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首页> 外文期刊>Journal of guidance, control, and dynamics >Linear Time-Varying Passivity-Based Attitude Control Employing Magnetic and Mechanical Actuation
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Linear Time-Varying Passivity-Based Attitude Control Employing Magnetic and Mechanical Actuation

机译：利用磁和机械驱动的基于线性时变被动性的姿态控制

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摘要

Spacecraft attitude control using both magnetic and mechanical actuation is considered. Attitude control is composed of quaternion-based proportional control and passivity-based rate (angular velocity) control. A passivity-based scheme is adopted in order to guarantee robust closed-loop stability. Motivated by the nearly periodic nature of the Earth's magnetic field, a linear time-varying input strictly passive system is used within the rate control. Conditions that ensure a linear time-varying system is input strictly passive are given and are used in conjunction with the linear quadratic regulator formulation to design and synthesize the rate control. The attitude control formulation ensures that as time goes to infinity the spacecraft attitude and angular velocity go to zero. Simulation results are included that highlight the robust nature of the closed loop subject to both orbit and spacecraft model uncertainty.
机译：考虑使用电磁和机械致动的航天器姿态控制。姿态控制由基于四元数的比例控制和基于被动性的速率（角速度）控制组成。为了保证鲁棒的闭环稳定性，采用了基于无源性的方案。由于地球磁场具有近乎周期性的特性，因此在速率控制中使用了线性时变输入严格无源系统。给出了确保线性时变系统严格输入为无源的条件，并将这些条件与线性二次调节器公式结合使用以设计和综合速率控制。姿态控制公式可确保随着时间的推移，飞船的姿态和角速度将变为零。包括的仿真结果突显了受轨道和航天器模型不确定性影响的闭环的鲁棒性。

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