三绕组变压器的双绕组等效建模及在Matpower中的应用  

Two winding transformer equivalent modeling for three winding transformer and its application for Matpower

作　　者：吴磊[1] 章坚民[1] 吕海灿 陆献传 

机构地区：[1]杭州电子科技大学自动化学院,浙江杭州310012 [2]国网新昌县供电公司,浙江新昌312500

出　　处：《机电工程》2015年第1期107-111,共5页Journal of Mechanical & Electrical Engineering

基　　金：国家电网公司科技资助项目(ZDK088-2012);浙江省自然科学重点基金资助项目(LZ12E07001)

摘　　要：针对实际电网存在着大量的三绕组变压器,但国际上一些著名商业软件,如BPA仿真软件、Matpower这一权威潮流计算开源软件,均只提供双绕组变压器模型,限制了其在具有三绕组变压器的电力系统中的应用的问题,潮流计算是自主开发的电力系统各种应用软件的核心模块,因此依托国际权威开源程序进行二次开发,是一种较好的选择。对Matpower要求的数据格式进行了归纳,对变压器的一般的等值电路及带理想变压器的等值电路和带标幺值的等值电路进行了分析研究,提出了三绕组变压器转换为双绕组等效模型的建模方法,使得原先只适应双绕组变压器的潮流计算软件可以适用于三绕组变压器电网的潮流计算;最后以Matpower软件为例进行了案例计算,并用PSASP仿真软件进行对比验证。研究结果证明,所提出的建模方法是有效的。Arming at the problem that there are a lot of three winding transformer In the actual power grid,but almost famous commercial software in this field including BPA simulation software and Matpower which was the most authority flow calculation open source power software both only provide double winding transformer model,limit its application in the power system with three winding transformer,power flow calculation was the core module of all kinds of application software of power system,so it was good choice to make the secondary development program rely on international authoritative source. The data format of Matpower requires was set,the equivalent circuit of transformer including three situations that in general,with ideal transformer,with per unit were researched and analyzed,the modeling method of equivalent mode which let three winding transformer be converted to a double winding was proposed,the above mentioned problem was solved. Finally,take Matpower software as examples,comparing with PSASP simulation software. The results indicate the modeling method is effectiveness.

关 键 词：三绕组变压器 双绕组变压器 等效 建模 开源程序 Matpower 潮流计算 PSASP 

分 类 号：TM761.1[电气工程—电力系统及自动化]