CN111243823A - A kind of anti-crawling pancake coil insulation support frame - Google Patents
A kind of anti-crawling pancake coil insulation support frame Download PDFInfo
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- CN111243823A CN111243823A CN202010208264.1A CN202010208264A CN111243823A CN 111243823 A CN111243823 A CN 111243823A CN 202010208264 A CN202010208264 A CN 202010208264A CN 111243823 A CN111243823 A CN 111243823A
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- creepage
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- 238000009413 insulation Methods 0.000 title claims abstract description 7
- 235000012771 pancakes Nutrition 0.000 title claims description 8
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F2006/001—Constructive details of inductive current limiters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/023—Current limitation using superconducting elements
-
- 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
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Superconductive Dynamoelectric Machines (AREA)
Abstract
本发明涉及一种防爬电的饼式线圈绝缘支撑架，包括由绝缘材料制成的底座，在底座两侧上沿底座长度方向上间隔设置多个凸台，两侧上的凸台数量相等且沿着底座的横向一一对应，横向上两个凸台之间形成支撑超导带材的平台，纵向上两个凸台之间开设贯通底座整个横向长度的凹槽。本发明的结构整体呈波浪形，可以减小弯曲半径，主要用于饼式电阻型超导限流器，起绝缘和支撑的作用。一方面，间接性设凹槽可以增大与液氮的接触面积，改善换热；另一方面，波浪带两侧间隔设置凸台，既可以固定超导带，又可以防止爬电。
The invention relates to an anti-creepage-type coil insulating support frame, comprising a base made of insulating material, a plurality of bosses are arranged at intervals along the length direction of the base on both sides of the base, and the number of the bosses on both sides is equal And along the lateral direction of the base, there is a one-to-one correspondence, a platform for supporting the superconducting tape is formed between two bosses in the lateral direction, and a groove running through the entire lateral length of the base is formed between the two bosses in the longitudinal direction. The overall structure of the invention is wave-shaped, which can reduce the bending radius, and is mainly used for the cake-type resistance type superconducting current limiter, which plays the role of insulation and support. On the one hand, the indirect grooves can increase the contact area with liquid nitrogen and improve the heat exchange; on the other hand, the two sides of the wave belt are spaced with bosses, which can not only fix the superconducting belt, but also prevent creepage.
Description
技术领域technical field
本发明涉及一种防爬电的饼式线圈绝缘支撑架，属于超导限流器的技术领域。The invention relates to an anti-creepage-type coil insulating support frame, belonging to the technical field of superconducting current limiters.
背景技术Background technique
从二十世纪初，人们发现低温超导现象以来，就试图将超导用于工程领域。为了发展超导设备，如超导电缆，超导限流器、超导储能设备，超导发电机，超导变压器等。其中超导限流器作为一种有效的短路电流限制装置，在发生短路故障时，能够迅速将短路电流限制到可接受的水平，从而避免电网中大的短路电流对电网和电气设备的安全稳定运行构成重大危害，可以大大提高电网的稳定性，改善供电的可靠性和安全性，且超导限流器在正常运行时对电网影响很小，超导限流器受到越来越多的关注。Since the discovery of low-temperature superconductivity in the early 20th century, attempts have been made to use superconductivity in engineering. In order to develop superconducting equipment, such as superconducting cables, superconducting current limiters, superconducting energy storage devices, superconducting generators, superconducting transformers, etc. Among them, the superconducting current limiter, as an effective short-circuit current limiting device, can quickly limit the short-circuit current to an acceptable level when a short-circuit fault occurs, thereby avoiding the safety and stability of the power grid and electrical equipment due to the large short-circuit current in the power grid. Operation constitutes a major hazard, which can greatly improve the stability of the power grid, improve the reliability and safety of power supply, and the superconducting current limiter has little impact on the power grid during normal operation, so the superconducting current limiter has received more and more attention. .
超导限流器包括电阻型超导限流器、饱和铁心型超导限流器、桥路型超导限流器、磁屏蔽型超导限流器等。电阻型超导限流器在正常运行时零阻抗，故障时转变为高阻抗态限制故障电流。电阻型限流器原理简单，结构简单，在交流和直流系统中都可以有效地限制故障电流。饼式线圈结构作为电阻型限流器的主要结构之一，其绝缘支撑架起到绝缘作用之外，还可以改善线圈的换热。但在冲击时，线圈可能会发生爬电现象，由此设计一种防爬电的饼式线圈的绝缘支撑架十分有意义。Superconducting current limiters include resistance type superconducting current limiters, saturated core type superconducting current limiters, bridge type superconducting current limiters, magnetic shielding type superconducting current limiters, etc. The resistive superconducting current limiter has zero impedance during normal operation, and turns into a high impedance state to limit the fault current during fault. The resistive current limiter is simple in principle and simple in structure, and can effectively limit the fault current in both AC and DC systems. The pancake coil structure is one of the main structures of the resistive current limiter, and its insulating support frame can improve the heat exchange of the coil in addition to the insulating function. However, when the coil is impacted, the creepage phenomenon may occur, so it is very meaningful to design an insulating support frame for the anti-creepage pancake coil.
发明内容SUMMARY OF THE INVENTION
为了解决现有技术中存在的上述问题，本发明提供了一种防爬电的饼式线圈绝缘支撑架，本发明的技术方案如下：In order to solve the above-mentioned problems existing in the prior art, the present invention provides a kind of anti-creepage pie coil insulating support frame, and the technical scheme of the present invention is as follows:
一种防爬电的饼式线圈绝缘支撑架，包括由绝缘材料制成的底座，在底座两侧上沿底座长度方向上间隔设置多个凸台，两侧上的凸台数量相等且沿着底座的横向一一对应，横向上两个凸台之间形成支撑超导带材的平台，纵向上两个凸台之间开设贯通底座整个横向长度的凹槽。An anti-crawling pancake coil insulating support frame includes a base made of insulating material, a plurality of bosses are arranged at intervals along the length direction of the base on both sides of the base, and the number of bosses on both sides is equal and along the length of the base. The lateral directions of the base are in one-to-one correspondence, a platform for supporting the superconducting tape is formed between two bosses in the lateral direction, and a groove running through the entire lateral length of the base is formed between the two bosses in the longitudinal direction.
优选地，所述底座的材料为聚四氟乙烯。Preferably, the material of the base is polytetrafluoroethylene.
优选地，所述底座为长方体。Preferably, the base is a rectangular parallelepiped.
优选地，所述凸台形状为梯形。Preferably, the shape of the boss is trapezoid.
优选地，所述凹槽形状为长方形。Preferably, the shape of the groove is a rectangle.
优选地，所述底座与凸台一体成型。Preferably, the base and the boss are integrally formed.
优选地，底座长度方向上的凸台之间的间隔相等。Preferably, the intervals between the bosses in the length direction of the base are equal.
本发明的结构整体呈波浪形，可以减小弯曲半径，主要用于饼式电阻型超导限流器，起绝缘和支撑的作用。一方面，间接性设凹槽可以增大与液氮的接触面积，改善换热；另一方面，波浪带两侧间隔设置凸台，既可以固定超导带，又可以防止爬电。The overall structure of the invention is wave-shaped, which can reduce the bending radius, and is mainly used for the cake-type resistance type superconducting current limiter, which plays the role of insulation and support. On the one hand, the indirect grooves can increase the contact area with liquid nitrogen and improve the heat exchange; on the other hand, the two sides of the wave belt are spaced with bosses, which can not only fix the superconducting belt, but also prevent creepage.
附图说明Description of drawings
为了更容易理解本发明的技术方案和有益的技术效果，通过参照在附图中示出的本发明的具体实施方式来对本发明进行详细的描述。该附图仅绘出了本发明的典型实施方式，并不构成对本发明的保护范围的限制，其中：In order to more easily understand the technical solutions and beneficial technical effects of the present invention, the present invention will be described in detail by referring to the specific embodiments of the present invention shown in the accompanying drawings. The accompanying drawings only depict typical embodiments of the present invention, and do not limit the scope of protection of the present invention, wherein:
图1为根据本发明的一种防爬电的饼式线圈绝缘支撑架的一个实施方式的透视图。FIG. 1 is a perspective view of one embodiment of a creepage-resistant pie coil insulating support frame according to the present invention.
图2为图1中的实施方式用于饼式线圈放置超导带材后绝缘支撑架透视图。FIG. 2 is a perspective view of an insulating support frame after the embodiment of FIG. 1 is used for placing superconducting tapes in a pie coil.
具体实施方式Detailed ways
下面将结合附图1-2对本发明作进一步的详细说明。The present invention will be further described in detail below in conjunction with accompanying drawings 1-2.
