Advanced Control Techniques for PMSM and BLDC Drives

Abstract

Permanent Magnet Synchronous Motors (PMSMs) and Brushless DC (BLDC) motors are widely used in modern industrial applications, electric vehicles, and robotics due to their high efficiency, compact size, and high torque-to-weight ratio. The performance of these motors is largely determined by the control strategy applied. Traditional control techniques, such as scalar control, have limitations in dynamic performance and torque accuracy. Therefore, advanced control strategies, including Field-Oriented Control (FOC), Direct Torque Control (DTC), Model Predictive Control (MPC), and Adaptive Control, are increasingly employed to improve motor performance under varying operating conditions. This paper reviews recent advancements in control techniques for PMSM and BLDC drives, analyzes their benefits and challenges, and compares their performance through simulation and experimental studies. Additionally, implementation aspects and future research directions are discussed to aid researchers and engineers in designing efficient motor drive systems.

KEYWORDS: PMSM, BLDC, Field-Oriented Control, Direct Torque Control, Model Predictive Control, Adaptive Control, Motor Drives