CN110838765A - Stator cooling system of synchronous phase modulator - Google Patents
Stator cooling system of synchronous phase modulator Download PDFInfo
- Publication number
- 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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- China
- Prior art keywords
- stator
- cooling system
- flat copper
- rotor
- collecting pipe
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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
The application discloses a stator cooling system of a synchronous phase modulator, which comprises a water cooling system and an air cooling system, wherein the water cooling system and the air cooling system are arranged on a stator and a rotor; the water cooling system comprises a stator shell, a stator core and a stator winding; the stator shell is coated outside the stator core; the stator core is wedge-shaped, a rectangular groove is formed in the small end of the wedge-shaped, a stator winding is installed in the rectangular groove, and vent grooves are formed in the two side faces of the wedge-shaped; 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 with a total water inlet collecting pipe, the other end of the hollow flat copper wire is connected with a total water outlet collecting pipe, the other end of the total water inlet collecting pipe is connected with a water box, and cooling water of the water box enters from the total water inlet collecting pipe and flows out from the total water outlet collecting pipe; the air cooling system comprises a rotor with fans arranged at two ends, an air gap is formed between the rotor and the stator, the fans at the two ends rotate along with the rotor, and air enters the space between the stator and the rotor through the air gap. The problem of current large-scale synchronous phase modulation machine stator radiating effect poor is solved.
Description
Technical Field
The invention belongs to the technical field of heat dissipation of large-scale motor bodies, and relates to a stator cooling system of a synchronous phase modulator.
Background
The synchronous phase modulator is taken as the traditional reactive compensation equipment of the power system, and is replaced by power electronic equipment such as SVC, SVG and the like for a long time due to the defects of more complex operation and maintenance, larger active power loss, large operation noise and the like, and the development is slow. However, in recent years, with the rapid development of new active access power grids and high-voltage direct-current transmission, the synchronous phase modulators are paid more attention again.
However, the synchronous phase modulator is easy to generate heat during operation, and especially the stator core generates heat more seriously, so a heat dissipation method is needed to effectively dissipate heat of the synchronous phase modulator so that the synchronous phase modulator can work in a temperature state.
Disclosure of Invention
In order to solve the deficiencies in the prior art, the present application provides a synchronous phase modulator stator cooling system.
In order to achieve the above objective, the following technical solutions are adopted in the present application:
a stator cooling system of a synchronous phase modulator comprises a water cooling system and an air cooling system which are arranged on a stator and a rotor;
the water cooling system comprises a stator shell, a stator core and a stator winding; the stator shell is coated outside the stator core; the stator core is wedge-shaped, a rectangular groove is formed in the small end of the wedge-shaped, a stator winding is installed in the rectangular groove, and vent grooves are formed in the two side faces of the wedge-shaped; 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 with a total water inlet collecting pipe, the other end of the hollow flat copper wire is connected with a total water outlet collecting pipe, the other end of the total water inlet collecting pipe is connected with a water box, and cooling water of the water box enters from the total water inlet collecting pipe and flows out from the total water outlet collecting pipe;
the air cooling system comprises a rotor with fans arranged at two ends, an air gap is formed between the rotor and the stator, the fans at the two ends rotate along with the rotor, and air enters the space between the stator and the rotor through the air gap.
The invention further comprises the following preferred embodiments:
preferably, the stator winding is arranged in a rectangular slot of the stator core, the stator winding comprises a gasket arranged at the top of the stator winding and at least two groups of stator coils symmetrically arranged, and the stator coils comprise a plurality of solid flat copper wires and hollow flat copper wires.
Preferably, the solid flat copper wire and the hollow flat copper wire are insulated and separated by a winding.
Preferably, the stator winding and the stator core are isolated by interlayer insulation.
Preferably, the adjacent stator windings are separated by an interlayer filler strip.
Preferably, the ports on two sides of the vent groove are opposite to the air inlet area, and the radial air inlet and the radial air outlet are communicated with the vent groove.
Preferably, a cooler is arranged in the stator core and used for enhancing the heat dissipation effect of the air cooling system.
Preferably, the radial air inlets and the radial air outlets are circumferentially arranged on the outer side of the stator core at intervals.
The beneficial effect that this application reached:
this application radial ventilation system's of multichannel design can effectively shorten the wind path length of stator, reduces stator winding and stator core along axial temperature distribution's inhomogeneity, reduces the high point temperature, improves stator winding and stator core insulating life-span.
Drawings
Fig. 1 is a schematic diagram of the stator winding of a synchronous phase modulator stator cooling system of the present application.
Fig. 2 is a schematic diagram of a stator structure of a stator cooling system of a synchronous phase modulator according to the present application.
Fig. 3 is a schematic view showing the air flow movement during the operation of the air cooling system of the stator cooling system of the synchronous phase modulator of the present application.
FIG. 4 is a phase modifier water system water cooling system assembly body structure of this application
Wherein: 1-gasket, 2-solid flat copper wire, 3-winding insulation, 4-interlayer insulation, 5-interlayer filler strip, 6-hollow flat copper wire, 7-rectangular groove, 8-stator winding, 9-stator iron core, 10-ventilation groove, 11-radial air inlet, 12-radial air outlet, 13-rotor, 14-fan, 15-air gap, 16-stator shell, 17-cooler, 18-total water inlet collecting pipe, 19-water box, 20-total water outlet collecting pipe and 21-stator.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
A stator cooling system of a synchronous phase modulator comprises a water cooling system and an air cooling system which are arranged on a stator 21 and a rotor 13;
as shown in fig. 1 and 2, the water cooling system includes a stator housing 16, a stator core 9, and a stator winding 8; the stator shell 16 is coated outside the stator core 9; the stator iron core 9 is wedge-shaped, a rectangular groove 7 is formed in the small end of the wedge-shaped, a stator winding 8 is installed in the rectangular groove 7, and vent grooves 10 are formed in the two side faces of the wedge-shaped; the stator winding 8 is wound with a solid flat copper wire 2 and a hollow flat copper wire 6; as shown in fig. 4, one end of the hollow flat copper wire 6 is connected with a total water inlet collecting pipe 18, the other end of the hollow flat copper wire 6 is connected with a total water outlet collecting pipe 20, the other end of the total water inlet collecting pipe 18 is connected with a water box 19, and cooling water of the water box 19 enters from the total water inlet collecting pipe 18 and flows out from the total water outlet collecting pipe 20;
as shown in fig. 3, the air cooling system includes a rotor 13 having fans 14 mounted at both ends thereof, an air gap 15 is formed between the rotor 13 and a stator 21, the fans 14 at both ends rotate together with the rotor 13, and air enters between the stator 21 and the rotor 13 through the air gap 15. Cooling gas is driven into the stator core 9 from one end by a fan 14, flows from the inner side of the stator core 9 to the outer side of the stator core 9 through a radial ventilation channel of the stator core 9 through an air gap 15, and cools a stator core 9 body and a step section; and the other path bypasses the end part of a stator coil at a wire outlet end to cool a stator wire outlet copper bar and a sleeve and then flows into the stator shell 16, and the two paths of gas enter the air cooler 17 from the air outlet area of the engine base, so that the cooling of the phase-change machine is realized.
In an embodiment, the stator winding 8 is disposed in the rectangular slot 7 of the stator core 9, the stator winding 8 includes a spacer 1 disposed on the top of the stator winding 8 and at least two sets of the stator coils symmetrically disposed, and the stator coils include a plurality of the solid flat copper wires 2 and the hollow flat copper wires 6.
And the solid flat copper wire 2 and the hollow flat copper wire 6 are separated by a winding insulation 3.
The stator winding 8 and the stator core 9 are separated by interlayer insulation 4.
And the coils of the adjacent stator windings 8 are separated by interlayer filler strips 5.
The ports on two sides of the vent groove 10 are opposite to the air inlet area, and the radial air inlet and the radial air outlet are communicated with the vent groove 10.
And a cooler 17 is arranged in the stator iron core 9 and used for enhancing the heat dissipation effect of the air cooling system.
The radial air inlets and the radial air outlets are circumferentially arranged on the outer side of the stator core 9 at intervals.
This application is according to 300MW phase modifier body structure, and the temperature control of rotor is decided to the design phase modifier stator cooling system, realizes the phase modifier, and this system does not adopt the hydrogen cooling, and air cooling system and water cooling system are different from other cooling system, and this system can the effective control motor stator temperature.
The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.
Claims (8)
1. A stator cooling system of a synchronous phase modulator is characterized by comprising a water cooling system and an air cooling system which are arranged on a stator (21) and a rotor (13);
the water cooling system comprises a stator shell (16), a stator iron core (9) and a stator winding (8); the stator shell (16) is coated outside the stator core (9); the stator iron core (9) is wedge-shaped, a rectangular groove (7) is formed in the small end of the wedge-shaped, a stator winding (8) is installed in the rectangular groove (7), and vent grooves (10) are formed in the two side faces of the wedge-shaped; the stator winding (8) is wound with a solid flat copper wire (2) and a hollow flat copper wire (6); one end of the hollow flat copper wire (6) is connected with the total water inlet collecting pipe (18), the other end of the hollow flat copper wire (6) is connected with the total water outlet collecting pipe (20), the other end of the total water inlet collecting pipe (18) is connected with the water box (19), and cooling water of the water box (19) enters from the total water inlet collecting pipe (18) and flows out from the total water outlet collecting pipe (20);
the air cooling system comprises a rotor (13) with fans (14) arranged at two ends, an air gap (15) is formed between the rotor (13) and a stator (21), the fans (14) at the two ends rotate along with the rotor (13), and air enters a space between the stator (21) and the rotor (13) through the air gap (15).
