Induction generator using AC/DC/AC PWM converters and its application to the wind-energy systems

This paper proposes basic concepts of a fixed speed wind turbine (FSWT), as an introduction to a modern wind turbine concept; also, energy extraction from the wind turbine, in order to highlight the utility of the DPC in the field of the quality of the electric power. The VOC will be compared with structure known as DPC [1] applied to IG wind turbine connected to the network using back-to-back PWM converters. The theoretical principle of this method is discussed. From the simulation results, it is shown that DPC-2L displays several features, such as a simple algorithm and good dynamic response. The turbine side converter is controlled by the structure known Indirect Field Oriented Control (IFOC) in tow case [2]. Both VOC and DPC are simulated using MATLAB software to illustrate the performance of each technic.