电压频率对复压记忆过流保护的影响分析  

Analysis on influence of voltage frequency on composite-voltage memory over-current protection

作　　者：包明磊[1] 刘小波[1] 刘万斌[1] 

机构地区：[1]国电南京自动化股份有限公司,江苏南京211100

出　　处：《华电技术》2012年第10期46-48,51,共4页HUADIAN TECHNOLOGY

摘　　要：针对小容量自并励机组在系统远方故障甩负荷时复压记忆过流保护的动作情况,分析了电压频率变化对复压记忆过流保护的影响,介绍了采样点修正法和电压跟踪式过流保护原理,提出了相应的解决方案。Aiming at the action situation of the composite-voltage memory over-current protection of the self-shunt excitation generator set with medium or small capacity during the power system load rejection caused by remote fault,the influence of the variation of the voltage frequency on the composite-voltage memory over-current protection was analyzed.The principles of sampled value emendation and the voltage tracking over-current protection were introduced,and relevant solution was proposed.

关 键 词：自并励发电机 复压记忆过流 电压跟踪式过流 采样点修正 频率 

分 类 号：TM774[电气工程—电力系统及自动化]