Control of JY-09B-2 AC Motor Using Open Loop and Closed Loop Systems

Abstract

In this era of rapid technological development, innovation in engineering is increasingly dominating various industrial sectors. One crucial approach to improving system performance is through optimization, which aims to achieve optimal system conditions in terms of both efficiency and stability. System optimization is not limited to improving energy efficiency but also involves precise dynamic control, such as in the AC motor system of the JY-09B-2 type, which is widely used in industrial and robotic applications due to its fast dynamic response and stable torque. This study analyzes the performance comparison between open-loop and closed-loop control systems in the JY-09B-2 AC motor. The open-loop system was tested with a constant voltage supply without feedback, while the closed-loop system utilized an encoder sensor as speed feedback combined with a PID (Proportional-Integral-Derivative) controller to correct errors. The experimental results show that the closed-loop system can reduce steady-state error by up to 90% compared to the open-loop system, as well as improve resistance to load disturbances (load disturbance rejection). However, the open-loop system remains superior in terms of implementation simplicity for applications that do not require high precision. This study provides guidance on selecting the optimal control strategy based on application requirements.