CN106930899A - The electric power system and method for supplying power to of the yaw motor in a kind of blower fan - Google Patents

The electric power system and method for supplying power to of the yaw motor in a kind of blower fan Download PDF

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Publication number
CN106930899A
CN106930899A CN201610390629.0A CN201610390629A CN106930899A CN 106930899 A CN106930899 A CN 106930899A CN 201610390629 A CN201610390629 A CN 201610390629A CN 106930899 A CN106930899 A CN 106930899A
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CN
China
Prior art keywords
power
yaw motor
vertical axis
axis aerogenerator
wind
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.)
Granted
Application number
CN201610390629.0A
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Chinese (zh)
Other versions
CN106930899B (en
Inventor
张羽
鲁志平
刘峰
张磊
冯克瑞
程学文
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.)
Beijing Puhua Yineng Wind Power Technology Co Ltd
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Beijing Puhua Yineng Wind Power Technology 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 Beijing Puhua Yineng Wind Power Technology Co Ltd filed Critical Beijing Puhua Yineng Wind Power Technology Co Ltd
Priority to CN201610390629.0A priority Critical patent/CN106930899B/en
Publication of CN106930899A publication Critical patent/CN106930899A/en
Application granted granted Critical
Publication of CN106930899B publication Critical patent/CN106930899B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors
    • F03D7/06Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00Application
    • F05B2220/70Application in combination with
    • F05B2220/706Application in combination with an electrical generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00Control
    • F05B2270/30Control parameters, e.g. input parameters
    • F05B2270/329Azimuth or yaw angle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00Control
    • F05B2270/60Control system actuates through
    • F05B2270/602Control system actuates through electrical actuators
    • 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
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The present invention relates to the electric power system and method for supplying power to of the yaw motor in a kind of blower fan, the system includes, yaw motor in cabin, the variable frequency drives being connected with yaw motor, the variable frequency drives are connected to be powered for yaw motor with power network, vertical axis aerogenerator is installed, vertical axis aerogenerator is connected by variable frequency drives with yaw motor above the cabin, with electric network power-fail as yaw motor is powered.Described method of supplying power to mainly includes:Judge that whether normally power network powers, when powering normal, power network is powered for yaw motor, when electric network power-fail, vertical axis aerogenerator generates electricity, and for yaw motor is powered.Vertical axis aerogenerator of the invention needs not rely on standby fossil fuel or battery, therefore power-on time is long, and vertical axis aerogenerator low cost, it is lightweight, install and it is easy to maintenance, bring larger economic benefit.

Description

The electric power system and method for supplying power to of the yaw motor in a kind of blower fan
Technical field
The present invention relates to the electric power system and supplier of electricity of the yaw motor in wind power generation field, especially a kind of blower fan Method.
Background technology
As conventional energy resource shortage and problem of environmental pollution aggravate, wind energy develops profit as renewable green energy resource to it With particularly significant.In wind-power electricity generation, in order to improve wind energy utilization, the yaw system of wind power generating set will have automatically partially The function of boat, i.e. yaw system want automatic accurate to wind.After weather forecast has violent typhoon, the central controller of wind field can be ordered Order is shut down per Fans, and impeller alignment wind direction, vane propeller-changing to feathering angle can so make the circumferential torque produced on wind wheel It is minimum with axial thrust.Especially at sea wind field, sometimes strength typhoon can destroy network system so that the outer net of blower fan is powered Circuit is cut off, and now cannot in time enter row line repairing, also has ship once in a while in addition to weather conditions and casts anchor and pounds disconnected seabed electricity The accident of cable, yaw motor needs to enable stand-by power supply powers, and existing yaw motor stand-by power supply typically has two kinds, Yi Zhongwei Battery, usually battery by grid charging, after electric network power-fail, for yaw motor power by battery;Another is diesel oil hair Motor, diesel-driven generator work, is that yaw motor is powered after electric network power-fail.Both power supply modes all have certain office It is sex-limited, first, the battery of a larger capacity is installed by the way of storage battery power supply, it is necessary in cabin, not only high cost, And limited battery life, power-on time is short, and maintenance cost is high, and by the way of diesel-driven generator is powered, equipment volume is big, Generating efficiency is low, and needs fuel consumption, starts slowly, and diesel-driven generator discharges meeting contaminated equipment in cabin, and has fire Calamity wind is limited, and maintenance cost is also higher.
Given this present invention is proposed.
The content of the invention
It is an object of the present invention to overcome the deficiencies in the prior art, there is provided a kind of in electric network power-fail, using vertical The electric power system of the yaw motor in blower fan that axis wind power generator generates electricity.
Method of supplying power to another object of the present invention is to provide a kind of electric power system of the yaw motor in blower fan, with reality Existing low cost, Non-energy-consumption, can quick response power supply mode.
In order to realize foregoing invention purpose, the present invention is adopted the following technical scheme that:
A kind of electric power system of the yaw motor in blower fan, including, the yaw motor in cabin, with yaw motor The variable frequency drives of connection, the variable frequency drives are connected to be powered for yaw motor with power network, the top peace of the cabin Equipped with vertical axis aerogenerator, the vertical axis aerogenerator is connected by variable frequency drives with yaw motor, with electricity For yaw motor is powered during net power down.
Further, the variable frequency drives are provided with power network access interface, vertical axis aerogenerator access interface and driftage Motor access interface, the power network access interface and vertical axis aerogenerator access interface in parallel with yaw motor Access interface is connected.
Further, be provided with electric network power-fail trigger switch in the variable frequency drives, the electric network power-fail trigger switch with hang down D-axis wind-driven generator access interface is connected, and vertical axis aerogenerator access interface is connected in electric network power-fail with driftage electricity Machine access interface.
Further, the vertical axis aerogenerator is arranged on the wind wheel rear of wind-driven generator, vertical axis wind power generation Height of the height of machine less than the wind vane of wind-driven generator.
Further, brake gear is provided with the vertical axis aerogenerator, the brake gear is powered by power network, in electricity During net power down, the brake gear releases the braking action to vertical axis aerogenerator.
A kind of method of supplying power to of the electric power system of the yaw motor in blower fan, comprises the following steps:
The first step, judges that whether normally power network powers, and when powering normal, power network is powered for yaw motor, when power network falls When electric, vertical axis aerogenerator is connected with yaw motor;
Second step, vertical axis aerogenerator generates electricity, and for yaw motor is powered.
Further, in the first step, when power network is powered it is normal when, vertical axis aerogenerator be in braking state, work as electricity During net power down, the braking state of vertical axis aerogenerator is released.
Further, in second step, the alternating current that vertical axis aerogenerator is produced is first through variable frequency drives frequency conversion, transformation Treatment and supplied yaw motor, when vertical axis aerogenerator is powered, variable frequency drives regulation driftage rotating speed is supplied less than power network Rotating speed when electric, so that less power provides enough driftage moments of torsion.
After using technical solutions according to the invention, following beneficial effect is brought:
Present invention eliminates the standby power system of the yaw motor in original wind-driven generator, vertical-shaft wind hair is changed to Motor generally, need to just start driftage as the stand-by power supply of yaw motor when mainly causing electric network power-fail by violent typhoon Motor stand-by power supply, the present invention in vertical axis aerogenerator can effectively using the energy of typhoon for yaw motor is powered, Standby fossil fuel or battery are needed not rely on, therefore power-on time can be identical with the action time of typhoon, not by energy storage Not enough limitation, and vertical axis aerogenerator low cost, it is lightweight, install and easy to maintenance, effectively reduce enterprise Cost, brings larger economic benefit.
Brief description of the drawings
Fig. 1:Structural representation of the invention;
Fig. 2:Catenation principle figure of the invention;
Wherein:1st, cabin 2, wheel hub 3, wind wheel 4, tower 5, yaw motor 6, main spindle box 7, speed-changing gear box 8, Generator 9, variable frequency drives 10, vertical axis aerogenerator 11, power network access interface 12, vertical axis aerogenerator connect Inbound port 13, yaw motor access interface 14, fixed seat 15, main shaft 16, blade 17, wind vane.
Specific embodiment
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, wind-driven generator, typically may include, tower 4, the cabin 1 in tower 4, installed in cabin The wheel hub 2 and wind wheel 3 of 1 front side, main spindle box 6, speed-changing gear box 7 and generator 8, the top outside cabin 1 are provided with cabin 1 Wind vane 17 is provided with, the rotating shaft of the generator 8 is connected by speed-changing gear box 7 and main spindle box 6 with wheel hub 2, when wind wheel 3 rotates Drive the rotating shaft rotary electrification of generator 8.
A kind of electric power system of the yaw motor in blower fan, is installed in above-mentioned wind-driven generator, including, installed in cabin Yaw motor 5 in 1, the variable frequency drives 9 being connected with yaw motor 5, the variable frequency drives 9 and power network are connected to as inclined Avionics machine 5 is powered.Yaw motor 5 drives the integral-rotation of cabin 1, makes wind wheel 3 all the time in state windward, so as to when generating electricity most Limits ground absorbs wind energy, minimum by wind load when strong wind cuts out full feathering state.Vertical axis is also equipped with the top of cabin 1 Wind-driven generator 10, the vertical axis aerogenerator 10 is connected by variable frequency drives 9 with yaw motor 5, is fallen with power network When electric, vertical axis aerogenerator 10 is as stand-by power supply for yaw motor 5 is powered.
The vertical axis aerogenerator 10 is arranged on the rear of wind wheel 3 of wind-driven generator and the front of wind vane 17, with The influence to wind wheel 3 is reduced, to reduce the influence to wind vane 17, the height of vertical axis aerogenerator 10 is less than wind vane 17 Height.
As shown in Fig. 2 the variable frequency drives 9 are provided with power network access interface 11, vertical axis aerogenerator access interface 12 and yaw motor access interface 13, the power network access interface 11 and vertical axis aerogenerator access interface 12 are with parallel Mode is connected with yaw motor access interface 13.The alternating current come from power network or the conveying of vertical axis aerogenerator 10 drives through frequency conversion The dynamic internal circuit treatment and supplied yaw motor 5 of device 7, enables the normal work of yaw motor 5.
Electric network power-fail trigger switch is provided with the variable frequency drives 9, the electric network power-fail trigger switch includes motion end And control end, motion end connects with vertical axis aerogenerator access interface 12, control end and line series, in electric network power-fail Motion end connects vertical axis aerogenerator access interface 12 and yaw motor access interface 13.Electric network power-fail trigger switch can be with Using contactor, wherein, its control end is coil, and motion end is normally-closed contact, and normally-closed contact connects with vertical axis aerogenerator Inbound port 12 is connected, the coil and line series of contactor, and when power network is powered, coil obtains electric, and normally-closed contact disconnects, vertical axis Wind-driven generator 10 is disconnected with yaw motor 5, and when electric network power-fail, coil losing electricity, normally-closed contact closure makes vertical shaft wind Power generator 10 is connected with yaw motor 5, realizes power supply connection.
Preferably, brake gear is provided with the vertical axis aerogenerator 10, the brake gear is powered by power network, During electric network power-fail, the brake gear releases the braking action to vertical axis aerogenerator 10.When power network powers normal, hang down D-axis wind-driven generator 10 is locked by brake gear, will not rotate, to avoid the abrasion of its part, only after electric network power-fail, Vertical axis aerogenerator 10 can just be rotated, for generating electricity.The brake gear is existing vertical axis aerogenerator 10 The brake gear of interior installation, its concrete structure is not described in detail herein.
