Design of Enhanced MPPT Techniques for Solar and Wind Energy Conversion Systems in a Microgrid

Abstract

DC Microgrid is one feasible and effective solution to integrate renewable energy sources as well as to supply electricity. This paper proposes the enhanced Maximum Power Point Tracking (MPPT) techniques for wind and solar energy systems in a microgrid. In this paper, the PV system power generation is enhanced by introducing a two-model MPPT technique that combines incremental conductance and constant voltage MPPT algorithms. Also, for the Wind Energy Conversion System (WECS) with pitch angle controlling technique, an Optimal Power Control MPPT technique is added. The Space Vector Pulse Width Modulation technique is introduced on grid side converter to improve the supply to the grid. The performance of proposed system is analyzed and the efficiency obtained with these methods is enhanced as compared with the MPPT methods that work independently.

Keywords: PV system, WECS, two-model MPPT, Optimal Power Control, SVPWM technique.