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Phase Sequence Exchange Technology Based on MMC for Improving the Power Angle Stability of Power Systems

Author

Listed:
  • Peng Dong

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, North China Electric Power University, Changping District, Beijing 102206, China)

  • Shaofeng Huang

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, North China Electric Power University, Changping District, Beijing 102206, China
    Beijing Sifang Automation Co., Ltd., Haidian District, Beijing 100085, China)

  • Peng Sun

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, North China Electric Power University, Changping District, Beijing 102206, China)

  • Tailai Xu

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, North China Electric Power University, Changping District, Beijing 102206, China)

  • Junjian Lin

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, North China Electric Power University, Changping District, Beijing 102206, China)

  • Hui Li

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, North China Electric Power University, Changping District, Beijing 102206, China)

  • Yifan Li

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, North China Electric Power University, Changping District, Beijing 102206, China)

Abstract

Power angle stability of power systems is one of the main factors which restricts the power transmission capacity. In order to prevent the power angle instability of power systems, phase sequence exchange (PSE) is a recently developed emergency control technique that reduces the power angle by 120°. This paper proposes a new phase sequence exchange technology based on a modular multi-level converter (MMC). In this paper, the concept of deceleration area ratio is proposed, that is used to characterize the power angle stability of the power system, and the phase sequence exchange theory based on an MMC is analyzed. A phase sequence exchange circuit based on a modular multilevel converter (MMC) is designed. In this paper, the system parameters of the MMC-based PSE are optimized. Finally, a model is developed on PSCAD. The simulation results show that the MMC-based phase sequence exchange technology can effectively improve the power angle stability of the power system.

Suggested Citation

  • Peng Dong & Shaofeng Huang & Peng Sun & Tailai Xu & Junjian Lin & Hui Li & Yifan Li, 2022. "Phase Sequence Exchange Technology Based on MMC for Improving the Power Angle Stability of Power Systems," Energies, MDPI, vol. 15(21), pages 1-20, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:8014-:d:956054
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