CN202550582U - Doubly-fed wind generator unit - Google Patents

Doubly-fed wind generator unit Download PDF

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Publication number
CN202550582U
CN202550582U CN2012201212901U CN201220121290U CN202550582U CN 202550582 U CN202550582 U CN 202550582U CN 2012201212901 U CN2012201212901 U CN 2012201212901U CN 201220121290 U CN201220121290 U CN 201220121290U CN 202550582 U CN202550582 U CN 202550582U
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China
Prior art keywords
wind
electricity generation
powered electricity
booster
booster stations
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Expired - Lifetime
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CN2012201212901U
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Chinese (zh)
Inventor
潘爱强
金家培
汪融
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Shanghai Municipal Electric Power Co
East China Power Test and Research Institute Co Ltd
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Shanghai Municipal Electric Power Co
East China Power Test and Research Institute Co Ltd
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Priority to CN2012201212901U priority Critical patent/CN202550582U/en
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Publication of CN202550582U publication Critical patent/CN202550582U/en
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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
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

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Abstract

The utility model relates to a wind generator unit, in particular to a doubly-fed wind generator unit. The doubly-fed wind generator unit comprises a booster station boosting system and a wind generator unit, wherein the wind generator unit comprises four wind generator subunits which are respectively connected with the booster station boosting system, and each wind generator subunit comprises at least nine wind generators with a single unit capacity being 2MW and at least nine box-type transformers; the box-type transformers are connected with the wind generators; and the wind generators are pitch-variable wind generators. Due to the adoption of the technical scheme, the doubly-fed wind generator unit disclosed by the utility model is simple in integral structure; the generated power energy and voltage are stable; the conversation rate of energy sources is high; when rainstorm or typhoon occurs, a wind generator of the doubly-fed wind generator unit adopts a doubly-fed asynchronous wind generator in the pitch-variable wind generator, so that the side action is small and wind force in severe weather can be properly utilized for generating power.

Description

A kind of double-fed fan motor unit
Technical field
The utility model relates to a kind of wind-powered electricity generation unit, is specifically related to a kind of double-fed fan motor unit.
Background technology
Green energy conservation is one of theme of paying close attention to the most of society now.Along with developing rapidly of global economy, the excessive exploitation of the energy, it is extremely urgent to seek the novel environment-friendly type energy.In numerous green energy resources of at present having developed, wind resource fails to be fully utilized in China always.Wind condition in China's Coastal Areas is better, has possessed the condition of exploitation wind-powered electricity generation unit generation.But because the sea and the intertidal zone environment of coastal area are abominable, wind-force intensity is big, also is prone to often occur strong rain and typhoon, and these bring influence all can for the normal operation of wind-powered electricity generation machine.And the compound mode of good wind-powered electricity generation unit can remedy the certain influence that bad weather brings for the wind-powered electricity generation machine; And can make full use of the wind resource generating; Improve the efficient of wind power generation, but the compound mode and the cable gear electric line of existing now wind-powered electricity generation unit are all unsatisfactory, power benefit is relatively poor.
The utility model content
The purpose of the utility model is, a kind of double-fed fan motor unit is provided, and solves above technical problem.
The technical problem that the utility model solved can adopt following technical scheme to realize:
A kind of double-fed fan motor unit comprises a booster stations booster system, a wind-powered electricity generation unit, it is characterized in that, said wind-powered electricity generation unit comprises four wind-powered electricity generation loom unit, and four said wind-powered electricity generation loom unit connect said booster stations booster system respectively;
Said wind-powered electricity generation loom unit comprises that at least nine single-machine capacities are the wind-powered electricity generation machine of 2MW, at least nine box type transformers, and said box type transformer connects said wind-powered electricity generation machine, and said wind-powered electricity generation machine adopts variable pitch wind-powered electricity generation machine.
The wind-powered electricity generation machine of the utility model is a variable pitch wind-powered electricity generation machine, and said variable pitch wind-powered electricity generation machine is lower than fixed pitch wind turbine rated wind speed, and efficient is high, and does not have the power decline problem that is higher than rated wind speed.But for preventing each said wind-powered electricity generation loom unit transformation or voltage instability, each said wind-powered electricity generation machine all is connected with said box type transformer, makes the voltage that each said wind-powered electricity generation machine produced be stable equivalent voltage, guarantees the safety of whole wind group of motors.
Four said wind-powered electricity generation loom unit are arranged side by side, and the wind-powered electricity generation machine of four said wind-powered electricity generation loom unit is setting in one line so that mutual irrelevant operation the between each said wind-powered electricity generation machine, and form a wire catch the wind network, make full use of wind-resources.
Said wind-powered electricity generation machine is a dual-feed asynchronous wind power generator; Said dual-feed asynchronous wind power generator comprises a rotor winding, an impeller, a two-way frequency conversion system; Said impeller connects said rotor winding, and the power output end of said rotor winding connects said two-way frequency conversion system.Said dual-feed asynchronous wind power generator power coefficient is high, can absorb the ability fluctuation that the wind speed sudden change is produced, and helps said wind-powered electricity generation unit and bears the negative effect that bad weather causes.
Said wind-powered electricity generation loom unit also comprises at least nine transformation supervisory control systems, is provided with said transformation supervisory control system between said wind-powered electricity generation machine and the said box type transformer.Said transformation supervisory control system is carried out monitoring analysis to the energy data that said wind-powered electricity generation machine is produced, and controls said box type transformer according to said energy data, and the output voltage that makes said box type transformer is stable steady state value.
Said transformation supervisory control system comprises a current transformer, a voltage transformer, a microprocessor system; Said current transformer is the dynamo-electric current transformer of wind-powered electricity generation; Said voltage transformer is the dynamo-electric instrument transformer of pressing of wind-powered electricity generation; The dynamo-electric pressure sensor of said wind-powered electricity generation, the dynamo-electric flow sensor of wind-powered electricity generation connect said wind-powered electricity generation machine, and said microprocessor system connects the signal output part of the dynamo-electric pressure sensor of said wind-powered electricity generation, the dynamo-electric flow sensor of wind-powered electricity generation.
Also comprise a voltage regulating device, said wind-powered electricity generation unit connects said booster stations booster system, is provided with said voltage regulating device between said booster stations booster system and the said wind-powered electricity generation unit.
Said voltage regulating device comprises a harmonic elimination apparatus, a SVC high pressure dynamic reactive compensation device, and said harmonic elimination apparatus, SVC high pressure dynamic reactive compensation device connect the junction of said wind-powered electricity generation unit and said booster stations booster system respectively.Said harmonic elimination apparatus can avoid harmonic current to turn back in the said box type transformer, can reduce the harmonic content of circuit greatly, helps the operation of said box type transformer, reduces power consumption, improves the reliability of equipment.Said SVC high pressure dynamic reactive compensation device can improve the stability of voltage in the circuit, solves said wind-powered electricity generation unit in power generation process, the reactive power impact that circuit load produced.
Also comprise a booster stations supervisory control system; Said booster stations supervisory control system comprises a voltage transformer, a current transformer, a data processing module; Said voltage transformer is the booster stations voltage transformer; Said current transformer is the booster stations current transformer; Said booster stations voltage transformer, booster stations current transformer are positioned at the junction of said wind-powered electricity generation unit and said booster stations booster system; Said booster stations current transformer connects the current input terminal of said booster stations booster system, and said booster stations voltage transformer connects the current output terminal of said wind-powered electricity generation unit, and the signal output part of said booster stations voltage transformer, booster stations current transformer connects said data processing module.Said booster stations supervisory control system is monitored electric current, the voltage of the current input terminal that gets into said booster stations booster system; Both can guarantee to assist said booster stations booster system to regulate and control; The current method of guaranteeing said booster stations booster system output is a current stabilization circuit; Also can check the output voltage and the electric current of said wind-powered electricity generation loom unit whether stable, thereby to each said wind-powered electricity generation loom unit.
