CN201994685U - Zero-potential difference double-stator high-speed permanent magnet wind driven generator system - Google Patents
Zero-potential difference double-stator high-speed permanent magnet wind driven generator system Download PDFInfo
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- CN201994685U CN201994685U CN2011200235437U CN201120023543U CN201994685U CN 201994685 U CN201994685 U CN 201994685U CN 2011200235437 U CN2011200235437 U CN 2011200235437U CN 201120023543 U CN201120023543 U CN 201120023543U CN 201994685 U CN201994685 U CN 201994685U
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- speed permanent
- permanent magnet
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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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- 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
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Abstract
The utility model discloses a zero-potential difference double-stator high-speed permanent magnet wind driven generator system, which comprises a vane wheel. The vane wheel is connected with a double-stator high-speed permanent magnet motor through an overdrive gear box, and the double-stator high-speed permanent magnet motor is connected with a power grid through a converter. The vane wheel is further connected with a main controller, and the main controller is in a double-way connection with a control unit, and the main controller is further connected with the converter through a signal conditioning unit. The converter comprises two sets of total power converters connected with a converter control module. The zero-potential difference double-stator high-speed permanent magnet wind driven generator system overcomes shortages of a traditional total power wind power generation technology, reduces generated energy cost of a unit KW, and solves a problem in the existing total power machine type of being low in efficiency and high in cost. The system is high in integrated level, small in maintenance amount and large in power density. Simultaneously, a total power converting technology can satisfy a requirement for low voltage ride through and reduces shocks on the power grid.
Description
Technical field
The utility model relates to the two stator high-speed permanent magnetic wind powered generator systems of a kind of zero difference.
Background technology
Be accompanied by the fast development of wind-powered electricity generation in the world wide, the explosive growth of wind-powered electricity generation enterprise, the wind-powered electricity generation installed capacity is constantly risen, and wind power generation proportion in mains supply improves constantly, therefore research is suitable for power grid operation, and generating efficiency height, the blower fan that cost is low just become the task of top priority.
At present, main flow total power type mainly contains permanent magnet direct-drive wind-force generating machine and total power mouse cage electric generator structure.Permanent magnet direct-drive causes electric generator structure big because rotating speed is low, and the stator copper demand is many, so copper loss is big, efficient is low, and general efficient point is lower than 95%; Though total power mouse cage motor is a high-speed electric expreess locomotive, volume is little and since asynchronous machine intrinsic characteristic need electrical network that idle support is provided, so the full power convertor capacity that needs is big, efficient is also low, and its economy is relatively poor, and large-scale current transformer design production cost is very high.
The utility model content
Lower for solving present total power type efficient, the cost problem of higher, the utility model provides zero difference two stator high-speed permanent magnetic wind powered generator systems.
For achieving the above object, the utility model adopts following technical scheme:
The two stator high-speed permanent magnetic wind powered generator systems of zero difference, it comprises impeller, and impeller is connected with two stator high-speed permanent magnet motors by step-up gear, and two stator high-speed permanent magnet motors are connected with electrical network by convertor assembly; Described impeller also is connected with master controller, and master controller is connected with the current transformer control unit is two-way; Described master controller also is connected with convertor assembly by the signal condition unit.
Described convertor assembly comprises two cover full power convertors, and full power convertor is connected with the current transformer control module.
The described pair of stator high-speed permanent magnet motor adopts two cover zero phase difference windings, and two cover zero phase difference windings are independent separately and be connected with full power convertor respectively.
The utility model proposes a kind of high-speed permanent magnetic generator, this generator unit stator adopts two cover zero phase difference windings, and two cover windings work alone.Because the rotating speed height, so the generator volume is little, copper loss is low, the efficient height, and generator efficiency is o'clock more than 98%.And because two cover windings connect current transformer separately, two cover current transformers adopt a cover control device, reduce design difficulty, not only save the controlling Design cost, and have saved the complete machine manufacturing cost greatly.Two cover windings can co-operation, also can work independently according to actual conditions.
This system works principle is as follows: wind acts on the impeller with the certain speed and the angle of attack, thereby making wind energy conversion system produce turning moment rotates, wind energy is transformed into mechanical kinetic energy, impeller driven gear case rotates, step-up gear is the little torque energy of high rotating speed with big torque Conversion of energy, to rotatably by the two stator high-speed permanent magnetic generators of zero difference then, kinetic energy is converted into electric energy, send with the irregular electric energy of change of wind velocity, the alternating current that generator sends can not directly be connected with electrical network, need be converted into and the line voltage size through the alternating current of two cover convertor assemblys with variable voltage variable frequency, phase place, the alternating current of frequency unanimity inserts electrical network then.
