中国电力 ›› 2021, Vol. 54 ›› Issue (3): 159-167.DOI: 10.11930/j.issn.1004-9649.201907094

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基于综合权重和改进ELECTRE法的黑启动方案评估

项胤兴1, 林济铿2   

  1. 1. 国网福建省电力有限公司电力科学研究院,福建 福州 350007;
    2. 同济大学 电子与信息工程学院电力系,上海 201804
  • 收稿日期:2019-07-10 修回日期:2019-11-29 出版日期:2021-03-05 发布日期:2021-03-17
  • 作者简介:项胤兴(1986-),男,硕士,高级工程师,从事电力系统运行与控制、大电网稳定性仿真分析、网源协调运行控制技术等研究,E-mail: 21086435@qq.com;林济铿(1967-),男,博士,教授,从事电力系统稳定性分析及控制、智能电网等研究,E-mail: mejklin@126.com
  • 基金资助:
    国家自然科学基金资助项目(基于图论的智能电网电力孤岛的模型和优化, 51177107);国网福建省电力有限公司科技项目(福建电网黑启动预案及启动过程校验评估算法研究,SGFJDK00DWJS1800211)

Black-Start Scheme Evaluation Based on Improved ELECTRE Method and Comprehensive Weight

XIANG Yinxing1, LIN Jikeng2   

  1. 1. State Grid Fujian Electrical Power Research Institute, Fuzhou 350007, China;
    2. College of Electronic and Information Engineering, Tongji University, Shanghai 201804, China
  • Received:2019-07-10 Revised:2019-11-29 Online:2021-03-05 Published:2021-03-17
  • Supported by:
    This work is supported by National Natural Science Foundation of China (Model and Optimization of Power Island in Smart Grid Based on Graph Theory, No.51177107) and the Science & Technology Project of State Grid Fujian Electric Power Co., Ltd. (Research on Black Start Plan and Check and Evaluate Algorithm of Fujian Power Grid, No.SGFJDK00DWJS1800211)

摘要: 一个科学合理的黑启动方案直接影响系统恢复的快速性及有效性,因此如何从多个可行的恢复备选方案中评估出最优的黑启动方案就显得尤为重要。提出一种基于综合权重和改进ELECTRE法相结合的方法,并应用于黑启动方案评估。首先,综合权重是客观权重和专家权重按一定比例关系结合。其中,客观权重由传统熵权法求得,接着应用比率标度法确定评估指标的专家权重。然后通过采用三角模糊数及1-9标度法对黑启动评估方案中的定性指标进行描述,并把其与ELECTRE法相结合,克服了ELECTRE法无法适应于定性指标的评估及单纯依赖于专家权重的缺点。该方法实现了主观权重和客观权重的合理结合并改进ELECTRE法,使得黑启动方案评估更为方便,所得到的结果也更为合理。最后,算例验证了该方法的有效性和正确性。

关键词: 电力系统, 黑启动, ELECTRE法, 三角模糊数, 综合权重

Abstract: The scientificity and rationality of a black-start scheme directly affects the rapidity and effectiveness of system recovery. Therefore, it is particularly important to select an optimal black-start scheme from multiple feasible restoration options through evaluation. An evaluation method is proposed based on combination of comprehensive weight method and improved ELECTRE method, and applied to evaluation of black-start schemes. Firstly, the comprehensive weight is obtained by combining the objective weight and expert weight according to a certain proportion, of which the objective weight is obtained by traditional entropy weight method, and the expert weight of evaluation indexes is obtained by ratio scale method. Then, the qualitative index of the black-start evaluation scheme is described using triangular fuzzy number and 1-9 scale method, and then it is combined with the ELECTRE method, which overcomes the drawback that ELECTRE method cannot adapt to the evaluation of qualitative indexes and is solely dependent on the expert weight. The proposed method in this paper realizes the reasonable combination of subjective weight and objective weight, and improves the ELECTRE method, which makes the evaluation of black-start scheme more convenient and the obtained results more reasonable. Finally, a case study has verified the validity and correctness of the method.

Key words: power system, black start, ELECTRE-method, triangular fuzzy number, comprehensive weight