| 引用本文: | 刘 琨,董新洲,薄志谦.适用于配电线路无通道保护的备用电源自动投入装置[J].电力自动化设备,2013,33(6): |
| LIU Kun,DONG Xinzhou,BO Zhiqian.Automatic switchover device adaptive to distribution line non-communication protection[J].Electric Power Automation Equipment,2013,33(6): |
|
| 摘要: |
| 根据配电线路无通道保护的特点，设计了新型备自投低压模块的启动判据和动作时间，使非故障失电线路区段的供电恢复时间最大限度减小；在投入到永久性故障再次断开时，备自投的一合一开2次扰动为对侧保护的过电流加速（AOC）模块在加速时间窗内提供电流变化量，可以从电源侧加速切除故障。实时数字仿真实验验证了整套方案的有效性。 |
| 关键词: 配电线路 无通道保护 备用电源自动投入装置 继电保护 仿真 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（50937003，51007045， 51120175001）；北京市自然科学基金资助项目（3102017） |
|
| Automatic switchover device adaptive to distribution line non-communication protection |
|
LIU Kun1, DONG Xinzhou2, BO Zhiqian3
|
|
1.Electric Power Dispatching and Control Center of Guangdong Power Grid，Guangzhou 510600，China;2.Department of Electrical Engineering，Tsinghua University，Beijing 100084，China;3.ALSTOM Grid Co.，Stafford ST174LX，UK
|
| Abstract: |
| According to the characteristics of non-communication protection for distribution line，the startup criterion and operation time of UV（Under Voltage） module are redesigned for a new kind of automatic switchover device to minimize the power recovery time. When the automatic switchover device responds to a permanent fault，two disturbances caused by its close and open operations induce the current variation within the speed-up time window of the AOC（Accelerated Over-Current） module of the protection at opposite side，which accelerates the removal of fault at source side. Real-time digital simulation verifies the effectiveness of the proposed scheme. |
| Key words: distribution line non-communication protection automatic switchover device relay protection computer simulation |
