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Implementation of a Multiobjective Control for Islanded Hybrid Microgrid

This article presents an implementation of a fast and accurate control strategy for a synchronous generator driven by a diesel engine and a two-stage solar photovoltaic (PV) with a battery storage-based microgrid (MG) system. This MG feeds active power from a solar PV array to the distribution network by operating it at its maximum power point (MPP). The MPP of the solar PV array is estimated by using an incremental conductance control. An adaptive control of volterra least mean square/fourth (VLMS/F) is applied to an islanded hybrid MG to control the power converter that is interconnecting dc sources to the ac system, to improve various power quality indices such as harmonics suppression, compensation of reactive power, balancing of output currents from the diesel generator set, and neutral current compensation in a three-phase four-wire system. The simulation and experimental investigations of the developed MG show the performance superiority of the VLMS/F control strategy over the conventional controls.