CN216241119U - Underlying frequency converter of wind turbine generator - Google Patents
Underlying frequency converter of wind turbine generator Download PDFInfo
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- CN216241119U CN216241119U CN202122908961.0U CN202122908961U CN216241119U CN 216241119 U CN216241119 U CN 216241119U CN 202122908961 U CN202122908961 U CN 202122908961U CN 216241119 U CN216241119 U CN 216241119U
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- frequency converter
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a lower frequency converter of a wind turbine generator, which relates to the technical field of frequency converters and comprises a platform, wherein a cable opening is formed in the platform, a first rectangular opening and a second rectangular opening are formed in the platform, the first rectangular opening is positioned on the left side of the second rectangular opening, a cable bridge is arranged on the right side of the second rectangular opening, a mounting hole is formed in the cable bridge, a cable is attached to the cable bridge and penetrates through the mounting hole; the parallel operation design technology of the original cabin double PM3000W frequency converters is changed into the single frequency converter module lower operation, so that the fault shutdown of the frequency converter caused by factors such as vibration, heating and the like, such as overtemperature, overcurrent and loose wiring of the frequency converter, damage to a control panel caused by carbon powder and the like when the frequency converter operates in the cabin is effectively reduced; the problem of unit failure caused by the asynchronism of devices in links such as pre-charging, grid connection and the like when the frequency converters are operated in parallel is solved; the tower footing is easy for operation and maintenance personnel to overhaul and maintain, and the defect eliminating time of equipment maintenance is greatly shortened.
Description
Technical Field
The utility model relates to the technical field of frequency converters, in particular to a lower frequency converter of a wind turbine generator.
Background
Because the operation life of the wind power plant is long, the operation working condition of the frequency converter in the cabin is poor, the used superconducting frequency converter technology is immature, the fault rate is high, and the superconducting frequency converter does not have a high-voltage ride-through function, so that the reliability and the power generation efficiency of the unit are gradually reduced. In order to deeply excavate the power generation potential of the stock wind field, the double improvement and transformation of reliability and power generation efficiency of the stock unit is imperative. Meanwhile, in order to meet the requirement of continuously improving the power grid, power grid adaptability transformation is carried out on stock units, and the reliability improvement of the units and the operation safety improvement of the power grid can be realized.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a lower frequency converter of a wind turbine generator, which has the characteristics of cost saving and convenience in maintenance.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a put converter under wind turbine generator system, includes the platform, be provided with the cable opening on the platform, be provided with first rectangle opening and second rectangle opening on the platform, first rectangle opening is located the rectangle open-ended left side of second, and the rectangle open-ended right side of second is provided with the cable testing bridge, has seted up in the mounting hole on the cable testing bridge, has adhered to the cable on the cable testing bridge, and the cable runs through the mounting hole, be provided with the rectangle frame on the platform, the place that corresponds the rectangle frame position on the platform is provided with the water-cooling protection casing, is provided with the water pump support on the platform, is provided with the water pump on the water pump support, and the upside of platform is provided with the column foot cabinet, assists and becomes and converter cabinet.
By adopting the technical scheme, after the electric loop is completed, the loop needs to be subjected to short circuit and grounding test, so that the short circuit is prevented. And after the correctness is confirmed, carrying out power-on operation.
Furthermore, one side of the cable bridge is provided with a hexagonal opening, and an electrical cabinet is arranged in the hexagonal opening.
Furthermore, a third rectangular opening is formed in one side of the cable bridge.
Further, the delivery port of water pump passes through the water inlet that converter cabinet intake rubber tube subassembly was connected with the converter cabinet, is provided with the converter in the converter cabinet, and the delivery port of converter cabinet passes through the surface intercommunication of converter cabinet play water rubber tube subassembly and water tank, and the water pump is provided with in the water tank, all is provided with the single pipe clamp on converter cabinet intake rubber tube subassembly and the converter cabinet play water rubber tube subassembly, the equal fixed mounting of converter cabinet and water tank is on the platform, be provided with total play water rubber tube subassembly of cooler and the total intake rubber tube subassembly of cooler between water tank and the converter cabinet.
