A New Technique to Supply Fast Varying Reactive Power Using a STATCOM

Tatiana Mariano Lessa de Assis; Edson Hirokazu Watanabe; Luiz Alberto da Silva Pilotto; Raul Balbi Sollero

doi:10.18618/REP.2005.2.033040

Authors

Tatiana Mariano Lessa de Assis COPPE/UFRJ P.O. Box 68504 21945-970 Rio de Janeiro, Brazil
Edson Hirokazu Watanabe COPPE/UFRJ P.O. Box 68504 21945-970 Rio de Janeiro, Brazil
Luiz Alberto da Silva Pilotto Andrade & Canellas Alexandre Dumas, 2.100, 7º andar 04717-004 São Paulo, Brazil
Raul Balbi Sollero CEPEL P.O. Box 68007 21944-970 Rio de Janeiro, Brazil

DOI:

https://doi.org/10.18618/REP.2005.2.033040

Keywords:

Reactive Power Control, Shunt Compensation, STATCOM

Abstract

This paper proposes a new technique to compensate fast oscillating reactive power using a multipulse STATCOM. It is shown that the oscillating reactive
power can be controlled in a simple way by maintaining the STATCOM dc voltage constant. A simplified analytical analysis was performed in a power system with an arc furnace and a 12-pulse STATCOM. The study has shown that the STATCOM can compensate the furnace reactive current, even when fast oscillations occur. The system studied was implemented in a detailed EMTP/ATP simulation program. The results show that the reactive power oscillations produced by the furnace can be strongly reduced. However, due to the fact that arc furnace is an unbalanced load, STATCOM dc side capacitor has to be designed to supply the corresponding oscillating energy.

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Author Biographies

Tatiana Mariano Lessa de Assis, COPPE/UFRJ P.O. Box 68504 21945-970 Rio de Janeiro, Brazil

was born in Rio de Janeiro State, Brazil, on May 26, 1975. She received the B.Sc. degree from Fluminense Federal University, Rio de Janeiro State, in 1999 and the M.Sc. degree in Electrical Engineering from Federal University of Rio de Janeiro in 2000. Her main fields of interests are power systems analysis, FACTS applications and power quality. During 04 years, she worked at CEPEL (The Brazilian Electric Power Research Center), in power quality analysis. Between 2001 and 2003, she worked at ONS (The Brazilian ISO) in power systems analysis. Nowadays, she is a D.Sc. student at COPPE/Federal University of Rio de Janeiro and works with the power systems studies group. Ms. Assis is a student member of IEEE.

Edson Hirokazu Watanabe, COPPE/UFRJ P.O. Box 68504 21945-970 Rio de Janeiro, Brazil

was born in Rio de Janeiro State, Brazil, on November 07, 1952. He received the B.Sc. in Electronic Engineering and M.Sc. in Electrical Engineering in 1975 and 1976, respectively, from the Federal University of Rio de Janeiro. In 1981 he got the D.Eng. degree from Tokyo Institute of Technology, Japan. His main fields of interests are converters analysis, modeling and design, active filters and FACTS technologies. In 1981 he became an Associate Professor and in 1993 a Professor at COPPE/Federal University of Rio de Janeiro, where he teaches Power Electronics. Dr. Watanabe is a member of the IAS, PES and PELS Societies of IEEE, the IEE-Japan, The Brazilian Society for Automatic Control, The Brazilian Power Electronics Society and CIGRE-Brazil.

Luiz Alberto da Silva Pilotto, Andrade & Canellas Alexandre Dumas, 2.100, 7º andar 04717-004 São Paulo, Brazil

was born in Rio de Janeiro, Brazil, on June 20, 1959. He received the B.Sc., M.Sc. and D.Sc. degrees in electrical engineering, in 1981, 1983 and 1994, respectively, from the Federal University of Rio de Janeiro. He research interests are in the analysis of HVdc transmission systems, FACTS devices, Power Electronic controllers, SCADA/EMS systems and Energy Market Structures. Since 1983 he has been working at CEPEL, the Brazilian Electrical Energy Research Center. During three years he was a Program Manager responsible for Supervision, Control and Protection of Power Systems. He is currently R&D Di[1]rector. During 1984 he expended 6 months at ABB Switzer[1]land working with the application of static phase-shifters to damp out SSR oscillations and state space modeling of ac/dc systems. He was invited again by the same company in 1988 and developed EMTP HVdc control models to simulate the Pacific Intertie Expansion system. On the last twelve years, he has been involved in the analysis of control interactions among multiple HVdc converter station and FACTS devices operating at the same electrical area. Dr. Pilotto became a Member of the Institute of Electrical and Electronics Engineers (IEEE) in 1987. He is currently a Senior Member of the IEEE Power Engineering, Control Systems and Power Electronics Societies. He also participates in Cigré SC-14, 38 & 39. Dr. Pilotto is Past Secretary, Treasurer, Vice-Chairman and Chairman of IEEE Rio de Janeiro Section. He is currently Chairman of the IEEE PES Rio de Janeiro Chapter.

Raul Balbi Sollero, CEPEL P.O. Box 68007 21944-970 Rio de Janeiro, Brazil

received the B.Sc. in Electrical Engineering from the Federal University of Minas Gerais, Brazil and the M.Sc. degree in Electrical Engineering from the Federal University of Rio de Janeiro – COPPE. He joined CEPEL – Electric Power Research Center in 1982, where, since 2000, he is the manager of the area of Supervision, Control and Protection of Power Systems. His main fields of interest include power system protection and stability, signal processing and equipment modeling for transient studies. Mr. Sollero is a member of IEEE and integrates the Technical Committee of the International Conference on Digital Power System Simulators.

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