Intelligent Control of Flexible Hypersonic Flight Dynamics With Input Dead Zone Using Singular Perturbation Decomposition

2021 ◽  
pp. 1-11
Author(s):  
Bin Xu ◽  
Xia Wang ◽  
Fuchun Sun ◽  
Zhongke Shi
Keyword(s):  
Singular Perturbation ◽  
Intelligent Control ◽  
Dead Zone ◽  
Flight Dynamics ◽  
Hypersonic Flight

scholarly journals Human Simulated Intelligent Control with Double-Direction Dead-Zone Compensation for Joint Motion Control of a Large-Sized Boom System

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Rongsheng Liu ◽  
Yingjie Gao ◽  
Yulin Yang ◽  
Yanlong Liu
Keyword(s):  
Motion Control ◽  
Intelligent Control ◽  
Dead Zone ◽  
Control Mode ◽  
Joint Motion ◽  
Compensation Scheme ◽  
Negative Effects ◽  
Proportional Valve ◽  
Control Scheme ◽  
And Control

Joint motion control of a 52-meter-long five-boom system driven by proportional hydraulic system is developed. It has been considered difficult due to strong nonlinearities and parametric uncertainties, the effect of which increases with the size of booms. A human simulated intelligent control scheme is developed to improve control performance by modifying control mode and control parameters. In addition, considering the negative effects caused by frequent and redundant reverse actions of the proportional valve, a double-direction compensation scheme is proposed to deal with the dead-zone nonlinearity of proportional valve. Sinusoidal motions are implemented on a real boom system. The results indicate that HSIC controller can improve control accuracy, and dead-zone nonlinearity is effectively compensated by proposed compensation scheme without introducing frequent reverse actions of proportional valve.

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