公开(公告)号：US20180145351A1

公开(公告)日：2018-05-24

申请号：US15795084

申请日：2017-10-26

Applicant: General Electric Company

Inventor： Honggang WANG ,  Xiangdong KONG ,  Andrew Philip SHAPIRO ,  Patrick CARROLL ,  John Guido PICCIRILLO

IPC: H01M8/04089 ,  H01M8/04537 ,  H01M8/04858 ,  H01M8/04746 ,  H01M8/04303

CPC classification number: H01M8/04097 ,  H01M8/04104 ,  H01M8/04303 ,  H01M8/04559 ,  H01M8/04753 ,  H01M8/04843 ,  H01M8/0491 ,  H01M8/0618

Abstract: A fuel cell system is disclosed, which includes an anode recirculation loop including a fuel cell stack for generating power, a fuel supply device for providing a fuel to the anode recirculation loop, an air supply device for providing air to a cathode of the fuel cell stack, a voltage monitoring device for monitoring a voltage of the fuel cell stack, and an anode protection controller. The anode protection controller decreases a current drawn from the fuel cell stack by a predetermined amount whenever the voltage of the fuel cell stack drops below a predetermined voltage threshold and decreases a fuel flowrate provided to the anode recirculation loop based on the decreased current, so as to maintain a steam to carbon ratio in the anode recirculation loop above a predetermined steam to carbon ratio limit. A shutdown method for the fuel cell system are also disclosed.