Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Direct Duty-ratio Modulated Fault-tolerant Strategy for Matrix Converter-fed Motor Drives

  • Li, Yulong (Division of Electro Electric Systems, Hyundai Heavy Industries Co., LTD.) ;
  • Choi, Nam-Sup (Division of Electric., Electron. Communication & Computer Eng., Chonnam National University) ;
  • Han, Byung-Moon (Dept. of Electrical Eng., Myongji University) ;
  • Nho, Eui-Cheol (Dept. of Electrical Eng., Pukyong National University)
  • Received : 2011.09.03
  • Accepted : 2011.11.18
  • Published : 2012.01.20
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Abstract

Direct duty-ratio PWM schemes for continuous fault tolerant operation of matrix converter-fed motor drives are presented. The proposed method features simple modular modulation structure based on per output phase concept, which requires no additional modification on the normal modulation schemes for fault-tolerant applications. Realizations of fault-tolerant strategy applied to different system configurations are also treated to enhance the system flexibility. The proposed method can be effectively applied to treat the motor open phase fault and converter switching device failure. Simulation and experimental results show the feasibility and validation of the proposed strategies.

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References

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