CN207542795U - Wind turbine transmission system - Google Patents
Wind turbine transmission system Download PDFInfo
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- CN207542795U CN207542795U CN201721800978.1U CN201721800978U CN207542795U CN 207542795 U CN207542795 U CN 207542795U CN 201721800978 U CN201721800978 U CN 201721800978U CN 207542795 U CN207542795 U CN 207542795U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 55
- 230000005611 electricity Effects 0.000 claims abstract description 29
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- 239000003990 capacitor Substances 0.000 claims description 21
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
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- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
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- 238000010248 power generation Methods 0.000 description 3
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- 238000012986 modification Methods 0.000 description 1
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Classifications
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The utility model is related to wind-powered electricity generation transmission technique field more particularly to a kind of wind turbine transmission systems.The wind turbine transmission system, including：Multigroup wind power generating set and the transmission of electricity busbar being connect with the wind power generating set；Wind power generating set described in every group includes wind wheel and the Multiple coil direct driving motor, current transformer, multiwinding transformer, the rectifier that are electrically connected successively；The output terminal of rectifier in wind power generating set described in every group is connected with the transmission of electricity busbar.The utility model makes the alternating current that generator is sent out, into high voltage direct current, reduce the cost of electric energy transmission in wind power plant internal conversion by the way that wind power generating set is connected in parallel.
Description
Technical field
The utility model is related to wind-powered electricity generation transmission technique field more particularly to a kind of wind turbine transmission systems.
Background technology
Establish the important means that marine wind electric field is open regenerative resource, compared with land wind power plant, marine wind electric field
Not only there are abundanter wind energy resources, but also be not take up land resources, rapidly become the research hotspot of wind power generation field.
Compared with ac transmission, direct current transportation does not have reactive power conveying, and therefore, HVDC Transmission Technology becomes remote sea
Upper wind farm grid-connected optimal selection, but HVDC Transmission Technology needs to build the electrical platform in large-scale sea sea to be supported to change
Stream station.At sea building the electrical platform of Large marine, not only cost is very high, but also construction is difficult.Traditional marine wind electric field
It needs that low frequency ac is converted into high voltage direct current using more electric energy converting equipment, this not only adds system cost,
And the multiple conversions of energy increase system loss.
The prior art utilizes more typhoon power generators and a controller, and the wind-driven generator connects AC-DC transverters,
The DC output side of the AC-DC transverters is parallel with dc-link capacitance and half-H-bridge transverter, by more typhoon power generators pair
The outlet side series connection for the more half-H-bridge transverters answered.But this cascaded structure is used, it, will once a wind turbine breaks down
Cause DC bus-bar voltage failure.
Utility model content
The purpose of this utility model is intended to provide a kind of wind turbine transmission system, and high voltage direct current is converted alternating current to realize
The purpose of electricity, while cascaded structure is avoided to be also easy to produce the phenomenon that transmitting electricity busbar voltage failure when carrying out direct current transportation.
To achieve these goals, the utility model provides following technical scheme：
A kind of wind turbine transmission system, including：Multigroup wind power generating set and set on the defeated of the wind power generating set side
Goddess of lightning's line；Wind power generating set described in every group includes wind wheel and the Multiple coil direct driving motor being electrically connected successively, current transformer, more
Winding transformer and rectifier；The output terminal of rectifier in wind power generating set described in every group is connected with the transmission of electricity busbar.
Preferably, the Multiple coil direct driving motor is permanent magnet direct-driving aerogenerator.
Preferably, the rotor of the permanent magnet direct-driving aerogenerator and wind wheel are coaxially connected, permanent magnet direct-driving aerogenerator
Stator have a 3N winding, N >=3, every three windings form one group of three-phase alternating current system.
Specifically, the current transformer joins current transformer, the input terminal of the single-phase medium pressure grade connection current transformer for single-phase medium pressure grade
One group of three-phase windings of mouth and the Multiple coil direct driving motor are electrically connected, the output port of the single-phase medium pressure grade connection current transformer
It is electrically connected with the primary side winding of multiwinding transformer.
