中国空间科学技术

中国空间科学技术

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可变绳长绳系卫星系统的一种简单张力控制策略

钟睿;徐世杰;   

  1. 北京航空航天大学宇航学院;
  • 发布日期:2009-12-25

Simple Tension Control Strategy for Variable Length Tethered Satellite System

Zhong Rui Xu Shijie(School of Astronautics,Beihang University Beijing 100191)   

  • Online:2009-12-25
  • Supported by:
    国家自然科学基金资助项目(批准号10702003)

被引次数

13

摘要： 为了简化绳系卫星系统(TSS)的控制,对已有的设计方法进行了改进,提出了一种新的控制律设计方法。根据TSS的动力学方程构造线性自治系统,对释放、滞留和回收过程做统一处理,由线性自治系统的稳定理论导出线性反馈控制律,并对控制参数的取值进行了讨论;然后针对回收过程,通过设计平衡点参数得到了一种分段回收控制方案。仿真算例表明,文中采用的设计方法对于圆轨道和近圆轨道TSS的释放、滞留和回收过程都有较好的适应性。

关键词: 绳系卫星系统, 张力控制, 线性自治系统, 鲁棒控制理论, 回收

Abstract: In order to simplify the control of tethered satellite system(TSS),a new design method was proposed by upgrading the existing methods.A linear autonomous system was established according to the dynamic functions of TSS and a linear feedback control law was derivate from this system for deployment,station-keeping and retrieval phases in the same process.Then the parameters of the control law were discussed.For retrieval phase,a piecewise retrieval law was derived by designing the equilibrium point parameter.Numerical simulation results prove that the method works well for the three phases of TSS mission in both circular and near circular orbits.