Brake Current Control System Modeling Using Linear Quadratic Regulator (LQR) and Proportional integral derivative (PID)

Anggara Trisna Nugraha (Marine Electrical Engineering, Shipbuilding Institute of Polytechnic Surabaya, Surabaya, INDONESIA)
Oktavinna Dwi Pratiwi (Marine Electrical Engineering, Shipbuilding Institute of Polytechnic Surabaya, Surabaya, INDONESIA)
Reza Fardiyan As’ad (Marine Electrical Engineering, Shipbuilding Institute of Polytechnic Surabaya, Surabaya, INDONESIA)
Vijay Anant Athavale (Walchand Institute of Technology, Solapur, INDIA)

Indonesian Journal of electronics, electromedical engineering, and medical informatics
Vol 4 No 2 (2022): May

This paper provides a comparative analysis between PID control as a classical control technique and modern control technique in the dinamometer Eddy current brakes system. Eddy current brakes is a modern braking system that requires a control system to support the braking performance. PID control is often used to be implemented but in some conditions it is less optimal. Therefore, it is necessary to develop a modern and optimal control, such as a full state feedback Linear Quadratic Regulator (LQR). The comparison of the braking time responses were simulated using Matlab/Simulink. The simulation results show that the response of LQR control is better than the PID, with Ts = 2.12 seconds, Tr = 1.18 seconds, and without overshoot. On the other side, PID control, although having Ts = 0.27 seconds and Tr = 0.18 seconds, there is still an overshoot about 0.7%.