Research on Variation of Momentum Wheel Rotation Speed for Three-axis-stabilized GEO Satellite
Three-axis-stabilized GEO satellites apply momentum wheel (MW) to maintain attitude stability, MW control is one of the most important topics researched in satellite management. Besides, a good MW control strategy can reduce the fuel consumption and improve the precision of satellite attitude control. To find a reasonable method to control MW actively, the fundamental theory of bias MW was elaborated, the periodical daily and secular variation of MW rotation speed was analyzed. Through the theoretical analysis of the actual telemetry data of the satellite and modeling check, the law was derived that MW rotation speed changes due to the spatial location, antenna configuration and solar radiation pressure mainly. Based on this law, a wheel speed control strategy was derived. First is to predict the trend of wheel speed; second is to design a reasonable unloading speed of the MW for avoiding unnecessary fuel consumption. This improvement strategy has taken good effect in practical long-term management of threeaxis stabilized GEO satellite.
3-axis-stabilized bias momentum wheel rotation speed solar radiation pressure
Jiang Bo Zhang Peng Fu Yongqiang Zhao Jinbo Shang Jiubo
Beijing Aerospace Control Center, Beijing 100094, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
572-575
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）