Design considerations for ELVDC power distribution system integrated directly with DC energy sources for LED lighting in high-rise built environment

With the recent focus on DC power distribution in the built environment due to ease of integration of DC energy sources such as solar photovoltaic and battery energy storage, the Extra Low Voltage DC (ELVDC) power distribution system suitable for high rise building with direct integrated DC energy sources and LED lighting loads is discussed in this paper. Design considerations and system level modeling are described. The architectural concept has high system level efficiency, and does not need complex re-design when retro-fitting into existing buildings. Simulations and experimental results are presented in this paper which supported our proposed design.