应用科学学报 ›› 2014, Vol. 32 ›› Issue (3): 311-318.doi: 10.3969/j.issn.0255-8297.2014.03.013

• 控制与系统 • 上一篇    下一篇

反馈线性化超低空空投抗侧风滑模控制律设计

刘日, 孙秀霞, 李大东, 董文瀚   

  1. 空军工程大学航空航天工程学院,西安710038
  • 收稿日期:2013-04-18 修回日期:2014-03-22 出版日期:2014-05-31 发布日期:2014-03-22
  • 作者简介:刘日,博士生,研究方向:飞行控制、先进控制理论,E-mail:lr_taiyang@126.com;孙秀霞,教授,博导,研究方向:现代鲁棒控制、飞行控制,E-mail:gcxysxx@126.com
  • 基金资助:

    国家自然科学基金(No.60904038);航空科学基金(No.20121396008)资助

Counteracting Crosswind Sliding Mode Control of Ultra-low Altitude Airdrop Based on Feedback Linearization

LIU Ri, SUN Xiu-xia, LI Da-dong, DONG Wen-han   

  1. School of Aeronautics and Astronautics Engineering, Air Force Engineering University, Xi’an 710038, China
  • Received:2013-04-18 Revised:2014-03-22 Online:2014-05-31 Published:2014-03-22

摘要: 超低空空投过程中货台运动与侧风干扰耦合会影响载机的安全性和空投任务的完成,为此提出了基于反馈线性化和滑模变结构相结合的控制律设计方法. 利用微分几何反馈线性化完成系统解耦线性化,在此基础上采用滑模变结构控制设计系统内环姿态角的跟踪控制器,保证了系统鲁棒性,并结合外环PID 轨迹保持控制完成整个飞行控制系统设计. 仿真验证了控制器的鲁棒性,且满足空投战技指标要求.

关键词: 超低空空投, 侧风, 非线性反馈线性化, 滑模变结构控制, 鲁棒性

Abstract:  Translation of the inner cargo coupled with the crosswind threats flight safety and affects the mission of airdrop. To solve the problem, a controller combining feedback linearization with variable structure is proposed. The system is decoupled and linearized using a differential geometry feedback linearization technique. Thus, the inner loop for altitude angle control is designed by using the variable structure theory so that system robustness is ensured. The flight control system is completed by combining with the outer loop PID control for path-hold. Simulation results confirm that a controller with strong robustness can satisfy the airdrop indexes.

Key words: ultra-low altitude airdrop, crosswind, nonlinear feedback linearization, sliding mode variable structure control, robustness

中图分类号: