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| 动量轮卸载在改进GEO卫星东西轨道保持中的应用 | |
| 引用本文： | 边宝刚,隋起胜,孙广富.动量轮卸载在改进GEO卫星东西轨道保持中的应用[J].航天控制,2008,26(3). |
| 作者姓名： | 边宝刚 隋起胜 孙广富 |
| 作者单位： | 1. 国防科技大学电子科学与工程学院,长沙,410073;西安卫星测控中心,西安,710043 2. 西安卫星测控中心,西安,710043 3. 国防科技大学电子科学与工程学院,长沙,410073 |
| 摘 要： | 空间外干扰力矩会使在轨GEO三轴卫星动量轮转速发生周期性变化,因此需要进行动量轮卸载。通过对卸载前后卫星轨道根数的比较,发现动量轮卸载可以延长卫星实际的东西轨道保持周期。以动量轮卸载有利卫星轨道保持为研究目的,通过计算和分析,推导出动量轮卸载时转速变化与卫星半长轴变化关系的数学模型,并以实际测量数据为基础,对模型进行了仿真验证,证明了动量轮卸载对改进GEO卫星东西轨道保持的可行性,提出了一种利用动量轮卸载改进GEO卫星东西轨道保持策略的新方法。 |
| 关 键 词： | 动量轮卸载 GEO卫星 太阳光压 轨道保持 |
Application of MW Unloading in Improving East-west Station Keeping of GEO Satellites |
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| Bian Baogang,Sui Qisheng,Sun Guangfu.Application of MW Unloading in Improving East-west Station Keeping of GEO Satellites[J].Aerospace Control,2008,26(3). | |
| Authors: | Bian Baogang Sui Qisheng Sun Guangfu |
| Abstract: | The periodic variation of momentum wheel(MW) rotation rate in GEO three-axis stabilized satellite is affected by the disturbing torques,so the MW unloading control is needed.Comparing the GEO satellite orbital elements before and after the MW unloading,it is found that the period of east-west station-keeping is prolonged by the MW unloading.Furthermore,a mathematic model of the relationship between the MW rotation rate variation and the semi-major axis variation is derived by analysis.The simulation based on the real data is proved that the MW unloading is feasible to improve the east-west station-keeping of GEO satellite.Therefore,a new east-west station-keeping maneuver is presented. |
| Keywords: | Momentum wheel(MW) unloading GEO satellite Solar radiation pressure Station-keeping |
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