电网技术Issue(8)：2257-2262,6.DOI:10.13335/j.1000-3673.pst.2014.08.037
基于配电网原故障定位方案的分布式电源准入容量研究
Research on Allowed Penetration Level of DGs Based on the Traditional Fault Location Methods
郑涛 1贾仕龙 1潘玉美 2杨国生3
作者信息
- 1. 新能源电力系统国家重点实验室 华北电力大学，北京市 昌平区 102206
- 2. 国家电网山东电力检修公司，山东省 济南市 250000
- 3. 中国电力科学研究院，北京市 海淀区 100192
- 折叠
摘要
Abstract
To solve the problem that the traditional distribution network fault section location scheme isn’t applicable to the integration of the distributed generation (DG), a method by limiting DG’s access capacity to guarantee the traditional fault location methods available is proposed. Firstly, the traditional fault location methods and the calculation of fault current of DG are introduced; then the effect of DG on the traditional fault location methods is analyzed;the requirements, that the minimum short-circuit current provided by the system power source and the maximum reverse short-circuit current provided by DG should satisfy for the traditional fault location methods to apply to distribution network with DGs, are proposed, which mean that the maximum access capacity of DGs are restricted. Results of calculation example show that on the basis of calculation of fault current reasonable switch value could be set up to distinguish the minimum current provided by the system power source and the maximum current provided by DG, which ensure that traditional fault section location scheme is available. And comparation with other switch value setting methods suggest that the analysis method based on fault current calculation can improve the DG integration capacity or the power supply distance of the feeder.关键词
有源配电网/分布式电源/故障分析/故障定位/准入容量Key words
active distribution network/distribution generation/fault analysis/fault location/allowed penetration level分类
信息技术与安全科学引用本文复制引用
郑涛,贾仕龙,潘玉美,杨国生..基于配电网原故障定位方案的分布式电源准入容量研究[J].电网技术,2014,(8):2257-2262,6.
