Resonance Active Damping and PCC Voltage Quality Improvement of DFIG System Connected to Parallel Compensated Grid

Chinese Journal of Electrical Engineering ›› 2018, Vol. 4 ›› Issue (4): 33-40.

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Resonance Active Damping and PCC Voltage Quality Improvement of DFIG System Connected to Parallel Compensated Grid

Yipeng Song^1,*, Nian Heng², Frede Blaabjerg¹

1. Department of Energy Technology, Aalborg University, Aalborg East 9220, Denmark;
2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Online:2018-12-25 Published:2019-10-31
Contact: *Email: yis@et.aau.dk.
About author:Yipeng Song was born in Hangzhou, China. He received the B.Sc. degree and Ph.D. degree both from the College of Electrical Engineering, Zhejiang University, Hangzhou, China, in 2010 and 2015. He is currently working as a Postdoc at the Department of Energy Technology in Aalborg University, Denmark. His current research interests are motor control with power electronics devices in renewable-energy conversion, particularly the control and operation of doubly fed induction generators for wind power generation. Heng Nian received the B.Eng. degree and the M.Eng. degree from HeFei University of Technology, China, and the Ph.D. degree from Zhejiang University, China, in 1999, 2002, and 2005 respectively, all in electrical engineering. From 2005 to 2007, he was as a Post-Doctoral with the College of Electrical Engineering, Zhejiang University, China. In 2007, he was promoted as an Associate professor. Since 2016, he has been a Full Professor at the College of Electrical Engineering, Zhejiang University, China. From 2013 to 2014, he was a visiting scholar at the Department of Electrical, Computer, and System Engineering, Rensselaer Polytechnic Institute, Troy, NY. His current research interests include the optimal design and operation control for wind power generation system. He has published more than 20 IEEE/IET Transaction papers and holds more than 20 issued/pending patents. Frede Blaabjerg was with ABB-Scandia, Randers, Denmark, from 1987 to 1988. From 1988 to 1992, he was a Ph.D. Student with Aalborg University, Aalborg, Denmark. He became an Assistant Professor in 1992, Associate Professor in 1996, and Full Professor of power electronics and drives in 1998. His current research interests include power electronics and its applications such as in wind turbines, PV systems, reliability, harmonics and adjustable speed drives. He has received 17 IEEE Prize Paper Awards, the IEEE PELS Distinguished Service Award in 2009, the EPE-PEMC Council Award in 2010, the IEEE William E. Newell Power Electronics Award 2014 and the Villum Kann Rasmussen Research Award 2014. He was an Editor-in-Chief of the IEEE TRANSACTIONS ON POWER ELECTRONICS from 2006 to 2012. He is nominated in 2014 and 2015 by Thomson Reuters to be between the most 250 cited researchers in Engineering in the world.

Abstract

Abstract: Under the connection to a weak grid, the Doubly Fed Induction Generator(DFIG) based wind power system has potential risk from two operational issues. The first issue is the High Frequency Resonance(HFR) mode due to the impedance interaction between the DFIG system and the weak grid. In order to ensure safe and reliable operation of the DFIG system, it is necessary to implement effective active damping strategies to mitigate the HFR. The second issue is low order voltage harmonic distortion at the Point of Common Coupling(PCC), where consequently the performance of other grid-connected devices may deteriorate. It could be advantageous that the DFIG system is able to improve the voltage quality at PCC by eliminating the low order harmonic components. In this paper, both of the above mentioned DFIG operational characters, i.e., active damping of HFR and the improvement of voltage quality at PCC, will be achieved by implementing advanced control strategies in the Rotor Side Converter(RSC) and the Grid Side Converter(GSC) respectively. Simulations are provided to verify the proposed control strategies for DFIG system connected to a weak grid.

Key words: DFIG system, weak grid, High Frequency Resonance(HFR), harmonic distortion, active damping

Yipeng Song, Nian Heng, Frede Blaabjerg. Resonance Active Damping and PCC Voltage Quality Improvement of DFIG System Connected to Parallel Compensated Grid[J]. Chinese Journal of Electrical Engineering, 2018, 4(4): 33-40.

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Resonance Active Damping and PCC Voltage Quality Improvement of DFIG System Connected to Parallel Compensated Grid

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