Performances of Photovoltaic Generator Multi-Level Cascade

In this paper, we study the performances of the cascade of the solar cell panels with the multilevel inverter. In the first part, we develop a knowledge model of the inverter by using connection functions of this converter. A PWM strategy which uses four bipolar carriers is developed to control this converter. In this part, the inverter is fed by constant input DC voltages. The performance of the algorithm is studied on the base of the harmonic rate. Then, we present the solar cell model. In the last part, we study the stability problem of the input DC voltages of the inverter. Thus, we study a cascade constituted by two photovoltaic cell panels – five-level NPC VSI - permanent magnet synchronous machine (PMSM). This studied lets to find a solution to solve this problem. The performances obtained with this cascade are full of promise to be using this inverter in renewable energy