Performance Enhancement of BLDC Motors through Adaptive Speed Control

Abstract

In the modern era, the growing demand for electricity calls for more efficient and reliable operation of electrical devices. This project presents the development of a novel Brushless DC (BLDC) motor system, offering enhanced performance compared to traditional motors. BLDC motors function by electronically inverting the stator and rotor configuration found in permanent magnet DC motors, operating with a rectangular waveform supply. A key benefit of the BLDC motor is the elimination of brushes, which significantly reduces maintenance and enhances durability. Furthermore, the rectangular interaction between current and magnetic flux enables the generation of higher torque. The hardware implementation of this motor system demonstrates its effectiveness, with speed control managed by a Proportional-Integral (PI) controller. This control strategy helps suppress torque and speed oscillations, ensuring precise and stable operation from low to high speeds. BLDC motors play a vital role in today’s industrial applications due to their high efficiency, reliability, and cost-effectiveness. Their evolution reflects major advancements in motor technology, offering practical solutions for modern engineering challenges.