Transformer less design of polymer exchange membrane fuel cell based uninterruptable power supply
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Date
2013
Authors
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Publisher
University of Management and Technology
Abstract
This research work presents a transformer less model of fuel cell powered uninterruptable
power supply (UPS). The design consideration of this research includes the utilization of
Polymer Exchange Membrane Fuel Cell ( PEMFC) market available stack model and
designing of an efficient, low loss, cheap and high power design of a transformer less
inverter model for 6kW UPS. This model is controlled with the help of embedded
controller which ensures ripple and glitch free voltage regulated inverter providing pure
sine wave as an output. This efficient inverter uses high frequency ferrite core
transformer which would have a very small size and high efficiency. This model also
ensures a very low total harmonic distortion. The proposed model utilizes a super
capacitor module to overcome the electric transient conditions for the instantaneous
power fluctuation, slow dynamics of the fuel cell and idealizing the overload response.
Finally with synchronization techniques this UPS is connected to AC supply mains, also
the calculations of fuel required for one hour continuous operation of 6kW UPS is
formulated. The model proposed in this research work is implemented in MATLAB –
SIMULINK environment.
Description
Advisor: Dr. A. Aziz Bhatti
Keywords
polymer exchange, membrane fuel