Abstract
This paper presents very small laboratory hybrid photovoltaic-hydrogen power system. The system was primarily assembled to verify the operability of the control algorithms and practical deployment of available commercial hydrogen technologies that are directly usable for storage of electricity produced from renewable energy sources in a small island system. This energetic system was installed and tested in Laboratory of fuel cells that is located in the university campus of VSB-Technical University of Ostrava. The energetic system consists of several basic components: a photovoltaic field, accumulators bank, water commercial electrolyzer and compact fuel cell system. The weather conditions recorded in two different weeks as model weather and solar conditions are used as case studies to test the energetic system and the results for two different cases are compared each other. The results show and illustrate selected behaviour curves of the power system and also average energy storage efficiency for accumulation subsystem based on hydrogen technologies or at the energetic system embedded components. On the basis of real measurement and its evaluation the ideal parameters of the photovoltaic field were calculated as well as the hydrogen technologies for supposed purpose and the power requirements.
Highlights
The planet Earth has no other resources besides those that evolved as a result of natural physical processes long before the arrival of human era
The main function of the accumulator storage bank in the energetic system is accumulation of electrical energy produced by photovoltaic panels that does not directly cover consumption of a load, consumption of the electrolyzer, transmission and transformation losses of the system
This amount of hydrogen gas corresponds to 0.296 kWh of energy usable by the fuel cell and the efficiency of electric power conversion into hydrogen equals to 18.8 %
Summary
The planet Earth has no other resources besides those that evolved as a result of natural physical processes long before the arrival of human era These materials include mainly fossil fuels, as the greatest contribution to the development of mankind, radioactive elements or hydrogen bonded in water. Just the combination of technologies for the utilization of energy from renewable sources and hydrogen technologies can help to remove mentioned deficiencies or at least improve the usability of renewable energies and generally expand the limits of acceptability of these sources into the power distribution system Such hybrid power systems was examined and tested by the authors in other studies [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17]
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