摘要
针对磁悬浮飞轮系统的陀螺效应,采用交叉反馈控制进行抑制.分析了引入交叉反馈控制的飞轮系统稳定性,当转速超过某临界转速时,飞轮系统保持稳定,交叉反馈控制可以对陀螺效应进行完全补偿.临界转速与控制器参数以及转子的惯性矩有关,可根据实际需要通过控制器参数进行调整.实验比较了分散PID控制与交叉反馈控制下飞轮系统的性能.实验数据分析的结果表明,分散PID控制下的飞轮系统在12000r/min时由于陀螺效应而失稳,引入交叉反馈控制后,系统在转速达到25000r/min时仍平稳运行.交叉反馈控制对陀螺效应的抑制是有效的.
A control method, cross-feedback control, is studied to restrain gyroscopic effect of a magnetic bearing-supported flywheel system. The stability of the system is analyzed under cross-feedback control. The results show that the gyroscopic effect could be restrained by using this method and the system keeps stable when the rotation speed is over some critical value which is relative to the moments of inertia of the rotor and could be adjusted by the parameters of the controller according to requirements of applications. The performance of this system with cross-feedback control is analyzed by experiments and compared with that under decentralized proportional integral differential (PID) control only. The experiments show that the system under decentralized PID control is unstable at 12000 r/min, while that with cross-feedback control is still work normally at 25000 r/min. Therefore, this method could restrain the gyroscopic effect effectively.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2003年第11期1105-1109,共5页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金资助项目 (50 2 751 1 6)
