第
17
卷第
4
期
2013
年
4
月
电机与控制学报
ELECTRIC
MACHINES
AND
CONTROL
Vo
l. 17
No.4
Apr. 2013
电励磁双凸极发电机的电枢反应对外特性的影晌分析
陈冉,
陈志辉,
段晴晴,
毛志鑫,
龚春英
(南京航空航天大学江苏省新能源、发电与电能变换重点实验室,江苏南京
210016)
摘
要:针对电励磁双凸极发电机
(WFDSG)
电枢反应较为复杂,带载后的电枢反应既有增磁作用
又有去磁作用,导致磁链和电枢电流的波形严重畸变,不利于电机工作特性分析的情况,提出从磁
能的角度分析电机工作特性的方法。根据双凸极电机的机电能量转换过程,在三相不控全桥整流
发电方式
(DSG2)
下,针对
1
台
12/8
极电励磁双凸极发电机,分析在不同负载情况下磁链和电枢电
流的变化特点和规律,从磁能的角度分析并揭示电机电枢反应作用对电机外特性的影响;分析双凸
极发电机的功率流,根据仿真和实验数据进行磁能面积核算。核算结果表明,仿真和实验结果的误
差在
11%
之内,验证了磁能分析方法的正确性。
关键词:双凸极电机;磁能分析;全桥整流发电方式;外特性;也枢反应
中图分类号
:TP
242
,
TP
273
文献标志码
:A
文章编号:
1007-449X(2013)04-0086-06
Analysis on the i
nf1
uence
of
the
armature
reaction upon
the doubly salient magnetic generator
CHEN
Ran
,
CHEN
Zhi-hui
,
DUAN
Qing-qing
,
MAO
Zhi-xin
,
GONG
Chun-ying
(Jiangsu
Key
Laboratorγof
New
Energy
Generation
and
Power
Conversion
,
Nanjing
University
of
Aeronautics
and
Astronautics
,
Nanjing
210016
, China)
Abstract:
The
annature
reaction of wound-field doubly salient machine (
WFDSG)
is complex , and the
effect reaction
can
both increase
and
decrease the magnetic field with load, causing the distortion of the
flux leakage and
arτnature
curren
t. Thus , the operating characteristics of the generator are difficult to ana-
lyze. This
paper
analyzed the relationship of the motor magnetic energy, proposed the analysis
idea
of the
external characteristics with the relationship
四
rves
of flux linkage
and
annature
current. With this analy-
sis method
, the full bridge rectifier generating mode
of
a
12/8
pole WFDSG was discussed with the help
of the finite element simulation. This research included the characteristics
and
discipline
of
the flux link-
age
and
annature
current changes
under
different loads ,
and
the reason why the
annature
reaction influ-
ences external characteristics. At last
, the power flow was analyzed. Based on the simulation
and
experi-
ments
, the correctness of the analysis method was confinned through the magnetic energy area checking.
The
check
result shows that the error between simulation and experiment results is less than
11
% , verif-
ying the correctness of the analysis.
Key
words:
doubly salient electro-magnetic generator; magnetic energy analysis; full bridge rectifier gen-
erating; external characteristics; armature reaction
收稿日期:
2012
-06 -04
基金项目:江苏省科技支祥计划项目(
BE20
11179
)
f
乍者简介:陈
冉
(1983
一)
,男,博士研究生,研究方向为新能源发电技术、电机设计与控制技术;
陈志辉
(1972
一),男,博士,副教授,硕士生导师,研究方向为新能源发电技术、电机设计与控制技术;
段晴晴
(1988
一)
,女,硕士研究生,研究方向为电机设计与控制技术;
毛志鑫(1
988
一)
,男,硕士研究生,研究方向为电机设计与控制技术;
龚春英(1
965-)
,女,博士,教授,博士生导师,研究方向为新能源发电技术与功率电子交换技术。
通讯作者:陈冉