CN201496204U - Grid-connected hybrid-driven variable-pitch variable-speed constant frequency wind turbine generator system - Google Patents

Grid-connected hybrid-driven variable-pitch variable-speed constant frequency wind turbine generator system Download PDF

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Publication number
CN201496204U
CN201496204U CN2009201009582U CN200920100958U CN201496204U CN 201496204 U CN201496204 U CN 201496204U CN 2009201009582 U CN2009201009582 U CN 2009201009582U CN 200920100958 U CN200920100958 U CN 200920100958U CN 201496204 U CN201496204 U CN 201496204U
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China
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variable
generator
pitch
grid
flange
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Expired - Lifetime
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CN2009201009582U
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Chinese (zh)
Inventor
高亚春
刘玉新
王勇
王晓辉
许社忠
丁常宝
董乾哲
林志强
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Harbin Hafei Industry Co Ltd
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Harbin Hafei Industry Co Ltd
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    • 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

Abstract

The utility model provides a grid-connected hybrid-driven variable-pitch variable-speed constant frequency wind turbine generator system which is developed aiming at the two machine types (a direct-driven and a double-fed type) popular in China at present. The grid-connected hybrid-driven variable-pitch variable-speed constant frequency wind turbine generator system comprises an impeller system, a transmission system, a supporting system, a yaw system, a hydraulic system, a temperature control system and an electrical system, wherein the impeller system is directly connected with a planet carrier flange for a speed increasing box for the transmission system and comprises three blades, a hub and a variable pitch controlling unit, a generator stator casing of the transmission system and an annular gear casing of the speed increasing box are fixed on a rotary support of the supporting system respectively through a front flange and a rear flange, and the generator adopts a permanent-magnet synchronous generator. By adopting the primary planetary gear box and the low-speed permanent-magnet synchronous generator, the utility model has the advantages of small size, simple structure, less machine set maintenance items, low maintenance cost and no special hoisting equipment; and the machine set is provided with sufficient space to meet the requirements of maintenance and ergonomics, and all the components have the optimum maintainabilities.

