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WO2009024009A1 - Double active parts structure of reactor - Google Patents

Double active parts structure of reactor Download PDF

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Publication number
WO2009024009A1
WO2009024009A1 PCT/CN2008/001229 CN2008001229W WO2009024009A1 WO 2009024009 A1 WO2009024009 A1 WO 2009024009A1 CN 2008001229 W CN2008001229 W CN 2008001229W WO 2009024009 A1 WO2009024009 A1 WO 2009024009A1
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WO
WIPO (PCT)
Prior art keywords
coil
parallel
reactor
bodies
coils
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.)
Ceased
Application number
PCT/CN2008/001229
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English (en)
French (fr)
Inventor
Juntao Zhong
Yumin Ren
Xingyao Gao
Chunzhen Gu
Shubo Sun
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.)
Tebian Electric Apparatus Stock Co Ltd
Original Assignee
Tebian Electric Apparatus Stock 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
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Application filed by Tebian Electric Apparatus Stock Co Ltd filed Critical Tebian Electric Apparatus Stock Co Ltd
Priority to CA2697050A priority Critical patent/CA2697050C/en
Priority to EP08772985.1A priority patent/EP2187409B1/en
Priority to BRPI0814921-6A priority patent/BRPI0814921B1/pt
Priority to US12/674,396 priority patent/US8203412B2/en
Publication of WO2009024009A1 publication Critical patent/WO2009024009A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00

