CN205160325U - Disk slow -speed of revolution double -fed generator - Google Patents
Disk slow -speed of revolution double -fed generator Download PDFInfo
- Publication number
- CN205160325U CN205160325U CN201521039746.XU CN201521039746U CN205160325U CN 205160325 U CN205160325 U CN 205160325U CN 201521039746 U CN201521039746 U CN 201521039746U CN 205160325 U CN205160325 U CN 205160325U
- Authority
- CN
- China
- Prior art keywords
- stator
- magnet steel
- rotor
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses a disk slow -speed of revolution double -fed generator, including motor casing and rotor shaft, be provided with stator disk on the motor casing, stator disk is last to have arranged a 4N+1 cylindrical stator magnet steel along the circumferencial direction in proper order, and the coiling has enamelled coil on each stator magnet steel, and each enamelled coil connects the constitution power winding, the fixed rotor dish that is provided with on the rotor shaft, the circumference on the rotor dish upwards is provided with two sets of rotor magnet steel of arranging for rotor dish radial symmetry, on the rotor magnet steel also respectively the coiling have an enamelled coil, the enamelled coil in the first group rotor magnet steel connects and constitutes an excitation coil, the enamelled coil in the second group rotor magnet steel connects and constitutes the 2nd excitation coil. The utility model discloses disk slow -speed of revolution double -fed generator, it has overcome conventional latent utmost point formula double -fed generator needs the rotational speed high to net difficulty etc. Is not enough, and the conversion efficiency is high, for low article energy collections such as gentle breeze, little water, electricity generation, reliably be incorporated into the power networks and provide important technical guarantee.
Description
Technical field
The utility model relates to a kind of generator, particularly a kind of disk generator of AC excitation.
Background technology
Renewable gentle breeze, micro-water equal energy source, as the important component part of current energy source, have important strategic importance to the sustainable development of national economy and the general advance of society.
In prior art, in wind power generation field, for the generating that capacity is less, usually adopt permanent magnet generator generating, then utilize various electronic power inversion device to carry out inversion grid connection; For the generating that Capacity Ratio is larger, use electrical power generators is adopted to there is the shortcomings such as current transformer cost is too high, reliability is too low.
Therefore often adopt hidden pole type double-fed generator in the larger occasion of capacity, carry out AC excitation and unconventional DC excitation to rotor, the frequency of exciting current is added to be exported, and makes output voltage follow network voltage so that grid-connected.But because hidden pole type double-fed generator magnetic pole logarithm is few, rotation speed of fan is low, for the ease of grid-connected, also need to adopt change gear box speedup, then just drive electrical generators electricity generation grid-connecting, and gearbox friction is serious, greatly can reduce conversion efficiency.
Therefore, be necessary to design and develop a kind of new generator, make the randomness new forms of energy such as the micro-water of gentle breeze be convenient to gather generating and flexibility grid-connected, realize the efficiency utilization to energy resources.
Utility model content
In view of this, the utility model provides a kind of disc type slow-speed of revolution double-fed generator, needs rotating speed high to solve existing hidden pole type double-fed generator, the shortcoming such as grid-connected difficulty, conversion efficiency are low.
The utility model disc type slow-speed of revolution double-fed generator, comprise motor casing and armature spindle, described motor casing is provided with stator disc, described stator disc is along the circumferential direction furnished with successively 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 and the axis parallel of stator disc; Each magnetic steel of stator is wound with enameled wire loop, forward connects in the enameled wire loop on odd number magnet steel in the magnetic steel of stator of 4N+1 on stator disc, all the other enameled wire loop differential concatenations form output winding;
Described armature spindle is fixedly installed rotor disk, rotor disk is coaxial with stator disc, circumferential on described rotor disk is provided with two groups of rotor magnetic steels arranged relative to rotor disk radial symmetric, every group rotor magnet steel comprises 2N rotor magnetic steel respectively, and adjacent magnet steel spacing often in group is identical with magnet steel spacing adjacent on stator disc; Each rotor magnetic steel is also wound with enameled wire loop respectively, enameled wire loop in first group rotor magnet steel adopts the forward series connection identical with the enameled wire loop on magnetic steel of stator and differential concatenation mode to connect and compose the first magnet exciting coil, and the enameled wire loop in the second group rotor magnet steel also adopts the forward series connection identical with the enameled wire loop on magnetic steel of stator and differential concatenation connected mode to connect and compose the second magnet exciting coil.
