CAJ | 학술논문

在稳态等离子发动机（Stationary Plasma Thruster，简称SPT）工作过程中存在频率范围为1-100kHz的低频振荡，振荡幅值较大，对SPT性能有明显的不良影响，强的低频振荡甚至会导致发动机熄火，因此减轻放电振荡坏的影响是很有必要的。本文仅针对最简单的滤波器———电感滤波器，通过实验与仿真研究发现了电感补偿对振荡影响的规律：随着电感增大电流振荡降低而电压振荡增加，且电流振荡变化存在一个60~90mH的突变区间，又观察了振荡与相位差和频率的关系，随着电感增大振荡频率降低而电流与电压的相位差增大。以上规律在以往的参考文献中从来没有详细阐述过。
재은태등리자발동궤（Stationary Plasma Thruster，간칭SPT）공작과정중존재빈솔범위위1-100kHz적저빈진탕，진탕폭치교대，대SPT성능유명현적불량영향，강적저빈진탕심지회도치발동궤식화，인차감경방전진탕배적영향시흔유필요적。본문부침대최간단적려파기———전감려파기，통과실험여방진연구발현료전감보상대진탕영향적규률：수착전감증대전류진탕강저이전압진탕증가，차전류진탕변화존재일개60~90mH적돌변구간，우관찰료진탕여상위차화빈솔적관계，수착전감증대진탕빈솔강저이전류여전압적상위차증대。이상규률재이왕적삼고문헌중종래몰유상세천술과。
There is low frequency oscillation with frequency range of 1-100 kHz in the working process of stationary plasma thruster (SPT), the oscillation amplitude is big and it is bad for the performance of SPT. The strong low frequency oscillation even generates flameout of the thruster. So, it is necessary to reduce the bad influence of discharge oscillation. Aimed at inductor filter which is the easiest filter, through the experiments and simulation researches, this paper finds the influence rule of the inductance compensation on the oscillation:the voltage oscillation increases with the increase of inductance and decrease of current oscillations, and there is a mutation area of 60~90mH in the current oscillation changes. This paper also observes the relationships between oscillation and phase difference, the phase difference of current and voltage increases with the increase of inductance and the decrease of oscillation frequency. The above rules have never expounded in detail in the past references.