title: Embedded intelligent adaptive PI controller for an electromechanical system.
abstract: In this study, an intelligent adaptive controller approach using the interval type-2 fuzzy neural network (IT2FNN) is presented. The proposed controller consists of a lower level proportional - integral (PI) controller, which is the main controller and an upper level IT2FNN which tuning on-line the parameters of a PI controller. The proposed adaptive PI controller based on IT2FNN (API-IT2FNN) is implemented practically using the Arduino DUE kit for controlling the speed of a nonlinear DC motor-generator system. The parameters of the IT2FNN are tuned on-line using back-propagation algorithm. The Lyapunov theorem is used to derive the stability and convergence of the IT2FNN. The obtained experimental results, which are compared with other controllers, demonstrate that the proposed API-IT2FNN is able to improve the system response over a wide range of system uncertainties.
authors.affiliation: Department of Industrial Electronics and Control Engineering, Faculty of Electronic Engineering, Menofia University, Menuf 32852, Egypt. Electronic address: Ahmed_elnagar@menofia.edu.eg.
authors.forename: Ahmad M
authors.initials: AM
authors.lastname: El-Nagar
keywords: Adaptive PI controller; Interval type-2 fuzzy neural networks; Lyapunov theorem; Nonlinear DC motor