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This paper presents the modelling and simulation of proton exchange membrane (PEM) fuel cell (FC) together with a dc-dc converter and dc-ac inverter. The need for the dc-dc converter arises as a result of the output voltage generated from the FC which fluctuates with variation in load. The FC voltage is therefore, controlled using dc-dc converter to provide a regulated dc voltage output at 220 V for...
This paper deals with a real-time simulation (RTS) able to accurately reproduce an electrical system in real-time. The RTS proposed architecture is written in VHDL and implemented in a field programmable gate array (FPGA) device. Multi-sampling approach is adopted allowing a real-time functioning with different time-steps and different operating conditions with minimized lost of accuracy. The proposed...
New energy generation systems, such as photovoltaic cells or fuel cells are increasing in application on distribution networks. These power sources require an inverter to connect to an AC network. There is the possibility that sub-network containing inverter power sources will be disconnected from the utility system to become isolated networks. This paper focuses on an isolated distribution network...
This paper presents a modified predictive current control strategy which allows one to have control over the spectrum of the load current. The proposed method uses a model of the system to predict the behavior of the current for each possible voltage vector generated by the inverter. For that purpose, at each sampling interval, signal predictions are evaluated using a cost function that quantifies...
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