Monitoring pulsed power on ship electrical systems

Abstract

In this paper, forthcoming distributed generation and energy storage systems for ships are monitored by Sampled State Estimation (SSE). The paper demonstrates how a high data rate from transducers on the electrical system can be used in a discrete version of State Estimation that is effective in transient conditions as well as in steady operation. Various energy storage devices such as batteries are distributed around the ship and employed in conjunction with rotating machine generation in order to deliver pulses of power that far exceed the capability of the rotating machines. The distributed energy storage is coordinated to serve high pulse loads and employed to service local loads via dc/dc or dc/ac converters for fail-safe local power operation. The advantages of State Estimation on ship power systems are demonstrated for sampled data from current and voltage transducers.