Solar PV Array-BES Integrated AC Microgrid with Seamless Transition to DG Set

摘要

This paper presents an islanded microgrid comprised of solar energy conversion (SEC), a battery energy storage (BES) and a diesel generator (DG) set with an efficient control strategy. This configuration aims at the maximum utilization of solar energy and the economical usage of other sources. The maximum utilization of solar energy is achieved by harvesting the photovoltaic (PV) array maximum power. The DG set is controlled to operate only when the PV array together BES can’t support the load power. Thus this configuration mitigates the discontinuity in supplying the load demand. A weighted zero-attracting leaky least mean square (WZA-LLMS) adaptive control provides solutions for power quality issues such as reactive power, harmonics and power unbalance in three phases etc. The MATLAB/Simulink platform is used for the modeling and simulation of the microgrid system.