Publications

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This includes journal articles, conference papers, tutorials and talks. Material holding IEEE copyright are linked through IEEE Xplore. Most recent work is available in the form of preprints or presentation slides, in Recent Highlights.

 
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All, AC Power Flow with Controls, Eigenvalue Methods, Electromagnetic Transients, HVDC link and FACTS controls, Modal Analysis of Power Systems, NLA – Numerical Linear Algebra, Power Blackouts and System Restoration, Power System Dynamic Performance, Power System Harmonics, Small-Signal Stability Analysis and Control, Power System Harmonics, Voltage Stability and Control

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. Download from IEEE Xplore.

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. Download from IEEE Xplore.

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. Download from IEEE Xplore.

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. Download from IEEE Xplore.

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.

GOMES Jr., Sergio, Martins, Nelson, VARRICCHIO, Sergio L., PORTELA, Carlos. Modal Analysis of Electromagnetic Transients in ac Networks having Long Transmission LinesIEEE Proceedings of the Transmission and Distribution, March 18-22, 2002, São Paulo, SP, Brazil. Slides Presentation.

GOMES Jr, S.; PORTELA, C.; MARTINS, N., Detailed Model of Long Transmission Lines for Modal Analysis of ac Networks. Proc. International Conference on Power System Transients, Rio de Janeiro, Brazil, June 2001. Download.

GIBBARD, Mike J; MARTINS, Nelson; SANCHEZGASCA, J J; UCHIDA, N; VITTAL, Vijay; WANG, Lei. Recent Applications of Linear Analysis Techniques. IEEE Transactions on Power Systems, USA, v. 16, n. 1, p. 154-162, 2001. Download from IEEE Xplore.

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. Slides Presentation.

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.

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.