A method and system for increasing the threshold of the excited new classical tearing mode specific pressure
By establishing an internal transport barrier structure in the plasma radius direction and adjusting its position and strength to form a stable pressure profile, the problems of high energy consumption and system complexity in existing technologies are solved, enabling active preventive control of the neoclassical tearing mode and improving the stability and power output of the fusion device.
CN122417482APending Publication Date: 2026-07-17HUAZHONG 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
- 2026-04-20
- Publication Date
- 2026-07-17
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Figure CN122417482A_ABST
Abstract
The present application belongs to the technical field of new classical tearing mode suppression, and discloses a method for improving the excitation threshold of a new classical tearing mode, which fundamentally improves the threshold, changes "suppression" to "avoidance": instead of externally interfering with the formed magnetic island, the method optimizes the internal state of the plasma to improve its resistance to the excitation of the new classical tearing mode, fundamentally broadens the stable operation interval of the device, and avoids instability. High energy utilization efficiency and significant economy: the heating power required to establish and maintain the internal transport barrier is much lower than the RF current driving power required to completely suppress a saturated new classical tearing mode magnetic island. This part of energy is mainly used to improve the plasma performance (high temperature and high confinement), rather than "repair" instability, and the energy utilization efficiency and economy are greatly improved.
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