| A Newton-Raphson method based on eigenvalue sensitivities to improve harmonic voltage performance SL Varricchio, N Martins, LTG Lima IEEE Transactions on Power Delivery 18 (1), 334-342, 2003 | 55 | 2003 |
| Reduced-order transfer matrices from RLC network descriptor models of electric power grids FD Freitas, N Martins, SL Varricchio, J Rommes, FC Véliz IEEE transactions on power systems 26 (4), 1905-1916, 2011 | 44 | 2011 |
| Modal Analysis of Electromagnetic Transients in ac Networks having Long Transmission Lines S Gomes Jr., N Martins, SL Varricchio, C Portela IEEE Transactions on Power Delivery, Vol. 20, No. 4, October 2005, 2623-2630, 2005 | 36 | 2005 |
| Computation of Dominant Poles and Residue Matrices for Multivariable Transfer Functions of Infinite Power System Models SL Varricchio, FD Freitas, N Martins, FC Veliz IEEE Transactions on Power Systems 30 (No. 3), 1131-1142, 2015 | 31 | 2015 |
| Modal Analysis of Industrial System Harmonics Using the S-Domain Approach SL Varricchio, S Gomes Jr., N Martins IEEE Transactions on Power Delivery, Vol. 19, No. 3, July 2004, 1232-1237, 2004 | 30 | 2004 |
| Electrical network dynamic models with application to modal analysis of harmonics SL Varricchio, S Gomes Jr Electric Power Systems Research 154, 433-443, 2018 | 26 | 2018 |
| Studying harmonic problems using a descriptor system approach SL Varricchio, N Martins, LTG Lima, S Carneiro Jr, RP da Pátria Proceedings of the IPST, 1999 | 23 | 1999 |
| S-domain approach to reduce harmonic voltage distortions using sensitivity analysis SL Varricchio, S Gomes, N Martins 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings …, 2001 | 22 | 2001 |
| Three Winding Transformer s-Domain Model for Modal Analysis of Electrical Networks SL Varricchio, S Gomes Jr, R Diniz Rangel International Journal of Electrical Power & Energy Systems 33 (3), 420-429, 2011 | 21 | 2011 |
| Filter design using a Newton-Raphson method based on eigenvalue sensitivity SL Varricchio, N Martins 2000 Power Engineering Society Summer Meeting (Cat. No. 00CH37134) 2, 861-866, 2000 | 15 | 2000 |
| Advanced tool for harmonic analysis of power systems SL Varricchio, S Gomes Jr, N Martins, LR Araújo, FC Véliz, CO Costa Proceedings of the IX SEPOPE, 2004 | 14 | 2004 |
| Modelagem e análise de redes elétricas e métodos de redução da ordem de modelos dinâmicos de baixa e alta frequência SL Varricchio | 12 | 2016 |
| Hybrid modal‐balanced truncation method based on power system transfer function energy concepts SL Varricchio, FD Freitas, N Martins IET Generation, Transmission & Distribution 9 (11), 1186-1194, 2015 | 12 | 2015 |
| Metodologia para a Representação de Redes Elétricas por Polígonos de Admitâncias para Estudos de Impacto Harmônico FC Véliz, SL Varricchio, CO Costa Eletroevolução 79, 2015 | 10 | 2015 |
| Metodologia para a Representação de Redes Elétricas por Polígonos de Admitâncias para Estudos de Impacto Harmônico FC Veliz, SL Varricchio, C de Oliveira Costa XXII SNPTEE - Seminário Nacional de Produção e Transmissão de Energia …, 2013 | 10 | 2013 |
| Manual do Usuário da Versão 1.7 do Programa HarmZs C de Oliveira Costa, SL Varricchio, FC Véliz Relatório Técnico CEPEL, No. DSE 51747, 2007 | 9 | 2007 |
| Dynamic equivalents for large ac networks using modal analysis for s-domain models FC Véliz, S Gomes, SL Varricchio, S Carneiro IEEE Power Engineering Society General Meeting, 2005, 132-138, 2005 | 9 | 2005 |
| Applying sensitivity analysis to improve harmonic voltage performance SL Varricchio, N Martins Proc. SEPOPE, 2000 | 9 | 2000 |
| Equivalência entre as Modelagens do PacDyn e HarmZs para Análise de Ressonância Subsíncrona, Ressonâncias de Redes e Harmônicos S Gomes Jr, SL Varricchio, PEM Quintão, N Martins, CO Costa IX Symposium of Specialists in Electric Operational and Expansion Planning …, 2006 | 8 | 2006 |
| Results on modal analysis to speed-up electromagnetic transient simulations S Gomes, SL Varricchio, N Martins, C Portela IEEE Power Engineering Society General Meeting, 2005, 1132-1139, 2005 | 8 | 2005 |
Nelson MartinsResearch Consultant, Power SystemsVerified email at ieee.org
