Design and simulation of wind energy conversion system commanded by converter and mechanical brake

This paper concern the design and control of a wind energy conversion system regulating generator phase's currents, voltages, and batteries charging voltage using barking systems and AC-DC converter. Indeed, the braking system permit the regulation of the generator's angular speed and electromotives forces magnitude, and the AC-DC converter permit the regulation of the phase's voltages, currents, and the batteries charging voltage. This method is suitable for permanent magnet axial flux synchronous generators and for Insulated Gate Bipolar Transistor converters (IGBT). In addition, we propose an innovative strategy to push the problem of adding an impedance matching transformer to minimize the over-current effect caused by the sudden variation of the voltage at the generator inductor using the AC-DC converter. It offers the advantage of power chain cost reduction and the improvement of its performances. The overall model of the power chain is implemented under the simulation environment MATLAB-Sumilink for performances analysis of studied structure.