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Water-cooled magnet safety protection method

A safety protection and water-cooling technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve problems that are not clearly explained, and achieve good fit and versatility

Inactive Publication Date: 2017-06-27
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above water-cooled magnet fault detection methods are different and have their own characteristics, there are two problems that have not been explained clearly

Method used

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  • Water-cooled magnet safety protection method
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Embodiment Construction

[0029] specific implementation

[0030] The specific embodiment of the present invention is explained in further detail below in conjunction with accompanying drawing:

[0031] figure 1 It is the protection process for the water-cooled magnet when it is running for the first time, including:

[0032] Step 101: Divide the working current of the water-cooled magnet at equal intervals from the minimum value to the maximum value, and determine the working current set I of the water-cooled magnet i (i=1,2,...,n, n≥5), where I 1 is the minimum operating current, I n is the maximum operating current.

[0033] Step 102: The cooling water flow rate and the magnet inlet water temperature remain constant, and the operating current of the water-cooled magnet is changed from the minimum value I 1 Step up to the highest current I n period.

[0034] Step 103: Collect the running parameters of the water-cooled magnet, including operating current, coil terminal voltage, cooling water in...

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Abstract

The invention discloses a water-cooled magnet safety protection method. The method comprises steps of determining a water-cooled magnet working current set in accordance with the principle of small to large order and equal spacing before the first powered operation of the water-cooled magnet; when the water-cooled magnet is operated for the first time, energizing the water-cooled magnet according to the determined working current; collecting the running parameters of the water-cooled magnet and filtering the collected data; in the first calibration operation, establishing the protection strategy of the water-cooled magnet by using the linear relationship between the water-cooled magnet coil resistance and its power consumption, and performing primary effective protection to the water-cooled magnet; adopting a water-cooled magnet coil resistance polynomial model to perform calibration fitting and formulating a mathematical expression of the water-cooled magnet coil resistance; and determining the water-cooled magnet failure judgment mechanism based on the established mathematical model of the water-cooled magnet coil resistance, and protecting the water-cooled magnet in the actual operation after calibration. The method is good in fitting performance and versatility.

Description

technical field [0001] The invention relates to the technical field of protection of special equipment and devices, in particular to a water-cooled magnet safety protection method aiming at steady state and having ultra-high field strength. Background technique [0002] Ultra-high-power water-cooled magnets can provide stable high-intensity magnetic field experimental conditions for scientific research. Among them, water-cooled magnet coils, high-power high-stable power supplies, and high-power cooling water systems are all in extreme working conditions. Therefore, the water-cooled magnet safety protection system is an indispensable and important system to ensure the safe and reliable operation of the entire magnet device, so that the device can automatically enter a safe state when there is a failure or potential danger. The protection method is the core of the water-cooled magnet safety protection system. [0003] Corresponding fault detection methods and systems are used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/00
CPCH02H7/00
Inventor 李云飞张俊李芳吴海峰黎伟吴仲城
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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