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Journal of Zhejiang University SCIENCE A
ISSN 1673-565X(Print), 1862-1775(Online), Monthly
2009 Vol.10 No.10 P.1532-1540
Proportional integral plus multi-frequency resonant current controller for grid-connected voltage source converter under imbalanced and distorted supply voltage conditions
Abstract: This paper proposes a current control scheme for a grid-connected pulse width modulator (PWM) voltage source converter (GC-VSC) under imbalanced and distorted supply voltage conditions. The control scheme is implemented in the positive synchronously rotating reference frame and composed of a single proportional integral (PI) regulator and multi-frequency resonant controllers tuned at the frequencies of 2ω and 6ω, respectively. The experimental results, with the target of eliminating the active power oscillations and current harmonics on a prototype GC-VSC system, validate the feasibility of the proposed current control scheme during supply voltage imbalance and distortion.
Key words: Grid-connected voltage source converter (GC-VSC), Proportional integral plus multi-frequency resonant (PI+MFR), Imbalance, Harmonics distortion
References:
Open peer comments: Debate/Discuss/Question/Opinion
<1>
zhaizy<jzus_zzy@zju.edu.cn>
2010-01-29 10:40:35
Reviewer's comment: this paper presents some interesting work on the control of PWM voltage source converter, particularly under unbalanced and distorted supply voltage conditions. The first author Jia-bing Hu is an active young scholar in this field. Welcome readers and peers' attention and comments. -- editor
DOI:
10.1631/jzus.A0820440
CLC number:
TM315; TM614
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Received:
2008-06-12
Revision Accepted:
2008-12-25
Crosschecked:
2009-07-30