Journal of Electrical Engineering : Volume 17 / 2017 - Edition : 2

MAXIMUM POWER OPTIMIZATION USING FLOWER POLLINATION ALGORITHM UNDER PARTIAL SHADING CONDITION FOR SOLAR PANEL

Authors:
J.Jayaudhaya1
Domain:
power electronics
Abstract:
Power sharing in an Islanded microgrid is not straight forward due to load variations as well as variable nature of Renewable Energy sources. This unequal power sharing leads to circulating currents, load imbalance and increased harmonic content. Traditional droop controller provides simple control for real power sharing without communication link, but they suffer from inaccurate reactive power sharing. To overcome the inherent drawback of traditional droop controller, this paper proposes cascaded H-bridge (CHB) multilevel inverter. CHB multilevel inverter provide increased output voltage, there by improves power quality. The Fuzzy Logic Controller provides simple and accurate control to CHB multilevel inverter. The proposed system is simulated in MATLAB Simulink Environment. This scheme provides closed loop control of DG units, in turn improves reactive power sharing between DG units, and thereby effectively reduces total harmonic distortion during islanding. The main focus of the paper is in power sharing issue on harmonic currents. The simulation results are verified with experimental microgrid hardware.
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