Techniques for Discrete Mitigation and Control in Four Area System With DFIG System

Distributed power (DP) generation through solar and wind energy holds immense potential in meeting future energy demands. Recent advancements in grid technology enable efficient utilization of local energy sources, minimizing transmission line losses and facilitating enhanced power distribution capabilities. This study focuses on examining the impacts of disturbances and faults within a four-area system linked to a Doubly Fed Induction Generator (DFIG) using discrete-time modeling. The primary control approach within the four-area system involving the DFIG incorporates various discrete-time Power System Stabilizers (PSSs). A comparative analysis of time-domain responses is conducted across various scenarios, including systems without controllers (no PSS), systems equipped with traditional PSSs such as Delta Omega, Multi-Band, Delta Pa and Fuzzy Logic (FL) based PSSs. A discrete-time mode PSS is specifically tailored for the silent-pole synchronous generator associated with the DFIG system. To assess the performance of the Fuzzy Logic (FL) controller in ensuring power system stability, a test DFIG model is employed. Time-domain simulations of the test DFIG model are carried out using the MATLAB/Simulink (R2015a) environment.