中国电机工程学报2025，Vol.45Issue(11)：4469-4478,10.DOI:10.13334/j.0258-8013.pcsee.241231
基于SVPWM的混合磁轴承三相全桥开关功放的单周期数字控制模型
One-cycle Digital Control Model for Three-phase Full-bridge Switching Amplifier in Hybrid Magnetic Bearings Based on SVPWM
摘要
Abstract
To solve the problem that the existing one-cycle digital method cannot directly control the three-phase winding currents of a hybrid magnetic bearing driven by a three-phase inverter,a novel current-type one-cycle digital method for the three-phase full-bridge switching amplifier to control three-phase currents in a hybrid magnetic bearing is proposed by using space vector pulse width modulation(SVPWM)technique.Firstly,the principle of radial levitation and SVPWM for three-phase inverter-driven six-pole hybrid magnetic bearings is briefly introduced.Secondly,based on the seven-section SVPWM technique,establish a current type single cycle digital control model for a hybrid magnetic bearing three-phase full bridge switching power amplifier.Then,provide a sector discrimination method based on current variables in the X and Y directions as coordinates,which can account for phase resistance voltage drop.Finally,three load coils are used to simulate the three-phase windings of a hybrid magnetic bearing,and the simulation and experimental schemes for current closed-loop control are designed separately.Both simulation and experimental results show that the current pulsation is small and the tracking accuracy is high,which in turn proves the correctness of the proposed one-cycle model and sector judgment.关键词
混合磁轴承/三相全桥开关功放/单周期数字控制模型/空间矢量脉宽调制Key words
hybrid magnetic bearing/three-phase full-bridge switching amplifier/one-cycle digital control model/space vector pulse width modulation(SVPWM)分类
信息技术与安全科学引用本文复制引用
刘泽远,吴幸成,蔡骏,陈小元,杨艳,刘程子..基于SVPWM的混合磁轴承三相全桥开关功放的单周期数字控制模型[J].中国电机工程学报,2025,45(11):4469-4478,10.基金项目
国家自然科学基金项目(52377061,52077105) （52377061,52077105）
特种电机与高压电器教育部重点实验室(沈阳工业大学)开放基金项目(KFKT202102) （沈阳工业大学）
沈阳工业大学国家稀土永磁电机工程技术研究中心联合开放基金项目(2022-KF-24-03).Project Supported by National Natural Science Foundation of China(52377061,52077105) （2022-KF-24-03）
Opening Foundation of Key Laboratory of Special Machine and High Voltage Apparatus(Shenyang University of Technology),Ministry of Education(KFKT202102) （Shenyang University of Technology）
Joint Opening Foundation of National Rare Earth Permanent Magnet Motor Engineering Technology Research Center of Shenyang University of Technology(2022-KF-24-03). （2022-KF-24-03）
