Fuel cell system and control method of same

A fuel cell system includes a supply channel having first channels respectively connected with tanks, and a second channel merged with each of the first channels; first on-off valves of the first channels; a second on-off valve of the second channel; and a controller configured to control opening and closing of the first on-off valves and the second on-off valve. In a state where the second on-offvalve is closed, the controller supplies first electric power used for opening the first on-off valve against a first differential pressure to at least one first on-off valve, and supplies second electric power, smaller than the first electric power and used for opening the first on-off valves against a second differential pressure smaller than the first differential pressure, to the first on-offvalves other than the at least one first on-off valve. 一种燃料电池系统包括：供给通道，其具有分别与罐连接的第一通道和与第一通道中的每个第一通道交汇的第二通道；第一通道的第一开关阀；第二通道的第二开关阀；以及控制器，其被配置成控制第一开关阀和第二开关阀的打开和关闭。在第二开关阀关闭的状态下，控制器向至少一个第一开关阀供给用于抵抗第一差压来打开第一开关阀的第一电力，并且向除了所述至少一个第一开关