Speed Control of a PMSM for Three-Wheeler Electric Bajaj Using Integral Sliding Mode Control with Exponential Reaching law

Abstract

Electric vehicles (EVs) provide a potential solution for decreasing fossil fuel consumption and air pollution, thereby promoting sustainable transportation. However, optimizing energy efficiency and utilization remains a critical challenge. Permanent Magnet Synchronous Motors (PMSMs) are recognized for their superior efficiency compared to other electric drive systems, despite their complex control requirements. This thesis proposes an Integral-Sliding Mode Control (ISMC) with Exponential Reaching Law (ISMC-ERL) for PMSM drives in EVs to achieve robust speed regulation and eliminate chattering. The controller's performance was evaluated through MATLAB/Simulink simulations, considering speed tracking, load variations, and operation at different speeds. Comparative analysis with conventional SMC and PID controllers demonstrated the superior performance of ISMC-ERL, characterized by a rapid rise time of 0.0019 seconds, a settling time of 0.0032 sec, and a minimal overshoot of 1.67%