中国电机工程学报2013，Vol.33Issue(1)：130-136,前插17,8.
含分布式电源配电网的相间短路故障分析
Analysis on the Distribution Network With Distributed Generators Under Phase-to-phase Short-circuit Faults
摘要
Abstract
The fault current of the distributed generators(DG) with voltage source converter (VSC) is determined by its control scheme. However, the traditional equivalent model for DGs didn't distinguish the DGs from common source. Thus, the effect of control scheme was neglected and this caused significant limitations on fault analysis of distribution network with DGs, especially in the case of unsymmetrical fault analysis. For this reason, this paper analyzed the control scheme and fault characteristics under phase-to-phase short-circuit faults, then put forward a voltage control current source equivalent model for DGs under positive sequence control. Based on this, the equations between the positive, negative sequence voltages of the point of common coupling (PCC) and DGs' currents were built. The solving equations for the positive voltage of PCC were built under different phase-to-phase short-circuits. Thus, the precise method for fault analysis under phase-to-phase short-circuit faults was obtained. A 10kV distribution network case was built in DIgSILENT and the proposed method was verified to be correct.关键词
分布式电源/配电网/等值模型/故障穿越控制/相间短路故障分析Key words
distributed generator (DG)/ distribution network/ equivalent model/ control scheme for fault ride-through/ analysis of phase-to-phase short-circuit faults分类
信息技术与安全科学引用本文复制引用
吴争荣,王钢,李海锋,潘国清,高翔..含分布式电源配电网的相间短路故障分析[J].中国电机工程学报,2013,33(1):130-136,前插17,8.基金项目
国家重点基础研究发展计划项目(973项目)(2009CB219704) （973项目）
粤港关键领域重点突破项目(2009A091300011) （2009A091300011）
广东省教育部产学研结合重点/重大项目(2011A090200127,2011A090200074) （2011A090200127,2011A090200074）
广东省自然科学基金(S2012010008355). （S2012010008355）
