Análise da Estabilidade a Pequenas Pertubações de Sistemas de Potência Multimáquina. In: VIII SNPTEE, 1986, São Paulo. Proceedings of VIII SNPTEE. 1986.

199. MARTINS, Nelson; BAITELLI, Roberto. Programa de Autovalores Para Sistemas de Potência Multimáquina com Possibilidade de Representar Controladores de Qualquer Ordem e Topologia. In: II CONGRESSO LATINO AMERICANO DE AUTOMÁTICA, 1986, Buenos Aires. Proceedings of II Congresso Latino Americano de Automática. 1986.

200. S SOBRINHO, E; PEDROSO, Alquindar de Souza; PING, Wo Wei; MARTINS, Nelson. Modelo de Elo de CCAT com Representação Detalhada do Sistema de Controle para Uso em Programa de Estabilidade. In: VIII SNPTEE, 1986, São Paulo. Proceedings of VIII SNPTEE. 1986.

201. MARTINS, Nelson. Frequency Response Techniques Applied to the Design of Additional Stabilizing Signals for Static Var Compensators in Power Systems. In: INTERNATIONAL CONFERENCE ON HIGH TECHNOLOGY IN THE POWER INDUSTRY (IASTED), 1986, Bozeman, Montana. Proceedings of International Conference on High Technology in the Power Industry (IASTED). 1986.

202. MARTINS, Nelson. Efficient Eigenvalue and Frequency Response Methods Applied to Power System Small-Signal Stability Studies. IEEE Transactions on Power Systems , USA, v. PWRS-1, n. 1, p. 217-226, 1986.
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203. MARTINS, Nelson. Análise e Controle de Oscilações Eletromecânicas Pouco Amortecidas em Sistemas Elétricos. In: I ENCONTRO ARGENTINO-BRASILEIRO SOBRE ESTABILIDADE DE SISTEMAS DE POTÊNCIA, 1985, Foz do Iguaçu. Proceedings of I Encontro Argentino-Brasileiro Sobre Estabilidade de Sistemas de Potência. 1985.

204. OLIVEIRA, S E M de; SANTOS, Marcelos G dos; MARTINS, Nelson. Ressonância Subsíncrona em Geradores Ligados à Redes Compensadas por Capacitores Série. In: VII SEMINÁRIO NACIONAL DE PRODUÇÃO E TRANSMISSÃO DE ENERGIA ELÉTRICA, 1984, Brasília. Proceedings of VII Seminário Nacional de Produção e Transmissão de Energia Elétrica. 1984.

205. MARTINS, Nelson. O Efeito de Compensadores Estáticos de Reativo na Estabilidade a Pequenas Perturbações de Sistemas de Potência. In: V CONGRESSO BRASILEIRO DE AUTOMÁTICA, 1984, Campina Grande. Proceedings of V Congresso Brasileiro de Automática. 1984.

206. MARTINS, Nelson; PING, Wo Wei; SZECHTMAN, M. Exploração da Capacidade de Controle dos Elos CC na Estabilização de Sistemas de Potência. In: VII SNPTEE, 1984, Brasília. Proceedings of VII SNPTEE. 1984.

207. MARTINS, Nelson; BAITELLI, Roberto. Determinação da Localização e Ajuste de Parâmetros para Sinais Adicionais Estabilizadores em Sistemas de Potência Multimáquina. In: VII SNPTEE, 1984, Brasília. Proceedings of VII SNPTEE. 1984.

208. MARTINS, Nelson; PING, Wo Wei; SZECHMAN, M. Exploiting the HVDC Link Control Capability in Power Systems Stabilization. In: INTERNATIONAL POWER CONFERENCE (IPEC), 1983, Tóquio. Proceedings of International Power Conference. 1983.

209. MARTINS, Nelson; STEPHAN, R. Power System Dynamic Stability Limits Considering the Effects of Non-Linear Loads. In: X IMACS WORLD CONGRESS ON SYSTEMS SIMULATION AND SCIENTIFIC COMPUTATION, 1982, Montreal. Proceedings of X IMACS World Congress on Systems Simulation and Scientific Computation. 1982.

210. MARTINS, Nelson; BAITELLI, Roberto. Analysis of Low Damped Electromechanical Oscillations in Large Power Systems. In: 1982 CIGRÉ SESSION, 1982, Paris. Proceedings of 1982 CIGRÉ Session. 1982.
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211. MARTINS, Nelson; BAITELLI, Roberto. Análise do Amortecimento da Oscilações Eletromecânicas em Sistemas de Potência Multimáquina por Métodos de Resposta em Frequência. In: IV CONGRESSO BRASILEIRO DE AUTOMÁTICA, 1982, Campinas. Proceedings of IV Congresso Brasileiro de Automática. 1982.

212. MARTINS, Nelson; OLIVEIRA, S E M de. Programa de Estabilidade Transitória Usando Técnicas Modernas de Solução. In: VI SNPTEE, 1981, Camboriú. Proceedings of VI SNPTEE. 1981.

213. MARTINS, Nelson; SZECHTMAN, M; PING, Wo Wei. Interaction Between HVDC Controls and Reactive Power Compensators in High Impedance AC Systems. In: CIGRE SC-14 MEETING, 1981, Rio de Janeiro. Proceedings of Cigre SC-14 Meeting. 1981.

214. MARTINS, Nelson. Determinação dos Limites de Estabilidade Dinâmica de Sistemas Multimáquinas Contendo Cargas Não-Lineares e Compensadores Estáticos. In: VI SNPTEE, 1981, Camburiú. Proceedings of VI SNPTEE. 1981.