Evaluation method of blackstart scheme with VSCHVDC considering aftereffects
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    Abstract:

    The black start scheme for VSCHVDC can maintain the voltage stability of the converter bus and effectively suppress the possible overvoltage problems. Under this background, an evaluation method is proposed for the black start scheme of VSCHVDC considering aftereffects. Firstly, the operation characteristics of VSCHVDC are introduced; Secondly, the initial recovery evaluation index and aftereffects evaluation index are comprehensively combined to characterize the pros and cons of the scheme. A comprehensive evaluation system is then established to fully reflect the pros and cons of the scheme. Thirdly, the order relation analysis method and the improved CRITIC method are utilized to determine the subjective and objective weight respectively. The combination weighting method based on game theory is then employed to obtain the combination weight of each index to be evaluated. Furthermore, a comprehensive evaluation of the black start scheme of HVDC satisfying all kinds of constraints is analyzed to determine the advantages and disadvantages. Finally, the feasibility of proposed method is verified by the restoration of the power supply with Luxi backtoback VSCHVDC system after a blackout in Yunnan power grid.

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刘旭斐,吴琛,张丹,黄伟,李鹏飞.考虑后效性的柔性直流输电黑启动方案评估方法[J].电力科学与技术学报英文版,2020,35(6):110-116. LIU Xufei, WU Chen, ZHANG Dan, HUANG Wei, LI Pengfei. Evaluation method of blackstart scheme with VSCHVDC considering aftereffects[J]. Journal of Electric Power Science and Technology,2020,35(6):110-116.

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  • Received:
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  • Online: April 16,2021
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