| Observer-Based Nonlinear Control of A Torque Motor with Perturbation Estimation |
| |
| 作者姓名： | J Chen E Prempain Q H Wu |
| |
| 作者单位： | Department of |
| |
| 摘 要： | This paper presents an observer-based nonlinear control method that was developed and implemented to provide accurate tracking control of a limited angle torque motor following a 50Hz reference waveform. The method is based on a robust nonlinear observer, which is used to estimate system states and perturbations and then employ input-output feedback linearization to compensate for the system nonlinearities and uncertainties. The estimation of system states and perturbations allows input-output linearization of the nonlinear system without an accurate mathematical model of nominal plant. The simulation results show that the observer-based nonlinear control method is superior in comparison with the conventional model-based state feedback linearizing controller.
|
| 关 键 词： | 转矩电动机 非线性控制 扰动估计 线性反馈控制器 |
| 收稿时间： | 2004-08-26 |
| 修稿时间： | 2005-07-09 |
Observer-based nonlinear control of a torque motor with perturbation estimation |
| |
| J Chen E Prempain Q H Wu.Observer-Based Nonlinear Control of A Torque Motor with Perturbation Estimation[J].International Journal of Automation and computing,2006,3(1):84-90. |
| |
| Authors: | J Chen E Prempain Q H Wu |
| |
| Affiliation: | (1) Department of Electrical Engineering and Electronics, The University of Liverpool, Liverpool, L69 3GJ, UK |
| |
| Abstract: | This paper presents an observer-based nonlinear control method that was developed and implemented to provide accurate tracking control of a limited angle torque motor following a 50Hz reference waveform. The method is based on a robust nonlinear observer, which is used to estimate system states and perturbations and then employ input-output feedback linearization to compensate for the system nonlinearities and uncertainties. The estimation of system states and perturbations allows input-output linearization of the nonlinear system without an accurate mathematical model of nominal plant. The simulation results show that the observer-based nonlinear control method is superior in comparison with the conventional model-based state feedback linearizing controller. |
| |
| Keywords: | Torque motor nonlinear observer fictitious state perturbation estimation |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《国际自动化与计算杂志》浏览原始摘要信息 |
|
点击此处可从《国际自动化与计算杂志》下载全文 |
