CN1224542A - 具有电动机的高压设备 - Google Patents

具有电动机的高压设备 Download PDF

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CN1224542A
CN1224542A CN97195007A CN97195007A CN1224542A CN 1224542 A CN1224542 A CN 1224542A CN 97195007 A CN97195007 A CN 97195007A CN 97195007 A CN97195007 A CN 97195007A CN 1224542 A CN1224542 A CN 1224542A
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motor
equipment
winding
layer
conductor
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CN100403626C (zh
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马茨·雷永
拉斯·格特马尔
伦纳特·布兰德
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ABB Technology AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60MPOWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M3/00Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/288Shielding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/323Insulation between winding turns, between winding layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00Cores, Yokes, or armatures
    • H01F3/10Composite arrangements of magnetic circuits
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00Cores, Yokes, or armatures
    • H01F3/10Composite arrangements of magnetic circuits
    • H01F3/14Constrictions; Gaps, e.g. air-gaps
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/025Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/049Rectifiers associated with stationary parts, e.g. stator cores
    • H02K11/05Rectifiers associated with casings, enclosures or brackets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12Impregnating, heating or drying of windings, stators, rotors or machines
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/14Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28Layout of windings or of connections between windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/32Windings characterised by the shape, form or construction of the insulation
    • H02K3/40Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/48Fastening of windings on the stator or rotor structure in slots
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • H01F2027/2833Wires using coaxial cable as wire
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F2027/329Insulation with semiconducting layer, e.g. to reduce corona effect
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
    • 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
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • H02K1/165Shape, form or location of the slots
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2203/00Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/15Machines characterised by cable windings, e.g. high-voltage cables, ribbon cables
    • YGENERAL 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
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Abstract

在一种配备有绝缘导体并经由该绝缘导体而与高电流连接的一或多组电机的设备中,至少一个电机的磁路可直接地与一高供应电压20—800kV相连,最好能高于36kV。每一电机的绝缘是由构成绕组的电缆6所组成,该电缆(6)含有一或多个内含一些导线(36)的载流导体(31),并被内外两个半导体层(34,32)与中间绝缘层(33)所包围。该导体可以组并联,而半导体层也不必包围组内的每一支导体。若导体(31)在组内是以串联方式连接则需要一个部分绝缘(35)以抵抗几个kV的电压,其中导体(31)与每一相位的连接处需有一较强的部分绝缘以抵抗高电压供应网络的相位电压。