In conclusion, the utility model has the following beneficial effects:
1. in the scheme, the parallel operation design technology of the double PM3000W frequency converters of the original engine room is changed into the operation of the single frequency converter module arranged below, so that the fault shutdown of the frequency converter caused by factors such as vibration, heating and the like, such as overtemperature, overcurrent and loose wiring of the frequency converter, damage to a control panel caused by carbon powder and the like when the frequency converter operates in the engine room is effectively reduced; the problem of unit failure caused by the asynchronism of devices in links such as pre-charging, grid connection and the like when the frequency converters are operated in parallel is solved; the down converter is designed into three independent modules, so that the whole converter can be prevented from being replaced when module faults occur, and the cost and labor are saved. The tower footing is designed to be easy for operation and maintenance personnel to carry out maintenance, so that the defect eliminating time of equipment maintenance is greatly shortened;
2. the scheme has qualified high voltage ride through capability: the high voltage ride through capability and the subsynchronous oscillation suppression capability of the unit are realized while the frequency converter and the master control system are transformed, so that a power grid-friendly wind power plant is created;
3. in the scheme, the original unit control strategy is replaced by an intelligent control strategy, the control capability of self-adaption and self-optimization is realized, and the generation efficiency of the unit is improved on the premise of not changing a hardware system.
Drawings
FIG. 1 is a schematic structural view of a platform according to the present invention;
FIG. 2 is a schematic structural diagram of a tower footing cabinet and a frequency converter cabinet according to the present invention;
FIG. 3 is a schematic structural diagram of a bracket of a frequency converter cabinet and a bracket of a water pump according to the present invention;
FIG. 4 is a schematic structural diagram of a frequency converter, a water inlet rubber pipe assembly of a frequency converter cabinet and a water outlet rubber pipe assembly of the frequency converter cabinet.
In the figure:
1. a cable opening; 2. a hexagonal opening; 3. an electrical cabinet; 4. a first rectangular opening; 5. a second rectangular opening; 6. mounting holes; 7. a cable; 8. a third rectangular opening; 9. a rectangular frame; 10. A platform; 11. a tower footing cabinet; 12. auxiliary change; 13. a frequency converter cabinet; 14. a water pump; 15. a cable bridge; 16. a converter cabinet support; 17. a water pump bracket; 18. a water-cooled protective cover; 19. a frequency converter; 20. A water inlet rubber pipe component of the frequency converter cabinet; 21. a water outlet rubber pipe component of the frequency converter cabinet; 22. a single pipe clamp; 23. A cooler main water outlet rubber pipe component; 24. the cooler is always provided with a water inlet rubber pipe component.
Detailed Description
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a put converter under wind turbine generator system, includes platform 10, be provided with cable opening 1 on the platform 10, be provided with first rectangle opening 4 and second rectangle opening 5 on the platform 10, first rectangle opening 4 is located the left side of second rectangle opening 5, and the right side of second rectangle opening 5 is provided with cable testing bridge 15, has seted up in the mounting hole 6 on the cable testing bridge 15, has adhered to cable 7 on the cable testing bridge 15, and cable 7 runs through mounting hole 6, be provided with rectangle frame 9 on the platform 10, the place that corresponds rectangle frame 9 position on the platform 10 is provided with water-cooling protection casing 18, is provided with water pump support 17 on the platform 10, is provided with water pump 14 on water pump support 17, and the upside of platform 10 is provided with column foot cabinet 11, assists and becomes 12 and converter cabinet 13.
