Compensation Algorithms Based On The P-q And Cpc Theories For Switching Compensators In Micro-grids

Authors

  • L. F. C. Monteiro COPPE - Electrical Engineering Program, Federal University of Rio de Janeiro, PO Box 68504, Rio de Janeiro, Brazil
  • J. L. Afonso DEI - Industrial Electronics Department, University of Minho, Campus de Azurém - 4800-058, Guimarães, Portugal
  • J. G. Pinto DEI - Industrial Electronics Department, University of Minho, Campus de Azurém - 4800-058, Guimarães, Portugal
  • E. H. Watanabe COPPE - Electrical Engineering Program, Federal University of Rio de Janeiro, PO Box 68504, Rio de Janeiro, Brazil
  • M. Aredes COPPE - Electrical Engineering Program, Federal University of Rio de Janeiro, PO Box 68504, Rio de Janeiro, Brazil
  • H. Akagi Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan

DOI:

https://doi.org/10.18618/REP.2009.4.259268

Keywords:

Current’s Physical Components Theory CPC Theory, Micro-grids, p-q Theory, Power quality, Switching Compensators

Abstract

The main objective of this paper is to compare the applicability and performance of a switching compensa-tor when it is controlled by algorithms derived from the pq–Theory and from the Current’s Physical Components Power Theory (CPC-Theory) considering a micro-grid application. Compensation characteristics derived from each one of these set of power definitions are highlighted, and simulation results of test cases are shown. Special attention is put on the oscillating instantaneous real power, as it may produce torque oscillations or frequency variations in weak systems (micro-grids) generators. The oscillating instantaneous real power, as defined in the pq-Theory, gives the amount of energy oscillating between the source and the load, and its compensation using a switching compensator must have an energy storage element to exchange it with the load. The energy storage element can be easily calculated with the pq-Theory.

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Author Biographies

L. F. C. Monteiro, COPPE - Electrical Engineering Program, Federal University of Rio de Janeiro, PO Box 68504, Rio de Janeiro, Brazil

was born in Rio de Janeiro, Brazil, on March 1975. He graduated in Electrical Engineering, from the Federal University of Rio de Janeiro (UFRJ) in 2002. In 2003 and 2008 received from the same university (UFRJ) the M.Sc. and Ph.D degrees, respectively. From 2006 to 2008 have developed researchers on his Ph.D. thesis at University of Minho (Portugal). His current research interests include custom power devices, multilevel converters and real-time control algorithms. Dr. Monteiro is a member of the Institute of Electrical Engineers and of the Brazilian Power Electronics Society.

J. L. Afonso, DEI - Industrial Electronics Department, University of Minho, Campus de Azurém - 4800-058, Guimarães, Portugal

Associate Professor at the Department of Industrial Electronics of the University of Minho, Portugal, where he works since 1993. He finished his Engineering course and his M.Sc. at the Federal University of Rio de Janeiro, Brazil, respectively in 1986 and 1991. He concluded his PhD in Industrial Electronics at the University of Minho in 2000. He lectures the subjects of Electrical Machines, Complements of Power Electronics, Power Quality, Active Power Filters, and Renewable Energy. His researching activities are related with the Development of Active Power Filters, Power Quality Monitoring Systems, Power Electronics for Renewable Energy Sources and for Electric Vehicles, and with the realization of studies on Power Quality and Energy Efficiency. Dr. Afonso is a member of the Portuguese Engineering Council (Ordem dos Engenheiros), and of the IEEE.

J. G. Pinto, DEI - Industrial Electronics Department, University of Minho, Campus de Azurém - 4800-058, Guimarães, Portugal

received the degree in Industrial Electronics Engineering and the M.Sc. degree in Industrial Electronics from the Minho University, Guimarães, Portugal, in 2001 and 2004, respectively. From 2002 to 2006 worked as invited assistant at the Electrical Department of the Polytechnic Institute of Bragança. Since 2006, works as investigator at the Energy and Power Electronics group of the Industrial Electronics Department of the Minho University. Actually he is a PhD scholarship in Industrial Electronics Department of the Minho University.