Description

具有电动机的高压设备
本发明涉及一种包含有连接到配电或传输网络的电动机的设备,该网络又称为电网。其次本发明涉及一种供该设备使用的电动机。该电动机可为同步或异步型式。
含有电动机的设备可以是一个轧钢机,造纸机,纸浆干燥机,矿山设备,码头装置,风扇,泵或压缩机系统,提升装置,移车台,起重机,离心分离机,输送机,车间设备,炼钢设备等。因此可知该含有电动机的设备有广泛的用途。
在个别电动机的磁力回路中通常含有一叠片铁心,比如焊接的钢片。为使铁心通风与冷却,该铁心通常被分为具有径向和/或轴向通风导管的叠件。就大电动机而言,该叠片被分成数个段落并贴附于机器的支架上,该叠片铁心是以压力指与压力环予以固定。该绕组置于叠片铁心的沟槽内,该沟槽通常是矩形或梯形的断面。
多相的电动机中,其绕组通常为单层或双层。单层绕组中每一沟槽只有一线圈边,而双层绕组中每一沟槽则有两个线圈边。所谓线圈边意指将一或多组导体以垂直或水平方式组合并外附有共同的线圈绝缘,也就是该绝缘可抵抗电动机至地的额定电压。
双层绕组通常做成钻石绕组,而本文的单层绕组则做成钻石或平绕组。钻石绕组中只有一个(可能两个)线圈宽度,而平绕组则做成同心形状,也就是具有可变的线圈宽度。所谓线圈宽度是指两线圈边之间相对于同一线圈的弧形距离。
通常所有大型电动机都是由双层绕组与同尺寸的线圈所组成。每一线圈之一侧置于一层而另一侧则置于另一层中。此意味着所有线圈皆在线圈末端处互相交错。如果大于两层的话,此交错处将使绕组工作变得非常复杂,而线圈末端也变得不太理想。
一般认为旋转式电动机的线圈可在电压范围10-20kV的情况下获得良好的制造效果。
大的交流电动机可分为同步与异步电动机,前者可涵盖至数十个MW的高功率,且供应电压最高可达20kV。同步电机的转子速度是与网络频率同步。而在异步电动机中,磁场转速较转子为快使得感应的电流可在旋转的方向提供力矩。两种电动机在构造上极为相似。它们含有定子与置于定子内的转子。定子是由叠件铁心并有供绕组的沟槽开口所组成。定子是由其底部而固定于基础的底盒内。转子是悬挂于盒内的轴承上。定子外壳可置于底盒上以保护主动元件。该外壳可有一些开口供冷空气流入。
交流电动机的功能是根据磁场,电流与机械运动间的互动关系而得。磁场主要是产生于机器的磁铁部分而电流则是产生于绕组中。
两种主要的交流电动机:同步与异步机之间有一明显的区别。同步与异步机的主要差异在于力矩是如何产生的。同步电动机是经由无刷励磁机或集电环从外部将能量供应给转子而励磁的,而异步电动机则是利用定子电流经由感应而获得励磁能。所以同步电动机的转速便不像异步电动机那样是因负载而定。
而依转子之不同结构又可将同步电动机分为两种:具有凸极的以及具有圆柱转子的电动机。在高速两-极的操作下,转子上的机械应力将非地高,所以最好使用圆柱型的转子。那些低速,四或更多极的电动机,其转子直径将会更大。就其低速与较低的机械应力而言,该转子以含有凸极为佳。
两种形式的界定并不明显。在高功率与四极形式所使用的圆柱型转子具有长与细的形状。在低功率与四极形式所使用的转子则含有凸极。
异步电动机同样可分为两种形式:鼠笼感应电动机或集电环电动机。两者的共同点是该转子皆由附有转子绕组之沟槽的叠片所组成。而不同处在于绕组的结构。鼠笼感应电动机之鼠笼式绕组含有轴向杆,其末端附有短路环可予以短路。而具有集电环的异步电动机在转子中含有一个三相绕组,其相端点与集电环连接。
通过设计各种不同形式的转子沟槽可使鼠笼式感应电动机的起动与操作特性得以符合各种的操作需求。集电环式异步电动机通用于很难起动的情况下。外部的电阻可经由集电环连接。若转子电阻增加的话,最大的力矩将发生于较低速时,因而使起动力矩增加。当起动完成后,该外部起动电阻可予以短路。
有关大型交流电动机的形式,及冷却方法的选择是依下列因素而定:
·负载的力矩特性
·负载形式与负载周期
·起动功率限制
·网络特性
·电能成本
·电动机安装的环境
·和设备的预计寿命有关的投资成本
对电机的主要需求是希望其生产成本与营运成本都能降低。所以可在某一特定功率因数下使效率尽可能提高。而一般来说,同步电动机比异步电动机更有效率。
