电力系统自动化Issue(7)：151-156,163,7.DOI:10.7500/AEPS20140422004
距离Ⅱ段保护简化整定方法及区域式后备保护方案
A Simplified Method of Distance Relay Zone-Ⅱ Setting Calculation and a Region-based Backup Relaying Scheme
陈梦骁 1王慧芳 1何奔腾1
作者信息
- 1. 浙江大学电气工程学院，浙江省杭州市 310027
- 折叠
摘要
Abstract
The problems in the traditional method of distance relay zone-Ⅱ setting calculation are analyzed,and a novel method is proposed to simplify the setting calculation.As the simplified method is only concerned with the sensitivity requirement without asking for coordination between adjacent lines,the complexity of setting calculation is reduced while the speed of zone-Ⅱ distance relaying is ensured.However,for the possibility of loss of selectivity with the above-mentioned method under some circumstances,a region-based backup relaying scheme is proposed.The startup information of traditional distance relays in local and adjacent substations is utilized to form the logical criterion.The region-based scheme is able to correctly identify the fault location,accelerate the backup relaying,and immunize against the relaying N-1 operation status such as communication failure and element information missing.The results of a case study show that the simplified method of distance relay zone-Ⅱsetting calculation combined with the region-based backup relaying scheme has realized the unification of selectivity,sensitivity and rapidity.关键词
区域式保护/距离Ⅱ段保护/整定计算/后备保护/开关量信号Key words
region-based relaying/zone-Ⅱ distance relaying/setting calculation/backup relaying/on-off signal引用本文复制引用
陈梦骁,王慧芳,何奔腾..距离Ⅱ段保护简化整定方法及区域式后备保护方案[J].电力系统自动化,2015,(7):151-156,163,7.
