Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (2): 89-96,106.doi: 10.3969/j.issn.1000-565X.2016.02.014

• Power & Electrical Engineering • Previous Articles     Next Articles

Fixed-Frequency Hysteresis Control Based on Optimal Space Vector

ZENG Jiang CHEN Hao-ping GU Zhi-peng Huang Hai-ying   

  1. School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2015-05-14 Revised:2015-10-21 Online:2016-02-25 Published:2016-01-04
  • Contact: 曾江(1972-) ，男，副教授，主要从事配电网自动化、电能质量分析与控制研究． E-mail:zengxy@scut.edu.cn
  • About author:曾江(1972-) ，男，副教授，主要从事配电网自动化、电能质量分析与控制研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51477055)

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Abstract: Proposed in this paper is a novel hysteresis current control method based on the optimal space vector for active power filters with constant switching frequency.In this method,the hysteresis width of the next cycle is linearly predicted by the previous switching time,and the switching phase is aligned with a clock signal with fixed frequency,thus achieving the discontinuous SVPWM ( Space Vector Pulse Width Modulation) based on optimal space vector.Moreover,two kinds of discontinuous SVPWM modes are used alternately to further reduce the current error.The effectiveness of the proposed method is finally verified by means of PSCAD/EMTDC simulation.

Key words: active power filter, optimal space vector, space vector pulse width modulation, hysteresis current control, constant frequency

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