Patent ID: 11964747
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 11:
12. An energy management system for use in an integrated hybrid power system for a marine vessel, the integrated hybrid power system including a plurality of energy storage units and at least one power generator unit coupled with a power distribution grid, the energy management system comprising:
memory; and
at least one processor coupled with the memory and the plurality of energy storage units, the processor being configured:
to determine whether a consumer load on the power distribution grid is predicted to remain greater than a prescribed rated maximum efficiency loading of the at least one power generator;
to start the at least one power generator when at least one of: (i) the consumer load on the power distribution grid is greater than the prescribed rated maximum efficiency loading of the at least one power generator; and (ii) a charge level of the energy storage units is below a prescribed lower threshold value;
to maintain a substantially constant load on the at least one power generator equal to the prescribed rated maximum efficiency loading of the at least one power generator despite fluctuations in consumer load on the power distribution grid when the consumer load on the power distribution grid is greater than the prescribed rated maximum efficiency loading of the at least one power generator; and
to shut down the at least one power generator when the consumer load on the power distribution grid is less than or equal to the prescribed rated maximum efficiency loading of the at least one power generator and the charge level of the energy storage units is greater than or equal to the prescribed lower threshold value;

wherein the integrated hybrid power system includes a plurality of engine-driven power generators, and wherein the at least one processor is configured:
to determine whether the load on the power distribution grid is greater than a combined maximum rated output power of the plurality of power generators minus one; and
to run the plurality of power generators in a droop mode when the load on the power distribution grid is greater than the combined maximum rated output power of the plurality of power generators minus one.