Model-free adaptive control for three-degree-of-freedom hybrid magnetic bearings

作     者：Ye YUAN Yu-kun SUN Qian-wen XIANG Yong-hong HUANG Zhi-ying ZHUz Ye YUAN;Yu-kun SUN;Qian-wen XIANG;Yong-hong HUANG;Zhi-ying ZHU

作者机构：School of Electrical and Information Engineering Jiangsu University Zhenjiang 212013 China College of Electrical Engineering Nanjing Institute of Technology Nanjing 211167 China 

基　　金：Project supported by the National Natural Science Foundation of China (Nos. 51707082 and 51607080)  the Natural Science Foundation of Jiangsu Province  China (Nos. BK20170546 and BK20150510)  the China Postdoctoral Science Foundation (No. 2017M620192)  and the Priority Academic Program Development of Jiangsu Higher Education Institutions 

出 版 物：《Frontiers of Information Technology & Electronic Engineering》 (信息与电子工程前沿（英文版）)

年 卷 期：2017年第18卷第12期

页      码：2035-2045页

摘      要：Mathematical models are disappointing due to uneven distribution of the air gap magnetic field and significant un- modeled dynamics in magnetic bearing systems. The effectiveness of control deteriorates based on an inaccurate mathematical model, creating slow response speed and high jitter. To solve these problems, a model-free adaptive control （MFAC） scheme is proposed for a three-degree-of-freedom hybrid magnetic bearing （3-DoF HMB） control system. The scheme for 3-DoF HMB depends only on the control current and the objective balanced position, and it does not involve any model information. The design process of a parameter estimation algorithm is model-free, based directly on pseudo-partial-derivative （PPD） derived online from the input and output data information. The rotor start-of-suspension position of the HMB is regulated by auxiliary bearings with different inner diameters, and two kinds of operation situations （linear and nonlinear areas） are present to analyze the validity of MFAC in detail. Both simulations and experiments demonstrate that the proposed MFAC scheme handles the 3-DoF HMB control system with start-of-suspension response speed, smaller steady state error, and higher stability.

主 题 词：Model-free adaptive control Hybrid magnetic bearings Nonlinear areas Faster response Higher stability 

学科分类：12[管理学] 1201[管理学-管理科学与工程类] 08[工学] 

核心收录：

D　O　I：10.1631/FITEE.1700324

馆 藏 号：203282776...