Design and Implementation of Digital Fractional Order PID Controller Using Optimal Pole-Zero Approximation Method for Magnetic Levitation System

查看全文 作　　者：Amit [1,2]S.Chopade;Swapnil [1,2]W.Khubalkar;[2]A.S.Junghare;[1,2]M.V.Aware;Shantanu [3]Das

机构地区：[1]IEEE;[2]the Department of Electrical Engineering,Visvesvaraya National Institute of Technology,Nagpur India-440010,India;[3]Reactor Control Division,Bhabha Atomic Research Centre,India

出　　处：《IEEE/CAA Journal of Automatica Sinica》索引2018年第5卷第5期,共13页

基　　金：supported by the Board of Research in Nuclear Sciences of the Department of Atomic Energy,India(2012/36/69-BRNS/2012) 摘　　要：The aim of this paper is to employ fractional order proportional integral derivative(FO-PID) controller and integer order PID controller to control the position of the levitated object in a magnetic levitation system(MLS), which is inherently nonlinear and unstable system. The proposal is to deploy discrete optimal pole-zero approximation method for realization of digital fractional order controller. An approach of phase shaping by slope cancellation of asymptotic phase plots for zeros and poles within given bandwidth is explored. The controller parameters are tuned using dynamic particle swarm optimization(d PSO)technique. Effectiveness of the proposed control scheme is verified by simulation and experimental results. The performance of realized digital FO-PID controller has been compared with that of the integer order PID controllers. It is observed that effort required in fractional order control is smaller as compared with its integer counterpart for obtaining the same system performance. 关键词：控制器自动化系统技术创新参数调整

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Design and Implementation of Digital Fractional Order PID Controller Using Optimal Pole-Zero Approximation Method for Magnetic Levitation System

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