摘要
在分析交流异步电动机数学模型的基础上,结合三电平中点钳位逆变器(NPC)输出谐波含量低、控制性能好等优点,论述了一种基于三电平的交流异步电动机直接控制的仿真建模方法。在Matllab/Simulink中建立独立的功能模块,搭建交流异步电动机直接转矩控制系统的仿真模型。仿真结果证明了该方法的合理性、有效性。
Three -level neutral -point -champed （NPC） inverter was used in medium- voltage adjustable speed drive applications. In this paper, based on the mathematical model of AC asynchronism motor, a method for modeling and simulation of the three - level DTC system was presented in Matlab/Simulink, and the independent functional blocks were modeled. The reasonability and validity were testified by the simulation results and this method offered a new thought for designing and debugging actual motors.
出处
《微特电机》
北大核心
2007年第3期39-42,共4页
Small & Special Electrical Machines
关键词
交流异步电动机
仿真建模
三电平逆变器
直接转矩控制
AC asynchronism motor
modeling and simulatiou
three- level inverter
direct torque control
