CN210422874U - Generating set driftage actuating system and generating set driftage system - Google Patents
Generating set driftage actuating system and generating set driftage system Download PDFInfo
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- CN210422874U CN210422874U CN201921262776.5U CN201921262776U CN210422874U CN 210422874 U CN210422874 U CN 210422874U CN 201921262776 U CN201921262776 U CN 201921262776U CN 210422874 U CN210422874 U CN 210422874U
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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
Abstract
The utility model discloses a generating set actuating system that drifts belongs to generating set driftage technical field. The yaw driving system adopts a magnetoelectric structure and comprises a stator and a rotor which are respectively and relatively fixed on a slewing bearing fixing part and a slewing bearing rotating part, and a servo driving mechanism for providing exciting current for the rotor, wherein the rotor rotates relative to the stator under the action of the servo driving mechanism, and then the slewing bearing rotating part is driven to realize yaw action relative to the slewing bearing fixing part. The stator and the rotor are arranged in a radial mode. A genset yaw system including the yaw drive system is also disclosed. The utility model discloses utilize magnetoelectric induction principle, realize non-contact's driftage action, replace current contact gear engagement driftage drive action, avoided the damage that meshing part wearing and tearing caused in long-term work, this driftage system simple structure, the method is simple and convenient, and is not fragile, and long service life and maintenance are convenient, change portably.
Description
Technical Field
The utility model relates to a generating set's driftage technical field especially relates to a generating set driftage actuating system and generating set driftage system.
Background
With the popularization and deep development of new energy power generation concepts, tidal current energy and wind generating sets have become mainstream power generation devices in the new energy field. Ocean tide and wind energy are used as driving sources for running of the unit, and the unit has variability in flow direction. The existing generator set mostly adopts a yaw system to adjust the azimuth of the generator set so as to capture the maximum driving energy.
The existing generating set yawing system adopts a mechanical structure, namely, a driving motor and a reduction gear box are used as power sources, and a gear at the front end of the reduction gear box is meshed with a corresponding gear ring on a set fixing part, so that the power source drives the generating set cabin to integrally yaw. However, the current tidal current energy and wind generating set yaw system has the following problems:
(1) because the operation environment is severe, the unit is subjected to the comprehensive action of various uncertain factors and environmental conditions in the operation process, and the mechanical structure is difficult to realize full sealing, so that the problems of corrosion, accelerated wear and the like of parts are easy to occur.
(2) Because of the adoption of a gear meshing mode, contact friction exists between all teeth, abrasion and structural damage easily occur in long-term use, and the gear meshing contact part also fails due to factors such as the processing precision and the process of tooth shapes. In addition, for the unit of different models, there is the difference to yaw speed and drive torque requirement, needs to design the reduction gear box of various velocity ratios according to different models, and the driving motor also needs redesign according to required moment of torsion and rotational speed, and work load is big, and the design cycle is long.
(3) The gear meshing mode needs to be periodically added with lubricating grease and is provided with an automatic lubricating system. Because the whole body cannot be sealed, the lubricating grease can be influenced by the environment, and is easily distributed unevenly and fails on the tooth surface, so that the gear ring is damaged due to insufficient lubrication. The lubricating pump is also required to be provided with a power supply and the running state is monitored, so that the complexity of the system is further increased.
(4) At present, a mechanical yawing system and a unit are integrally assembled, once a yawing gear ring and teeth are deformed and broken, the whole cabin needs to be separated from an operation environment for partial disassembly to complete replacement, the operation difficulty is high, the process is complex, the time consumption is long, the replacement cost is high, the unit is stopped for a long time, and the generated energy is greatly influenced.
Therefore, it is obvious that the existing yaw driving system of the generator set has inconvenience and disadvantages in structure, method and use, and further improvement is needed. How to establish a new generating set driftage actuating system and generating set driftage system, make it thoroughly change traditional mechanical type gear engagement driftage mode, adopt non-contact driftage actuating method, simple structure, it is not fragile, become the target that the industry greatly needs the improvement at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a generating set actuating system that drifts away makes it thoroughly change traditional mechanical type gear engagement driftage mode, adopts non-contact driftage drive mode, and simple structure is not fragile to overcome current generating set actuating system that drifts away not enough.
In order to solve the technical problem, the utility model provides a generating set actuating system that drifts away, actuating system that drifts away adopts magnetoelectric drive system that drifts away, magnetoelectric drive system that drifts away is including stator and the rotor on being fixed in generating set slewing bearing fixed part and slewing bearing rotary part respectively relatively, and does the rotor provides exciting current's servo drive mechanism, the rotor is in servo drive mechanism's effect down for the stator takes place to rotate, and then drives generating set slewing bearing rotary part and realize the action of driftage for slewing bearing fixed part.
