Predictive energy management for MVDC all-electric ships

The integration of energy storage devices is essential to handle the high-power ramp-rate loads in all-electric ships. This paper presents a novel predictive control method to manage the energy flow among distributed resources including generators and a bulk energy storage. The system objective, which guarantees the high-power ramp-rate operation of pulsed power load, will be formulated based on the state of charge of the energy storage. The solution of the formulated objective provides the optimal charging and discharging profile for the energy storage to handle high ramp-rate demands. Simulation results in a 12 kV-100 MW MVDC ship power system validate the proposed control algorithm.