Development of a 10 kVA wind energy conversion system prototype using the DFIG technology

This paper presents the development of a prototype of a wind energy conversion system using DFIG (Doubly Fed Induction Generator) technology. This system will be of great importance for conducting studies in relation to the topology of the DFIG, since it is the most used in the world, despite being sensitive to power quality problems of the electrical network. The arrangement of this system uses a back-to-back converter, which has two PWM conversion stages, both operating as voltage sources. Thus, this work presents the implementation of the control of the converter on the side of the grid. The same is done in the synchronous frame of reference, with cascade PI controllers. This methodology allows to approach the control independently, in which the right axis mesh is responsible for the DC link voltage control and the quadrature axis mesh is may be responsible for the control of the reactive power. The purpose of this paper is to validate the method present in the literature, in this way the performance of the controllers was not evaluated. The methodology used and the results obtained will be presented in this article.