用等值解耦模型计算12相同步整流发电机短路电流  

Short Circuit Current Calculation of Twelve-phase Synchronous Rectifier Generator Using Equivalent and Decoupling Model

作　　者：吴大立[1] 徐正喜[1] 郑中祥[1] 李文华[1] 姜波[1] 

机构地区：[1]武汉第二船舶设计研究所,武汉430064

出　　处：《高电压技术》2010年第4期1050-1054,共5页High Voltage Engineering

摘　　要：各数字仿真软件尚未开发出12相同步发电机的模型,不能直接满足相关系统的计算需求。为此,对现有12相同步整流发电机短路电流计算方法进行讨论并指出了其不足,提出通过适当的等值与解耦处理方法将12相同步发电机等效为4台三相同步发电机,并利用电磁暂态分析软件PSCAD/EMTDC中的通用元件建立了12相同步整流发电机短路电流计算模型。数字仿真表明等值解耦方法的正确性,与短路试验结果的对比校核也证明了该模型的计算精度能满足实际工程的要求,该模型的建立为含有该类发电机的电力系统的研究与设计工作奠定了良好的基础。Present short circuit current calculation methods of twelve-phase synchronous rectifier generator were discussed and their shortcomings were pointed out. A proper equivalent and decoupling method was proposed to make a twelve-phase synchronous generator be equivalent to four three-phase synchronous generators. Then,short circuit current calculation model of twelve-phase synchronous rectifier generator using general components in PSCAD/EMTDC was established. The result of digital simulation proves the equivalent and decoupling method is valid and check test compared with short circuit experiment also verify that the calculation precision can meet project requirements.

关 键 词：12相同步发电机 整流发电机 短路电流计算 数学模型 数字仿真 PSCAD/EMTDC 

分 类 号：TM31[电气工程—电机]