CN105356706B - Slow-speed of revolution disc type double-fed generator and its exciting current applying method - Google Patents
Slow-speed of revolution disc type double-fed generator and its exciting current applying method Download PDFInfo
- Publication number
- CN105356706B CN105356706B CN201510930695.8A CN201510930695A CN105356706B CN 105356706 B CN105356706 B CN 105356706B CN 201510930695 A CN201510930695 A CN 201510930695A CN 105356706 B CN105356706 B CN 105356706B
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- CN
- China
- Prior art keywords
- stator
- rotor
- magnet steel
- wire loop
- enameled wire
- 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.)
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Classifications
-
- 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
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
-
- 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
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a kind of slow-speed of revolution disc type double-fed generator and its exciting current applying method, including motor casing and armature spindle, stator disc is provided with motor casing, 4N+1 cylinder shape stator magnet steel has along the circumferential direction been sequentially arranged on stator disc, enameled wire loop is wound with each magnetic steel of stator, each enameled wire loop connects and composes output winding；Rotor disk is fixedly installed on armature spindle, circumference on rotor disk sets up two groups relative to the rotor magnetic steel that rotor disk radial symmetric is arranged, also enameled wire loop is wound with rotor magnetic steel respectively, the enameled wire loop that enameled wire loop in first group rotor magnet steel is connected and composed in the first magnet exciting coil, the second group rotor magnet steel connects and composes the second magnet exciting coil.Slow-speed of revolution disc type double-fed generator of the present invention, which overcoming conventional hidden pole type double-fed generator needs rotating speed high, the deficiency such as grid-connected difficulty, and conversion efficiency is high, and important technical guarantee is provided for the low product energy resource collecting such as gentle breeze, micro- water, generating, reliable grid connection.
Description
Technical field
The present invention relates to a kind of generator, more particularly to a kind of disk generator of AC excitation.
Background technology
Renewable gentle breeze, micro- water equal energy source, as the important component of the current energy, to the sustainable development of national economy
The general advance of exhibition and society has important strategic importance.
In the prior art, in wind power generation field, generate electricity, generally generated electricity using magneto for capacity is less,
Then inversion grid connection is carried out using various electronic power inversion devices；For the generating that Capacity Ratio is larger, using use generator
Generating has that current transformer cost is too high, the too low shortcoming of reliability.
Therefore hidden pole type double-fed generator is often used in the larger occasion of capacity, it is unconventional to rotor progress AC excitation
DC excitation, the frequency of exciting current is added in output, output voltage is followed network voltage so as to grid-connected.But due to
Hidden pole type double-fed generator magnetic pole logarithm is few, and rotation speed of fan is low, for the ease of grid-connected, in addition it is also necessary to use change gear box speedup,
Then just drive electrical power generators grid-connected, and gearbox friction is serious, can greatly reduce conversion efficiency.
Therefore, it is necessary to design and develop a kind of new generator, the randomness new energy such as the micro- water of gentle breeze are made to be easy to collection to send out
Electricity and flexibility are grid-connected, realize the efficient utilization to energy resources.
The content of the invention
In view of this, the present invention provides a kind of slow-speed of revolution disc type double-fed generator and its exciting current applying method, to solve
Certainly existing hidden pole type double-fed generator needs rotating speed high, grid-connected difficult, the low shortcoming of conversion efficiency.
Stator is provided with slow-speed of revolution disc type double-fed generator of the present invention, including motor casing and armature spindle, the motor casing
The 1st cylinder shape stator magnet steel, the 2nd cylinder shape stator magnet steel, the 3rd circle have along the circumferential direction been sequentially arranged on disk, the stator disc
Shaped stator magnet steel ..., 4N+1 cylinder shape stator magnet steel, N is natural number；The axial line of each magnetic steel of stator and the axle of stator disc
Heart line is parallel；Enameled wire loop is wound with each magnetic steel of stator, by the paint in 4N+1 magnetic steel of stator on stator disc on odd number magnet steel
Forward connected in envelope curve circle, remaining enameled wire loop is reversely connected in series to form output winding；
Rotor disk is fixedly installed on the armature spindle, rotor disk is coaxial with stator disc, the circumference on the rotor disk to
On be provided with two groups relative to the rotor magnetic steel that rotor disk radial symmetric is arranged, include 2N rotor magnetic respectively per group rotor magnet steel
Adjacent magnet steel spacing magnet steel spacing adjacent with stator disc in steel, and every group is identical；Also it is wound with respectively on each rotor magnetic steel
Enameled wire loop in enameled wire loop, the first group rotor magnet steel using forward being connected with the enameled wire loop identical on magnetic steel of stator and
Differential concatenation mode connect and compose enameled wire loop in the first magnet exciting coil, the second group rotor magnet steel also use with magnetic steel of stator
Enameled wire loop identical forward connect and connect and compose the second magnet exciting coil with differential concatenation connected mode.
