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Device and method for measuring superconducting magnet alternating current losses

A technology for superconducting magnets and AC loss, which is applied in measurement devices, measurement of electrical variables, dielectric properties measurement, etc., can solve problems such as the limitation of AC loss of superconducting magnets, and achieve the effect of simple operation process

Pending Publication Date: 2018-11-13
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0006] Aiming at the above defects or improvement needs of the prior art, the present invention provides a device and method for measuring the AC loss of superconducting magnets, thereby solving the technical problem of limitations in measuring the AC loss of superconducting magnets by electrical measurement

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  • Device and method for measuring superconducting magnet alternating current losses
  • Device and method for measuring superconducting magnet alternating current losses
  • Device and method for measuring superconducting magnet alternating current losses

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0033] The invention provides a device for detecting the AC loss of a superconducting magnet working under an arbitrary waveform, which can directly and quickly measure the AC loss of the superconducting magnet, and avoids the cumbersome operation process when using a lock-in amplifier for measurement . Utilize the detection device of the present invention to measure the AC loss of the supercon...

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Abstract

The invention discloses a device and a method for measuring alternating current losses under a superconducting magnet alternating current condition. The device mainly comprises a data acquisition module and a processing and display module. The core component of the data acquisition module is a data acquisition card used for collecting voltage and current signals when a superconducting magnet to bedetected works. Through LabVIEW software, the software and hardware online control of the data acquisition card and the processing and display module is realized, and the collected voltage and current signals are transmitted to the processing and display module. In the processing and display module, an energy calculating formula which is a voltage and current integral formula is used to process received data, the total energy change of the superconducting magnet acquired through calculation is used to subtract the energy change of the equivalent inductance of the superconducting magnet to bedetected so as to acquire the alternating current loss measurement result of the superconducting magnet to be detected. In the invention, problems that a speed is slow, operation is complex, only small coils can be measured and so on in an existing alternating current loss measurement method are solved.

Description

technical field [0001] The invention belongs to the technical field of superconducting power, and more specifically relates to a measuring device and method for AC loss of a high-temperature superconducting magnet under arbitrary current waveform working conditions. Background technique [0002] Superconducting power technology is of great significance and has broad application prospects in realizing the lightweight, miniaturization, low energy consumption of power devices and improving the safety, stability and power quality of power systems. Major innovation. [0003] A superconductor that transmits direct current without Joule heat loss. When a superconductor is placed in a time-varying magnetic field, or when a time-varying electric current is transmitted, a superconductor experiences loss, which is called the AC loss of the superconductor. AC loss is an inevitable problem in the application of high-temperature superconducting power: superconducting magnets working und...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26
CPCG01R27/2694Y02E40/60
Inventor 朱凯任丽唐跃进郭树强徐颖张宇梁思源
Owner HUAZHONG UNIV OF SCI & TECH
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