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Model predictive control for autonomous rendezvous and docking with a tumbling target

机译:自主会合和对接目标的模型预测控制

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摘要

In this paper, we investigate the application of model predictive control (MPC) strategy for controlling a chaser spacecraft to dock with a tumbling target in space. The CW-based model is used to predict the proximity trajectory, while a receding prediction horizon is employed to complete the specific docking manipulation in finite time, and a 2-norm cost index about control input is used to minimize the fuel consumption of the chaser during docking. To ensure the implementation of the docking procedure, several engineering constraints such as control input saturation, collision avoidance, velocity constraint, and dock-enabling condition are considered simultaneously. A time-varying linear inequality constraint is used rather than the original quadratic constraint, to achieve the collision-avoidance requirement. Therefore, the constrained optimal rendezvous trajectory in the case of such a MPC framework can be obtained by solving a quadratic program subject to linear constraints. To verify the feasibility of the proposed MPC strategy, four AR&D scenarios are simulated. The simulation results show that MPC strategy can be an effective approach to achieve rendezvous and proximity maneuvering between a chaser spacecraft and a tumbling target while satisfying various constraints, and provide robustness to disturbances. (C) 2017 Elsevier Masson SAS. All rights reserved.
机译:在本文中,我们研究了模型预测控制(MPC)策略在控制追赶航天器与太空中翻滚目标对接中的应用。基于CW的模型用于预测接近轨迹,而后退的预测范围则用于在有限时间内完成特定的对接操作,并且使用有关控制输入的2标准成本指数来最小化追赶者的油耗在对接期间。为了确保对接程序的执行,同时考虑了几个工程约束,例如控制输入饱和,避免碰撞,速度约束和对接启用条件。使用时变线性不等式约束而不是原始的二次约束来达到避免碰撞的要求。因此,在这种MPC框架的情况下,可以通过求解受线性约束的二次程序来获得约束的最佳集合点轨迹。为了验证所提出的MPC策略的可行性,模拟了四个AR&D场景。仿真结果表明,MPC策略可以有效地满足追赶航天器和翻滚目标之间的交会和接近机动性,同时满足各种约束条件,并为干扰提供鲁棒性。 (C)2017 Elsevier Masson SAS。版权所有。

著录项

  • 来源
    《Aerospace science and technology》 |2017年第10期|700-711|共12页
  • 作者单位

    Northwestern Polytech Univ, Natl Key Lab Aerosp Flight Dynam, Xian, Shaanxi, Peoples R China|Northwestern Polytech Univ, Sch Astronaut, Xian, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Natl Key Lab Aerosp Flight Dynam, Xian, Shaanxi, Peoples R China|Northwestern Polytech Univ, Sch Astronaut, Xian, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Natl Key Lab Aerosp Flight Dynam, Xian, Shaanxi, Peoples R China|Shenzhen Univ, Shenzhen, Peoples R China;

    Northwestern Polytech Univ, Natl Key Lab Aerosp Flight Dynam, Xian, Shaanxi, Peoples R China|Northwestern Polytech Univ, Sch Astronaut, Xian, Shaanxi, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Autonomous rendezvous and docking; Tumbling target; Collision avoidance; Model predictive control; On-orbit servicing;

    机译:自主会合和对接;翻滚目标;避免碰撞;模型预测控制;在轨维修;

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