Asian Journal of Research in Social Sciences and Humanities
Year : 2016, Volume : 6, Issue : 10
First page : ( 815) Last page : ( 829)
Online ISSN : 2249-7315.
Article DOI : 10.5958/2249-7315.2016.01055.8

Harmony Search Optimized Fractional Order PID Controller for Voltage Control of Fuelcell

Vinu R*, Paul Varghese**

*Research Scholar, Anna University, Chennai, India

**Department of Computer Science Engineering, Toc H Institute of Science & Technology, Arakkunnam, Cochin, Kerala, India

Online published on 14 October, 2016.

Abstract

In vehicular applications, fuel cell operates under varying load conditions. Sudden load variations may affect the performance of the fuel cell. The performance of a fuel cell depends on several parameters like input reactant flow rate, partial pressure of the reactants, stack temperature and membrane hydration which can be controlled by varying range of current. Unexpected load variations can cause reactant starved condition that leads to membrane dehydration and failure of the fuel cell. So Voltage Control is an important issue to be considered seriously while implementing any applications with fuel cells. This paper considers Proton Exchange Membrane Fuel Cell (PEMFC) which is widely used for vehicular applications. The aim of this paper is to track the output voltage of fuel cell by varying the input flow rate of hydrogen with the help of a Harmony search optimized Fractional Order PID (FOPID) Controller. The above Controller is implemented and simulated in MATLAB SIMULINK by considering the State space Model of Fuel cell. The performance of the proposed controller is analyzed by (i) Calculating the system (ii) Estimating the Time Response Characteristics of HS tuned FOPID Controller. Finally the simulation results are compared with that of existing PID Controller.

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Keywords

Fractional Calculus, Fractional Order PID Controller, PID Controller, Proton Exchange Membrane Fuel cell, Harmony Search.

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