摘要
基于强磁场线圈的一种新型100 kW级水冷附加场磁等离子体动力推进系统MAT-100S(100 kW applied-field magnetoplasmadynamic thruster system)由强磁线圈、空心阴极、扩张型阳极、水冷系统、电源处理单元。推进剂供给系统,热控子系统等组成。目前,整个系统还处于研究之中,各个模块在进行研制和试验。已进行了在强磁环境下等离子体动力推力器的试验研究,对推力器的性能进行了初步测试。在磁场强度0.4 T下,MAT-100S达到1.35 N(34 mN/kW)推力、比冲4200 s、效率70%。试验结果表明,强磁环境下,MAT-100S推力上有明显提升,羽流特性也有显著改善。说明在强磁场下可有效提高推力器的稳定性和性能。通过和小功率电推进和化学推进在实际任务中进行对比,推进剂消耗只有化学推进的1/10,传统电推进的1/2。在完成任务时间方面,消耗的时间只有传统电推进的1/3。采用强磁场磁等离子体动力推进系统能够更好地完成轨道转移和深空探测等任务,是一种非常有发展潜力的推进系统。
A new 100 kW water-cooled applied field magnetoplasmadynamic propulsion system,MAT-100s(100kW Applied Field Magnetoplasmadynamic Thruster System),is composed of a strong magnetic coil,a hollow cathode,an expansible anode,a water cooling system,a power processing unit,a propellant supply system,and a thermal control subsystem,etc.At present,the whole system is still in research,and each module is being developed and experimented.The experimental study of the magnetoplasmadynamic thruster in the strong magnetic environment has been carried out,and the performance of the thruster has been preliminary measured.Under the condition of magnetic field intensity of 0.4 T,the MAT-100S achieves 1.35 N(34 mN/kW)thrust,a specific impulse of 4200 s and an efficiency of 70%.The experimental results show that under the strong magnetic environment,the thrust and plume characteristics of the MAT-100S are significantly improved,and the performance of the thruster can be improved effectively.It shows that the stability and performance of the thruster can be effectively improved under a strong magnetic field.Compared with low-power electric and chemical propulsion in practical missions,the propellant consumption is only one tenth of chemical propulsion and half of conventional electric propulsion.In terms of mission time,it takes about only one-third of the conventional electric propulsion.The magnetoplasmadynamic propulsion system with strong magnetic field can better complete the orbit transfer and deep space exploration and other tasks.It is a kind of propulsion system with great development potential.
作者
丛云天
李永
汤海滨
周成
王宝军
赵博强
王戈
CONG Yuntian;LI Yong;TANG Haibin;ZHOU Cheng;WANG Baojun;ZHAO Boqiang;WANG Ge(Beijing Institute of Control Engineering,Beijing 100094,China;Beihang Uniuersity,Beijing 100091,China)
出处
《固体火箭技术》
CAS
CSCD
北大核心
2021年第3期304-310,共7页
Journal of Solid Rocket Technology
