LHT-100霍尔电推进系统集成测试研究

Integrated Test of LHT-100 Hall Electric Propulsion System

为了验证LHT-100霍尔电推进系统工作匹配性和工作性能,对霍尔电推进系统进行了集成测试研究,霍尔电推进系统包括霍尔推力器、电源处理单元、滤波单元、贮供单元和控制单元,对真空状态下的系统集成点火测试数据与设计指标的符合性进行了分析,研究表明:LHT-100霍尔电推进系统工作兼容性良好,系统集成拉偏后及系统宽功率范围工作正常稳定,各项性能指标满足要求,系统压力控制精度、阳极热节流器及阴极热节流器温度控制精度分别为±1.7%、±1.6%及±1.5%,系统推力83m N,比冲1600s,功率1536W,总效率48.2%,束流发散半角36.2°。

In order to verify the operation characteristics of LHT-100 Hall Electric propulsion,study on integrated test of Hall electric propulsion was carried out. Hall electric propulsion system includes Hall thruster,power processing unit,filter unit,propellant storage and feeding unit,digital and interface control unit. The results of the integrated test program of Hall electric propulsion system under vacuum,including relevant test data and design features,will be discussed. The study shows that there are of good work compatibility for LHT-100 Hall electric propulsion system. The system works stably after down-deflection and over a wide power range. All kinds of performance index of the system met the design requirements. The system pressure control precision,anode and cathode throttle temperature control accuracy were ±1.7%,±1.6% and ±1.5%,respectively. The system thrust is 83 m N,specific impulse is 1600 s,power is 1536 W,total efficiency is 48.2%,beam divergence half angle is 36.2°.