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 PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
speed permanent
permanent magnet
stator high
zero
double
Prior art date
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
Application number
CN2011200235437U
Other languages
Chinese (zh)
Inventor
曹书强
董书俊
王鹏
宋鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Wind Power Shandong Co Ltd
Original Assignee
CNR Wind Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CNR Wind Power Co Ltd filed Critical CNR Wind Power Co Ltd
Priority to CN2011200235437U priority Critical patent/CN201994685U/en
Application granted granted Critical
Publication of CN201994685U publication Critical patent/CN201994685U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects

Landscapes

  • Control Of Eletrric Generators (AREA)
  • Wind Motors (AREA)

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

The two stator high-speed permanent magnetic wind powered generator systems of zero difference
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.
CN2011200235437U 2011-01-25 2011-01-25 Zero-potential difference double-stator high-speed permanent magnet wind driven generator system Expired - Fee Related CN201994685U (en)

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

Family

ID=44671160

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
Wu et al. Power conversion and control of wind energy systems
CN102900623B (en) Floating type marine wind energy and wave energy hybrid power generation platform
CN102865197B (en) Straight wind driven generator
CN102624026A (en) Variable speed wind-power system based on variable frequency transformer and control method of variable speed wind-power system
WO2014194914A1 (en) Wind power plant controller
CN1664359A (en) Wind power generation equipment
CN102916446A (en) Electric control system of asynchronous wind generating set
CN2883720Y (en) Wind-driven generating unit
CN101514684B (en) Columnar multistage aerogenerator
CN105406668A (en) Disk type generator capable of changing power
CN202228266U (en) Wind collection type wind generating set
CN103225587B (en) A kind of leeward direction wind-driven generator group
CN201241793Y (en) Column type multilevel wind power generator
CN201994685U (en) Zero-potential difference double-stator high-speed permanent magnet wind driven generator system
CN102619690A (en) Vertical axis wind turbine capable of adjusting attack angle by using wind power
CN102635510A (en) Device and control method for preparing wind energy, ocean energy and solar energy
CN202417840U (en) Energy storing, transmitting and adjusting system for power grid
CN203604121U (en) Multilayer distributary type hydraulic constant speed power generation system of vertical axis wind turbine
CN202228275U (en) Wind power AC pitch control system
CN202832983U (en) Wind power plant on high-rise building
CN202474885U (en) Variable-speed wind power system based on variable-frequency transformer
CN201003466Y (en) 1.5MW direct-drive type variable speed constant frequency wind-driven generator group
CN201466744U (en) Wind power generation system with centralized power conversion
CN204419449U (en) Two ends direct wind-driven generator
CN202957613U (en) Simulation device of active-reactive permanent magnet direct-driven wind generator set

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