The control of doubly-fed induction generator in wind power plant with the backstepping technique based robust adaptive current controller

With the increasing requirements of quality of electrical network, now Grid codes determine that wind turbine connected to the network, especially for wind farm, must have to be disconnect to the grid during three phase voltage dips, and must have to be able to support the voltage of the grid during and immediately following the grid fault by supplying reactive power to the network, that remains the stability of the network. The control of DFIM with Backstepping technique based robust adaptive current controller, has solved the above problem when the voltage sags to the 50%. The results have been verified on experiment system based on the dSpace Multi Processors ALPHA-COMBO system at Institute of Electrical Technique, TU Dresden, Germany.