PMSM Sliding Mode Control Based on A New Exponential Reaching Law

According to the internal system characteristics of PMSM, this paper improves on the traditional exponential convergence law by putting the state variables and S function into the isokinetic part, replacing the constants in the isokinetic part of the traditional exponential convergence law. After the experimental verification by MATLAB/Simulink, the method has good performance in improving the response speed and reducing the overshoot, and then the current loop is designed, and the method has obvious advantages compared with the previous current tracking effect.