继电保护与配电自动化配合的配电网故障处理  

Relay protection and distribution automation based fault allocation and restoration for distribution systems

作　　者：刘健[1,2] 张志华[1,2] 张小庆[1] 郑剑敏[3] 

机构地区：[1]陕西电力科学研究院,陕西西安710054 [2]西安科技大学,陕西西安710054 [3]西安供电局,陕西西安710032

出　　处：《电力系统保护与控制》2011年第16期53-57,113,共6页Power System Protection and Control

基　　金：国家电网公司重大科技项目

摘　　要：为了实现中压配电网继电保护的协调配合,对多级保护配合的可行性以及配合方法进行了论述,对于需要依靠延时时间级差配合的情况,根据所采用的断路器操动机构、驱动技术和软件算法的不同提出两类配合方案。对继电保护与配电自动化配合的集中式故障处理模式进行了研究,分别建议了两级级差保护和三级级差保护的配置原则和多级保护与配电自动化配合的集中式故障处理策略。提出了一种多级级差保护与电压时间型馈线自动化配合的原理,可以避免在分支线故障时造成全线短暂停电。结合实例说明了所建议的故障处理过程。To coordinate the relay protection with the distribution automation system （DAS）, the probability and strategy of multi-grade protection are discussed. For time-grading cooperation depending on time delay, the approaches are divided into two classes according to different operation mechanisms, driving technology and fault detection algorithms. The centralized fault allocation and restoration modes based on relay protection and distribution automation are discussed. The setting principles of two-grade time-grading protection and three-grade time.grading protection are suggested. The hybrid approach of multi-grade protection and distribution automation system for centralized fault allocation and restoration is proposed. The way to combine multi-grade protection with voltage-time type feeder automation is suggested, which can avoid the whole feeder outage due to any fault on a branch. Examples are given to exptain the proposed ideas.

关 键 词：配电网 配电自动化 馈线自动化 继电保护 整定 故障恢复 

分 类 号：TM76[电气工程—电力系统及自动化]