Journal of Power Electronics

  • 제22권7호
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  • Pages.1112-1119
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  • 2022
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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DOI QR코드

DOI QR Code

Fault tolerance for PWM rectifiers based on basic voltage space vector model

  • Sun, Chao (School of Energy and Power Engineering, Nanjing University of Science and Technology) ;
  • Qiu, Yingning (School of Energy and Power Engineering, Nanjing University of Science and Technology)
  • 투고 : 2021.12.01
  • 심사 : 2022.03.14
  • 발행 : 2022.07.20
⟨ 이전 논문 다음 논문 ⟩

초록

A new basic voltage space vector model-based fault tolerance method from new perspective of vector reconstruction for generator side converter open circuit faults is proposed in this paper. In the space vector model, changes of voltage space vectors under single and multiple switch open-circuit fault conditions are summarized in mathematical expressions. The corrected voltage space vectors under fault conditions are essentially linear superpositions of normal voltage space vectors and the changes introduced by their corresponding faulty switches. The new fault tolerance method, which is developed based on a basic voltage vector model, uses reconstructed basic voltage space vectors to compensate the reference voltage vector. It realizes full-scale fault-tolerant compensation. The feasibility and superiority of the proposed fault-tolerant method are tested and compared on an experimental platform. The achieved superior system performance of the proposed fault tolerance method sufficiently demonstrates its effectiveness as well as the voltage vector deviation principle presented in this paper. It provides important insights into the fault tolerance control of power converters.

키워드

과제정보

This work is supported by National Key Research & Development Program of China (No.2019YFE0104800). On behalf of all authors, the corresponding author states that there is no conflicts of interest.

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