GWO-based MPPT controller for grid connected Solid oxide fuel cell with high step up DC-DC converter

The solid oxide fuel cell (SOFC) is used as secondary source in micro grid application. When the renewable sources are not able meet load requirement, Battery energy back-up system supposed to supply demand. SOFC come into action when state of charge (SOC) battery backup becomes too low. parameters assumed constant during its operation but those operating practically constant. vary widely which will influence output voltage SOFC. Hence an optimum power extracting controller being implemented ensure maximum under dynamic condition. A high step up converter designed boost whose steady analysis studied this work. switches triggered using grey wolf based optimization algorithm. proposed performance compared with conventional particle swarm controller. simulation carried out MATLAB/simulink and results discussed.