基于DSP的卫星太阳能电池板姿态控制系统设计

Design of Solar Panel Satellite Attitude Control Based on DSP

卫星太阳能电池板将太阳能转换为电能,是卫星能源供应系统的重要组成部分。为了实现能源利用率的最大化,设计了基于DSP的太阳能电池板姿态控制系统。通过控制太阳能电池板姿态,太阳能电池板可以完成太阳光的最有效采集,提高太阳能电池板的光电转换效率。首先,依据太阳能电池板输出短路电流与太阳光照强度成正比这一原理,测量出太阳光相对于太阳能电池板的入射角;然后,利用DSP处理并生成电机控制信号;最后,驱动步进电机转过相应角度,完成姿态控制,从而使电池板达到最大采光率。测试结果表明,控制系统显著提高了太阳能电池板的采光率,性能稳定,为卫星能源利用率最大化提供了可靠保障。

The satellite solar panels are the important parts of energy supply in satellite system,which can convert solar energy into electrical energy. The attitude control system of solar panel is designed to realize the maximum acquisition rate of solar power based on DSP. The solar panels can accomplish most efficiently to capture sunlight and improve the photoelectric conversion efficiency by controlling the attitude of solar panels. First,according to the principle that the short-circuit current output from solar panels is in proportion to the solar light,the sunlight angle of incidence is measured with respect to solar panels; Then,the DSP is used to process and generate the motor control signal; finally,it drives the stepping motor turning to the corresponding angle to complete the attitude control,so that the satellite solar panels reaches the maximum lighting rate. The test results show that the control system significantly improves the lighting rate of solar panels and the performance is stable,provides a reliable guarantee for the maximize utilization of satellite energy.