航空科学技术2024，Vol.35Issue(5)：110-117,8.DOI:10.19452/j.issn1007-5453.2024.05.010
基于Bouc-Wen前馈及模糊PID反馈的三层MFC-PBP并联变形翼大位移控制
Three-layers MFC-PBP Parallel Morphing Wing Large Deflection Control Based on Bouc-Wen Feedforward and Fuzzy PID Feedback
摘要
Abstract
The three-layer macro-fiber composite posted buckled pre-compressed bimorph(MFC-PBP)parallel morphing wing has strong hysteresis nonlinearity,which seriously affects the deformation control accuracy.To realize the precise deformation control,this paper proposes a large-displacement tracking control strategy of three-layer MFC-PBP parallel morphing wing with Bouc-Wen inverse model as feedforward compensation and fuzzy PID as feedback controller.Firstly,genetic algorithm is used to identify the parameters of Bouc-Wen model,then the feedforward model is established and the open-loop control test is carried out for the morphing wing.Secondly,the fuzzy PID feedback controller is added to obtain the closed-loop control which can change the PID parameters adaptively.The test results of deformation tracking control show that the relative error(RE)of Bouc-Wen feedforward control is about 13.5%,the RE of feedforward combined with fuzzy PID is less than 4%,which greatly improves the precision of deformation control.关键词
变形翼/压电宏纤维复合材料双晶片/变形控制/迟滞特性/Bouc-Wen模型/模糊PIDKey words
morphing wing/MFC-PBP/deformation control/hysteresis characteristics/Bouc-Wen model/fuzzy PID分类
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李兴秋,葛沪建,胡凯明..基于Bouc-Wen前馈及模糊PID反馈的三层MFC-PBP并联变形翼大位移控制[J].航空科学技术,2024,35(5):110-117,8.
