CN201656498U - Full-power grid-connected device of brushless synchronous wind generating set - Google Patents
Full-power grid-connected device of brushless synchronous wind generating set Download PDFInfo
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- CN201656498U CN201656498U CN2010201648822U CN201020164882U CN201656498U CN 201656498 U CN201656498 U CN 201656498U CN 2010201648822 U CN2010201648822 U CN 2010201648822U CN 201020164882 U CN201020164882 U CN 201020164882U CN 201656498 U CN201656498 U CN 201656498U
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- power
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- transformer
- wind
- brushless synchronous
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
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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
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
A full-power grid-connected device of a brushless synchronous wind generating set comprises a wind turbine. The wind turbine is connected with one end of a transmission spindle of a speed increasing box, the other end of the transmission spindle of the speed increasing box is connected with a spindle of a high-power brushless synchronous wind generator, a three-phase power output end of the high-power brushless synchronous wind generator is electrically connected with a three-phase input end of a first full-power current transformer, a direct current output end of the first full-power current transformer is parallelly connected into a high-voltage electric wire and is further connected with a direct current input end of a second full-power current transformer through the high-voltage electric wire, an alternating current output end of the second full-power current transformer is connected with an input end of a transformer, and finally, an output end of the transformer is connected with an alternating current main power grid. On the basis of advantages of the direct current power transmission technology compared with alternating current power transmission and by aid of four-quadrant operated full-power conversion, the full-power grid-connected device has the advantages of simpler control, less building cost and lower transmission loss.
Description
Technical field
The present invention relates to brushless synchronous wind power generator group total power direct current interconnection technology field, particularly a kind of brushless synchronous wind power generator group total power grid-connecting apparatus.
Background technology
Large-scale wind electricity set grid-connection generating at present is the principal mode of world's Wind Power Utilization, and the function of grid type wind turbine generator is to convert wind energy to mechanical energy, again mechanical energy is converted to electric energy, is transported in the electrical network.Because wind power plant is based upon the abundant remote districts of wind energy resources usually, the electric energy that is produced often need carry out long-distance transmissions, and in order to improve electric energy transmitting efficient, electric pressure is generally higher, and cost is than higher.
Main at present employing of wind power generation plant exchanges interconnection technology, the output energy that its maximum characteristics are exactly wind turbine generator is all with alternating current form feed-in AC network, but its Stability Control and regulation of energy are relatively poor, and the long-distance transmissions loss is bigger, and the cost of required raising electric pressure is higher.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of brushless synchronous wind power generator group total power grid-connecting apparatus, it is simpler to have control, the characteristics that construction cost is still less littler with loss.
To achieve these goals, the technical solution used in the present invention is:
A kind of brushless synchronous wind power generator group total power grid-connecting apparatus, comprise wind energy conversion system 1, wind energy conversion system 1 joins with an end of the transmission main shaft of gearbox 2, the other end of the transmission main shaft of gearbox 2 links to each other with the main shaft of high-power brushless synchro wind generator 3, the three phase power output of high-power brushless synchro wind generator 3 is electrically connected with the three-phase input end of first full power convertor 4, the dc output end of first full power convertor 4 high-tension bus-bar that inserts in parallel, link to each other by the direct-flow input end of high-tension bus-bar with second full power convertor 5, the ac output end of second full power convertor 5 is connected with the input of transformer 6, the output incoming transport trunk electrical network 7 of last transformer 6.
Because the dc output end of the full power convertor 4 of each brushless synchronous wind power generator group connects together in the wind energy turbine set of the present invention, constitute the direct current network of wind energy turbine set inside, unified first full power convertor 5 that connects of the output of direct current network, it is simpler to have control, stability is higher, the characteristics that construction cost is still less littler with loss.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are described in detail.
