Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (4): 24-28.

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Generation of Chaos-Based SVPWM and Analysis of Its Frequency Spectral Property

Lu Yi-min1  Zhang Bo2  Mao Zong-yuan3   

  1. 1.College of Electrical Engineering,Guangxi University,Nanning 530004,Guangxi,China;2.College of Electric Power,South China University of Technology,Guangzhou 5 10640,Guangdong,China;3.College of Automation Science and Engineering, South China University of Technology ,Guangzhou 510640,Guangdong.China
  • Received:2004-02-12 Online:2005-04-25 Published:2005-04-25
  • Contact: 陆益民(1970-)，女，博士，副教授，主要从事现代控制理论及应用、交流传动系统的混沌现象及控制研究 E-mail:au|ym@163.com
  • About author:陆益民(1970-)，女，博士，副教授，主要从事现代控制理论及应用、交流传动系统的混沌现象及控制研究
  • Supported by:

    广东省自然科学基金资助项目(011652)；国家自然科学基金资助项目(60474066，50177009)；广西大学科研基金资助项目(DD020008)

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Abstract:

A new space vector pulse-width modulation strategy, namely,CSVPW M,is proposed based on the chaos theory.Unlike the conventional SVPW M with fixed switching frequency, CSVPW M uses a chaotic changing switc-hing frequency to spread the harmonics continuously into a wideband area, so that the peak harm onics can greatlv be reduced.The proposed SVPW M scheme is then simulated on an induction motor fed by a voItage source invert-er.The results show that the motor operates in a similar way as with conventional SVPW M supplying. and that larger harmonic voltage and current are effectively suppressed. The proposed method would be a new way to reduce the electromagnetic noise caused by harm onic

Key words: motor, Pulse-Width Modulation, chaos, harm onic, frequency spectral propertv