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航天器精确节能模糊脉冲调宽控制器的设计

周尹强 徐炼新 姜玉宪

周尹强, 徐炼新, 姜玉宪等 . 航天器精确节能模糊脉冲调宽控制器的设计[J]. 北京航空航天大学学报, 2008, 34(05): 555-559.
引用本文: 周尹强, 徐炼新, 姜玉宪等 . 航天器精确节能模糊脉冲调宽控制器的设计[J]. 北京航空航天大学学报, 2008, 34(05): 555-559.
Zhou Yinqiang, Xu Lianxin, Jiang Yuxianet al. Design of fuzzy pulse width modulation controller with accuracy and energy retrenchment applied to spacecraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(05): 555-559. (in Chinese)
Citation: Zhou Yinqiang, Xu Lianxin, Jiang Yuxianet al. Design of fuzzy pulse width modulation controller with accuracy and energy retrenchment applied to spacecraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(05): 555-559. (in Chinese)

航天器精确节能模糊脉冲调宽控制器的设计

详细信息
    作者简介:

    周尹强(1979-),男,四川双流人,博士生,ZhouYinQiang@asee.buaa.edu.cn.

  • 中图分类号: V 448.2

Design of fuzzy pulse width modulation controller with accuracy and energy retrenchment applied to spacecraft

  • 摘要: 为实现航天器精确、节能的姿态或轨道控制,提出一种采用脉冲宽度调制PWM(Pulse Width Modulation)与模糊比例微分PD(Proportional Differential)控制相结合的模糊PD-PWM控制器.其中PWM能将开关型控制转化为相应的精确线性控制,而模糊PD控制在能量消耗限制不同情况下可实现两种快速、节能的控制过程.在分析大气层外拦截器EKV(Extra-atmospheric Kill Vehicle)处于目标捕获和末制导阶段对姿控系统的不同性能要求的基础上,以EKV姿控系统为例介绍了模糊PD-PWM控制器的设计和优化过程.说明了模糊PD控制器隶属度函数的设计、待优化参数的选择以及模糊控制规则的设计,重点叙述了遗传算法GA(Genetic Algorithms)中适应度函数的设计方法,并对隶属度函数进行了优化.仿真结果证明优化后的控制器能满足EKV不同阶段姿态控制要求,具有精确、节能的特点.

     

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出版历程
  • 收稿日期:  2007-04-25
  • 网络出版日期:  2008-05-31

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