Closed-loop pid control system for enhanced precision positioning of piezoelectric actuators

Precision positioning of piezoelectric actuators is essential for various applications, yet traditional control systems often struggle to overcome hysteresis, leading to inaccuracies. This study addresses this research gap by proposing a Closed-Loop PID Control System to enhance precision positioning capabilities while mitigating the effects of hysteresis. The problem statement revolves around the challenge of hysteresis in achieving desired positioning accuracy, underscoring the need for robust control mechanisms. The objectives are to design a control system capable of compensating for hysteresis and to achieve superior precision positioning. Arduino UNO is utilized for real-time implementation of the PID controller, while Matlab is employed for system modeling, simulation, and tuning, specifically targeting hysteresis compensation. The findings demonstrate that the PID controller effectively reduces the impact of hysteresis, resulting in significantly improved positioning accuracy compared to open-loop systems. Future recommendations include further investigating advanced hysteresis compensation techniques and exploring practical implementation in realworld scenarios. This research contributes to advancing precision control techniques for piezoelectric actuators, with potential applications in areas requiring high accuracy despite hysteresis effects, such as nanopositioning and precision manufacturing.