Description

The grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set
(1) technical field
The utility model relates to wind generating technology, is exactly a kind of grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set specifically.
(2) background technique
Wind energy is one of human energy that uses the earliest, and far away from B.C. 2000, sailing boat and windmill appearred in states such as Egypt, Persian, and Middle Ages, Holland had the horizontal axis windmill that is used for irrigation and drainage with the U.S..China is one of country that utilizes the earliest in the world wind energy, and before apart from modern 1800, just there is the record of water pumping of the wind-force in China.The P La Kuer of Denmark in 1890 has succeeded in developing wind-driven generator, and Denmark had built up a hundreds of small-size wind power-generating station in 1908.From twentieth century first arrival later 1960s, some countries still are in the small-scale stage of utilizing to the exploitation of wind energy resources.Along with the employing and the power system development of large-scale water power, fired power generating unit, in the development in the past in 1970, Large-scale Wind Turbines is eliminated gradually because of cost height and poor reliability, all stopped running in succession to later 1960s.The experimental study in this stage shows, in these, large-scale unit is general still feasible technically, it is laid a good foundation for the great development in later stage nineteen seventies.Since 1980, the wind-power electricity generation machine technology moves towards commercialization day by day in the world.Main unit capacity has 300kW, 600kW, 750kW, 850kW, 1MW, 2MW.Denmark had built up first marine wind electric field in the world at Vindeby in 1991, formed total installed capacity 4.95MW by 11 Denmark's Bonus 450kW units.Holland, Sweden, Britain have built up the marine wind electric field of oneself in succession subsequently.
At present, China's grid type wind power generating set mainly contains two kinds of types: a kind of is direct-driving type; Another kind is double-fed. direct-drive fan has maintainable preferably, but the motor progression of direct-driving type is many, and quality is big, and it is overweight to exist the complete machine cabin, and load-up condition is poor, installs, transports some inconvenient factors such as difficulty.The double-fed while has gearbox fault rate height, the deficiency that maintenance cost is big again.
(3) summary of the invention
It is a kind of at the popular direct-driving type of present China and a kind of grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set of double-fed two kinds of types exploitation that the purpose of this utility model is to provide.
The purpose of this utility model is achieved in that it is by impeller system, transmission system, support system, yaw system, hydraulic system, temperature control system and electrical system are formed, impeller system directly is connected with the speedup box carrier flange of transmission system, impeller system comprises three blades, wheel hub and variable pitch control unit, the generator unit stator shell of transmission system and speedup box ring gear shell are fixed on the rotary support of support system in the mode of forward flange and rear flange respectively, generator is the synchronous permanent-magnet generator, generator is an inner rotor core, the internal rotor front axle connects with external splines with gearbox output shaft, the rear axle external part is installed brake disc, the hollow axis hole of speedup box and generator passes the slip ring cable, be used to support the transmission system except that rotary support in the support system, also have underframe to be used to support the control cabinet of electrical system, cable, the temperature-controlling cabinet of temperature control system and pipeline.
The utility model also has following technical characteristics:
(1) the preceding facade of its structure of rotary support in the described support system is in vertical direction with 4 ° of angles, bilateral facade flange and flange in the bottom are arranged, internal flange is installed generator, external flanges is installed speedup box, constitute transmission system, make the impeller and the transmission system that are installed on the speedup box planet carrier be in straight line, and from the horizontal by 4 ° of angles, flange in the bottom is installed on the driftage bearing inner race.
(2) described impeller system speedup box planet carrier direct and in the transmission system is connected, speedup box output terminal sun gear is connected with spline housing with generator amature, speedup box has a hollow shaft to be connected with the generator center, generator hollow shaft output terminal connects the conducting slip ring rotor, the slip ring stator is fixed on the generator unit stator shell by slip ring spider, and the slip ring cable passes hollow axis hole.
(3) described yaw system comprises driftage motor, yawing reducer, driftage bearing, driftage lock and driftage brake disc, the yaw axis bearing outer-ring is connected with the tower tube, inner ring is connected with rotary support, yawing reducer is fixed on the rotary support, its output gear and the engagement of bearing outer ring external tooth, the driftage motor connects the yawing reducer gear, and the driftage lock is fixed on the rotary support, and the driftage brake disc is fixed between bearing outer ring and the tower tube.
(4) described variable pitch control unit comprises change oar drive unit and variable blade control system, becoming the oar drive unit forms by becoming oar motor and variable pitch speed reducer, wherein fixedly connected with wheel hub in the pitch variable bearings outer ring, bearing inner race is connected with blade, variable pitch speed reducer is connected with wheel hub, its output gear and the engagement of bearing inner race internal tooth, variable blade control system is positioned at wheel hub inside.
(5) described electrical system is made up of cat head cabinet, tower base cabinet, system control unit and cable, and cat head cabinet, tower base cabinet are connected with cable with system control unit respectively.
The utility model adopts primary planet pinion case and low-speed permanent-magnet generator, has improved system reliability and wind energy utilization to greatest extent.Adopt ripe primary planet pinion case and low-speed permanent-magnet synchronous generator, it is the core of the technology of partly directly driving, it combines the advantage of the technology of directly driving and double-fed technology, and the low speed increasing ratio of single gear case has been avoided many risks of multi-stage gear case high speed level; Low-speed permanent-magnet synchronous generator volume is less, simple in structure, has guaranteed the reliability of whole blower fan.The Transmitted chains that single-stage planetary gear-box and low-speed permanent-magnet synchronous generator are formed, medium tache is little, the mechanical transmission loss is little; Cooperate the full power frequency variator, speed adjustable range is very wide, can satisfy the requirement of each wind friction velocity lower hub optimum speed of blower fan, and blade is under the operating conditions of best tip speed ratio all the time.Adopt bilateral IGBT full power liquid cooling four-quadrant frequency converter, conversion efficiency height, power output smoothing when being incorporated into the power networks; Cooperate inner wave filter, harmonic distorsion is little; And can carry out reactive-load compensation according to customer requirements, and can satisfy up-to-date electrical network low voltage and pass through requirement, be fit to various electrical network standards.The utility model grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set, Maintenance Significant Items is few, maintenance cost is low, need not special hanging device, the attendant is not had specific (special) requirements, unit has abundant space to satisfy maintenance and ergonomics requirement, and all parts have best maintainability.
