Generated Voltage Control In A Switched Reluctance Motor/generator

Augusto Wohlgemuth Fleury Veloso da Silveira; Darizon Alves de Andrade; Augusto Fleury Veloso da Silveira; Luciano Coutinho Gomes; Carlos Augusto Bissochi Jr.; Hélder  de Paula

doi:10.18618/REP.2010.3.203212

Authors

Augusto Wohlgemuth Fleury Veloso da Silveira Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil
Darizon Alves de Andrade Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil
Augusto Fleury Veloso da Silveira Pontifícia Universidade Católica de Goiás / Universidade Estadual de Goiás
Luciano Coutinho Gomes Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil
Carlos Augusto Bissochi Jr. Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil
Hélder de Paula Universidade Federal de Minas Gerais

DOI:

https://doi.org/10.18618/REP.2010.3.203212

Keywords:

Digital control, Generator Load Voltage Control, SRM, Switched Reluctance Motor/Generator

Abstract

This paper reports on the switched reluctance machine operating as motor/generator (SRM/G) excited through an external power source. The half-bridge static converter topology is used to drive the machine in either modes of operation. Transition from motor to generator mode is firstly discussed and results from both simulation and experimental tests are included. Operating as generator, the output generated voltage is a function of the phase magnetization level during excitation; therefore, by controlling the phase excitation level, the output voltage is also controlled. Three output voltage control techniques are proposed and analyzed: 1- Variable Angle (VA), effected by controlling the phases turning off angles with a fixed DC link excitation voltage; 2 - Chopping (CH), attained by chopping the DC link supply during the phases magnetization while keeping a fixed conduction period; and 3 – Variable Link (VL), reached by controlling the DC link excitation voltage by means of a DC-DC buck converter in a fixed conduction period. For the experimental work, full digital control is implemented. Results obtained with the implementation of the output voltage control techniques are presented. Relative performance comparison is included, showing that the CH followed by VL strategy brings the best outcome.

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Author Biographies

Augusto Wohlgemuth Fleury Veloso da Silveira, Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil

was born in Goiânia – Brazil, on August 27, 1981. He received the B. Sc. degree in computing engineering from Pontifícia Universidade Católica de Goiás (PUC-GO) and received his M. Sc. degree in electrical engineering from Universidade Federal de Uberlândia (UFU). He is currently working towards the Doctorate degree in electrical engineering at UFU. Presently he is a professor of the Department of Electrical Engineering of UFU, Brazil. His main areas of interest are electrical machines and drives.

Darizon Alves de Andrade, Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil

was born in Monte Alegre de Minas – Brazil, on June 23, 1956. He received the B. Sc. and M. Sc. degrees from Universidade Federal de Uberlândia (UFU), Uberlândia, Brazil, and the Ph. D. degree from the University of Leeds, Leeds, U.K., in 1980, 1987, and 1994, respectively, all in electrical engineering. During the year 2000, he was a Visiting Scholar with the Motion Control Group, VTEC, Blacksburg, VA, USA, where he carried out research on new strategies for modeling SRMs. His teaching, research, and consulting interests are related to design, simulation, and control techniques associated with motion control of electromechanical energy converter devices and new developments in power quality. He has authored and coauthored several papers in these areas.

Augusto Fleury Veloso da Silveira, Pontifícia Universidade Católica de Goiás / Universidade Estadual de Goiás

was born in Goiânia – Brazil, on August 30, 1953. He received the BSc. degree in physics and in electrical engineering both from the Universidade Federal de Goiás, Goiânia, Brazil, both in 1977. He also received the MSc degree in physics from the Universidade Federal de Goias, in 2001, and the Doctorate degree in electrical engineering from the Universidade Federal de Uberlândia, Brazil, in 2008. Nowadays he is going on ahead with researches on Switched Reluctance Machines. From 1978 to 1985, he was a Lecturer with the Pontifícia Universidade Católica de Goiás (PUC-GO). After this he was a Senior Consultant Engineer with the Engevix Engenharia S/C Ltda and later as a Senior Engineer with the Centrais Elétricas do Norte do Brasil S/A – Eletronorte. Presently he is with the Universidade Estadual de Goiás (UEG) and again with the PUC-GO, in both as a Senior Lecturer. His teaching, research, and consulting interests and activities are related to design, simulation, and control techniques associated with electrical machines and drives, and with alternative power sources. He has authored and coauthored papers published in these areas.

Luciano Coutinho Gomes, Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil

was born in Barreira do Campo – Brazil, on October 20, 1972. He received the B. Sc,. M. Sc. and D. Sc. degrees from the Universidade Federal de Uberlândia (UFU), Uberlândia, Brazil, in 1995, 2002, and 2008, respectively, all in electrical engineering. In 2008, he joined the Faculdade de Engenharia Elétrica, UFU, where he is currently a Assistant Lecturer. His teaching, research, and consulting interests and activities are related to simulation and digital control techniques associated with motion control of electromechanical energy converter devices. He has authored and coauthored some papers in these areas.

Carlos Augusto Bissochi Jr., Laboratório de Acionamentos Elétricos da Universidade Federal de Uberlândia Uberlândia – MG, Brasil

received his B. Sc. degree in Electrical Engineering in 1994, from Universidade Estadual Paulista Júlio de Mesquisa Filho (UNESP). In 1997 and 2003, respectively, he received his M. Sc. and Ph. D. degrees, from Universidade Federal de Uberlândia (UFU). Presently, he is a professor of the Electrical Engineering Department of UFU, being involved with teaching and researching on systems automation, robotics, electric machine drives and control and also power electronics. His scientific and technological production includes AC/AC voltage regulators, switched audio amplifiers, symmetrical switched sources, EIE converters, new topologies, active load with energy recycling and electronic drive of electric machines.

Hélder de Paula, Universidade Federal de Minas Gerais

was born in Uberlândia – Brazil, on December 27, 1975. He received his B. Sc., M. Sc. and Ph. D. degrees in Electrial Engineering from Universidade Federal de Uberlândia, Brazil, in 1998, 2001 and 2005, respectively. In 2006, he joined the Electrical Engineering Department of Universidade Federal de Minas Gerais (UFMG), as a professor and member of the Industry Applications Laboratory. His main interests are motor drives, conducted electromagnetic compatibility, power quality and electromagnetic transients.

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