基于组合赋权和改进灰色关联的配网运行水平评估方法

doi:10.3969/j.issn.1008-0198.2023.03.011

湖南电力 ›› 2023, Vol. 43 ›› Issue (3): 70-76.doi: 10.3969/j.issn.1008-0198.2023.03.011

基于组合赋权和改进灰色关联的配网运行水平评估方法

兰征¹, 郭凯涛¹, 尹锐¹, 邹彬¹, 曾进辉¹, 谭友奇², 李娟²

1.湖南工业大学电气与信息工程学院,湖南株洲 412007;
2.国网湖南省电力有限公司永州供电分公司,湖南永州 425000

收稿日期:2023-02-07 修回日期:2023-03-16 出版日期:2023-06-25 发布日期:2023-06-25
通信作者: 郭凯涛(1995),男,硕士研究生,研究方向为配电网运行与分析。
作者简介:兰征(1985),男,博士,副教授,研究方向为电力电子技术及其在电力系统中的应用。
基金资助:
湖南省自然科学基金项目(2021JJ50002,2021JJ50059)

Evaluation Method of Distribution Network Operation Level Based on Combination Weighting and Improved Grey Correlation

LAN Zheng¹, GUO Kaitao¹, YIN Rui¹, ZOU Bin¹, ZENG Jinhui¹, TAN Youqi², LI Juan²

1. College Electrical Information Engineering,Hunan University of Technology, Zhuzhou 412007, China;
2. Sate Grid Yongzhou Electric Power Supply Company, Yongzhou 425000, China

Received:2023-02-07 Revised:2023-03-16 Online:2023-06-25 Published:2023-06-25

摘要/Abstract

摘要： 合理评估配电网的运行水平,可为配网的规划、改造及运行优化提供参考,对配网的安全稳定运行有着极其重要的意义。利用影响配网运行水平的相关指标,提出基于组合赋权和改进灰色关联的配网运行水平评估方法。首先,引入配网运行水平各评估指标之间的相关性关联系数,采用组合赋权法对各指标的综合权重进行修正,进而求得各区域的综合评价指标,从而识别出配网运行水平的薄弱区域,得到亟需改造的目标区域。然后,引入均差影响系数改进传统灰色关联法,求出配网运行水平影响因素与综合评价指标的关联度,从而得到各影响因素对配网运行水平的影响程度。最后,通过对某地的实例分析,验证了方法的有效性和优越性。

关键词: 配网运行水平, 组合赋权, 改进灰色关联法, 综合评价

Abstract: Reasonable evaluation of distribution network operation level can provide reference for distribution network planning, transformation and operation optimization, which is of great significance to the safe and stable operation of distribution network. By using the related indexes that affect the operation level of distribution network, a method based on combination weighting and improved grey correlation is proposed to evaluate the operation level of distribution network. Firstly, the correlation coefficient of each evaluation index of distribution network operation level is introduced, and the combined weight method is used to modify the comprehensive weight of each index, and then the comprehensive evaluation index of each region is obtained, thus, the weak area of distribution network operation level is identified and the target area in urgent need of transformation is obtained. Then, the mean difference influence coefficient is introduced to improve the traditional grey correlation method, and the correlation degree between the influencing factors of distribution network operation level and the comprehensive evaluation index is obtained, so as to get the influence degree of each influencing factor on the distribution network operation level. Finally, the effectiveness and superiority of the proposed method are verified by an example.

Key words: distribution network operation level, combination of empowerment, improved grey correlation, comprehensive evaluation

中图分类号:

TM727

兰征, 郭凯涛, 尹锐, 邹彬, 曾进辉, 谭友奇, 李娟. 基于组合赋权和改进灰色关联的配网运行水平评估方法[J]. 湖南电力, 2023, 43(3): 70-76.

LAN Zheng, GUO Kaitao, YIN Rui, ZOU Bin, ZENG Jinhui, TAN Youqi, LI Juan. Evaluation Method of Distribution Network Operation Level Based on Combination Weighting and Improved Grey Correlation[J]. Hunan Electric Power, 2023, 43(3): 70-76.

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基于组合赋权和改进灰色关联的配网运行水平评估方法

Evaluation Method of Distribution Network Operation Level Based on Combination Weighting and Improved Grey Correlation

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