Diseño de un filtro activo de corriente en un aerogenerador doblemente alimentado para la reducción de la resonancia sub-síncrona

Abstract

The level of the use of renewable energies has grown remarkably during the last decades. Which has generated a momentum in the academic field and an evident development in Wind Turbine Generator (WTG) technology. In which the performance of the Double Fed Induction Generator (DFIG) stands out. However, one of the obstacles sent during its operation is known as: Sub Synchronous Resonance (SSR) phenomenon for its acronym in English, preventing its optimal performance. The SSR problem is generated by the energy exchange interaction between the electrical network and the DFIG, since this energy is in the lower range of the fundamental frequency. In this context, this study covers the design of an active current filter whose objective is to control and mitigate the generation of harmonics (SSR) that occurs in DFIG wind turbines. For this purpose, the filter is evaluated in an IEEE 13-bar electrical distribution system subjected to different load modifications that are evaluated in five case studies. Finally, after carrying out the corresponding evaluation of the active current filter in the different study cases, a series of results are obtained and confirm the efficient operation of the filter, which generates a reduction in harmonics (SSR) and meets the objectives raised for filter design.