毛细管放电型脉冲等离子体推力器输出特性分析

doi:10.13675/j.cnki. tjjs. 190027

推进技术 ›› 2020, Vol. 41 ›› Issue (1): 149-156.DOI: 10.13675/j.cnki. tjjs. 190027

毛细管放电型脉冲等离子体推力器输出特性分析

王亚楠¹,葛崇剑¹,程乐¹,丁卫东¹,耿金越²

1.西安交通大学电力设备电气绝缘国家重点实验室，陕西西安 710049;2.北京控制工程研究所，北京;100190

出版日期:2020-01-20 发布日期:2020-01-20
作者简介:王亚楠，博士生，研究领域为电推进、放电等离子体等。E-mail：jasonwangyn_xjtu@163.com
基金资助:
国家自然科学基金（11702021）；北京控制工程研究所先进空间推进技术实验室和北京高效能及绿色宇航推进工程技术研究中心开放基金（LabASP-2017-04）。

Analysis of Output Characteristics of Capillary Discharge Based Pulsed Plasma Thruster

1.State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China;2.Beijing Institute of Control Engineering,Beijing 100190,China

Online:2020-01-20 Published:2020-01-20

摘要/Abstract

摘要： 为了研究毛细管放电型脉冲等离子体推力器输出特性，借助电学诊断手段展开实验研究，获得了推力器典型放电波形，系统研究了不同毛细管内径和施加电压对等离子体等效阻抗、沉积能量效率的影响规律。利用微冲量测量台架，测试了不同参数下毛细管推力器输出元冲量，并通过计算获得了推力器比冲、总体效率的变化规律。实验结果表明，当毛细管内径不断增大时，能量沉积效率不断下降，元冲量下降，比冲降低。主电容电压增大时，放电能量不断增大，能量沉积效率降低，元冲量和单次等效烧蚀质量不断增大，但推力器比冲和总体效率均先增加并趋于稳定。当毛细管腔体长度为16mm，内径3mm，主电容2.5μF，充电电压为2kV时，输出元冲量350.79±7.50μNs，比冲531s，总体效率可达18.3%。

关键词: 毛细管放电;脉冲等离子体推力器;电推进系统;元冲量;效率

Abstract: The output characteristics of the capillary discharge based pulsed plasma thruster is investigated experimentally. The typical discharge waveform was achieved with the electrical measurement tools. The effects of the cavity diameter and applied voltage on the equivalent plasma resistance and energy deposition efficiency were studied. With the thrust balance for micro impulse measurement, the output impulse bit under different parameters was measured and the specific impulse and overall efficiency were calculated. The experimental results show that with the increasing of the cavity diameter, the energy deposition efficiency, impulse bit and specific impulse decrease. With the increasing of the applied voltage on the main capacitor, the discharge energy, impulse bit and equivalent ablation mass per shot increase while the energy deposition efficiency decreases. Meanwhile, the specific impulse and overall efficiency increase firstly and finally tend to be stable. Finally, the performance parameters of impulse bit 350.79±7.50μNs, specific impulse 531s and efficiency of 18.3% were achieved under the condition of cavity length of 16mm, diameter of 3mm, main capacitance of 2.5μF and applied voltage of 2kV.

Key words: Capillary discharge;Pulsed plasma thruster;Electric propulsion;Impulse bit;Efficiency

王亚楠,葛崇剑,程乐,丁卫东,耿金越. 毛细管放电型脉冲等离子体推力器输出特性分析 [J]. 推进技术, 2020, 41(1): 149-156.

WANG Ya-nan¹,GE Chong-jian¹,CHENG Le¹,DING Wei-dong¹,GENG Jin-yue². Analysis of Output Characteristics of Capillary Discharge Based Pulsed Plasma Thruster[J]. Journal of Propulsion Technology, 2020, 41(1): 149-156.

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毛细管放电型脉冲等离子体推力器输出特性分析

Analysis of Output Characteristics of Capillary Discharge Based Pulsed Plasma Thruster

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