在轨太阳模拟器双模式控制系统设计  

Design of Double Modes' Control System of Sun's Path Simulator on Orbit

作　　者：宋宝奇[1] 方伟[1] 叶新[1] 杨东军[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《计算机测量与控制》2013年第6期1519-1521,共3页Computer Measurement &Control

基　　金：国家自然科学基金(40675083)

摘　　要：太阳辐射监测仪作为某卫星的有效载荷,在太阳同步轨道运行过程中,通过其二维跟踪系统对太阳辐照度进行跟踪测量,在研制阶段的模拟在轨跟踪实验中,需要二维太阳模拟器为其提供光源来模拟在轨运行时的太阳运行轨迹,验证二维跟踪系统的跟踪性能;系统下位机基于单片机控制步进电机驱动二维机构带动光源在轨运动,通过FPGA扩展接口读取二维编码器对模拟光源角度信息的反馈;上位机基于VC编程,控制在轨太阳角度输出并切换太阳模拟器工作模式;本系统结构简单,智能闭环控制,角度精确反馈,输出太阳光线的俯仰角度和偏航角度与Matlab计算理论值偏差在±0.15°以内,在太阳辐射监测仪的二维跟踪系统地面性能测试中,运行稳定可靠。Solar Irradiance Monitor working on the solar synchronizing orbit as the effective payload of some satellite is designed for measuring solar total＇irradiance by tracking the sun through the two dimension rotate system. A mock light system of solar path on orbit is needed for the terrestrial simulation test of the two dimension tracking system of Solar Irradianee Monitor, MCU works as the core controller used to control the motors and FPGA works auxiliary. And encoders are used to feed back the position of the mock light to achieve the close ring control of the stepping motor. The controller is of high practical values for its stability and orientation accuracy, and the difference be tween output angle and theoretical value is within ±0. 15% It is of great significance for the tracking performance testing of the two dimen sion tracking system of Solar Irradiance Monitor.

关 键 词：太阳辐射监测仪 轨迹仿真 二维运动 单片机 FPGA 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]