同步电动机的转子通常含有凸极。其主要使用于1MW至数十个MW的功率范围之间,比如像造纸业所使用的研磨机与精制机,在加工业与连结较弱网络,如沙漠国家之灌溉系统等所使用大型泵。石油工业所使用的泵与压缩机也都是大型的同步电动机。
使用同步电动机而不采用较便宜的异步电动机的主要原因是同步电动机对网络所造成的应力较低,起动电流也较低,而且在过激状态下同步电动机也可改善其功率因数。大型的同步电动机也比同型的异步电动机的功率稍高一些。
在线圈的绕组之间以及线圈与周围环境之间都必须予以绝缘。各种塑料,油漆与玻璃纤维等都可作为绝缘材料。线圈末端须予以支撑以抵抗出现于各线圈之间,特别在短路处所产生的内力。
如上所述的电动机可经由一降压变压器而与如145kV等高压网络相连。此种经由一变压器而与高压网络相连的电动机将有许多的缺点。其中的缺点有:
·变压器很昂贵,增加输送成本并需要空间
·变压器会降低系统效率
·变压器会消耗无功功率
·传统的变压器含有油,所以有相关的危险
·因为电动机会经由变压器而与一较弱的网络作用,所以需要灵敏的操作。
因此本发明的目的便是要使用一个或多个电动机直接地与高电压的供电网络相连,也就是说不经由中间的变压器而直接与变电及配电网络相连。
之所以能实现上述之目的是因不使用中间的充油变压器所致,而变压器的电抗会消耗无功功率。
本发明的目的得以实现是因权利要求1的前序部分中所提到的设备含有该权利要求特征部分所描述的特征,以及权利要求25前序部分中所提到的电动机含有该权利要求特征部分中所描述的特征。
由于有特殊的固体绝缘系统,所以供应该设备的电动机的电压比现有技术者还要高,而且是高电压电力网络所能达到的最高电压。
由于上述的优点使得变压器成为多余,因而消除了所有要降压之设备的所有问题,也有其他显著的优点。本发明设备的过载容量可迅速提升。通常是一或二小时便可增加+100%,而可选择较低额定输出的电动机,使成本降低。
因电动机的输出是与电压的平方成正比,所以高电压也使电动机的输出增加。本发明的电动机可获得高功率。也可将电机的作用面积延伸至1-300MW的范围或甚至可在更高的功率状态下作用。
已知技术与本发明的实施例的主要和基本差异在于使至少一个电动机中的磁路,该电动机直接地经由如断路器与隔离器等接合装置而与一高供电电压相连。该磁路含有一个或多个叠片铁心。而绕组则由一或多支永久绝缘导体的螺纹式电缆所组成,而在导体与绝缘层外各有一半导体层,外半导体层与地电位相连。
本发明的设备中的至少一个电动机因拥有许多已知技术所没有的特征而得以解决将旋转与静态电动机等两种电动机直接与各种高压电力网络相连的问题。其余特征与其他实施例则定义于从属权利要求中,并叙述如下。
上述提及的特征与设备以及其中的至少一个电动机的其他基本特征包含有下列:
·绕组是从一个或多个永久绝缘导体并在导体与护套皆附有半导体层的电缆所组成。此典型的导体有如PEX电缆或附有EP橡胶绝缘的电缆,而此物质可再应用于导体内的导线与外护套上。PEX=交连聚乙烯(XLPE)。EP=乙烯-丙烯。
·电缆以圆形断面较佳,但其他可获得较佳组装密度的断面也同样可采用。
·就沟槽与齿而言,可以较新的与最佳的方式依本发明设计该多层的铁心。
·该绕组最好能有阶梯式绝缘,以供多层铁心使用。
·该绕组最好能制成多层,同心的电缆绕组,而使线圈末端的交点数减少。
·该沟槽设计需配合绕组电缆的断面,使得沟槽在轴向和/或径向上有一些圆柱形的开口,而每层的定子绕组间则有一开放式的腰部组织。
·该沟槽的设计可配合相关的电缆断面以及绕组的阶梯状绝缘层。该阶梯状的绝缘层使得不论径向延伸为何皆使磁心有基本固定的齿宽。
·上述的进一步结果所谈到的导线使得该绕组导体含有一些压紧层,也就是从电机的观点来说,绝缘的导线并不需正确地予以转置,无绝缘和/或互相绝缘。
·上述的进一步结果所谈到的外护套使得在沿导体的适当位置上需将外护套切除,而每一切断的部分长度皆直接与地电位相连。
使用上述形式的电缆可使得绕组的外护套的全长以及该设备的其他部分都能维持在地电位。其重要的优点是位于线圈末端区域内,外半导体层之间的电场强度趋近于零。因外护套为地电位,所以电场不需加以控制。此意谓著,不论在铁心,线圈末端区或是两者之间的过渡区等皆不会有磁场集中的情形发生。
