LPV affine modeling, analysis and simulation of DFIG based Wind Energy Conversion System

The purpose of this paper is to present the LPV affine modeling of a Wind Energy Conversion System driven DFIG. It also deals with the analysis and the simulation of the established model. For that, starting from the system´s electrical equations, we demonstrate the obtaining of the uncertain state space model of the DFIG. Then, we define a method that allows giving directly the variation range of the uncertainty for subsynchronous, synchronous and supersynchronous operating modes. A normalization step allows simplifying the uncertainty´s variation range. The model´s design and simulation are performed in the Matlab Simulink environment. At the end, the stability analysis is carried out.