Improvement of Control Precision for Piezoelectric Actuators With Support Vector Machines

摘要：

Due to the inherent hysteresis nonlinearity of piezoelectric actuators, the tracking control precision is limited in the open-loop system. In this paper, a hybrid approach associated the Preisach concept with support vector machines (SVM) to identify and predict the nonlinear behavior of piezoelectric actuators is brought forward. Preisach concept is used to construct mesh nodes in the Preisach plane and determine the final output displacement of piezoelectric actuators. SVM is trained based on the mesh nodes and provides favorable generalization ability in the Preisach plane. Experimental results show that the proposed method is valid to improve the control accuracy of piezoelectric actuators.

作者: Shuyan Yang Haifeng Wang

作者单位: Department of Mechanical Engineering Qingdao Technological University Qingdao, China 266033 College of Mechanical & Electronic Engineering Qingdao University Qingdao, China 266071

会议类型: 国际会议

会议名称: Fourth International Conference on Impulsive and Hybrid Dynamical Systems(ICIHDS 2007)(第四届国际脉冲和混合动力系统学术会议)

会议地点: 南宁

会议语种:英文

在线出版日期: 2007-07-20（万方平台首次上网日期，不代表论文的发表时间）