CN110838765A - Stator cooling system of synchronous phase modulator - Google Patents
Stator cooling system of synchronous phase modulator Download PDFInfo
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- CN110838765A CN110838765A CN201911187759.4A CN201911187759A CN110838765A CN 110838765 A CN110838765 A CN 110838765A CN 201911187759 A CN201911187759 A CN 201911187759A CN 110838765 A CN110838765 A CN 110838765A
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- 238000001816 cooling Methods 0.000 title claims abstract description 44
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000004804 winding Methods 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims abstract description 6
- 239000000498 cooling water Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
本申请公开了一种同步调相机定子冷却系统，包括设置在定子和转子上的水冷系统和风冷系统；水冷系统包括定子壳体、定子铁芯和定子绕组；所述定子壳体包覆在定子铁芯外；所述定子铁芯为契形，契形的小端设有矩形槽，矩形槽内安装定子绕组，契形的两侧面设有通气槽；所述定子绕组绕有实心扁铜线和空心扁铜线；空心扁铜线一端连接总进水汇流管，空心扁铜线另一端连接总出水汇流管，总进水汇流管的另一端接水盒，水盒的冷却水从总进水汇流管入，从总出水汇流管流出；风冷系统包括两端安装有风扇的转子，转子和定子间有气隙，两端风扇随转子一起转动，空气通过气隙进入定子与转子间。解决了现有大型同步调相机定子散热效果差的问题。
The present application discloses a synchronous condenser stator cooling system, including a water cooling system and an air cooling system arranged on the stator and the rotor; the water cooling system includes a stator casing, a stator iron core and a stator winding; the stator casing is wrapped in a Outside the stator core; the stator core is wedge-shaped, the small end of the wedge is provided with a rectangular slot, the stator winding is installed in the rectangular slot, and the two sides of the wedge are provided with ventilation slots; the stator winding is wound with solid flat copper Line and hollow flat copper wire; one end of the hollow flat copper wire is connected to the main water inlet manifold, the other end of the hollow flat copper wire is connected to the main water outlet manifold, the other end of the main water inlet manifold is connected to the water box, and the cooling water of the water box flows from the main The water inlet manifold enters and flows out from the main outlet manifold; the air cooling system includes a rotor with fans installed at both ends, and there is an air gap between the rotor and the stator. The fans at both ends rotate with the rotor, and the air enters between the stator and the rotor through the air gap. . The problem of poor heat dissipation effect of the stator of the existing large-scale synchronous modulator is solved.
Description
技术领域technical field
本发明属于大型电机本体散热技术领域，涉及一种同步调相机定子冷却系统。The invention belongs to the technical field of heat dissipation of large motor bodies, and relates to a synchronous modulator stator cooling system.
背景技术Background technique
同步调相机作为电力系统传统的无功补偿设备，因其运行维护较复杂，有功功率损耗较大、运行噪声大等缺点，长期以来被SVC、SVG等电力电子设备所替代，其发展缓慢。但是近年来，随着新有源接入电网以及高压直流输电的快速发展，同步调相机又重新引起重视。As a traditional reactive power compensation device in power system, synchronous camera has been replaced by SVC, SVG and other power electronic devices for a long time due to its complex operation and maintenance, large active power loss and large operating noise, and its development is slow. However, in recent years, with the rapid development of new active access to the power grid and high-voltage direct current transmission, synchronous modulators have attracted renewed attention.
然而同步调相机在运作时容易发热，尤其是定子铁芯处发热更加严重，因此需要一种散热方式对同步调相机进行有效的散热使其能够工作在温度状态。However, the synchronous camera is easy to generate heat during operation, especially the stator iron core generates more serious heat. Therefore, a heat dissipation method is needed to effectively dissipate the heat of the synchronous camera so that it can work in a temperature state.
发明内容SUMMARY OF THE INVENTION
为解决现有技术中的不足，本申请提供一种同步调相机定子冷却系统。In order to solve the deficiencies in the prior art, the present application provides a synchronous modulator stator cooling system.
为了实现上述目标，本申请采用如下技术方案：In order to achieve the above goals, the application adopts the following technical solutions:
一种同步调相机定子冷却系统，包括设置在定子和转子上的水冷系统和风冷系统；A synchronous condenser stator cooling system, comprising a water cooling system and an air cooling system arranged on the stator and the rotor;
所述水冷系统包括定子壳体、定子铁芯和定子绕组；所述定子壳体包覆在定子铁芯外；所述定子铁芯为契形，契形的小端设有矩形槽，矩形槽内安装定子绕组，契形的两侧面设有通气槽；所述定子绕组绕有实心扁铜线和空心扁铜线；空心扁铜线一端连接总进水汇流管，空心扁铜线另一端连接总出水汇流管，总进水汇流管的另一端接水盒，水盒的冷却水从总进水汇流管入，从总出水汇流管流出；The water cooling system includes a stator casing, a stator iron core and a stator winding; the stator casing is wrapped around the stator iron core; the stator iron core is a wedge shape, and the small end of the wedge shape is provided with a rectangular slot. The stator winding is installed inside, and the two sides of the wedge are provided with ventilation slots; the stator winding is wound with a solid flat copper wire and a hollow flat copper wire; one end of the hollow flat copper wire is connected to the general water inlet manifold, and the other end of the hollow flat copper wire is connected The other end of the main water inlet manifold is connected to the water box, and the cooling water of the water box enters from the main water inlet manifold and flows out from the main outlet manifold;
所述风冷系统包括两端安装有风扇的转子，转子和定子间有气隙，两端风扇随转子一起转动，空气通过气隙进入定子与转子间。The air cooling system includes a rotor with fans installed at both ends, an air gap exists between the rotor and the stator, the fans at both ends rotate together with the rotor, and air enters between the stator and the rotor through the air gap.
