CN105978196A - 一种可控磁通永磁同步电机的转子 - Google Patents

一种可控磁通永磁同步电机的转子 Download PDF

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Publication number
CN105978196A
CN105978196A CN201610483532.4A CN201610483532A CN105978196A CN 105978196 A CN105978196 A CN 105978196A CN 201610483532 A CN201610483532 A CN 201610483532A CN 105978196 A CN105978196 A CN 105978196A
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China
Prior art keywords
rotor
permanent magnet
synchronous motor
magnet synchronous
magnetic
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CN201610483532.4A
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English (en)
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徐�明
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Wuxi New Great Power Electrical Machine Co Ltd
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Wuxi New Great Power Electrical Machine Co Ltd
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Priority to CN201610483532.4A priority Critical patent/CN105978196A/zh
Publication of CN105978196A publication Critical patent/CN105978196A/zh
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02Details

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

本发明公开了一种可控磁通永磁同步电机的转子。同步电机的转子具有四个磁极,每个所述磁极的磁通由四块径向为扇形并且切向磁化的铝镍钴永磁体提供。本发明实施例提供的一种可控磁通永磁同步电机的转子,具有在不增加逆变器容量的前提下,利用三相定子绕组施加直轴电流矢量脉冲产生的直轴电枢磁动势,以此来控制永磁同步电机永磁气隙磁场的强和弱,随后由转子上的永磁体保持住,即可以在很宽的调速范围内运行,而有没有过多的电枢损耗,也不会牺牲电机其他性能指标,是真正意义上的弱磁宽调速。

Description

一种可控磁通永磁同步电机的转子
技术领域
本发明涉及新能源汽车制造技术领域,尤其涉及一种混合励磁永磁同步电机的转子。
背景技术
随着经济的飞速发展,汽车已成为人们重要的出行方式之一,而电动汽车因其特有的能减少空气污染的优点,已成为当前汽车行业的研究热点。电动汽车在起动、爬坡等工作情况下,需要较大的输出转矩,此时汽车的行驶速度比较慢;在一些高速运行的场合,则需要在一个比较大的范围内能够恒功率调节汽车的行驶速度。
发明内容
为解决现有技术和实际情况中存在的上述问题,本发明提供了一种可控磁通永磁同步电机的转子。同步电机的转子具有四个磁极,每个所述磁极的磁通由四块径向为扇形并且切向磁化的铝镍钴永磁体提供。
优选地,各所述铝镍钴永磁体的两侧是软磁材料体。
优选地,相邻两个所述软磁材料体之间设置非磁性材料。
有益效果:
本发明实施例提供的一种可控磁通永磁同步电机的转子,具有在不增加逆变器容量的前提下,利用三相定子绕组施加直轴电流矢量脉冲产生的直轴电枢磁动势,以此来控制永磁同步电机永磁气隙磁场的强和弱,随后由转子上的永磁体保持住,即可以在很宽的调速范围内运行,而有没有过多的电枢损耗,也不会牺牲电机其他性能指标,是真正意义上的弱磁宽调速。
具体实施方式
下面详细介绍本发明技术方案。
本发明的实施例公开一种可控磁通永磁同步电机的转子,其特征在于,同步电机的转子具有四个磁极,每个所述磁极的磁通由四块径向为扇形并且切向磁化的铝镍钴永磁体提供。
进一步地,各所述铝镍钴永磁体的两侧是导磁性能良好的软磁材料体(构成转子永磁磁极极靴的一半)。
进一步地,相邻两个所述软磁材料体之间设置非磁性材料(两个极靴之间放置非磁性材料)。
本发明实施例提供的一种可控磁通永磁同步电机的转子,具有在不增加逆变器容量的前提下,利用三相定子绕组施加直轴电流矢量脉冲产生的直轴电枢磁动势,以此来控制永磁同步电机永磁气隙磁场的强和弱,随后由转子上的永磁体保持住,即可以在很宽的调速范围内运行,而有没有过多的电枢损耗,也不会牺牲电机其他性能指标,是真正意义上的弱磁宽调速。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (3)

1.一种可控磁通永磁同步电机的转子,其特征在于,同步电机的转子具有四个磁极,每个所述磁极的磁通由四块径向为扇形并且切向磁化的铝镍钴永磁体提供。
2.根据权利要求1所述的可控磁通永磁同步电机的转子,其特征在于,各所述铝镍钴永磁体的两侧是软磁材料体。
3.根据权利要求1所述的可控磁通永磁同步电机的转子,其特征在于,相邻两个所述软磁材料体之间设置非磁性材料。
CN201610483532.4A 2016-06-28 2016-06-28 一种可控磁通永磁同步电机的转子 Pending CN105978196A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1617422A (zh) * 2004-11-29 2005-05-18 天津大学 多极数内置混合式转子磁路结构可控磁通永磁同步电机
CN201146439Y (zh) * 2008-01-25 2008-11-05 东南大学 可变磁通永磁同步电动机
CN102403856A (zh) * 2011-09-05 2012-04-04 同济大学 电动车用可控磁通永磁同步电机及控制***
CN104795956A (zh) * 2015-05-05 2015-07-22 南京信息工程大学 一种复合永磁可控磁通轴向磁场永磁同步电机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1617422A (zh) * 2004-11-29 2005-05-18 天津大学 多极数内置混合式转子磁路结构可控磁通永磁同步电机
CN201146439Y (zh) * 2008-01-25 2008-11-05 东南大学 可变磁通永磁同步电动机
CN102403856A (zh) * 2011-09-05 2012-04-04 同济大学 电动车用可控磁通永磁同步电机及控制***
CN104795956A (zh) * 2015-05-05 2015-07-22 南京信息工程大学 一种复合永磁可控磁通轴向磁场永磁同步电机

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Application publication date: 20160928