Fuzzy synthetic evaluation based on entropy method of high renewable energy penetration power grid at sending end
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    Abstract:

    The high renewable energy penetration power grid at sending end is widely distributed in China and their safety risks are existed and can not be ignored. Currently, there is no specific model and indicator system for its risk assessment while the traditional risk assessment method is also difficult to conduct a quantitative risk assessment. Under the background, a relatively complete evaluation index system is constructed for the high renewable energy penetration power grid at sending end, and a fuzzy comprehensive evaluation method is proposed based on the entropy weight method. The entropy weight method is utilized to determine the weight of each index. The degree of membership is determined by the improved triangular trapezoidal membership function and the comprehensive evaluation results are obtained through fuzzy comprehensive evaluation. This paper analyzes an example of the high renewable energy penetration power grid at sending end. The analysis results show that the proposed method can effectively evaluate the risk degree of the power grid at sending end and provide a basis and reference for the actual operation of the power grid.

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郝如海,智勇,祁莹,拜润卿,刘文飞,龚庆武,方金涛,刘栋,陈文辉.基于熵权法的新能源高渗透率送端电网风险模糊综合评价[J].电力科学与技术学报英文版,2021,36(1):73-78. HAO Ruhai, ZHI Yong, QI Ying, BAI Runqing, LIU Wenfei, GONG Qingwu, FANG Jintao, LIU Dong, CHEN Wenhui. Fuzzy synthetic evaluation based on entropy method of high renewable energy penetration power grid at sending end[J]. Journal of Electric Power Science and Technology,2021,36(1):73-78.

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  • Received:
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  • Online: April 16,2021
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