Hybrid Filters To Damp Harmonic Resonance In Power Transmission Systems

Lucas F. Encarnação; Alexandre G. Merçon; Hélio H. de Almeida; Emanuel L. van Emmerik; Maurício Aredes

doi:10.18618/REP.2006.1.025032

Authors

Lucas F. Encarnação Power Electronics Laboratory, Electrical Engineering Program, COPPE/Federal University of Rio de Janeiro, Brazil
Alexandre G. Merçon Power Electronics Laboratory, Electrical Engineering Program, COPPE/Federal University of Rio de Janeiro, Brazil
Hélio H. de Almeida Furnas Centrais Elétricas S.A., Brazil
Emanuel L. van Emmerik Dept. of Electrical Engineering, Technical University Delft, The Netherlands
Maurício Aredes Power Electronics Laboratory, Electrical Engineering Program, COPPE/Federal University of Rio de Janeiro, Brazil

DOI:

https://doi.org/10.18618/REP.2006.1.025032

Keywords:

Harmonic resonance, HVDC, hybrid filters, power converters, Power quality, power transmission systems

Abstract

Problems related to harmonic propagation in transmission systems have been noticed in the last years. Passive filters, commonly used to attenuate noncharacteristic harmonics in HVDC systems, stay at risk of disconnection from the system due to overcurrents. One of the possible solutions to solve the problem of high harmonic levels would be the use of pure active filters. However, this alternative may be very expensive due to the high power of the transmission systems. This paper relates to a comparative study on two different topologies of hybrid filters to damp harmonic resonance in power transmission systems. The first one combines a smallrated active filter in series with passive filters, limiting overcurrents, when existent, or improving the quality factor of the filter when the passive filters work under its nominal current. The second one consists of an active filter in parallel with passive filters, compensating all eventual overcurrent in these. Simulation results with the two proposed topologies present the efficiency of, and the differences between, the hybrid filters in power transmission systems.

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Author Biographies

Lucas F. Encarnação, Power Electronics Laboratory, Electrical Engineering Program, COPPE/Federal University of Rio de Janeiro, Brazil

was born in Vitória, Espírito Santo State, Brazil, on December 27, 1979, and received the B.Sc. degree in electrical engineering from The Federal University of Espírito Santo in 2003. In 2004 he joined the Power Electronic Laboratory group at COPPE/Federal University of Rio de Janeiro as a M.Sc. student. His research area includes active filters, static compensators and power quality.

Alexandre G. Merçon, Power Electronics Laboratory, Electrical Engineering Program, COPPE/Federal University of Rio de Janeiro, Brazil

was born in Vitória, Espírito Santo State, Brazil, on November 14, 1978, and received the B.Sc. degree in electrical engineering from The Federal University of Espírito Santo in 2003. Since 2004, he is engaged in research projects in the Power Electronics Laboratory at COPPE/Federal University of Rio de Janeiro, where he is currently working towards the M.Sc. degree in power electronics. His research interests include active filters, power converters, FACTS devices and power quality.

Hélio H. de Almeida, Furnas Centrais Elétricas S.A., Brazil

was born in Curitiba, Paraná State, Brazil, on October 14, 1970, and received the B.Sc. degree in Electronic Engineering from the Federal University of Rio de Janeiro in 1993. Since 1994 he worked in Furnas Centrais Elétricas S.A. in the Special Studies Division. His work includes real time simulations tests and FACTS devices (HVDC, SVC, TCSC).

Emanuel L. van Emmerik, Dept. of Electrical Engineering, Technical University Delft, The Netherlands

was born in The Hague, ZuidHolland, The Netherlands, on October 25, 1968, and received the M.Sc. degree (hons.) in electrical engineering from The Technical University of Delft in 1991, where continued as a Ph.D. student. From 1999 to 2001 he worked for Ned Train Consulting as an R&D consultant. In 2002 he became a R&D engineer in the Power Electronics Laboratory at COPPE/Federal University of Rio de Janeiro, where he is working nowadays. His main research area includes FACTS systems, electrical energy distribution and transmission, electrical motors and its control.

Maurício Aredes, Power Electronics Laboratory, Electrical Engineering Program, COPPE/Federal University of Rio de Janeiro, Brazil

was born in the São Paulo State, Brazil, on August 14, 1961, receiving the B.Sc. degree from the Fluminense Federal University in 1984, the M.Sc. degree from the Federal University of Rio de Janeiro in 1991, and the Dr.-Ing. degree (hons.) from Technische Universität Berlin, Germany, in 1996, all in electrical engineering. From 1985 to 1997 he worked in some major projects and within CEPEL (Centro de Pesquisas de Energia Elétrica), Rio de Janeiro, as R&D Engineer. In 1997, he became an Associate Professor at the Federal University of Rio de Janeiro, where he teaches power electronics. His main research area includes HVDC and FACTS systems, active filters, custom power and power quality issues. Dr. Aredes is a member of the Brazilian Power Electronics Society, the Brazilian Society for Automation Control, as well as IEEE.

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