CN201173168Y - Direct-drive type wind power generator - Google Patents
Direct-drive type wind power generator Download PDFInfo
- Publication number
- CN201173168Y CN201173168Y CNU2008201018411U CN200820101841U CN201173168Y CN 201173168 Y CN201173168 Y CN 201173168Y CN U2008201018411 U CNU2008201018411 U CN U2008201018411U CN 200820101841 U CN200820101841 U CN 200820101841U CN 201173168 Y CN201173168 Y CN 201173168Y
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- China
- Prior art keywords
- generator
- rotor
- main shaft
- wind wheel
- control box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 relates to a direct drive type wind power electric generator, which comprises a wheel hub, a paddle blade, a permanent magnetism direct drive electric generator, a main control box and a wind wheel controlling box, wherein, one end of a rotor main shaft of the permanent magnetism direct drive electric generator is connected with the paddle blade through the wheel hub, the other end thereof is connected with the main shafts of a separately excited type synchronous electric generator and an excitation motor, or the main shaft of an outer rotor direct current electric generator, or the main shaft of a direct current generator, the output end of the excitation motor or the direct current electric generator is connected with the wind wheel controlling box through a cable, the cable is arranged in a through hole of the main shaft, an electromagnetic wave emitter is arranged on the main control box, an electromagnetic wave receiver is arranged on the wheel hub, and the non-contact data transmission is realized in wind wheel controlling signals through the electromagnetic wave emitter and the electromagnetic wave receiver. The direct drive wind power electric generator improves the transmission mode of the wind wheel controlling power supply and the control signals to cancel the conductive slipping rings in the prior art, and because the power supply and the control signals are not transmitted via the conductive slipping ring any longer, the probability of the invalidation of the wind wheel control systems and the safety accident occurrence is greatly reduced.
Description
Technical field
The utility model relates to a kind of direct-drive aerogenerator.
Background technique
The wind wheel control system of wind-driven generator is to be made of blade, wheel hub, electrical source of power transmission cable, slip ring, standby power supply, wind wheel control box etc.In wind generating unit, existing control strategy is: below rated wind speed, wind wheel comes regulating load and then control rotating speed by optimizing the operation of propeller pitch angle fixed pitch by current transformer, reaches the purpose of following the trail of the best power curve and catching maximal wind-energy; More than rated wind speed, the wind wheel control system is then adjusted blade, change the wind energy coefficient by the wind wheel control system by regulating propeller pitch angle or fixed pitch stall device, thereby change the wind wheel tip speed ratio, the rotating speed and the power of control wind-powered electricity generation unit prevent that the wind-powered electricity generation unit from exceeding rev limit and power limit operation and the accident that may cause.
The electrical source of power of the wind wheel control system of existing direct-drive aerogenerator is to be connected with the outside by conducting slip ring with control signal, conducting slip ring is transfer parts in the sound transmission course, it utilizes the sliding contact of conductive member, transmits electrical signal and electric energy from the outside to the wind wheel control gear that rotates.Because of contact material and the long Mechanical Contact of rotating machinery, electrical performance indexes morphs can to cause insulation resistance, contact resistance, dielectric strength and crosstalk etc., cause disabler the most at last, conducting slip ring working life and reliability are on the low side to have become main fault in the wind wheel control system.
Summary of the invention
The purpose of this utility model just provides a kind of direct-drive aerogenerator that can significantly reduce the inefficacy of wind wheel control system and security incident takes place.
Direct-drive aerogenerator of the present utility model, comprise wheel hub, blade, bearing, permanent magnet direct-drive generator, main shaft, brake disc, main control box, break, wind wheel control box, wherein wheel hub, blade and wind wheel control box constitute the wind wheel of wind-driven generator, one end of permanent magnet direct-drive generator amature main shaft is connected with blade by wheel hub, the other end and brake disc are fixed, and connect the main shaft of separated exciting synchronous generator and exciter by coupling, or external rotor DC generator main shaft, or DC generator main shaft; The electrical source of power that drives blade is by exciter or DC generator supply, the output terminal of exciter or DC generator is connected with the wind wheel control box by cable, cable is arranged in the through hole of main shaft, electromagnetic wave transmitter is housed on the main control box, electromagnetic wave receiver is installed on the wheel hub, and the wind wheel control signal is to realize the non-contact data transmission by electromagnetic wave transmitter and electromagnetic wave receiver.
