近日,中国航天科技集团公司六院801所完成了80毫牛霍尔推力器长寿命性能试验,工作时间率先突破8000小时,关键性能指标达到任务指标要求,已具备在轨可靠稳定运行15年以上的能力。这为多个在研型号任务及后续全电推进任务提供了最直接的技术支撑。霍尔推力器具有高比冲、小推力特性,在执行空间推进任务时通常需要长时间连续工作。因此,推力器的可靠性要求极高。霍尔推力器工作机理的研究和寿命预估方法,既是国内外研究的重点,也是难点,至今仍无 Recently, China Aerospace Science and Technology Corporation 801 of the six homes completed 80 milliliters Hall thruster long life performance test, work time first exceeded 8000 hours, the key performance indicators meet the task requirements, has been in orbit reliable and stable operation of more than 15 years Ability. This provides the most direct technical support for a number of research models and follow-up all-electric mission. Hall thruster with high specific impulse, small thrust characteristics, in the implementation of space propulsion tasks usually require a long time continuous work. Therefore, the reliability of thrusters is extremely demanding. Hall thruster working mechanism and life expectancy estimation methods, both domestic and international research focus, but also difficult, so far