Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Design Method for the LCL Filters of Three-phase Voltage Source PWM Rectifiers

  • Guo, Xizheng (School of Electrical Engineering, Beijing Jiaotong University) ;
  • You, Xiaojie (School of Electrical Engineering, Beijing Jiaotong University) ;
  • Li, Xinran (School of Electrical Engineering, Beijing Jiaotong University) ;
  • Hao, Ruixiang (School of Electrical Engineering, Beijing Jiaotong University) ;
  • Wang, Dewei (School of Electrical Engineering, Beijing Jiaotong University)
  • Received : 2010.12.10
  • Published : 2012.07.20
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Abstract

A new design method for the LCL filters of three-phase voltage source PWM rectifiers is presented in this paper. Based on the single-phase harmonic equivalent model, the harmonic voltage of the rectifier side is calculated to design the LCL filter parameters by an iterative algorithm, in which the resonance frequency $f_{res}$ and the ratio r between the grid-side inductance and the rectifier-side inductance are selected as known constants. The design criteria and process are introduced and the influence on the design result by the value of the resonance frequency $f_{res}$, ratio r is analyzed. Finally an example (600V, 500kW) is tested by simulation and experiment to verify the validity of the new design method.

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References

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