CN201946995U - Full-power wind generating set - Google Patents
Full-power wind generating set Download PDFInfo
- Publication number
- CN201946995U CN201946995U CN 201120077035 CN201120077035U CN201946995U CN 201946995 U CN201946995 U CN 201946995U CN 201120077035 CN201120077035 CN 201120077035 CN 201120077035 U CN201120077035 U CN 201120077035U CN 201946995 U CN201946995 U CN 201946995U
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Abstract
The utility model discloses a full-power wind generating set, which comprises a transformer, a current transformer, a generator and a fan. A secondary edge of the transformer connected with the current transformer comprises at least two secondary edge windings; each secondary edge winding comprises three three-phase windings; the current transformer comprises three power unit chains; the number of power units of each power unit chain is equal to the number of the secondary edge windings of the transformer; the voltage class of the three-phase windings of the transformer is matched with that of the power units of the current transformer; an input end of one power unit is correspondingly connected with one three-phase winding of the transformer; output ends of the power units of the same power unit chain are in cascade connection; one ends of the power unit chains are connected with the secondary edge of the transformer, while the other ends of the power unit chains are connected with the same public reference point; and the power units are circuit units which convert three-phase power into single-phase power and can flow from a single-phase side to a three-phase side. In the utility model, the voltage class of the generator in the full-power wind generating set is promoted; the current class of electric components and connecting conducting wires of the generator set is decreased; the design difficulty and the cost are decreased; the structure is simple; and the implementation is convenient.
Description
Technical field
The utility model relates to a kind of generating set, is specifically related to a kind of high pressure total power wind turbine generator.
Background technology
As shown in Figure 1, the total power wind turbine generator comprises transformer 11, current transformer 12, generator 14 and the blower fan 15 that connects successively, and wherein, current transformer 12 connects the stator of generator 14.In the MW class wind turbine group, generally adopt the middle volage current transformer of the middle piezoelectricity machine and the middle volage current transformer, particularly 690V electric pressure of 690V electric pressure to possess better economic at present.
Continuous development along with wind power generation, power of fan improves constantly, engine power presents the trend that improves constantly, continue to adopt the motor of 690V electric pressure and the middle pressure scheme of current transformer as the total power wind turbine generator, then the electric current on the lead between the electric current of transformer 11, current transformer 12, generator 14 and current transformer 12 and the generator 14 all can rise, and brings problems such as engineering design difficulty and the rapid rising of manufacturing cost.
The utility model content
The technical problems to be solved in the utility model is, a kind of total power wind turbine generator is provided, and overcomes the wind-driven generator unit difficult design that prior art exists, the defective that manufacturing cost sharply rises.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of total power wind turbine generator, comprise the transformer, current transformer, generator and the blower fan that connect successively, it is characterized in that:
The secondary that described transformer is connected with described current transformer comprises at least two cover secondary windings, and every cover secondary winding comprises three three phase windings;
Described current transformer comprises three power cell chains, and the power cell quantity of each power cell chain equates with the secondary winding tricks of described transformer; The electric pressure of three phase windings of described transformer and the electric pressure of the power cell in the current transformer are complementary, corresponding one three phase winding that connects described transformer of described power cell input, the power cell output cascade of same described power cell chain, stator side, the other end that described power cell chain one end connects described generator connect same common reference point;
Described power cell is for transferring three-phase electricity to the circuit unit of single-phase electricity, and this circuit unit support electric energy by its single-phase effluent to its three-phase side.
In total power wind turbine generator of the present utility model, three three phase windings that respectively overlap winding of described transformer are three single-phase windings and are connected and form, and the method for attachment of described three phase windings is delta connection or is star connection.
In total power wind turbine generator of the present utility model, three three phase windings that respectively overlap winding of described transformer are three single-phase windings and are connected and form, and the method for attachment of described three phase windings comprises delta connection and star connection.
In total power wind turbine generator of the present utility model, the electric pressure of described generator is 3300V or 6600V or 10000V.
In total power wind turbine generator of the present utility model, described power cell comprises the controlled bridge of the three-phase that is coupled together by dc bus, bus capacitor and H type single-phase bridge.
