基于A3PE3000L的磁力矩器控制系统设计

针对空间环境辐射源带来高能带电粒子会使卫星长开机部件控制器出现单粒子现象，工作异常，应用于某型号低轨卫星的磁力矩器控制系统，采用ACTEL公司的Flash型FPGAA3PE3000L作为控制器，具有对单粒子事件免疫、低功耗、低成本等优点。文中介绍了该控制系统组成，包括A3PE3000L的主要资源、A3PE3000L与中心计算机通过RS422总线的通信电路、驱动电路等，并经过了实验验证。目前，该方案已应用于某航天任务，实践证明，本系统性能良好，并且在轨实验状态稳定，具有很高的可靠性。

Design of control system based on A3PE3000L used in magnetorquer

A3PE3000L is the Flash‐based architecture FPGA produced by ACTEL company ,and is successfully applied in the magnetorquer controller as a actuator of some low earth orbit satellite because of low power ,low cost and immune to single event effects (SEEs) .This paper introduce the composition of control system ,include FPGA main resources ,drive circuit design ,interface circuit for RS 422 protocol etc ,and the experimental results of the control system prove the reliability .This design is currently applied in some space mission .The control system is proven to be of good performance ,have normal test condition and high reliability on‐orbit .