Browsing by Author "Riaz, Saleem"
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Article A Future Concern of Iterative Learning Control : A Survey(Taru Publications, 2021) Riaz, Saleem; Hui, Lin; Aldemir, Mehmet Serif; Afzal, FarkhandaThe main idea of iterative learning control (ILC) was exposed when Arimoto's first paper was published. Industrial tasks mainly in repetition are controlled by an iterative teaching controller in both iteration and time-domain which makes ILC unique. ILC is becoming very popular among control engineers because of its very simple and effective control techniques. This paper describes the basic key knowledge about ILC and its types of applications. The core concern of this paper is to elaborate and explore the future scope and key application areas of iterative learning control in engineering as well as other all subjects of interest.Article An Improved Fast Error Convergence Topology for Pdα-Type Fractional-Order Ilc(Taylor & Francis Ltd, 2021) Riaz, Saleem; Lin, Hui; Mahsud, Minhas; Afzal, Deeba; Alsinai, Ammar; Cancan, MuratThe monotonic convergence of the PD alpha-type fractional-order iterative learning control algorithm is considered for a class of fractional-order linear systems. First, a theoretical analysis of the monotonic convergence of 1st and 2nd order PD alpha-type control algorithms is carried out in the typical terms of Lebesgue-p (L-p), and the sufficient conditions for their monotonic convergence are comprehended and extended to the case of N-order control algorithms; then the speed of convergence of the two is explained in detail. It is concluded that the conditions for convergence of the control algorithm are determined by the learning gain and the system's properties are together determined. Simulation experiment verifies the accuracy of proposed scheme and the validity of the control algorithm.