Article,
Smart Energy Management controller for a Micro Grid
International Journal of Engineering Research, 4 (8): 456-464 (August 2015)
Abstract
This paper adopts a proposed energy management
controller in a micro grid. This micro grid integrates both a
renewable energy source and energy storage systems.
Photovoltaic (PV) is adopted as a main power source, a valve
regulated lead acid battery, and Super-capacitor are the
energy storage system. This hybrid energy storage integrates
the advantages of a high energy density of the battery and a
high power density of the super-capacitor to decrease the
stress on the battery and to decrease the voltage change at
transient conditions. The proposed controller consists of two
control units. The First unit is used for maximum power point
tracking (MPPT), and the Second is used to drive the
bidirectional converters for charging and discharging modes
of the battery and the super capacitor; according to the load
demand and the environmental conditions. The simulation
results show the effectiveness and the efficiency of the
proposed control strategy.
