Principle and Control of Radial AC Hybrid Magnetic Bearing
In the paper, the configuration and principle of the radial AC hybrid magnetic bearings are expounded, and the mathematical models of suspension forces are deduced by using the method of equivalent magnetic circuits. Nonlinearities of suspension forces and cross coupling between the two degrees of freedom are studied further by calculating the suspension forces at different displacements and control currents to validate the feasibility of the mathematical models. Then based on the mathematics models, the digital control system is designed. The hardware based on TMS320F2812 is developed, and the software of control system is developed. The experiments are completed and the test results have shown that the AC hybrid magnetic bearing has good dynamic and static performance.
AC magnetic bearing Mathematical model Cross-Coupling analysis Digital control
Zhang Weiyu Zhu Huangqiu Yang Zebin
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, China
国际会议
The Twelfth International Symposium on Magnetic Bearings(第十二届国际磁悬浮轴承学术会议)
武汉
英文
407-413
2010-08-22（万方平台首次上网日期，不代表论文的发表时间）