摘要
为了解决传统电网评价体系在评价大规模新能源和电网相互作用复杂机理时存在的不足,建立一套考虑大规模新能源接入的电网性能指标评价体系。首先,从新型电力系统的核心特征出发,贯穿“源网荷储”各个环节,构建包含接入水平、协调水平、适应水平以及承载水平4个维度的电网性能评价指标,显性表达各个指标的统计或计算方式。其次,采用AHP-CRITIC法进行主客观组合赋权,依据电网发展数据自身的客观属性,考虑数据离散程度以及皮尔逊相关系数,挖掘指标间的冲突性和变异性,以增强权重设置的科学性。最后,利用某城市新能源和电网数据对指标体系进行测算,通过对比分析说明所提指标体系与评价方法的有效性,并依据指标灵敏度大小对电网薄弱环节提出发展建议。
There are deficiencies in evaluating the complex mechanism of the mutual effects between large-scale new energy and the power grid by traditional power grid evaluation systems.Thus a performance evaluation index system is established considering large-scale new energy access.First,based on the key characteristics of the new power system and considering all parts of“power supply,grid,load and energy storage”,a power grid performance evaluation index containing connection,coordination,adaptation and carrying capacity levels can be set up.In addition,it explicitly expresses the statistical or calculation method for each index.Secondly,the AHP-CRITIC method is used to enable subjective and objective weights,and investigate the conflict and changeability among different indices based on the objective property of data from the power grid and computing standard deviation/Pearson correlation coefficient to highlight the scientific features on setting index weights.Finally,the index system for the data from new energy and the power grid in one city is surveyed and computed.The effectiveness of the proposed index system and evaluation method is shown through comparison and analysis.Some development proposals for weak parts of the power grid are proposed on the basis of the indicator’s sensitivity.
作者
李响
武海潮
王文雪
安全
LI Xiang;WU Haichao;WANG Wenxue;AN Quan(Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015,China;Henan Juyan Electric Power Technology Co.,Ltd.,Zhengzhou 450000,China)
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2024年第15期178-187,共10页
Power System Protection and Control
基金
河南省科技攻关项目资助(222102240117)。
关键词
新能源
新型电力系统
指标体系
皮尔逊相关系数
权重
new energy
new power system
index system
Pearson correlation coefficient
weight
