机构地区: 中国南方电网
出 处: 《南方电网技术》 2008年第4期101-103,共3页
摘 要: 介绍了高压直流线路保护常见配置,分析了国内三大直流保护配置。天广直流投运初期行波保护动作频繁,经修改动作条件后,没有再发生误动和拒动。并提出了目前直流线路保护优化的建议。 Common configuration schemes of DC line protection scheme are introduced. Protection schemes of three DC projects in our country are analyzed. Travelling wave protection in Tian-Guang HVDC system frequently mis-acted soon after put into operation. After a revision on action conditions, mis-action and refusion no longer occurred therefore. Suggestions for HVDC line protection scheme and optimization are proposed.
领 域: [电气工程]