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Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier

Author

Listed:
  • Jun-Hyung Jung

    (Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea)

  • Hyun-Keun Ku

    (Converter Station Construction Team, Korea Electric Power Corporation, Naju, Jeollanam-do 58322, Korea)

  • Yung-Deug Son

    (Department of Mechanical Facility Control Engineering, Korea University of Technology and Education, Cheonan, Chungnam 31253, Korea)

  • Jang-Mok Kim

    (Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea)

Abstract

This paper proposes a fault diagnosis and tolerant control methods for an open-switch fault caused in a three-phase three-level neutral-point-clamped (NPC) pulse-width modulation (PWM) active rectifier. The open-switch fault in the three-level NPC active rectifier causes a distortion in the input phase current and a ripple in the DC-link capacitor voltage. Therefore, proper fault diagnosis and tolerant control methods are required to prevent additional failures and performance degradation in the rectifier system. This paper conducted a detailed analysis of the effect of the single open-switch fault on the NPC PWM active rectifier and proposed a fault diagnosis method utilizing the DC link voltage and the phase angle of the input grid voltage. Furthermore, this paper proposes a fault-tolerant control method to reduce the effect of the open-switch fault by compensating a distorted reference voltage. The effectiveness of the proposed fault diagnosis and tolerant control methods are verified through experimental results.

Suggested Citation

  • Jun-Hyung Jung & Hyun-Keun Ku & Yung-Deug Son & Jang-Mok Kim, 2019. "Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier," Energies, MDPI, vol. 12(13), pages 1-17, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:13:p:2495-:d:243741
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    Citations

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    Cited by:

    1. Weixuan Zhang & Yu Fang & Rong Ye & Zhengqun Wang, 2020. "Analysis and Design of a Double Fuzzy PI Controller of a Voltage Outer Loop in a Reversible Three-Phase PWM Converter," Energies, MDPI, vol. 13(15), pages 1-19, July.
    2. Kuei-Hsiang Chao & Chen-Hou Ke, 2020. "Fault Diagnosis and Tolerant Control of Three-Level Neutral-Point Clamped Inverters in Motor Drives," Energies, MDPI, vol. 13(23), pages 1-25, November.
    3. Luís Caseiro & André Mendes, 2021. "Fault Analysis and Non-Redundant Fault Tolerance in 3-Level Double Conversion UPS Systems Using Finite-Control-Set Model Predictive Control," Energies, MDPI, vol. 14(8), pages 1-39, April.

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