本发明进一步包括以下优选方案：The present invention further includes the following preferred solutions:
优选地，所述定子绕组设于所述定子铁芯的矩形槽中，所述定子绕组包括设于所述定子绕组顶部的垫片以及至少两组对称设置的所述定子线圈，所述定子线圈包括若干所述实心扁铜线和空心扁铜线。Preferably, the stator winding is arranged in a rectangular slot of the stator iron core, and the stator winding includes a spacer arranged on the top of the stator winding and at least two sets of symmetrically arranged stator coils. Including several solid flat copper wires and hollow flat copper wires.
优选地，所述实心扁铜线和所述空心扁铜线之间通过绕组绝缘隔断。Preferably, the solid flat copper wire and the hollow flat copper wire are separated by winding insulation.
优选地，所述定子绕组与所述定子铁芯之间通过层间绝缘隔断。Preferably, the stator winding and the stator iron core are separated by interlayer insulation.
优选地，所述相邻定子绕组之间通过层间垫条隔断。Preferably, the adjacent stator windings are separated by interlayer spacers.
优选地，所述通气槽两侧端口与所述进风区相对，所述径向进风口和所述径向出风口与所述通气槽连通。Preferably, the ports on both sides of the ventilation slot are opposite to the air inlet area, and the radial air inlet and the radial air outlet communicate with the ventilation slot.
优选地，所述定子铁芯内设有冷却器，用于加强风冷系统散热效果。Preferably, a cooler is arranged in the stator iron core to enhance the heat dissipation effect of the air cooling system.
优选地，所述径向进风口和所述径向出风口周向相间设于所述定子铁芯外侧。Preferably, the radial air inlet and the radial air outlet are circumferentially alternately arranged outside the stator core.
本申请所达到的有益效果：The beneficial effects achieved by this application:
本申请多路径向通风系统的设计，可以有效缩短定子的风路长度，降低定子绕组和定子铁芯沿轴向温度分布的不均匀性，降低高点温度，提高定子绕组与定子铁芯绝缘的寿命。The design of the multi-path directional ventilation system of the present application can effectively shorten the length of the air path of the stator, reduce the unevenness of the temperature distribution of the stator winding and the stator iron core along the axial direction, reduce the high point temperature, and improve the insulation between the stator winding and the stator iron core. life.
附图说明Description of drawings
图1为本申请一种同步调相机定子冷却系统的定子绕组示意图。FIG. 1 is a schematic diagram of a stator winding of a synchronous modulator stator cooling system of the present application.
图2为本申请一种同步调相机定子冷却系统的定子结构示意图。FIG. 2 is a schematic diagram of a stator structure of a synchronous modulator stator cooling system of the present application.
图3为本申请一种同步调相机定子冷却系统的风冷系统运行时气流运动示意图。FIG. 3 is a schematic diagram of airflow movement during operation of an air cooling system of a synchronous camera stator cooling system according to the present application.
图4为本申请的调相机水系统水冷系统装配体结构FIG. 4 is the structure of the water cooling system assembly structure of the camera water system of the application
其中：1-垫片，2-实心扁铜线，3-绕组绝缘，4-层间绝缘，5-层间垫条，6-空心扁铜线，7-矩形槽，8-定子绕组，9-定子铁芯，10-通气槽，11-径向进风口，12-径向出风口，13-转子，14-风扇，15-气隙，16-定子壳体，17-冷却器，18-总进水汇流管，19-水盒，20-总出水汇流管，21-定子。Among them: 1-gasket, 2-solid flat copper wire, 3-winding insulation, 4-interlayer insulation, 5-interlayer spacer, 6-hollow flat copper wire, 7-rectangular slot, 8-stator winding, 9 -stator core, 10-vent slots, 11-radial air inlet, 12-radial air outlet, 13-rotor, 14-fan, 15-air gap, 16-stator housing, 17-cooler, 18- Total inlet manifold, 19-water box, 20-total outlet manifold, 21-stator.
具体实施方式Detailed ways
下面结合附图对本申请作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本申请的保护范围。The present application will be further described below with reference to the accompanying drawings. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present application.
一种同步调相机定子冷却系统，包括设置在定子21和转子13上的水冷系统和风冷系统；A synchronous condenser stator cooling system, including a water cooling system and an air cooling system arranged on the stator 21 and the rotor 13;
如图1和图2所示，所述水冷系统包括定子壳体16、定子铁芯9和定子绕组8；所述定子壳体16包覆在定子铁芯9外；所述定子铁芯9为契形，契形的小端设有矩形槽7，矩形槽7内安装定子绕组8，契形的两侧面设有通气槽10；所述定子绕组8绕有实心扁铜线2和空心扁铜线6；如图4所示，空心扁铜线6一端连接总进水汇流管18，空心扁铜线6另一端连接总出水汇流管20，总进水汇流管18的另一端接水盒19，水盒19的冷却水从总进水汇流管18入，从总出水汇流管20流出；As shown in FIGS. 1 and 2 , the water cooling system includes a stator casing 16 , a
如图3所示，所述风冷系统包括两端安装有风扇14的转子13，转子13和定子21间有气隙15，两端风扇14随转子13一起转动，空气通过气隙15进入定子21与转子13间。冷却气体从一端由风扇14打入，通过气隙15，经定子铁芯9径向通风道从定子铁芯9内侧流向定子铁芯9外侧，冷却定子铁芯9本体及阶梯段；另一路绕过出线端定子线圈端部，冷却定子出线铜排和套管，然后流入定子壳体16，两路气体由机座出风区进入空气冷却器17，如此循环，实现对调相机的冷却。As shown in FIG. 3 , the air cooling system includes a rotor 13 with fans 14 installed at both ends, an air gap 15 is formed between the rotor 13 and the stator 21 , the fans 14 at both ends rotate together with the rotor 13 , and the air enters the stator through the air gap 15 21 and the rotor 13. The cooling gas is driven by the fan 14 from one end, passes through the air gap 15, and flows from the inner side of the
实施例中，所述定子绕组8设于所述定子铁芯9的矩形槽7中，所述定子绕组8包括设于所述定子绕组8顶部的垫片1以及至少两组对称设置的所述定子线圈，所述定子线圈包括若干所述实心扁铜线2和空心扁铜线6。In the embodiment, the stator winding 8 is arranged in the rectangular slot 7 of the
所述实心扁铜线2和所述空心扁铜线6之间通过绕组绝缘3隔断。The solid
所述定子绕组8与所述定子铁芯9之间通过层间绝缘4隔断。The stator winding 8 and the
所述相邻定子绕组8线圈之间通过层间垫条5隔断。The coils of the
所述通气槽10两侧端口与所述进风区相对，所述径向进风口和所述径向出风口与所述通气槽10连通。Ports on both sides of the
所述定子铁芯9内设有冷却器17，用于加强风冷系统散热效果。The
所述径向进风口和所述径向出风口周向相间设于所述定子铁芯9外侧。The radial air inlet and the radial air outlet are arranged on the outer side of the
本申请根据300MW调相机本体结构，设计调相机定子冷却系统，实现调相机定转子的温度控制，该系统不采用氢气冷却，空冷系统以及水冷系统有别于其他的冷却系统，该系统可以有效控制电机定子温度。According to the body structure of the 300MW inverter, this application designs the inverter stator cooling system to realize the temperature control of the inverter stator and rotor. The system does not use hydrogen cooling, and the air cooling system and water cooling system are different from other cooling systems. This system can effectively control Motor stator temperature.
本发明申请人结合说明书附图对本发明的实施示例做了详细的说明与描述，但是本领域技术人员应该理解，以上实施示例仅为本发明的优选实施方案，详尽的说明只是为了帮助读者更好地理解本发明精神，而并非对本发明保护范围的限制，相反，任何基于本发明的发明精神所作的任何改进或修饰都应当落在本发明的保护范围之内。The applicant of the present invention has described and described the embodiments of the present invention in detail with reference to the accompanying drawings, but those skilled in the art should understand that the above embodiments are only preferred embodiments of the present invention, and the detailed description is only to help readers better It should be understood that the spirit of the present invention is not limited to the protection scope of the present invention. On the contrary, any improvement or modification made based on the spirit of the present invention should fall within the protection scope of the present invention.
Claims (8)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118040939A (en) * | 2024-02-20 | 2024-05-14 | 国网青海省电力公司 | Loss reducing device and method for synchronous camera |
| WO2024207149A1 (en) * | 2023-04-03 | 2024-10-10 | 舍弗勒技术股份两合公司 | Stator assembly and motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024207149A1 (en) * | 2023-04-03 | 2024-10-10 | 舍弗勒技术股份两合公司 | Stator assembly and motor |
| CN118040939A (en) * | 2024-02-20 | 2024-05-14 | 国网青海省电力公司 | Loss reducing device and method for synchronous camera |
| CN118040939B (en) * | 2024-02-20 | 2024-07-09 | 国网青海省电力公司 | Synchronous phase condenser loss reduction device and method |
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Application publication date: 20200225 |
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