摘要
国外GEO平台已普遍采用霍尔电推进技术来提升性能。美国新一代军用通信卫星AEHF率先采用了5kW级多模式霍尔电推进系统执行发射后的部分轨道提升任务和在轨位置保持任务,获得了超过908kg的质量增益。该霍尔电推进系统可实现大推力和高比冲的多种工作模式,应用灵活,适应性强,还利于提高卫星指向精度。AEHF-1卫星由于远地点发动机未能工作,实施了霍尔电推进执行大部分轨道提升的拯救任务,成功将价值超过20亿美元的卫星送入轨道,并确保其14年的预定寿命,体现了霍尔电推进的综合优势。霍尔电推进在AEHF卫星上应用及其在AEHF-1卫星拯救任务中的应用对我国霍尔电推进发展具有重要的启示作用。
Hall electric propulsion technology has been widely used by foreign GEO platforms for per- formance improving. USA^s new generation military communication satellite, AEHF, has equipped with 5kW class multi-mode Hall electric propulsion system for partial orbit raising after liftoff and orbit keep- ing, which result in a mass gain in excess of 908 kg. The Hall electric propulsion system can realize multi mode such as high thrust or high specific impulse which can be used flexibly, adaptively, and to improve the satellite pointing accuracy. Because of the failure of AEHF-1 apogee engine, Hall electric propulsion system was used for major orbit raising in the rescue mission, saving the satellite of more than $ 2 billion and ensuring its planned 14-year life, which shows the comprehensive advantage of Hall electric propul- sion. The application of Hall electric propulsion on AEHF satellites and in AEHF-1 rescue mission pro- vides important inspiration to the domestic Hall electric propulsion development.
出处
《真空电子技术》
2013年第3期5-11,共7页
Vacuum Electronics
关键词
霍尔电推进
AEHF军用通信卫星
轨道提升
拯救任务
Hall electric propulsion, AEHF military communication satellite, Orbit raising, Rescuemission
