电力系统自动化2012，Vol.36Issue(7)：81-85,5.
基于动态短路电流计算的继电保护定值在线校核系统
On-line Verification System for Relay Protection Settings Based on Dynamic Short-circuit Current Calculation
摘要
Abstract
Dynamic short-circuit current computing method（DSCCCM） is obtained based on transient simulation.The advantages of DSCCCM are pointed out by comparing the difference on grid model processing between static impedance equivalent method and DSCCCM.The on-line verification system of relay protection settings is built based on the design of DSCCCM.The true current operation state of the power grid is gained from energy management system.The short-circuit currents throughout the system are automatically calculated with the transient simulation calculation of different fault situations,achieving on-line relay setting real-time verification calculation.By comparing with the current relay settings,the security risks are pre-warned.The implementation plan and specific functions of on-line verification system of relay settings are elaborated.The application of the proposed system in North China Power Grid is introduced.关键词
继电保护/定值整定/在线校核/在线预警/动态短路电流计算Key words
relay protection/value setting coordination/on-line verification/on-line warning/dynamic short-circuit current calculation分类
信息技术与安全科学引用本文复制引用
毕兆东,王宁,夏彦辉,刘蔚,刘一民,徐彭亮..基于动态短路电流计算的继电保护定值在线校核系统[J].电力系统自动化,2012,36(7):81-85,5.基金项目
国家电网公司科技项目 （）