The beneficial effects of the utility model:
The utility model disc type slow-speed of revolution double-fed generator, which overcoming conventional hidden pole type double-fed generator needs rotating speed high, the deficiencies such as grid-connected difficulty, conversion efficiency is high, for the low product such as gentle breeze, micro-water energy resource collecting, generating, reliable grid connection provide important technical guarantee.
Accompanying drawing explanation
Fig. 1 is the sectional perspective decomposition texture schematic diagram of the present embodiment disc type slow-speed of revolution double-fed generator;
Fig. 2 is the simplest single-phase converter topology diagram, wherein E1, E2-exciter converter DC side power supply, V1-V4-full-control type power electronic switching device, D1-D4-Power Diode Pumped, L1R1-first group of excitation winding, L2R2 second group of excitation winding;
Fig. 3 is stator output equivalent circuit theory diagrams.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment disc type slow-speed of revolution double-fed generator, comprise motor casing and armature spindle, described motor casing is provided with stator disc 1, described stator disc is along the circumferential direction furnished with successively 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; Each axial line of magnetic steel of stator 2 and the axis parallel of stator disc; Each magnetic steel of stator is wound with enameled wire loop, forward connects in the enameled wire loop on odd number magnet steel in the magnetic steel of stator of 4N+1 on stator disc, all the other enameled wire loop differential concatenations form output winding;
Described armature spindle is fixedly installed rotor disk 3, rotor disk is coaxial with stator disc, and circumferential on described rotor disk is provided with two groups of rotor magnetic steels 4 arranged relative to rotor disk radial symmetric, every group rotor magnet steel comprises 2N rotor magnetic steel respectively; And adjacent magnet steel spacing often in group is identical with magnet steel spacing adjacent on stator disc; Each rotor magnetic steel is also wound with enameled wire loop respectively, enameled wire loop in first group rotor magnet steel adopts the forward series connection identical with the enameled wire loop on magnetic steel of stator and differential concatenation mode to connect and compose the first magnet exciting coil, and the enameled wire loop in the second group rotor magnet steel also adopts the forward series connection identical with the enameled wire loop on magnetic steel of stator and differential concatenation connected mode to connect and compose the second magnet exciting coil.
The exciting current applying method of the utility model disc type slow-speed of revolution double-fed generator, the exciting curent of described first group rotor magnet steel applies by the sinusoidal rule containing compensation rate, the exciting curent of the second group rotor magnet steel applies by containing the cosine rule compensated, the exciting curent amplitude of two groups is identical, and amplitude applies by stator output voltage and idle requirement.
The present embodiment disc type slow-speed of revolution double-fed generator, when stationary rotor, the first magnet exciting coil can apply exciting current I
1=C
1sin (W
1t+ Ф
1), the second magnet exciting coil electric current can apply exciting current I
2=C
1cos (W
1t+ Ф
1) time, W
1be the magnet exciting coil exciting current angular speed, Ф
1be two magnet exciting coil exciting current first phase values, C
1it is the coefficient of stator output voltage or idle decision.
The voltage fundamental that stator induction exports is:
U
01=u
1+ u
2=C
2[cos (W
1t+ Ф
1)+i*sin (W
1t+ Ф
1)], wherein i is the imaginary part of output voltage vector; Voltage fundamental mould is U
0=C
2, be constant; u
1for exciting current I
1output voltage vector real part, the u of induction
2for exciting current I
2the output voltage vector imaginary part of induction;
As rotor excitation current angular speed W
1=0, when rotor rotates, stator by the voltage fundamental rotating output is:
U
02=C
3[sin (W
2t+ Ф
2)+i*cos (W
2t+ Ф
2)], W
2determined by rotor angular velocity of rotation and magnetic steel magnetic pole logarithm;
Due to u
01+ u
02meet overlaying relation after series connection, thus when magnetic curent change and rotor rotate time, total fundamental voltage output of voltage u
0=C
4[sin (W
1+ W
2) t+ (Ф
1+ Ф
2)]; C
4total output voltage amplitude, with exciting current amplitude and the decision such as angular speed, rotor speed; W
1exciting current angular frequency, W
2the induced voltage angular speed that rotor produces, Ф
1, Ф
2exciting current and rotor initial phase value.