Specifically, the multiwinding transformer include for adjust conveying voltage swing primary side winding and multiple secondary around
Group, the primary side winding of the multiwinding transformer are connected with single-phase medium pressure grade connection current transformer, the secondary of the multiwinding transformer
Winding is connected with the input terminal of the rectifier.
Specifically, the single-phase medium pressure grade connection current transformer includes several mutually cascade Integral power units；It is described
The first lead-out terminal of Integral power unit described in several first order mutually in cascade Integral power units is and more
The first terminal connection of winding transformer primary side winding, second output terminal of Integral power unit described in afterbody, with
The Second terminal connection of multiwinding transformer primary side winding；Adjacent institute except the first order and afterbody Integral power unit
Second output terminal for stating Integral power unit described in the upper level in Integral power unit is integrated with described in next stage
The first lead-out terminal connection of power cell.
Specifically, the rectifier joins rectifier, the input terminal of the single-phase medium pressure grade connection rectifier for single-phase medium pressure grade
The vice-side winding of mouth and multiwinding transformer is electrically connected, the output port of the single-phase medium pressure grade connection rectifier and the transmission of electricity
Busbar is connected.
Specifically, the transmission of electricity busbar includes direct current positive bus and direct current negative busbar.
Specifically, the single-phase medium pressure grade connection rectifier includes several mutually cascade H bridges rectified power units, described
The quantity of H bridge rectified power units is identical with the quantity of the vice-side winding of the multiwinding transformer.
Specifically, every grade of H bridges rectified power unit includes sequentially connected H bridge rectifiers, busbar in parallel electricity
Appearance and discharge resistance；The bus capacitor of every grade of H bridges rectified power unit include positive output port and negative output port, first
The positive output port of the bus capacitor of grade H bridge rectified power units is connected with direct current positive bus, the last one described H bridge
The negative output port of the corresponding bus capacitor of rectified power unit is connected with direct current negative busbar, the first order and afterbody
Other than H bridge rectified power units in remaining adjacent H bridges rectified power unit upper level H bridge rectified power units negative output port
It is connected with the positive output port of next stage H bridge rectified power unit median generatrix capacitances.
Compared with prior art, the embodiment of the utility model has the following advantages：
The utility model using multigroup wind power generating set using parallel-connection structure by the output terminal of rectifier with it is described straight
Stream transmission of electricity busbar is connected directly, and is realized by multigroup wind power generating set and is converted to the low frequency ac that wind wheel generates directly
Piezoelectricity is transported in conveying busbar in stream, and wind turbine is established without establishing large-scale marine convector or marine electrical platform, reduction
The cost of transmission system；Moreover, there is event in any group of wind turbine easily occurred when avoiding wind power generating set using cascaded structure
Cause the voltage failure problem of transmission of electricity busbar during barrier.
Wind power generating set provided by the utility model includes multiwinding transformer, expands appearance by increasing voltage class
The problems such as measuring, avoiding the occurrence of stream or circulation improves the reliability of wind turbine transmission system.
The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
The utility model is above-mentioned and/or additional aspect and advantage from the following description of the accompanying drawings of embodiments will
Become apparent and be readily appreciated that, wherein：
Fig. 1 is the structure diagram of wind turbine transmission system provided by the utility model；
Fig. 2 is the structure diagram of wind power generating set provided by the utility model；
Fig. 3 is that Integral power unit cascades schematic diagram in current transformer provided by the utility model；
Fig. 4 is the unit cascaded schematic diagram of H bridge rectified powers in rectifier provided by the utility model.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
The utility model provides firstly a kind of wind turbine transmission system, and structure diagram is as shown in Figure 1, the wind turbine is defeated
Electric system includes：Multigroup wind power generating set 1 and the transmission of electricity busbar 2 set on 1 side of wind power generating set；Wind described in every group
Power generator group 1 includes Multiple coil direct driving motor 32, current transformer 33, the multiwinding transformer that 31 level-one of wind wheel is electrically connected successively
34th, rectifier 35；The output terminal of rectifier 35 in wind power generating set 1 described in every group is connected with the transmission of electricity busbar 2.
