中国电力2017，Vol.50Issue(9)：72-76,5.DOI:10.11930/j.issn.1004-9649.201607042
渝鄂直流背靠背联网工程最后断路器跳闸功能配置
Configuration of Last Breaker Trip Function for Chongqing-Hubei Back-to-Back HVDC Project
张群 1赵倩 1郝俊芳 1严兵 1陈朋 1孔令凯1
作者信息
- 1. 许继电气股份有限公司,河南许昌461000
- 折叠
摘要
Abstract
The removal of all AC lines and load shedding of inverter station in flexible HVDC system will cause overvoltage at the DC side and other parts in inverter station,which may endanger the safety of primary equipment.Therefore,the configuration of last breaker trip function in inverter station is very necessary.In this paper,based on the Chongqing-Hubei back-to-back HVDC project,a coniguration scheme of last breaker trip function for flexible HVDC system is proposed,and is verified by RT-LAB real-time simulation platform which is integrated to the control and protection system and operators monitoring system.The results show that the configuration of last breaker trip function can ensure the locking of converter valves before tripping of the AC circuit breaker or before the DC voltage increasing to the protective setting value so as to avoid serious overvoltage at both AC and DC sides.关键词
柔性直流/最后断路器/过电压及保护/RT-LAB/实时仿真Key words
flexible HVDC/last breaker/overvoltage and protection/RT-LAB/real-time simulation分类
信息技术与安全科学引用本文复制引用
张群,赵倩,郝俊芳,严兵,陈朋,孔令凯..渝鄂直流背靠背联网工程最后断路器跳闸功能配置[J].中国电力,2017,50(9):72-76,5.
