分布式光伏系统电能质量的主客观综合评估  

Subjective and Objective Comprehensive Evaluation of Power Quality of Distributed Photovoltaic System

作　　者：何玉灵[1,2] 王博 孙凯 韩志成 袁兴华 杜晓东[1,3] 郇嘉嘉 HE Yuling;WANG Bo;SUN Kai;HAN Zhicheng;YUAN Xinghua;DU Xiaodong;HUAN Jiajia(Department of Mechanical Engineering,North China Electric Power University,Baoding 071003,China;Electric Machinery Equipment Advanced Manufacturing and Intelligent Operation and Maintenance Engineering Research Center of Hebei Province,Baoding 071003,China;Power Research institute Electric Power Research institute of State Grid Hebei Electric Power Co.,Ltd.,Shijiazhuang 050000,China;Power Grid Planning and Research Center of Guangdong Power Grid Co.,Ltd,Guangzhou 510699,China)

机构地区：[1]华北电力大学机械工程系,保定071003 [2]电力机械装备先进制造与智能运维河北省工程研究中心,保定071003 [3]国网河北电力有限公司电力科学研究院,石家庄050000 [4]广东电网有限责任公司电网规划研究中心,广州510699

出　　处：《华南师范大学学报(自然科学版)》2024年第6期17-25,共9页Journal of South China Normal University(Natural Science Edition)

基　　金：国家自然科学基金面上项目(52177042);河北省高等学校科学技术研究重点项目(ZD2022162);中央高校基本科研业务费面上项目(2024MS133);南方电网公司科技项目(GDKJXM20230402);南方电网科技项目(090000KC23030099);北京市自然科学基金项目(9222028)。

摘　　要：为解决分布式光伏系统电能质量评估中多维指标权重计算的问题,基于国家标准对电能质量指标进行等级划分,提出了改进遗传投影寻踪法和改进层次分析法,分别用于确定电能质量评价模型中的客观权重和主观权重。通过将主客观权重进行组合,获得最终的综合权重。采用边界值计算划分等级区间,并对从分布式光伏系统采集的5组电能数据进行了电能质量评估。结果表明:河北省电力机械装备健康维护与失效预防重点实验室分布式光伏系统的电能质量管理水平良好;系统稳定性较高;相比基于熵值法和改进层次分析法生成的主客观复合权重的电能质量综合评估模型,基于改进遗传投影寻踪法和改进层次分析法生成的主客观复合权重的电能质量综合评估模型更具有科学性和实用性。研究结果对于维持电网稳定、保护用电设备、提高电网整体用电安全具有重要意义。In order to solve the problem of weight calculation of multi-dimensional indicators in power quality evaluation of distributed photovoltaic system,power quality indicators are classified based on national standards,and improved genetic projection tracing method and improved analytic hierarchy process are proposed to determine the objective weight and subjective weight of power quality evaluation model,respectively.By combining subjective and objective weights,the final comprehensive weight is obtained.Then,the boundary value calculation is used to divide the grade interval,and the power quality assessment is carried out on the five groups of power data collected from the distributed photovoltaic system.The results show that the power quality management level of distributed photovoltaic system in Hebei Key Laboratory of Power Machinery Equipment Health Maintenance and Failure Prevention is good;High system stability;Compared with the power quality comprehensive evaluation model based on entropy method and improved analytic hierarchy process(AHP),the power quality comprehensive evaluation model based on improved genetic projection tracing method and improved analytic hierarchy process(AHP)is more scientific and practical.The research results are of great significance for maintaining the stability of power grid,protecting power equipment and improving the overall safety of power grid.

关 键 词：分布式光伏系统 电能质量 改进遗传投影寻踪法 改进层次分析法 主客观复合权重 

分 类 号：TM732[电气工程—电力系统及自动化]