Enhanced Control of DFIG-Based Wind Energy Systems Using Matrix Converters and Fractional-Order Regulators

This paper investigates the effectiveness of integrating a matrix converter (MC) into a wind turbine system based on a Doubly Fed Induction Generator (DFIG), focusing on the indirect control of active and reactive power using fractional regulators. To evaluate the performance of this architecture, three distinct configurations are studied and compared: (i) a conventional system using an AC-DC-AC converter combined with a conventional PI regulator, (ii) a structure integrating a matrix converter with a PI regulator, and (iii) an advanced combination of MC with a fractional regulator. Simulation results demonstrate that this latter solution offers significant improvements in dynamic performance, more precise regulation of active and reactive power, and higher energy efficiency than the other two methods.