Vol: 1 Issue: 1
Development of an ultimate gain proportional integral derivative (PID) controller for control of electro hydraulic actuator servo system
Anyin Paul, Akpama James, Ohiero Peter
Abstract
The application of electro-hydraulic actuator servo systems in various industrial and aerospace settings demands a level of precision and adaptability that is often challenging to achieve with conventional control methods. The Proportional Integral Derivative (PID) controller has long been the cornerstone of control solutions, offering the promise of accurate regulation in the face of complex system dynamics. However, traditional PID controllers are constrained by their static parameters, rendering them less effective in addressing the intricacies and nonlinearities inherent in electro-hydraulic actuators. In response to this challenge, this article introduces a ground breaking approach; the Ultimate Gain Adaptive PID controller. This novel control strategy fuses the fundamental principles of PID control with adaptive algorithms, enabling the PID parameters to dynamically adjust in real-time in response to the system's behavior and external influences. The article first describes the mathematical model of the system, followed by the design methodology of the adaptive PID controller. The proposed adaptive PID controller is based on the Ultimate Gain method, and it adapts the controller gains based on the output of the system using feedback. The article also presents simulation results indicating the performance of the proposed control scheme compared to a conventional PID controller tuned with Genetic algorithm and Ziegler-Nichols method. The results suggest that the proposed adaptive PID controller provides better tracking performance, reduced overshoot, and improved stability for the electro-hydraulic actuator servo system. The article concludes that the proposed adaptive PID controller can be a potential solution for precise control of such complex systems.is compulsory.
Keywords— Electro-Hydraulic Actuator Servo Systems, PID, Ultimate Gain, Ziegler-Nichols