As shown in Figure 1, the wind turbine transmission system of the multiwinding transformer includes P groups wind power generating set 1 in parallel, often
The output terminal of a wind power generating set 1 is electrical connected respectively with the transmission of electricity busbar 2 of its net side.The mould of the wind power generating set 1
Block schematic diagram as shown in Fig. 2, including：Wind wheel 31 and the Multiple coil direct driving motor 32 being electrically connected successively, current transformer 33, mostly around
Group transformer 34, rectifier 35.
The wind wheel 31 transforms wind energy into mechanical energy, and the low frequency ac that Multiple coil direct driving motor 32 is sent out is through current transformer
During 33 are converted to high-frequency alternating current, and then be converted into middle pressure alternating current through multiwinding transformer 34, then rectified device 35 is converted into
Straightening galvanic electricity, medium pressure direct current are delivered on the bank again through busbar 2 of transmitting electricity, and interior land transverter converts medium voltage DC
It is followed by into exchange into public electric wire net.
What deserves to be explained is the voltage that the low pressure described in the utility model is tens volts, described middle pressure is tens kilovolts
Voltage, the preferred medium pressure electricity of the utility model is relatively high since medium pressure is higher by much than low pressure for 35KV or so
Pressure, therefore there is the saying that low tension is converted to high-voltage electricity in the utility model.
The transmission of electricity busbar 2 includes direct current positive bus and direct current negative busbar.What the transmission of electricity busbar 2 conveyed is direct current.
Since the voltage of direct current transportation busbar 2 is controllable, the caused voltage ripple of power network when wind speed changes can be avoided the problem that；And
And transmission of electricity busbar 2 can promote transmission distance, and reduce the cost of transmission line of electricity using the direct current transportation mode of two cables.
The utility model is directly connected to be driven using direct driving motor 32, removes gear-box this component from, produces electricl energy
While noise when reducing electric power generation, failure frequency higher portion when due to gear-box being wind-power electricity generation assembly operating
Part, direct driving motor 32 eliminate gear-box and its attachment, simplify drive mechanism, improve the reliability of generating set, meanwhile,
When generating set is run at the low rotational speed, rotary part is less, reliability higher, and non-gear box and its attachment reduce wind-force hair
The amount of parts of motor group avoids the periodic replacement of gear-box, reduces generating set volume, reduces operation expense.
The preferably described Multiple coil direct driving motor 32 of the utility model is permanent magnet direct-driving aerogenerator.The permanent magnetism direct drive wind
The rotor of power generator and the wind wheel 31 are coaxially connected, and the stator of permanent magnet direct-driving aerogenerator has a 3N winding, N >=3, often
Three windings form one group of three-phase alternating current system.The size of N is not only related to medium pressure grade connection current transformer 33, machine winding, simultaneously
It is also related to the manufacturing process of motor.
Similarly, the permanent magnet direct-driving aerogenerator does not have gear-box, reduces power transmission loss, improves power generation effect
Rate, and permanent magnet direct driving motor 32 is simple in structure, power factor is high, and control strategy operation is relatively easy, and reliability is high.
It is connected with the output terminal of the Multiple coil direct driving motor 32 with the input terminal of current transformer 33, the current transformer 33 is preferred
Join current transformer 33 for single-phase medium pressure grade, the single-phase medium pressure grade connection current transformer 33 includes several mutually cascade integrated power
Unit 330, with reference to shown in figure 1 and Fig. 2, the single-phase medium pressure grade connection current transformer 33 includes N number of Integral power unit
330, each Integral power unit 330 there are three input terminal and two leading-out terminals, three input terminals with it is straight
One group of three-phase windings for driving motor 32 are connected, the leading-out terminal of described two leading-out terminals and other Integral power units 330
It is connected or the output port as current transformer 33 is connected with the primary side winding of multiwinding transformer 34.Specific connection situation is such as
Under：The first lead-out terminal of first Integral power unit 330 and the first end of 34 primary side winding of multiwinding transformer
The of mouthful connection, second output terminal of first Integral power unit 330 and second Integral power unit 330
One leading-out terminal is connected；Second output terminal of Integral power unit 330 described in n-th and the primary side of multiwinding transformer 34
The second port connection of winding, the first lead-out terminal of Integral power unit 330 described in n-th and (N-1) a described one
Second output terminal of body power cell 330 is connected, the first lead-out terminal of remaining Integral power unit 330 with
Second output terminal of a upper Integral power unit 330 is connected, second output terminal with it is next described integrated
The first lead-out terminal connection of power cell 330.
