Fuzzy Control of Polymer Fuel Cell for Attract Maximum Power

Subject Areas : Renewable energy

Zahra Nejati ¹ ( MSc /Islamic Azad University Najafabad Branch )
Farid Sheikholeslam ² ( Professor /Isfahan University of Technology )
Hamid Mahmoodian ³ ( ٍElectrical Engineering Faculty, Najafabad Branch, Islamic azad University, Najafabad, Iran )

Received: 2013-05-11 Accepted : 2013-11-09 Published : 2014-02-01

Keywords: fuzzy control, TSK, Polymer fuel cell, maximum power,

Abstract :

Polymer fuel cell is one of the most attractive of fuel cell from point of the design and operation and also in comparison with other types of fuel cell, for a weight and size, polymer fuel cell produces more power. But however, one of the problems to use of this system is its low efficiency .To overcome the low efficiency of the fuel cell polymer in this paper is tried to used from maximum power point tracking. According to the characteristic of the flow –power the fuel cell, which is a non-linear curve and has a maximum point and use of the fuzzy controller and the proper selection of input and output membership functions  trying to the System always works at maximum power. For this purpose, a chopper is used between the fuel cell and the load and to adjust the duty cycle of the applied signal to it is applied the fuzzy-TSK type controller that Its inputs are stream slope and slope changes. The results show that this controller has a good performance and that is faster compared with the perturbation and observation method.

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