Sensorless Predictive Control of SPMSM driven Light EV Drive using Modified Speed Adaptive Super Twisting Sliding Mode Observer with MAF-PLL

In this project, a modified higher order sliding mode observer (SMO) based position sensorless predictive current control for wide range speed operation of an SPMSM driven light EV. For reducing chattering and singularity phenomenon in conventional SMO, a modified speed adaptive super twisting SMO (SASTSMO) with moving average filter phase locked loop (MAF-PLL) is deployed to accurately estimate the position and speed of SPMSM. Moreover, optimal switching pulses are provided to a voltage source inverter using time delay compensated finite control set - model predictive current controller, eliminating the need of PI controllers and modulators. Simulated performance of control scheme is presented in MATLAB Simulink using an SPMSM EV drive. It is observed that this method allows seamless Sensorless operation at 3.95% of rated speed.

Keywords: FCS-MPC, Permanent Magnet Synchronous Motor, PLL, Sensorless Control, Sliding Mode Observer