Modelling and compensation of rate-dependent hysteresis in piezoelectric actuators based on a modified Madelung model

被引：1
|
作者：
Li, Rui [1 ]
Cao, Kairui [2 ]
Li, Zekun [2 ]
机构：
[1] Zhejiang Univ, Coll Control Sci & Engn, Hangzhou, Peoples R China
[2] Harbin Inst Technol, Sch Astronaut, Harbin, Peoples R China
来源：
ELECTRONICS LETTERS | 2024年 / 60卷 / 18期
基金：
中国国家自然科学基金;
关键词：
feedforward; hysteresis; piezoelectric actuators;
D O I：
10.1049/ell2.70027
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Based on the principle of weight superposition, a modified Madelung model is proposed. By combining the signal delay response characteristics (SDRC), a dynamic model and its inverse model are established to describe and compensate for the rate-dependent hysteresis phenomenon of the piezoelectric actuators (PEAs). The effectiveness of the proposed method is verified by experiments, and the results show that the hysteresis nonlinearity of the PEA is basically eliminated, with the normalized root-mean-square error of 0.64% under the excitation of multi-frequency superposition signal. Based on the principle of weight superposition, a modified Madelung model is proposed. By combining the signal delay response characteristics (SDRC), a dynamic model and its inverse model are established to describe and compensate for the rate-dependent hysteresis phenomenon of the piezoelectric actuators (PEAs). The effectiveness of the proposed method is verified by experiments. image
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页数：3
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