In total power wind turbine generator of the present utility model, the controlled bridge of described three-phase is controlled bridge of two level three-phases or the controlled bridge of three level three-phases.
In total power wind turbine generator of the present utility model, described H type single-phase bridge is two level H type single-phase bridges or three level H type single-phase bridges.
Implement total power wind turbine generator of the present utility model, compared with the prior art, its beneficial effect is:
1. by adopting lower-cost multi winding transformer and current transformer cascade of power units, the electric pressure of generator is risen to high pressure grade (as 3300V, 6600V, 10000V etc.) by middle pressure grade, reduce each electric component in the wind-driven generator group system and connect the current class of lead, reach the purpose that reduces engineering design difficulty and overall manufacturing cost.
2. simple in structure, it is convenient to implement.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the basic composition schematic diagram of existing total power wind turbine generator.
Fig. 2 is that the utility model total power wind turbine generator constitutes and the annexation schematic diagram.
Fig. 3 is a kind of execution mode of current transformer power cell in the utility model total power wind turbine generator.
Fig. 4 is the another kind of execution mode of current transformer power cell in the utility model total power wind turbine generator.
Embodiment
As scheme shown in Figure 2ly, the utility model total power wind turbine generator comprises successively transformer 21, current transformer, generator 14 and the blower fan (not shown) that connects.
The secondary that transformer 21 is connected with current transformer comprises at least two cover secondary windings (present embodiment adopts three cover secondary windings), and every cover winding comprises three three phase windings.
Current transformer comprises three power cell chains, and the power cell quantity of each power cell chain equates with the secondary winding tricks of transformer 21.The electric pressure of three phase windings of transformer and the electric pressure of the power cell in the current transformer are complementary, corresponding one three phase winding that connects transformer 21 of the input of a power cell, the power cell output cascade of same power cell chain, stator side, the other end that power cell chain one end connects total power generator 14 connect same common reference point N.
The power cell of current transformer adopts the circuit unit that three-phase electricity can be transferred to single-phase electricity, and this circuit unit support electric energy by its single-phase effluent to its three-phase side, include but not limited to the power cell of following structure:
1, as shown in Figure 3, power cell comprises the controlled bridge 221 of two level three-phases, bus capacitor 222 and the two level H type single-phase bridges 223 (also can adopt three level H type single-phase bridges) that coupled together by dc bus.
2, as shown in Figure 4, power cell comprises the controlled bridge 224 of three level three-phases, bus capacitor 222 and the three level H type single-phase bridges 225 (also can adopt two level H type single-phase bridges) that coupled together by dc bus.
The quantity of power cell is determined by the output voltage grade of gradation voltage generator and power cell in the power cell chain.
Three three phase windings that respectively overlap winding of transformer secondary winding are three single-phase windings and are connected and form, and the method for attachment of three phase windings can all be adopted delta connection or all adopt star connection or both adopted delta connection also to adopt star connection.When three phase windings of transformer secondary winding had both adopted delta connection also to adopt star connection, each overlaps can form certain phase shift angle between the winding, can further promote the performances such as electric current of transformer.
Claims (7)
1. a total power wind turbine generator comprises the transformer, current transformer, generator and the blower fan that connect successively, it is characterized in that:
The secondary that described transformer is connected with described current transformer comprises at least two cover secondary windings, and every cover secondary winding comprises three three phase windings;
Described current transformer comprises three power cell chains, and the power cell quantity of each power cell chain equates with the secondary winding tricks of described transformer; The electric pressure of three phase windings of described transformer and the electric pressure of the power cell in the current transformer are complementary, corresponding one three phase winding that connects described transformer of described power cell input, the power cell output cascade of same described power cell chain, stator side, the other end that described power cell chain one end connects described generator connect same common reference point;
Described power cell is for transferring three-phase electricity to the circuit unit of single-phase electricity, and this circuit unit support electric energy by its single-phase effluent to its three-phase side.
2. total power wind turbine generator as claimed in claim 1, it is characterized in that, three three phase windings that respectively overlap winding of described transformer are three single-phase windings and are connected and form, and the method for attachment of described three phase windings is delta connection or is star connection.
