CN105827085A - Permanent magnet generator with variable radial air gap and wind power generation device - Google Patents
Permanent magnet generator with variable radial air gap and wind power generation device Download PDFInfo
- Publication number
- CN105827085A CN105827085A CN201610336545.9A CN201610336545A CN105827085A CN 105827085 A CN105827085 A CN 105827085A CN 201610336545 A CN201610336545 A CN 201610336545A CN 105827085 A CN105827085 A CN 105827085A
- Authority
- CN
- China
- Prior art keywords
- air gap
- drive mechanism
- magneto
- support shaft
- radial air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010248 power generation Methods 0.000 title claims description 13
- 238000004804 winding Methods 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008602 contraction Effects 0.000 abstract 1
- 241000555745 Sciuridae Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- H02J3/386—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/021—Means for mechanical adjustment of the excitation flux
- H02K21/022—Means for mechanical adjustment of the excitation flux by modifying the relative position between field and armature, e.g. between rotor and stator
- H02K21/025—Means for mechanical adjustment of the excitation flux by modifying the relative position between field and armature, e.g. between rotor and stator by varying the thickness of the air gap between field and armature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/008—Arrangements for controlling electric generators for the purpose of obtaining a desired output wherein the generator is controlled by the requirements of the prime mover
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
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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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention relates to a permanent magnet generator with variable radial air gap, comprising a shell, a rotating shaft, a stator winding, a fixed support shaft, an air gap adjustment drive mechanism, sliders, and pull rods. A rotor permanent magnet is fixed on the rotating shaft. At the non-extending end of a motor, the fixed support shaft and the end part of the shell are fixed together. The center line of the fixed support shaft overlaps with the center line of the rotating shaft. The air gap adjustment drive mechanism is movably connected to the fixed support shaft, and axially moves along the fixed support shaft. The air gap adjustment drive mechanism near the motor end is connected with one ends of the two or more pull rods, and the other ends of the pull rods are connected with the sliders fixed to the end part of the stator winding at the non-extending end. The two or more pull rods form an umbrella structure and move along with the air gap adjustment drive mechanism. The radial air gap between the stator winding and the rotor permanent magnet is changed through contraction of the pull rods like an umbrella, and the speed of the permanent magnet generator is changed through the change in radial air gap so as to change the output current of the generator.
Description
Technical field
The present invention relates to wind power generation field, particularly relate 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.
Summary of the invention
It is an object of the invention 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 scheme is that 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.
The method have the benefit that, 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 the present invention；
Fig. 2 is that embodiment of the present invention air gap regulates driving mechanism structure schematic diagram；
Fig. 3 is one wind power generation plant example structure schematic diagram of the present invention.
Detailed description of the invention
The present invention is further illustrated with specific embodiment 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，The invention still 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 the present patent application is claimed is not only limited in described embodiment.All and present invention equivalence technical scheme belongs to protection scope of the present invention.
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 |
|---|---|---|---|
| CN201610336545.9A CN105827085B (en) | 2016-05-20 | 2016-05-20 | A kind of magneto and wind power generation plant of variable radial air gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336545.9A CN105827085B (en) | 2016-05-20 | 2016-05-20 | A kind of magneto and wind power generation plant of variable radial air gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105827085A true CN105827085A (en) | 2016-08-03 |
| CN105827085B CN105827085B (en) | 2018-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610336545.9A Active CN105827085B (en) | 2016-05-20 | 2016-05-20 | A kind of magneto and wind power generation plant of variable radial air gap |
Country Status (1)
| Country | Link |
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| CN (1) | CN105827085B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736679A (en) * | 2017-04-20 | 2018-11-02 | 通用汽车环球科技运作有限责任公司 | Motor with continuous magnetic variation characteristic and its control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639947A (en) * | 2002-03-08 | 2005-07-13 | 劳伦斯·P·策普 | Brushless permanent magnet motor or alternator with variable axial rotor/stator alignment to increase speed capability |
| CN101943117A (en) * | 2009-07-07 | 2011-01-12 | 通用电气公司 | Be used to control the method and apparatus of tip speed of the blade of wind turbine |
| CN102237750A (en) * | 2010-04-22 | 2011-11-09 | 威力克有限公司 | Wind power turbine electric generator, and wind power turbine equipped with such an electric generator |
| CN104935111A (en) * | 2015-07-09 | 2015-09-23 | 兰州交通大学 | Mechanical adjustable magnet type rotation motor |
| CN205622454U (en) * | 2016-05-20 | 2016-10-05 | 湘潭电机股份有限公司 | Variable radial air gap's permanent magnet generator and wind power generation set |
-
2016
- 2016-05-20 CN CN201610336545.9A patent/CN105827085B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639947A (en) * | 2002-03-08 | 2005-07-13 | 劳伦斯·P·策普 | Brushless permanent magnet motor or alternator with variable axial rotor/stator alignment to increase speed capability |
| CN101943117A (en) * | 2009-07-07 | 2011-01-12 | 通用电气公司 | Be used to control the method and apparatus of tip speed of the blade of wind turbine |
| CN102237750A (en) * | 2010-04-22 | 2011-11-09 | 威力克有限公司 | Wind power turbine electric generator, and wind power turbine equipped with such an electric generator |
| CN104935111A (en) * | 2015-07-09 | 2015-09-23 | 兰州交通大学 | Mechanical adjustable magnet type rotation motor |
| CN205622454U (en) * | 2016-05-20 | 2016-10-05 | 湘潭电机股份有限公司 | Variable radial air gap's permanent magnet generator and wind power generation set |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736679A (en) * | 2017-04-20 | 2018-11-02 | 通用汽车环球科技运作有限责任公司 | Motor with continuous magnetic variation characteristic and its control method |
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| Publication number | Publication date |
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| CN105827085B (en) | 2018-04-03 |
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| CB03 | Change of inventor or designer information |
Inventor after: Xia Yunqing Inventor after: Zhu Guanghui Inventor after: Liu Weishu Inventor after: He Juan Inventor after: Yang Zhi Inventor before: Zhu Guanghui Inventor before: Xia Yunqing Inventor before: Liu Weishu Inventor before: He Juan Inventor before: Yang Zhi |
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| CB03 | Change of inventor or designer information |