|A NEW FUZZY CONTROL STRATEGY OF SWITCHING REGULATORS FOR FUEL-CELL POWER APPLICATIONS|
|A.PRASHANTH , A.SAI SUBHADRA|
|Cite This Article:|
A NEW FUZZY CONTROL STRATEGY OF SWITCHING REGULATORS FOR FUEL-CELL POWER APPLICATIONS, International Journal of Innovative Research in Technology(www.ijirt.org) ,ISSN: 2349-6002 ,Volume 5 ,Issue 5 ,Page(s):11-14 ,September 2018 ,Available :IJIRT147149_PAPER.pdf
|It is typically assumed that the input supply voltage to a switch-mode power supply is constant or shows negligible small variations. However, the last assumption isn't any longer valid once a fuel-cell stack is employed as input supply. A fuel-cell stack is characterized by low and unregulated DC output voltage, additionally, this voltage decrease in a very non-linear fashion once the demanded current increases; henceforward, an appropriate controller is needed to cope the said problems. during this study, an average current-mode controller is intended employing a combined model for a fuel-cell stack and power converter; what is more a selection procedure for the controller gains guaranteeing system stability and output voltage regulation is developed. The projected energy system uses a fuel-cell module (polymer solution membrane fuel cells) and a power convertor delivering a power of 900 W. In existing method, we used pi controller to produce the pulses to control the switches, but pi controller doesn’t control the initial voltage with in the limit, to maintain it with in limit we introduced fuzzy logic controller. Simulation results make sure the projected controller performance for output voltage regulation via closed-loop gain measurements and step load changes. Additionally, a comparison between open- and closed-loop measurements is created, where the controller hardiness is tested for giant load variations and fuel-cell stack output voltage changes moreover.|
|Unique Paper ID: 147149|
Publication Volume & Issue: Volume 5, Issue 5
Page(s): 11 - 14
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