Superconducting magnet quench detection method and device
A technology of superconducting magnet and detection method, applied in superconducting performance measurement, magnetic performance measurement and other directions, can solve problems such as quench detection of superconducting magnet
Active Publication Date: 2021-02-23
CHINA ELECTRIC POWER RES INST +2
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Based on this, in order to solve the problem of quench detection of superconducting magnets, the present invention provides a quench detection method and device for superconducting magnets to detect the power quench state of the unit coil and the voltage quench state and temperature quench of the single coil state
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
[0109]The present invention will be further described in detail below with reference to the accompanying drawings.
[0110]The present invention provides a superconducting magnet loss detection method, such asfigure 1 The superconducting magnet is arranged by 16 unit coils, and the unit coil is formed in series, and temperature probe and lead are mounted on each monomer coil;figure 2The method includes:
[0111]The present invention provides a superconducting magnet loss detection method, the method comprising:
[0112]Detect each cell coil voltage and current in real time;
[0113]According to the voltage and current of each unit coil, the power difference of the two adjacent cell coils is calculated, and the power difference absolute value of the unit coil and the adjacent cell coil is obtained;
[0114]If the power difference absolute value of the unit coil and the adjacent two coils is larger than the power loss ultra-threshold, it is judged that the unit coil is in the power loss premium stat...
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 invention provides a superconducting magnet quenching detection method and a superconducting magnet quenching detection device. The method comprises the following steps: detecting the voltage and current of each unit coil in real time; calculating the power difference between two adjacent unit coils, and calculating the absolute values of power differences between any unit coil and the two adjacent unit coils thereof; and if the absolute values of power differences between any unit coil and the two adjacent unit coils thereof are greater than a power quenching threshold, judging that the unit coil is in a power quenched state. Whether the power of each unit coil is quenched is detected, and the unit coils in a power quenched state are positioned accurately through comparison. Whether the voltage and temperature of each single coil are quenched is detected, and the single coils in a voltage and temperature quenched state are positioned accurately through step-by-step comparison. Electrical quantity detection and non-electrical quantity detection are combined, and the defect of a single quenching detection method is overcome. Meanwhile, a voltage correction coefficient is introduced, and the reliability of superconducting magnet quenching detection is improved greatly.
Description
Technical field[0001]The invention relates to a quench detection method, in particular to a quench detection method and device for a superconducting magnet.Background technique[0002]Superconducting energy storage systems can be used in power systems to improve system stability, improve power supply quality, store electrical energy and improve power output characteristics in distributed power systems containing new energy sources such as solar and wind energy, and can also be used for emergency applications in important devices backup power. These excellent properties of superconducting energy storage systems will bring immeasurable technical and economic benefits in the power system. The application of superconducting energy storage systems in power systems will also bring about some problems that must be solved. Among them, the quench of superconducting magnets is one of the key issues affecting the safe and stable operation of superconducting energy storage systems.[0003]Supercond...
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 Patents(China)
IPC IPC(8): G01R33/12
CPCG01R33/1238
Inventor 陈盼盼诸嘉慧丘明张宏杰刘二伟
Owner CHINA ELECTRIC POWER RES INST