Specifically, a hexagonal opening 2 is formed in one side of the cable bridge 15, and an electrical cabinet 3 is arranged in the hexagonal opening 2;
specifically, a third rectangular opening 8 is formed in one side of the cable bridge 15;
specifically, a water outlet of the water pump 14 is connected with a water inlet of the frequency converter cabinet 13 through a frequency converter cabinet water inlet rubber tube assembly 20, a frequency converter 19 is arranged in the frequency converter cabinet 13, a water outlet of the frequency converter cabinet 13 is communicated with the outer surface of the water tank through a frequency converter cabinet water outlet rubber tube assembly 21, the water pump 14 is arranged in the water tank, single pipe clamps 22 are arranged on the frequency converter cabinet water inlet rubber tube assembly 20 and the frequency converter cabinet water outlet rubber tube assembly 21 respectively, the frequency converter cabinet 13 and the water tank are fixedly arranged on the platform 10, and a cooler total water outlet rubber tube assembly 23 and a cooler total water inlet rubber tube assembly 24 are arranged between the water tank and the frequency converter cabinet 13;
the working principle is as follows: before transformation, each phase of the rotor side of the generator is connected with 2 185mm2 cables 7, each phase needs to be increased to 3, and therefore 1 cable 7 needs to be separated from each phase of the stator side to the rotor side. Before the transformation of the stator side, each phase is 9 185mm2 cables 7, wherein 1 is transferred to the rotor side, while the stator side only needs 7 185mm2 cables 7, each phase has 1 extra cable 7, and the extra cables 7 are respectively grounded in a cabin and a tower foundation.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a wind turbine generator system puts converter down, includes platform (10), its characterized in that, be provided with cable opening (1) on platform (10), be provided with first rectangle opening (4) and second rectangle opening (5) on platform (10), first rectangle opening (4) are located the left side of second rectangle opening (5), the right side of second rectangle opening (5) is provided with cable testing bridge (15), set up in mounting hole (6) on cable testing bridge (15), cable (7) are adhered to on cable testing bridge (15), cable (7) run through mounting hole (6), be provided with rectangle frame (9) on platform (10), the place that corresponds rectangle frame (9) position on platform (10) is provided with water-cooling protection casing (18), be provided with water pump support (17) on platform (10), be provided with water pump (14) on water pump support (17), the upper side of the platform (10) is provided with a tower footing cabinet (11), an auxiliary transformer (12) and a frequency converter cabinet (13).
2. The down-converter of a wind turbine generator according to claim 1, wherein a hexagonal opening (2) is provided at one side of the cable bridge (15), and an electrical cabinet (3) is provided in the hexagonal opening (2).
3. The frequency converter under the wind turbine generator according to claim 1, wherein a third rectangular opening (8) is formed in one side of the cable bridge (15).
4. The underneath-placed frequency converter of the wind turbine generator system according to claim 1, wherein a water outlet of the water pump (14) is connected with a water inlet of the frequency converter cabinet (13) through a frequency converter cabinet water inlet rubber tube assembly (20), a frequency converter (19) is arranged in the frequency converter cabinet (13), a water outlet of the frequency converter cabinet (13) is communicated with an outer surface of the water tank through a frequency converter cabinet water outlet rubber tube assembly (21), the water pump (14) is arranged in the water tank, and single pipe clamps (22) are arranged on the frequency converter cabinet water inlet rubber tube assembly (20) and the frequency converter cabinet water outlet rubber tube assembly (21).
5. The down-converter of a wind turbine generator according to claim 4, characterized in that the converter cabinet (13) and the water tank are both fixedly mounted on the platform (10).
6. The underneath frequency converter of a wind turbine generator according to claim 5, characterized in that a cooler main water outlet rubber pipe assembly (23) and a cooler main water inlet rubber pipe assembly (24) are arranged between the water tank and the frequency converter cabinet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122908961.0U CN216241119U (en) | 2021-11-24 | 2021-11-24 | Underlying frequency converter of wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122908961.0U CN216241119U (en) | 2021-11-24 | 2021-11-24 | Underlying frequency converter of wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216241119U true CN216241119U (en) | 2022-04-08 |
Family
ID=80955814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122908961.0U Active CN216241119U (en) | 2021-11-24 | 2021-11-24 | Underlying frequency converter of wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216241119U (en) |
-
2021
- 2021-11-24 CN CN202122908961.0U patent/CN216241119U/en active Active
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