航空学报 > 2017, Vol. 38 Issue (10): 320897-320897   doi: 10.7527/S1000-6893.2017.320897

考虑输入饱和的制导控制一体化设计

王松艳1, 孙向宇1, 杨胜江2, 晁涛1   

  1. 1. 哈尔滨工业大学 控制与仿真中心, 哈尔滨 150080;
    2. 北京空天技术研究所, 北京 100074
  • 收稿日期:2016-10-28 修回日期:2017-01-12 出版日期:2017-10-15 发布日期:2017-01-11
  • 通讯作者: 晁涛 E-mail:chaotao2000@163.com
  • 基金资助:

    国家自然科学基金(61403096);中国博士后科学基金(2014M551242);中央高校基本科研业务费专项资金(HIT.NSRIF.2014036,HIT.NSRIF.2015036);黑龙江省博士后资助经费(LBH-Z12112)

Integrated guidance and control design considering input saturation

WANG Songyan1, SUN Xiangyu1, YANG Shengjiang2, CHAO Tao1   

  1. 1. Control and Simulation Center, Harbin Institute of Technology, Harbin 150080, China;
    2. Beijing Aerospace Technology Institute, Beijing 100074, China
  • Received:2016-10-28 Revised:2017-01-12 Online:2017-10-15 Published:2017-01-11
  • Supported by:

    National Natural Science Foundation of China (61403096);China Postdoctoral Science Foundation (2014M551242);the Fundamental Research Funds for the Central Universities (HIT.NSRIF.2014036,HIT.NSRIF.2015036);Heilongjiang Postdoctoral Fund (LBH-Z12112)

摘要:

高超声速飞行器俯冲时具有快时变特性,执行机构限于物理约束极易导致控制输入达到饱和,针对该问题提出考虑输入饱和约束的制导与控制一体化设计方法。首先,建立纵向制导与控制一体化设计模型,采用干扰观测器对系统不确定性进行估计补偿,然后结合加幂积分方法与嵌套饱和方法设计了新的制导控制一体化非线性控制律。通过严格的理论分析证明了带有饱和约束的控制器可令系统状态全局有限时间稳定,由于控制律中的虚拟控制量均考虑了饱和约束,做到了全局协调抗饱和,从而可更充分地利用飞行器控制能力去实现精准控制。数值仿真实例验证了提出方法的有效性及鲁棒性。

关键词: 高超声速飞行器, 连续有限时间, 输入饱和, 制导控制一体化, 级联系统

Abstract:

Hypersonic vehicle is fast varying in dive phase,so its actuator is easy to be saturated because of the physical constraint.Integrated guidance and control method considering input constraint is proposed.The longitudinal design model for integrated guidance and control is built.An extended state observer is taken to estimate the uncertainties and compensate them.A new integrated guidance and control method is built for the cascaded system based on the method of adding a power integrator and the method of nested anti-windup.Rigorous theoretic analysis proves that the control strategy can result in expected equilibrium of all system states in finite time.Because all the virtual control variables consider the saturation restraint,much more control capacity of the vehicle can be saved to realize accurate manipulation.A numerical simulation case is adopted to verify the effectiveness and robustness of the proposed method.

Key words: hypersonic vehicle, continuous finite-time, input saturation, integrated guidance and control, cascaded system

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