(4) description of drawings
Fig. 1 is a structure front view of the present utility model;
Fig. 2 is a structure plan view of the present utility model;
Fig. 3 is A-A view among Fig. 2, i.e. yaw system structural drawing;
Fig. 4 is a rotary support front view of the present utility model.
(5) embodiment
The utility model is described in further detail for example below in conjunction with accompanying drawing.
Embodiment 1: in conjunction with Fig. 1-Fig. 4, the utility model grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set, it is by impeller system, transmission system, support system, yaw system, hydraulic system, temperature control system and electrical system are formed, impeller system directly is connected with the speedup box carrier flange of transmission system, impeller system comprises three blades, wheel hub and variable pitch control unit, the generator unit stator shell of transmission system and speedup box ring gear shell are fixed on the rotary support of support system in the mode of forward flange and rear flange respectively, generator is the synchronous permanent-magnet generator, generator is an inner rotor core, the internal rotor front axle connects with external splines with gearbox output shaft, the rear axle external part is installed brake disc, the hollow axis hole of speedup box and generator passes the slip ring cable, be used to support the transmission system except that rotary support in the support system, also have underframe to be used to support the control cabinet of electrical system, cable, the temperature-controlling cabinet of temperature control system and pipeline.
The utility model also has following technical characteristics:
(1) the preceding facade of its structure of rotary support in the described support system is in vertical direction with 4 ° of angles, bilateral facade flange and flange in the bottom are arranged, internal flange is installed generator, external flanges is installed speedup box, constitute transmission system, make the impeller and the transmission system that are installed on the speedup box planet carrier be in straight line, and from the horizontal by 4 ° of angles, flange in the bottom is installed on the driftage bearing inner race.
(2) described impeller system speedup box planet carrier direct and in the transmission system is connected, speedup box output terminal sun gear is connected with spline housing with generator amature, speedup box has a hollow shaft to be connected with the generator center, generator hollow shaft output terminal connects the conducting slip ring rotor, the slip ring stator is fixed on the generator unit stator shell by slip ring spider, and the slip ring cable passes hollow axis hole.
(3) described yaw system comprises driftage motor, yawing reducer, driftage bearing, driftage lock and driftage brake disc, the yaw axis bearing outer-ring is connected with the tower tube, inner ring is connected with rotary support, yawing reducer is fixed on the rotary support, its output gear and the engagement of bearing outer ring external tooth, the driftage motor connects the yawing reducer gear, and the driftage lock is fixed on the rotary support, and the driftage brake disc is fixed between bearing outer ring and the tower tube.
(4) described variable pitch control unit comprises change oar drive unit and variable blade control system, becoming the oar drive unit forms by becoming oar motor and variable pitch speed reducer, wherein fixedly connected with wheel hub in the pitch variable bearings outer ring, bearing inner race is connected with blade, variable pitch speed reducer is connected with wheel hub, its output gear and the engagement of bearing inner race internal tooth, variable blade control system is positioned at wheel hub inside.
(5) described electrical system is made up of cat head cabinet, tower base cabinet, system control unit and cable, and cat head cabinet, tower base cabinet are connected with cable with system control unit respectively.
Embodiment 2: in conjunction with Fig. 1-Fig. 4, the utility model grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set, wheel hub in the described impeller system (4) directly is connected with speedup box planet carrier (30) flange of transmission system, fixedly connected with wheel hub (4) in pitch variable bearings in the impeller system (3) outer ring, bearing inner race is connected with blade (5), variable pitch speed reducer (6) is connected with wheel hub (4), the engagement of its output gear and pitch variable bearings (3) inner ring internal tooth, become oar motor (2) and drive the variable pitch speed reducer gear, blade (5) is rotated.Variable pitch control unit (1) is installed in wheel hub (4) inside.The generator unit stator shell (12) of transmission system and speedup box ring gear shell (7) are fixed on the rotary support of support system in the mode of forward flange and rear flange respectively, speedup box planet carrier (30) drives planet wheel (29) and drives the speedup box sun gear, the sun gear output terminal links to each other with generator amature (9) with spline housing (9), speedup box hollow shaft (8) is fixed on the speedup box planet carrier (30), hollow shaft is connected with slip ring (24) rotor, the slip ring stator is connected on the generator unit stator shell (11) with slip ring spider (25), mechanism of power generation Moving plate (26) is installed on the generator amature, generator brake (14) is installed on the generator unit stator shell (11), other supporting mechanisms (20) are installed on the rotary support, temperature-controlling cabinet, the cat head cabinet, frequency variator and temperature control system external cooler are installed on other supporting mechanisms (20), generator cooling line (21) is connected between temperature-controlling cabinet (19) and the generator, frequency variator cooling line (22) is connected between frequency variator and the temperature-controlling cabinet (19), and temperature control system external refrigeration pipeline (36) is connected between temperature control system external cooler (37) and the temperature-controlling cabinet.Hydraulic station (23) is installed on the rotary support (10), generator brake hydraulic tube (15) is connected between hydraulic station (23) and the generator brake (14), driftage lock (35) is installed in rotary support (10) bottom, and driftage lock hydraulic pipe line (40) is connected between hydraulic station (23) and the driftage lock (35).Driftage bearing (27) outer ring in the yaw system is connected with tower tube (32), inner ring is connected with rotary support (10), yawing reducer (38) is fixed on the rotary support (10), its output gear and the engagement of bearing outer ring external tooth, driftage motor (34) drives reducer gear rotates rotary support (10), and driftage lock (35) is fixed on the rotary support, and driftage brake disc (39) is fixed between bearing outer ring and the tower tube (32), when needing braking, driftage lock (35) clamps brake disc.In the automatical control system between generator and frequency variator cable (13) be connected between generator and the frequency variator, cable (31) is connected between frequency variator and the tower base cabinet (33) between frequency variator and tower base cabinet, and each system's actuating cable (18) is connected between cat head cabinet (17) and each system.

