分布式新能源配电网输出线路负载诊断模型分析  

Analysis of load diagnostic model for output line ofdistributed new energy distribution network

作　　者：吴健 吴奎华 崔灿 李昭 王延朔 张博颐 WU Jian;WU Kui-hua;CUI Can;LI Zhao;WANG Yan-shuo;ZHANG Bo-yi(Economic and Technological Research Institute,State Grid Shandong Electric Power Company,Jinan 250000,China)

机构地区：[1]国网山东省电力公司经济技术研究院,济南250000

出　　处：《沈阳工业大学学报》2023年第3期259-263,共5页Journal of Shenyang University of Technology

基　　金：国家重点研发计划资助项目(2016YFB0900100);国家电网公司科技项目(520625190012)。

摘　　要：针对在风力发电机发电量较大情况下,诊断电网负载特性时存在估计误差大、诊断运行时间长的问题,提出分布式新能源配电网输出线路负载诊断模型并进行了分析.以电力网络的等值电路为基础,结合耦合现象消除函数调整机制,提取分布式新能源配电网输出线路负载参数,通过和声搜索算法构建输出线路负载诊断模型.仿真结果表明,所组建的模型在配电网瞬时状态下有效,检测不同区域数据的运行时间低于两种对比方法.Aiming at the problems of large estimation error and long diagnosis running time when diagnosing load characteristics of power grid under the condition of large wind power generation,a load diagnostic model for the output line of distributed new energy distribution network was proposed and analyzed.In terms of the equivalent circuit of power network and in combination with the adjustment mechanism of coupling elimination function,the load parameters of output line of distributed new energy distribution network were extracted,and the load diagnostic model for the output line was constructed by a harmony search algorithm.The simulation results show that the as-proposed model is effective under the transient state of distribution network,and the running time of detecting data in different regions is lower than those of two comparison methods.

关 键 词：分布式新能源 配电网 输出线路 负载诊断模型 等值电路 和声搜索算法 定子侧 转子侧 

分 类 号：TM933[电气工程—电力电子与电力传动]