现代防御技术 ›› 2022, Vol. 50 ›› Issue (4): 1-9.doi: 10.3969/j.issn.1009-086x.2022.04.001

• 栏目名称:专栏 •    下一篇

乘波体飞行器非脆弱预设性能控制

卜祥伟1, 姜宝续2   

  1. 1.空军工程大学,防空反导学院,陕西 西安 710051
    2.空军工程大学,研究生院,陕西 西安 710051
  • 收稿日期:2022-06-26 修回日期:2022-07-10 出版日期:2022-08-28 发布日期:2022-09-02
  • 作者简介:卜祥伟(1987-),男,河南夏邑人。副教授,博士,研究方向为飞行控制仿真。
  • 基金资助:
    青年人才托举工程项目(18-JCJQ-QT-007)

Non-Fragile Prescribed Performance Control of Waverider Vehicle

Xiang-wei BU1, Bao-xu JIANG2   

  1. Air Force Engineering University,a. Air and Missile Defense College; b. College of Graduate,Shaanxi Xi'an 710051,China
  • Received:2022-06-26 Revised:2022-07-10 Online:2022-08-28 Published:2022-09-02

摘要:

针对现有预设性能控制(prescribed performance control, PPC)方法在线学习量大、脆弱性缺陷突出的问题,为乘波体飞行器(waverider vehicle, WV)提出了一种无需在线学习参数的非脆弱PPC新方法。通过设计一种具备自调整功能的新型性能函数,为WV的速度子系统与高度子系统分别设计了无需在线学习参数的低复杂度控制律,并避免了反演控制的“微分项膨胀”问题。基于Lyapunov理论证明了闭环系统的稳定性以及预设性能的可达性。相对于现有PPC,所提方法的约束包络能够根据由外部扰动引起的误差波动情况,自主调整其形状,从而避免传统PPC可能存在的控制奇异问题,并弥补了现有PPC方法的脆弱性缺陷。最后,通过数值对比仿真验证了所提方法的效果与优势。

关键词: 乘波体飞行器, 预设性能控制, 脆弱性, 控制奇异, 新型性能函数

Abstract:

A new non-fragile prescribed performance control (PPC) protocol without any online learning parameter is proposed for the waverider vehicle (WV) to address the problems of existing PPC methods with a large amount of online learning and obvious fragility defects. By designing a new type of performance functions with re-adjusting function, the low-complexity-based control laws are developed for the velocity subsystem and the altitude subsystem of WV, and the problem of “explosion of terms” inherent to back-stepping is avoided. The stability of closed-loop system and the guarantee of prescribed performance are proved based on Lyapunov synthesis. Compared with the existing PPC, the improvement of the proposed method is that the constructed prescribed envelope is capable of actively adjusting its shape according to the error fluctuation caused by sudden disturbances, which avoids the possible control singular problem and makes up for the fragility defect of the existing PPC. The effectiveness and advantage of the addressed method are verified via compared numerical simulation.

Key words: waverider vehicle(WV), prescribed performance control(PPC), fragility, control singularity, new performance function

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