Definitions

  • the invention belongs to the technical field of reactors and relates to a double body structure of a reactor. Background technique
  • the existing single-phase iron core reactors are all composed of a single Japanese-shaped iron core body and a single coil set.
  • This structure is suitable for products with a certain voltage and a certain capacity, but when the voltage level and capacity reach a certain level (such as voltage)
  • the voltage level and capacity reach a certain level (such as voltage)
  • the width and height of the product are further increased, which makes it difficult to transport the reactor.
  • the creepage distance of the insulation of the product itself is limited, it is not allowed to increase the voltage without limitation at a certain insulation distance.
  • the creepage voltage of the insulating member is increased, which may bring a safety hazard to the product. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a dual body structure of a reactor which is relatively simple in assembly, small in magnetic loss, and reliable in operation, in view of the above-mentioned deficiencies in the structure of a single body of a reactor in the prior art.
  • the dual body structure of the reactor comprises a reactor body, wherein the reactor body comprises two separate bodies, and the two bodies are connected by a coil inside thereof Together.
  • the arrangement of the two bodies may be parallel, and the arrangement may be such that the lead wires (connections between the two coils) are away from the ground potential, and the diameters of the lead wires may be reduced; or arranged in a line, using this In the arrangement mode, the magnetic flux leakage between the two coils in the two bodies of the reactor is small.
  • the two separate bodies each include a Japanese-shaped iron core, and the middle of the Japanese-shaped iron core is a plurality of iron core cakes with a central hole and a plurality of iron core pillars with overlapping air gaps.
  • the two bodies of the reactor are placed in the same reactor tank, and the insulation distance can be different due to the different voltages applied under the working voltage, so the size of the two bodies can be a large - Small, when the two bodies are in series, according to the specific situation, the voltage capacity of the first body can be 30-70%, and the voltage capacity of the second body is 70-30%.
  • the dimensions of the two bodies can be identical.
  • connection mode of the two coils may be a series connection or a parallel connection.
  • the coils inside the two bodies may be connected in series by the coils in the first body, that is, one end of the first coil is an incoming end, and the other end of the first coil and the coil in the second body are the second coil.
  • One end is connected, and the other end of the second coil is an outlet end, which is connected in series;
  • the series connection may also be that the first coil and the second coil are connected in series by the middle inlet line, that is, the first coil is used to enter the line in the middle of the coil, and the two The end is taken out and connected in parallel as the incoming line of the second coil.
  • the second coil is used to enter the line in the middle of the coil.
  • the two ends are connected in parallel and then the line is connected.
  • the two ends of the first coil are connected in parallel and connected in series with the middle line of the second coil. .
  • the number of coil array segments of the two coils is increased compared to the total number of segments of the single-column coil, and the total coil height is increased, so that the coils at the working voltage are in the surface.
  • the creepage distance is greatly increased, and the two coils share the working voltage to ensure the reliability of the insulation of the reactor under the working voltage.
  • the coils of the two bodies can be connected in parallel by: the ends of the coils are connected in parallel, that is, one ends of the two coils of the two bodies are connected in parallel as the incoming ends, and the other ends of the two coils are connected in parallel as the outgoing ends.
  • the line ends may be: the parallel connection may also be: the coil in the first body, that is, the first coil and the coil in the second body, that is, the second coil, adopts a central incoming line, and the central incoming end is connected in parallel, two The upper and lower ends of the coil are connected in parallel and then connected in parallel as the outlet end, that is, the first coil is used in the middle of the coil, and the upper and lower ends are taken out and connected in parallel, and the second coil is used in the middle of the coil, and the upper and lower ends thereof Outgoing and parallel, the first coil and the second coil are connected in parallel at the middle of the two coils, and the two ends of the first coil are connected in parallel with the two ends of the second coil as the outlet end.
  • Parallel connection can be adopted when the transportation and electrical performance are satisfied.
  • the insulation level of the coil end is not high.
  • connection manner of the coil of the present invention is not limited to the above four connection methods.
  • the invention adopts the double body structure, so that the pressing of the core of the single core and the clamping of the iron yoke are easily ensured, and the noise and vibration are controlled, and the same capacity is produced.
  • the concentration of reactors using single-body reactors has been improved, the temperature distribution of the entire product has been improved, and local hot spots in the body have been avoided.
  • the reactor of the invention reduces the capacity of the single column, the double body structure is advantageous for the control of the magnetic flux leakage and the heat dissipation of the winding, so that it can be applied to any reactor having different voltage levels and capacity requirements, for 1000 kV. , lOOOOOOkvar products, its insulation reliability and transportation can meet the requirements.
  • Figure 1 is a front view showing the structure of the two core bodies of the iron core reactor of the present invention
  • Figure 2 is a side view of Figure 1.
  • Figure 3 is a front view showing the structure of the double body in the core reactor of the present invention (when the two bodies are arranged in parallel)
  • Figure 4 is a top view of Figure 3.
  • Figure 5 is a front view showing the structure of the double body in the core reactor of the present invention (when the two bodies are arranged in a line shape)
  • Figure 6 is a top view of Figure 5.
  • Figure 7 is an enlarged view of Figure 4.
  • Figure 8 is a connection diagram of a series connection of two coils in the middle of the present invention
  • Figure 9 is a connection diagram of the parallel connection of the two coils in the middle of the present invention.
  • the core reactor includes a reactor main body 3 and an oil conservator 4.
  • the reactor main body 3 includes a reactor body, and the reactor body includes two separate bodies, and the two bodies form a double body structure, and the two bodies are connected together by coils inside thereof. Both bodies are placed in the reactor tank 6, and the oil tank 6 is in communication with the oil conservator 4.
  • each body body includes a Japanese-shaped iron core 7 and a coil 8, and each of the Japanese-shaped irons is a plurality of core cakes 9 with a central hole in the middle and more.
  • the iron core column 10 is formed by overlapping the air gaps.
  • the iron core column 10 is pulled down by a plurality of pulling screws passing through the center hole, and the upper, lower and both sides are formed by stacking iron cores of a certain thickness, and are clamped by the threading screw.
  • the coil 8 is placed on the core column 10.
  • the arrangement of the two bodies can be arranged in parallel (as shown in Figures 3 and 4) or in a line (as shown in Figures 5 and 6).
  • the coils 8 of the two bodies are connected in series or in parallel.
  • the first coil 11 and the second coil 12 are connected in series by a central incoming line, that is, the first coil 11 is used in the middle of the coil, and the ends are taken out and connected in parallel, the second coil 12 is adopted in the middle of the coil, the ends of which are taken out and connected in parallel, and the ends of the first coil 11 are connected in parallel and connected in series with the middle of the second coil 12.
  • the parallel connection is a coil in the first body, that is, the first coil 11 and the second body.
  • the coil that is, the second coil 12
  • the upper and lower ends are taken out and connected in parallel, the second coil is used in the middle of the coil, the upper and lower ends are out of line and connected in parallel, and the first coil and the second coil are connected in parallel at the middle end of the coil, and the two ends of the first coil are Both ends of the second coil are connected in parallel as an outgoing end.
  • connection methods are suitable for high-capacity, high-voltage reactor products, which can ensure that the reactor has good heat dissipation performance and reliable insulation performance.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

