Sainstech Nusantara
Vol. 2 No. 2 (2025): May 2025

System Optimization Using LQR and LQT Methods on 42D29Y401 DC Motor

Nugraha, Anggara Trisna (Unknown)
Akhmad Azhar Firdaus (Unknown)
Rama Arya Sobhita (Unknown)
Zaki Wicaksono (Unknown)



Article Info

Publish Date
30 May 2025

Abstract

Control systems are critical for managing, commanding, and regulating the behavior of dynamic systems. A DC motor converts direct current electrical energy into kinetic energy, requiring positive and negative voltage terminals for operation. Due to their ease of control across wide speed ranges, DC motors are widely applied in various industrial sectors. Speed regulation is typically achieved using control devices tailored to specific system requirements. To optimize DC motor performance, this study employs mathematical modeling and control strategies using MATLAB software. The 42D29Y401 DC motor is modeled and simulated using the Linear Quadratic Regulator (LQR) and Linear Quadratic Tracking (LQT) methods. Simulation results show that the first-order DC motor achieved a stable step response with an amplitude of 3.40, a rise time of 3.11 seconds, and minor overshoot and undershoot values of 0.501% and 1.98%, respectively. The LQR-optimized system improved performance with an amplitude close to 1, a faster rise time of 1.1 seconds, and reduced overshoot and undershoot at 0.505%. Comparatively, the LQR-based system demonstrated better overall performance than the unoptimized model, while the LQT-based system yielded the highest level of performance among all configurations.

Copyrights © 2025






Journal Info

Abbrev

sainstech

Publisher

Subject

Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering

Description

The journal publishes original papers that cover, but are not limited to, the following topics: Mechanical Engineering Chemical Engineering Electrical Engineering Civil Engineering Chemistry Energy Transportation Computer Science Physic Material ...