基于保护协调配合的最小断点集选取方法  

A Method for Selecting Minimum Break Point Set Based on the Coordination of Protections

作　　者：周晓霞[1] 

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《通信电源技术》2015年第6期151-153,共3页Telecom Power Technology

摘　　要：为实现复杂环网方向保护整定计算起点的合理选择,提出了基于保护协调配合的最小断点集选取方法。该方法以电网方向保护配合级数总和为评价指标,评价电网各级保护间的协调配合性能。以电网方向保护整体配合最优为目标,在多组可选最小断点集中实现保护整定配合起点的选择。算例结果验证了该方法的有效性。To achieve the reasonable selection of protecting setting calculation starting-points in complex ring direction, a method based on the protections coordination for selecting minimum break point set is proposed. By using the total pro-tected coordinating steps of grid direction as the measurement index, the coordinating performance of protection at all levels in grid is evaluated. With the objective of obtaining the optimal whole coordination of gricds directional protections, the selection of setting coordination starting-points is realized through many optional minimum break point sets. Calculation results verify the validity of the proposed method.

关 键 词：最小断点集 方向保护 整定计算 复杂环网 

分 类 号：TM77[电气工程—电力系统及自动化]