三电平逆变器直接转矩控制仿真分析

Simulation Analysis of Direct Torque Control of Induction Motor Fed by Three - level Voltage Source Inverter

对三电平逆变器直接转矩控制的基本原理,拓扑结构,控制原理,及控制策略进行了详细的分析,给出了一种结合三电平特性的异步电机数学模型,通过仿真验证了建立在该模型下的中点钳位式三电平逆变器直接转矩控制的良好动静态特性。

The basic principle, topology, the control principle, and the control strategy of the three - level voltage inverter direct torque control are discussed in detail. The mathematic model of the induction motor relation for three - level voltage inverter is given. The good astir condition characteristic of the three - level NPC inverter direct torque control is confirmed by simulation.