CN201916118U - Wind generating set and pitch-change control device thereof - Google Patents
Wind generating set and pitch-change control device thereof Download PDFInfo
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- CN201916118U CN201916118U CN2011200200300U CN201120020030U CN201916118U CN 201916118 U CN201916118 U CN 201916118U CN 2011200200300 U CN2011200200300 U CN 2011200200300U CN 201120020030 U CN201120020030 U CN 201120020030U CN 201916118 U CN201916118 U CN 201916118U
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- cabinet
- generating set
- control gear
- power supply
- power generating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a pitch-change control device of a wind generating set, which comprises a cabinet (21), a controller, three drivers (22) and a backup power source (23). The drivers (22) are disposed on lateral plates of the cabinet (21), the controller and the backup power source (23) are arranged inside the cabinet (21), and the controller, the drivers (22) and the backup power source (23) are connected with each other via connecting cables. The pitch-change control device is only provided with one cabinet so as to greatly reduce occupied space and dead weight, reduces the number of elements and the amount of connecting pipelines due to the fact that the controller, the drivers and the backup power source are disposed on the cabinet, improves interchangeability of the backup power source, and enhances operational reliability of the wind generating set. The utility model further discloses the wind generating set.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of feather control gear that is used for wind power generating set.The utility model also relates to a kind of wind power generating set that comprises above-mentioned feather control gear.
Background technique
Along with the fast development of China's economic construction, electric energy is increasing to the influence of economic construction and people life, and wind-power electricity generation also more and more is subject to people's attention as a kind of in the multiple generation mode.
Wind-power electricity generation utilizes wind power generating set exactly, and the kinetic energy of keeping watch is transformed into mechanical energy, mechanical energy is converted into a kind of generation mode of electric energy again.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical wind power generating set in the prior art.
As shown in Figure 1, wind power generating set of the prior art comprises wind wheel 13, generator 12 and tower tube 11, in the working procedure, wind acts on the blade 131 of wind wheel 13, produce aerodynamic moment, the root of blade 131 passes to wheel hub with moment of torsion, and then drives the gear in main shaft, the gearbox and the running shaft rotation of generator, produce electric energy, tower tube 11 is mainly used in wind wheel 13 and the generator 12 that supports wind power generating set.
Because the wind speed of occurring in nature in the working procedure, if the pitch angle state of the blade of wind power generating set is constant all the time, will inevitably make the rotating speed of input constantly change in variation constantly, and then influence the quality of the energy that generates electricity; For the active force that wind is affacted on the blade keeps constant substantially, and then the rotating speed substantially constant of assurance input, just need change the pitch angle of the blade 131 of wind power generating set according to the size of wind speed, variable propeller pitch device is provided with in order to realize above-mentioned target; When wind speed changes, the bearing inner race 22 of pitch variable bearings 132 rotates under the effect of device at the change slurry, drives blade 131 and rotates, and realizes the change of the pitch angle of blade 131, guarantee the constant input of rotating speed, improve the generate electricity stability of energy of wind power generating set.
Except above-mentioned functions, in the process that wind power generating set starts, variable propeller pitch device can also be controlled the angle of blade, relies on wind-force to start voluntarily to realize wind power generating set; During normal or emergency shutdown, variable propeller pitch device control blade forwards the predetermined safe position to, realizes the aerodynamic force brake, guarantees that the safety of blower fan is stopped transport in wind power generating set.
Since electric variable pitch apart from device have that torque force is big, speed of response is fast, advantages such as compact structure, energy consumption are low, operation peace and quiet, and obtained using widely.
In order to realize accurately becoming oar, electric variable pitch comprises the electric variable pitch distance control apparatus apart from device, and the structure of electric variable pitch distance control apparatus of the prior art mainly contains three kinds:
First kind: comprise 1 central control cabinet, 3 change oar motor driving cabinets and 3 standby power supply cabinets, be provided with controller in central authorities' control cabinet, become in the oar motor driving cabinet and be provided with driver, be used to drive motor that electric energy is provided, the standby power supply that promising motor provides stand-by electric energy is set in the standby power supply cabinet; Above-mentioned central control cabinet, change oar motor driving cabinet and standby power supply cabinet all are positioned in the wheel hub, volume is very big, space when making operation maintenance in the wheel hub is very little, and weight is heavier, in addition, central authorities' control cabinet, respectively become between oar motor driving cabinet and the standby power supply cabinet and be connected with signaling line by power line, rat tail and connection interface are more, and fault takes place easily.