将绝缘和/或无绝缘的压缩导线,或转置的导线混合的结界产生非常低的杂散损耗。
绕组所使用的高压电缆是由含有许多导线的内铁心/导体,以及至少两个半导体层所组成,而其最内层则被一绝缘层所包围,接着是被一外径为10-250mm之外半导体层以及导体面积为40-3000mm2所包围。
若本发明的设备中的至少一个电动机是依上述方法建构的话,则该电动机的启动与控制装置便能利用引言文献所描述的启动方法来完成。
依本发明的一种特殊实施例,该所有层中的至少两层,最好是三层皆有相同的热膨胀系数。此优点在于绕组时可避免因热运动所产生的缺陷与裂痕。
而本发明的另一重要的较佳实施例中,设备中至少一个电动机含有一个或多个连接电压。
从本发明的另一角度看,上述之目的可通过权利要求23的前序部分中所描述的设备来完成,而其特征则限定于该权利要求的特征部分中。
因该绝缘系统,以永久式为佳,是依热力与电力观点将其设计成供36kV以上之电压使用,所以该设备可直接与高电压电力网络相连而毋须任何的中间的降压变压器,由此得到其优点。该设备最好(但不是必需)能依据权利要求1至27中的任何一项所限定的特征来建构。
上述与其他的优良实施例将但并不一定需要限定于从属权利要求中。
本发明将以下列设备中电动机之磁路的较佳实施例来做更详细的说明,所列图示为
图1是本发明的设备中电动机的定子的扇形部分的轴向末端示意图,
图2是图1的定子的绕组所使用的电缆的层状剥离端视图,
图3-图7是已知的各种不同的起动电路。
如图1所示为本发明的设备内的电动机的定子1的扇形部分的轴向示意图,图中亦有该电动机的转子2。定子1通常是传统叠片铁心的形式。图1所示的电动机的扇形部分对应于一个极距。从位于铁心径向最远处的轭铁部分3开始有一些齿状物4在转子2的径向上延伸,该齿状物以沟槽5分隔,而其中配置有定子绕组。此定子绕组是由高电压的电缆6所构成,这些电缆与一般如PEX等配电电缆几乎完全相同。而不同之处在于不需要配电电缆通常环绕的机械式的保护套,也不需要包围该配电电缆的金属屏蔽,所以本发明的电缆通常只含有导体以及在其绝缘层的每一侧有至少一个半导体层。因此,对机械损坏很敏感的半导体层是裸露于电缆的表层。
如图1所示的电缆6只绘出每一电缆的中心传导部分或线圈侧边。如图所示的变断面沟槽5皆有交互出现的宽部分7与窄部分8。宽部分7近乎为圆形并围绕该缆线,而宽部分间的腰部则为窄部分8。腰部分可用来径向固定每一缆线。沟槽5的断面径向向内逐渐缩小。这是因为越靠近定子径向内部的电缆有着较低的电压所致。所以此处可用较细的缆线,而外围则使用较粗的绕组。如所示之例有三种不同的电缆尺寸,其分别为图中沟槽5的51,52,53。
图2所示为使用于电动机中的高压电缆的逐层剥离视图。该高压电缆6含有一个或多个导体31,而导体则是由数条导线36组成并形成一含铜(cu)的圆形断面。该导体31位于高压电缆6的轴心,并在该实施例中被一绝缘零件35所包覆。然而,其中一个导线31可舍去其绝缘零件35。在本发明的实施例中,数支导体31是一起被第一半导体层32所包覆。第一半导体层32外则环绕有如PEX等绝缘层33。而接着是由第二半导体层34所包覆。因此,本发明所谓的“高电压电缆”并未含有一般配电电缆所包覆的金属屏幕蔽或外护套。
图3-7是以基本的圆形来描述可用于本发明设备的旋转电动机的启动程序。以下是图中的名称解释:
U:高电压网络      Xt变压器阻抗
Xn:网络阻抗       R:电抗器
B:断路器         Xr:电抗器阻抗
M:电动机         C:电容器
Xm:电动机阻抗    Xc:电容器阻抗
T:变压器         L:三相定子绕组
因此图3是变压器启动的程序,图4是电抗器启动的程序,图5是部分-绕组起动的程序,图6是电容器起动的程序,而图7则是组合式电抗器与电容器启动的程序。其他组合的启动程序同样可应用于本发明的设备中。各种不同的程序描述于本发明的引言的参考文献中。
因此,工厂中若含有一个或多个依本发明的旋转电动机的话便可直接地与高电压供电网络,也就是供应20kV或更高的电压的网络相连,因而可省去至少一个变压器。
在设备的电动机之间使用永久绝缘的电力缆线,并使电动机紧密配置的话可使电场变小而且套管/接头可完全消除。

