US 12,249,433 B2
Coordinated fueling system and method satisfying thousand-second pulsed plasma discharge
Yuntao Song, Hefei (CN); Jiansheng Hu, Hefei (CN); Guizhong Zuo, Hefei (CN); Bin Cao, Hefei (CN); Jinhua Wu, Hefei (CN); Jilei Hou, Hefei (CN); Jingsheng Yuan, Hefei (CN); Yue Chen, Hefei (CN); Yaowei Yu, Hefei (CN); Ming Huang, Hefei (CN); and Xianzu Gong, Hefei (CN)
Assigned to HEFEI INSTITUTES OF PHYSICAL SCIENCE, CHINESE ACADEMY OF SCIENCES, Hefei (CN)
Filed by HEFEI INSTITUTES OF PHYSICAL SCIENCE, CHINESE ACADEMY OF SCIENCES, Hefei (CN)
Filed on Apr. 19, 2024, as Appl. No. 18/640,934.
Claims priority of application No. 202310436716.5 (CN), filed on Apr. 23, 2023.
Prior Publication US 2024/0312645 A1, Sep. 19, 2024
Int. Cl. G21B 1/15 (2006.01); G21B 1/05 (2006.01)
CPC G21B 1/15 (2013.01) [G21B 1/057 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A coordinated fueling method for establishing a thousand-second pulsed plasma discharge based on a fueling system comprising:
a first gas puffing system, a second gas puffing system, a third gas puffing system, each gas puffing system comprising a piezoelectric valve configured to adjust a gas flow of the respective gas puffing system;
a first supersonic molecular beam injection system, a second supersonic molecular beam injection system, each supersonic molecular beam injection system comprising a Laval nozzle; and
a magnetic confinement fusion device comprising a low hybrid wave-ion cyclotron wave antenna having a gas puffing port, a divertor configured to discharge a fusion ash and comprising a target plate, and an electrically neutral plasma;
the first gas puffing system being provided at a mid-plane of the fusion device, the second gas puffing system being provided at the gas puffing port of the wave antenna, the third gas puffing system being provided at the target plate;
the first supersonic molecular beam injection system being provided at the mid-plane of the fusion device; the second supersonic molecular beam injection system being provided at the divertor;
the coordinated fueling method comprising:
establishing, by the first gas puffing system, the plasma by injecting a first part of gas required for plasma discharge, and adjusting, by the second gas puffing system, boundary parameters of the plasma in a scrape-off layer at the wave antenna to improve a coupling efficiency between a lower hybrid wave and an ion-cyclotron wave;
performing, by the first supersonic molecular beam injection system, feedback control on a density of the plasma, and fueling, by the first supersonic molecular beam injection system, to maintain the plasma; and
performing, by the third gas puffing system and the second supersonic molecular beam injection system, feedback control of a heat flux of the divertor, thereby establishing the thousand-second plasma discharge.