Method and system for regulating plasma stability of internal transport barrier in magnetic confinement fusion device by using non-resonant three-dimensional magnetic field

CN122197775APending Publication Date: 2026-06-12HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Filing Date
2026-03-13
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing technologies lack effective methods to suppress magnetohydrodynamic instabilities of the internal transport barrier plasma in magnetic confinement fusion devices, leading to confinement performance degradation and the risk of discharge collapse, which limits the stable realization of high confinement performance and the reliability of commercial operation.

Method used

The plasma with internal transport barrier is controlled by a non-resonant three-dimensional field. By establishing the target configuration, calculating the non-resonant mode spectrum, applying the three-dimensional field and inducing deformation and controlling the profile, magnetohydrodynamic instability is suppressed and plasma performance is improved.

Benefits of technology

It effectively suppresses magnetohydrodynamic instability, improves plasma confinement performance and temperature, avoids resonant penetration and mode-locking risks, widens the steady-state operating range of the device, and improves operational safety and steady-state capability.

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Abstract

The present application belongs to the field of magnetic confinement fusion technology, and discloses a method for controlling and improving the performance of internal transport barrier (ITB) plasma in a magnetic confinement fusion device by using a non-resonant three-dimensional field, wherein the magnetic fluid instability is efficiently suppressed by the method; the method can effectively suppress or control the magnetic fluid instability of the internal transport barrier plasma under an extremely high pressure gradient by precisely applying a non-resonant three-dimensional field, which solves the problems of plasma confinement performance degradation and transport barrier collapse caused by instability during the maintenance of the ITB, and significantly enhances the stability of plasma discharge; and the plasma confinement performance and temperature are further improved by the synergistic optimization of the ITB structure by the non-resonant three-dimensional field, so that the energy confinement performance of the plasma core is further improved under the premise of stability, the plasma temperature is further improved, and higher performance fusion parameters are obtained.
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