| 基于SOGI-FLL-WPF的磁悬浮多跨转子不对中振动检测 |
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| 引用本文： | 关旭东,周瑾,金超武,姚润晖.基于SOGI-FLL-WPF的磁悬浮多跨转子不对中振动检测[J].西南交通大学学报,2022,57(3):665-674. |
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| 作者姓名： | 关旭东 周瑾 金超武 姚润晖 |
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| 作者单位： | 1.常州大学机械与轨道交通学院，江苏 常州 2131642.南京航空航天大学直升机传动技术重点实验室，江苏南京 2100163.南京航空航天大学机电学院，江苏 南京 210016 |
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| 基金项目： | 国家自然科学基金（51675261,52075239,51875275）； |
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| 摘 要： | 为解决磁悬浮多跨转子不对中振动检测问题，首先，建立磁悬浮转子系统动力学模型及联轴器不对中模型；其次，基于多跨转子力学模型模拟转子不对中振动状态，并采用二阶广义积分-锁频环（second order generalized integrator-frequency locked loop，SOGI-FLL）对振动信号进行转速辨识；然后，将转速辨识信息输入至SOGI进行转速同频陷波，进而利用带预滤波器的SOGI-FLL （SOGI-FLL with prefilter，SOGI-FLL-WPF）对陷波后的信号进行磁悬浮多跨转子不对中振动检测；最后，通过磁悬浮多跨转子定速和升速状态下的仿真计算，验证了本文提出多跨转子不对中振动检测方法的可行性. 实验结果表明:由转子不对中引起的转速二倍频振动信号可被快速辨识出幅值和频率，可为磁悬浮多跨设备的应用奠定基础.
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| 关 键 词： | 磁悬浮轴承 多跨转子 不对中振动 SOGI-FLL-WPF 振动检测 |
| 收稿时间： | 2021-10-18 |
Misalignment Vibration Detection of Magnetic Suspension Multi-Span Rotors Based on SOGI-FLL-WPF |
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| GUAN Xudong,ZHOU Jin,JIN Chaowu,YAO Runhui.Misalignment Vibration Detection of Magnetic Suspension Multi-Span Rotors Based on SOGI-FLL-WPF[J].Journal of Southwest Jiaotong University,2022,57(3):665-674. |
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| Authors: | GUAN Xudong ZHOU Jin JIN Chaowu YAO Runhui |
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| Affiliation: | 1.School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China2.National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China3.College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Aiming at misalignment vibration detection of magnetic suspension multi-span rotors, the dynamic model of magnetic suspension rotor system and coupling misalignment model are firstly established. Secondly, the rotor misalignment vibration state is simulated based on the multi-span rotors mechanics model, and the speed of vibration signal is identified by second order generalized integrator-frequency locked loop (SOGI-FLL). Furthermore, the speed identification information is input to SOGI for co-frequency notch filtering, and then misalignment vibration detection of magnetic multi-span rotors is performed on the notch signal by SOGI-FLL with prefilter (SOGI-FLL-WPF). Finally, the feasibility of the proposed detection method is verified by the simulation of magnetic suspension multi-span rotors at constant and ascending speeds. The experimental results show that the amplitude and frequency of the vibration signal at double speed frequency caused by rotor misalignment can be quickly identified, which lays a foundation for the application of magnetic suspension multi-span equipment. |
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