Beneficial effect: owing to adopt technique scheme; The utility model overall structure is simple, and the electric energy voltage that is produced is stable, and energy conversion ratio is high; During in the face of heavy rain or typhoon weather; Become the dual-feed asynchronous wind power generator of slurry in the wind-powered electricity generation machine because its wind-driven generator adopts to have, it is little not only to receive side effect, and the wind-force in the bad weather that utilizes that can be suitable generates electricity.
Description of drawings
Fig. 1 is a kind of circuit diagram of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, a kind of double-fed fan motor unit comprises a booster stations booster system 1, a wind-powered electricity generation unit, and the wind-powered electricity generation unit comprises that 2, four wind-powered electricity generation looms unit, four wind-powered electricity generation loom unit 2 connects booster stations booster system 1 respectively; Wind-powered electricity generation loom unit 2 comprises that at least nine single-machine capacities are the wind-powered electricity generation machine 21 of 2MW, at least nine box type transformers 22, and box type transformer 22 connects wind-powered electricity generation machines 21, and wind-powered electricity generation machine 21 adopts variable pitch wind-powered electricity generation machines.The wind-powered electricity generation machine of the utility model is a variable pitch wind-powered electricity generation machine, and variable pitch wind-powered electricity generation machine is lower than fixed pitch wind turbine rated wind speed, and efficient is high, and does not have the power decline problem that is higher than rated wind speed.But for preventing each wind-powered electricity generation loom unit transformation or voltage instability, each wind-powered electricity generation machine all is connected with box type transformer 22, makes the voltage that each wind-powered electricity generation machine produced be stable equivalent voltage, guarantees the safety of whole wind group of motors.
Four wind-powered electricity generation loom unit 2 are arranged side by side, and the wind-powered electricity generation machine of four wind-powered electricity generation loom unit 2 is setting in one line so that mutual irrelevant operation the between each wind-powered electricity generation machine, and form a wire catch the wind network, make full use of wind-resources.Wind-powered electricity generation machine 21 is a dual-feed asynchronous wind power generator, and dual-feed asynchronous wind power generator comprises a rotor winding, an impeller, a two-way frequency conversion system, and impeller connects the rotor winding, and the power output end of rotor winding connects two-way frequency conversion system.The dual-feed asynchronous wind power generator power coefficient is high, can absorb the ability fluctuation that the wind speed sudden change is produced, and helps the wind-powered electricity generation unit and bears the negative effect that bad weather causes.
Wind-powered electricity generation loom unit 2 also comprises at least nine transformation supervisory control systems 3, is provided with transformation supervisory control system 3 between wind-powered electricity generation machine 21 and the box type transformer 22.The energy data that 3 pairs of wind-powered electricity generation machines 21 of transformation supervisory control system are produced carries out monitoring analysis, and according to energy data control box type transformer 22, the output voltage that makes box type transformer 22 is stable steady state value.Transformation supervisory control system 3 comprises a current transformer, a voltage transformer, a microprocessor system 33; Current transformer is the dynamo-electric current transformer 31 of wind-powered electricity generation; Voltage transformer is the dynamo-electric instrument transformer 32 of pressing of wind-powered electricity generation; The dynamo-electric pressure sensor 32 of wind-powered electricity generation, the dynamo-electric flow sensor 31 of wind-powered electricity generation connect wind-powered electricity generation machine 21, and microprocessor system 33 connects the signal output part of the dynamo-electric pressure sensor 32 of wind-powered electricity generation, the dynamo-electric flow sensor 31 of wind-powered electricity generation.
Also comprise a voltage regulating device, the wind-powered electricity generation unit connects booster stations booster system 1, is provided with voltage regulating device between booster stations booster system 1 and the wind-powered electricity generation unit.Voltage regulating device comprises a harmonic elimination apparatus 41, a SVC high pressure dynamic reactive compensation device 42, and harmonic elimination apparatus 41, SVC high pressure dynamic reactive compensation device 42 connect the junction of wind-powered electricity generation unit and booster stations booster system 1 respectively.Harmonic elimination apparatus can avoid harmonic current to turn back in the box type transformer, can reduce the harmonic content of circuit greatly, helps the operation of box type transformer, reduces power consumption, improves the reliability of equipment.SVC high pressure dynamic reactive compensation device can improve the stability of voltage in the circuit, solves the wind-powered electricity generation unit in power generation process, the reactive power impact that circuit load produced.
Also comprise a booster stations supervisory control system; The booster stations supervisory control system comprises a voltage transformer, a current transformer, a data processing module 53; Voltage transformer is a booster stations voltage transformer 51; Current transformer is a booster stations current transformer 52, and booster stations voltage transformer 51, booster stations current transformer 52 are positioned at the junction of wind-powered electricity generation unit and booster stations booster system 1, and booster stations current transformer 52 connects the current input terminal of booster stations booster system 1; Booster stations voltage transformer 51 connects the current output terminal of wind-powered electricity generation unit, and the signal output part of booster stations voltage transformer 51, booster stations current transformer 52 connects data processing module 53.The booster stations supervisory control system is monitored electric current, the voltage of the current input terminal of entering booster stations booster system 1; Both can guarantee to assist booster stations booster system 1 to regulate and control; The current method of guaranteeing 1 output of booster stations booster system is a current stabilization circuit; Also can check the output voltage and the electric current of wind-powered electricity generation loom unit 2 whether stable, thereby to each wind-powered electricity generation loom unit.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.

