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Research on Serial VSC-LCC Hybrid HVdc Control Strategy and Filter Design Scheme

Author

Listed:
  • Fan Cheng

    (State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electrical Power Research Institute, Beijing 100192, China)

  • Lijun Xie

    (State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electrical Power Research Institute, Beijing 100192, China)

  • Zhibing Wang

    (State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electrical Power Research Institute, Beijing 100192, China)

Abstract

This paper investigated the characteristics of a novel type of hybrid high voltage direct current (HVdc) converter, which is composed by line commutated converter series with voltage source converter. The system and valve level control strategies are introduced, which can provide ac system voltage support. A novel filter design scheme composed by resonant filers for hybrid HVdc are also proposed, which can decrease the capacity of reactive power compensation equipment without deteriorate harmonic characteristics. The ac voltage of HVdc fluctuation level caused by transmitted power variation will be effectively reduced, with the coordination between filter design scheme and converter control. In addition, the influence of ac grid strength is also analyzed by equivalent source internal impedance represented by short circuit ratio (SCR). Finally, the +800 kV/1600 MW hybrid HVdc system connecting two ac grids under different SCR cases are studied, and the PSCAD/EMTDC simulation results have validated the effectiveness for proposed strategy.

Suggested Citation

  • Fan Cheng & Lijun Xie & Zhibing Wang, 2020. "Research on Serial VSC-LCC Hybrid HVdc Control Strategy and Filter Design Scheme," Energies, MDPI, vol. 13(9), pages 1-16, May.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:9:p:2260-:d:353826
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    References listed on IDEAS

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    1. José Rafael Lebre & Paulo Max Maciel Portugal & Edson Hirokazu Watanabe, 2018. "Hybrid HVDC (H 2 VDC) System Using Current and Voltage Source Converters," Energies, MDPI, vol. 11(6), pages 1-15, May.
    2. Liang Xiao & Yan Li & Huangqing Xiao & Zheren Zhang & Zheng Xu, 2018. "Electromechanical Transient Modeling of Line Commutated Converter-Modular Multilevel Converter-Based Hybrid Multi-Terminal High Voltage Direct Current Transmission Systems," Energies, MDPI, vol. 11(8), pages 1-18, August.
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    Cited by:

    1. Zbigniew Olczykowski & Zbigniew Łukasik, 2021. "Evaluation of Flicker of Light Generated by Arc Furnaces," Energies, MDPI, vol. 14(13), pages 1-23, June.

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