摘要
以多质点离散转子为对象，采用对数衰减率作为指标，判别电磁轴承－转子系统的稳定性；分析讨论了控制器各参数对系统各阶模态对数衰减率及固有频率的影响，由此从稳定性出发来指导控制器的参数设计．
The dynamical analysis of an electric magnetic bearing rotor system is presented in this paper. The rotor is discreted into a multi mass model and logarithmic decrement has been applied as a stability index of the system. On such a base, the effect of controller parameters of the electric magnetic bearing on the logarithmic decrement and natural frequency of each system model is analyzed and discussed. The results are used to direct the design of parameters of a controller.In comparison with the single mass rotor model and pole placement method applied in most other published papers ,the analysis presented in this paper is more accurate and practical.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1996年第3期7-14,共8页
Journal of Xi'an Jiaotong University
基金
西安交通大学润滑理论及轴承转子系统国家教委开放研究实验室基金资助项目
关键词
电磁轴承
控制器
临界频率
转子系统
稳定性
electric magnetic bearing controller critical frequency logarithmic decrement stability margin