Direct-drive aerogenerator of the present utility model is by improving the transmission means of wind wheel control electrical source of power and control signal, thereby cancel conducting slip ring of the prior art, the wind wheel electrical source of power is by DC generator or the exciter supply coaxial with the permanent magnet direct-drive generator shaft, and control signal is controlled the paddle of wind wheel by the method for wireless transmission.Because electrical source of power and control signal are no longer transferred via conducting slip ring, thereby significantly reduced the probability that wind wheel control system (variable propeller pitch device or fixed pitch stall control mechanism) lost efficacy and security incident takes place.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model example structure schematic representation;
Fig. 3 is the utility model example structure schematic representation;
Fig. 4 is the utility model example structure schematic representation.
Embodiment
Embodiment 1 (as Fig. 1): a kind of direct-drive aerogenerator, comprise wheel hub 1, blade 2, bearing 3, permanent magnet direct-drive generator 4, main shaft 5, brake disc 6, main control box 10, break 12, wind wheel control box 14, one end of the rotor main shaft 5 of permanent magnet direct-drive generator 4 is connected with blade 2 by wheel hub 1, the other end and brake disc 6 are fixing, and link to each other by the rotor main shaft of coupling with separated exciting synchronous generator 7, the exciter 8 of separated exciting synchronous generator 7 is a DC generator, exciter 8 is coaxial with separated exciting synchronous generator 7, the output terminal of exciter 8 is connected with the rotor winding and the wind wheel control box 14 of separated exciting synchronous generator 7 respectively by cable 15, cable 15 is installed in the through hole 16 of separated exciting synchronous generator 7 rotor main shafts and permanent magnet direct-drive generator shaft 5, exciter 8 provides field current for separated exciting synchronous generator 7, for the wind wheel control system provides electrical source of power, electromagnetic wave transmitter 9 is housed on the main control box 10, electromagnetic wave receiver 13 is installed on the wheel hub 1, permanent magnet direct-drive generator 4, break 11, separated exciting synchronous generator 7 is fixed on the support of tower tube 10.
Its working principle is: before blade 2 starts, when surveying mean wind velocity that air flow system records in a period of time greater than the incision wind speed, break 11 unclamps, adopt blade 2 angles of attack with wind wheel of variable propeller pitch device to reach maximum, adopt the blade 2 that then makes of fixed pitch stall control gear to regain the blade tip damping plate, make blade 2 be in direction down with the wind.After blade 2 overcomes the stiction startup, blade 2 drives permanent magnet direct- drive generator 4 and 7 runnings of separated exciting synchronous generator, according to rotating speed, main control box 10 sends the field current that separated exciting synchronous generator 7 is regulated in instruction, when the output power of separated exciting synchronous generator 7 during near its rated power, add load for permanent magnet direct-drive generator 4, simultaneously, reduce the field current of separated exciting synchronous generator 7.With the exciter 8 of separated exciting synchronous generator 7 rotor coaxials except that providing the field current for separated exciting synchronous generator 7, also by cable aweather cranking wheel control system electrical source of power is provided.
When wind speed changes in rated range, the wind wheel control system will be failure to actuate all the time, and the control of its rotating speed is to realize by the field current of adjusting separated exciting synchronous generator 7 and control output current; When the wind speed over range, wind wheel is controlled, reduce the blade angle of attack gradually or make the action of blade tip damping plate, reach cut-out wind speed up to wind speed, wind wheel enters guard mode.
The wind wheel control signal is to realize the non-contact data transmission by the electromagnetic wave receiver 13 that is installed in the electromagnetic wave transmitter 9 on the main control box 10 and be installed on the wheel hub 1, send control command through 12 pairs of blade controlling devices of wind wheel control box again, thereby change the working state of blade.
