Patent ID: 9550556
Date: 2017-01-24
CPC Classifications: B60L,B63H,B64D,H02J,Y02T

Claim:
1. A power system comprising: a first combustion engine driven generator, a second combustion engine driven generator, a battery unit, and a converter unit arranged to provide power to a vessel from the battery unit, wherein in a first operational state of the power system only the first combustion engine driven generator is arranged to deliver power for dynamic positioning of the vessel, and wherein in a second operational state in which the first combustion engine driven generator is subject to a failure, the first combustion engine driven generator is disconnected from the power system so that it is unable to deliver power for dynamic positioning of the vessel and the second combustion engine driven generator is arranged to deliver power for dynamic positioning of the vessel, and wherein the converter unit is arranged to deliver power to the vessel during a transition from the first operational state to the second operational state, and wherein the power system is for dynamic positioning of the vessel so that the vessel maintains position and heading despite forces acting on the vessel.