The Integral power unit 330 of the single-phase medium pressure grade connection current transformer 33 cascades schematic diagram as shown in figure 3, Fig. 3 master
The connection of 330 inner structure part of two-stage Integral power unit, each Integral power unit 330 are equal before illustrating
Including three-phase PWM (pulse-width modulation, dual pulse width modulation) rectifier 331, bus capacitor and discharge resistance
332nd, chopper components and unload can resistance 333, H bridge inverters 334.The input signal of the Integral power unit 330 is from institute
Three input terminals for stating Three-Phase PWM Rectifier 331 enter the Integral power unit 330, through the bus capacitor and put
Resistance 332, chopper components and unload can resistance 333, export from two leading-out terminals of H bridge inverters 334, in addition to first
A and the last one described Integral power unit 330, the H bridge inverters 334 of remaining all Integral power unit 330
First lead-out terminal is connected with second output terminal of the H bridge inverters 334 of upper level Integral power unit 330, integration
Second output terminal of the H bridge inverters 334 of power cell 330 and the H bridge inverters of next stage Integral power unit 330
334 first lead-out terminal is connected.
The alternating current that the direct driving motor 32 is sent out by Three-Phase PWM Rectifier 331 be converted to direct current and to busbar electricity
Capacity charge, bus capacitor is in parallel with H bridge inverters 334, and the bus capacitor is controlled whether electric discharge by H bridge inverters 334.
The Integral power unit 330 uses Three-Phase PWM Rectifier 331, replaces half control with full-control type power switch pipe
Type power switch pipe or diode cut control rectification substitution phase control rectifier or uncontrollable rectifier with PWM, realize that net side power factor can
Control can realize the transmitted in both directions of electric energy and the response of faster dynamic control.
The utility model reduces conveying electric current using single-phase medium pressure grade connection current transformer 33, is compared to volage current transformer in three-phase
33 devices greatly reduce the quantity of modular multilevel variation phase (MMC) cascade module, reduce production cost, avoid
A series of problems caused by crossing the connection of multimode.
The Integral power unit 330 expands capacity by cascade form, avoids the technologies such as stream or/and circulation
Problem improves the reliability of wind turbine transmission system；Moreover, the voltage that medium pressure cascade rectifier 35 exports is high, electric current is small,
The midium voltage cable for only needing quantity few reduces the loss of machine system with regard to that can convey the voltage of equivalent amount.
The Multiple coil direct driving motor 32 and the current transformer 33 are focused in cabin by the utility model, it is only necessary to quantity
Electric energy is transferred to by high tower in the current transformer 33 of bottom of towe by few midium voltage cable, alleviates wind turbine transmission system significantly
It unties the mooring rope pressure.
The single-phase medium pressure grade connection current transformer 33 passes through the leading-out terminal of the interior H bridge inverters 334 set and Multiple coil transformation
Device 34 is connected, and the multiwinding transformer 34 includes the primary side winding and vice-side winding for adjusting conveying voltage swing, such as Fig. 2
Described, the multiwinding transformer 34 includes a primary side winding and several vice-side windings, the multiwinding transformer 34
Input terminal of the primary side winding as multiwinding transformer 34 is connected with the leading-out terminal of single-phase medium pressure grade connection current transformer 33, described
The vice-side winding of multiwinding transformer 34 is connected with the input terminal of the rectifier 35.
The utility model is powered by multiwinding transformer 34 to the different equipment of multiple voltage requirements, the output voltage
Size it is related with the vice-side winding number of turn, the utility model uses multiwinding transformer 34 as each different rectified power unit
Power supply, each H bridge power units are isolated from each other.It is converted to by multiwinding transformer 34 by voltage is conveyed convenient for conveying
Voltage is transmitted, and avoids generating stream in transmission process or the problems such as circulation, and advantageously reduce the cost of transmission system.
