초록 ▼

A method of controlling the operation of a fuel cell system wherein each shutdown command for the system is subjected to decision logic which determines whether the command should be a normal shutdown command or rapid shutdown command. If the logic determines that the shutdown command should be a no

A method of controlling the operation of a fuel cell system wherein each shutdown command for the system is subjected to decision logic which determines whether the command should be a normal shutdown command or rapid shutdown command. If the logic determines that the shutdown command should be a normal shutdown command, then the system is shutdown in a normal step-by-step process in which the hydrogen stream is consumed within the system. If the logic determines that the shutdown command should be a rapid shutdown command, the hydrogen stream is removed from the system either by dumping to atmosphere or routing to storage.

대표청구항 ▼

[ What is claimed is:] [1.] A method of controlling the operation of a fuel cell system which supplies a hydrogen-rich stream to a fuel cell stack wherein the hydrogen stream reacts with oxygen to supply electrical power to an external load, the method comprising:establishing a normal shut down proc

[ What is claimed is:] [1.] A method of controlling the operation of a fuel cell system which supplies a hydrogen-rich stream to a fuel cell stack wherein the hydrogen stream reacts with oxygen to supply electrical power to an external load, the method comprising:establishing a normal shut down procedure for the system in which the load is disconnected from the hydrogen stream;establishing a rapid shut down procedure for the system in which the hydrogen stream is removed from the system;providing system monitoring means operative to generate system shutdown commands;providing a control receiving the shutdown commands, the control operatively subjecting the shutdown commands to shutdown logic and generate either a normal shutdown command or a rapid shutdown command; andimplementing the normal shutdown procedure in response to generation of the normal shutdown command and implementing the rapid shutdown procedure in response to generation of the rapid shutdown command.