Investigation On the Control of a DFIG And Dual-Energy Storage System for Stable Performance.

Abstract

Abstract: Utilizing an energy storage system is a very efficient method to offset the fluctuations in wind power. This study suggests utilizing a hybrid storage energy system to offset the major components based on the frequency content analysis of DFIG power fluctuations. This system comprises a battery for energy storage and a super-capacitor. Subsequently, it establishes a fuzzy sliding control approach for a Dual Energy Storage System (DESS). The implementation of a fuzzy controller can effectively mitigate the undesirable phenomenon of chattering that may occur when using a sliding controller. By examining the step response of the control system under disturbance, the robustness of the fuzzy sliding controller in the wind power DESS simulation model on MATLAB is confirmed. The simulation calculation conclusively illustrates the energy storage system's output and state of charge (SOC), affirming the DESS controller's effectiveness in reducing fluctuations and improving disturbance rejection.