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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2007, Vol. 8 Issue (10): 1527-1531    DOI: 10.1631/jzus.2007.A1527
Electrical & Electronic Engineering     
Multi-frequency proportional-resonant (MFPR) current controller for PWM VSC under unbalanced supply conditions
HU Jia-bing, HE Yi-kang
School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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Abstract  This letter presents a multi-frequency proportional-resonant (MFPR) current controller developed for PWM voltage source converter (VSC) under the unbalanced supply voltage conditions. The delta operator is used in place of the shift operator for the implementation of MFPR by using a low-cost fixed-point DSP. The experimental results with an alternative control strategy validated the feasibility of the proposed MFPR current controller for the PWM VSC during voltage unbalance.

Key words： PWM VSC      Multi-frequency proportional-resonant (MFPR)      Voltage unbalance     
Received: 04 July 2007     
CLC:  TM315  
  TM614  
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HU Jia-bing
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Cite this article:

HU Jia-bing, HE Yi-kang. Multi-frequency proportional-resonant (MFPR) current controller for PWM VSC under unbalanced supply conditions. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(10): 1527-1531.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2007.A1527     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2007/V8/I10/1527

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[2] Jia-bing HU, Yi-kang HE, Lie XU. Dynamic modeling and direct power control of wind turbine driven DFIG under unbalanced network voltage conditions[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(12): 1731-1740.
[3] Jia-bing HU, Yi-kang HE, Hong-sheng WANG. Adaptive rotor current control for wind-turbine driven DFIG using resonant controllers in a rotor rotating reference frame[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(2): 149-155.
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[5] HU Jia-bing, HE Yi-kang. Dynamic modelling and robust current control of wind-turbine driven DFIG during external AC voltage dip[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(10): 19-.