Abstract
An effective power control strategy of intermittent wind/PV generations in an isolated Microgrid is proposed to address frequency and voltage requirements. The studied Microgrid is a 33-bus system supplied by small PV unit and squirrel cage induction generator (SCIG)-based wind energy conversion system (WECS). Due to its fast response, high efficiency and long lifetime in comparison to other alternatives storage systems, superconducting magnetic energy storage (SMES) has been used as a storage system. The control strategy is based on fuzzy logic controller (FLC) to control the power exchange between SMES and Microgrid. The Microgrid, WECS, PV, and SMES are modelled with MATLAB/SIMULINK package and the simulated results show the effectiveness of the control strategy in smoothing the power transfer to the Microgrid during the wind/PV power fluctuations. The frequency is successfully maintained at 50Hz and the voltages are maintained constant at the desired values.