CN202811203U - Tandem wind power generation equipment - Google Patents
Tandem wind power generation equipment Download PDFInfo
- Publication number
- CN202811203U CN202811203U CN2012203179471U CN201220317947U CN202811203U CN 202811203 U CN202811203 U CN 202811203U CN 2012203179471 U CN2012203179471 U CN 2012203179471U CN 201220317947 U CN201220317947 U CN 201220317947U CN 202811203 U CN202811203 U CN 202811203U
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- generator
- wind power
- power plant
- connects
- alternator
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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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- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
The utility model discloses tandem wind power generation equipment which comprises a fan impeller, a speed-increasing gearbox, a DC (Direct Current) generator, a hydraulic coupler and an AC (Alternate Current) generator, wherein the speed-increasing gearbox is connected with the fan impeller; the DC generator is connected with a transmission output part of the speed-increasing gearbox; a driving part of the hydraulic coupler is connected with a transmission output part of the DC generator; and the AC generator is connected with a driven part of the hydraulic coupler. The tandem wind power generation equipment has the advantages of simple structure, low cost, reliability in operation and capability of efficient electricity generation in low-wind and high-wind regions.
Description
Technical field
The utility model relates to a kind of wind generating unit, particularly a kind of tandem wind power plant that can have equally greater efficiency in low wind speed and high wind speed zone.
Background technique
Along with development and the maturation of Power Electronic Technique and electric machines control technology, adopt various variable-frequency motors increasing as the wind-power electricity generation scheme of core component.Simultaneously, because the inherent characteristic of variable-frequency motor and frequency variator and technical sophistication degree, these adopt the wind-power electricity generation scheme of converter technique all to have to some extent the defectives such as with high costs, that control is complicated, component life is lower.In addition, there is no at present the cheap technology of the low wind speed generating of effective utilization.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model proposes a kind of tandem wind power plant that can effectively utilize low wind speed generating.
A kind of tandem wind power plant that the utility model solves the problems of the technologies described above comprises:
Draught fan impeller;
The step-up gear of connecting fan impeller;
The DC generator that connects the transmission carry-out part of described step-up gear;
Hydraulic couplers and alternator;
Wherein said DC generator connects described alternator by described hydraulic couplers.
Preferably, the initiative part of described hydraulic couplers connects the transmission carry-out part of described DC generator, and the follower of described hydraulic couplers connects described alternator.
Tandem wind power plant of the present utility model also comprises the inverter of the generating output terminal that connects described DC generator, and the transformer that is incorporated into the power networks that connects described inverter.
Preferably, the generating output terminal of described alternator connects the transformer that is incorporated into the power networks.
Preferably, described step-up gear utilizes elastic coupling flexible coupling to connect the rotating shaft of DC generator.
Preferably, described AC motor is one of the mechanical, electrical excitation synchronizer of squirrel-cage asynchronism machine, Wound-rotor asynchronous generating or permanent magnet synchronous machine.
With respect to prior art, the utlity model has following technique effect:
1, has equally higher electrical generation efficiency at low wind speed and high wind speed zone;
2, owing to the DC generator and the alternator technology maturation that adopt, so functional reliability is high, and applicability is wide, and its cost is lower.
Below in conjunction with accompanying drawing structure of the present utility model and principle are elaborated.
Description of drawings
Fig. 1 is the schematic representation of tandem wind power plant of the present utility model.
Wherein, 1 is draught fan impeller, and 2 is step-up gear, and 3 is DC generator, and 4 is hydraulic couplers, and 5 is alternator, and 6 is inverter, and 7 are the transformer that is incorporated into the power networks.
Embodiment
Fig. 1 has shown the structure of tandem wind power plant of the present utility model, comprising: draught fan impeller 1; The step-up gear 2 of connecting fan impeller 1; DC generator 3, its rotating shaft connects the transmission carry-out part of step-up gear 2; Hydraulic couplers 4, its initiative part connect the transmission carry-out part of described DC generator 3; Alternator 5.The follower of its rotating shaft connecting fluid mechanical couple 4.
Above-mentioned step-up gear 2 utilizes the elastic coupling flexible coupling (not shown) to connect the rotating shaft of DC generator 3.
Above-mentioned AC motor 5 can be one of the mechanical, electrical excitation synchronizer of squirrel-cage asynchronism machine, Wound-rotor asynchronous generating or permanent magnet synchronous machine.
In addition, as shown in Figure 1, tandem wind generating unit of the present utility model also comprises the inverter 6 of the generating output terminal that connects DC generator 3; And the transformer 7 that is incorporated into the power networks that connects inverter 6 output terminals.