Rectifier 35 provided by the utility model joins rectifier 35, shown single-phase medium pressure grade connection rectifier for single-phase medium pressure grade
35 input terminal is connected with the vice-side winding of multiwinding transformer 34, and the single-phase medium pressure grade connection rectifier 35 includes several
Mutual cascade H bridges rectified power unit 350, quantity and the multiwinding transformer 34 of the H bridges rectified power unit 350
Vice-side winding quantity it is consistent, as shown in Fig. 2, H bridge rectified powers unit 350 include two input ports and two output terminals
Mouthful, the quantity of H bridge rectified powers unit 350 has M with the vice-side winding of the multiwinding transformer 34, M H bridge rectification work(
The connection mode of rate unit 350 is as follows：First H bridge rectified power unit 350 of single-phase medium pressure grade connection rectifier 35 is corresponding
Input port is connect with first pair of output port of the Multiple coil vice-side winding of the multiwinding transformer 34, single-phase medium pressure grade connection
The 350 corresponding input port of m-th H bridge rectified powers unit of rectifier 35 and the Multiple coil pair of the multiwinding transformer 34
The M of side winding connects output port.The H bridges rectified power unit 350 includes two output ports, respectively positive output
Port 3521 and negative output port 3522, first 350 corresponding positive output port 3521 of H bridges rectified power unit with it is straight
Stream positive bus-bar is connected, 350 corresponding negative output port 3522 of H bridges rectified power unit described in m-th and direct current negative busbar phase
Connection.
Schematic diagram, the H of the single-phase medium pressure grade connection rectifier 35 are cascaded with reference to H bridges rectified power unit 350 shown in Fig. 4
Bridge rectified power unit 350 includes：Sequentially connected H bridge rectifiers 351, bus capacitor and discharge resistance 352.Electric signal is from H
The input terminal of bridge rectifier 351 enters the H bridge rectifiers 351, and from the output of the bus capacitor and discharge resistance 352
Port is connected, and the bus capacitor and discharge resistance 352 include bus capacitor in parallel, discharge resistance, the bus capacitor
One end is positive output port 3521, and the other end is negative output port 3522, the mother of first order H bridge rectified powers unit 350
The positive output port 3521 of line capacitance is connected with direct current positive bus, the negative output port 3522 and of first bus capacitor
The positive output port 3521 of two bus capacitors is connected, and bus capacitor positive output port 3521 described in m-th and M-1 are a
The negative output port 3522 of the bus capacitor is connected, and negative output port 3522 and the direct current of bus capacitor described in m-th bear mother
Line is connected.
When electric energy is transmitted from rectifier 35 to motor drive direction, single-phase medium pressure grade connection rectifier 35 becomes single-phase medium pressure grade connection
Direct current energy is become alternating current by inverter, realizes the transmitted in both directions of electric energy.Shown rectifier 35 is expanded by cascade form
Capacity avoids stream or the problems such as circulation, improves the reliability of wind turbine transmission system.
To sum up, the utility model is turned using the low frequency ac that multigroup wind power generating set of parallel-connection structure generates wind wheel
It is changed to piezoelectricity in direct current to be transported in conveying busbar, realizes the power attenuation and Transmission Cost for reducing electric energy in transmission process,
And avoid the problem that voltage failure occurs in caused conveying busbar during the cascaded structure using wind power generating set.
The above is only some embodiments of the utility model, it is noted that for the common skill of the art
For art personnel, under the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of wind turbine transmission system, which is characterized in that including：Multigroup wind power generating set (1) and with the wind-driven generator
The transmission of electricity busbar (2) of group (1) connection；Wind power generating set (1) described in every group is including wind wheel (31) and is electrically connected successively
Multiple coil direct driving motor (32), current transformer (33), multiwinding transformer (34) and rectifier (35)；Wind-driven generator described in every group
The output terminal of rectifier (35) in group (1) is connected with the transmission of electricity busbar (2).
2. wind turbine transmission system according to claim 1, which is characterized in that the Multiple coil direct driving motor (32) is permanent magnetism
Direct wind-driven generator.
3. wind turbine transmission system according to claim 2, which is characterized in that the rotor of the permanent magnet direct-driving aerogenerator
Coaxially connected with wind wheel (31), the stator of permanent magnet direct-driving aerogenerator has 3N winding, N >=3, and every three windings form one group
Three-phase alternating current system.
