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液压系统在矿山开采装备中发挥着重要的作用。为了对液压系统的运行状态进行有效的评估和诊断,利用三相电机的定子电流信号对液压系统的故障进行了分析,并采用自适应小波包分解作为特征提取方法从电流信号中提取设备的故障特征。通过试验结果证明了所提方法有效性。
Hydraulic system plays an important role in mining equipment. In order to effectively evaluate and diagnose the operating status of the hydraulic system, the fault of the hydraulic system is analyzed by using the stator current signal of the three-phase motor, and the adaptive wavelet packet decomposition is used as the feature extraction method to extract the fault of the equipment from the current signal feature. The experimental results show the effectiveness of the proposed method.