华电技术 ›› 2012, Vol. 34 ›› Issue (10): 46-48.

• 技术交流 • 上一篇    下一篇

电压频率对复压记忆过流保护的影响分析

包明磊,刘小波,刘万斌   

  1. 国电南京自动化股份有限公司,江苏南京211100
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-10-25

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

BAO Minglei, LIU Xiaobo, LIU Wanbin   

  1. Guodian Nanjing Automation Company Limited, Nanjing 211100, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2012-10-25

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。

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

Abstract:

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.

Key words: self-shunt excitation generator, composite-voltage memory over-current protection, voltage tracking over-current protection, sampled value emendation, frequency