电网技术Issue(9)：2615-2620,6.
含微网的智能配电网故障自愈过程中操作过电压特征
Characteristics of Switching Overvoltage in Smart Distribution Network Containing Microgrid During Fault Self-Healing Process
蔡静文 1胡军 1何金良 1张若兵 2殷禹3
作者信息
- 1. 电力系统及发电设备控制和仿真国家重点实验室 清华大学，北京市 海淀区 100084
- 2. 清华大学深圳研究生院，广东省 深圳市 518055
- 3. 中国电力科学研究院，北京市 海淀区 100192
- 折叠
摘要
Abstract
To research the faults, which is capable of self-healing, occurred in smart distribution network containing microgrid and the characteristics of switching overvoltage during the fault self-healing process, based on the automatic network reconfiguration scheme after the short-circuit fault occurred in smart distribution network a microgrid unit model containing typical microsources and a distribution network system model containing microgrid unit are constructed on the platform of PSCAD/EMTDC to simulate the features of overvoltages throughout the system at the occurrence moments of five common short-circuit faults and during the post-fault self-healing process. Simulation results show that the maximum overvoltage reaches about 3.40 per-unit value and endangers the insulation, so that the protection devices are needed;as for most common single-phase earth fault occurred in distribution network, when the fault occurred at different monitoring positions the maximum overvoltage is approximately within the range from 2.3 to 2.7 per-unit value, which is available for reference to the insulation coordination of actual smart distribution network containing microgrid.关键词
微网/智能配网/配网自愈/操作过电压/PSCAD/EMTDCKey words
microgrid/smart distribution network/self-healing of distribution network/switching overvoltage/PSCAD/EMTDC分类
信息技术与安全科学引用本文复制引用
蔡静文,胡军,何金良,张若兵,殷禹..含微网的智能配电网故障自愈过程中操作过电压特征[J].电网技术,2013,(9):2615-2620,6.