Beneficial effect: the utility model has overcome the deficiency of traditional total power wind generating technology, reduces unit K W energy output cost; It is lower to have solved present total power type efficient, the cost problem of higher.This level of integrated system height, maintenance is little, power density is big, and the total power Semiconductor Converting Technology can well satisfy the requirement that low-voltage is passed through simultaneously, reduces the impact to electrical network.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Wherein: 1 impeller, 2 step-up gears, 3 pairs of stator high-speed permanent magnet motors, 4 full power convertors, 5 signal condition unit, 6 current transformer control units, 7 master controllers, 8 current transformer control modules.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the two stator high-speed permanent magnetic wind powered generator systems of zero difference, it comprises impeller 1, and impeller 1 is connected with two stator high-speed permanent magnet motors 3 by step-up gear 2, and two stator high-speed permanent magnet motors 3 are connected with electrical network by convertor assembly; Described impeller 2 also is connected with master controller 7, master controller 7 and 6 two-way connections of current transformer control unit; Described master controller 7 also is connected with convertor assembly by signal condition unit 5.
Described convertor assembly comprises two cover full power convertors 4, and full power convertor 4 is connected with current transformer control module 8.
The described pair of stator high-speed permanent magnet motor 3 adopts two cover zero phase difference windings, and two cover zero phase difference windings are independent separately and be connected with full power convertor 4 respectively.
The utility model mainly comprises and is used to absorb wind energy, is the impeller 1 of kinetic energy with wind energy transformation; Increase rotating speed, reduce the step-up gear 2 that torque is used; The kinetic energy of rotation is converted into the zero difference double-stator permanent magnet generator 3 of electric energy; Irregular electric energy is converted into the two cover full power convertors 4 that regular electric energy is sent to electrical network; The conditioning unit 5 that electrical network electrical energy parameter and generator is generated electricity can parameter carry out filtering, be scaled the signal that current transformer control module 8 can insert; Be used for the current transformer self information and master controller 7 exchanges and the current transformer control unit 6 that how to move according to the concrete control commands indication of master controller 7 current transformer control modules 8; Be used for sending the master controller 7 of the exercises instruction of blower fan according to the information of blower fan information acquisition system collection; Be used for the relevant information and the electric network information comparative evaluation of wind energy conversion system and send the current transformer control module 8 of current transformer control command; Current transformer control module 8 is made of DSP, and current transformer control unit 6 is made up of PLC.
The grid type wind turbine generator is as the big system of an independent operating, and master controller 7 is extremely important.Master controller 7 is controlled the operation of machine system according to the various blower fan information that collect.Too high when wind speed, when surpassing the rated power of system, pitch-variable system is regulated the blade pitch angle, and power is controlled at the rated power place; When wind direction changed, yaw system can be followed the tracks of wind direction, made the unit work of facining the wind all the time, and operated when system carries out unwinding when repeatedly wind being caused the cable winding; Current transformer control unit 6 is used for the electric energy of generator output is controlled, the electric energy of the variable voltage variable frequency that generator is sent changes the electric energy of constant voltage, constant frequency into, be connected to the grid then, and the order of accepting master controller 7 in course of normal operation realizes the control of power output, thereby unit is operated under the optimal wind energy trapped state; And the unit master control system is used for by gathering wind direction information, and the angle of control driftage by rotating speed, generated output information and each parts working condition of gathering, is determined the size of propeller pitch angle, regulates energy output.
There is higher efficient in this system, preferably power curve through the test of small-scale test model machine, antijamming capability is stronger, unit volume is little, in light weight, and stronger low voltage ride-through capability is arranged, and particularly uses economic benefit fairly obvious in big MW wind turbine generator.
Claims (3)
1. the two stator high-speed permanent magnetic wind powered generator systems of zero difference is characterized in that it comprises impeller, and impeller is connected with two stator high-speed permanent magnet motors by step-up gear, and two stator high-speed permanent magnet motors are connected with electrical network by convertor assembly; Described impeller also is connected with master controller, and master controller is connected with the current transformer control unit is two-way; Described master controller also is connected with convertor assembly by the signal condition unit.
2. the two stator high-speed permanent magnetic wind powered generator systems of zero difference as claimed in claim 1 is characterized in that, described convertor assembly comprises two cover full power convertors, and full power convertor is connected with the current transformer control module.
3. the two stator high-speed permanent magnetic wind powered generator systems of zero difference as claimed in claim 1 or 2 is characterized in that, described pair of stator high-speed permanent magnet motor adopts two cover zero phase difference windings, and two cover zero phase difference windings are independent separately and be connected with full power convertor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200235437U CN201994685U (en) | 2011-01-25 | 2011-01-25 | Zero-potential difference double-stator high-speed permanent magnet wind driven generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200235437U CN201994685U (en) | 2011-01-25 | 2011-01-25 | Zero-potential difference double-stator high-speed permanent magnet wind driven generator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994685U true CN201994685U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200235437U Expired - Fee Related CN201994685U (en) | 2011-01-25 | 2011-01-25 | Zero-potential difference double-stator high-speed permanent magnet wind driven generator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424502A (en) * | 2017-09-04 | 2019-03-05 | 通用电气公司 | For preventing the system and method for the voltage dip of wind turbine electric system |
-
2011
- 2011-01-25 CN CN2011200235437U patent/CN201994685U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424502A (en) * | 2017-09-04 | 2019-03-05 | 通用电气公司 | For preventing the system and method for the voltage dip of wind turbine electric system |
| CN109424502B (en) * | 2017-09-04 | 2022-05-27 | 通用电气公司 | System and method for preventing voltage collapse of wind turbine power system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20180125 |