一种电抗器的双器身结构 技术领域
本发明属于电抗器技术领域， 涉及一种电抗器的双器身结构。 背景技术
现有的单相铁心电抗器都是由单个日字形铁心器身、 单个线圈 套装， 这种结构对于一定电压、 一定容量以下的产品是合适的， 但是 当电压等级、 容量达到一定程度 （如电压等级为 800KV、 容量为 lOOOOOkvar 的产品） 后， 随着产品的大型化， 产品的宽度、 高度尺 寸进一步增加， 给电抗器的运输带来了困难。 另外， 由于产品本身的 绝缘件爬电距离是有限制的， 并不是在一定绝缘距离下， 可以允许电 压无限制的增加。 当产品的电压等级进一步升高时， 绝缘件所承受的 爬电电压增加， 会给产品带来安全隐患。 发明内容
本发明所要解决的技术问题是针对现有技术中电抗器单器身结构 所存在的上述不足， 提供一种装配相对简单、 磁损耗小、 且运行可靠 的电抗器的双器身结构。
解决本发明技术问题所采用的技术方案是该电抗器的双器身结 构包括电抗器器身， 其中， 所述电抗器器身包括两个单独的器身， 两 器身通过其内部的线圈联接在一起。
两器身的排列方式可以为平行排列， 采用这种排列方式可以使 引出线 （两线圈之间的连线）远离地电位， 并且引出线的电极直径可 以缩小； 或呈一字形排列， 采用这种排列方式时电抗器两器身内两线 圈之间的漏磁互相干扰小。
两个单独的器身各包括一个日字形铁心， 日字形铁心中部为多 个带有中心孔的铁心饼和多个气隙交叠而成的铁心柱。
所述电抗器两器身都置于同一电抗器油箱内， 由于工作电压下 所作用的电压不同， 绝缘距离可以不同， 因此两器身的尺寸可为一大 —小， 在两器身为串联结构时， 根据具体情况， 第一个器身的电压容 量可为 30— 70% , 则第二个器身的电压容量为 70— 30%。 当然， 两器 身的尺寸也可以为完全相同。
两器身内部的线圈联接在一起可以通过串联联接， 也可以通过 并联联接。 即两线圈的连接方式可以为串联， 也可以为并联。
两器身内部的线圈通过串联联接在一起可以是第一器身中的线 圈即第一线圈的一端为进线端，第一线圈的另一端与第二器身中的线 圈即第二线圈的一端连接， 第二线圈的另一端为出线端， 形成串联联 接； 串联也可以是第一线圈与第二线圈采用中部进线串联连接， 即第 一线圈采用在线圈的中间部位进线，其两端部出线并且并联后作为第 二线圈的进线， 第二线圈采用在线圈的中部进线， 其两端部并联后出 线， 第一线圈两端部并联后与第二线圈的中部进线串联。
当本发明两器身内的两个线圈串联时，在满足运输高度的前提下， 两线圈的线圈排列段数比单柱线圈的总段数增加， 总的线圈高度增加， 使在工作电压下的线圈沿面的爬电距离大大增加， 两个线圈共同承受 工作电压， 保证了工作电压下的电抗器产品绝缘的可靠性。
两器身的线圈通过并联联接在一起可以是： 线圈端部并联， 即 两器身的两线圈的一端作为进线端并联在一起作进线端，两线圈的另 一端作为出线端并联在一起作出线端； 并联联接在一起也可以是： 第 一器身中的线圈即第一线圈与第二器身中的线圈即第二线圈都采用 中部进线， 并且中部进线端并联连接， 两线圈的上下两端并联在一起 后再并联作为出线端， 即第一线圈采用在线圈的中部进线， 其上下端 部出线并且并联， 第二线圈采用在线圈的中部进线， 其上下端部出线 并且并联， 第一线圈与第二线圈两线圈的中部进线端并联， 第一线圈 两端部与第二线圈的两端部并联联接作为出线端。