Its working principle is: when mean wind velocity greater than incision during wind speed, release brake 12, by mains supply frequency-conversion and speed-regulation motor 20 is started, drive external rotor 18 rotations of external rotor DC generator, or drive external rotor 18 rotations of external rotor DC generator, aweather cranking wheel control system power supply by secondary wind wheel 21.Adopt the blade angle of attack with wind wheel of variable propeller pitch device to reach maximum, adopt the blade that then makes of fixed pitch stall control gear to regain the blade tip damping plate, wind wheel is in direction down with the wind, after wind wheel rotates, form relative rotary motion between the internal rotor 17 of external rotor DC generator and the external rotor 18, main control box 10 sends instruction correspondingly slows down frequency-conversion and speed-regulation motor 20, and during 4 work of permanent magnet direct-drive generator, main control box 10 is according to the load of the instruction regulator generator of speed controller.When the wind speed over range, wind wheel is controlled, reduce the blade angle of attack gradually or make the action of blade tip damping plate, reach cut-out wind speed up to wind speed, wind wheel enters guard mode.
The transmission means of wind wheel control signal with implement identical described in 1.
Embodiment 3 (as Fig. 4): a kind of direct-drive aerogenerator comprises wheel hub 1, blade 2, bearing 3, permanent magnet direct-drive generator 4, main shaft 5, brake disc 6, main control box 10, break 12, wind wheel control box 14, one end of permanent magnet direct-drive generator 4 rotor main shafts 5 is connected with blade 2 by wheel hub 1, the other end and brake disc 6 are fixing, and link to each other with rotor 23 main shafts of DC generator by coupling, the output terminal of the winding of the stator 22 of DC generator is connected with wind wheel control box 14 by cable 15, cable 15 is installed in the through hole 16 of rotor 23 main shafts of DC generator and permanent magnet direct-drive generator shaft 5, for the wind wheel control system provides electrical source of power, electromagnetic wave transmitter 9 is housed on the main control box 10, electromagnetic wave receiver 13 is installed on the wheel hub 1, permanent magnet direct-drive generator 4, the stator 22 and the break 12 of DC generator are fixed on the support of tower tube 11.
Its working principle is: after wind wheel rotated, dc generator rotor 23 was started working and aweather cranking wheel control system power supply.During magneto alternator work, the current transformer in the main control box 9 is according to the load of the instruction regulator generator of speed controller, and when wind speed changed in rated range, the wind wheel control system was failure to actuate all the time.When the wind speed over range, adopt the blade angle of attack that to make of variable propeller pitch device to reduce gradually; Adopt the blade tip damping plate action that makes of fixed pitch stall control mechanism to change into 90 ° gradually, reach cut-out wind speed up to wind speed, wind wheel enters guard mode.
The transmission means of wind wheel control signal with implement identical described in 1.
Claims (3)
1, a kind of direct-drive aerogenerator, comprise wheel hub (1), blade (2), bearing (3), permanent magnet direct-drive generator (4), main shaft (5), brake disc (6), main control box (10), break (12), wind wheel control box (14), it is characterized in that: an end of the rotor main shaft (5) of permanent magnet direct-drive generator (4) is connected with blade (2) by wheel hub (1), the other end and brake disc (6) are fixing, and link to each other by the rotor main shaft of coupling with separated exciting synchronous generator (7), the exciter (8) of separated exciting synchronous generator (7) is a DC generator, exciter (8) is coaxial with separated exciting synchronous generator (7), the output terminal of exciter (8) is connected with the rotor winding and the wind wheel control box (14) of separated exciting synchronous generator (7) respectively by cable (15), cable (15) is installed in the through hole (16) of separated exciting synchronous generator (7) rotor main shaft and permanent magnet direct-drive generator shaft (5), electromagnetic wave transmitter (9) is housed on the main control box (10), and electromagnetic wave receiver (13) is installed on the wheel hub (1).