Claims (28)

1.一种高电压设备,含有一个或多个电动机,每个电动机至少含有一个绕组,其中至少一组该电动机的绕组含有包括至少两个半导体层的绝缘系统,每一层皆构成一等电位平面,而层与层中间也含有固体绝缘系统。
2.如权利要求1的设备,其特征在于至少一个电动机具有一或多个连接电压。
3.如权利要求1或2的设备,其特征在于至少一层与固体绝缘系统有基本相同的热膨胀系数。
4.如权利要求1-3中任一项的设备,其特征在于所有电力的转换都发生于同一电动机中。
5.如权利要求1-4中任一项的设备,其特征在于该绝缘是由含有一个或多个载流导体(31)的高压电缆(6)所构成,而导体外则被至少两个半导体层(32,34)以及固体绝缘的中间绝缘层(33)所包围。
6.如权利要求5的设备,其特征在于该最内的半导体层(32)几乎与导体(31)同电位。
7.如权利要求5或6的设备,其特征在于一个外半导体层(34)可形成一环绕导体(31)的等电位平面。
8.如权利要求7的设备,其特征在于该外半导体层(34)与一特定的电位连接。
9.如权利要求8的设备,其特征在于该特定电位是地电位。
10.如权利要求第5-9中任一项的设备,其特征在于至少两个该层具有相同的热膨胀系数。
11.如权利要求5-7中任一项的设备,其特征在于该载流导体含有一些导线,而其中只有一些导线不互相绝缘。
12.如权利要求1-11中任一项的设备,其特征在于由电缆组成的绕组含有一或多个载流导体(2),每一导体含有一些导线,一个内半导体层(3)可用来环绕每一导体,一个固体绝缘的绝缘层(4)可包围每一内半导体层(3),而一外半导体层(5)可包围每一绝缘层(4)。
13.如权利要求12的设备,其特征在于该电缆也含有一金属屏蔽与一护套。
14.如前述权利要求中任一项的设备,其特征在于该电动机的定子是通过空气流和/或液体流而冷却于地电位。
15.如前述权利要求中任一项的设备,其特征在于该高压电缆(6)的导体面积为40至3000mm2之间,且其外径在10至250mm之间。
16.如前权利要求中任一项的设备,其特征在于该起动和/或故障电流或旋转电动机的电流是受限于一电子静态机,也就是可暂时和/或永久与旋转电机的电枢绕组串连的一组电抗器/电感器。
17.如前述权利要求中任一项的设备,其特征在于至少一组电动机的中性点是经由一阻抗而接地。
18.如前述权利要求中任一项的设备,其特征在于至少一组电动机的中性点直接接地。
19.如前述权利要求中任一项的设备,其特征在于该电动机可以暂时的大过载荷量作为无功功率的产生器。
20.如前述权利要求中任一项的设备,其特征在于该电动机可经由一接合装置而与一配电网络或传输网络相连而无需任何中间的降压变压器。
21.如前述权利要求中任一项的设备,其特征在于该电动机所连接的配电网络或传输网络的供电电压超过36kV。
22.如前述权利要求中任一项的设备,其特征在于该电动机的绕组可用于自我调节磁场控制并且无需辅助装置以控制该磁场。
23.一种高电压的电气设备,含有一个或多个电动机,每个电动机至少含有一个绕组,其特征在于,至少一个电动机的绕组含有一种绝缘系统,使得就热力与电力性质而言可使电压超过36kV。
24.如权利要求23的设备,其特征在于该电动机含有定义于权利要求1-21中任一项所述的设备的特征。
25.一种电动机,包含至少一个绕组,其特征在于该绕组有包括至少两个半导体层的固体绝缘系统,每一半导体层皆构成一等电位平面,而层与层中间也含有固体绝缘系统。
26.如权利要求25的电动机,其特征在于该定子绕组被分为两部分以达到部分绕组启动。
27.如权利要求25或26的电动机,其特征在于其具有一个或多个连接电压。
28.如权利要求25-27中任一项的电动机,其特征在于其包含有使用于权利要求2-24中任一项所定义的设备中的电动机的特征。
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CN97196553A Pending CN1225755A (zh) 1996-05-29 1997-05-27 具有磁路的高压旋转电机及其制造方法
CNB971950075A Expired - Lifetime CN100403626C (zh) 1996-05-29 1997-05-27 具有电动机的高压设备
CN200910128640XA Expired - Lifetime CN101546932B (zh) 1996-05-29 1997-05-27 具有磁路的高压旋转电机及其制造方法
CN2008100850759A Expired - Fee Related CN101242125B (zh) 1996-05-29 1997-05-27 非同步旋转转换器和发电机装置
CN97195026A Expired - Fee Related CN1100377C (zh) 1996-05-29 1997-05-27 同步补偿装置
CN97195035A Pending CN1220051A (zh) 1996-05-29 1997-05-27 非同步旋转转换器和发电机装置
CN97195013A Expired - Fee Related CN1097335C (zh) 1996-05-29 1997-05-27 水力发电设备
CN97195034A Expired - Fee Related CN1083356C (zh) 1996-05-29 1997-05-27 用于车辆的电驱动系统
CN97195012A Expired - Fee Related CN1103133C (zh) 1996-05-29 1997-05-27 涡轮发电机设备

