CN200997553Y - 具有双电励调压功能的永磁中频无刷三相同步发电机 - Google Patents

具有双电励调压功能的永磁中频无刷三相同步发电机 Download PDF

Info

Publication number
CN200997553Y
CN200997553Y CN 200620099553 CN200620099553U CN200997553Y CN 200997553 Y CN200997553 Y CN 200997553Y CN 200620099553 CN200620099553 CN 200620099553 CN 200620099553 U CN200620099553 U CN 200620099553U CN 200997553 Y CN200997553 Y CN 200997553Y
Authority
CN
China
Prior art keywords
excitation
winding
stator
electric
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200620099553
Other languages
English (en)
Inventor
林政安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tellhow Sci Tech Co Ltd
Original Assignee
Tellhow Sci Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tellhow Sci Tech Co Ltd filed Critical Tellhow Sci Tech Co Ltd
Priority to CN 200620099553 priority Critical patent/CN200997553Y/zh
Application granted granted Critical
Publication of CN200997553Y publication Critical patent/CN200997553Y/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Synchronous Machinery (AREA)

Abstract

一种具有双电励调压功能的永磁中频无刷三相同步发电机,它包括转子铁芯和定子铁芯,其特征在于转子铁芯的槽中增加二种电励磁,第一种是在转子槽中绕有自发电线圈,经二极管闭合成自整流励磁,该种电励磁是与电机负载电流成比例,第二种是在定子中设置有环形励磁绕组,它与电压调节器连接,由电压调节器控制输入直流电励磁。本实用新型的积极效果是永磁电机中增加了二种电励磁技术结构,可以空载发电和稳定负载电压,使永磁中频电机调整率达到小于3%,保持永磁电机轴向长度较短。

Description

具有双电励调压功能的永磁中频无刷三相同步发电机
技术领域
本实用新型涉及一种永磁中频无刷三相同步发电机,尤其是一种具有双电励调压功能的永磁中频无刷三相同步发电机。
背景技术
目前,中频无刷三相同步发电机,一般由主发电机与交流励磁机同轴组成,这使电机结构轴向长度长。为了缩短轴向长度,可以省掉交流励磁机部分而做成永磁中频无刷三相同步发电机,但这种永磁电机调压困难,若不复合电励磁调压,其电压调整率很难做到小于3%的水平。已有的复合励磁方案是永磁主电机在轴向另外附加一个电励磁机,这样还是加长了轴向长度。
发明内容
本实用新型的目的就是提供一种具有双电励调压功能的永磁中频无刷三相同步发电机,它既可保持永磁电机轴向长度较短,又能精密调压。
本实用新型是这样来实现的,它包括转子铁芯和定子铁芯,其特征在于转子中设有永磁体,转子铁芯的槽中增加二种电励磁,第一种是在转子槽中绕有自发电线圈,经二极管闭合成自整流励磁,该种电励磁是与电机负载电流成比例,第二种是由定子励磁绕组形成的电励磁,它与电压调节器连接,由电压调节器控制输入直流电励磁,定子铁芯分成左右二段,其中间放置定子励磁绕组,在左右二段定子铁芯槽中布置同一种三相主绕组和三相辅助绕组,这两种绕组串接成带中性线的星形绕组,在定子中还布置有一套独立的单相辅助绕组,该绕组通过与电压调节器相连对定子直流励磁绕组提供直流电励磁。
本实用新型的积极效果是永磁电机中增加了二种电励磁技术结构,可以空载自行发电和稳定负载电压,使永磁中频电机调整率达到小于3%,保持电机轴向长度较短。
附图说明
图1为本实用新型的结构示意图;
图2为本实用新型的电原理图;
具体实施方式
如图1所示,本实用新型包括定子铁芯(1)和转子铁芯(2),转子铁芯从左到右分为四段,依次放置转子冲片A(3)、转子冲片B(4)、转子冲片C(5)、转子冲片A(3),转子铁芯两端面用转子冲片A(3)冲模冲制1mm的铜板,与穿过转子冲片阻尼孔的阻尼铜杆(6)焊接牢靠,整个转子的槽中布置节距1-2的16个线圈,每个线圈与二极管相连。定子铁芯分为左右两段,由定子轭圈连接,中间放置定子励磁绕组(7),定子铁芯中放置三相对称的定子绕组(8),每相绕组由主绕组和辅助绕组两部分串联而成。这样,这种具有双电流励磁功能的永磁中频无刷三相同步发电机相似于单枢结构电机,结构简单,电机轴向长度比带交流励磁机的无刷发电机要短很多,而电压调节又大大优于单一的永磁发电机。
如图2所示,定子中u1、v1、w1、n为三相四线制输出电枢绕组标记,u1、v1、w1是由三相对称主绕组A1X1、B1Y1、C121与辅助绕组a1x1、b1y1、c1z1分别串联而成。D1D2为单相辅助绕组,Z为单相桥式整流器,E1E2为定子励磁绕组,AVR为电压调节器,调节AVR即可调节电压。转子中,YN1、YS1……YN8、YS8为16个极的永磁铁,ZN1、ZS1……ZN8、ZS8为16个线圈与二极管自整流成16个电励磁磁极,EN1、ES1……EN8、ES8是由定子中E1E2中直流电形成的16个电励磁形成的磁极。
电机转速达额定值时,u1、v1、w1、n产生永磁电压到接近额定值,D1D2也产生电压,调节AVR可使u1、v1、w1、n整定到额定值,接入负载后,转子中ZN1、ZS1……ZN8、ZS8,16个线圈感应发电经二极管整流成电自励形成16个电磁极,自动对输出电压调节。另外,调节AVR,E1E2形成电励磁使EN1、ES1……EN8、ES816个电磁极励磁变化,同时自动对输出电压进行精密调节。
当仅有永磁励磁时,电压调整率仅为7-10%;
当仅加入转子自发电励磁时,电压调整率已可达到5%;
当用再调节AVR后,电压调整率可达到小于3%以内。

