Priority-Based Management of Energy Resources During Power-Constrained Operation of Shipboard Power System

It is anticipated that energy storage will play a significant role as increasing numbers of high-power and highly dynamic mission loads are introduced to shipboard systems. The energy magazine (EM) has been proposed as a potential solution for integration of these types of loads, by providing energy storage for buffering dynamics, supplying high power demand over short duration, and providing uninterruptible power system capability. However, the EM also potentially offers the capability to temporarily curtail its power demand, while still serving its loads. In this paper, a rudimentary scheme is described for management of energy resources during periods of power-constrained operation. This approach apportions available power to EMs (or other curtailable loads) based on priority, where the priority of curtailed EMs generally increases over time. Incorporating weights to allow placing higher importance on some EMs and loads, this approach attempts to judiciously allocate scarce power resources, while maintaining service to loads. Simulation results illustrating the approach are also presented.