APPARATUS AND METHOD FOR CONTROLLING FUEL CELL SYSTEM USING SUB-POWER CONDITIONING SYSTEM

摘要

Disclosed herein is an apparatus and method for controlling a fuel cell system. The apparatus includes a main power conditioning system which supplies output of normal stacks among a plurality of fuel cell stacks to a load, a sub-power conditioning system which supplies output of one or more deteriorated stacks among the fuel cell stacks to a load, a switching unit which changes a target to which output of each of the fuel cell stacks is connected, and a control unit which senses conditions of each of the fuel cell stacks and controls the switching unit. The apparatus prevents deterioration in performance of some stacks from affecting the other normal stacks. Furthermore, the deteriorated fuel cell stacks are separately controlled to provide power to a sub-load through a sub-power conditioning system.

主权项

1. An apparatus for controlling a fuel cell system, comprising:
a main power conditioning system supplying output of normal stacks among a plurality of fuel cell stacks to a load; a sub-power conditioning system supplying output of one or more deteriorated stacks among the fuel cell stacks to a load; a switching unit changing a target to which output of each of the fuel cell stacks is connected; and a control unit sensing conditions of each of the fuel cell stacks and controlling the switching unit.