In-situ monitoring system for composite motor components based on optical fiber sensing

By adopting distributed fiber sensor network and self-diagnosis and self-repair technology in the electro-excitation coreless motor, the problem of composite component detection in the existing technology is solved, and real-time monitoring and automatic repair of the structural health status of the electro-excitation coreless motor is realized, and the accuracy of detection and anti-electromagnetic interference capability are improved.

CN116363852BActive Publication Date: 2025-03-28INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202211597396.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-12
Publication Date
2025-03-28
Estimated Expiration
2042-12-12

AI Technical Summary

Technical Problem

The prior art relies on manual labor for the health detection of electro-excited iron-coreless motor composite components, which is low in efficiency, low accuracy, and cannot self-diagnosis and self-repair. Especially in an environment with strong electromagnetic interference, the reliability of detection data is affected.

Method used

The in-situ monitoring system of motor composite components based on fiber optic sensing is adopted to detect the strain, temperature, load, vibration, pressure and other parameters of composite components in real time through a distributed fiber optic sensor network, and combine self-diagnosis and self-repair functions to realize the structural health status monitoring and automatic repair of the electro-excited iron-free motor.

Benefits of technology

Real-time and accurate detection of composite components of electro-excited iron-free motors is achieved, and the problems of low efficiency, low accuracy and poor anti-electromagnetic interference of traditional detection methods are overcome. It has self-diagnosis and self-repair functions to ensure the normal operation and safety of the motor.

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Abstract

The present invention belongs to the field of structural detection of electrically excited coreless motors, and specifically relates to an in-situ monitoring system for composite material components of motors based on optical fiber sensing, which aims to solve the problems of the existing technology that the electric excited coreless motor has a high dependence on manual labor, low efficiency, low accuracy of detection data, and the inability to self-diagnose and self-repair component failures. The present invention includes: the electrically excited coreless motor to be monitored includes a composite material component provided with a distributed optical fiber sensor network; the light source and the state monitoring module are used to detect the light source and the receiving light source of the system; the transmission optical fiber converts the transmitting light source into an optical signal and sends it to the smooth ring rotor; the smooth ring rotor sends the optical signal to the smooth ring stator through a coupler; the smooth ring stator sends the optical signal to the optical fiber Bragg grating demodulator for optical signal analysis to obtain the state of the composite material component. The composite material of the present invention can perform fault self-diagnosis and self-repair, and the distributed sensing realizes high-precision and high-accuracy detection of composite material components.
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