高速无人机横侧向增稳控制设计
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摘要
高速无人机横侧向转动惯量小,在速度包线范围内横侧向控制参数变化大,高速飞行时会出现荷兰滚模态不稳定的问题。为了改善高速飞行时的荷兰滚模态的稳定性,提出了引入侧滑角反馈与滚转角速度反馈共同构成增稳系统的解决方案,建立了增稳系统的控制模型。运用Simulink软件搭建了仿真模型,仿真结果表明:高速飞行时无人机横侧向控制参数选取合理,引入侧滑角反馈后横侧向稳定性显著提高。该方法能够满足实际工程需求。
As the lateral inertia of high speed UAV is small and the lateral control parameters vary widely in the speed envelope, Dutch roll mode is instability when flying at high speed. In order to improve the stability of the Dutch roll mode at high speed, the stability augmentation system composed of sideslip angle feedback and roll rate feedback is proposed. The model of stability augmentation system is established. The simulation model is built by Simulink software. The simulation results show that the lateral control parameters are reasonable and the lateral stability is significantly improved with the side slide feedback at high speed. This method can meet the needs of the actual project.
As the lateral inertia of high speed UAV is small and the lateral control parameters vary widely in the speed envelope, Dutch roll mode is instability when flying at high speed. In order to improve the stability of the Dutch roll mode at high speed, the stability augmentation system composed of sideslip angle feedback and roll rate feedback is proposed. The model of stability augmentation system is established. The simulation model is built by Simulink software. The simulation results show that the lateral control parameters are reasonable and the lateral stability is significantly improved with the side slide feedback at high speed. This method can meet the needs of the actual project.
引文
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[4] 楼静梅,张科.基于自抗扰理论的无人机横侧向解耦控制研究[J].计算机测量与控制,2014,22(4):1152-1154.
[5] 薛静,杨亚洁,刘宇,等.基于L1自适应控制的无人机横侧向控制[J].西北工业大学学报,2015,33(1):40-44.
[6] 王元超,段镇,高九州,等.基于Simulink/Stateflow的无人机多模态飞行控制率仿真[J].计算机测量与控制,2015,23(6):1944-1946.
[7] 付伟.小型高速无人机横侧向控制率设计[D].南京.南京航空航天大学,2013.
[8] 李颖.Simulink 动态系统建模与仿真基础[M].西安:西安电子科技大学出版社,2004.
[2] 《飞机设计手册》编委会.军用飞机总体设计(飞机设计手册第四册)[M].北京:航空工业出版社,2005.
[3] 方振平,等.航空飞行器飞行动力学[M].北京:北京航空航天大学出版社,2005.
[4] 楼静梅,张科.基于自抗扰理论的无人机横侧向解耦控制研究[J].计算机测量与控制,2014,22(4):1152-1154.
[5] 薛静,杨亚洁,刘宇,等.基于L1自适应控制的无人机横侧向控制[J].西北工业大学学报,2015,33(1):40-44.
[6] 王元超,段镇,高九州,等.基于Simulink/Stateflow的无人机多模态飞行控制率仿真[J].计算机测量与控制,2015,23(6):1944-1946.
[7] 付伟.小型高速无人机横侧向控制率设计[D].南京.南京航空航天大学,2013.
[8] 李颖.Simulink 动态系统建模与仿真基础[M].西安:西安电子科技大学出版社,2004.