Closed-loop control of ionization oscillations in Hall accelerators
Closed-loop control of ionization oscillations in Hall accelerators
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DOI：
10.1063/1.3622655
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发表时间：
2011-08
影响因子：
2.2
通讯作者：
S. Barral;J. Kaczmarczyk;J. Kurzyna;M. Dudeck
中科院分区：
文献类型：
--
作者：
S. Barral;J. Kaczmarczyk;J. Kurzyna;M. Dudeck
本文研究了霍尔加速器电离振荡的反馈控制问题。发现电流的稳定性通过比例控制系统地改善，而积分和微分控制在大多数情况下具有有害或微不足道的影响。在低放电电压下，比例控制同时消除了电离呼吸振荡以及共存的低频模式。在较高电压下观察到稳定性的逐渐恶化，这可能归因于控制器的有限输出电压范围。放电的时间平均特性，如平均电流、推力和效率，在测量不确定度内保持不变。
Feedback control of ionization oscillations in Hall accelerators is investigated with a proportional-integral-derivative controller acting on the discharge voltage. The stability of the current is found to systematically improve with proportional control, whereas integral and derivative control have in most cases a detrimental or insignificant impact. At low discharge voltages, proportional control eliminates at the same time ionization breathing oscillations as well as a coexisting low frequency mode. A progressive deterioration of the stability is observed at higher voltage, presumably attributable to the limited output voltage range of the controller. The time-averaged characteristics of the discharge such as average current, thrust and efficiency, remain unchanged within measurement uncertainties.