CN105743403A - Double-fed aerogenerator - Google Patents
Double-fed aerogenerator Download PDFInfo
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- CN105743403A CN105743403A CN201410760146.6A CN201410760146A CN105743403A CN 105743403 A CN105743403 A CN 105743403A CN 201410760146 A CN201410760146 A CN 201410760146A CN 105743403 A CN105743403 A CN 105743403A
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- rotor
- side inverter
- wound
- double
- network
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Abstract
The invention relates to the field of industrial machineary and specifically relates to a double-fed aerogenerator. The double-fed aerogenerator comprises a wound rotor induction motor, the wound rotor induction motor is connected with a rotor-side inverter, the rotor-side inverter is connected with a network-side inverter through a DC line, the network-side inverter is connected with a power network, the power network and the wound rotor induction motor are connected, when the wound rotor induction motor rotates, energy goes into a rotor loop through the rotor-side inverter, through basic control of the network-side inverter, DC voltages are maintained constant and it is ensured that a power factor absorbed from the power network is 1, the rotor-side inverter is individually controlled, the power factor of the generator is controllable, and reactive power can be provided for the power network so as to adjust voltages of the power network.
Description
Technical field
The present invention relates to field of industrial machinery, be specifically related to a kind of double-fed wind power generator.
Background technology
Along with international legislation mechanism, the impact of the factors such as the life-time service of environmental problem and fossil fuel, the demand of wind-driven generator currently quickly increases, the global climatologic change problem enjoying international concern causes national governments striving to find method, improve regenerative resource ratio in whole supply of electric power, to reduce the discharge of carbon dioxide, application number is the utility model patent of CN200920234581.X, by changing the gear ratio between fan blade and electromotor, to realize the Efficient Conversion to wind energy, the rotating speed of the rotating ratio fan blade of generator shaft improves more than 70 times, the rotating speed of generator shaft is greatly improved, improve the work efficiency of electromotor, but, it cannot be guaranteed that electric current is constant, power factor in electrical network is unstable, the voltage of electrical network cannot be carried out regulating.
Summary of the invention
The technical problem to be solved is to provide a kind of current constant, the double-fed wind power generator of scalable electrical network electric industry.
For solving above-mentioned technical problem, the present invention provides techniques below scheme: a kind of double-fed wind power generator, including wound-rotor induction machine, described wound-rotor induction machine is connected to rotor side inverter, described rotor side inverter is connected to net side inverter by DC line, described net side inverter is connected to electrical network, and described electrical network is connected with wound-rotor induction machine.
On such scheme basis preferably, the power of described electrical network is 0.24-0.36KW.
On such scheme basis preferably, described wound-rotor induction machine is provided with rotor punching.
The present invention compared with prior art has the beneficial effect that when wound-rotor induction machine turns and rotates greatly, energy enters rotor loop by rotor side inverter, the basic controlling of net side inverter is so that DC voltage keeps constant, ensure that the power factor absorbed from electrical network is 1, rotor side inverter is individually to control, the power factor of electromotor is controlled, it is possible to provide reactive power to electrical network, to regulate the voltage of electrical network；Wound-rotor induction machine is provided with rotor punching, it is provided that the approach of conducting outside a heat.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the schematic diagram of wound-rotor induction machine in the present invention.
Number in the figure is: 1-wound-rotor induction, 2-rotor side inverter, 3-DC line,
4-net side inverter, 5-electrical network, 6-rotor punching.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention, rather than instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Known with reference to Fig. 1, a kind of double-fed wind power generator, including wound-rotor induction machine 1, described wound-rotor induction machine 1 is connected to rotor side inverter 2, described rotor side inverter 2 is connected to net side inverter 4 by DC line 3, described net side inverter 4 is connected to electrical network 5, and described electrical network 5 is connected with wound-rotor induction machine 1.
Further, the power of described electrical network 5 is 0.24-0.36KW.
Further, described wound-rotor induction machine 1 is provided with rotor punching 6, it is provided that the approach of conducting outside a heat.
When the big rotation of 1 turn of wound-rotor induction machine, energy enters rotor loop by rotor side inverter 2, the basic controlling of net side inverter 4 is so that DC voltage keeps constant, ensure that the power factor absorbed from electrical network 5 is 1, rotor side inverter 2 is individually to control, the power factor of electromotor is controlled, it is possible to provide reactive power to electrical network 5, to regulate the voltage of electrical network 5.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (3)
1. a double-fed wind power generator, it is characterized in that: include wound-rotor induction machine, described wound-rotor induction machine is connected to rotor side inverter, described rotor side inverter is connected to net side inverter by DC line, described net side inverter is connected to electrical network, and described electrical network is connected with rotor winding induction machine.
2. double-fed wind power generator according to claim 1, it is characterised in that: the power of described electrical network is 0.24-0.36KW.
3. double-fed wind power generator according to claim 1, it is characterised in that: described coiling wound-rotor induction machine is provided with rotor punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410760146.6A CN105743403A (en) | 2014-12-12 | 2014-12-12 | Double-fed aerogenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410760146.6A CN105743403A (en) | 2014-12-12 | 2014-12-12 | Double-fed aerogenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105743403A true CN105743403A (en) | 2016-07-06 |
Family
ID=56241101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410760146.6A Pending CN105743403A (en) | 2014-12-12 | 2014-12-12 | Double-fed aerogenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105743403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282064A (en) * | 2018-02-09 | 2018-07-13 | 齐鲁工业大学 | A kind of exchange and permanent magnetism mixing excitation doubly-fed wind turbine and electricity generation system |
-
2014
- 2014-12-12 CN CN201410760146.6A patent/CN105743403A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282064A (en) * | 2018-02-09 | 2018-07-13 | 齐鲁工业大学 | A kind of exchange and permanent magnetism mixing excitation doubly-fed wind turbine and electricity generation system |
| CN108282064B (en) * | 2018-02-09 | 2019-04-12 | 齐鲁工业大学 | A kind of exchange and permanent magnetism mixing excitation doubly-fed wind turbine and electricity generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |