Direct Torque Control of Permanent Magnet Synchronous Motors with Parameters: Uncertainties and Impulsive Effects

In this letter, the direct torque control of permanent magnet synchronous motors (PMSMs) with and impulsive effects is studied. The parameters variation in the system is considered. By Lyapunov method, the control conditions of asymptotical and exponential stability for PMSMs with parameters uncertainties have been derived after the uncertain matrixes which character the variable system parameters are formulated through matrix analysis. An illustrated example is also given to show the effectiveness of our results. Compared with the recent results, the obtained results exhibit some advantage.