CN205622454U - Variable radial air gap's permanent magnet generator and wind power generation set - Google Patents
Variable radial air gap's permanent magnet generator and wind power generation set Download PDFInfo
- Publication number
- CN205622454U CN205622454U CN201620462637.7U CN201620462637U CN205622454U CN 205622454 U CN205622454 U CN 205622454U CN 201620462637 U CN201620462637 U CN 201620462637U CN 205622454 U CN205622454 U CN 205622454U
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- CN
- China
- Prior art keywords
- air gap
- magneto
- drive mechanism
- radial air
- permanent magnet
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- 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.)
- Withdrawn - After Issue
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a variable radial air gap's permanent magnet generator, it includes shell, pivot, stator winding, fixed stay axle, air gap regulation actuating mechanism, slider and pull rod, and the rotor permanent magnet is fixed in the pivot, stretches out the end in the non - of motor, and the fixed stay axle is in the same place with the shell end fixing, the central line and the coincidence of pivot central line of fixed stay axle, it is epaxial in the fixed stay that actuating mechanism swing joint is adjusted to the air gap to follow fixed stay axle axial displacement, the one end of adjusting actuating mechanism and the pull rod more than two or two by the air gap of motor end is continuous, and the other end of pull rod is continuous with the slider of fixing non - stretching out the stator winding end portion of end, and the pull rod more than two or two is constituteed umbrella -shaped structure and is moved along with air gap regulation actuating mechanism. The utility model discloses an umbelliform shrink of pull rod and realize the radial air gap's between stator winding and the rotor permanent magnet change to thereby the rotational speed that changes permanent magnet generator through radial air gap's change changes the output current of generator.
Description
Technical field
This utility model relates to wind power generation field, particularly relates to magneto and the wind power generation plant of a kind of variable radial air gap.
Background technology
The motor of the most traditional adjustable air gap mainly includes disc-type permanent magnet motor and squirrel cage motor, what the adjustable disc-type permanent magnet motor of air gap adjusted is axial air-gap, the disc-type permanent magnet motor manufacture difficulty of this adjustment axial air-gap is big, cost is high, be not suitable for wind power generation field, the air gap guiding mechanism also having the squirrel cage motor of variable-air-gap uses spring-loaded, and spring poor reliability, after use time length, the spring of the squirrel cage motor air gap guiding mechanism of variable-air-gap is easily deformed, affect the precision that air gap adjusts, thus affect the performance of motor.
Wind power generation plant is broadly divided into band gear-box double-fed type magneto and the big class of non-gear box direct-drive permanent-magnet generator two.The design of band gear-box double-fed type magneto is simple, lightweight, volume is little, unit cost is relatively low, have employed step-up gear and make rotating speed and the rotational speed matches of band gear-box double-fed type magneto of wind wheel, but gearbox fault rate is high, noise is big, need periodic maintenance, add operation expense and mechanical loss；Non-gear box direct-drive permanent-magnet generator is in order to mate low cruise wind wheel, and motor pole number design is very big, generally on the 100 ultra-Left right sides, the structure of electromotor can become sufficiently complex, and bulky, price is high, but also need to use current transformer, current transformer cost is high, controls complexity.
Utility model content
The purpose of this utility model is to overcome disadvantages described above, it is provided that a kind of simple in construction, cost are relatively low, reliability is high, the magneto of a kind of variable-air-gap of easy maintenance and wind power generation plant.
The technical solution of the utility model is: the magneto of a kind of variable radial air gap, it includes shell, rotating shaft, rotor permanent magnet, stator winding, also include fixing support shaft, air gap regulation drive mechanism, slide block and pull bar, rotor permanent magnet is fixed in rotating shaft, non-protruding end at motor, described fixing support shaft is fixed together with outer casing end, the centrage of described fixing support shaft overlaps with shaft centerline, described air gap regulation drive mechanism is movably connected in fixing support shaft, and move axially along fixing support shaft, air gap regulation drive mechanism by motor side is connected with one end of two or the pull bar of more than two, the other end of pull bar is connected with the slide block of the stator winding end being fixed on non-protruding end, the pull bar composition umbrella-shaped structure of two or more than two is with air gap regulation drive mechanism motion.
