面向矿用传送装置电机的过流检测方法、系统及设备

By analyzing the correlation and spectral characteristics of the output current signal of the motor of the mining conveyor and the torque and speed signals, the current signal was screened and reconstructed, solving the detection accuracy problem caused by electromagnetic interference and achieving higher overcurrent detection accuracy.

CN122084963BActive Publication Date: 2026-07-17SHANDONG LINENG LUXI MINING IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG LINENG LUXI MINING IND CO LTD
Filing Date
2026-04-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the complex underground environment, electromagnetic interference reduces the accuracy of overcurrent detection for motors used in mining conveyors, and existing methods are insufficient to effectively eliminate noise components.

Method used

By analyzing the correlation and spectral characteristics of the modal components of the motor output current signal with the torque and speed signals, the true current components are screened out, and noise components are eliminated using signal reconstruction methods, thereby improving the accuracy of overcurrent detection.

Benefits of technology

It effectively eliminates electromagnetic interference noise components and retains the true current components, thus improving the accuracy of overcurrent detection for motors in mining conveyor systems.

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Abstract

本申请涉及测量电变量技术领域,具体涉及面向矿用传送装置电机的过流检测方法、系统及设备,该方法包括:获取矿用传送装置电机的输出电流信号、电机转速信号以及电机转矩信号;分析矿用传送装置电机输出电流信号的各模态分量分别与电机转矩信号、电机转速信号之间的相关关系,以获取各模态分量的相关性特征值,再利用输出电流信号的各模态分量在频域的频谱分布均匀特征,计算各模态分量的频谱连续特征值,进而得到各模态分量的保留系数,对输出电流信号的模态分量进行筛选,利用筛选出的模态分量进行信号重构得到重构输出电流信号;根据重构输出电流信号对矿用传送装置电机进行过流检测。本申请可提高过流检测精度。
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