Abstract
Due to increasing concerns on environmental pollution and depleting fossil fuels, fuel cell (FC) has received considerable attention as an alternative to the conventional energy systems. Fuel cells have numerous stand-alone and grid-connected applications. This paper presents the control of the stand-alone application based on fuzzy PID (FPID) controller. The aim of the paper is to achieve the control of the fuel cell for stand-alone with suitable power conditioning unit (PCU) that consists of the two stages of DC/DC converter and DC/AC inverter. An analysis of cascade structure based on FPID controller for a single phase inverter is done and comprises two feedback control loops. The inductor current and capacitor voltage are measured and feedback to the inner loop and the outer loop, respectively. The analytical models of the h PEM fuel cells is designed and simulated by developing a detailed simulation software using Matlab, Simulink and SimPowerSystems Blockset for portable applications. The PEM fuel cell model is validated with NexaTM Power Module MAN5100078 by Ballard Power Systems at 80°C. In this paper shown that the proposed controller shows a robust behavior and good transient response.
Highlights
In the last decades, the traditional methods from burning fossil fuels haveEnvironmental problems derived from the CO2 emissions such as climatic change and urban air pollution, and fossil fuels dependence, should encourage actions in several fields in order to minimize them [1]
Polymer Electrolyte Membrane (PEM) fuel cells are a good source of energy for supply stationary-state power, but cannot answer changes of load as fast as it will be taken
This study aims to model a stand-alone application consists of a PEMFC as the primary energy source, DC/DC boost converter and voltage source DC/AC inverter
Summary
Environmental problems derived from the CO2 emissions such as climatic change and urban air pollution, and fossil fuels dependence, should encourage actions in several fields in order to minimize them [1]. Fuel cell technology is considered as a suitable alternative in several applications. PEM fuel cells are a good source of energy for supply stationary-state power, but cannot answer changes of load as fast as it will be taken. The main disadvantage of fuel cells is load current variations and extreme load fluctuations that cause voltage fluctuations and power problems at the time. This problem can be solved with using the proper power converters and control strategies
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