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.

VARRICCHIO, Sérgio Luis; GOMES Jr., Sergio, MARTINS, Nelson; Modal Analysis of Industrial System Harmonics Using the s-Domain Approach IEEE Transactions on Power Delivery, USA, v. 19, No. 3, p. 1232-1237, July 2004. Download from IEEE Xplore.

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)

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. Download. Slides Presentation.

VARRICCHIO, Sérgio Luis; MARTINS, Nelson; LIMA, Leonardo Tadeu Garcia. A Newton-Raphson Method Based on Eigenvalue Sensitivities to Improve Harmonic Voltage PerformanceIEEE Transactions on Power Delivery, USA, v. 18, n. PE-021PRD, p. 334-342, 2003. Download from IEEE Xplore.

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. Download from IEEE Xplore. Slides Presentation.

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. Download. Slides Presentation.

VARRICCHIO, Sérgio Luis; MARTINS, Nelson; GOMES JR, Sérgio. s-Domain Approach to Reduce Harmonic Voltage Distortions Using Sensitivity Analysis. In: POWER ENGINEERING SOCIETY SUMMER MEETING, 2001, Vancouver. Proceedings of Power Engineering Society Summer Meeting. 2001. v. 2, p. 809-814. Download from IEEE Xplore.

VARRICCHIO, Sérgio Luis; MARTINS, Nelson. Filter Design Using a Newton-Raphson Method Based on Eigenvalue Sensitivity. In: POWER ENGINEERING SOCIETY SUMMER MEETING, 2000, Seattle, Washington, USA. Proceedings of Power Engineering Society Summer Meeting. 2000. v. 2, p. 861-866. Download from IEEE Xplore.

VARRICCHIO, Sérgio Luis; MARTINS, Nelson. Applying Sensitivity Analysis to Improve Harmonic Voltage Performance. In: VII SEPOPE, 2000, Curitiba. Proceedings of VII SEPOPE. 2000. Download.

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. Download. Slides Presentation.

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.