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CN200910128640XA Expired - Lifetime CN101546932B (zh) 1996-05-29 1997-05-27 具有磁路的高压旋转电机及其制造方法
CN2008100850759A Expired - Fee Related CN101242125B (zh) 1996-05-29 1997-05-27 非同步旋转转换器和发电机装置
CN97195026A Expired - Fee Related CN1100377C (zh) 1996-05-29 1997-05-27 同步补偿装置
CN97195035A Pending CN1220051A (zh) 1996-05-29 1997-05-27 非同步旋转转换器和发电机装置
CN97195013A Expired - Fee Related CN1097335C (zh) 1996-05-29 1997-05-27 水力发电设备
CN97195034A Expired - Fee Related CN1083356C (zh) 1996-05-29 1997-05-27 用于车辆的电驱动系统
CN97195012A Expired - Fee Related CN1103133C (zh) 1996-05-29 1997-05-27 涡轮发电机设备

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CN104670045A (zh) * 2013-12-03 2015-06-03 北车大连电力牵引研发中心有限公司 车辆牵引系统
CN104670045B (zh) * 2013-12-03 2017-02-15 中车大连电力牵引研发中心有限公司 车辆牵引系统

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SE9602079D0 (sv) 1996-05-29
US20010055217A1 (en) 2001-12-27
BG102926A (en) 1999-06-30
JP2000511391A (ja) 2000-08-29
AU2988197A (en) 1998-01-05
ZA974718B (en) 1998-09-04
WO1997045919A2 (en) 1997-12-04
WO1997045927A1 (en) 1997-12-04
PL330215A1 (en) 1999-05-10
AU731064B2 (en) 2001-03-22
WO1997045924A1 (en) 1997-12-04
ATE356460T1 (de) 2007-03-15
CZ388298A3 (cs) 1999-02-17
EP0901701A1 (en) 1999-03-17
CO4920189A1 (es) 2000-05-29
JP2000511388A (ja) 2000-08-29

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