电力系统保护与控制Issue(2)：93-96,4.
云广直流晶闸管失效原因分析与控制保护逻辑优化研究
Analysis of thyristor failure event and logic optimization controlling and protection in Yun-Guang Project
刘涛 1赵晓斌 1李凌飞 1李岩1
作者信息
- 1. 南方电网科学研究院有限责任公司，广东 广州 510080
- 折叠
摘要
Abstract
Thyristor failure event occurred after Ultra HVDC island commissioning on April 23, 2012. This paper analyzes the reason of thyristor failure, introduces the process of the emergency shutdown and block of controlling and protection, and points out the controlling and protection logic problems. The logic optimization solutions are proposed and EMTDC and RTDS simulations are carried out. Simulation results verify the validity and correctness after the optimization of bypass switch closing. Optimization program has been widely implemented in the Yun-Guang and Nuozhadu Ultra HVDC controlling and protection system. The optimization scheme has played an active role in the end of project commissioning process, and the thyristor failure caused by the island bipolar block test never occurred.关键词
孤岛运行方式/晶闸管/控制保护/双极闭锁/仿真Key words
islanded mode/thyristor/controlling and protection/bipolar block/simulation分类
信息技术与安全科学引用本文复制引用
刘涛,赵晓斌,李凌飞,李岩..云广直流晶闸管失效原因分析与控制保护逻辑优化研究[J].电力系统保护与控制,2014,(2):93-96,4.