The exciting current applying method of slow-speed of revolution disc type double-fed generator of the present invention, the first group rotor magnet steel it is excitatory
Electric current is applied by the sinusoidal rule containing compensation rate, and the exciting curent of the second group rotor magnet steel is applied by the cosine rule containing compensation rate
Plus, two groups of exciting curent amplitude is identical, and amplitude is applied by stator output voltage and idle requirement.
Beneficial effects of the present invention：
Slow-speed of revolution disc type double-fed generator and its exciting current applying method of the present invention, which overcome conventional hidden pole type double-fed
Generator needs rotating speed high, the deficiency such as grid-connected difficulty, and conversion efficiency is high, be the low product energy resource collecting such as gentle breeze, micro- water, generating,
Reliable grid connection provides important technical guarantee.
Brief description of the drawings
Fig. 1 is the sectional perspective decomposition texture schematic diagram of the present embodiment slow-speed of revolution disc type double-fed generator；
Fig. 2 is most simple single-phase converter topology diagram, wherein E1, E2- exciter converter DC side power supply, and V1-V4- is complete
Control type power electronic switching device, D1-D4- Power Diode Pumpeds, first group of Exciting Windings for Transverse Differential Protection of L1R1-, second group of Exciting Windings for Transverse Differential Protection of L2R2；
Fig. 3 is stator output equivalent circuit theory diagrams.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As illustrated, the present embodiment slow-speed of revolution disc type double-fed generator, including motor casing and armature spindle, on the motor casing
It is provided with stator disc 1, the stator disc and has along the circumferential direction been sequentially arranged the 1st cylinder shape stator magnet steel, the 2nd cylinder shape stator
Magnet steel, the 3rd cylinder shape stator magnet steel ..., 4N+1 cylinder shape stator magnet steel, N is natural number；The axial line of each magnetic steel of stator 2
With the axis parallel of stator disc；Enameled wire loop is wound with each magnetic steel of stator, will be strange in 4N+1 magnetic steel of stator on stator disc
Forward connected in enameled wire loop on number magnet steel, remaining enameled wire loop is reversely connected in series to form output winding；
Rotor disk 3 is fixedly installed on the armature spindle, rotor disk is coaxial with stator disc, the circumference on the rotor disk to
On be provided with two groups relative to the rotor magnetic steel 4 that rotor disk radial symmetric is arranged, include 2N rotor respectively per group rotor magnet steel
Magnet steel；And the adjacent magnet steel spacing magnet steel spacing adjacent with stator disc in every group is identical；Also coiling is distinguished on each rotor magnetic steel
There is the enameled wire loop in enameled wire loop, the first group rotor magnet steel to use forward to connect with the enameled wire loop identical on magnetic steel of stator
The enameled wire loop in the first magnet exciting coil, the second group rotor magnet steel is connected and composed with differential concatenation mode also to use and magnetic steel of stator
On enameled wire loop identical forward connect and connect and compose the second magnet exciting coil with differential concatenation connected mode.
The exciting current applying method of slow-speed of revolution disc type double-fed generator of the present invention, the first group rotor magnet steel it is excitatory
Electric current is applied by the sinusoidal rule containing compensation rate, and the exciting curent of the second group rotor magnet steel is applied by the cosine rule containing compensation rate
Plus, two groups of exciting curent amplitude is identical, and amplitude is applied by stator output voltage and idle requirement.
The present embodiment slow-speed of revolution disc type double-fed generator, when stationary rotor, the first magnet exciting coil can apply exciting current
I1=C1·sin(W1t+Ф1), the second field coil current can apply exciting current I2=C1·cos(W1t+Ф1) when, W1For
Two magnet exciting coil exciting current angular speed, Ф1For two magnet exciting coil exciting current first phase values, C1It is stator output voltage or idle
The coefficient of decision.
The voltage fundamental of stator inductive output is：
u01=u1+u2=C2·[cos(W1t+Ф1)+i*sin(W1t+Ф1)], wherein i is the imaginary part of output voltage vector；
Voltage fundamental mould is U0=C2, it is constant；u1For exciting current I1Output voltage vector real part, the u of sensing2For exciting current I2Sense
The output voltage vector imaginary part answered；
As rotor excitation current angular speed W1=0, when rotor rotates, stator is by the voltage fundamental for rotating output：
u02=C3·[sin(W2t+Ф2)+i*cos(W2t+Ф2)], W2By rotor angular velocity of rotation and magnetic steel magnetic pole logarithm
Determine；
Due to u01+u02Meet overlaying relation after series connection, so when magnetic curent change and rotor rotation, total output electricity
Press fundamental wave u0=C4·[sin(W1+W2)t+(Ф1+Ф2)]；C4It is total output voltage amplitude, with exciting current amplitude and angle speed
Degree, rotor speed etc. are determined；W1It is exciting current angular frequency, W2It is the induced voltage angular speed that rotor is produced, Ф1、Ф2It is to encourage
Magnetoelectricity stream and rotor initial phase value.
As exciting current I1During increase, output voltage C2Amplitude increases therewith；As exciting current angular speed W1It is defeated during increase
Go out electric voltage frequency to be consequently increased；As exciting current phase Ф1During change, output voltage first phase also responsive to changing therewith.
