Adaptive Open-Loop Control of Magnetic Bearings to Offset Slew Rate Limitation under a Non-Synchronous External Disturbance

摘要：

Magnetic bearings have a limited force slew rate capacity inherent in their electrical nature. This physical limitation is not transparent to the feedback controller, which under certain loads may continue to request unachievable slew rates resulting in eventual instability. Using larger power electronics is one approach to the problem, however it is shown in this paper that slew may be prevented more cost effectively by using the appropriate control methods. The root-cause of failure under slew rate limitation is investigated followed by a proposed solution for non-synchronous external disturbances. An adaptive open loop algorithm is presented including frequency tracking capability. The algorithm is implemented experimentally and performance is demonstrated under different test conditions.

作者: Nermine SORIAL Qiao SUN

作者单位: University of Calgary, Canada

会议类型: 国际会议

会议名称: 2nd IEEE Conference on Industrial Electronics and Applications(ICIEA 2007)(第二届IEEE工业电子与应用国际会议)

会议地点: 哈尔滨

会议语种:英文

在线出版日期: 2007-05-23（万方平台首次上网日期，不代表论文的发表时间）