| 基于角加速度的陀螺框架伺服系统干扰观测器 |
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| 引用本文： | 徐向波,房建成.基于角加速度的陀螺框架伺服系统干扰观测器[J].北京航空航天大学学报,2009,35(6):669-672. |
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| 作者姓名： | 徐向波 房建成 |
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| 作者单位： | 北京航空航天大学仪器科学与光电工程学院,北京,100191;北京航空航天大学仪器科学与光电工程学院,北京,100191 |
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| 摘 要： | 磁悬浮控制力矩陀螺(MSCMG,Magnetically Suspended Control Moment Gyro)是大型航天器姿态控制的关键执行机构,影响MSCMG输出力矩准确度的一个关键因素是其框架伺服系统的控制精度.为提高MSCMG框架伺服系统的抗干扰能力和控制精度,提出了一种基于角加速度的干扰观测器.其设计思想是:卡尔曼滤波器利用角位置估计出角速度并送往状态观测器以获取准确的角加速度,角加速度和电流作为干扰观测器的输入以获得补偿电流,补偿电流加到电流环的输入端以补偿各种干扰.干扰观测器结构简单,抗干扰能力强.实验表明:该方法有效地提高了MSCMG框架伺服系统的角速度精度与稳定度.
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| 关 键 词： | 角加速度 角速度 稳定度 干扰观测器 |
| 收稿时间： | 2008-05-30 |
Disturbance observer based on angular acceleration for gyro gimbal servo system |
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| Xu Xiangbo,Fang Jiancheng.Disturbance observer based on angular acceleration for gyro gimbal servo system[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(6):669-672. |
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| Authors: | Xu Xiangbo Fang Jiancheng |
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| Institution: | School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | Magnetically suspended control moment gyro(MSCMG) is the primary attitude actuator of large spacecraft,and the MSCMG gimbal servo system control precision is one of the main factors which affect gyroscopic torque accuracy.In order to enhance the MSCMG gimbal servo system disturbance suppression ability and control precision,a disturbance observer based on angular acceleration for MSCMG gimbal servo system was proposed.Using angle,Kalman filter estimates the velocity,which was sent to the state observer to a... |
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| Keywords: | acceleration velocity stability disturbance observer |
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