继电保护整定管理系统在武钢电网中的应用

来源期刊：冶金自动化2009年第4期

论文作者：刘玉兰 徐军 李凌宇

文章页码：44 - 47

关键词：继电保护； 整定计算； 线路保护； 灵敏性； 选择性

Key words：relay protection； setting calculation； line protection； sensitivity； selectivity

摘    要：电网继电保护整定值的合理准确计算对电力系统安全稳定运行起着极为重要的作用。继电保护故障分析整定管理及仿真系统为武钢电网继电保护整定计算的准确有效性提供了保障。本文应用继电保护整定管理系统计算线路保护整定值。整定过程中,考虑本级保护与其后备保护能同时满足灵敏性、选择性的要求,使得继电保护整定计算全局性更强。算例表明,整定值能够满足现场需求,提高了线路保护的正确动作率,为武钢创造了巨大的经济效益。

Abstract: Reasonable and accurate calculation of grid relay protection setting value is very important for safe and stable operation of power system.Relay protection fault analysis setting management and simulation system provides guaranty for accurate and effective calculation of relay protection setting value in grid of WISCO.Line protection setting value was calculated by use of relay protection setting management system.In setting process,it is considered that both current protection and standby protection can meet the requirement of sensitivity and selectivity.Overall importance of relay protection setting calculation was enhanced.Case study shows that setting value can meet the need of spot,true operation rate of relay protection was improved,and large economic benefits were obtained.