华电技术 ›› 2011, Vol. 33 ›› Issue (7): 28-29.

• 研究与开发 • 上一篇    下一篇

中、低压母线微机的不完全电流差动保护分析

张澄宇,杨国泉   

  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:2011-07-25 发布日期:2011-07-25

Analysis on incomplete current differential microcomputer protection for medium and low voltage busbar

ZHANG Chengyu, YANG Guoquan   

  1. Guodian Nanjing Automation Corporation Limited, Nanjing 211100, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-07-25 Published:2011-07-25

摘要: 针对中、低压母线系统的特点,分析了此系统母线保护实现的难点,比较分析了完全电流差动和不完全电流差动2种方案的差别,通过保护装置各自的模拟通道和数据采集变换,分别进行了保护配置、算法选择和整定计算,提出了不完全电流差动的完整解决方案。

关键词: 完全电流差动, 不完全电流差动, 母线保护, 整定计算, 解决方案

Abstract: Aiming at the features of medium and low voltage busbar system, the difficulties in implementation of busbar protection for this system were analyzed. The differences between the complete current differential protection scheme and the incomplete current differential protection scheme were analyzed and compared. Based on data acquisition and transformation through the analog channel of each protection device, the protection configuration, algorism selection and setting calculation were carried out respectively; and a complete solution for incomplete current differential protection was put forward.

Key words: complete current differential protection, incomplete current differential protection, busbar protection, setting calculation, solution