The invention discloses a compressor control method of a variable frequency air conditioner of a railway vehicle. During startup and shutdown control, the temperature difference is used as a judgmentcondition, and the total running time or the continuous running time is added as a judgment condition, so that the compressor can be started immediately, capacity output can be performed quickly, thetarget temperature in the passenger room can be reached quickly, and matching of startup and shutdown of the compressor and actual requirements in the passenger room is realized; when the operation frequency is controlled, the duration time is also increased as a judgment condition; the operation frequency of the compressor is continuously adjusted according to the change of the heat load in the passenger room; the output capacity of the air conditioner is optimal; the actual temperature in the passenger room is always stabilized within the range of +/-1 DEG C of the indoor target temperature,so that the phenomenon of passenger room temperature fluctuation caused by frequent opening and closing of the compressor can be reduced, the passenger room is more comfortable and energy-saving, meanwhile, the operation frequency of the compressor is matched with the actual requirement in the passenger room, and the influence on the service life of the compressor is reduced.

    本发明公开了一种轨道车辆变频空调的压缩机控制方法,在开关机控制时,不仅以温差作为判断条件,还增加了总运行时间或持续运行时间作为判断条件,使压缩机可以立即开启,且迅速进行能力输出,使客室内快速达到目标温度,实现了压缩机的启停与客室内实际需求的匹配;在运行频率的控制时,也增加了持续时间作为判断条件,根据客室内热负荷的变化不断调整压缩机的运行频率,使空调的输出能力达到最优,使客室内实际温度始终稳定在室内目标温度±1℃范围内,这样既可以减少压缩机的频繁开关造成客室温度波动现象,又可以使客室更加舒适和节能,同时使压缩机的运行频率与客室内实际需求匹配,减少了对压缩机寿命的影响。


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    Title :

    Compressor control method of rail vehicle variable-frequency air conditioner


    Additional title:

    一种轨道车辆变频空调的压缩机控制方法


    Contributors:
    XIAO FENGMIN (author) / YI KE (author) / YANG TIANZHI (author) / XU YUWEN (author) / CHEN SHIWEN (author) / WANG ZHENG (author) / LYU ZHIMEI (author) / LI YUEZHONG (author) / DING QIANZHUANG (author)

    Publication date :

    2020-08-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS



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