General fan yaw speed is relatively low, and the power of yaw motor 5 is smaller, to ensure the normal operation of yaw motor 5, institute State the rated power of the rated generation power preferably greater than yaw motor 5 of vertical axis aerogenerator 10, vertical axis wind power generation The generated output of machine 10 is changed greatly by air speed influence, because vertical axis aerogenerator of the invention 10 is usually in typhoon day Conductance is just started working in the case of causing electric network power-fail, and in this case, the rotating speed of vertical axis aerogenerator 10 is generally possible to Rated speed is reached, i.e., is generated electricity with rated power, even if vertical-axis generators 10 are unable to reach driftage rated power supply, yaw motor 5 still can be exported with constant torque, yawing velocity be reduced, to reduce power demand.
Preferably, the vertical axis aerogenerator 10 is using generating efficiency lift vertical shaft wind-power electricity generation higher Machine, the type vertical axis aerogenerator has preferable aerodynamic performance.The vertical axis aerogenerator 10 typically may be used Including, positioned at the fixed seat 14 of bottom, change gear box and generator are installed in fixed seat 14, rotated with fixed seat 14 and be connected Main shaft 15, the periphery of main shaft 15 is installed with multiple blades 16, and main shaft 15 is connected by change gear box with alternator shaft Connect, fixed seat 14 can be bolted on the top of cabin 1.The main shaft 15 of vertical axis aerogenerator 10 and blower fan tower barrel 4 Diameter parallel.
A kind of method of supplying power to of the electric power system of the yaw motor in blower fan, comprises the following steps:
The first step, judges that whether normally power network powers, and when powering normal, power network is powered for yaw motor 5, when power network falls When electric, vertical axis aerogenerator 10 is connected with yaw motor 5;
Second step, vertical axis aerogenerator 10 generates electricity, and for yaw motor 5 is powered.
Specifically, in the first step, when power network is powered it is normal when, vertical axis aerogenerator 10 be in braking state, together When vertical axis aerogenerator 10 be off with the connection of yaw motor 5, power network is directly inclined by variable frequency drives 9 Avionics machine 5 is powered.When electric network power-fail, generally violent typhoon blows power network, power network is disconnected with wind power generating set, this When, the braking state of vertical axis aerogenerator 10 is released, and vertical axis aerogenerator 10 connects with the power supply of yaw motor 5 Connect and be switched on.
In second step, vertical axis aerogenerator 10 produces alternating current under wind-force effect, and first through variable frequency drives 9 Frequency conversion, transformation treatment and supplied yaw motor 5, when vertical axis aerogenerator 10 is powered, the regulation driftage of variable frequency drives 9 turns Rotating speed when speed is powered less than power network, so that less power provides enough driftage moments of torsion.The supply voltage of general yaw motor 5 It is 690V, frequency is 50/60Hz, therefore, the voltage of the output of variable frequency drives 9 mutually should be 690V, 50/60Hz with frequency.Driftage Motor 5 still with normal work, and can adjust the position of cabin 1 in the case where vertical axis aerogenerator 10 is powered, and make wind Wheel 3 is directed at wind direction, to reduce the damage that typhoon is caused to wind-driven generator.
Exception, same principle can also be powered using vertical axis aerogenerator for other devices on wind-driven generator, Such as, it is that pitch motor is powered, its method of supplying power to is identical with the method for supplying power to of yaw motor.
The above is embodiments of the present invention, it is noted that for the ordinary skill in the art, not Depart under the premise of the principle of the invention, various deformation and improvement can also be made, this should also be considered as protection scope of the present invention.

Claims (9)

1. the electric power system of the yaw motor in a kind of blower fan, including, the yaw motor in cabin connects with yaw motor The variable frequency drives for connecing, the variable frequency drives are connected to be powered for yaw motor with power network, it is characterised in that:The cabin Top vertical axis aerogenerator is installed, the vertical axis aerogenerator is connected by variable frequency drives with yaw motor Connect, with electric network power-fail as yaw motor is powered.
2. the electric power system of the yaw motor in a kind of blower fan according to claim 1, it is characterised in that:The frequency conversion is driven Dynamic device is provided with power network access interface, vertical axis aerogenerator access interface and yaw motor access interface, and the power network is accessed Port and vertical axis aerogenerator access interface are connected with yaw motor access interface in parallel.
