基于回路分析的配电网电压及网损灵敏度分析方法研究  

Research on the Sensitivity Analysis Method of Distribution Network Voltage and Network Loss Based on Loop Analysis

作　　者：邓慧琼[1] 张晓飞 郑玉燚 郑荣进[1] 李培强[1] DENG Huiqiong;ZHANG Xiaofei;ZHENG Yuyi;ZHENG Rongjin;LI Peiqiang(Simulation Analysis and Integrated Control of Smart Grid Fujian University Engineering Research Center,School of Electronics,Elecricity and Physics,Fuyjian Institue of Engineering,Fuzhou 350108,China)

机构地区：[1]智能电网仿真分析与综合控制福建省高校工程研究中心,福建工程学院电子电气与物理学院,福建福州350108

出　　处：《福建师范大学学报（自然科学版）》2022年第1期34-39,68,共7页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金资助项目(2018J01622);福州市科技计划(2018-G-30)。

摘　　要：针对分布式电源的接入对配电网安全稳定运行的影响,采用回路分析法来获取配电网运行参数的变化量.首先利用回路分析法将配电网转化为电路的形式,结合电压波动理论及分布式电源接入前后效果分析,然后利用叠加定理对支路电流进行叠加,利用回支关联矩阵来构建节点电压、线路损耗的灵敏度矩阵来分析节点电压变化和网络损耗变化,最后在IEEE33节点配电系统上仿真研究,仿真结果验证了所提方法的有效性.Aiming at the impact of the access of distributed generation on the safe and stable operation of the distribution network,this paper proposes a method based on loop analysis to obtain the variation of operating parameters of distribution network.Firstly,the loop analysis method is used to change the distribution network into the form of circuit,combining the voltage fluctuation theory and the effect analysis before and after the distributed generation access.Then the superposition theorem is used to superimpose the branch current,the back branch incidence matrix used to construct the node voltage,and the sensitivity matrix of line loss used to analyze the node voltage change and the network loss.Finally,the results of a simulation research on IEEE33 node distribution system verify the effectiveness of the proposed method.

关 键 词：配电网 分布式电源 回路分析法 节点电压 网络损耗 

分 类 号：TM7[电气工程—电力系统及自动化]