第13卷第4期
电
机
与
控
制
学
报
V01.13
No.4
2009年7月
ELECTRI C
MACHINES
AND
CONTROL
July 2009
等距笼型转子无刷双馈电机的有限元分析
邓先明,
方荣惠,
王抗,
张晓
(中国矿业大学信息与电气工程学院,江苏徐州221008)
摘要:针对笼型无刷双馈电机的效率较低的问题进行研究,电机效率与转子磁场极数转换效率
和转子漏阻抗参数相关,对转子结构进行优化设计是提高电机性能的根本途径。在分析现有笼型
转子的特性基础上,提出等距笼型的新转子结构。新转子具有公共端环和独立叠式转子导体回路,
每个转子导体回路的节距相等。利用ANSYS软件对不同笼型转子结构的磁场进行有限元分析。计
算出转子磁动势谐渡含量和转子漏阻抗参数。结果表明,新转子结构无刷双馈电机的转子电阻和
漏电抗小,与定子功率绕组和控制绕组极数相对应的转子谐波磁场含量高,其他高次谐波磁场含
量低。
关键词:有限元分析;无刷双馈电机;等距笼型转子;转子谐波磁场;转子漏阻抗
中图分类号:TM
351
文献标志码:A
文章编号:1007—449X(2009)04—0507—04
Finite
element
analysis
of brushless doubly—fed
machine
with
equidistant cage rotor
DENG Xian—ruing,FANG
Rong—hui,WANG
Kang,ZHANG Xiao
(School
of Information and Electrical Engineering,China University of Mining and Technology。Xuzhou
221008,China)
Abstract:The problem of inefficiency of brushless douldy fed
machine(BDFM)with
cage rotor is
re-
searched.The efficiency depends
on
efficiency
of
rotor
magnetic field pole—number conversion and leak・
age
impedance of rotor.Optimal
design
of BDFM
structure
is the original approach
to
improve perform—
ance.Based
on
analysis of characteristic of BDFM with cage
rotor,a
new rotor
structure--equidistant
cage
rotor
is presented.The novel
rotor
has communal end link and independent cascade
rotor
conductor
loop.The
pitch of the loops is equal.It is done that finite element analysis of different
rotor structures
by
ANSYS.Rotor magnetomotive force harmonic
content
and leakage
impedance
parameter are calculated.
The result shows that the rotor resistance and
leakage
impedance of BDFM with
new rotor structure
are
small,and
rotor
harmonic magnetic field contents,corresponding with poles of
stator power
windings and
control windings,are high;the other high-order harmonic magnetic field
contents
are
low.
Key words:finite element analysis;brushless doubly fed machines;equidistant
cage
rotor;rotor harmon—
ic magnetic field;rotor leakage impedance
收稿日期:2008—09—12
基金项目:江苏徐州科技发展基金(XG07017)
作者简介:邓先明(1970一),男,博士,教授,研究方向为新型电机设计与电力传动;
方荣惠(1962一).女。硕士,副教授,研究方向为新型电机设计与控制:
王抗(1986~),男,硕士研究生,研究方向为电力电子与电力传动:
张晓(1977~),男,硕士,副教授,研究方向为电力电子与电力传动。
万方数据