CN202997846U - 用于分瓣转子磁通切换双凸极直流发电机中点接电容电路 - Google Patents

用于分瓣转子磁通切换双凸极直流发电机中点接电容电路 Download PDF

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CN202997846U
CN202997846U CN2013200103761U CN201320010376U CN202997846U CN 202997846 U CN202997846 U CN 202997846U CN 2013200103761 U CN2013200103761 U CN 2013200103761U CN 201320010376 U CN201320010376 U CN 201320010376U CN 202997846 U CN202997846 U CN 202997846U
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point
capacitor
salient pole
magnetic flux
rotor magnetic
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张文昌
张军刚
刘海鹏
于功山
张瑞英
谈学超
王怀杰
陈爱伟
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Jinan Jimeile Power Supply Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

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Abstract

本实用新型涉及一种用于分瓣转子磁通切换双凸极直流发电机中点接电容电路，其特征在于：分瓣转子磁通切换双凸极直流发电机的A、B、C三相电枢绕组做星形连接构成绕组中点0，***电容支路由两个电容Cl、C2串联，电容Cl、C2的连接点与电机绕组中点0连接，A、B、C三相电枢绕组的未接中点0通过D1、D2、D3、D4、D5、D6构成的全桥不控整流电路接滤波电容C3向负载Z0供电；本实用新型用于发电机时，在同样的励磁功率下，发电机的外特性硬，功率因数高，发电功率最大值增加，从而显著提高了双凸极发电机的功率密度；由于***电容支路与整流并联，兼有补偿功能和滤波作用，可有效减小滤波电容容量。

Description

用于分瓣转子磁通切换双凸极直流发电机中点接电容电路
技术领域
本实用新型涉及的分瓣转子磁通切换双凸极直流发电机的电容补偿电路结构，属于特种电机发电领域。
背景技术
分瓣转子磁通切换双凸极直流发电机属于变磁阻电机，其定子，转子均为凸极结构，由硅钢片叠制而成，结构简单，转子上没有绕组，电机可靠性高。分瓣转子磁通切换双凸极直流发电机相绕组做星型连接后通过外电路整流输出直流电。由于分瓣转子磁通切换双凸极直流发电机都具有电枢电感大的特点，在不同性质负载条件下，采用整流电路会使得发电机电枢的相电流和相电压产生相移，降低了发电机的功率因数和功率密度。本发明利用电容对电感性电路功率因数的补偿作用，提出适用于分瓣转子磁通切换双凸极直流发电机全桥整流的电容补偿电路结构，改善电机的功率因数，提高发电机的功率密度。
发明内容
本实用新型中点接电容分瓣转子磁通切换双凸极直流发电机电路适用于分瓣转子磁通切换双凸极直流发电机全桥整流发电场合，由分瓣转子磁通切换双凸极直流发电机、全桥不控整流电路和***电容支路组成。具体结构描述如下: 一种用于分瓣转子磁通切换双凸极直流发电机中点接电容电路，其特征在于：分瓣转子磁通切换双凸极直流发电机的A、B、C三相电枢绕组做星形连接构成绕组中点0，***电容支路由两个电容Cl、C2串联，电容Cl、C2的连接点与电机绕组中点0连接，A、B、C三相电枢绕组的未接中点0通过D1、D2、D3、D4、D5、D6构成的全桥不控整流电路接滤波电容C3向负载Z0供电。
与现有技术相比，本中点接电容分瓣转子磁通切换双凸极直流发电机电路具有如下特点：
a、该中点接电容分瓣转子磁通切换双凸极直流发电机电路用于发电机时，在同样的励磁功率下，发电机的外特性硬，功率因数高，发电功率最大值增加，从而显著提高了双凸极发电机的功率密度；
b、由于***电容支路与整流并联，兼有补偿功能和滤波作用，可有效减小滤波电容容量；
c、该整流发电电路适用于12/5、12/7、12/8、12/10、12/11、24/10、24/14、24/16、24/20、24/22（其中斜杠前面为定子极数，斜杠后面为分瓣转子极数）的电励磁分瓣转子磁通切换双凸极直流发电机、混合励磁双凸极直流发电机以及永磁分瓣转子磁通切换双凸极直流发电机中，尤其适合于速度变化范围小或恒速运行的场合。
附图说明
图1是本实用新型的电路结构示意图。
图中,A为A相电枢绕组， B为B相电枢绕组，C为C相电枢绕组,点0为绕组星型连接构成的中点；D1、D2、D3、D4、D5、D6构成全桥不控整流电路；Z0为负载；Cl、C2为***电容支路的电容；C3为滤波电容。
具体实施方式
参照附图，一种用于分瓣转子磁通切换双凸极直流发电机中点接电容电路，其特征在于：分瓣转子磁通切换双凸极直流发电机的A、B、C三相电枢绕组做星形连接构成绕组中点0，***电容支路由两个电容Cl、C2串联，电容Cl、C2的连接点与电机绕组中点0连接，A、B、C三相电枢绕组未接中点0通过D1、D2、D3、D4、D5、D6构成的全桥不控整流电路接滤波电容C3向负载Z0供电。电路接法如图1所示。
本实用新型利用***电容上流过容性电流，补偿由于分瓣转子磁通切换双凸极直流发电机电枢绕组存在电感而引起的感性电流。***电容支路作用于发电机时，在同样的励磁功率下，发电机的外特性硬，功率因数高，从而显著提高了分瓣转子磁通切换双凸极直流发电机的功率密度。对于同一结构参数的分瓣转子磁通切换双凸极直流发电机，为了达到最佳的补偿效果，使其拥有最高的功率因数，可通过调配***电容支路上两个电容的容值，以获得最大的发电机功率密度。由于分瓣转子磁通切换双凸极直流发电机的相电感随转子电角度变化而变化，所以在电容取值时应以相绕组电感平均值的大小作为电容取值的依据，相绕组电感平均值较大时选用的补偿电容容值小；相绕组电感平均值较小时，需要的电容容值大；在高速下运行时，需要的补偿电容容值小；低速运行时，需要的电容容值大。同时由于***电容支路与整流拓扑并联，兼有补偿功能和滤波作用，可有效减小滤波电容容量。

Claims (1)

1.一种用于分瓣转子磁通切换双凸极直流发电机中点接电容电路，其特征在于：分瓣转子磁通切换双凸极直流发电机的A、B、C三相电枢绕组做星形连接构成绕组中点0，***电容支路由两个电容Cl、C2串联，电容Cl、C2的连接点与电机绕组中点0连接，A、B、C三相电枢绕组的未接中点0通过D1、D2、D3、D4、D5、D6构成的全桥不控整流电路接滤波电容C3向负载Z0供电。
CN2013200103761U 2013-01-09 2013-01-09 用于分瓣转子磁通切换双凸极直流发电机中点接电容电路 Expired - Fee Related CN202997846U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103915945A (zh) * 2013-01-09 2014-07-09 济南吉美乐电源技术有限公司 用于分瓣转子磁通切换双凸极直流发电机中点接电容电路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103915945A (zh) * 2013-01-09 2014-07-09 济南吉美乐电源技术有限公司 用于分瓣转子磁通切换双凸极直流发电机中点接电容电路

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