磁悬浮轴承系统辨识与鲁棒控制
System Identification and Robust Control of Magnetic Suspension Bearing
王艺宇 1周瑾 1徐园平 1周扬 1张一博1
作者信息
- 1. 南京航空航天大学机电学院,江苏南京 210016
- 折叠
摘要
为解决传统鲁棒控制器设计中存在的磁悬浮轴承被控模型建模复杂且难以准确建模的问题,运用正交多项式拟合方法,对模态实验测得转子的刚体模态及弯曲模态频响数据进行系统辨识,建立磁悬浮轴承转子系统被控模型;基于系统辨识所建立的磁悬浮轴承被控模型进行H∞鲁棒控制器设计.实验结果证明:基于系统辨识模型的鲁棒控制器能够实现转子的稳定悬浮及对转子刚体模态的控制.
Abstract
Regarding the complexity and dificulty in accurate modeling of magnetic suspension bearing rotor in the design of traditional robust controllers,the orthogonal polynomial fitting method is applied to measure the rigid body mode and systematically identify frequency response data of bending mode of the rotor through the modal experiment,and the controlled model of the magnetic suspension bearing rotor system is established.An H∞ robust controller is designed based on the controlled model of the maglev bearing established by system identification.The experimental results prove that the robust controller based on the system identification model can realize the stable suspension of the rotor and control the rigid body mode of the rotor.
关键词
磁悬浮轴承/鲁棒控制/系统辨识Key words
magnetic suspension bearing/robust control/system identification引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据