Helicopter pitch fly-by-wire control law design based on fuzzy control
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摘要: 直升机具有多变量、轴间强耦合和不稳定的非线性系统的特点,在悬停状态下尤为严重,用常规控制方法设计的控制系统难以满足高性能直升机的需要.模糊控制是一种比较近似于人类解决问题方式的控制方法,通过模仿人类思维中的模糊概念,进而控制某些不确定系统,应用模糊控制对直升机在悬停条件下纵向姿态控制/姿态保持(ACAH)响应类型控制律进行设计,通过仿真证明了这种方法的良好效果.Abstract: Because of the nonlinear properties of the helicopters, such as multivariable, strong couple, the conventional control methods can hardly provide the perfect manipulability for advanced helicopter. Fuzzy control is an effect control method, which deals with the control problems through the way similar to human problems solving, so it can control some uncertain systems by imitating the fuzzy concepts of human thoughts. Fuzzy control method was applied to designing the pitch ACAH control law of hovering for a helicopter. The effectiveness of the proposed method was provided by simulation.
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Key words:
- helicopters /
- fuzzy control theory /
- fly-by-wire
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[1] Michio Sugeno, Howard Winston, Isao Hirano, et al. Intelligent control of an unmanned helicopter based on fuzzy logic . In:51st American Helicopter Society Annual Forum ,1995. 791~803 [2] 章卫国,杨向忠.模糊控制理论与应用[M].西安:西北工业大学出版社,1999 Zhang Weiguo, Yang Xiangzhong.The theory and application of fuzzy control[M]. Xi'an:Northwestern Polytechnical University Press,1999(in Chinese) -
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