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Research Article

The Speed Control of BLDC and Induction Motors Using PID and Pulse Width Modulation

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Abstract

In the context of rapid industrial growth, the demand for high-precision and robust motor control systems has become increasingly critical. Electric motors, particularly DC motors, are extensively used in various mechanical and industrial applications due to their high torque, compact size, and energy efficiency. Among available control techniques, Pulse Width Modulation (PWM) is commonly used for regulating motor speed by converting AC input to DC via a diode bridge rectifier. This study introduces a hybrid control approach that combines PWM and Proportional–Integral–Derivative (PID) techniques for controlling Brushless DC (BLDC) and AC induction motors. The research is structured into two main components: the first part implements PWM to control the speed of a BLDC motor, while the second uses a PID-controlled DC motor to regulate the operation of an AC induction motor. MATLAB/Simulink was employed to model, simulate, and analyze the proposed control systems. Hardware-level simulation results demonstrate the effectiveness of the control approach. The microprocessor dynamically adjusts PWM duty cycles to precisely manage BLDC motor speed. The control system comprises an 8051 microcontroller, a gate driver circuit (based on the IR2110 high-voltage MOSFET driver), and IRF540N N-channel MOSFETs operating at up to 100 kHz switching frequency. These components ensure fast, efficient, and reliable switching behavior aligned with the motor's voltage and current requirements. Performance analysis indicates substantial improvements in speed control accuracy, system response time, and dynamic stability across both motor types. The novelty of this work lies in the unified application of PID and PWM control strategies to both BLDC and induction motors, demonstrating a flexible and scalable solution suitable for advanced motor drive systems in automation and industrial environments.

Keywords:

BLDC Induction Motors PID Speed Control

Article information

Journal

Scientific Journal of Engineering, and Technology

Volume (Issue)

1(2), (2024)

Pages

24-32

Published

01-11-2024

How to Cite

Mohammed, O. K., Hameed, D. W., & Jasim, H. A. (2024). The Speed Control of BLDC and Induction Motors Using PID and Pulse Width Modulation. Scientific Journal of Engineering, and Technology, 1(2), 24-32. https://doi.org/10.69739/sjet.v1i2.27

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