CN2857312Y - 混合励磁源无刷发电机 - Google Patents

混合励磁源无刷发电机 Download PDF

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Publication number
CN2857312Y
CN2857312Y CN 200520098879 CN200520098879U CN2857312Y CN 2857312 Y CN2857312 Y CN 2857312Y CN 200520098879 CN200520098879 CN 200520098879 CN 200520098879 U CN200520098879 U CN 200520098879U CN 2857312 Y CN2857312 Y CN 2857312Y
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grooves
source
stator
brushless
generator
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CN 200520098879
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林政安
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Tellhow Sci Tech Co Ltd
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Tellhow Sci Tech Co Ltd
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Abstract

一种混合励磁源无刷发电机,其特征是在无刷交流同步发电机的主定子中,设置混合励磁源绕组,在定子槽数36、2极电机中,布有13圈绕组。所有导体都提供谐波源。本实用新型的优点在于:1.在励磁机定子中埋设若干个对永磁稀土磁铁,提高了起励能力和避免失磁现象;2.在主电机定子中,布有混合励磁源绕组,空载和负载时能量相差不大。

Description

混合励磁源无刷发电机
                     技术领域
本实用新型涉及一种混合励磁源无刷发电机。
                     背景技术
一般无刷发电机同轴的交流励磁机,其励磁源取自机端电压,或取自主电机定子中的基波辅助绕组,或取自谐波辅助绕组,它们都是以基波电压或谐波电压为主的励磁源,称为单种励磁源。单种励磁源有固有缺陷,例如基波励磁源,可能造成电磁干扰,复励或强励能力不够,启动异步电动机能力低等。而谐波励磁源可能造成启励难,空载和负载时能量相差太大,AVR失控等。
                     发明内容
本实用新型的目的在于提供一种混合励磁源无刷发电机,克服单种励磁源存在的电磁干拢,启动异步电动机能力低,空载和负载时能量相差太大的缺陷。
本实用新型这样来实现在的,在励磁机定子中埋设若干对永磁稀土磁铁,提高起励能力和避免失磁现象。在无刷交流同步发电机的主定子中,设置混合励磁源绕组,在定子槽数36、2极电机中,布有13圈绕组。每圈匝数相同,在1、2、3、5、6、7槽中,13、14、18、19槽中,25、26、27、29、30、31槽中布有开口型的同心式绕组8圈。在8、9、11、12槽中,20、21、23、24槽中,32、36槽中布有闭口型的同心式绕组共5圈。其中Y=1-3的4个线圈3-5,9-11,21-23,27-29提供基波源,所有导体都提供谐波源。
本实用新型的优点在于:1、在励磁机定子中埋设若干个对永磁稀土磁铁,提高了起励能力和避免失磁现象;2、在主电机定子中,布有混合励磁源绕组,空载和负载时能量相差不大。
                    附图说明
图1为本实用新型的混合励磁源绕组布置图。
                  具体实施方式
如图1所示,在36槽电机中,布有混合励磁源绕组,每圈匝数相等,同心式不等圈布置。这种混合励磁源绕组,谐波约占3/4,基波约占1/4。因此,有利于改善起励性能,有利于启动异步机性能,启动0.7PH空载异步机后能维持发电机电压,同时又确保了复励和强励能力,电机过载能力大,瞬态调整率小,这种混合励磁源绕组在实施中还收到缩小电机和节约材料的效果,在一种单相DW-2-2P无刷发电机中,这种2kw电机谐波励磁,铁芯长度取85mm,用混合励磁源绕组铁芯长度为75mm,缩短了10mm,节材约10/75=13%。电机各性能均不低于原电机性能,电机还增容到2.6kw,取得了明显的经济效果。

Claims (1)

1、一种混合励磁源无刷发电机,其特征是在无刷交流同步发电机的主定子中,设置混合励磁源绕组,在定子槽数36、2极电机中,布有13圈绕组,每圈匝数相同,在1、2、3、5、6、7槽中,13、14、18、19槽中,25、26、27、29、30、31槽中布有开口型的同心式绕组8圈,在8、9、11、12槽中,20、21、23、24槽中,32、36槽中布有闭口型的同心式绕组共5圈。
CN 200520098879 2005-11-18 2005-11-18 混合励磁源无刷发电机 Expired - Lifetime CN2857312Y (zh)

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CN 200520098879 CN2857312Y (zh) 2005-11-18 2005-11-18 混合励磁源无刷发电机

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CN 200520098879 CN2857312Y (zh) 2005-11-18 2005-11-18 混合励磁源无刷发电机

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CN2857312Y true CN2857312Y (zh) 2007-01-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104638860B (zh) * 2013-11-11 2018-05-25 黄劭刚 谐波自励混合磁极交流励磁机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104638860B (zh) * 2013-11-11 2018-05-25 黄劭刚 谐波自励混合磁极交流励磁机

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Assignee: Jiangxi Taihao Special Motor Co., Ltd.

Assignor: Taihao Science & Technology Co., Ltd.

Contract fulfillment period: 2008.8.25 to 2015.8.25

Contract record no.: 2008360000016

Denomination of utility model: Mixed exciting source brushless dynamo

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Record date: 20081009

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