基于一二次融合设备的配电网含分支线路参数计算方法  

Parameters Calculation Method of Distribution Network Branch Lines Based on Primary-secondary Integration Equipment

作　　者：彭雨舟 林有浩 邓炎 韩思维 何攻 卢继平[2] 李渠佳 PENG Yuzhou;LIN Youhao;DENG Yan;HAN Siwei;HE Gong;LU Jiping;LI Qujia(Chongqing Chuandong Electric Power Co.,Ltd.,Chongqing 408099,China;Chongqing University,State Key Laboratory of Power Transmission Equipment&System Security and New Technology,Chongqing 400044,China;State Grid Chongqing Electric Power Company,Chongqing 400015,China)

机构地区：[1]重庆川东电力集团有限责任公司,重庆408099 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [3]国网重庆市电力公司,重庆400015

出　　处：《智慧电力》2024年第6期84-91,122,共9页Smart Power

基　　金：国家自然科学基金资助项目(52077017);国网重庆市电力公司重点科技项目资助(522075230001)。

摘　　要：精确的线路参数是实现配电网安全经济可靠运行的基础。由于配电网的结构特点,难以获得准确的配电网线路参数。基于一二次融合设备的录波数据,提出了1种新的配电网线路参数计算方法。该方法能够精确计算配电线路的正序、负序和零序参数,包括电容参数。该方法能够适用于配电网点多面广、分支众多的实际情况,也能用于含分布式新能源的配电网,计算精度不受故障类型和负荷变化的影响。仿真结果表明,其计算结果和精度能够满足电力系统继电保护和电网运行的要求。Accurate line parameters are the foundation for the safe,economical and reliable operation of distribution network.Due to the structural characteristics of distribution networks,obtaining precise line parameters is not easy.Based on waveform data from primary-secondary integration equipment,a new method is proposed for calculating distribution network line parameters.This method can accurately calculate positive,negative and zero-sequence parameters of distribution lines,including capacitance parameters.The method is suitable for practical scenarios with diverse network nodes and numerous branches in distribution networks,as well as for distribution networks with distributed renewable energy sources.Its calculation accuracy remains unaffected by fault types and load variations.Simulation results demonstrate that its computation results and precision can meet the requirements of power system protection and grid operation.

关 键 词：配电网 一二次融合设备 含分支线路 线路参数计算 故障录波数据 

分 类 号：TM726[电气工程—电力系统及自动化]