Claims (1)

1、一种具有双电励调压功能的永磁中频无刷三相同步发电机,它包括转子铁芯和定子铁芯,其特征在于转子中设有永磁体,转子铁芯的槽中增加二种电励磁,第一种是在转子槽中绕有自发电线圈,经二极管闭合成自整流励磁,该种电励磁是与电机负载电流成比例,第二种是由定子励磁绕组形成的电励磁,它与电压调节器连接,由电压调节器控制输入直流电励磁,定子铁芯分成左右二段,其中间放置定子励磁绕组,在左右二段定子铁芯槽中布置同一种三相主绕组和三相辅助绕组,这两种绕组串接成带中性线的星形绕组,在定子中还布置有一套独立的单相辅助绕组,该绕组通过与电压调节器相连对定子直流励磁绕组提供直流电励磁。
CN 200620099553 2006-10-20 2006-10-20 具有双电励调压功能的永磁中频无刷三相同步发电机 Expired - Fee Related CN200997553Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620099553 CN200997553Y (zh) 2006-10-20 2006-10-20 具有双电励调压功能的永磁中频无刷三相同步发电机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620099553 CN200997553Y (zh) 2006-10-20 2006-10-20 具有双电励调压功能的永磁中频无刷三相同步发电机

Publications (1)

Publication Number Publication Date
CN200997553Y true CN200997553Y (zh) 2007-12-26

Family

ID=38995988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620099553 Expired - Fee Related CN200997553Y (zh) 2006-10-20 2006-10-20 具有双电励调压功能的永磁中频无刷三相同步发电机

Country Status (1)

Country Link
CN (1) CN200997553Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103546007A (zh) * 2013-11-06 2014-01-29 浙江日月昇科技有限公司 一种适应低风速风力机的无刷电励磁低速发电机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103546007A (zh) * 2013-11-06 2014-01-29 浙江日月昇科技有限公司 一种适应低风速风力机的无刷电励磁低速发电机
CN103546007B (zh) * 2013-11-06 2017-04-12 浙江日月昇科技有限公司 一种适应低风速风力机的无刷电励磁低速发电机

Similar Documents

Publication Publication Date Title
CN103208893B (zh) 感应励磁式混合励磁无刷同步电机
Gieras PM synchronous generators with hybrid excitation systems and voltage control Capabilities: A review
Van Der Geest et al. Influence of PWM switching frequency on the losses in PM machines
KR20100002118A (ko) 레귤레이티드 하이브리드 영구 자석 발전기
CN102005879B (zh) 电励磁部分双定子的无刷混合励磁同步发电机
CN1967984A (zh) 具有双电励调压功能的永磁中频无刷三相同步发电机
Bitsi et al. An induction machine with wound independently-controlled stator coils
Zhihui et al. Static characteristics of a novel hybrid excitation doubly salient machine
RU151437U1 (ru) Магнитоэлектрическая машина
CN108306473B (zh) 一种异步起动永磁同步电机绕组的设置方法
More et al. Outer rotor flux reversal machine for rooftop wind generator
Zhu et al. Structure and operating performance of a double electrical excitation synchronous generator with embedded brushless synchronous exciter utilizing DC-field excitation
Kasten et al. Combined stator windings in electric machines with same coils
CN201860232U (zh) 无电励磁转子的并列结构混合励磁同步发电机
CN200997553Y (zh) 具有双电励调压功能的永磁中频无刷三相同步发电机
Mizuno et al. Basic principles and characteristics of hybrid excitation synchronous machine
Khan et al. Impact of direct-drive WEC Systems on the design of a small PM wind generator
Luo et al. A synchronous/permanent magnet hybrid AC machine
Jack et al. Switched reluctance and permanent magnet motors suitable for vehicle drives-a comparison
US10770999B2 (en) Brushless, self-excited synchronous field-winding machine
Popenda et al. The synchronous generator based on a hybrid excitation with the extended range of voltage adjustment
Rezazadeh et al. Design of a six-phase squirrel cage induction motor with pseudo-concentrated windings
CN201985720U (zh) 电励磁部分双定子的无刷混合励磁同步发电机
RU2660945C2 (ru) Магнитоэлектрическая машина
Zhu et al. Performance analysis on a surface-mounted permanent magnet synchronous generator with hybrid excitation based on equivalent magnetic circuit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20071226

Termination date: 20151020

EXPY Termination of patent right or utility model