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首页> 外文期刊>Journal of Guidance, Control, and Dynamics >Feedback Control with Nominal Inputs for Agile Satellites Using Control Moment Gyros
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Feedback Control with Nominal Inputs for Agile Satellites Using Control Moment Gyros

机译:使用控制矩陀螺仪的敏捷卫星标称输入反馈控制

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摘要

Satellites orbiting the Earth require large-angle and rapid rotationalmaneuverability. Controlmoment gyros arernexpected to be applied to attitude control actuators of small agile satellites, because control moment gyros canrngenerate high torque effectively. However, the controlmoment gyro has a singularity problemthat affects its energyrnconsumption and rapid actuation. To solve the problem, a feedforward control logic using an energy-optimal pathrnplanned by a Fourier basis algorithm is proposed here. However, this logic alone cannot maintain precise controlrnunder actual errors and disturbances. Therefore, a feedback control system was also designed in order to acquirernrobustness against errors and disturbances. The designed system included in this paper is characterized by using arnsystem’s limit state, which is a newly defined variable, and is predicted by numerical integrals using nominal controlrninputs. Several numerical simulations and experiments were carried out to verify the feasibility of the proposed logicrnin terms of the robustness, energy consumption, and the safe use of the control moment gyro.
机译:绕地球轨道运行的卫星需要大角度和快速的旋转机动性。期望将控制力矩陀螺仪应用于小型敏捷卫星的姿态控制执行器,因为控制力矩陀螺仪可以有效地产生高扭矩。然而,控制力矩陀螺仪有一个奇异性问题,影响其能量消耗和快速启动。为了解决该问题,在此提出了使用通过傅立叶基础算法计划的能量最优路径的前馈控制逻辑。然而,仅此逻辑不能在实际错误和干扰下维持精确的控制。因此,还设计了一种反馈控制系统,以便获得对错误和干扰的鲁棒性。本文中包含的已设计系统的特征是使用arnsystem的极限状态(这是一个新定义的变量),并通过使用名义控制输入的数值积分进行预测。进行了若干数值模拟和实验,以从鲁棒性,能耗和安全使用控制力矩陀螺的角度验证所提出的逻辑的可行性。

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