Title :
Optimized PID control using Nelder-Mead method for electro-hydraulic actuator systems
Author :
Tajjudin, Mazidah ; Ishak, Norlela ; Ismail, Hashimah ; Rahiman, Mohd Hezri Fazalul ; Adnan, Ramli
Author_Institution :
Fac. of Electr. Eng., UiTM Malaysia, Shah Alam, Malaysia
Abstract :
Despite the application of advanced control technique to improve the performance of electro-hydraulic position control, PID control scheme seems able to produce satisfactory result. PID is preferable in industrial applications because it is simple and robust. The main problem in its application is to tune the parameters to its optimum values. This study will look into an optimization of PID parameters using Nelder-Mead approach for electro-hydraulic position control system. The electro-hydraulic system was represented by an ARX model structure obtained through MATLAB System Identification Toolbox. Second-order and third-order model of the system had been evaluated. Simulation and real-time studies show that ARX211 produced the best response in terms of transient speed and RMSE performance criteria even though the model has the least percentage of best fit.
Keywords :
electric actuators; hydraulic actuators; optimisation; position control; three-term control; ARX model structure; MATLAB system identification toolbox; Nelder-Mead method; electro-hydraulic actuator systems; electro-hydraulic position control system; optimized PID control; Actuators; Mathematical model; Optimization; Real time systems; Roads; System identification; Electro-hydraulic system; Nelder-Mead optimization; PID control; System identification;
Conference_Titel :
Control and System Graduate Research Colloquium (ICSGRC), 2011 IEEE
Conference_Location :
Shah Alam
Print_ISBN :
978-1-4577-0337-9
DOI :
10.1109/ICSGRC.2011.5991836
