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本文利用傅里叶分析的方法和相关分析的方法测到了MHD磁扰动信号的极向模数m=1、2、3、4和环向模数n。研究了HL-1装置等离子体MHD不稳定特征和抑制不稳定性的若干方法及结果。对于放电起始阶段的MHD特征对放电全过程的影响进行了分析。认为HL-1装置的破裂不稳定性分为三种:内破裂、小破裂、大破裂。内破裂的出现是HL-1进入较好的运行状态的一个标志。最后,,给出了HL-1装置的稳定运行区域。
In this paper, using the method of Fourier analysis and correlation analysis method to measure the MHD magnetic disturbance signal polar modulus m = 1,2,3,4 and ring modulus n. The MHD instability characteristics of HL-1 plasma and some methods to suppress instability were studied. The influence of the MHD characteristics at the initial stage of discharge on the whole discharge process was analyzed. HL-1 device that the rupture instability is divided into three types: internal rupture, small rupture, large rupture. The appearance of an internal rupture is a hallmark of the HL-1’s better run. Finally, the stable operating area of the HL-1 unit is given.