Superconducting Maglev Coil Fault Detection
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Solution Overview
Problem
Existing superconducting electrodynamic maglev systems face challenges in detecting the geometric regularity and magnetic field uniformity of sidewall discrete figure-8-shaped coils, which are prone to insulation deterioration and open-circuit faults due to exposure to environmental factors, necessitating a fault detection method that can simultaneously assess these parameters.
Innovation Solution
A fault detection device and method involving a frame system with a detection system that includes a lifting device, clamping device, permanent magnet array, and receiving coil connected to a signal processing device, allowing for non-contact detection of the magnetic field and geometrical regularity of the figure-8-shaped coil track by analyzing induced currents and signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the figure-8-shaped coil is installed outside the propulsion coil for levitation and guidance, then the maglev system can achieve stable operation, but the coil is directly exposed to outdoor environmental factors causing insulation deterioration and open-circuit faults
Solution Approach 1:
The patent implements fault detection before actual operation of the maglev train by using a detection device with receiving coils and signal processing equipment to identify potential insulation issues and open-circuit faults in the figure-8-shaped coil, allowing preventive maintenance before environmental factors cause failures during operation
2Measurement precision
If traditional detection methods are used for the figure-8-shaped coil, then the structure remains simple, but geometric regularity detection and magnetic field uniformity detection cannot be achieved simultaneously
Solution Approach 1:
The patent combines geometric regularity detection and magnetic field uniformity detection into a single integrated detection device. The device uses receiving coils positioned at specific locations to detect both the geometric arrangement of the figure-8-shaped coil and the uniformity of the magnetic field it generates, achieving dual detection functions simultaneously through a unified structural design
Solution Approach 2:
The detection device is designed with multi-functional capability to perform both geometric regularity detection and magnetic field uniformity detection using the same basic structure. The receiving coils and signal processing system serve multiple purposes: detecting coil geometry, assessing magnetic field distribution, and identifying potential faults, making the device universally applicable for comprehensive coil inspection
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time observation and detection of geometrical smoothness and magnetic field uniformity, facilitating the identification of faults in the figure-8-shaped coil tracks, ensuring stable operation of the maglev train by accurately analyzing magnetic field uniformity and geometric regularity.
Implementation Method 1
the magnetic field generated by the permanent magnet array is applied to the discrete figure-8-shaped coil track, and the coil at the periphery of the permanent magnet array is used as a receiving coil to capture the induced magnetic field generated by the induced current of the discrete figure-8-shaped coil
Data Source
AI summary
A fault detection device for a superconducting electrodynamic maglev track includes a frame system and a detection system. The frame system is provided between two sidewall discrete figure-8-shaped coil tracks, and is provided with a signal processing device. The detection system is provided on each side of the frame system, and includes a lifting device and a clamping device. The lifting device is configured to adjust a vertical height of the clamping device. The clamping device is provided at an outer side of the lifting device, and is provided with a first connection portion and a second connection portion, which are respectively connected to a permanent magnet array and a receiving coil. The second connection portion is provided at periphery of the first connection portion. The receiving coil is electrically connected to the signal processing device. A fault detection method is further provided.