摘要
针对传统直接转矩控制系统低速时电机转矩和转速波动大的不足,设计了复合滑模直接转矩控制器,该控制器由一积分切换的自适应滑模控制器并联积分环节构成。在Matlab/Simulink下分别建立了传统直接转矩圆形磁链轨迹控制模型和复合滑模直接转矩控制模型。仿真结果验证,与使用传统直接转矩控制算法相比较,该方法能提高系统鲁棒性,在相同仿真条件下转矩和转速的波动明显减小,从而证明了该方法的可行性。
The traditional DTC system was of high torque and velocity ripple at low speed, a complex sliding mode controller was proposed. The controller consisted of adaptive sliding mode based on integral switching and integral part. Based on Matlab/Simulink the traditional circular magnetic DTC model and complex sliding mode DTC model were established. The simulation results showed that the new controller improved robustness under the same simulation condition. The torque and velocity significantly reduced compared with the traditional DTC ,the effectiveness of the designed scheme was showed.
出处
《微特电机》
北大核心
2009年第2期56-58,共3页
Small & Special Electrical Machines
关键词
异步电动机
滑模变结构
直接转矩控制
asynchronous motor
variable structure sliding mode
direct torque control
