Stand Alone Performance of Permanent Magnet Synchronous Wind Power Generator with Current Source Matrix Converter

Abstract

Abstract—A matrix converter is a voltage/current source AC/AC frequency converter. In grid-connected operation of a variable-speed permanent magnet synchronous wind power generator, the matrix converter is normally controlled as a voltage source converter. In this control method, the generator-side voltage is synthesized from the grid-side voltage source. However, in the stand-alone mode of operation, the grid-side stiff voltage source is not available, and the input filter of the matrix converter is unstable. In this article, a new control method is presented that controls a permanent magnet synchronous wind generator in a stand-alone mode with a matrix converter as a current source converter. The proposed method is so fast that it can control the matrix converter small capacitor voltage despite the generator large inductance and without any input filter instability. A multi-pole permanent magnet synchronous wind generator is simulated to prove the performance of the proposed control strategy.

Keywords:

• wind generator
• permanent magnet synchronous generator
• stand-alone
• matrix converter
• current source
• singular value decomposition modulation

Additional information

Notes on contributors

Hossein Hojabri

Hossein Hojabri was born in Kerman, Iran, in 1982. He received his B.Sc. from Isfahan University of Technology, Isfahan, Iran, in 2004 and his M.Sc. and Ph.D. from Sharif University of Technology, Tehran, Iran, in 2006 and 2013, respectively, in electrical engineering. He is currently an assistant professor in the Department of Electrical Engineering, Shahid Bahonar University, Kerman, Iran. His research interests include application of power electronics in power systems, microgrids, power quality, and renewable energy systems.

Hossein Mokhtari

Hossein Mokhtari was born in Tehran, Iran, in 1966. He received his B.Sc. in electrical engineering from Tehran University, Tehran, Iran, in 1989. From 1989–1992, he worked in the Consulting Division of Power Systems Dispatching Projects for the Electric Power Research Center Institute. He obtained his M.Sc. in power electronics from University of New Brunswick, Fredericton, NB, Canada, in 1994 and his Ph.D. in power electronics/power quality from University of Toronto, Toronto, ON, Canada, in 1999. Since 2000, he has been with the Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran. He is currently a professor in this department. He is also a senior consultant to several utilities and industries. His research interests include power quality, power electronics and its application in power distribution systems, microgrids, electric traction systems, and smart grids.

Liuchen Chang

Liuchen Chang received his B.S.E.E. from Northern Jiaotong University, Beijing, in 1982; his M.Sc. from the China Academy of Railway Sciences, Beijing, in 1984; and his Ph.D. from Queen’s University, Canada, in 1991. He is a professor at the University of New Brunswick. He is a fellow of Canadian Academy of Engineering. His research interests and experience include distributed generation, renewable energy conversion, direct load controls, and power electronic converters.