DC microgrid operation planning

Distributed generation (DG) and microgrid will play important roles in the future electric network operations. They could improve energy efficiency, minimize environmental impacts and enhance power system reliability. A power scheduling approach considering load/generation changes and time of use (TOU) tariff for a low voltage DC microgrid incorporating energy storage battery, fuel cell and photovoltaic power generations, is presented in this paper. The problem is solved by a multi path dynamic programming (MPDP) approach. Simulation results illustrate the benefits of DG and energy storage integrations in reducing electricity bill for customers adopting DC distribution system.