一种磁悬浮飞轮增益预调交叉反馈控制方法

田希晖; 房建成; 刘刚

一种磁悬浮飞轮增益预调交叉反馈控制方法

北京航空航天大学仪器科学与光电工程学院, 北京 100083

基金项目: 国防科工委民用航天预研资助项目(科工计[2001]894号)

详细信息

作者简介:
田希晖(1971-),男,山东青州人,博士生,tianxihui@sina.com.

中图分类号: TH 133
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- 被引次数: 0
出版历程
- 收稿日期: 2006-04-30
- 网络出版日期: 2006-11-30

Gain scheduling cross feedback control approach for magnetic suspending flywheel

School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 磁悬浮飞轮转子在高转速下表现出的陀螺效应是影响系统稳定性的主要因素.为了提高磁悬浮飞轮的失稳转速,针对陀螺效应引起的系统章动失稳和进动失稳,提出了一种基于转速的增益预调交叉反馈控制方法,针对不同的转速段,建立在线控制相对应的交叉反馈通道增益和带宽参数表,对进动模态和章动模态分别实现交叉相位补偿.采用该控制方法用经典控制理论中的根轨迹法对系统的章动稳定性进行了仿真并对控制参数进行了优化.仿真和实验结果表明,采用这种基于转速的增益预调交叉反馈的控制算法,能够有效地抑制磁悬浮飞轮转子陀螺效应所导致的章动失稳,所设计的磁悬浮飞轮原理样机能够稳定运行在其额定转速30000r/min.
- 飞轮 /
- 磁轴承 /
- 陀螺效应 /
- 增益预调
Abstract: At high rotational speeds, the gyroscopic effect of flywheel rotor is the major factor that influences rotor stability. The gyroscopic effects will lead to nutation destabilization or procession destabilization. A gain scheduling proportional cross feedback control algorithm based on the rotational speed is accepted to compensate nutation and precession lag in phase by creating the parameter table of cross feedback channel according to different rotational speed interval. The active magnetic bearing-rotor system model based on the gyroscopic technical equation is established. Root locus method of the classical control theory is used to give nutation stability simulation and analysis based on this model. Instruction of setting and optimization of the controlling parameter is presented. Simulation and test prove that this method can improve nutation stability caused by gyroscopic effects effectively. The designed prototype magnetic suspending flywheel can reach its rated design speed (30000r/min) stably.
- flywheels /
- magnetic bearings /
- gyroscopic effects /
- gain scheduling

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参考文献(1)

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