In a further improvement, the stator and the rotor are fixed between the generator set rotary support fixing component and the rotary support rotating component in a radial arrangement mode.
The improved structure is characterized in that the stator is formed by laminating silicon steel sheets, a plurality of uniformly distributed through holes are formed in the side face, close to the rotor, of the stator, and magnetic steel is fixedly embedded in the through holes.
The improved structure is characterized in that the rotor is formed by laminating silicon steel sheets, a plurality of uniformly distributed groove bodies are formed in the side face, close to the stator, of the rotor, excitation windings are embedded in the groove bodies, and the excitation windings are electrically connected with the servo driving mechanism.
The rotor is further improved by adopting a whole piece of magnetic conductivity metal as an iron core, an excitation winding is wound outside the iron core, and the excitation winding is electrically connected with the servo driving mechanism.
The servo driving mechanism comprises a driving motor and a frequency converter connected with the driving motor, and the frequency converter is used for being connected with a generator set main control system.
The utility model also provides a generating set driftage system, including foretell generating set driftage actuating system, wherein, the stator is followed generating set slewing bearing fixed part's inside wall lower part sets up, the rotor is followed slewing bearing rotary part's outside wall lower part sets up.
The improved structure comprises a stator and a rotor, and is characterized by further comprising a sealing plate arranged on the axial outer side surface of the stator and the axial outer side surface of the rotor, wherein the sealing plate is of a circular ring structure, the inner ring edge of the circular ring structure is fixedly connected with the bottom of the outer side wall of the rotary supporting component, the outer ring edge of the circular ring structure is in sealing contact with the bottom of the inner side wall of the rotary supporting component, and a cable through hole is formed in the sealing plate.
The sealing plate is further improved, and is made of rubber oil seal materials.
The rotary support is characterized in that the rotary support fixing component and the rotary support rotating component are movably connected through a bearing, and the bearing is a ball bearing or a column bearing.
After adopting such design, the utility model discloses following advantage has at least:
1. the utility model discloses a radial stator and the rotor of taking magnetoelectricity of setting up respectively relatively between generating set slewing bearing fixed part and slewing bearing rotary part to exert exciting current to the excitation winding of rotor according to generating set driftage instruction, utilize magnetoelectric induction principle, realize non-contact driftage action, replace current contact gear engagement driftage drive action, avoided meshing part to cause the damage because of inevitable wearing and tearing in long-term work, greatly improved driftage actuating system's life-span.
2. The utility model discloses the mounting means of stator and rotor is nimble, only needs corresponding replacement to fall the part of damage during the change, need not thoroughly transfer the cabin from slewing bearing, has saved work load greatly, shortens the part and changes the time, improves maintenance efficiency.
3. The utility model discloses still through setting up the closing plate, can realize the sealed of stator and rotor place recess region, prevent the entering of foreign matters such as dust, impurity, influence the relative motion of the stator that electromagnetic induction produced and rotor. And the yaw system is made of the abrasion-resistant sealing material, so that the service life of the yaw system can be prolonged better.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural diagram of the yawing system of the generator set of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Detailed Description
The utility model discloses to the defect of current generating set driftage system, provided a non-contact magnetoelectric driftage drive mode, replaced current contact gear engagement driftage drive mode. The non-contact magnetoelectric yaw driving method and the yaw driving system are used for a yaw system of a wind turbine generator, and the specific embodiment is described as follows:
referring to fig. 1 and 2, the magnetoelectric yaw driving system of the embodiment includes a stator 4 and a rotor 5 relatively fixed to a fixed part 1 of a slewing bearing of a wind turbine generator and a rotating part 2 of the slewing bearing, respectively, and a servo driving mechanism for supplying an exciting current to the rotor 5. The rotor 5 rotates relative to the stator 4 under the action of the servo driving mechanism, and further drives the rotating component 2 of the wind turbine generator set connected with the rotor to realize yawing motion relative to the fixed component 1 of the wind turbine generator set.
In the present embodiment, the stator 4 and the rotor 5 are arranged in a radial arrangement, and the stator 4 is arranged on the outer periphery of the rotor 5.
