Integration simulation method concerning speed control of ultrasonic motor

13th International Conference on Motion and Vibration Control; 12th International Conference on Recent Advances in Structural Dynamics

Miyauchi, R.^1 ; Yue, B.^2 ; Matsunaga, N.^1 ; Ishizuka, S.^1

Cybernet Systems Co., Ltd., 3 Kanda-neribeicho, Tokyo, Chiyoda-ku

101-0022, Japan^1

Maplesoft, 615 Kumpf Drive, Waterloo

ON

N2V 1K8, Canada^2

关键词: Computing time;    Finite element method model (FEM);    Integration simulation;    Nominal models;    Non-linear model;    Nonlinear model predictive control;    Reduced order models;    Ultrasonic motors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/744/1/012022/pdf
DOI  :  10.1088/1742-6596/744/1/012022

来源: IOP

【 摘 要 】

In this paper, the configuration of control system of the ultrasonic motor (USM) from finite element method (FEM) model by applying the nonlinear model order reduction (MOR) is proposed. First, the USM and the FEM model is introduced. Second, FEM model order reduction method is described. Third, the result of comparing the computing time and accuracy of the FEM model and reduced order model is shown. Finaly, nominal model for control is derived by system identification from reduced order model. Nonlinear model predictive control (NMPC) is applied to the nominal model, and speed is controlled. The controller effect is comfirmed by applying the proposed reduced order model.