Described air gap regulation drive mechanism includes driving motor and Worm and worm-wheel gearing, motor is driven to be connected with worm gear, worm gear is connected with worm engaging, described worm screw is fixed together with fixing support shaft, the centrage of described worm screw overlaps with the centrage of fixing support shaft, drive motor to drive turbine rotation, drive air gap regulation drive mechanism to move axially along worm screw.
nullA kind of wind power generation plant，It includes wind wheel、Torque rotary speed sensor、Magneto、Electrical network，Described magneto is the magneto of variable radial air gap，Also include brake、Controller，The rotating shaft of the magneto of variable radial air gap is connected with brake，The electric current that the magneto of variable radial air gap sends is directly transmitted to electrical network，The other end of described brake is connected with torque rotary speed sensor，Described controller is regulated drive mechanism with the air gap of the magneto of variable radial air gap and is connected by holding wire，Controller regulates drive mechanism to the air gap of the magneto of variable radial air gap and sends and accept control instruction，Described controller is connected by holding wire with brake，Controller sends instruction countershaft and is braked control brake，Described controller is also connected by holding wire with torque rotary speed sensor，Described controller accepts the instruction of torque rotary speed sensor.
Advantageous Effects of the present utility model is, owing to the stator winding end of non-protruding end can be shunk by the umbrella of pull bar along with the linear motion of air gap regulation drive mechanism and realize the change of the radial air gap between stator winding and rotor permanent magnet, thus changed the rotating speed of magneto by the change of radial air gap thus change the output electric current of electromotor, not only decrease gear-box but also need not converter and can realize grid-connected, whole electromotor and wind power generation device structure is simple, cost is relatively low, reliability is high, easily safeguard.
Accompanying drawing explanation
Fig. 1 is the magneto example structure schematic diagram of a kind of variable radial air gap of this utility model；
Fig. 2 is that this utility model embodiment air gap regulates driving mechanism structure schematic diagram；
Fig. 3 is this utility model one wind power generation plant example structure schematic diagram.
Detailed description of the invention
With specific embodiment, this utility model is further described below in conjunction with the accompanying drawings.
nullReferring to the drawings 1 and accompanying drawing 2，A kind of magneto of variable radial air gap，It includes shell 2、Rotating shaft 1、Rotor permanent magnet 8、Stator winding 3，Also include fixing support shaft 7、Air gap regulation drive mechanism 6、Slide block 4 and pull bar 5，Rotor permanent magnet 8 is fixed in rotating shaft 1，Non-protruding end at motor，Described fixing support shaft 7 is fixed together with shell 2 end，The centrage of described fixing support shaft 7 overlaps with rotating shaft 1 centrage，Described air gap regulation drive mechanism 6 is movably connected in fixing support shaft 7，And move axially along fixing support shaft 7，Air gap regulation drive mechanism 6 by motor side is connected with one end of the pull bar 5 of two or more than two，The other end of pull bar 5 is connected with the slide block 4 of stator winding 3 end being fixed on non-protruding end，The pull bar 5 of two or more than two forms umbrella-shaped structure and moves with air gap regulation drive mechanism 6.
Wherein, described air gap regulation drive mechanism 6 includes driving motor 6-2 and Worm and worm-wheel gearing, motor 6-2 is driven to be connected with worm gear 6-1, worm gear 6-1 and worm screw 6-3 engagement is connected, described worm screw 6-3 is fixed together with fixing support shaft 7, the centrage of described worm screw 6-3 overlaps with the centrage of fixing support shaft 7, drives motor 6-2 to drive turbine 6-1 to rotate, and drives air gap regulation drive mechanism to move axially along worm screw.
nullDuring work，First the driving motor 6-2 in air gap regulation drive mechanism 6 housing 6-4 is started，Described driving motor 6-2 drives turbine 6-1 to rotate，Owing to worm gear 6-1 and worm screw 6-3 engagement is connected，Worm screw 6-3 is fixed together with fixing support shaft 7 and centrage overlaps，Drive air gap regulation drive mechanism 6 is relatively fixed support shaft 7 and moves along a straight line by visible driving motor 6-2，Air gap regulation drive mechanism 6 is connected with one end of the pull bar 5 of two or more than two simultaneously，The other end of pull bar 5 is connected with the slide block 4 of stator winding 3 end being fixed on non-protruding end，The pull bar 5 of two or more than two forms umbrella-shaped structure and moves with air gap regulation drive mechanism 6，So stator winding 3 end of non-protruding end can be shunk by the umbrella of pull bar 5 along with the linear motion of air gap regulation drive mechanism 6 and realize the change of the radial air gap between stator winding 3 and rotor permanent magnet 8.
nullReferring to the drawings 3，This utility model further relates to a kind of wind power generation plant，It includes wind wheel 9、Torque rotary speed sensor 10、Magneto 12、Electrical network 3，Described magneto is the magneto 12 of variable radial air gap，Also include brake 11、Controller 14，The rotating shaft of the magneto 12 of variable radial air gap is connected with brake 11，The electric current that the magneto 12 of variable radial air gap sends is directly transmitted to electrical network 13，The other end of described brake 11 is connected with torque rotary speed sensor 10，Described controller 14 is regulated drive mechanism with the air gap of the magneto 12 of variable radial air gap and is connected by holding wire，Controller 14 regulates drive mechanism to the air gap of the magneto 12 of variable radial air gap and sends and accept control instruction，Described controller 14 is connected by holding wire with brake 11，Controller 14 sends instruction countershaft and is braked control brake 11，Described controller 14 is also connected by holding wire with torque rotary speed sensor 10，Described controller 14 accepts the instruction of torque rotary speed sensor 10.