Specifically, this stator 4 adopts the silicon steel sheet to fold and press and forms, radially offers a plurality of evenly distributed's through-hole on this stator 4 is close to the side of this rotor 5, all fixes in this through-hole to inlay and is equipped with the magnet steel and the curing of encapsulating, and this stator 4 is equivalent to the stator core who takes the magnet steel promptly.
The rotor 5 can be formed by laminating silicon steel sheets, a plurality of uniformly distributed groove bodies are arranged on the side surface, close to the stator 4, of the rotor 5, an excitation winding is embedded in the groove bodies, and the excitation winding is electrically connected with the servo driving mechanism. That is, the rotor 5 corresponds to a rotor core with a field coil. Of course, the rotor 5 may also adopt a whole block of magnetic conductive metal as an iron core, and an excitation winding is wound outside the iron core, and the excitation winding is electrically connected to the servo driving mechanism and is used for receiving the excitation current provided by the servo driving mechanism to form an excitation magnetic field.
In this embodiment, the servo driving mechanism includes a driving motor and a frequency converter connected thereto, the frequency converter is used for being connected with the wind turbine main control system to receive a yaw instruction of the wind turbine main control system, and the driving motor applies a corresponding exciting current to the exciting winding of the rotor 5 after the frequency converter receives and converts the yaw instruction, so as to realize rotation of the rotor 5 relative to the stator 4.
When the magnetoelectric yaw driving system is applied to a wind turbine generator yaw system, the specific implementation mode is as follows: the wind turbine generator yaw system comprises a slewing bearing fixing part 1 and a slewing bearing rotating part 2, wherein the slewing bearing fixing part 1 is fixedly connected with a wind turbine generator mounting platform, the slewing bearing rotating part 2 is fixedly connected with a wind turbine generator cabin, and the slewing bearing fixing part 1 is movably connected with the slewing bearing rotating part 2 through a bearing 3. The types of bearings 3 include, but are not limited to, ball bearings, post bearings, and various combinations and numbers of ball and post bearings.
The stator 4 is continuously arranged along the lower portion of the inner side wall of the wind turbine generator slewing bearing fixing part 1, and the installation mode includes but is not limited to fastener connection. The rotor 5 is continuously arranged along the lower part of the outer side wall of the rotary component 2 of the rotary support, and the installation mode includes but is not limited to fastener connection. Specifically, a groove may be formed in one side of the lower portion of the conventional slewing bearing fixing member 1 or slewing bearing rotating member 2, or grooves may be formed in both sides of the lower portions of the slewing bearing fixing member 1 and slewing bearing rotating member 2, and the stator and the rotor may be disposed in the grooves.
In order to prevent foreign matters such as dust and foreign matters from entering the stator and the rotor, the yaw system of the present embodiment further includes a seal plate 6 disposed on an axially outer side surface of the stator 4 and the rotor 5. The sealing plate 6 is of a circular ring structure, the inner ring edge of the circular ring structure is fixedly connected with the bottom of the outer side wall of the rotary supporting and rotating component 2, and the mounting mode preferably adopts bolt fixing. The outer ring edge of the circular ring structure is in sealing contact with the bottom of the inner side wall of the slewing bearing fixing part 1. That is, the seal plate 6 rotates with the rotation of the slewing bearing rotary member 2, and generates friction with the fixed member 1, thereby achieving dynamic sealing during operation, preventing foreign matters such as dust and impurities from entering the space where the stator 3 and the rotor 4 are located, and having a good dustproof effect.
The sealing plate 6 is provided with a cable through hole 8 for passing a cable 7 for connecting the exciting coil of the rotor 5 and the servo driving mechanism. And the sealing plate 6 is made of a friction-resistant sealing material, such as a material for a rubber oil seal.
The yaw driving principle of the yaw driving system of the wind turbine generator set is as follows: because the stator 4 and the rotor 5 are respectively and oppositely and radially fixed on the slewing bearing fixing part 1 and the slewing bearing rotating part 2 of the wind turbine generator, the servo driving mechanism applies exciting current to an exciting winding of the rotor according to the received yaw speed, namely the whole yaw driving system is equivalent to a permanent magnet motor driven by a variable frequency driver, the relative movement of the rotor 5 relative to the stator 4 is realized through the interaction of an alternating electromagnetic field formed by the exciting current and a stator magnetic field, and then the rotor 5 drives the slewing bearing rotating part 2 to rotate relative to the slewing bearing fixing part 1 connected with the stator 4, so that the purpose of yaw is achieved.
