PROBLEM TO BE SOLVED: To prevent a cell from being excessively dried in a fuel battery system in which temperature rising is performed.SOLUTION: The present invention relates to a fuel battery system comprising: a fuel battery stack; a first thermometer for measuring a first temperature value; a power generation voltage meter for measuring a power generation voltage; a cell voltage meter; and a control part which controls a temperature adjustment mechanism in such a manner that a temperature of the fuel battery stack rises. In a case where a cell voltage is lower than a predetermined voltage value, the control part starts temperature rising of the fuel battery stack. After the temperature rising is started and the first temperature value reaches a first reference temperature, in a case where at least one of multiple time measurement conditions is satisfied, a time during which a difference obtained by subtracting the cell voltage from an average voltage of cells is maintained equal to or lower than a predetermined voltage difference is measured. In a case where the measured time exceeds a first reference time, the temperature rising is finished. The condition is the lapse of a predetermined time from the end of warm-up operation, intermittent operation and regenerative brake or shift of the fuel battery stack to a power generation enabled state.SELECTED DRAWING: Figure 4
【課題】昇温を行う燃料電池システムにおいて、セルが過度に乾燥することを抑制する。【解決手段】燃料電池スタックと第1温度値を計測する第1温度計と発電電圧を計測する発電電圧計とセル電圧計と温度調整機構を制御して燃料電池スタックを昇温させる制御部、を備える燃料電池システム。制御部は、セル電圧が予め定められた電圧値未満である場合に燃料電池スタックの昇温を開始し、昇温の開始後第1温度値が第1基準温度に到達した後、複数の時間計測条件のうち少なくとも一つが満たされる場合に、セルの平均電圧からセル電圧を引いた差が予め定められた電圧差以下に維持された時間を計測し、計測された時間が第1基準時間を経過した場合に昇温を終了する。条件は、暖気運転、間欠運転、回生制動が終了、又は燃料電池スタックが発電可能な状態に移行してから、予め定められた時間が経過したという条件である。【選択図】図4
FUEL BATTERY SYSTEM
燃料電池システム
2018-02-01
Patent
Electronic Resource
Japanese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
FUEL BATTERY SYSTEM AND FUEL BATTERY SYSTEM CONTROL METHOD
European Patent Office | 2023
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