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基于WIENER模型的压电陶瓷神经网络动态迟滞模型的研究
引用本文:党选举,谭永红.基于WIENER模型的压电陶瓷神经网络动态迟滞模型的研究[J].系统仿真学报,2005,17(11):2701-2703,2716.
作者姓名:党选举  谭永红
作者单位:1. 上海交通大学自动化系,上海,200030;桂林电子工业学院智能系统与工业控制研究室,桂林,541004
2. 桂林电子工业学院智能系统与工业控制研究室,桂林,541004
基金项目:国家自然科学基金项目(50265001);广西自然科学基金项目(桂科基0339068)
摘    要:从频域的角度分析,一般认为迟滞特性的形成是由于对输入信号进行了相位滞后而造成,从而形成了输入和输出的多值对应关系,但直接从相位滞后角度所建立的迟滞模型主要是对迟滞环中的主环进行逼近。该文给出了多值对应的迟滞特性的新解释,提出迟滞特性是由形成多值对应的相位滞后部分和动态非线性部分串联组成。采用改进的Wiener模型建立压电陶瓷的迟滞回环特性模型,仿真和实验结果表明在描述压电陶瓷的多值对应、动态特性及非线性特性方面,所提出的神经网络动态迟滞模型具有较高的精度。

关 键 词:压电陶瓷  相位滞后  动态迟滞特性  Wiener模型  神经网络
文章编号:1004-731X(2005)11-2701-03
收稿时间:2004-10-08
修稿时间:2004-10-082005-06-29

Study on Neural Networks Dynamic Hysteresis Model for Piezoceramic Based on Wiener Model
DANG Xuan-ju,TAN Yong-hong.Study on Neural Networks Dynamic Hysteresis Model for Piezoceramic Based on Wiener Model[J].Journal of System Simulation,2005,17(11):2701-2703,2716.
Authors:DANG Xuan-ju  TAN Yong-hong
Institution:1 Institute of Automation, Shanghai Jiaotong University, Shanghai 200030, China; 2 Lab. of Intelligent System and Control Engineering, Guilin University of Electronic Technology, Gnilin 541004, China
Abstract:Hysteresis is commonly caused by the delay of phase which leads to multi-valued relationship in frequency domain. But the phase lag based hysteresis model is mainly applied in approximation of the main loop. The hysteresis is interpreted to be consisted of a phase lag and a dynamic nonlinear. The new hysteresis model is a modifying Wiener model in the model structure. Results of simulation and experiment show that the proposed hysteresis model can be used to describe well the behaviors of multi-valued relationshio, dynamic and nonlinear for piezoceramic actuator.
Keywords:piezoceramic  phase lag  dynamic hysteresis behavior  Wiener model  neural networks
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