Fractional Order PID Controlled PV Buck Boost Converter with Coupled Inductor

Abstract

Buck-boost converter is a good interface between PV and the load. This paper deals with comparison between PI and FOPID controlled PV fed Buck Boost Converter with Coupled Inductor (PVBBCCI) systems. Open loop PVBBCCI system, closed loop PI controlled PVBBCCI and FOPID based PVBBCCI systems are designed, modeled and simulated using Simulink and their results are presented. The investigations indicate the superior performance of FOPID controlled PVBBCCI system. The proposed system has advantages like reduced hardware count enhanced dynamic response and improved stability. Keyword:Fractional Order (FO) control Photo voltaic (PV) Proportional Integral (PI) control PV fed buck boost converter with coupled inductor (PVBBCCI) Copyright ©2017 Institute of Advanced Engineering and Science.All rights reserved. Corresponding Author:Vanitha D, Electrical and Electronics Engineering Department, SCSVMV University, Kancheepuram, India. Email: vanithadhanapal21@gmail.com INTRODUCTIONFractional Order Controller has got attention of engineers because it can improve the system stability and reduce the chaoitics [1]. This article has presented the basics of some applications like robotics. This paper has presented the behavior of control system over wide range of operation. The comparison of responses with proportional integral derivative and fractional order proportional integral derivative controller for voltage regulation is given by Verma [2]. The method of selection of parameters for fractional order proportional integral derivative controller is discussed in this paper. This paper has given comparison of results using Ziglear-Nicholo's method and Coon method. A tutorial on fractional order controller is given by Chen [3]. The differentiation and integration with non integer order is presented in this paper and various numerical methods for simulating fractional order proportional integral derivative based systems are discussed. The practical applications of fractional order proportional integral derivative controller are given by Sandhya [4]. This paper deals with auto tuning of fractional order proportional integral derivative controllers. The application of fractional order proportional integral derivative controller for co-operative cell is presented in this paper. Motion control using fractional order proportional derivative controller is given in Luo [5]. A simple method for designing a fractional order proportional derivative controller is presented for second order plants and design is validated by simulation and experimental results. Tuning of fractional order proportional integral controller is given by Sheng [6]. This paper has presented the desired controlled performance robustness of the proposed fractional order proportional integral system. This paper has presented experimental step response and disturbance rejection. A soft computing technique for PV system is given by Salam [7]. The optimization using fuzzy logic and swam intelligence are presented in this paper.PID controller design and its response for DC D...