Second kind: comprise 3 change oar motor driving cabinets and 3 standby power supply cabinets, cancelled the central control cabinet of independent setting, similarly, be provided with driver in the change oar motor driving cabinet, be used to drive motor that electric energy is provided; The standby power supply that promising motor provides stand-by electric energy is set in the standby power supply cabinet, and controller is arranged at one in the above-mentioned change oar motor driving cabinet, each becomes oar motor driving cabinet and the standby power supply cabinet also is arranged in the wheel hub, has and the problem of first kind of electric variable pitch apart from the similar of device.
The third: only comprise 3 change oar motor driving cabinets, standby power supply and driver corresponding to same blade are arranged in the change oar motor driving cabinet, controller is arranged in 3 change oar motor driving cabinets, 3 change oar motor driving cabinets also are arranged in the wheel hub, volume is big although this kind mode can solve to a certain extent, the problem of Heavy Weight, but, each standby power supply provides electric energy for a drive motor independently, do not have interchangeability, and the problem of electric energy can not in time be provided when existing standby power supply to damage.
Therefore, how further to reduce electric variable pitch, reduce its weight, improve the interchangeability between each standby power supply simultaneously, improve the reliability of system, just become the present technical issues that need to address of those skilled in the art apart from the shared space of device.
The model utility content
The purpose of this utility model provides a kind of feather control gear of wind power generating set, this feather control gear has only a cabinet, thereby occupation space and the weight of self have been dwindled greatly, and controller, driver and standby power supply all are arranged on the cabinet, reduced the quantity of the number and the linking route of components and parts, improve the interchangeability of standby power supply, improved the reliability of wind power generating set work.Another purpose of the present utility model provides a kind of wind power generating set that comprises above-mentioned feather control gear.
For solving the problems of the technologies described above, the utility model provides a kind of feather control gear of wind power generating set, comprise cabinet, controller, three drivers and standby power supply, the number of described cabinet is one, each described driver all is arranged at the side plate of described cabinet, described controller and described standby power supply are arranged in the described cabinet, and described controller, described driver and described standby power supply are connected by conjunction cable.
Preferably, also comprise autocondensation formula air-conditioning, described autocondensation formula air-conditioning is installed on the side plate of described cabinet.
Preferably, also comprise reactance, described reactance is connected between the primary power supply and each described driver of described wind power generating set.
Preferably, also comprise mounting plate, described mounting plate is arranged at the inside of described cabinet, and offers a plurality of through holes, and described standby power supply is installed on described mounting plate.
Preferably, described driver is a frequency variator.
Preferably, described standby power supply is a ultracapacitor.
Preferably, the radiator of each described driver is positioned at the outside of described cabinet.
For solving the problems of the technologies described above, the utility model also provides a kind of wind power generating set, comprises blade and the feather control gear that is used to change blade angle, and described feather control gear is above-mentioned each described feather control gear.
The feather control gear of wind power generating set provided by the utility model, comprise cabinet, controller, three drivers and standby power supply, the number of cabinet is one, each driver all is arranged at the side plate of cabinet, controller and standby power supply are arranged in the cabinet, and controller, driver and standby power supply are connected by conjunction cable.Cabinet quantity reduces, and controller, three drivers and standby power supply all be arranged at above-mentioned cabinet, dwindled the volume of feather control gear, thereby has reduced the space in the wheel hub that the feather control gear takies, and has increased and has safeguarded the space; On the other hand, because controller, three drivers and standby power supply all are arranged at same cabinet, the line between each cabinet and the quantity of employed low-voltage component have just been significantly reduced, thereby reduced the manufacture cost of variable-pitch control system, and the minimizing of tie point also makes the number of fault point obtain minimizing, has reduced the operation and maintenance cost of variable-pitch control system.
In a kind of preferred implementation, the feather control gear of wind power generating set provided by the utility model also comprises autocondensation formula air-conditioning, and autocondensation formula air-conditioning is installed on the side plate of cabinet.The moisture that autocondensation formula air-conditioning not only can be produced in avoiding cooling procedure flows into extraneous, cause damage to each parts in the cabinet, and can be in external environment with the heat bulk storage that produces in the parts working procedure such as standby power supply in the cabinet, guarantee temperature and humidity constant in the cabinet, prevent that each parts operating temperature in the cabinet is too high and damage, simultaneously, also can not reduce the IP security level of cabinet, prolong the working life of each parts in the cabinet.
The beneficial effect of the beneficial effect of wind power generating set provided by the utility model and feather control gear is similar, does not repeat them here.
Description of drawings
Fig. 1 is the structural representation of a kind of typical wind power generating set in the prior art;
The structural representation of the feather control gear that Fig. 2 is provided for a kind of embodiment of the utility model;
Fig. 3 is the side view of feather control gear shown in Figure 2;
Fig. 4 is the rear view of feather control gear shown in Figure 2;
Fig. 5 is the plan view of feather control gear shown in Figure 2.
Embodiment
Core of the present utility model provides a kind of feather control gear of wind power generating set, this feather control gear has only a cabinet, thereby occupation space and the weight of self have been dwindled greatly, and controller, driver and standby power supply all are arranged on the cabinet, reduced the quantity of the number and the linking route of components and parts, improve the interchangeability of standby power supply, improved the reliability of wind power generating set work.Another core of the present utility model provides a kind of wind power generating set that comprises above-mentioned feather control gear.
In order to make those skilled in the art understand scheme of the present utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2 to Fig. 4, the structural representation of the feather control gear that Fig. 2 is provided for a kind of embodiment of the utility model; Fig. 3 is the side view of feather control gear shown in Figure 2; Fig. 4 is the rear view of feather control gear shown in Figure 2; Fig. 5 is the plan view of feather control gear shown in Figure 2.
In a kind of embodiment, the feather control gear of wind power generating set provided by the utility model, comprise cabinet 21, controller (not shown), three drivers 22 and standby power supply 23, wherein, the number of cabinet 21 is one, and is arranged in the wheel hub of wind power generating set, and each driver 22 all is arranged at the side plate of cabinet 21, controller and standby power supply 23 are arranged in the cabinet 21, and controller, driver 22 and standby power supply 23 are connected by conjunction cable.
For making things convenient for the setting of cabinet 21 in wheel hub, as shown in FIG., three drivers 22 can be arranged at respectively on the left and right side plate and lower side panel of cabinet 21, certainly, and upside, downside, left side and the right side that is meant up and down according to the cabinet of position shown in Figure 2 as herein described.
The primary power supply of wind power generating set provides the Ac of 400V for cabinet 21 three interior drivers 22 by slip ring, and provide the Ac of 400V for standby power supply 23, under normal circumstances, primary power supply 400V gives driver 22 power supplies, three drive motor of three driver 22 difference drive are to realize becoming oar.After the primary power supply power down, standby power supply 23 is DC bus powered by driver 22; Controller is mainly being born the information of handling standby power supply 23 and external sensor transmission that receives, and to the effect of the control of driver 22, such as: receive the signal be located at the blade place near switch, limit switch judge blade whether within the working zone, whether surpassed the working position, controller is controlled driver 22 through after the computing, thereby can adjust the change vane angle degree of each blade separately.
Concrete working condition is that 3 blades are subjected to 22 controls of three drivers respectively, wherein overdrive motor driving retarder, small gear and pivoting support ring gear of each blade pass rotates, the speed of driver 22 controlling and driving motors, the automatic change oar that each blade is continued between feather position, working position, and controller obtains the reference value of blade angle according to power, and driver 22 control blades become oar to the reference value position then.
Compare with three kinds of feather control gear of the prior art, the cabinet 21 that gets the feather control gear provided by the utility model has only one, quantity reduces greatly, and controller, three drivers 22 and standby power supply 23 all are arranged at above-mentioned cabinet 21, dwindled the volume of feather control gear, thereby reduced the interior space of wheel hub that the feather control gear takies, increased and safeguarded the space; On the other hand, because controller, three drivers 22 and standby power supply 23 all are arranged at same cabinet 21, just significantly reduce the line between each cabinet 21 and the quantity of employed low-voltage component and (needed three covers in the prior art, and the utility model only needs a cover to get final product), thereby reduced the manufacture cost of variable-pitch control system, and the minimizing of tie point also makes the number of fault point obtain minimizing, has reduced the operation and maintenance cost of variable-pitch control system.
In another kind of embodiment, the feather control gear of wind power generating set provided by the utility model also comprises autocondensation formula air-conditioning 24, and autocondensation formula air-conditioning 24 is installed on the side plate of cabinet 21.
Because autocondensation formula air-conditioning inside is provided with the electronics condenser/evaporator, the moisture that can avoid in the cooling procedure being produced flows into extraneous, therefore, can avoid because moisture enters cabinet 21 or wheel hub causes damage to each parts in cabinet 21 or the wheel hub, simultaneously can also be in external environment with the heat bulk storage that produces in standby power supply 23 working procedure such as parts such as grade in the cabinet 21, guarantee temperature and humidity constant in the cabinet 21, simultaneously, also can not reduce the IP security level of cabinet, prevent that each parts operating temperature in the cabinet 21 is too high and damage, prolonged the working life of each parts in the cabinet 21.