在满足运输和电气性能情况下可以采用并联的方式， 当采用中部 进线的方式时， 对线圈末端的绝缘水平要求不高。
当然， 本发明线圈的连接方式不限于上述四种连接方式。
本发明由于采用了双器身结构， 使单独铁心的心柱的压紧和铁轭 的夹紧容易保证， 进而对噪声和振动得到了控制， 同时比相同容量产 品采用单器身的电抗器损耗集中得到了改善， 改善了整个产品的温度 分布， 避免了器身中局部存在的热点问题。
由于本发明电抗器使单柱容量减小， 这种双器身结构对漏磁的 控制、 绕组的散热都有利， 因此可适用于任何一款有不同电压等级、 容量要求的电抗器， 对于 1000kV、 lOOOOOkvar的产品， 其绝缘可靠 性和运输方面都能满足要求。 附图说明
图 1 为本发明铁心电抗器两器身的结构主视图
图 2 为图 1的侧视图
图 3 为本发明铁心电抗器中双器身结构的主视图（两器身平行 排列时）
图 4 为图 3的俯视图
图 5 为本发明铁心电抗器中双器身结构的主视图（两器身呈一 字形排列时）
图 6 为图 5的俯视图
图 7 为图 4的放大视图
图 8 为本发明两线圈中部进线串联的连接图
图 9 为本发明两线圈中部出线并联的连接图
图中： 1一高压套管 2—中性点高压套管 3—电抗器主体 4 一储油柜 6—油箱 7—铁心 8—线圈 9一铁心饼 10—铁心 柱 11一第一线圈 12—第二线圈 具体实施方式
以下结合实施例和附图， 对本发明作进一步详细描述。
下面实施例为本发明的非限定性实施例。
如图 1、 2所示， 铁心电抗器包括电抗器主体 3、 储油柜 4。 电 抗器主体 3包括电抗器器身， 所述电抗器器身包括两个单独的器身， 两器身组成双器身结构， 两器身通过其内部的线圈连接在一起。两器 身都置于电抗器油箱 6内， 油箱 6与储油柜 4连通。 如图 3 7所示， 本发明电抗器双器身结构中， 每个器身包括一 个日字形铁心 7和线圈 8， 每个日字形铁 中间是多个带有中心孔的 铁心饼 9和多个气隙交叠成的铁心柱 10， 铁心柱 10由穿过中心孔的 多个拉螺杆上下拉紧， 上、 下和两边是由一定厚度的铁心叠积而成， 由穿心螺杆夹紧， 线圈 8套装在铁心柱 10上。
两器身的排列方式可采用平行排列 （如图 3、 4所示） 或一字形 排列 （如图 5、 6所示） 。
两器身中线圈 8的连接方式为串联或并联。
图 8所示为串联连接方式， 第一线圈 11与第二线圈 12采用中 部进线串联的方式连接， 即第一线圈 11采用在线圈的中部进线， 其 端部出线并且并联， 第二线圈 12采用在线圈的中部进线， 其端部出 线并且并联， 第一线圈 11端部并联后与第二线圈 12的中部串联。
图 9所示为并联连接方式， 第一线圈 11与第二线圈 12采用中 部进线并联方式连接，并联联接在一起是第一器身中的线圈即第一线 圈 11与第二器身中的线圈即第二线圈 12都采用中部进线，并且中部 进线端并联连接，两线圈的上下两端端部并联在一起后再并联作为出 线端，即第一线圈采用在线圈的中部进线，其上下端部出线并且并联， 第二线圈采用在线圈的中部进线， 其上下端部出线并且并联， 第一线 圈与第二线圈两线圈的中部进线端并联，第一线圈两端部与第二线圈 的两端部并联联接作为出线端。
上述两种连接方式适用于大容量、 高电压的电抗器产品， 能确 保电抗器具有良好的散热性能， 并且绝缘性能可靠。

