| 基于LQR的小卫星磁姿态控制设计 |
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| 引用本文： | 郭延宁,李传江,马广富.基于LQR的小卫星磁姿态控制设计[J].空间控制技术与应用,2008,34(5):61-64. |
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| 作者姓名： | 郭延宁 李传江 马广富 |
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| 作者单位： | 哈尔滨工业大学控制科学与工程系,哈尔滨,150001 |
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| 摘 要： | 研究仅采用磁力矩器作为执行机构的近地小卫星姿态控制问题。通过对刚体卫星的非线性动力学和运动学方程在平衡点处进行线性化处理,得到一个线性周期时变系统,应用线性二次最优调节器理论设计出最优磁矩控制律。最后针对某小卫星进行了仿真验证,结果表明所设计的最优控制律可以很好地完成三轴姿态稳定任务。
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| 关 键 词： | 小卫星 姿态控制 LQR 磁控制
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An LQR-Based Magnetic Attitude Control Design for Small Satellite |
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| GUO Yanning,LI Chuanjiang,MA Guangfu.An LQR-Based Magnetic Attitude Control Design for Small Satellite[J].Aerospace Contrd and Application,2008,34(5):61-64. |
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| Authors: | GUO Yanning LI Chuanjiang MA Guangfu |
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| Institution: | Dept.Control Science and Engineering;HarbinInstitute of Technology;Harbin 150001;China |
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| Abstract: | The attitude control problem of low earth orbit(LEO)satellites actuated by magnetorquers only is investigated.By linearizing the nonlinear dynamic and kinematic equations of rigid satellites,a linear periodically time-varing system is obtained.The linear quadratic optimal regulator theory is applied to design an optimal control law for magnetorquers.Simulation results show that the designed optimal magnetic control law can stabilize three-axis attitude of satellites effectively. |
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| Keywords: | small satellite attitude control linear quadratic regulator(LQR) magnetic control |
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