Superconductive Coil Performance Evaluation Apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for evaluating the performance of high-temperature superconductive coils fail to accurately simulate the actual use environment, leading to unreliable results and thermal, electromagnetic, and mechanical issues in second-generation superconductive rotary machines.
Innovation Solution
An apparatus and method that allow for adjustable refrigerant supply settings and voltage/current magnitudes to mimic the actual use environment of superconductive coils, incorporating hall sensors, temperature sensors, strain gauges, and a refrigerant circulation module to evaluate electromagnetic, thermal, and mechanical performance under a time-varying magnetic field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional testing methods using small-scale models or partial coils are employed, then device complexity is reduced, but measurement precision and reliability of performance evaluation deteriorate
Solution Approach 1:
The patent creates a simplified copy of the actual use environment by using a small-scale model rotor with superconductive coils that replicates the key electromagnetic and thermal characteristics of the full-scale system. This allows performance evaluation without requiring the complete, complex actual system while maintaining measurement validity through proper scaling and environmental simulation.
2Measurement precision
If a three-dimensional electromagnetic field analysis simulation is applied, then measurement precision is improved, but device complexity and computational requirements increase
Solution Approach 1:
The patent introduces a physical test apparatus as an intermediary between theoretical simulation and actual full-scale system testing. The apparatus provides a tangible platform that validates simulation results while being simpler to implement than full-scale testing, serving as a bridge that reduces reliance on complex three-dimensional electromagnetic field analysis.
3Ease of operation
If unrestricted refrigerant supply settings are implemented, then ease of operation is improved, but thermal stability control becomes more challenging
Solution Approach 1:
The patent implements a feedback control system that continuously monitors the operating temperature of the superconductive coil and adjusts the refrigerant supply rate accordingly. This allows the operator to set high-level cooling parameters easily while the automated feedback mechanism maintains precise thermal stability by dynamically compensating for temperature fluctuations.
4Reliability
If the evaluation environment is made identical to the actual use environment, then reliability of evaluation results is improved, but device complexity and operational constraints increase
Solution Approach 1:
The patent applies local quality by creating specific zones within the test apparatus that replicate critical aspects of the actual use environment (such as the magnetic field region, thermal zones, and mechanical stress areas) while keeping other parts of the system simplified. This allows high-reliability evaluation of superconductive coil performance under realistic conditions without requiring the entire apparatus to be as complex as the actual application system.
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 reliable evaluation of superconductive coil performance by simulating the actual operating environment, maintaining stable temperatures, and assessing critical current and operating limits, thereby improving the reliability and thermal stability of high-temperature superconductive coils.
Implementation Method 1
a bobbin disposed on a bottom surface of each of the superconductive coils to support and cool the superconductive coils
Implementation Method 2
each of the superconductive coils being provided on an outer circumferential surface thereof with a hall sensor to detect a magnetic field distribution characteristic
Implementation Method 3
each of the superconductive coils being provided on an outer circumferential surface thereof with a temperature sensor to detect a temperature distribution characteristic
Implementation Method 4
a three-phase armature winding configured to generate a three-phase time-varying magnetic field
Implementation Method 5
each of the superconductive coils being provided on an outer circumferential surface thereof with a strain gauge to detect a structural strain
Implementation Method 6
superconductive coils which are mounted symmetrically on one side and the other side of an inner circumferential surface of a rotor
Data Source
AI summary
The present invention relates to a device for evaluating the performance of a superconductive coil for a high-temperature superconductive rotary machine and a method for evaluating the performance of a superconductive coil thereby. The technical gist of the present invention is to provide schemes for evaluating the stability of a superconductive coil and verifying the reliability thereof, to evaluate/confirm whether or not the same can be commercialized, and to evaluate/confirm the threshold current of a superconductive wire for manufacturing a superconductive coil or the upper limit of the operating current thereof, and is characterized in that the electromagnetic, thermal, and mechanical performances of a superconductive coil for a second-generation high-temperature superconductive rotary machine can be evaluated. The present invention, configured as above, is characterized in that refrigerant supply setup can be freely varied during cooling of a bobbin for cooling a superconductive coil, the magnitude of the electric current through an outer stator can be easily changed according setup control, thereby making it possible to differently adjust the magnitude of a time-variant magnetic field applied to the superconductive coil, and it accordingly becomes possible to set and control an evaluation environment identical to the actual use environment in which the superconductive coil is to be used, thereby securing the reliability of evaluation of performance of the superconductive coil.