Superconducting Magnetic Energy Storage System based Improvement of Power Quality on Wind/PV Systems

Magnetic Energy Storage (SMES) is applied on wind energy conversion systems (WECSs) that are equipped with Doubly Fed Induction Generators (DFIGs) and Photo Voltaic (PV) system during the presence of voltage sags and swells in the grid side. The Wind and PV energy are suitable for hybrid system because they are environmental friendly. Without SMES, certain levels of voltage sags and swells in the grid side may cause a critical operating condition that may require disconnection of hybrid systems to the grid. Voltage sags are an important power quality problem. The selection of a SMES unit in this project is based on its advantages over other energy storage technologies. Using the Hysteresis Current Control approach in conjunction with a Fuzzy Logic Controller, the SMES unit fruitfully and effectively enhances the performance of the DFIG and PV systems during voltage sag and swell events in the grid side. Thus, this will prevent the hybrid systems from being disconnected from the grid. The modeling of the wind energy conversion systems (WECSs) that are equipped with doubly fed induction generators (DFIGs) and Photo Voltic (PV) systems with SMES is build using MATLAB/Simulink