电力系统非全相振荡时最大断口电势的计算  

Maximum open-circuit potential calculation of non-full phases swings in power system

作　　者：禹成七[1] 龚仁敏[1] 张永浩[1] 李东 

机构地区：[1]华北电力大学电力工程系,河北保定071003 [2]神头第二发电厂,山西朔州038500

出　　处：《华北电力大学学报（自然科学版）》2003年第1期1-4,共4页Journal of North China Electric Power University：Natural Science Edition

摘　　要：提出了计算电力系统非全相振荡时最大断口电势的简便方法。考虑到电网接线的影响,综合利用发电机分群原理及二端口混合参数方程,推导出与分群结果无关的一种新的断口电势计算公式。对复杂环网非全相振荡时最大断口电势计算的算例表明,该方法有效且满足实际电网整定计算的要求。A simple method for calculating maximum open-circuit potential was presented when power system was in the non-full phases and swings operation. Based on grouping theorem for generators and hybrid equation of two-port, the procedure to calculate open-circuit potential considering electric network structure was deduced, which is independent of the result of grouping generators. It meets the requirements of relay setting through a calculated example in complex ring net.

关 键 词：电力系统 非全相振荡 最大断口电势 计算 整定计算 暂态稳定 电网 继电保护 

分 类 号：TM712[电气工程—电力系统及自动化] TM77