Decentralized Controller for Energy Storage Management on MVDC Ship Power System with Pulsed Loads

Medium voltage DC systems (MVDC) are gaining more interest in ship power systems. Although, MVDC system has many advantages for the ship power grid, it is challenging to ensure load-generation balance in the presence of pulsed loads. Therefore, proper energy management algorithm of the energy storage devices connected to the system should be developed. This paper proposes an automatic decentralized controller for the energy storage devices connected to the MVDC power system. The controller ensures load-generation balance, maintain the MVDC bus constant and ensures proper power sharing among the storage devices. The simulation results, using MATLAB, prove the adequacy of the proposed controller.