Fuel cell system, control method of fuel cell system, and fuel cell control apparatus
AssigneeKYOCERA Corporation
InventorsMasaya Kojima, Yasunori Komada
Life of this patent
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Abstract
In order to provide means to improve an operating ratio and the like of a fuel cell while keeping using a gas meter and a gas leakage detection system popularly used by a general household, a fuel cell system of the disclosure herein including a fuel cell module configured to generate power by using gas supplied via a gas meter and a controller configured to control the power generation of the fuel cell module, wherein the controller, when detecting for a first predetermined period of time that the gas is not supplied to anything else other than the fuel cell module, controls to stop the power generation of the fuel cell module for a second predetermined period of time.
Claims18
A fuel cell system having a fuel cell module configured to generate power by using gas supplied via a gas meter and a controller configured to control power generation of the fuel cell module, the fuel cell system causes a gas leakage detection system to determine that there is no gas leakage by stopping gas supply via the gas meter for a second predetermined period of time within a predetermined number of days,
- wherein the controller controls to raise or maintain temperature of the fuel cell module when detecting for a first predetermined period of time that the gas is not supplied to anything else other than the fuel cell module,
- wherein the controller controls to stop the power generation of the fuel cell module for the second predetermined period of time when the fuel cell module is maintained at predetermined temperature or higher, and
- wherein the controller controls the fuel cell module to start the power generation when the fuel cell system is stopped for a third predetermined period of time, the third predetermined period of time is a maximum period of time that allows the fuel cell system to stop the gas supply so as to be in a standby state.
A control method of a fuel cell system having a fuel cell module configured to generate power by using gas supplied via a gas meter, the fuel cell system causes a gas leakage detection system to determine that there is no gas leakage by stopping gas supply via the gas meter for a second predetermined period of time within a predetermined number of days, the control method comprising the steps of:
- detecting for a first predetermined period of time that the gas is not supplied to anything else other than the fuel cell module;
- raising or maintaining temperature of the fuel cell module, when detecting for the first predetermined period of time that the gas is not supplied to anything else other than the fuel cell module;
- controlling to stop power generation of the fuel cell module for the second predetermined period of time, when the fuel cell module is maintained at predetermined temperature or higher;
- and
- starting the power generation by the fuel cell module, when the fuel cell system is stopped for a third predetermined period of time, the third predetermined period of time is a maximum period of time that allows the fuel cell system to stop the gas supply so as to be in a standby state.
A fuel cell control apparatus configured to control power generation of a fuel cell module that generates power by using gas supplied via a gas meter, the fuel cell control apparatus causes a gas leakage detection system to determine that there is no gas leakage by stopping gas supply via the gas meter for a second predetermined period of time within a predetermined number of days,
- wherein the fuel cell control apparatus controls to raise or maintain temperature of the fuel cell module when detecting for a first predetermined period of time that the gas is not supplied to anything else other than the fuel cell module,
- wherein the fuel cell control apparatus controls to stop the power generation of the fuel cell module for the second predetermined period of time when the fuel cell module is maintained at predetermined temperature or higher, and
- wherein the fuel cell control apparatus controls the fuel cell module to start the power generation when the fuel cell system is stopped for a third predetermined period of time, the third predetermined period of time is a maximum period of time that allows the fuel cell system to stop the gas supply so as to be in a standby state.
Dependencies are inferred from the claim text.