During work, the rotating speed of 10 wind wheels 9 of torque rotary speed sensor and dtc signal send controller 14, controller 14 regulates drive mechanism to the air gap of the magneto 12 of variable radial air gap and sends and accept control instruction, the control instruction that air gap regulation drive mechanism 12 sends according to controller 14, radial air gap between stator winding 3 and the rotor permanent magnet 8 of the magneto 12 of variable radial air gap is adjusted accordingly, the electric current that the magneto 12 of variable radial air gap is sent can be directly transmitted to electrical network 13, completes power generation process.During braking, brake 11 accepts the instruction of controller, and described controller 14 is connected by holding wire with brake 11, and controller 14 sends instruction countershaft and is braked control brake 11, completes braking procedure.
The scope that this utility model application is claimed is not only limited in described embodiment.All and this utility model equivalence technical scheme belongs to protection domain of the present utility model.
Claims (3)
1. a magneto for variable radial air gap, it includes shell, rotating shaft, rotor permanent magnet, stator winding, it is characterised in that also including fixing support shaft, air gap regulation drive mechanism, slide block and pull bar, rotor permanent magnet is fixed in rotating shaft；Non-protruding end at motor, described fixing support shaft is fixed together with outer casing end, the centrage of described fixing support shaft overlaps with shaft centerline, described air gap regulation drive mechanism is movably connected in fixing support shaft, and move axially along fixing support shaft, air gap regulation drive mechanism by motor side is connected with one end of two or the pull bar of more than two, the other end of pull bar is connected with the slide block of the stator winding end being fixed on non-protruding end, and the pull bar composition umbrella-shaped structure of two or more than two is with air gap regulation drive mechanism motion.
The magneto of a kind of variable radial air gap the most according to claim 1, it is characterized in that, described air gap regulation drive mechanism includes driving motor and Worm and worm-wheel gearing, motor is driven to be connected with worm gear, worm gear is connected with worm engaging, and described worm screw is fixed together with fixing support shaft, and the centrage of described worm screw overlaps with the centrage of fixing support shaft, drive motor to drive turbine rotation, drive air gap regulation drive mechanism to move axially along worm screw.
null3. a wind power generation plant，It includes wind wheel、Torque rotary speed sensor、Magneto、Electrical network，Described magneto is the magneto of variable radial air gap，Also include brake、Controller，The rotating shaft of the magneto of variable radial air gap is connected with brake，The electric current that the magneto of variable radial air gap sends is directly transmitted to electrical network，The other end of described brake is connected with torque rotary speed sensor，Described controller is regulated drive mechanism with the air gap of the magneto of variable radial air gap and is connected by holding wire，Controller regulates drive mechanism to the air gap of the magneto of variable radial air gap and sends and accept control instruction，Described controller is connected by holding wire with brake，Controller sends instruction countershaft and is braked control brake，Described controller is also connected by holding wire with torque rotary speed sensor，Described controller accepts the instruction of torque rotary speed sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462637.7U CN205622454U (en) | 2016-05-20 | 2016-05-20 | Variable radial air gap's permanent magnet generator and wind power generation set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462637.7U CN205622454U (en) | 2016-05-20 | 2016-05-20 | Variable radial air gap's permanent magnet generator and wind power generation set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622454U true CN205622454U (en) | 2016-10-05 |
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ID=57023428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620462637.7U Withdrawn - After Issue CN205622454U (en) | 2016-05-20 | 2016-05-20 | Variable radial air gap's permanent magnet generator and wind power generation set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205622454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827085A (en) * | 2016-05-20 | 2016-08-03 | 湘潭电机股份有限公司 | Permanent magnet generator with variable radial air gap and wind power generation device |
| CN113078793A (en) * | 2021-05-14 | 2021-07-06 | 上海理工大学 | Air gap self-adaptive switched reluctance motor stator and rotor structure |
-
2016
- 2016-05-20 CN CN201620462637.7U patent/CN205622454U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827085A (en) * | 2016-05-20 | 2016-08-03 | 湘潭电机股份有限公司 | Permanent magnet generator with variable radial air gap and wind power generation device |
| CN113078793A (en) * | 2021-05-14 | 2021-07-06 | 上海理工大学 | Air gap self-adaptive switched reluctance motor stator and rotor structure |
| CN113078793B (en) * | 2021-05-14 | 2022-07-29 | 上海理工大学 | Air gap self-adaptive switched reluctance motor stator and rotor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161005 Effective date of abandoning: 20180403 |