|本期目录/Table of Contents|

[1]李红伟,范友鹏,张云鹏,等. 轴流式人工心脏泵混合磁悬浮系统的耦合特性[J].电机与控制学报,2014,18(05):105-111.
 LI Hong-wei,FAN You-peng,ZHANG Yun-peng,et al. Coupling in hybrid magnetic levitation system of axial-flow blood pump[J].,2014,18(05):105-111.
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 轴流式人工心脏泵混合磁悬浮系统的耦合特性(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
18
期数:
2014年05
页码:
105-111
栏目:
出版日期:
2014-05-15

文章信息/Info

Title:
 Coupling in hybrid magnetic levitation system of axial-flow blood pump
作者:
 李红伟 范友鹏 张云鹏 刘淑琴 关勇
 山东大学电气工程学院,山东济南250061
Author(s):
 LI Hong-wei FAN You-peng ZHANG Yun-peng LIU Shu-qin GUAN Yong
 School of Electrical Engineering,Shandong University,Jinan 250061,China
关键词:
 人工心脏泵 电磁轴承 永磁轴承 位移检测 耦合
Keywords:
 blood pump active magnetic bearings permanent magnetic bearings displacement measurementcoupling
分类号:
-
DOI:
-
文献标志码:
A
摘要:
 植入式人工心脏泵要求体积小、质量轻、功耗低,为了满足这些要求,需要研究磁悬浮人工
心脏泵的轴承特性。为此,对径向永磁轴承自身的耦合特性进行了理论分析与仿真,据此提出了心
脏泵转子的磁悬浮支承方案,该方案采用两个径向永磁轴承和一个轴向电磁轴承来实现转子的五
自由度稳定悬浮。根据径向永磁轴承的磁场分布特性,提出了采用两个关于转子轴线对称布置的
霍尔传感器,从转子径向方向检测转子轴向位移的方法,理论分析揭示了转子径向位移和轴向位移
在检测结果中的耦合关系,并给出了解耦方法,得出了轴向位移。基于研究成果设计了轴流式磁悬
浮人工心脏泵原型机,并成功实现了转子的五自由度稳定悬浮。
Abstract:
 The implanted artificial blood pump requires small volume,light weight,low power dissipation
and so on. To meet these requirements,the force coupling and stiffness coupling of the radial permanent
magnetic bearing are studied by theory analysis and simulation. Basing the force coupling characteristics,
a scheme of hybrid magnetic levitation system for the axial-flow maglev blood pump was presented. This
scheme employed two radial permanent magnetic bearings and only one axial active magnetic bearing to
levitate the blood pump rotor in five degrees of freedom. Then,the rotor axial displacement detection
method was studied. This method used two Hall sensors,which were arranged symmetrically about the
pump rotor axis and in the rotor radial direction,to detect the magnet field variation caused by the movement
of rotor ring of the radial magnetic bearing. But the rotor radial displacements and axial displacement
were all included in the outputs of the two Hall sensors. Therefore it analyzed the coupling relationship
between the radial displacement and the axial displacement in the outputs of sensors. Then the decoupling
method was studied and presented. According to the theory study results,a prototype of the axial-
flow maglev blood pump was designed and manufactured. The rotor of the prototype is stably and successfully
levitated in five degrees of freedom.

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备注/Memo

备注/Memo:
更新日期/Last Update: 2014-11-26