Volume 39 Issue 10
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XU Min, ZHANG Hong-chuan, WANG Shu-hong, MA Yun, FAN Ye. Analysis of influence of initial phase angle of grid electromotive force on startup current of three-phase PWM rectifier[J]. Journal of Mine Automation, 2013, 39(10): 59-63. DOI: 10.7526/j.issn.1671-251X.2013.10.016
Citation: XU Min, ZHANG Hong-chuan, WANG Shu-hong, MA Yun, FAN Ye. Analysis of influence of initial phase angle of grid electromotive force on startup current of three-phase PWM rectifier[J]. Journal of Mine Automation, 2013, 39(10): 59-63. DOI: 10.7526/j.issn.1671-251X.2013.10.016
shu

Analysis of influence of initial phase angle of grid electromotive force on startup current of three-phase PWM rectifier

  • 1.

    College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China

  • 2.

    Dongfang Electric Machinery Co., Ltd., Deyang 618000, China

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  • The paper analyzed causes of startup inrush current of three-phase PWM rectifier, researched influence of initial phase angle of grid electromotive force and initial phase angle of AC side voltage on startup current, and proposed a method to use output of phase-locked loop to control initial phase angle of the grid electromotive force, which can avoid big startup current of a phase when starting, so as to make difference of three-phase AC currents between each other be not vary much. The experimental results verify correctness of the theoretical analysis and validity of the method.
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