• L.Jyothi
• P.Durai Pandy

A Microgrid is an integration of distributed energy sources, loads and energy storage systems. It gives opportunity to utilize renewable energy sources for green and clean environment. Energy storage systems are required in order to ensure reliability and power quality because of the intermittent nature of renewable energy sources and changes of load demand. Renewable Energy Sources (RES) are limited to their available power with intermittent nature. Battery-based energy storage sources have limitations in the charging and discharging capabilities to avoid depleting the battery and preserve the State of Charge (SOC) within its satisfactory limits. The battery balances the power difference between RES and loads. However, in severe cases where the SOC is very low, load shedding is crucial. In this paper, a Fuzzy Logic Controller (FLC) has been proposed to coordinate the power flow of PV unit and battery to satisfy the load by full use of the available PV power. It controls the PV's output power and keeps the SOC and charging / discharging power of the battery within their required margins regardless of the variations in load. Control strategy based on the fuzzy logic ensures balanced stored energy among distributed energy storage units, as well as low voltage deviation in a DC microgrid.

Renewable energy, DC Microgrids, Fuzzy logic controller

"AUTOMATIC POWER CONTROL AND MANAGEMENT BETWEEN STANDALONE DC MICROGRIDS USING FLC", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 2, page no.56-62, February-2020, Available :http://www.jetir.org/papers/JETIRDJ06009.pdf

"AUTOMATIC POWER CONTROL AND MANAGEMENT BETWEEN STANDALONE DC MICROGRIDS USING FLC", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 2, page no. pp56-62, February-2020, Available at : http://www.jetir.org/papers/JETIRDJ06009.pdf