2. The stator cooling system of a synchronous phase modulator according to claim 1, wherein:
stator winding (8) are located in rectangular channel (7) of stator core (9), stator winding (8) are including locating gasket (1) and at least two sets of symmetry setting at stator winding (8) top stator coil, stator coil includes a plurality of solid flat copper line (2) and hollow flat copper line (6).
3. The stator cooling system of a synchronous phase modulator according to claim 2, wherein:
the solid flat copper wire (2) and the hollow flat copper wire (6) are separated by winding insulation (3).
4. The stator cooling system of a synchronous phase modulator according to claim 2, wherein:
the stator winding (8) and the stator iron core (9) are separated through interlayer insulation (4).
5. The stator cooling system of a synchronous phase modulator according to claim 2, wherein:
and the coils of the adjacent stator windings (8) are separated by interlayer filler strips (5).
6. The stator cooling system of a synchronous phase modulator according to claim 1, wherein:
the radial air inlet (11) and the radial air outlet (12) are communicated with the vent groove (10).
7. The stator cooling system of a synchronous phase modulator according to claim 1, wherein:
and a cooler (17) is arranged in the stator iron core (9) and is used for enhancing the heat dissipation effect of the air cooling system.
8. The stator cooling system of a synchronous phase modulator according to claim 1, wherein:
the radial air inlets and the radial air outlets are circumferentially arranged on the outer side of the stator core (9) at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187759.4A CN110838765A (en) | 2019-11-28 | 2019-11-28 | Stator cooling system of synchronous phase modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187759.4A CN110838765A (en) | 2019-11-28 | 2019-11-28 | Stator cooling system of synchronous phase modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110838765A true CN110838765A (en) | 2020-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911187759.4A Pending CN110838765A (en) | 2019-11-28 | 2019-11-28 | Stator cooling system of synchronous phase modulator |
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| CN (1) | CN110838765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2695368A (en) * | 1953-01-27 | 1954-11-23 | Gen Electric | Dynamoelectric machine stator winding with fluid-cooling passages in conductor bars |
| GB751256A (en) * | 1953-03-20 | 1956-06-27 | Siemens Ag | Improvements in or relating to the cooling of high voltage electric machines |
| GB886315A (en) * | 1957-05-03 | 1962-01-03 | Ass Elect Ind | Improvements relating to electrical turbo generators |
| GB1031786A (en) * | 1962-05-18 | 1966-06-02 | Alsthom Cgee | Improvements in the cooling of dynamo-electric machine windings |
| US4264834A (en) * | 1976-06-01 | 1981-04-28 | General Electric Company | Flexible serrated abradable stator mounted air gap baffle for a dynamoelectric machine |
| CN201717736U (en) * | 2010-07-22 | 2011-01-19 | 哈尔滨理工大学 | Large air-cooling turbogenerator with circumferential mixed ventilation cooling structure |
| CN102396138A (en) * | 2009-02-13 | 2012-03-28 | Isis创新有限公司 | Electric machine - flux |
| CN108233626A (en) * | 2018-01-09 | 2018-06-29 | 河海大学 | Cooling-fan installation inside a kind of large synchronous compensator |
| CN108923589A (en) * | 2018-07-26 | 2018-11-30 | 国网江苏省电力有限公司检修分公司 | A kind of large synchronous compensator inside cooling-fan installation of the complete air-cooled type of cooling |
-
2019
- 2019-11-28 CN CN201911187759.4A patent/CN110838765A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2695368A (en) * | 1953-01-27 | 1954-11-23 | Gen Electric | Dynamoelectric machine stator winding with fluid-cooling passages in conductor bars |
| GB751256A (en) * | 1953-03-20 | 1956-06-27 | Siemens Ag | Improvements in or relating to the cooling of high voltage electric machines |
| GB886315A (en) * | 1957-05-03 | 1962-01-03 | Ass Elect Ind | Improvements relating to electrical turbo generators |
| GB1031786A (en) * | 1962-05-18 | 1966-06-02 | Alsthom Cgee | Improvements in the cooling of dynamo-electric machine windings |
| US4264834A (en) * | 1976-06-01 | 1981-04-28 | General Electric Company | Flexible serrated abradable stator mounted air gap baffle for a dynamoelectric machine |
| CN102396138A (en) * | 2009-02-13 | 2012-03-28 | Isis创新有限公司 | Electric machine - flux |
| CN201717736U (en) * | 2010-07-22 | 2011-01-19 | 哈尔滨理工大学 | Large air-cooling turbogenerator with circumferential mixed ventilation cooling structure |
| CN108233626A (en) * | 2018-01-09 | 2018-06-29 | 河海大学 | Cooling-fan installation inside a kind of large synchronous compensator |
| CN108923589A (en) * | 2018-07-26 | 2018-11-30 | 国网江苏省电力有限公司检修分公司 | A kind of large synchronous compensator inside cooling-fan installation of the complete air-cooled type of cooling |
Cited By (3)
| 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 | Loss reducing device and method for synchronous camera |
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Application publication date: 20200225 |