中国电机工程学报Issue(10)：1650-1657,8.DOI:10.13334/j.0258-8013.pcsee.2014.10.017
基于节点搜索的微电网自适应保护方法
An Adaptive Protection Method for Micro-grid Based on Node Searching
摘要
Abstract
The traditional protection schemes are unsuitable for micro-grid due to the variety of micro-grid topology and fault characteristics in islanding and grid-connecting circumstances. In this paper, an adaptive protection scheme based on identifying the direction of fault current was presented. Real-time topology of the micro-grid was expressed with the path graph of the node tree. The node tree searching process and node path identification algorithm were presented. The searching and identifying results were applied to adaptively set the operation values and time limits. An adaptive protection system based on IEC 61850 was proposed. Simulation results verify the validation of the method. By means of the presented scheme, the relay settings can adaptively track the topology changes of micro-grid in real time.关键词
微电网/自适应保护/树形节点路径图/树形节点搜索/IEC 61850Key words
micro-grid/adaptive protection/path graph of node tree/path searching of node tree/IEC 61850分类
信息技术与安全科学引用本文复制引用
贾清泉,孙玲玲,王美娟,杨威..基于节点搜索的微电网自适应保护方法[J].中国电机工程学报,2014,(10):1650-1657,8.基金项目
国家自然科学基金项目(51177142)。Project Supported by National Natural Science Foundation of China (51177142) （51177142）
