• CN:11-2187/TH
  • ISSN:0577-6686

›› 2004, Vol. 40 ›› Issue (5): 23-29.

• 论文 • 上一篇    下一篇

开关磁阻型动力磁轴承瞬时转矩控制策略的研究

曹家勇;周祖德;陈幼平;艾武;詹琼华   

  1. 华中科技大学机械科学与工程学院;华中科技大学电气与电子工程学院
  • 发布日期:2004-05-15

INSTANTANEOUS TORQUE CONTROL OF AN SWITCHED RELUCTANCE-TYPE POWER MAGNETIC BEARING

Cao Jiayong;Zhou Zude;Chen Youping;Ai Wu;Zhan Qinghua   

  1. School of Mechanical Science and Engineering, Huazhong University of Science and Technology School of Electrical and Electronic Engineering, Huazhong University of Science and Technology
  • Published:2004-05-15

摘要: 在研究开关磁阻型动力磁轴承平均转矩控制策略特点基础上,提出一种瞬时转矩控制新策略。该瞬时转矩控制策略根据转子位置选择产生支承力的相绕组(支承相),同时在考虑支承相对驱动转矩影响的前提下,采用另外两相绕组(补偿相)对驱动转矩进行补偿,使之准确地跟踪期望转矩,实现输出转矩的瞬时控制。瞬时转矩控制策略不仅显著减小了输出转矩的脉动程度,而且还避免了对驱动转矩和支承力之间复杂耦合关系的处理,简化了控制算法。分析了单个开关磁阻型动力磁轴承构成的控制系统的工作原理,并对其进行了计算机仿真,仿真结果验证了瞬时转矩控制策略的可行性。

关键词: 磁悬浮主轴, 开关磁阻型动力磁轴承, 控制策略, 瞬时转矩控制

Abstract: The switched reluctance-type power magnetic bearing (SR-type PMB) is a kind of mechatronical part, which can not only support suspensefully but also drive directly the spindle. After the investigation of the characteristics of average torque (AT) control strategy, a new strategy of the instantaneous torque (IT) control for the SR-type PMB, which reduces the torque ripple significantly and simplify the control algorithms greatly, is proposed. In the IT control strategy, the radial forces and the drive torque are produced by the cooperatively by several phases. A control system of the SR-type PMB, including a support subsystem and a drive subsystem, is analyzed. And the simulations of such a control system are reported for the verification of the feasibility and the effectiveness of the proposed instantaneous torque control strategy.

Key words: Magnetic suspension shaft, Control strategy, Instantaneous torque control, Switched reluctance-type power magnetic bearings

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