Pso And De Based Tuning Of Pid Controller Essay

2684 WordsAug 10, 201511 Pages
PSO and DE Based Tuning of PID Controller in AVR System G.E.N.GANESH Electrical and Electronics Engineering A.U. College of Engineering (A) Visakhapatnam, India eswaranagaganesh@gmail.com K.VAISAKH, Ph.D Electrical and Electronics Engineering A.U. College of Engineering (A) Visakhapatnam, India vaisakh_k@yahoo.co.in Abstract— In this paper, determination of optimal parameters of a PID controller in an Automatic Voltage Regulation (AVR) system by the approach of Particle Swarm Optimization (PSO) and Differential Evolution (DE) Techniques is presented. This paper demonstrated in detail how to employ the PSO and DE methods to search efficiently the optimal PID controller parameters of an AVR system. A MATLAB simulation has been performed. The proposed approach had superior features, including easy implementation, stable convergence characteristic, and good computational efficiency. In order to assist estimating the performance of the PID controller using PSO and DE, Minimum Error Integral (MEI) criterion Integral Absolute Error (IAE), Integral Square Error (ISE), Integral Time Absolute Error (ITAE) and Integral Time Square Error (ITSE) are used. Keywords— AVR system, Differential Evolution, Particle Swarm Optimization, PID controller, tuning of controller. Introduction The main aim of automatic voltage regulation system is to hold terminal voltage constant. The characteristics of alternator output required are constant voltage and constant current. To get the
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