Simulation of multi-level on-board power supply systems on photovoltaic energy converter

The article is devoted to the analysis of modern information technologies on-board power supply systems at the design stage. As a practical example of using power supply system comprising a plurality of co-operating photovoltaic solar modules, controls the overall automatic control system. Presented internal module structure and revealed the appointment of its members. Charting the replacement solar cell and its complete mathematical model of a closed form that takes into account the reverse current p-n junction and the internal resistance of solar cells. On the basis of the real technical parameters of solar cells and solar cell assembly constructed current-voltage characteristics of photovoltaic cells, confirming the adequacy of the proposed model. In order to study the dynamic properties of the module in a variety of transients means MatLab mathematical package designed simulation model of the solar cell and the family of current-voltage characteristics are obtained for the parameters: the density of the luminous flux and temperature. Compiled simulation model of a multi-level power supply system with three modules of solar cells. The algorithm of multi-level control system in co-operation of all the modules. Transients were studied in the control modes of shading and load current surges. It demonstrated efficiency of the proposed models and the feasibility of their use in the design of on-board electrical systems with photovoltaic energy converters.