A Simple Method to Design a Decoupler for a Proton Exchange Membrane Fuel Cell

A decoupling control system is designed by a simple tuning‐free method for the multi‐input multi‐output model of a proton exchange membrane fuel cell. The decoupler minimizes the interactions among the loops and is designed by estimating the relative normalized gain array and dynamic relative gain a...

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Bibliographic Details
Published in:Chemical engineering & technology 2022-03, Vol.45 (3), p.432-440
Main Authors: Goyal, Ishita, Reddy, Supreetha, Rao, Chinta Sankar
Format: Article
Language:English
Subjects:
Arrays
Control systems design
Controllers
Decouplers
Decoupling
Fuel cells
Model matching
Process control
Proportional integral
Proton exchange membrane fuel cells
Proton exchange membranes
Protons
Simulations
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Summary:A decoupling control system is designed by a simple tuning‐free method for the multi‐input multi‐output model of a proton exchange membrane fuel cell. The decoupler minimizes the interactions among the loops and is designed by estimating the relative normalized gain array and dynamic relative gain array for the closed‐loop model. The proportional integral controller settings are estimated using the partial model matching method. The performances of the proposed method are studied based on closed‐loop performances of control variables and time integral errors that are compared with the synthesis method. The proposed controller performs better in terms of integral of time‐weighted absolute error. The performance of a proton exchange membrane fuel cell can effectively be optimized by minimizing interactions between loops. A simple method is proposed to design a decoupler for such a fuel cell. The designed controller produces enhanced set point tracking and disturbance rejection responses compared to that of the reported method in the open literature.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.202100467