The Research of Power Supply System Operating Modes with Solid Oxide Fuel Cells on Biogas

The article is devoted to the use of solid oxide fuel cells (SOFC) in offline power supply systems. The method of selection SOFC-based power plant for an agricultural enterprise has been developed. The method allows determining the optimal capacity of a power plant depending on the volume of biogas. The scheme of livestock complex's power supply system is also presented. An autonomous power supply system consists of the main energy source, a standby generator, an energy accumulation system and a power conversion system. The algorithm has been developed which allows solving the problem of SOFC-based power plant low maneuverability and it ensures its effective operation when changing the power consumption. The authors have also developed the Matlab-model for livestock complex's power supply system to study its operation modes. The oscillograms of currents and voltages are shown. The results obtained in the research may be used to design offline power supply systems for agricultural enterprises with the ability to produce biogas.