3. the electric power system of the yaw motor in a kind of blower fan according to claim 2, it is characterised in that:The frequency conversion is driven Electric network power-fail trigger switch, the electric network power-fail trigger switch and vertical axis aerogenerator access interface string are provided with dynamic device Connection, and vertical axis aerogenerator access interface and yaw motor access interface are connected in electric network power-fail.
4. the electric power system of the yaw motor in a kind of blower fan according to claim 1, it is characterised in that:The vertical axis Wind-driven generator is arranged on the wind wheel rear of wind-driven generator, the wind of the height less than wind-driven generator of vertical axis aerogenerator To target highly.
5. the electric power system of the yaw motor in a kind of blower fan according to claim 4, it is characterised in that:The vertical axis Brake gear is provided with wind-driven generator, the brake gear is powered by power network, in electric network power-fail, the brake gear is released To the braking action of vertical axis aerogenerator.
6. the electric power system of the yaw motor in a kind of blower fan according to claim 1, it is characterised in that:The vertical axis Wind-driven generator is lifting-force type vertical-axis wind power generator.
7. the method for supplying power to of the electric power system of the yaw motor in a kind of blower fan as described in claim any one of 1-6, it is special Levy and be, comprise the following steps:
The first step, judges that whether normally power network powers, and when powering normal, power network is powered for yaw motor, when electric network power-fail, Vertical axis aerogenerator is connected with yaw motor;
Second step, vertical axis aerogenerator generates electricity, and for yaw motor is powered.
8. the method for supplying power to of the electric power system of the yaw motor in a kind of blower fan according to claim 7, it is characterised in that: In the first step, when power network is powered it is normal when, vertical axis aerogenerator be in braking state, when electric network power-fail, vertical axis The braking state of wind-driven generator is released.
9. the method for supplying power to of the electric power system of the yaw motor in a kind of blower fan according to claim 7, it is characterised in that: In second step, the alternating current that vertical axis aerogenerator is produced first is gone off course through variable frequency drives frequency conversion, transformation treatment and supplied Motor.
CN201610390629.0A 2016-06-06 2016-06-06 The electric power system and method for supplying power to of a kind of yaw motor in wind turbine Expired - Fee Related CN106930899B (en)

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CN201610390629.0A CN106930899B (en) 2016-06-06 2016-06-06 The electric power system and method for supplying power to of a kind of yaw motor in wind turbine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107800190A (en) * 2017-10-23 2018-03-13 新疆金风科技股份有限公司 Wind power generating set backup power supply system and its control method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005054752A (en) * 2003-08-07 2005-03-03 Fuji Heavy Ind Ltd Horizontal-axis wind-turbine and its control method
CN201810491U (en) * 2010-10-14 2011-04-27 冯忠昌 Novel wind energy and luminous energy complementary generator device
KR20130058209A (en) * 2011-11-25 2013-06-04 삼성중공업 주식회사 Wind turbine having sub-wind turbine
KR20160024727A (en) * 2014-08-25 2016-03-07 전정석 Wind power generating apparatus using vertizontal type impeller
CN205669458U (en) * 2016-06-06 2016-11-02 北京普华亿能风电技术有限公司 A kind of electric power system of the yaw motor in blower fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005054752A (en) * 2003-08-07 2005-03-03 Fuji Heavy Ind Ltd Horizontal-axis wind-turbine and its control method
CN201810491U (en) * 2010-10-14 2011-04-27 冯忠昌 Novel wind energy and luminous energy complementary generator device
KR20130058209A (en) * 2011-11-25 2013-06-04 삼성중공업 주식회사 Wind turbine having sub-wind turbine
KR20160024727A (en) * 2014-08-25 2016-03-07 전정석 Wind power generating apparatus using vertizontal type impeller
CN205669458U (en) * 2016-06-06 2016-11-02 北京普华亿能风电技术有限公司 A kind of electric power system of the yaw motor in blower fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107800190A (en) * 2017-10-23 2018-03-13 新疆金风科技股份有限公司 Wind power generating set backup power supply system and its control method

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