基于PSCAD/EMTDC的直接转矩控制仿真研究  

Simulation Research on Direct Torque Control with PSCAD/EMTDC

作　　者：邵楠楠[1] 李勇[1] 

机构地区：[1]上海船舶运输科学研究所,上海200135

出　　处：《上海船舶运输科学研究所学报》2014年第2期26-31,共6页Journal of Shanghai Ship and Shipping Research Institute

摘　　要：直接转矩控制系统(DTC)是针对异步电动机发展起来的一种高性能交流调速系统,利用电磁暂态仿真程序(EMTDC)研究其动态性能具有独特的优势。运用PSCAD/EMTDC仿真工具,构建了圆形磁链轨迹的直接转矩控制仿真模型。通过与C语言进行混合编程,建立了扇区判断和开关选择自定义模块,用于选择恰当的电压空间矢量,实现对逆变器的控制。仿真结果表明,异步电动机的直接转矩控制具有良好的速度响应。Direct torque control （DTC） has been developed for induction motors to achieve high-performance speed control. The software Electromagnetic Transient in DC System （EMTDC） has special advantages in studying the dynamic performance of DTC. The simulation model of circular flux linkage DTC is developed with the simulation tool PSCAD/EMTDC. The custom made models for sector determination and switch table selection are built with C language and linked to the PSCAD/EMTDC software in order to choose the appropriate voltage space vector to control the inverter. Simulation results show that the circular flux linkage DTC has a good speed response.

关 键 词：三相异步电动机 圆形磁链轨迹 直接转矩控制 PSCAD EMTDC 

分 类 号：TM343.2[电气工程—电机]