摘要
为了改善永磁同步电机直接转矩控制系统的控制性能,提出将直接转矩控制与线性-滑模变结构控制相结合的策略,分别采用转矩、磁链线性-滑模混合型控制器取代了传统直接转矩控制中的滞环或PI控制器,该控制器通过调节增益实现线性控制与滑模开关控制的平衡关系。仿真及实验结果表明,这种控制策略不仅保留了线性控制响应快的特点,同时使系统具有强的鲁棒性,减小了磁链及转矩脉动,系统的动态、静态品质优良。
In order to improve the dynamic quality of permanent magnet synchronous machine drives system based on the direct torque control method, a direct torque and linear sliding-mode variable structure control of PMSM drives was presented. The drive employed two new controllers, which to replace conventional hysteresis controllers, to improve response of the drive and to reduce the impulsive motion of the torque and flux by regulation the gain balance between the linear and nonlinear sliding-mode. Simulation and experiments show that the quick response ability of linear control is preserved. The chattering of the flux and torque is restrained obviously. The whole system has good dynamic and static performance.
出处
《电气传动》
北大核心
2014年第5期35-39,共5页
Electric Drive
关键词
永磁同步电机
线性-滑模控制
变结构控制
直接转矩控制
permanent magnet synchronous motor （PMSM）
linear-sliding control
variable structure control
direct torque control