4. wind turbine transmission system according to any one of claim 1-3, which is characterized in that the current transformer (33) is single
Phase medium pressure grade joins current transformer, the input port and the one of the Multiple coil direct driving motor (32) of the single-phase medium pressure grade connection current transformer
Group three-phase windings are electrically connected, the output port of the single-phase medium pressure grade connection current transformer and the primary side of multiwinding transformer (34) around
Group is electrically connected.
5. wind turbine transmission system according to claim 4, which is characterized in that the multiwinding transformer (34) is including being used for
Adjustment conveying voltage swing primary side winding and multiple vice-side windings, the primary side winding of the multiwinding transformer (34) with it is single-phase
Medium pressure grade connection current transformer (33) is connected, the vice-side winding of the multiwinding transformer (34) and the input terminal of the rectifier (35)
Son is connected.
6. wind turbine transmission system according to claim 5, which is characterized in that if the single-phase medium pressure grade connection current transformer includes
Dry mutual cascade Integral power unit (330)；In several described mutual cascade Integral power units (330)
The first lead-out terminal of Integral power unit described in the first order (330), first with multiwinding transformer (34) primary side winding
Terminal connects, second output terminal of Integral power unit (330) described in afterbody, with multiwinding transformer (34) primary side
The Second terminal connection of winding；The adjacent integrated work(except the first order and afterbody Integral power unit (330)
Second output terminal of Integral power unit (330) is integrated with described in next stage described in upper level in rate unit (330)
The first lead-out terminal connection of power cell (330).
7. wind turbine transmission system according to claim 6, which is characterized in that the rectifier (35) joins for single-phase medium pressure grade
Rectifier, the input port of the single-phase medium pressure grade connection rectifier and the vice-side winding of multiwinding transformer are electrically connected, described
The output port of single-phase medium pressure grade connection rectifier is connected with the transmission of electricity busbar.
8. wind turbine transmission system according to claim 7, which is characterized in that the transmission of electricity busbar (2) includes direct current positive pole
Line and direct current negative busbar.
9. wind turbine transmission system according to claim 8, which is characterized in that if the single-phase medium pressure grade connection rectifier includes
Dry mutual cascade H bridges rectified power unit (350), quantity and the Multiple coil of the H bridges rectified power unit (350)
The quantity of the vice-side winding of transformer (34) is identical.
10. wind turbine transmission system according to claim 9, which is characterized in that every grade of H bridges rectified power unit
(350) include sequentially connected H bridge rectifiers (351), bus capacitor in parallel and discharge resistance (352)；Every grade of H bridge
The bus capacitor of rectified power unit (350) includes positive output port (3521) and negative output port (3522), first order H bridges are whole
The positive output port (3521) of the bus capacitor of stream power cell (350) is connected with direct current positive bus, afterbody institute
The negative output port (3522) for stating the bus capacitor of H bridge rectified power units (350) is connected with direct current negative busbar, and first
Upper level H bridges are whole in remaining adjacent H bridges rectified power unit (350) other than grade and afterbody H bridge rectified power units (350)
Flow the negative output port (3522) of power cell and the positive output end of next stage H bridge rectified power unit (350) median generatrix capacitance
Mouth (3521) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800978.1U CN207542795U (en) | 2017-12-20 | 2017-12-20 | Wind turbine transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800978.1U CN207542795U (en) | 2017-12-20 | 2017-12-20 | Wind turbine transmission system |
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| Publication Number | Publication Date |
|---|---|
| CN207542795U true CN207542795U (en) | 2018-06-26 |
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ID=62618992
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721800978.1U Active CN207542795U (en) | 2017-12-20 | 2017-12-20 | Wind turbine transmission system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887924A (en) * | 2017-12-20 | 2018-04-06 | 北京金风科创风电设备有限公司 | Fan power transmission system |
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2017
- 2017-12-20 CN CN201721800978.1U patent/CN207542795U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887924A (en) * | 2017-12-20 | 2018-04-06 | 北京金风科创风电设备有限公司 | Fan power transmission system |
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