基于新型趋近律的PMSM-DTC无感控制

PMSM-DTC Non-Inductive Control Based On New Approach Law

在永磁同步电机直接转矩控制(PMSM-DTC)系统中,通常需要通过机械传感器获取转速及位置信息。然而,这种传感器的应用不仅增加了电机系统的成本,而且在复杂环境下难以有效运作。为解决上述问题,本研究引入了模型参考自适应算法,用于跟踪电机的转速和位置,从而实现了PMSM-DTC系统的无感控制。同时,本研究结合了滑模控制,并引入了一种新型的趋近律来改进模型参考自适应算法。通过在Matlab/Simulink中建立仿真模型进行验证,结果表明,所提出的基于新型趋近律的PMSM-DTC无感控制方法能够有效地跟踪电机的转速和位置,从而节约了电机系统的成本。

In the permanent magnet synchronous motor direct torque control(PMSM-DTC)system,the rotation speed and position information are usually obtained using mechanical sensors,but they occupy the cost of the motor and are difficult to work in complex environments.To address the above problems,this paper introduces a model reference adaptive algorithm is introduced to track the motor speed and position to achieve non-inductive control of the PMSM-DTC system.A new approach law is introduced in combination with sliding mode control to improve the model reference adaptation,and a simulation is built for verification.The results show that the PMSM-DTC non-inductive control based on the new reaching law used in this article can effectively track the motor speed and position,saving the cost of the motor.