2, a kind of direct-drive aerogenerator, comprise wheel hub (1), blade (2), bearing (3), permanent magnet direct-drive generator (4), main shaft (5), brake disc (6), main control box (10), break (12), wind wheel control box (14), it is characterized in that: an end of the rotor main shaft (5) of permanent magnet direct-drive generator (4) is connected with blade (2) by wheel hub (1), the other end and brake disc (6) are fixing, and link to each other with internal rotor (17) main shaft of external rotor DC generator by coupling, the external rotor of external rotor DC generator (18) links to each other with secondary wind wheel (21), or link to each other with frequency-conversion and speed-regulation motor (20) by belt, external rotor (18) is fixed on internal rotor (17) main shaft of external rotor DC generator by bearing (19), the external rotor of external rotor DC generator (18) is provided with permanent magnet, the output terminal that internal rotor (17) is gone up winding is connected with wind wheel control box (14) by cable (15), cable (15) is installed in the through hole (16) of internal rotor (17) main shaft of external rotor DC generator and permanent magnet direct-drive generator shaft (5), electromagnetic wave transmitter (9) is housed on the main control box (10), and electromagnetic wave receiver (13) is installed on the wheel hub (1).
3, a kind of direct-drive aerogenerator, comprise wheel hub (1), blade (2), bearing (3), permanent magnet direct-drive generator (4), main shaft (5), brake disc (6), main control box (10), break (12), wind wheel control box (14), it is characterized in that: an end of the rotor main shaft (5) of permanent magnet direct-drive generator (4) is connected with blade (2) by wheel hub (1), the other end and brake disc (6) are fixing, and link to each other with rotor (23) main shaft of DC generator by coupling, the output terminal of the winding of the stator of DC generator (22) is connected with wind wheel control box (14) by cable (15), cable (15) is installed in the through hole (16) of rotor (23) main shaft of DC generator and permanent magnet direct-drive generator shaft (5), electromagnetic wave transmitter (9) is housed on the main control box (10), and electromagnetic wave receiver (13) is installed on the wheel hub (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201018411U CN201173168Y (en) | 2008-04-01 | 2008-04-01 | Direct-drive type wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201018411U CN201173168Y (en) | 2008-04-01 | 2008-04-01 | Direct-drive type wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201173168Y true CN201173168Y (en) | 2008-12-31 |
Family
ID=40200286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201018411U Expired - Fee Related CN201173168Y (en) | 2008-04-01 | 2008-04-01 | Direct-drive type wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201173168Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519720A (en) * | 2011-12-22 | 2012-06-27 | 太原重工股份有限公司 | Test unit of variable-pitch system of wind generation set |
| CN102638056A (en) * | 2012-04-20 | 2012-08-15 | 国电联合动力技术有限公司 | Direct-drive type grid-connected wind generating set |
| CN105679522A (en) * | 2016-03-03 | 2016-06-15 | 南京航空航天大学 | Mechanical/non-contact compound slip ring and working mode |
| CN107074354A (en) * | 2016-12-30 | 2017-08-18 | 深圳市大疆创新科技有限公司 | Power set, power suit and unmanned vehicle |
| CN111058999A (en) * | 2018-10-17 | 2020-04-24 | 苏州市职业大学 | Wind driven generator self-adaptive to wind direction |
-
2008
- 2008-04-01 CN CNU2008201018411U patent/CN201173168Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519720A (en) * | 2011-12-22 | 2012-06-27 | 太原重工股份有限公司 | Test unit of variable-pitch system of wind generation set |
| CN102638056A (en) * | 2012-04-20 | 2012-08-15 | 国电联合动力技术有限公司 | Direct-drive type grid-connected wind generating set |
| CN105679522A (en) * | 2016-03-03 | 2016-06-15 | 南京航空航天大学 | Mechanical/non-contact compound slip ring and working mode |
| CN107074354A (en) * | 2016-12-30 | 2017-08-18 | 深圳市大疆创新科技有限公司 | Power set, power suit and unmanned vehicle |
| CN111058999A (en) * | 2018-10-17 | 2020-04-24 | 苏州市职业大学 | Wind driven generator self-adaptive to wind direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081231 |