We study in this paper a basis structure constituted by a photoyoltaiec power plant connected to an electrical network through an inverter and a line of energy transfer. The first part of the present paper is devoted to the modeling of the different organs of the structure. In the second part, we study the permanent regime of the system; notably the variation of energy in function of the two essential variables of command that are the cyclic ratio alpha and the load angle delta. In the third part, we study a structure of a command based on the control of the active and reactive power adjustment. We discuss finally the performance and the limit of the functioning of the structure considered.
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