A Three-Phase Rectifier for Wecs With Indirect Current Control

Carlos E. A. Silva; Demercil S. Oliveira Jr.; Herminio M. de Oliveira Filho; Luiz H. S. C. Barreto; Fernando L. M. Antunes

doi:10.18618/REP.2011.1.028036

Authors

Carlos E. A. Silva Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil
Demercil S. Oliveira Jr. Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil
Herminio M. de Oliveira Filho Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil
Luiz H. S. C. Barreto Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil
Fernando L. M. Antunes Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil

DOI:

https://doi.org/10.18618/REP.2011.1.028036

Keywords:

grid-connected system, Indirect current control, one cycle control, Power Factor Correction, selfcontrol, three-phase bridgeless rectifier, wind energy systems

Abstract

This paper presents a novel Wind Energy Conversion System (WECS) capable of processing the energy from a Permanent Magnetic Synchronous Generator (PMSG) coupled to a three-blade wind turbine and injecting it into the utility power grid. This WECS is composed by two stages: a three-phase rectifier and a single-phase inverter. The ac-dc stage consists of three single-phase bridgeless rectifiers processing the power of each phase of the PMSG separately. The dc-ac stage is composed of a full-bridge inverter with controlled output current. Besides, indirect current control for High Power Factor (HPF) operation is employed, allowing the unification of two important techniques currently available, that are one cycle control (OCC) and selfcontrol (SC). Additionally, a third technique, that comprises the optimum characteristics of both OCC and SC, is proposed and applied to the rectifier stage of the proposed WECS. The proposed WECS and control technique are both validated by experimental results from a 5kW prototype.

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Author Biographies

Carlos E. A. Silva, Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil

was born in Fortaleza, Ceará, Brazil, in 1981. He received B. Sc. and M. Sc. degrees in Electrical Engineering from Federal University of Ceará, Fortaleza, Brazil, on 2004 and 2007, respectively. Currently, he is an Assistant Professor with the Department of Computer Engineering in the Federal University of Ceará, Sobral, Brazil. His interest areas include ac-dc conversion with high power factor, dc-ac conversion and renewable energy applications.

Demercil S. Oliveira Jr., Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil

was born in Santos, São Paulo, Brazil, in 1974. He received the BSc and MSc degrees in electrical engineering from the Federal University of Uberlândia, Brazil, in 1999 and 2001, respectively, and the Dr. degree from the Federal University of Santa Catarina, Brazil, in 2004. Currently, he is a researcher in the Group of Power Processing and Control in the Federal University of Ceará. His interest areas include DC/DC conversion, soft commutation and renewable energy applications. Dr. Demercil is a member of the SOBRAEP.

Herminio M. de Oliveira Filho, Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil

was born in Taguatinga, Distrito Federal, Brazil, on 1983. He received the B. Sc. degree in Electrical Engineering from the Federal University of Ceará, Brazil, in 2007. Currently, he is researcher engineer and M. Sc. student in the Group of Energy Processing and Control in the Federal University of Ceará. His interest areas include control applications in power electronics, dc-dc conversion, and renewable energy applications. Since 2008, B. Sc. Herminio is a SOBRAEP member.

Luiz H. S. C. Barreto, Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil

was born in Navirai, MS, Brazil. He received the B.S. degree in electrical engineering from the Federal University of Mato Grosso, Cuiabá, Brazil, in 1997, and the M.S. and Ph.D. degrees from the Federal University of Uberlandia, Uberlandia, Brazil, in 1999 and 2003, respectively. Since June 2003, he has been with the Department of Electrical Engineering, Federal University of Ceara, Fortaleza, Brazil, where he is currently a Professor with the Department of Electrical Engineering. His research interests include high-frequency power conversion, modeling and control of converters, power factor correction circuits, new converter topologies, uninterruptible power system systems, and fuel cells.

Fernando L. M. Antunes, Power Processing and Energy Group (GPEC), Federal University of Ceará (UFC) CEP 60.455-760, C.P. 6001, Fortaleza – CE, Brazil

he received the B.Sc. degree in Electrical Engineering from Federal University of Ceará-Brazil in 1978, and the B.Sc. degree in Business and Administration from the State University of Ceará-Brazil in 1983. In 1980 he received the MSc degree from the University of São Paulo (Brazil), and in 1991 the PhD degree from Loughborough University of Technology – United Kingdom which research project was in the field of power electronics and machine drives. He is a senior lecturer at Federal University of Ceará (Brazil) where coordinates the power electronics group. His research fields include multilevel converters, inverters and their application to renewable energy. He is member of PELS-IEEE and of the Brazilian Power Electronics Society – SOBRAEP.

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