The invention belongs to the technical field of electronic circuits, and relates to a current fault positioning method for a helicopter rotor anti-icing and de-icing system. Due to the particularity that the main blade is long and large in deformation, no matter in an open circuit or a short circuit, a fault cannot be positioned in time when the main blade rotates through static measurement. According to the invention, if the current is zero all the time in the heating process, the fault is positioned to the anti-icing and deicing distribution box and the main paddle collector ring assembly; otherwise, the same partitions of all the paddles are heated in sequence, and the partition with the fault is judged according to whether the total current of the current sensor is abnormal or not; the main paddle distributor is controlled to heat all the paddles in sequence, and the paddles with faults are judged according to whether the total current of the current sensor is abnormal or not; if the total current during heating is higher than the rated current, determining that the anti-icing and de-icing heating assembly has a fault; if the total current during heating is lower than the rated current and the power switch monitoring circuit detects the peak voltage, determining that the anti-icing and de-icing heating assembly has a fault; and if the total current during heating is lower than the rated current and the power switch monitoring circuit does not detect the peak voltage, the main paddle distributor breaks down. Faults are accurately determined through comprehensive current monitoring and power switch output monitoring, the replacement and maintenance time of products is shortened, and the maintainability, testability and supportability of the products are improved.

    本发明属于电子电路技术领域,涉及一种直升机旋翼防除冰系统电流故障定位方法。由于主桨叶的特殊性为叶片长且变形量大,无论是断路还是短路,静态测量无法实现在主桨叶转动时及时定位故障。本发明若加热过程中电流始终为0,则故障定位至防除冰配电盒和主桨集流环组件;否则依次对各桨叶的相同分区进行加热,依据电流传感器的总电流是否异常来判断发生故障的分区;控制主桨配电器对所有桨叶依次加热,依据电流传感器的总电流是否异常来判断发生故障的桨叶;若加热时总电流高于额定电流,则为防除冰加热组件故障;若加热时总电流低于额定电流,且功率开关监控电路检测到尖峰电压,则为防除冰加热组件故障;若加热时总电流低于额定电流,且功率开关监控电路未检测到尖峰电压,为主桨配电器故障。通过综合电流监控和功率开关输出监控来精确确定故障,降低了产品的更换和维修时间,提高了产品的维修性、测试性和保障性。


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    Titel :

    Helicopter rotor anti-icing and de-icing system current fault positioning method


    Weitere Titelangaben:

    一种直升机旋翼防除冰系统电流故障定位方法


    Beteiligte:
    ZHANG ZONGZHE (Autor:in) / WU SHILIANG (Autor:in) / WEI TAO (Autor:in) / CHEN ZHUO (Autor:in)

    Erscheinungsdatum :

    18.02.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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