Matyakh S. Numerical and analytical modeling of nonlinear processes of charge transport in photovoltaic and electrochemical energy converters

Object of research: photovoltaic and electrochemical energy converters. Objective: development of methods for numerical and analytical modeling of nonlinear processes of charge transport in photovoltaic and electrochemical energy converters for the implementation of multivariate numerical experiments. Methods of research: mathematical modeling, synergetic approach to the analysis of charge transfer processes in the photovoltaic and electrochemicalenergy converters and stability theory of systems, methods of vector analysis. Theoretical and practical results. Innovations: computer software has been developed based on the use of adaptive numerical algorithm that enables you to provide multivariate numerical experiments with a significant decrease in the time of their implementation at Compared with other while retaining the same accuracy of the result. On the basis of the use of the vector analysis divergence theorem determined the connection between mean values by volume to external electrical and thermal parameters for analysis of the concentration distribution of tasks and charge temperature and electrochemical photovoltaic energy converters; developed analytical and numerical methods for the formation of structures during charge transport. Subject and the degree of implementation: the results were used in carrying out scientific research at the Institute of Renewable Energy National Academy of Sciences of Ukraine, the National Technical University of Ukraine "KPI" and National University of food technologies Ukraїny. Implementation efficiency: the state - increase in the durability of energy systems based on photovoltaic power sources for the effective implementation of the National action plan to renewable energy. Utilization field: scientists and organizations that take part in the the development of solar photovoltaic Ukraine.