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Mechanical Switch Based Adaptive Fault Ride-through Strategy for Power Quality Improvement Device

Author

Listed:
  • Yu Shen

    (Electric Power Research Institute State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Wei Hu

    (Electric Power Research Institute State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Yaoyao Xiao

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Ganghua Zhang

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Mingyu Han

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Fan Yang

    (Electric Power Research Institute State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Wenping Zuo

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

Abstract

Cascaded H-bridge power quality improving device (PQID) has garnered extensive attention for its flexible electric energy conversion and fast voltage response. However, the failure rate of PQID is relatively high due to the use of large numbers of power electronic devices. This paper proposes a mechanical-switch based adaptive fault ride-through strategy for improving the operational stability and power supply reliability of PQID. According to the features of the topology and working principle of PQID, this paper summarized the types of internal faults and analyzed the characteristics of different types of faults. Based on the shortcomings of existing mechanical switches as a bypass method, corresponding adaptive fault ride-through strategies are proposed for different types of faults, and a comprehensive simulation test has been carried out. The results show that the proposed strategy can adaptively ride through unit faults and effectively improve the output waveform quality during the ride through time.

Suggested Citation

  • Yu Shen & Wei Hu & Yaoyao Xiao & Ganghua Zhang & Mingyu Han & Fan Yang & Wenping Zuo, 2021. "Mechanical Switch Based Adaptive Fault Ride-through Strategy for Power Quality Improvement Device," Energies, MDPI, vol. 14(20), pages 1-19, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6623-:d:655698
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    References listed on IDEAS

    as
    1. Yu Zhang & Xiaohui Song & Yong Li & Zilong Zeng & Chenchen Yong & Denis Sidorov & Xia Lv, 2020. "Two-Stage Active and Reactive Power Coordinated Optimal Dispatch for Active Distribution Network Considering Load Flexibility," Energies, MDPI, vol. 13(22), pages 1-13, November.
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