Claims (8)

1. a double-fed fan motor unit comprises a booster stations booster system, a wind-powered electricity generation unit, it is characterized in that, said wind-powered electricity generation unit comprises four wind-powered electricity generation loom unit, and four said wind-powered electricity generation loom unit connect said booster stations booster system respectively;
Said wind-powered electricity generation loom unit comprises that at least nine single-machine capacities are the wind-powered electricity generation machine of 2MW, at least nine box type transformers, and said box type transformer connects said wind-powered electricity generation machine, and said wind-powered electricity generation machine adopts variable pitch wind-powered electricity generation machine.
2. a kind of double-fed fan motor unit according to claim 1 is characterized in that: four said wind-powered electricity generation loom unit are arranged side by side, and the wind-powered electricity generation machine of four said wind-powered electricity generation loom unit is setting in one line.
3. a kind of double-fed fan motor unit according to claim 2; It is characterized in that: said wind-powered electricity generation machine is a dual-feed asynchronous wind power generator; Said dual-feed asynchronous wind power generator comprises a rotor winding, an impeller, a two-way frequency conversion system; Said impeller connects said rotor winding, and the power output end of said rotor winding connects said two-way frequency conversion system.
4. a kind of double-fed fan motor unit according to claim 3 is characterized in that: said wind-powered electricity generation loom unit also comprises at least nine transformation supervisory control systems, is provided with said transformation supervisory control system between said wind-powered electricity generation machine and the said box type transformer.
5. a kind of double-fed fan motor unit according to claim 4; It is characterized in that: said transformation supervisory control system comprises a current transformer, a voltage transformer, a microprocessor system; Said current transformer is the dynamo-electric current transformer of wind-powered electricity generation, and said voltage transformer is the dynamo-electric instrument transformer of pressing of wind-powered electricity generation;
The dynamo-electric pressure sensor of said wind-powered electricity generation, the dynamo-electric flow sensor of wind-powered electricity generation connect said wind-powered electricity generation machine, and said microprocessor system connects the signal output part of the dynamo-electric pressure sensor of said wind-powered electricity generation, the dynamo-electric flow sensor of wind-powered electricity generation.
6. a kind of double-fed fan motor unit according to claim 5; It is characterized in that: said voltage regulating device comprises a harmonic elimination apparatus, a SVC high pressure dynamic reactive compensation device, and said harmonic elimination apparatus, SVC high pressure dynamic reactive compensation device connect the junction of said wind-powered electricity generation unit and said booster stations booster system respectively.
7. a kind of double-fed fan motor unit according to claim 6; It is characterized in that: also comprise a booster stations supervisory control system; Said booster stations supervisory control system comprises a voltage transformer, a current transformer, a data processing module; Said voltage transformer is the booster stations voltage transformer, and said current transformer is the booster stations current transformer;
Said booster stations voltage transformer, booster stations current transformer are positioned at the junction of said wind-powered electricity generation unit and said booster stations booster system.
8. a kind of double-fed fan motor unit according to claim 7; It is characterized in that: said booster stations current transformer connects the current input terminal of said booster stations booster system; Said booster stations voltage transformer connects the current output terminal of said wind-powered electricity generation unit, and the signal output part of said booster stations voltage transformer, booster stations current transformer connects said data processing module.
CN2012201212901U 2012-03-27 2012-03-27 Doubly-fed wind generator unit Expired - Lifetime CN202550582U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201212901U CN202550582U (en) 2012-03-27 2012-03-27 Doubly-fed wind generator unit

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Application Number Priority Date Filing Date Title
CN2012201212901U CN202550582U (en) 2012-03-27 2012-03-27 Doubly-fed wind generator unit

Publications (1)

Publication Number Publication Date
CN202550582U true CN202550582U (en) 2012-11-21

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Country Status (1)

Country Link
CN (1) CN202550582U (en)

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