Low-temperature back-field magnet and high-temperature superconductive unit alternating-current loss measuring device

A low-temperature superconducting and measuring device technology, which is applied in the direction of magnetic performance measurement, magnetic objects, superconducting magnets/coils, etc., can solve the problems of inconvenient AC loss measurement, large error, and low magnetic field density, and achieve convenient adjustment of magnetic field strength , large range and high magnetic field density

Active Publication Date: 2019-06-11
CHINA ELECTRIC POWER RES INST
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Problems solved by technology

[0005] The invention provides a low-temperature back-field magnet and a high-temperature superconducting unit AC loss measuring device to overcome the problems of low magnetic field density of back-field magnets or inconvenient measurement of AC loss and large errors in existing back-field magnets

Method used

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  • Low-temperature back-field magnet and high-temperature superconductive unit alternating-current loss measuring device
  • Low-temperature back-field magnet and high-temperature superconductive unit alternating-current loss measuring device
  • Low-temperature back-field magnet and high-temperature superconductive unit alternating-current loss measuring device

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Embodiment Construction

[0056] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0057] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention provides a low-temperature back-field magnet and a high-temperature superconductive unit alternating-current loss measuring device. The low-temperature back-field magnet comprises a non-magnetic-conductive spacing layer, a left low-temperature superconductive coil magnetic body and a right low-temperature superconductive coil magnetic body, wherein the center of the non-magnetic-conductive spacing layer is provided with a through hole which is through along the radial direction; the left low-temperature superconductive coil magnetic body comprises M coil layers Ri sequentially sleeved coaxially; the coil layers Ri of the left low-temperature superconductive coil magnetic body are correspondingly connected in series with coil layers Li of the right low-temperature superconductive coil magnetic body to form a merged coil layer Wi, wherein the merged coil layer Wi and a merged coil layer W(i+1) are sequentially connected in series to form a whole coil; and in the using process, the whole coil is connected to the two sides of a direct-current power source, and a back magnetic field with preset intensity is generated in the through hole. According to the low-temperature back-field magnet, magnetic field density is high, and magnetic field intensity adjustment is convenient. Through the high-temperature superconductive unit alternating-current loss measuring device, measurement is convenient, flexible, fast and accurate.

Description

technical field [0001] The invention relates to the field of AC loss measurement of a superconducting unit, in particular to a low-temperature back field magnet and a device for measuring the AC loss of a high-temperature superconducting unit. Background technique [0002] High-temperature superconducting materials have the characteristics of no resistance and high critical current density, making them a technological breakthrough for power applications. The existence of AC loss will increase the burden of the refrigeration system in the high-temperature superconducting device, and its size is directly related to the efficiency, operating cost and stability of the superconducting device. Low AC loss and high stability are the basic requirements of power network for superconducting power devices. [0003] Due to the characteristics of high-temperature superconducting strips, the AC loss of superconducting strips will be affected when the high-temperature superconducting unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/00H01F6/06H01F6/04G01R33/12
Inventor 诸嘉慧王海洋张宏杰陈盼盼张会明赵勇青丘明杨艳芳
Owner CHINA ELECTRIC POWER RES INST
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