MATRIX ANALYSIS OF THE TOPOLOGY OF ELECTRICAL CIRCUITS IN SOLAR PANELS AND PLANTS USING CONTROLLED CONNECTIONS

Abstract

The work is devoted to the use of matrix theory to represent the topology of electric circuits in photovoltaic panels and photovoltaic power stations and their modeling and calculation. When creating the electric circuits in photovoltaic devices, the controlled connections between photovoltaic cells in photovoltaic panels or photovoltaic panels in photovoltaic power stations are used. The advantages of using the dynamic controlled connections instead of fixed ones are noted. The expediency of using the field-effect transistors as a switching element is mentioned. The incidence matrices with elements responsible for series connection, parallel connection and shunt connection are created. That is, by selecting the elements of the matrix, the corresponding connection is implemented. It is noted that these elements can be parametric and change in time that leads to the implementation of a dynamic system. It is shown that using a matrix presentation it is also convenient to calculate the cascade connections of photovoltaic cells or photovoltaic panels, for which the input values are the output values calculated for the previous cascade. It is also shown that it is convenient to separate a unified calculation matrix to a generation matrix, a matrix of parametric processes and a matrix of connections. It is noted that the use of matrix analysis to the calculation of electric circuits allows the use of algorithms for model computer creation and computer simulation. The conclusions were made and it was shown that it is advisable to develop a matrix approach for use in the calculation of hybrid energy systems. References 23, figures 3.

Keywords

• matrix analysis
• topology
• photovoltaic
• solar panels
• solar power plants
• controlled connections