3. total power wind turbine generator as claimed in claim 1 is characterized in that, three three phase windings that respectively overlap winding of described transformer are three single-phase windings and are connected and form, and the method for attachment of described three phase windings comprises delta connection and star connection.
4. total power wind turbine generator as claimed in claim 1 is characterized in that, the electric pressure of described generator is 3300V or 6600V or 10000V.
5. as the described total power wind turbine generator of one of claim 1 to 4, it is characterized in that described power cell comprises the controlled bridge of the three-phase that is coupled together by dc bus, bus capacitor and H type single-phase bridge.
6. total power wind turbine generator as claimed in claim 5 is characterized in that, the controlled bridge of described three-phase is controlled bridge of two level three-phases or the controlled bridge of three level three-phases.
7. total power wind turbine generator as claimed in claim 5 is characterized in that, described H type single-phase bridge is two level H type single-phase bridges or three level H type single-phase bridges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120077035 CN201946995U (en) | 2011-03-22 | 2011-03-22 | Full-power wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120077035 CN201946995U (en) | 2011-03-22 | 2011-03-22 | Full-power wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946995U true CN201946995U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120077035 Expired - Lifetime CN201946995U (en) | 2011-03-22 | 2011-03-22 | Full-power wind generating set |
Country Status (1)
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| CN (1) | CN201946995U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386633A (en) * | 2011-11-07 | 2012-03-21 | 荣信电力电子股份有限公司 | Megawatt direct-drive alternating current-direct current-alternating current wind power generating system with squirrel-cage asynchronous generator |
| WO2012126285A1 (en) * | 2011-03-22 | 2012-09-27 | 深圳市禾望电气有限公司 | Wind power generator system using generator with multiple windings |
| CN104533725A (en) * | 2015-01-19 | 2015-04-22 | 台达电子工业股份有限公司 | Wind power generation system |
| CN107134780A (en) * | 2017-06-29 | 2017-09-05 | 西安交通大学 | A kind of flexible multimode switch topology in port of Modularized medium-voltage three |
| CN107959449A (en) * | 2017-11-02 | 2018-04-24 | 重庆乾威科技有限公司 | A kind of combination generator |
| CN112202173A (en) * | 2020-10-19 | 2021-01-08 | 湖北春田电工技术有限公司 | Medium-voltage bus flexible interconnection power distribution network system |
-
2011
- 2011-03-22 CN CN 201120077035 patent/CN201946995U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012126285A1 (en) * | 2011-03-22 | 2012-09-27 | 深圳市禾望电气有限公司 | Wind power generator system using generator with multiple windings |
| CN102386633A (en) * | 2011-11-07 | 2012-03-21 | 荣信电力电子股份有限公司 | Megawatt direct-drive alternating current-direct current-alternating current wind power generating system with squirrel-cage asynchronous generator |
| CN104533725A (en) * | 2015-01-19 | 2015-04-22 | 台达电子工业股份有限公司 | Wind power generation system |
| EP3046203A1 (en) * | 2015-01-19 | 2016-07-20 | Delta Electronics, Inc. | Wind power conversion system |
| US9722505B2 (en) | 2015-01-19 | 2017-08-01 | Delta Electronics, Inc. | Wind power conversion system with plural first converting circuits and a second converting circuit |
| CN107134780A (en) * | 2017-06-29 | 2017-09-05 | 西安交通大学 | A kind of flexible multimode switch topology in port of Modularized medium-voltage three |
| CN107959449A (en) * | 2017-11-02 | 2018-04-24 | 重庆乾威科技有限公司 | A kind of combination generator |
| CN112202173A (en) * | 2020-10-19 | 2021-01-08 | 湖北春田电工技术有限公司 | Medium-voltage bus flexible interconnection power distribution network system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN HOPEWIND ELECTRIC CO., LTD. Free format text: FORMER NAME: SHENZHEN HEWANG ELECTRIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili town village official Liuzhou Industrial Zone No. 5 Building second layer 1-3 Patentee after: Shenzhen's standing grain hopes electric limited company Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Town, Dragon Village Second Industrial District 5 Building 5 floor Patentee before: Shenzhen Hewang Electric Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |