Modeling and Control of a Wind Power Conversion System Based on the Double-Fed Asynchronous Generator

Abstract

Abstract Wind energy has many advantages, it does not pollute and it is an inexhaustible source. However, the cost of this energy is still too high to compete with traditional fossil fuels, especially on sites less windy. The performance of a wind turbine depends on three parameters: the power of wind, the power curve of the turbine and the generator's ability to respond to wind fluctuations. This paper presents a control chain conversion based on a double-fed asynchronous machine (D.F.I.G) and flow-oriented. The supply system comprises two identical one converters connected to the rotor (RSC) and the other connected to the network (GSC) via a filter. The architecture of the device (Fig. 1) is up by three commands are necessary for the operation of the turbine control extraction of maximum power of the wind to control itself (MPPT) control of the RSC controlling the electromagnetic torque and stator reactive power and control of the GSC by controlling the DC bus voltage and active power and reactive power exchanged with the network. The proposed control, has been validated in both modes of operation of the three-bladed wind 7.5kw, using the Matlab / Simulink. The results of simulation control technology study provide good dynamic performance and static.