MRAS Technique Speed Control of Sensorless Induction Motor Drives Supplied by Photovoltaic Solar Energy

In this paper, we show that the association of the PI regulators for the speed and stator currents with a control strategy using the linearization by state feedback for an induction machine without speed sensor and with an adaptation of the rotor resistance powered by a solar photovoltaic energy. The solar photovoltaic energy nowadays, is one of the renewable energies sources present in various domains of applications. Moreover, the photovoltaic generator (PVG) output voltage depends of several climatic factors, such as the irradiations and the temperature. To overcome these problems, one must carries out an adequate sizing and exploits the maximum power available at the level of the (PVG). Thus the proposed structure in our work is constituted of one PV generator associated to a (DC/DC) converter controlled by using a technique of maximum power point tracker (MPPT). Brief analysis of various methods of speed estimation and vector control has been made. The model reference adaptive system method (MRAS) was chosen for its good tracking. Satisfactory results of simulation are obtained and discussed in this paper to highlight the proposed approach.