The utility model discloses magnetoelectric formula driftage actuating system still can be used to large-scale generating set such as trend ability, avoids traditional contact gear engagement driftage system to cause the damage because of inevitable wearing and tearing in long-term work, has greatly improved driftage actuating system's life-span. And because the mounting modes of the stator and the rotor are flexible, only damaged parts need to be replaced correspondingly during replacement, and the engine room does not need to be completely removed from the slewing bearing, so that the workload is greatly saved, the replacement time of the parts is shortened, and the maintenance efficiency is improved.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (10)
1. The utility model provides a generating set actuating system that drifts, its characterized in that, actuating system that drifts adopts magnetoelectric driftage actuating system, magnetoelectric driftage actuating system is including stator and the rotor of being fixed in respectively relatively on generating set slewing bearing fixed part and slewing bearing rotary part, and for the rotor provides exciting current's servo drive mechanism, the rotor is in servo drive mechanism's effect down for the stator takes place to rotate, and then drives generating set slewing bearing rotary part and realize the action of driftage for slewing bearing fixed part.
2. The genset yaw drive system of claim 1 wherein the stator and rotor are secured between a genset slewing bearing stationary component and a slewing bearing rotating component in a radial arrangement.
3. The yaw driving system of the generator set according to claim 2, wherein the stator is formed by laminating silicon steel sheets, a plurality of uniformly distributed through holes are formed in the side surface of the stator close to the rotor, and magnetic steel is fixedly embedded in each through hole.
4. The yaw driving system of the generator set according to claim 3, wherein the rotor is formed by laminating silicon steel sheets, a plurality of uniformly distributed grooves are formed in the side face, close to the stator, of the rotor, excitation windings are embedded in the grooves, and the excitation windings are electrically connected with the servo driving mechanism.
5. The yaw drive system of the generator set according to claim 3, wherein the rotor is made of a single piece of magnetically permeable metal, an excitation winding is wound around the iron core, and the excitation winding is electrically connected to the servo drive mechanism.
6. The genset yaw drive system of claim 1 wherein the servo drive mechanism includes a drive motor and a frequency converter connected thereto for connection to a genset master control system.
7. A genset yaw system comprising the genset yaw drive system of any one of claims 1 to 6 wherein the stator is disposed along a lower portion of an inner sidewall of the genset slewing bearing stationary component and the rotor is disposed along a lower portion of an outer sidewall of the slewing bearing rotary component.
8. The generating set yaw system of claim 7, further comprising a sealing plate disposed on an axial outer side surface of the stator and the rotor, wherein the sealing plate is of a circular ring structure, an inner ring edge of the circular ring structure is fixedly connected with a bottom of an outer side wall of the rotary component of the slewing bearing, an outer ring edge of the circular ring structure is in sealing contact with a bottom of an inner side wall of the fixed component of the slewing bearing, and a cable through hole is formed in the sealing plate.
9. The genset yaw system of claim 8 wherein the seal plate is made of a rubber oil seal.
10. The genset yaw system of claim 7 wherein the fixed and rotating members are moveably coupled via a bearing, the bearing being a ball bearing or a post bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921262776.5U CN210422874U (en) | 2019-08-06 | 2019-08-06 | Generating set driftage actuating system and generating set driftage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921262776.5U CN210422874U (en) | 2019-08-06 | 2019-08-06 | Generating set driftage actuating system and generating set driftage system |
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| CN210422874U true CN210422874U (en) | 2020-04-28 |
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| CN201921262776.5U Active CN210422874U (en) | 2019-08-06 | 2019-08-06 | Generating set driftage actuating system and generating set driftage system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285021A (en) * | 2019-08-06 | 2019-09-27 | 国电联合动力技术有限公司 | A kind of generating set yaw drive system and method and generating set yaw system |
| CN117072375A (en) * | 2023-10-13 | 2023-11-17 | 华电电力科学研究院有限公司 | Wind turbine generator system, yaw starting device based on electromagnetic excitation and starting method |
-
2019
- 2019-08-06 CN CN201921262776.5U patent/CN210422874U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285021A (en) * | 2019-08-06 | 2019-09-27 | 国电联合动力技术有限公司 | A kind of generating set yaw drive system and method and generating set yaw system |
| CN117072375A (en) * | 2023-10-13 | 2023-11-17 | 华电电力科学研究院有限公司 | Wind turbine generator system, yaw starting device based on electromagnetic excitation and starting method |
| CN117072375B (en) * | 2023-10-13 | 2024-01-09 | 华电电力科学研究院有限公司 | Wind turbine generator system, yaw starting device based on electromagnetic excitation and starting method |
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