如图1和2所示，分别为根据本发明的一种防爬电的饼式线圈绝缘支撑架的一个实施方式的透视图和图1中的实施方式用于饼式线圈放置超导带材后绝缘支撑架透视图。该防爬电的饼式线圈绝缘支撑架，包括由绝缘材料制成的底座1，在底座1两侧上沿底座长度方向上间隔设置多个梯形凸台2，两侧上的梯形凸台数量相等且沿着底座1的横向一一对应，横向上两个梯形凸台之间形成支撑超导带材4的平台，纵向上两个梯形凸台之间开设贯通底座整个横向长度的凹槽3，底座长度方向上的梯形凸台2之间的间隔相等。As shown in FIGS. 1 and 2, a perspective view of an embodiment of a creepage-resistant pie coil insulating support frame according to the present invention and the embodiment in FIG. 1 are respectively used for pie coil placement of superconducting tapes Perspective view of the rear insulating support frame. The anti-creepage-type coil insulating support frame includes a
该支撑架可以设置不同形状的凸台2和不同形状的凹槽3，用来改善换热和增加爬电距离。该装置是一体的，全部由绝缘材料制作，例如聚四氟乙烯。该装置可以起到绝缘和支撑的作用，为超导限流器的防爬电和失超恢复起到有利作用。The support frame can be provided with
梯形凸台2用来固定超导带材，起到防爬电的作用。凹槽3上方为液氮和超导带材，增加液氮和超导带材的接触面积。The
通过梯形凸台2固定超导带材4，得到饼式线圈的基本结构，通过绕线机将带材和绝缘支撑架绕在饼盘上，得到饼式线圈，最终通过串联得到饼式超导限流器。The superconducting strip 4 is fixed by the
本发明为波浪形结构，将超导带材4放置凹槽3中，两侧多了梯形凸台2，可以固定超导带材4，同时增加爬电距离，有效防止爬电。凹槽3采取间隔设置，可以增加超导带材4与液氮的接触面积，改善换热。The present invention has a wave-shaped structure, the superconducting strip 4 is placed in the
本发明所述的防爬电的饼式线圈的绝缘支撑架底座为长方体，上面有凹槽和梯形凸台。凹槽和凸台可以为不同形状，此处分别以长方形和梯形为例。整个防爬电的饼式线圈的绝缘支撑架浸泡在液氮中，槽中充满液氮，梯形凸台中间放置超导带材。The base of the insulating support frame of the anti-creepage pancake coil of the present invention is a rectangular parallelepiped with grooves and trapezoidal bosses on it. The grooves and the bosses can be of different shapes, and here a rectangle and a trapezoid are taken as examples. The insulating support frame of the whole anti-creepage pancake coil is immersed in liquid nitrogen, the tank is filled with liquid nitrogen, and the superconducting tape is placed in the middle of the trapezoidal boss.
本发明可以以其他具体的形式进行体现，但并不会脱离本发明的保护范围，本发明的保护范围仅由所附的权利要求限定。The present invention may be embodied in other specific forms without departing from the protection scope of the present invention, which is only limited by the appended claims.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202352506U (en) * | 2011-11-28 | 2012-07-25 | 成都科星电力电器有限公司 | Zero sequence current mutual inductor |
| CN103117145A (en) * | 2013-03-12 | 2013-05-22 | 中国科学院电工研究所 | Insulation and cooling spacing layer of high temperature superconducting non-inductive coil |
| CN204441076U (en) * | 2015-04-14 | 2015-07-01 | 山东电力设备有限公司 | A kind of superconducting transformer coil filler strip |
| CN205016350U (en) * | 2015-09-18 | 2016-02-03 | Abb技术有限公司 | Coil support frame |
| JP6005386B2 (en) * | 2012-04-09 | 2016-10-12 | 中部電力株式会社 | Superconducting coil device and manufacturing method thereof |
| CN206961660U (en) * | 2017-04-01 | 2018-02-02 | 许昌中衡电气有限公司 | A kind of porcelain shell for voltage mutual inductor |
-
2020
- 2020-03-23 CN CN202010208264.1A patent/CN111243823A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202352506U (en) * | 2011-11-28 | 2012-07-25 | 成都科星电力电器有限公司 | Zero sequence current mutual inductor |
| JP6005386B2 (en) * | 2012-04-09 | 2016-10-12 | 中部電力株式会社 | Superconducting coil device and manufacturing method thereof |
| CN103117145A (en) * | 2013-03-12 | 2013-05-22 | 中国科学院电工研究所 | Insulation and cooling spacing layer of high temperature superconducting non-inductive coil |
| CN204441076U (en) * | 2015-04-14 | 2015-07-01 | 山东电力设备有限公司 | A kind of superconducting transformer coil filler strip |
| CN205016350U (en) * | 2015-09-18 | 2016-02-03 | Abb技术有限公司 | Coil support frame |
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