The present invention relates to a fuel cell system to reduce freezing of condensate in an air discharge line. According to the present invention, the fuel cell stack comprises: a fuel cell stack generating electricity and water by an electrochemical reaction between hydrogen and air; a coolant circulation loop including a coolant circulation flow path circulating a coolant for cooling the fuel cell stack, a heat exchanger for cooling the coolant circulated through the coolant circulation flow path, and a circulation pump for circulating the coolant through the coolant circulation flow path; and a control unit, when the fuel cell stack is operated at an output less than a predetermined output, performing idle control to maintain the temperature of discharge gas discharged from the fuel cell stack at T2, wherein T2 is lower than T1 which is the temperature of the discharge gas discharged from the fuel cell stack when the fuel cell stack is operated at the output less than the predetermined output and the control unit does not perform the idle control.

    본 발명에 따른 연료전지 시스템은, 수소와 공기의 전기 화학적 반응으로 전력과 물을 생성하기 위한 연료전지 스택과, 연료전지 스택을 냉각시키기 위한 냉각수가 유통되게 마련되는 냉각수 순환유로와, 냉각수 순환유로로 유통되는 냉각수를 냉각시키기 위한 열교환기와, 냉각수 순환유로로 냉각수를 순환시키기 위한 냉각수 순환펌프를 포함하는 냉각수 순환루프와, 연료전지 스택이 기 설정된 출력 미만으로 구동 시, 연료전지 스택에서 배출되는 배출가스의 온도가 T2가 되도록 하기 위해 아이들 제어(idle control)를 수행하는 제어부를 포함한다. T2는, 연료전지 스택이 기 설정된 출력 미만으로 구동되고 제어부가 아이들 제어를 수행하지 않을 시 연료전지 스택에서 배출되는 배출가스의 온도인 T1보다 낮은 온도이다.


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    Title :

    FUELCELL SYSTEM METHOD FOR CONTROLLING THEREOF AND FUEL CELL VEHICLE


    Additional title:

    연료전지 시스템, 연료전지 시스템의 제어방법, 및 연료전지 차량


    Contributors:

    Publication date :

    2020-05-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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



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