| 引用本文: | 董新洲,曹润彬,崔柳,等.现代电力系统集成后备保护方案[J].电力系统保护与控制,2014,42(5):21-25.[点击复制] |
| DONG Xin-zhou,CAO Run-bin,CUI Liu,et al.Integrated backup protection scheme in modern power system[J].Power System Protection and Control,2014,42(5):21-25[点击复制] |
|
| 摘要: |
| 后备保护不可或缺，特别作为相邻设备的远后备保护功能尤为重要。由于距离保护仅仅依赖本地信息构成，容易实现且性能稳定，因此，所有高压输电线路都把距离保护作为后备保护。遗憾的是，后备保护在大停电过程中所起的作用是消极的，可以说它导致了电网连锁跳闸。因此，有必要重新认识后备保护的作用及其构成方式。提出了一种集成后备保护方案，它把同一个变电站所有被保护设备的后备保护集成在一个装置或者系统中，而所有设备的保护只包含主保护功能。这样的方案有利于构成性能完善的后备保护方案，也可以有效减小大停电的范围。 |
| 关键词: 继电保护 输电线路 后备保护 距离保护 集成式后备保护 |
| DOI：10.7667/j.issn.1674-3415.2014.05.004 |
| 投稿时间：2014-01-07 |
| 基金项目:国家自然科学基金重大国际合作项目（51120175001）；国家自然科学基金重点项目（50377019）；国家自然科学基金青年基金项目（51107062）；国网智能配电网自愈控制技术研究与开发科技项目 |
|
| Integrated backup protection scheme in modern power system |
| DONG Xin-zhou,CAO Run-bin,CUI Liu,WANG Bin,SHI Shen-xing,Dominik Bak,Brian Kirby,YANG Xia |
| (State Key Lab of Power Systems Department of Electrical Engineering, Tsinghua University, Beijing 100084, China;Alstom Grid Ltd, Stafford, ST174LX, UK;Alstom Grid Ltd, Shanghai 200245, China) |
| Abstract: |
| Backup protection is indispensable, particularly as a remote backup protection of neighboring devices. Since the distance protection only depends on local information, which is easy to implement and has stable performance, distance protection is regarded as backup protection of transmission lines. Unfortunately, the backup protection has played a negative role during the blackouts, and sometimes caused the cascading tripping. Therefore, it is necessary to re-recognize the role and the scheme of backup protection. This paper presents an integrated backup protection scheme, which integrates all backup protection of equipments in the same substation in one device or system. And all protections to equipment only contain the main protection. Such scheme can constitute backup protection with better performance and effectively reduce the scope of the blackout. |
| Key words: protective relay transmission line backup protection distance protection integrated backup protection |
