电推进系统在静止轨道卫星平台上应用的关键技术

Key Techniques for the Application of the Electric Propulsion System in the Geostationary Satellite Platform

在未来静止轨道平台上应用电推进系统是我国航天事业发展的必然趋势。将氙离子电推进系统(XIPS)应用于静止轨道卫星平台,除了要解决电推力器本身的问题之外,还要在系统应用方面做大量工作。以该静止轨道卫星对电推进系统的需求为基础,从三个方面对电推进系统在未来静止轨道平台上应用所涉及到的关键技术进行了分类及梳理:一是电推进系统与电推力器之间的关系,包括电推力器与推进剂贮存和供给子系统、电源子系统、控制子系统联合工作所涉及到的关键技术;二是电推进系统与化学推进系统的协调工作,包括两种推进系统的任务分工及相互影响所涉及到的关键技术;三是电推进系统对整星及大系统的影响,包括电推进系统对电源、热控、羽流污染控制、电磁兼容性(EMC)、遥测遥控、自主管理等所涉及到的关键技术。通过对这三个方面的关键技术进行梳理,明确了电推进系统在整星上应用所需要开展的工作。

The application of electric propulsion system in China＇s geostationary satellite in the future is a necessary trend. For the application of the electric propulsion system, a lot of problems have to be solved for both thruster itself and the system application. Based on the analysis of satellite requirements, this paper summarizes the key techniques for the electric propulsion system application on the geostationary satellite. These problems can be separated into three aspects： the first is the internal interface of the electric propulsion system, including the interface between thruster and propellant storage and supply subsystem, power subsystem, control subsystem etc. The second is the coordinate operation of electric propulsion system and chemical propulsion system, including the separate operation and interaction. The last one is impact of the electrical propulsion system on the whole satellite, including plume, electromagnetic compatibility （EMC） , telemetry, tracking and control （TT＆C） and power etc. This paper classifies and integrates the key techniques and defines the problems to be solved for the application of electric propulsion system in China＇s geostationary satellite.