引用本文:王晓琳,丁强.基于速度信息观测的无轴承永磁同步电机悬浮解耦控制[J].控制理论与应用,2011,28(12):1803~1807.[点击复制]
WANG Xiao-lin,DING Qiang.Levitation decoupling control for permanent-magnet bearingless synchronous motors based on speed information observation[J].Control Theory and Technology,2011,28(12):1803~1807.[点击复制]
基于速度信息观测的无轴承永磁同步电机悬浮解耦控制
Levitation decoupling control for permanent-magnet bearingless synchronous motors based on speed information observation
摘要点击 2301  全文点击 1551  投稿时间：2010-06-22  修订日期：2011-03-03
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DOI编号  10.7641/j.issn.1000-8152.2011.12.CCTA100728
  2011,28(12):1803-1807
中文关键词  无轴承永磁同步电机  线性扩张状态观测  无速度传感器  解耦控制
英文关键词  permanent-magnet bearingless synchronous motor  linear extended state-observer  speed-sensorless  decoupling control
基金项目  国家自然科学基金资助项目(50977043).
作者单位E-mail
王晓琳* 南京航空航天大学 自动化学院 dingq@niit.edu.cn 
丁强 南京航空航天大学 自动化学院
南京工业职业技术学院 电气与电子工程学院 		 
中文摘要
      无轴承永磁同步电机以转子位置信息为媒介实现解耦控制, 整个算法复杂且依赖速度传感器. 本文研究电机无传感器运行及解耦算法简化的方法. 首先将传统扩张状态观测算法简化为线性形式. 然后将二、三阶线性扩张状态观测器分别加入转矩和悬浮系统电流环和位移环, 并定义电角速度与转矩d-q轴电流乘积以及转矩系统q轴磁链与悬浮d-q轴电流乘积为扰动项, 利用观测器辨识转速信息及悬浮扰动力. 接着对转速信息进行处理、对悬浮扰动力进行补偿从而实现无速度传感器运行并简化悬浮解耦算法. 最后通过仿真验证所提控制策略能够实现电机无速度传感器运行, 保证额定转速下稳定悬浮.
英文摘要
      The conventional decoupling control of permanent-magnet bearingless synchronous motors depends on the rotor-position information. This control algorithm is complex and dependent on speed-sensor. We propose a decoupling control algorithm with no speed-sensor working for the motor. First, the traditional extended state observer(ESO) algorithm is simplified to a linear form, and then, the second-order and third-order linear-ESO algorithms are added respectively to the current-loop in the torque system and the displacement-loop in the suspension system. The product of the electrical angular speed and the d-q axis current in the torque system, and the product of the q-axis flux in the torque system and the d-q axis current in the suspension system are defined as disturbances to the linear-ESO in identifying the speed information and the levitation disturbance force. Thirdly, the speed information is processed, and the levitation disturbance force is simplified, thus realizing the operation without the speed-sensor, and the simplication of the levitation decoupling algorithm. Finally, the simulation results show that the proposed control strategy can achieve the operation with no speed-sensor and guarantee the stable suspension under the rated speed.