Claims

权 利 要 求 书
1. 一种电抗器的双器身结构， 包括电抗器器身， 其特征在于所 述电抗器器身包括两个单独的器身， 两器身通过其内部的线圈 （8 ) 联接在一起。
2. 根据权利要求 1所述的电抗器的双器身结构， 其特征在于两 器身的排列方式为平行排列或呈一字形排列。
3. 根据权利要求 2所述的电抗器的双器身结构， 其特征在于所 述电抗器两器身都置于同一电抗器油箱 （6 ) 内。
4. 根据权利要求 3所述的电抗器的双器身结构， 其特征在于两 器身各包括一个日字形铁心 （7 ) ， 日字形铁心中部为多个带有中心 孔的铁心饼 （9 ) 和多个气隙交叠而成的铁心柱 （10 ) 。
5. 根据权利要求 1一 4之一所述的电抗器的双器身结构， 其特 征在于两器身内部的线圈 （8 ) 联接在一起可以通过串联联接， 也可 以通过并联联接。
6. 根据权利要求 5所述的电抗器的双器身结构， 其特征在于两 器身内部的线圈通过串联联接在一起可以是第一器身中的线圈即第 一线圈的一端为进线端，第一线圈的另一端与第二器身中的线圈即第 二线圈的一端连接， 第二线圈的另一端为出线端， 形成串联联接； 串 联也可以是第一线圈（11 )与第二线圈（12 )采用中部进线串联连接， 即第一线圈 （11 )采用在线圈的中间部位进线， 其两端部出线并且并 联后作为第二线圈 （12 ) 的进线， 第二线圈采用在线圈的中部进线， 其两端部并联后出线，第一线圈两端部并联后与第二线圈的中部进线 串联。
7. 根据权利要求 5所述的电抗器的双器身结构， 其特征在于两 器身内部的线圈琅过并联联接在一起可以是两器身的两线圈的一端 作为进线端并联在一起作进线端，两线圈的另一端作为出线端并联在 一起作出线端；并联联接在一起也可以是第一器身中的线圈即第一线 圈 （11 ) 与第二器身中的线圈即第二线圈 （12 ) 都采用中部进线， 并 且中部进线端并联连接，两线圈的上下两端并联在一起后再并联作为 出线端， 即第一线圈 （11 ) 采用在线圈的中部进线， 其上下端部出线 并且并联， 第二线圈 （12 ) 采用在线圈的中部进线， 其上下端部出线 并且并联， 第一线圈与第二线圈两线圈的中部进线端并联， 第一线圈 两端部与第二线圈的两端部并联联接作为出线端。
PCT/CN2008/001229 2007-08-20 2008-06-26 Double active parts structure of reactor Ceased WO2009024009A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2697050A CA2697050C (en) 2007-08-20 2008-06-26 Double active parts structure of reactor
EP08772985.1A EP2187409B1 (en) 2007-08-20 2008-06-26 Double active parts structure of reactor
BRPI0814921-6A BRPI0814921B1 (pt) 2007-08-20 2008-06-26 estrutura de duas partes ativas do reator
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CN102420040A (zh) * 2011-12-06 2012-04-18 保定天威集团有限公司 一种单油箱双器身并联电抗器
CN104124036B (zh) * 2014-06-26 2016-08-17 株洲南车机电科技有限公司 磁耦合电抗器

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BRPI0814921B1 (pt) 2021-02-02
CN101373656A (zh) 2009-02-25
CA2697050C (en) 2013-11-26
CA2697050A1 (en) 2009-02-26
EP2187409B1 (en) 2018-09-05
US8203412B2 (en) 2012-06-19
RU2455718C2 (ru) 2012-07-10
EP2187409A1 (en) 2010-05-19
US20110148557A1 (en) 2011-06-23
EP2187409A4 (en) 2012-07-18

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