基于虚拟电流注入技术的有源配电网故障定位Fault Location Method of Active Distribution Networks Based on Virtual Current Injection Technology
梁梦可,刘远,韩文文,高晗,李意欣
LIANG Mengke,LIU Yuan,HAN Wenwen,GAO Han,LI Yixin
摘要(Abstract)：
针对分布式电源大量接入配电网导致传统配电线路故障定位方法不再适用的问题,提出了一种基于虚拟电流注入技术的有源配电网故障定位算法。此算法无需附加设备,采用注入虚拟电流的方式,对电源出口的电流偏差相量进行2-范数运算,以最小电流偏差来进行故障定位,通过在PSCAD上搭建仿真模型,验证了此算法的有效性和准确性。
Large-scale distributed generations(DG) are connected to the distribution network, which makes the traditional fault location methods of distribution lines no longer applicable to the current problem of power grid fault location. This paper presents a fault location algorithm for active distribution network based on virtual current injection technology, which does not need additional equipment and uses the virtual current injection for current deviation phasor by 2-norm at the outlet of the power supply, and applies the minimum current deviation for fault location. The simulation model is built on PSCAD to verify the validity and accuracy of the algorithm.
关键词(KeyWords)：
分布式电源;有源配电网;故障区域定位;前推回代法
DG;active distribution network;fault region location;the forward/backward sweep method
基金项目(Foundation): 四川省科技厅重点研发项目(2017FZ0103)
作者(Author):
梁梦可,刘远,韩文文,高晗,李意欣
LIANG Mengke,LIU Yuan,HAN Wenwen,GAO Han,LI Yixin
DOI: 10.19585/j.zjdl.201906002
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