In addition, the generating output terminal of alternator 5 also connects the transformer 7 that is incorporated into the power networks.
The initiative part of hydraulic couplers 4 can be main shaft, and its follower can be driven gear.
The utility model is considered the different qualities of various motors, proposed a kind of to two or more the power generating equipments that generator carries out the machinery series connection, wherein has a generator at least for being fit to the DC generator of low wind speed generating, all the other alternators for directly being connected to the grid by the transformer that is incorporated into the power networks.
Draught fan impeller 1 increases rotating speed by step-up gear 2, and step-up gear 2 connects DC generator 3 by traditional elastic coupling flexible coupling, provides higher torque so that DC generator 3 generatings to DC generator 3.DC generator 3 provides torque so that its generating by the hydraulic couplers 4 mechanical connection alternators 5 of controllable rotating speed to alternator 5.
The direct current that DC generator is sent is converted to the desired Ac that is connected to the grid by inverter.Alternator sends threephase AC, by the transformer direct grid-connected.
In the utility model, DC generator is all worked when low wind speed, high wind speed, and alternator is only worked when high wind speed.Therefore, two kinds of generator capacity ratios can be determined according to the wind field wind conditions.
When the wind field wind speed is low, hydraulic couplers is thrown off, only have DC generator to accept the torque that step-up gear imports into.Because in the direct current generator, the armature winding induction electromotive force is directly proportional with the product of rotating speed, air-gap flux, therefore, guarantee that by adjustment of field excitation the armature winding electromotive force can not surpass the threshold limit value of inverter.
When wind speed is higher, to alternator transmitting portions pull-up torque, alternator is progressively raised speed by hydraulic couplers, finally be incorporated into the power networks.After being incorporated into the power networks, by the control of alternator self-characteristic or its excitation, and hydraulic couplers adapts to the variation of wind speed, keeps DC generator and the alternator rotating speed is substantially constant.
Although above the utility model is had been described in detail, the utility model is not limited to this, and those skilled in the art of the present technique can carry out various modifications according to principle of the present utility model.Therefore, all modifications of doing according to the utility model principle all should be understood to fall into protection domain of the present utility model.
Claims (7)
1. a tandem wind power plant is characterized in that, comprising:
Draught fan impeller;
The step-up gear of connecting fan impeller;
The DC generator that connects the transmission carry-out part of described step-up gear;
Hydraulic couplers and alternator;
Wherein, described DC generator connects described alternator by described hydraulic couplers;
2. tandem wind power plant according to claim 1 is characterized in that, the initiative part of described hydraulic couplers connects the transmission carry-out part of described DC generator, and the follower of described hydraulic couplers connects described alternator.
3. tandem wind power plant according to claim 1 and 2 is characterized in that, also comprises the inverter of the generating output terminal that connects described DC generator.
4. tandem wind power plant according to claim 3 is characterized in that, also comprises the transformer that is incorporated into the power networks that connects described inverter.
5. tandem wind power plant according to claim 4 is characterized in that, the generating output terminal of described alternator connects the transformer that is incorporated into the power networks.
6. tandem wind power plant according to claim 1 and 2 is characterized in that, step-up gear utilizes elastic coupling flexible coupling to connect the rotating shaft of DC generator.
7. tandem wind power plant according to claim 1 and 2 is characterized in that, described alternator is one of the mechanical, electrical excitation synchronizer of squirrel-cage asynchronism machine, Wound-rotor asynchronous generating or permanent magnet synchronous machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203179471U CN202811203U (en) | 2012-06-29 | 2012-06-29 | Tandem wind power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203179471U CN202811203U (en) | 2012-06-29 | 2012-06-29 | Tandem wind power generation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811203U true CN202811203U (en) | 2013-03-20 |
Family
ID=47870088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203179471U Expired - Lifetime CN202811203U (en) | 2012-06-29 | 2012-06-29 | Tandem wind power generation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286143A (en) * | 2016-09-20 | 2017-01-04 | 广东技术师范学院 | Hydraulic power wind-driven generator |
-
2012
- 2012-06-29 CN CN2012203179471U patent/CN202811203U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286143A (en) * | 2016-09-20 | 2017-01-04 | 广东技术师范学院 | Hydraulic power wind-driven generator |
| CN106286143B (en) * | 2016-09-20 | 2019-04-23 | 广东技术师范学院 | Hydraulic power wind-driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
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| CX01 | Expiry of patent term |