Study of Current and Displacement Stiffness Characteristics of AMB System
Study of Current and Displacement Stiffness Characteristics of AMB System
复制标题
DOI：
10.1109/icece.2010.1035
复制
发表时间：
2010-06
期刊：
影响因子：
--
通讯作者：
Wu Guoqing;Zhou Jingling;Wang Xiping
中科院分区：
文献类型：
--
作者：
Wu Guoqing;Zhou Jingling;Wang Xiping
分析了径向磁轴承和推力磁轴承差动驱动方式下的电流刚度和位移刚度。为保证电磁轴承系统的稳定运行，研究了电流和位移刚度对电磁轴承系统的影响。研究表明，在工程允许误差范围内，电流刚度和位移刚度是常数。磁力存在线性范围。简化后的线性模型满足控制器设计的要求。控制精度越高，线性范围越小。研究结果为电磁轴承控制器的设计提供了理论依据，有助于了解电磁轴承系统在工作范围内的性能。
The current and displacement stiffness are analyzed toward radical magnetic bearing and thrust magnetic bearing with differential driving mode. The effects of current and displacement stiffness on AMB system are studied to ensure its stable operation. The study indicated that current and displacement stiffness are constant in the range of allowable engineering error. There is a linear range to the magnetic force. The simplified linear model meets the requirement of controller design. The more precise the control precision is, the smaller the linear range is. The research provides a theoretical base of controller design, which is useful for understanding AMB system performance in operation range.