Fuzzy Logic Space Vector Direct Torque Control of PMSM for Photovoltaic Water Pumping System

This paper presents an intelligent artificial speed control approach of permanent magnet synchronous motor which leads photovoltaic water pumping system. The photovoltaic solar energy source is connected to boost converter, then it will be controlled using fuzzy logic technical, in order to ensure the maximum power point whatever the climatically conditions and load variation, when their characterises is non-linear. However, an effective solution must ensure that the photovoltaic generator operated at the maximum power and that the motor runs at a high efficiency level. The three-phase inverter and two levels that supplies permanent magnet synchronous motor when was controlled by a space vector pulse weigh modulation. The space vector direct torque control is also studied. So, to analyze the performance of speed control between the fuzzy logic controller and proportional integrator controlled. The performance index based on speed error is assigned to provide a numerical comparison among different controllers. When compared with other methods, the torque ripples are reduced remarkably with the proposed method. The topology of these speed controllers is developed and the simulations with Matlab/Simulink according to the speed and load variation tests are shown and discussed.