METHOD AND SYSTEM FOR BALANCED CONTROL OF BACKUP POWER

摘要

A power system (10) comprising: a primary power source (32) in electrical communication with a bridging power source (46), wherein the bridging power source is in electrical communication with a bus (40); a secondary power source (100) in electrical communication with the bus, wherein the secondary power source comprises an electrical system including a fuel cell (34). The system further includes: a controller (44) electrically disposed between and in operable communication with the bus and the bridging power source, and electrically disposed between and in electrical communication with the bus a nd the secondary power source. The controller monitors the primary power source , initiates powering by the bridge power source when the primary power source exhibits selected characteristics, initiates the secondary power source when the bridging power source is depleted exceeding a first selected threshold, and initiates interruption of powering by the secondary power source.