With reference to accompanying drawing, a kind of brushless synchronous wind power generator group total power grid-connecting apparatus, comprise wind energy conversion system 1, wind energy conversion system 1 joins with an end of the transmission main shaft of gearbox 2, the other end of the transmission main shaft of gearbox 2 links to each other with the main shaft of high-power brushless synchro wind generator 3, the three phase power output of high-power brushless synchro wind generator 3 is electrically connected with the three-phase input end of first full power convertor 4, the dc output end of first full power convertor 4 high-tension bus-bar that inserts in parallel, link to each other by the direct-flow input end of high-tension bus-bar with second full power convertor 5, the ac output end of second full power convertor 5 is connected with the input of transformer 6, the output incoming transport trunk electrical network 7 of last transformer 6.
Wind energy is converted into mechanical energy via wind energy conversion system 1, via gearbox 2 mechanical energy of wind energy conversion system is passed to high-power brushless synchro wind generator 3 again, the alternating current that sends of high-power brushless synchro wind generator 3 is a direct current via 4 rectifications of first full power convertor then, pass through the high voltage direct current transmission electric wire then, near second full power convertor, 5 inversions that direct current is delivered to the user are alternating current, be depressured to the required voltage of user by transformer 6 again, and then be delivered to interchange trunk electrical network 7.
Power factor based on full power convertor can be adjusted into 1, and can make the energy transmitted in both directions, and first full power convertor 4 and second full power convertor 5 that are then adopted can be united the power converter that constitutes four quadrant running; And based on the advantage of direct current transportation technology with respect to aspects such as the regulation and control at energy of ac transmission, stability, losses, rely on simultaneously the total power conversion of the full power convertor notion of four quadrant running again, the transmission of electricity of wind energy turbine set that can finish the high-power brushless synchronous wind generating device that the is in remote districts task that is incorporated into the power networks, it is simpler to have control, the characteristics that construction cost is still less littler with loss.
Claims (1)
1. brushless synchronous wind power generator group total power grid-connecting apparatus, comprise wind energy conversion system (1), wind energy conversion system (1) joins with an end of the transmission main shaft of gearbox (2), the other end of the transmission main shaft of gearbox (2) links to each other with the main shaft of high-power brushless synchro wind generator (3), it is characterized in that, the three phase power output of high-power brushless synchro wind generator (3) is electrically connected with the three-phase input end of first full power convertor (4), the dc output end of first full power convertor (4) high-tension bus-bar that inserts in parallel, link to each other by the direct-flow input end of high-tension bus-bar with second full power convertor (5), the ac output end of second full power convertor (5) is connected with the input of transformer (6), the output incoming transport trunk electrical network (7) of last transformer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201648822U CN201656498U (en) | 2010-04-21 | 2010-04-21 | Full-power grid-connected device of brushless synchronous wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201648822U CN201656498U (en) | 2010-04-21 | 2010-04-21 | Full-power grid-connected device of brushless synchronous wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656498U true CN201656498U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201648822U Expired - Fee Related CN201656498U (en) | 2010-04-21 | 2010-04-21 | Full-power grid-connected device of brushless synchronous wind generating set |
Country Status (1)
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| CN (1) | CN201656498U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035218A (en) * | 2010-12-23 | 2011-04-27 | 东方电气集团东方汽轮机有限公司 | Power confluence method of multiple high altitude wind generating sets for intermittent power generation |
| CN102427243A (en) * | 2011-10-28 | 2012-04-25 | 华中科技大学 | Multi-terminal DC (Direct Current) power transmission system for combined synchronization of wind power plant and conventional power plant |
| WO2016169292A1 (en) * | 2015-04-24 | 2016-10-27 | 深圳先进技术研究院 | Control method and device for grid-connected operation of plurality of synchronous motors |
-
2010
- 2010-04-21 CN CN2010201648822U patent/CN201656498U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035218A (en) * | 2010-12-23 | 2011-04-27 | 东方电气集团东方汽轮机有限公司 | Power confluence method of multiple high altitude wind generating sets for intermittent power generation |
| CN102427243A (en) * | 2011-10-28 | 2012-04-25 | 华中科技大学 | Multi-terminal DC (Direct Current) power transmission system for combined synchronization of wind power plant and conventional power plant |
| WO2016169292A1 (en) * | 2015-04-24 | 2016-10-27 | 深圳先进技术研究院 | Control method and device for grid-connected operation of plurality of synchronous motors |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110421 |