Implementace palivového článku do fotovoltaického systému

Abstract

This dissertation thesis deals with the issue of integration of systems accumulating electric power on the basis of hydrogen technologies with an energy system producing electric energy from renewable energy resources. The dissertation thesis summarises results achieved within executed practical measuring taking from hydrogen fuel cells and it also in details describes the design and especially the analysis of the results gained from trial operations of an experimental energy system accumulating electric energy with the assistance of hydrogen technologies.

The introductory part of the dissertation thesis analyses some of the aspects of the current energy situation existing around the world and also in this country, while taking into the account the development and the structure of fuels utilisation, energy production and consumption, and the trends globally envisaged in relation to the utilisation of renewable energy sources. The dissertation thesis objectives’ defining extends freely this body of the text. The following chapter deals with the analysis of fuel cells technology and the hydrogen technologies as such. There are the basic principles of fuel cells functioning explained as well as their basic division and the defining of their advantages and disadvantages, especially when compared with chemical accumulators and classic combustion engines. Also, there are the functioning principles of an electrolyser and the water electrolysis described as the process producing hydrogen. The theoretical base of the previous chapter is then directly extended in the chapter summarising results gained by the author when measuring hydrogen fuel cells in practice. The results verified, within the context of the consequently planned energy application, the cells’ operational properties. That took place in a newly built testing place, prepared for that purpose, in the fuel cells laboratory at VŠB-TU Ostrava. The two following chapters foreshadow the current possibilities existing in electric power accumulation and describe the division of varied technologies. For the purpose of illustration and assessment of knowledge gained in the past, there is the analysis of the already applied experimental energy systems using integrated hydrogen technologies, usually cooperating with electric power sources utilising renewable energy resources. The main benefits of this dissertation thesis are summarised in two extensive chapters dealing in detail with the conception, integration of individual components, the design description, specification of individual components, and the description of managing and control algorithms in the experimental energy system prepared by the author. The final chapters also analyse results, operational characteristics and energy parameters emerging from the trial operations of the prepared experimental energy system.