E. H. Watanabe, COPPE - Electrical Engineering Program, Federal University of Rio de Janeiro, PO Box 68504, Rio de Janeiro, Brazil

was born in Rio de Janeiro, Brazil. He received the B.Sc. degree in electronic engineering and the M.Sc. degree in electrical engineering from the Federal University of Rio de Janeiro, Rio de Janeiro, in 1975 and 1976, respectively, and the Dr. Eng. degree from Tokyo Institute of Technology, Tokyo, Japan, in 1981. In 1981, he became an Associate Professor at COPPE, Federal University of Rio de Janeiro, where he became a Professor in 1993 and currently teaches power electronics. His current research interests include converters analysis, modeling and design, active filters, and flexible ac transmission system (FACTS) technologies. Dr. Watanabe is a member of the Institute of Electrical Engineers, Japan, the Brazilian Society for Automatic Control, and the Brazilian Power Electronics Society.

M. Aredes, COPPE - Electrical Engineering Program, Federal University of Rio de Janeiro, PO Box 68504, Rio de Janeiro, Brazil

was born in 1961. He received the B.Sc. degree from Fluminense Federal University, Rio de Janeiro State, Niterói, Rio de Janeiro, Brazil, in 1984, the M.Sc. degree in electrical engineering from Federal University of Rio de Janeiro, Rio de Janeiro, Brazil, in 1991, and the Dr.-Ing. degree (magma cum laude) from Technische Universität Berlin, Berlin, Germany, in 1996. Currently, he is an Associate Professor with the Federal University of Rio de Janeiro, where he teaches Power Electronics. From 1985 to 1997, he was an R&D Engineer, working on some projects and within Centro de Pesquisas de Energia Elétrica (CEPEL), Rio de Janeiro. His main research area includes HVDC and flexible ac transmission systems (FACTS) systems, active filters, custom power, and power quality issues. Dr. Aredes is a member of the Brazilian Society for Automatic Control and the Brazilian Power Electronics Society.

H. Akagi, Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan

was born in Okayama, Japan, on August 19, 1951. He received the B.S. degree from Nagoya Institute of Technology, Nagoya, Japan, in 1974, and the M.S. and Ph.D. degrees from Tokyo Institute of Technology, Tokyo, Japan, in 1976 and 1979, respectively, all in electrical engineering. During 1979, he was with the Department of Electrical Engineering, Nagaoka University of Technology, as an Assistant and then Associate Professor. During 1987, he was a Visiting Scientist at Massachusetts Institute of Technology (MIT), Cambridge, for ten months. From 1991 to 1999, he was a Professor in the Department of Electrical Engineering, Okayama University, Okayama. From March to August 1996, he was a Visiting Professor at the University of Wisconsin, Madison, and then at MIT. Since January 2000, he has been a Professor in the Department of Electrical and Electronic Engineering, Tokyo Institute of Technology. He has made numerous presentations as a keynote or invited speaker internationally. He has authored or coauthored more than 70 IEEE journals and transactions papers, including two invited papers published in the PROCEEDINGS OF THE IEEE in 2001 and 2004. The total citation index of all his papers is more than 6000 as per Google Scholar. His current research interests include power conversion systems, ac motor drives, active and passive electromagnetic interference filters, high-frequency resonant inverters for induction heating and corona discharge treatment processes, and utility applications of power electronics such as active filters, selfcommutated back-to-back systems, and flexible ac transmission system devices. Dr. Akagi was elected as a Distinguished Lecturer of the IEEE Power Electronics and the IEEE Industry Applications Societies for 1998–1999. He received two IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS Prize Paper Awards in 1991 and 2004, two IEEE TRANSACTIONS ON POWER ELECTRONICS Prize Paper Awards in 1999 and 2003, nine IEEE Industry Applications Society Committee Prize Paper Awards, the IEEE William E. Newell Power Electronics Award in 2001, and the IEEE Industry Applications Society Outstanding Achievement Award in 2004.

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Published

2009-11-30

How to Cite

[1]
L. F. C. Monteiro, J. L. Afonso, J. G. Pinto, E. H. Watanabe, M. Aredes, and H. Akagi, “Compensation Algorithms Based On The P-q And Cpc Theories For Switching Compensators In Micro-grids”, Eletrônica de Potência, vol. 14, no. 4, pp. 259–268, Nov. 2009.

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Vol. 14 No. 4 (2009)

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Original Papers

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Copyright (c) 2009 Revista Eletrônica de Potência

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