| 引用本文: | 常晓飞,杨韬,符文星,闫杰.平流层卫星的建模与控制系统设计[J].哈尔滨工业大学学报,2012,44(9):113.DOI:10.11918/j.issn.0367-6234.2012.09.020 |
| CHANG Xiao-fei,YANG Tao,FU Wen-xing,YAN Jie.The design of trajectory controller based on variable structure control with sliding mode for stratosphic satellite[J].Journal of Harbin Institute of Technology,2012,44(9):113.DOI:10.11918/j.issn.0367-6234.2012.09.020 |
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| 摘要: |
| 为减小控制力在传递过程中的偏差与时滞对轨迹控制精度的影响,对平流层卫星控制系统进行设计．针对系统构成建立了轨迹控制器和气球系统的经向运行模型,基于滑模变结构控制方法,根据气球南北方向的实际指令位置和指令位置的偏差,采用指数趋近律和边界层削抖的方法,设计出轨迹控制器的控制系统．仿真结果表明,采用该方法的轨迹控制器,可以有效克服系绳带来扰动和时滞的影响,完成平流层卫星的东西方向运动控制,控制误差约80 m． |
| 关键词: 平流层卫星 轨迹控制器 滑模变结构控制 |
| DOI：10.11918/j.issn.0367-6234.2012.09.020 |
| 分类号:V476.3 |
| 基金项目:国家高技术研究发展计划资助项目(2009AA7050103)； 西北工业大学基础研究基金资助项目(JC201003). |
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| The design of trajectory controller based on variable structure control with sliding mode for stratosphic satellite |
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CHANG Xiao-fei, YANG Tao, FU Wen-xing, YAN Jie
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College of Astronautics, Northwestern Polytechnical University, 710072 Xi’an, China
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| Abstract: |
| To reduce the influence of deflection and time lag of control force during the dispersion of tether on trajectory control precision, this paper designed stratospheric satellite control system. According to the system composition this paper established the trajectory control system and the longitude motion model of balloon system; Based on sliding mode variable structure control, according to deflection between the actual instruct position and instruct position in north-south direction, the methods of exponent reaching law and the flutter reduction around boundary layers are used to design the control system of trajectory controller. The simulation results have shown that the control system can overcome the disturbance and time lag caused by tether effectively, and complete the stratosphere satellite east and west direction motion control with the error of 80 m. |
| Key words: stratospheric satellite trajectory control system sliding mode variable structure control |