Claims (6)

1. grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set, it is by impeller system, transmission system, support system, yaw system, hydraulic system, temperature control system and electrical system are formed, it is characterized in that: impeller system directly is connected with the speedup box carrier flange of transmission system, impeller system comprises three blades, wheel hub and variable pitch control unit, the generator unit stator shell of transmission system and speedup box ring gear shell are fixed on the rotary support of support system in the mode of forward flange and rear flange respectively, generator is a magneto alternator, generator is an inner rotor core, the internal rotor front axle connects with external splines with gearbox output shaft, the rear axle external part is installed brake disc, the hollow axis hole of speedup box and generator passes the slip ring cable, be used to support the transmission system except that rotary support in the support system, also have underframe to be used to support the control cabinet of electrical system, cable, the temperature-controlling cabinet of temperature control system and pipeline.
2. grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set according to claim 1, it is characterized in that: facade is in vertical direction with 4 ° of angles before its structure of the rotary support in the described support system, bilateral facade flange and flange in the bottom are arranged, internal flange is installed generator, external flanges is installed speedup box, constitute transmission system, make the impeller and the transmission system that are installed on the speedup box planet carrier be in straight line, and from the horizontal by 4 ° of angles, flange in the bottom is installed on the driftage bearing inner race.
3. grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set according to claim 1, it is characterized in that: described impeller system speedup box planet carrier direct and in the transmission system is connected, speedup box output terminal sun gear is connected with spline housing with generator amature, speedup box has a hollow shaft to be connected with the generator center, generator hollow shaft output terminal connects the conducting slip ring rotor, the slip ring stator is fixed on the generator unit stator shell by slip ring spider, and the slip ring cable passes hollow axis hole.
4. grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set according to claim 1, it is characterized in that: described yaw system comprises driftage motor, yawing reducer, driftage bearing, driftage lock and driftage brake disc, the yaw axis bearing outer-ring is connected with the tower tube, inner ring is connected with rotary support, yawing reducer is fixed on the rotary support, its output gear and the engagement of bearing outer ring external tooth, the driftage motor connects the yawing reducer gear, the driftage lock is fixed on the rotary support, and the driftage brake disc is fixed between bearing outer ring and the tower tube.
5. grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set according to claim 1, it is characterized in that: described variable pitch control unit comprises change oar drive unit and variable blade control system, becoming the oar drive unit forms by becoming oar motor and variable pitch speed reducer, wherein fixedly connected with wheel hub in the pitch variable bearings outer ring, bearing inner race is connected with blade, variable pitch speed reducer is connected with wheel hub, its output gear and the engagement of bearing inner race internal tooth, and variable blade control system is positioned at wheel hub inside.
6. grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind power generating set according to claim 1, it is characterized in that: described electrical system is made up of cat head cabinet, tower base cabinet, system control unit and cable, and cat head cabinet, tower base cabinet are connected with cable with system control unit respectively.
CN2009201009582U 2009-09-25 2009-09-25 Grid-connected hybrid-driven variable-pitch variable-speed constant frequency wind turbine generator system Expired - Lifetime CN201496204U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102354125A (en) * 2011-10-11 2012-02-15 国电联合动力技术有限公司 Comprehensive simulation system for low-voltage passing of wind turbine and method
CN102562453A (en) * 2012-03-01 2012-07-11 国电联合动力技术有限公司 Pitch control method of variable-speed constant-frequency wind driven power generator at rated revolution speed stage
CN101660499B (en) * 2009-09-25 2012-09-26 哈尔滨哈飞工业有限责任公司 Grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind turbine generator set
CN103306901A (en) * 2012-03-09 2013-09-18 齐同庆 Horizontal shaft cable-twisting-free wind driven generator
CN105863957A (en) * 2016-05-17 2016-08-17 哈尔滨工业大学 Variable-pitch high-power vertical axis wind power generating device and pneumatic starting-stopping control method
CN106593775A (en) * 2016-12-12 2017-04-26 江苏金风科技有限公司 Wind power generation set
CN107255065A (en) * 2017-07-07 2017-10-17 北京金风科创风电设备有限公司 Wind power generating set
CN111120204A (en) * 2019-12-20 2020-05-08 大唐可再生能源试验研究院有限公司 Independent variable-pitch four-quadrant operation control method for wind generating set