Slow-speed of revolution disc type double-fed generator and its exciting current applying method of the present invention, which overcome conventional hidden pole type double-fed
Generator needs rotating speed high, the deficiency such as grid-connected difficulty, and conversion efficiency is high, be the low product energy resource collecting such as gentle breeze, micro- water, generating,
Reliable grid connection provides important technical guarantee.
The axial cross section of magnetic steel of stator described in the present embodiment and rotor magnetic steel is in I-shaped, so output voltage has one
Fixed harmonic wave, this harmonic components can be removed using exciting current applying method in the present embodiment.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (2)
1. a kind of slow-speed of revolution disc type double-fed generator, including motor casing and armature spindle, it is characterised in that：Set on the motor casing
Have along the circumferential direction be sequentially arranged on stator disc, the stator disc the 1st cylinder shape stator magnet steel, the 2nd cylinder shape stator magnet steel,
3rd cylinder shape stator magnet steel ..., 4N+1 cylinder shape stator magnet steel, N is natural number；The axial line and stator of each magnetic steel of stator
The axis parallel of disk；Enameled wire loop is wound with each magnetic steel of stator, by odd number magnet steel in 4N+1 magnetic steel of stator on stator disc
On enameled wire loop in forward connect, remaining enameled wire loop is reversely connected in series to form output winding；
Rotor disk is fixedly installed on the armature spindle, rotor disk is coaxial with stator disc, the circumference on the rotor disk is set upwards
Two groups are equipped with relative to the rotor magnetic steel that rotor disk radial symmetric is arranged, includes 2N rotor magnetic steel respectively per group rotor magnet steel,
And the adjacent magnet steel spacing magnet steel spacing adjacent with stator disc in every group is identical；Enamel-cover is also wound with respectively on each rotor magnetic steel
Enameled wire loop in coil, the first group rotor magnet steel with the enameled wire loop identical on magnetic steel of stator using forward connecting and reversely
The enameled wire loop that series system is connected and composed in the first magnet exciting coil, the second group rotor magnet steel is also used and the paint on magnetic steel of stator
Envelope curve circle identical is forward connected and connects and composes the second magnet exciting coil with differential concatenation connected mode.
2. a kind of exciting current applying method of slow-speed of revolution disc type double-fed generator described in claim 1, it is characterised in that：Institute
The exciting curent for stating the first group rotor magnet steel is applied by the sinusoidal rule containing compensation rate, and the exciting curent of the second group rotor magnet steel is pressed
Cosine rule containing compensation rate applies, and two groups of exciting curent amplitude is identical, and amplitude is applied by stator output voltage and idle requirement
Plus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930695.8A CN105356706B (en) | 2015-12-14 | 2015-12-14 | Slow-speed of revolution disc type double-fed generator and its exciting current applying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930695.8A CN105356706B (en) | 2015-12-14 | 2015-12-14 | Slow-speed of revolution disc type double-fed generator and its exciting current applying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105356706A CN105356706A (en) | 2016-02-24 |
| CN105356706B true CN105356706B (en) | 2017-09-15 |
Family
ID=55332607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510930695.8A Expired - Fee Related CN105356706B (en) | 2015-12-14 | 2015-12-14 | Slow-speed of revolution disc type double-fed generator and its exciting current applying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105356706B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6211593B1 (en) * | 1998-10-28 | 2001-04-03 | Okuma Corporation | Synchronous motor with permanent magnet provided on magnetic pole end |
| CN2831596Y (en) * | 2005-09-20 | 2006-10-25 | 沈阳工业大学 | Disk-type brushless double-feedback a.c.dynamo |
| CN202435218U (en) * | 2012-01-19 | 2012-09-12 | 东南大学 | Axial brushless doubly-fed motor |
| CN104935222A (en) * | 2015-06-03 | 2015-09-23 | 华中科技大学 | Brushless double-feed induction generator rotating speed estimation system |
| CN205160325U (en) * | 2015-12-14 | 2016-04-13 | 重庆理工大学 | Disk slow -speed of revolution double -fed generator |
-
2015
- 2015-12-14 CN CN201510930695.8A patent/CN105356706B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6211593B1 (en) * | 1998-10-28 | 2001-04-03 | Okuma Corporation | Synchronous motor with permanent magnet provided on magnetic pole end |
| CN2831596Y (en) * | 2005-09-20 | 2006-10-25 | 沈阳工业大学 | Disk-type brushless double-feedback a.c.dynamo |
| CN202435218U (en) * | 2012-01-19 | 2012-09-12 | 东南大学 | Axial brushless doubly-fed motor |
| CN104935222A (en) * | 2015-06-03 | 2015-09-23 | 华中科技大学 | Brushless double-feed induction generator rotating speed estimation system |
| CN205160325U (en) * | 2015-12-14 | 2016-04-13 | 重庆理工大学 | Disk slow -speed of revolution double -fed generator |
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| Publication number | Publication date |
|---|---|
| CN105356706A (en) | 2016-02-24 |
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Granted publication date: 20170915 Termination date: 20181214 |
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