分布式微电网的自调节接地故障自愈算法  

Self-Adjustment Algorithm of Self-Regulating Grounding Fault in Distributed Microgrid

作　　者：孙为兵[1] 吴志坚[1] 张丰丰 李培培[1] 贺琰[1] SUN Weibing;WU Zhijian;ZHANG Fengfeng;LI Peipei;HE Yan(State Power Grid Corp Jiangsu Electricpower Company Yangzhou Power Supply Company,Yangzhou 225009)

机构地区：[1]国网扬州供电公司

出　　处：《计算机与数字工程》2019年第11期2935-2938,共4页Computer & Digital Engineering

摘　　要：论文提出了一种分布式微电网(MGD)潮流分析的直接建模算法。通过等效驱动点(EDP)方法建立具有分支电流注入总线的微电网(MG)模型,分别给出了单线、双线和三线接地故障电流(GFC)分析。考虑了MG拓扑结构变化以及提出的自调节接地故障电流(GFC)模型自愈效果,使得所建立的算法易于编程。通过模拟IEEE-7和IEEE-30的MGD系统证明了论文所提出方法对故障分析具有高效的收敛性。This paper presents a direct modeling algorithm for distributed micro grid(MGD)power flow analysis.A microgrid(MG)model with branch current injection bus is established by equivalent driving point(EDP)method.The single line,double line and three wire grounding fault current(GFC)are analyzed respectively.Considering the change of MG topology and the self-healing effect of self regulating grounding fault current(GFC)model,the proposed algorithm is easy to program.By simulating the MGD system of IEEE-7 and IEEE-30,it is proved that the proposed method has high convergence for fault analysis.

关 键 词：微电网分布 潮流分析 故障电流分析 自调节接地故障 电网自愈 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]