Low voltage direct current(LVDC) nanogrid for home application

Nanogrids are the building blocks of a microgrid which is powering a single building. Low voltage DC distribution system within building structures is called a LVDC nanogrid. DC electronic loads like LED Lights, BLDC fans, PC, battery system and renewable sources can be connected to the nanogrid. LVDC nanogrid is a low power DC distribution system suitable for residential applications with an efficient power and control architecture. The Nanogrid power architecture consists of subsystems such as the Nanogrid system controller, Nanogrid power Switch/socket, Battery Management System, Solar PV Converter and backup AC/DC converters. The average load demand in the nanogrid is provided by the local renewable energy resources like solar PV. A battery management system ensures uninterruptible power supply to the high priority loads. The objective of the work is to investigate the power and control architecture to evolve the specifications, to implement Low Voltage Direct Current (LVDC) Nanogrid for residential applications. Protocol for LVDC communication is based on CANopen standard (EN 50325-4). Control Strategies for optimal power management in Nanogrid is highlighted in this work.