title: Controller design based on μ analysis and PSO algorithm.
abstract: In this paper an evolutionary algorithm is employed to address the controller design problem based on μ analysis. Conventional solutions to μ synthesis problem such as D-K iteration method often lead to high order, impractical controllers. In the proposed approach, a constrained optimization problem based on μ analysis is defined and then an evolutionary approach is employed to solve the optimization problem. The goal is to achieve a more practical controller with lower order. A benchmark system named two-tank system is considered to evaluate performance of the proposed approach. Simulation results show that the proposed controller performs more effective than high order H(∞) controller and has close responses to the high order D-K iteration controller as the common solution to μ synthesis problem.
authors: Faculty of Electrical and Computer Engineering, Babol University of Technology, Babol 47135-484, Iran. Electronic address: a.lari@stu.nit.ac.ir.
authors: Ali
authors: A
authors: Lari
authors: Faculty of Electrical and Computer Engineering, Babol University of Technology, Babol 47135-484, Iran. Electronic address: akhosravi@nit.ac.ir.
authors: Alireza
authors: A
authors: Khosravi
authors: Faculty of Electrical and Computer Engineering, Babol University of Technology, Babol 47135-484, Iran. Electronic address: farshadrjb@stu.nit.ac.ir.
authors: Farshad
authors: F
authors: Rajabi
keywords: PSO; Robust control; Structure-specified controller; Two-tank system; μ Synthesis problem