西安工程大学学报2019，Vol.33Issue(1)：69-73,5.DOI:10.13338/j.issn.1674-649x.2019.01.012
外加电压源配电网相间故障重合前无故障识别
Non-fault identification before interphase fault reclosing in distribution network with external voltage source
摘要
Abstract
Since the electrical information in the system is limited after the three-phase trip of the 10 kV distribution lines, the applied voltage source is injected to obtain more electrical characteristics. The circuit structure of distribution line changes after the interphase fault disappearance, which results in the 90° phase difference between voltage and current changes. According to this feature, a fault identification scheme is built before three-phase reclosure only by voltage and current. The results of modeling and simulation show that the proposed method can effectively identify the fault property and be basically unaffected by fault location and transition resistance, which has good applicability.关键词
配电网/外加电压源/相位差/相间故障/无故障识别Key words
distribution network/external voltage source/phase difference/interphase fault/non-fault identification分类
信息技术与安全科学引用本文复制引用
姚迪,邵文权,吴朝俊..外加电压源配电网相间故障重合前无故障识别[J].西安工程大学学报,2019,33(1):69-73,5.基金项目
陕西省自然科学基础研究计划一般项目(2018JM5068) （2018JM5068）
西安工程大学研究生创新基金(chx201820) （chx201820）
