Direct Current (DC) motors are fundamental components in various industrial and automation systems, valued for their precision and controllability. Traditional control methods, such as Proportional-Integral-Derivative (PID) controllers, often require robust mathematical models and are susceptible to performance degradation under non-ideal conditions. This study investigates the implementation of Fuzzy Logic Controllers (FLC) for real-time DC motor position control, with a focus on analyzing the impact of different derivative approaches. To construct a comprehensive mathematical model of the DC motor system, both white-box and black-box system identification approaches were employed. The white-box method utilized physical principles of the motor, while the black-box method relied on empirical input-output data. The Transfer Function-Based Derivative (TFD) and Second-Order Filtered Derivative (SOFD) techniques are evaluated for their maintaining system responsiveness. A test setup utilizing an STM32F4 discovery kit was developed, and the performance of both derivative approaches was compared using a repeating stair sequence as the reference input. The experimental results showed that both techniques performed successfully, but the SOFD method demonstrated a more effective error reduction. The findings offer insights into derivative filtering techniques, highlighting the benefits of incorporating advanced filtering strategies in FLC-based control systems.
| Primary Language | English |
|---|---|
| Subjects | Control Theoryand Applications |
| Journal Section | Research Article |
| Authors | |
| Submission Date | November 28, 2024 |
| Acceptance Date | March 3, 2025 |
| Early Pub Date | August 31, 2025 |
| Publication Date | September 1, 2025 |
| DOI | https://doi.org/10.21597/jist.1592544 |
| IZ | https://izlik.org/JA59RX62XB |
| Published in Issue | Year 2025 Volume: 15 Issue: 3 |