A Comparative Study of Wind Energy Conversion System incorporating the Doubly Fed Induction Generator and the Permanent Magnet Synchronous Generator

Abstract

The renewable energy power producer (RPP)  sector is growing rapidly to become an important  source of power in South Africa and in nations  across the globe. Companies within this sector  provide a variety of clean energy sources. Despite  its ability to support the power system and  conserve the environment that sustains life, the  rising usage of renewable distributed generators  (RDGs) poses power quality problems in the  overall distribution network, such as the voltage  instability at buses, the increase in voltage/current  harmonic distortions, etc. Furthermore, RDGs are  required to remain connected to the electrical  power network during grid faults and provide  system support by injecting reactive current when  required, depending on the nature of the fault.  This study provides a dynamic performance  analysis of a doubly fed induction generator  (DFIG) based wind energy conversion system  (WECS), and permanent magnet synchronous  generator (PMSG) based WECS. The potential  fault ride-through capability solutions in grid code  power generation and injection of reactive power  are taken into account, and the application results  of both systems are shown under similar working  conditions. From the simulation results, it is found  that the DFIG based WECS topology performed  well compared to the PMSG based WECS  topology. 

https://doi.org/10.59200/ICONIC.2022.026