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101660499B (en) * 2009-09-25 2012-09-26 哈尔滨哈飞工业有限责任公司 Grid-connected hybrid-driven variable-pitch variable-speed constant-frequency wind turbine generator set
CN102354125A (en) * 2011-10-11 2012-02-15 国电联合动力技术有限公司 Comprehensive simulation system for low-voltage passing of wind turbine and method
CN102562453A (en) * 2012-03-01 2012-07-11 国电联合动力技术有限公司 Pitch control method of variable-speed constant-frequency wind driven power generator at rated revolution speed stage
CN102562453B (en) * 2012-03-01 2013-09-04 国电联合动力技术有限公司 Pitch control method of variable-speed constant-frequency wind driven power generator at rated revolution speed stage
CN103306901A (en) * 2012-03-09 2013-09-18 齐同庆 Horizontal shaft cable-twisting-free wind driven generator
CN103306901B (en) * 2012-03-09 2015-10-14 齐同庆 Horizontal shaft cable-twisting-free wind driven generator
CN105863957A (en) * 2016-05-17 2016-08-17 哈尔滨工业大学 Variable-pitch high-power vertical axis wind power generating device and pneumatic starting-stopping control method
CN105863957B (en) * 2016-05-17 2019-01-08 哈尔滨工业大学 A kind of variablepiston high-power vertical shaft wind power generation plant and pneumatic start-up and shut-down control method
CN106593775A (en) * 2016-12-12 2017-04-26 江苏金风科技有限公司 Wind power generation set
CN107255065A (en) * 2017-07-07 2017-10-17 北京金风科创风电设备有限公司 Wind power generating set
CN111120204A (en) * 2019-12-20 2020-05-08 大唐可再生能源试验研究院有限公司 Independent variable-pitch four-quadrant operation control method for wind generating set
CN111120204B (en) * 2019-12-20 2021-06-18 大唐可再生能源试验研究院有限公司 Independent variable-pitch four-quadrant operation control method for wind generating set

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