直接转矩控制中基于模糊推理的相位补偿

基于数字信号处理器ＴＭＳ３２０Ｆ２４０给出了一个动态的模糊预测电流补偿的方法，针对感应电机提高了直接转矩控制的低速性能，引入了一种模糊控制方法来补偿ＰＷＭ信号中由死区和芯片延时引起的相位误差，根据电流的幅值与方向，结合瞬时电压，采用模糊推理对相位误差进行补偿，可以在一定程度上提高控制的性能，仿真与实验结果表明的这种方法是可行的。

Phase Compensation for Direct Torque Control Based on Fuzzy Inference

This paper presents a method for dynamic prediction of current compensation based on a digital signal processor (DSP) TMS320F240. By taking into account the enhancement of the direct torque controlled low speed performance by the induction motor, a fuzzy control method is introduced to compensate for the phase error in the pulse width modulated (PWM) signal the dead time and IC delay. Fuzzy logic is adopted to compensate for the phase error according to the current amplitude and direction as well as the transient voltage, thereby enhancing the control performance in a definite degree. Simulation and experimental results show that the system proposed is feasible.