In order to eliminate the harmonic wave in the primary power supply, play the effect of rectification, reduce the wattless power in the working procedure, variable-pitch control system provided by the utility model also comprises reactance, reactance is connected between the primary power supply and each driver 22 of wind power generating set.
On the other hand, in order to reduce the manufacture cost of feather control gear, driver 22 can be specially frequency variator; Certainly, because advantage such as ultracapacitor has easy to maintenance, long service life, operating temperature range is wide, the speed that discharges and recharges is fast, standby power supply 23 can be ultracapacitor.
The installation of standby power supply 23 for convenience, in another kind of embodiment, the utility model provides the feather control gear also to comprise the mounting plate that is arranged at cabinet 21 inside, and on the mounting plate and offer a plurality of through holes, standby power supply 23 is installed on mounting plate.Because cabinet 21 volume inside that are arranged so that of mounting plate are cut off, can all play the effect of cooling to the whole space in the cabinet 21 in order to guarantee autocondensation formula air-conditioning, through hole is set to make things convenient for the circulation of air on the mounting plate.Certainly, if above-mentioned mounting plate also has remaining space, can also be used to installing low-voltage component.
The heat that driver 22 is produced in the course of the work is more, for guaranteeing timely heat radiation, avoid temperature too high working life that influences driver 22, each driver 22 all is provided with radiator, and for heat radiation quickly, reduce the space in the cabinet 22 that driver 22 takies simultaneously, and place radiator and disturb internal signal, the radiator of driver 22 can be arranged at the outside of cabinet 21.
In addition, for solving the problems of the technologies described above, the utility model also provides a kind of wind power generating set, comprise blade and the feather control gear that is used to change blade angle, the feather control gear is above-mentioned feather control gear, other structures and the prior art of wind power generating set are basic identical, and this paper repeats no more.
More than wind power generating set provided by the utility model and feather control gear thereof are described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. the feather control gear of a wind power generating set, comprise cabinet (21), controller, three drivers (22) and standby power supply (23), it is characterized in that, the number of described cabinet (21) is one, each described driver (22) all is arranged at the side plate of described cabinet (21), described controller and described standby power supply (23) are arranged in the described cabinet (21), and described controller, described driver (22) and described standby power supply (23) are connected by conjunction cable.
2. the feather control gear of wind power generating set according to claim 1 is characterized in that, also comprises autocondensation formula air-conditioning (24), and described autocondensation formula air-conditioning (24) is installed on the side plate of described cabinet (21).
3. the feather control gear of wind power generating set according to claim 2 is characterized in that, also comprises reactance, and described reactance is connected between the primary power supply and each described driver (22) of described wind power generating set.
4. according to the feather control gear of each described wind power generating set of claim 1 to 3, it is characterized in that also comprise mounting plate, described mounting plate is arranged at the inside of described cabinet (21), and offer a plurality of through holes, described standby power supply (23) is installed on described mounting plate.
5. according to the feather control gear of each described wind power generating set of claim 1 to 3, it is characterized in that described driver (22) is a frequency variator.
6. according to the feather control gear of each described wind power generating set of claim 1 to 3, it is characterized in that described standby power supply (23) is a ultracapacitor.
7. according to the feather control gear of each described wind power generating set of claim 1 to 3, it is characterized in that the radiator of each described driver (22) is positioned at the outside of described cabinet (21).
8. a wind power generating set comprises blade and the feather control gear that is used to change blade angle, it is characterized in that described feather control gear is each described feather control gear of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200200300U CN201916118U (en) | 2011-01-21 | 2011-01-21 | Wind generating set and pitch-change control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200200300U CN201916118U (en) | 2011-01-21 | 2011-01-21 | Wind generating set and pitch-change control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916118U true CN201916118U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200200300U Expired - Lifetime CN201916118U (en) | 2011-01-21 | 2011-01-21 | Wind generating set and pitch-change control device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338032A (en) * | 2011-09-08 | 2012-02-01 | 江苏金风风电设备制造有限公司 | Electric blade-changing system of wind generating set |
| CN104421109A (en) * | 2013-08-19 | 2015-03-18 | 苏州能健电气有限公司 | Heat dissipation device for wind power pitch control system |
-
2011
- 2011-01-21 CN CN2011200200300U patent/CN201916118U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338032A (en) * | 2011-09-08 | 2012-02-01 | 江苏金风风电设备制造有限公司 | Electric blade-changing system of wind generating set |
| CN104421109A (en) * | 2013-08-19 | 2015-03-18 | 苏州能健电气有限公司 | Heat dissipation device for wind power pitch control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY ELECTRIC Co.,Ltd. Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |