【摘要】 分析了异步电动机直接转矩控制的基本原理,介绍了一种基于SIMULINK的异步电动机直接转矩控制系统的仿真方法.该方法包括编写S函数来实现异步电机磁链扇区的判断和逆变器开关矢量的选择,以及利用Simpowersystems基本模块库来实现功率部分的仿真.实例的仿真结果表明该方法简单有效,为直接转矩控制系统的进一步研究奠定了基础.更多还原

【Abstract】 It analyses the fundament of direct torque control(DTC),and presents a new simulated method of DTC based on simulink soft.It includes compiling S-function for estimating the flux sector of squirrel-cage AC machine and selecting the switching vector.using simpowersystems blocks simulates the power system.The result of an example simulation indicates simpleness and effectiveness of this method which establishes the fundament for next researching in DTC.更多还原