期刊论文

Protection Scheme for Active Distribution System Based on Multi-agent Technology

中文

电力科学与工程

1672-0792

2016

32

6

57-62

10.3969/j.issn.1672-0792.2016.06.010

本校为第一机构

分布式电源（DG）接入配电网后,改变了配电网网络结构,导致原有保护装置出现拒动和误动等问题。提出了一种针对主动配电网且根据故障电流信号的多Agent保护方案。该方案采用三级代理的控制结构,底层代理负责信息采集,决策层代理负责故障定位,顶层负责全网状态监控。通过分析多分支节点电流故障分量相角特点和线路两端故障前后电流相角的突变方向,提出了两类决策单元的故障判定矩阵算法。该方法运用了广域故障信息,不仅能够提供主保护,还能为相邻线路和设备提供后备保护。最后,通过仿真分析结果证明该方法的正确性和可行性。

After distributed power ( DG) access to distribution network, which changes the structure of power dis?tribution network and leads to mis?operation and malfunction of protective relays. A multi?agent protective relay is proposed for active distribution grid based on fault current information. The scheme adopts the triple agent control structure, the underlying agency responsible for information collection, policy agency responsible for fault location;the top responsible for the entire network state monitoring. Through analyzing the characteristics of the multiple branch node current fault comp...