| 四轴型磁悬浮动量轮变结构控制 |
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| 引用本文： | 吴刚,张育林,刘昆.四轴型磁悬浮动量轮变结构控制[J].上海航天,2006,23(1):12-17. |
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| 作者姓名： | 吴刚 张育林 刘昆 |
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| 作者单位： | 1. 国防科学技术大学,航天与材料工程学院,湖南,长沙,410073
2. 酒泉卫星发射中心,甘肃,兰州,732750 |
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| 摘 要： | 根据空间飞行器姿态控制用四轴主动控制型混合磁悬浮动量轮的动力学方程,采用变结构控制(VSC)法设计了一种多输入多输出系统控制器。二次型最优控制用于确定最终滑模运动方程,趋近律用于决定变结构控制输入,实现了磁悬浮动量轮快速稳定的鲁棒性控制。仿真结果表明,VSC的动静态特性较好,其滑模运动的不变性可有效消除陀螺力矩的影响,并能实现控制能量的优化。
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| 关 键 词： | 磁悬浮动量轮 变结构控制 陀螺力矩 鲁棒性 仿真 |
| 文章编号： | 1006-1630（2005）06-0012-06 |
| 收稿时间： | 2005-05-11 |
| 修稿时间： | 2005-06-08 |
Variable Structure Control of Four Axial Magnetic Bearing Momentum Wheel |
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| WU Gang,ZHANG Yu-lin,LIU Kun.Variable Structure Control of Four Axial Magnetic Bearing Momentum Wheel[J].Aerospace Shanghai,2006,23(1):12-17. |
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| Authors: | WU Gang ZHANG Yu-lin LIU Kun |
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| Institution: | 1. College of Aerospace and Material Engineering, NUDT, Changsha Hunan 410073, China; 2. Jiquan Sateulte Laneh Center, Lanzhou Gangsu 732750, China |
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| Abstract: | According to the dynamic equation of four axial radial hybrid magnetic bearing momentum wheel for attitude control of spacecraft,the variable structure controller of multiple output and multiple input for magnetic bearing momentum wheel was designed in this paper.The least quadratic regulator the switch function was used to determine the final sliding equation,and the exponential motion rule was used to decide the input of the control system,which realized the rapid stableness of magnetic bearing momentum wheel.The simulation results showed that the variable structure control of magnetic bearing had good dynamic response and stability.The unchanging of sliding motion would eliminate the gyroscope moment,and the proper parameters of the exponential motion rule could optimize the input power. |
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| Keywords: | Magnetic bearing momentum wheel Variable structure control Gyroscope moment Robustness Simulation |
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