摘要
本文提出了一种新的趋近率用于永磁同步电机的变结构直接转矩控制。该趋近率按指数和加速度两种速率趋向滑模面,解决了滑模控制中的高频抖振问题,并提高了趋近速度,并建立了矩阵变换器供电的永磁同步电机变结构直接转矩控制系统。利用双空间矢量调制策略获得了较小的转矩脉动和恒定的开关频率,同时保持了传统直接转矩控制优良的动静态性能。
A new reaching law of variable structure control strategy was presented, and combined with the double space vector modulation strategy and direct torque control technique, the variable structure controlled direct torque control system of PMSM fed by matrix converter is implemented. Simulation results show that the system can reduce the torque ripple and the distortion of input current, and preserves the good dynamic and static performance of classic direct torque control.
出处
《大电机技术》
北大核心
2013年第4期34-37,共4页
Large Electric Machine and Hydraulic Turbine
