Toyota Jidosha Kabushiki Kaisha

Aisin Seiki Kabushiki Kaisha

Nobuki Hattori

Takashi Ishikawa

Osamu Nakanishi

Naomichi Akimoto

Takeshi Masui

Shigenori Onuma

Koichiro Hara

Shiroh Yamasaki

In a fuel cell power generation system that includes a fuel cell that generates power by an electrochemical reaction with a supply of a fuel gas and an oxide gas, a control portion that controls the amount of power generated by the fuel cell, and a hot portion that is hot while the system is operating, the control portion and the hot portion are disposed separated from one another in the same package. Accordingly, even though the control portion and the hot portion are housed within the same main package, the control portion is not easily effected by the hot portion while the system is operating because it is separated from the hot portion. As a result, the control portion is able to perform its function well.

Fuel cell power generation system

When power failure of a commercial power source is detected, an inverter interrupts power supply to a power line extending between the commercial power source and a load via a circuit breaker. Then the control mode of a load DC&#x2014;DC converter is changed to a constant voltage control to maintain stable operation of a fuel cell. This allows the accessory DC&#x2014;DC converter to supply power to accessories used for operating the fuel cell power generation system. Also, the quantity of city gas to be supplied to a reformer is changed to a quantity necessary for the fuel cell to generate power for driving the accessories. This makes it possible to avoid excessive production of hydrogen, thus improving energy efficiency of the fuel cell power generation system.

Fuel cell power generation system and control method thereof

Growing community of inventors

Nagoya, Japan

Nobuki Hattori