Composite quench protection circuit suitable for superconducting magnet
A superconducting magnet, quench protection technology, applied in the usage of superconductor elements, emergency protection circuit devices, electrical components, etc., can solve problems such as coil burnout, insulation damage, etc., to avoid oscillation attenuation, complete functions, and independent circuits. Effect
Inactive Publication Date: 2014-09-24
SOUTHEAST UNIV
View PDF3 Cites 9 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Once quenched, the energy in the superconducting magnet must be released, otherwise, the insulation will be damaged, the coil will be burned, and even more serious accidents will be induced
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] Such as figure 1 Shown is a compound quench protection circuit suitable for superconducting magnets, designed automatic quench protection circuit, overvoltage protection circuit, sensitive protection circuit, automatic energy transfer type energy release circuit and alarm device for superconducting The magnet performs quench protection, which will be described in detail in conjunction with the circuit schematic diagram of each part.
[0023] Such as figure 2 As shown, the automatic quench protection circuit includes a parallel piezoresistor RZ and a voltage regulator tube ZD, and the automatic quench protection circuit is connected in parallel with the superconducting magnet; the piezoresistor RZ detects the terminal voltage of the superconducting magnet, When the terminal voltage of the superconducting magnet exceeds the threshold value of the piezoresistor ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention discloses a composite quench protection circuit suitable for a superconducting magnet. The quench protection is carried out on the superconducting magnet by designing an automatic quench protection loop, an overvoltage protection loop, a sensitive protective circuit and an automatic energy transfer type energy releasing loop. According to the composite quench protection circuit suitable for the superconducting magnet provided by the present invention, the physical mediums of loops are independent, do not interfere with one another, and can be combined together effectively to form the multi-angle and multi-layer composite quench protection, thereby having the advantages of fast response, strong stability, high sensitivity, etc. With the application of an electromagnetic type voltage relay and a current relay, a technology of relay protection is fused with a quench phenomenon, thereby improving the sensitivity and accuracy of the quench protection action. The energy releasing loop transfers the electromagnetic energy in the superconducting magnet at once, thereby shortening the energy releasing time substantially, avoiding the oscillation attenuation process of the electric energy in the conventional energy-releasing loop, reducing the impact to the superconducting magnet effectively, and solving the impact to the superconducting magnet in principle.
Description
technical field [0001] The invention relates to a composite quench protection circuit suitable for superconducting magnets, which comprehensively utilizes various circuits to perform quench protection on superconducting magnets. Background technique [0002] With the development of superconducting technology, especially the discovery of high-temperature superconducting materials, the environmental indicators required for superconducting operation have been technically improved, greatly promoting the development of superconducting applications. However, the conditions required for superconducting operation such as temperature, current density and electromagnetic strength are still harsh, which are key factors that determine the development of superconducting applications. [0003] Due to its special physical properties, a normally operating superconducting magnet can not only carry a large amount of electric energy, but also can form a strong magnetic field, store and release...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/00
CPCY02E40/60
Inventor 余海涛董坤胡敏强黄磊闻程仲伟波孟高军
Owner SOUTHEAST UNIV