卫星姿态大角度机动的轨迹规划和模型预测与反演控制 |
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作者姓名: | 谭天乐 尹俊雄 郑翰清 |
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作者单位: | 上海航天控制技术研究所·上海·201109;
上海市空间智能控制技术重点实验室·上海·201109,上海航天控制技术研究所·上海·201109;
上海市空间智能控制技术重点实验室·上海·201109,上海航天控制技术研究所·上海·201109;
上海市空间智能控制技术重点实验室·上海·201109 |
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摘 要: | 空间科学观测、态势感知、对地遥感、操控服务等应用对卫星提出了高精度、高稳定度、平稳柔顺大角度姿态机动的需求。采用欧拉角形式,对时变、非线性卫星姿态动力学系统进行了分析与建模,将每一个测控周期视为一个姿态机动过程。基于动力学系统受控运动的规律,在每一个姿态跟踪机动过程中,预测姿态偏差,通过卫星姿态演化的反演得到控制指令。以三角函数为基础,设计了一种卫星姿态大角度机动的运动轨迹规划方法。本文所述的轨迹规划及控制方法具有轨迹跟踪精度高、稳定性好,跟踪和机动过程平稳柔顺的特点。数学仿真验证了该方法的可行性和有效性。
关键词:轨迹规划; 模型预测与反演控制; 卫星姿态; 大角度机动
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关 键 词: | 轨迹规划 模型预测与反演控制 卫星姿态 大角度机动 |
Model predictive and inversive control for large-angle maneuvering of satellite attitude with trajectory planning |
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Authors: | TAN Tianle YIN Junxiong and ZHENG Hanqing |
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Institution: | Shanghai Aerospace Control Technology Insititute, Shanghai 201109, China;
Shanghai Key Laboratory of Space Intelligent Control Technology, Shanghai 201109, China,Shanghai Aerospace Control Technology Insititute, Shanghai 201109, China;
Shanghai Key Laboratory of Space Intelligent Control Technology, Shanghai 201109, China and Shanghai Aerospace Control Technology Insititute, Shanghai 201109, China;
Shanghai Key Laboratory of Space Intelligent Control Technology, Shanghai 201109, China |
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Abstract: | The applications of space science observation, situational awareness, earth remote sensing and spatial manipulation have put forward the requirement of high precision, high stability, steady and compliant attitude maneuver for satellites. In this paper, Euler angle is used to analyze and model the time-varying and nonlinear satellite attitude dynamics system. Each sampling control period is regarded as an attitude maneuver process. Based on the motion principle of dynamics system under control, attitude deviation is predicted during each attitude tracking maneuver. Control instructions are obtained by the inversion of satellite attitude evolution. Based on trigonometric functions, a motion trajectory planning method for large angle maneuver of satellite attitude is designed. The proposed trajectory planning and control method is characterized by high tracking accuracy, good stability, smooth tracking and maneuvering process. The feasibility and effectiveness of the method are verified by a mathematical simulation. |
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Keywords: | trajectory planning model predictive and inversive control satellite attitude large-angle maneuvering |
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