As exciting current I
1during increase, output voltage C
2amplitude increases thereupon; As exciting current angular speed W
1during increase, output voltage frequency also increases thereupon; As exciting current phase place Ф
1during change, output voltage first phase also responds and changes thereupon.
The utility model disc type slow-speed of revolution double-fed generator and exciting current applying method thereof, which overcoming conventional hidden pole type double-fed generator needs rotating speed high, the deficiencies such as grid-connected difficulty, conversion efficiency is high, for the low product such as gentle breeze, micro-water energy resource collecting, generating, reliable grid connection provide important technical guarantee.
The axial cross section of magnetic steel of stator described in the present embodiment and rotor magnetic steel is all in I-shaped, so output voltage has certain harmonic wave, adopts exciting current applying method in the present embodiment can remove this harmonic components.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (1)
1. a disc type slow-speed of revolution double-fed generator, comprise motor casing and armature spindle, it is characterized in that: described motor casing is provided with stator disc, described stator disc is along the circumferential direction furnished with successively 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 and the axis parallel of stator disc; Each magnetic steel of stator is wound with enameled wire loop, forward connects in the enameled wire loop on odd number magnet steel in the magnetic steel of stator of 4N+1 on stator disc, all the other enameled wire loop differential concatenations form output winding;
Described armature spindle is fixedly installed rotor disk, rotor disk is coaxial with stator disc, circumferential on described rotor disk is provided with two groups of rotor magnetic steels arranged relative to rotor disk radial symmetric, every group rotor magnet steel comprises 2N rotor magnetic steel respectively, and adjacent magnet steel spacing often in group is identical with magnet steel spacing adjacent on stator disc; Each rotor magnetic steel is also wound with enameled wire loop respectively, enameled wire loop in first group rotor magnet steel adopts the forward series connection identical with the enameled wire loop on magnetic steel of stator and differential concatenation mode to connect and compose the first magnet exciting coil, and the enameled wire loop in the second group rotor magnet steel also adopts the forward series connection identical with the enameled wire loop on magnetic steel of stator and differential concatenation connected mode to connect and compose the second magnet exciting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039746.XU CN205160325U (en) | 2015-12-14 | 2015-12-14 | Disk slow -speed of revolution double -fed generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039746.XU CN205160325U (en) | 2015-12-14 | 2015-12-14 | Disk slow -speed of revolution double -fed generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160325U true CN205160325U (en) | 2016-04-13 |
Family
ID=55695969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521039746.XU Withdrawn - After Issue CN205160325U (en) | 2015-12-14 | 2015-12-14 | Disk slow -speed of revolution double -fed generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205160325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356706A (en) * | 2015-12-14 | 2016-02-24 | 重庆理工大学 | Low-rotation-speed disk-type doubly-fed generator and exciting current applying method thereof |
-
2015
- 2015-12-14 CN CN201521039746.XU patent/CN205160325U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356706A (en) * | 2015-12-14 | 2016-02-24 | 重庆理工大学 | Low-rotation-speed disk-type doubly-fed generator and exciting current applying method thereof |
| CN105356706B (en) * | 2015-12-14 | 2017-09-15 | 重庆理工大学 | Slow-speed of revolution disc type double-fed generator and its exciting current applying method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6008473B2 (en) | Generator and manufacturing method thereof | |
| CN104600930A (en) | Permanent magnet excitation brushless doubly fed wind power generator | |
| CN104201848A (en) | Double-stator permanent-magnet vernier wind driven generator | |
| Wang et al. | A novel brushless doubly fed generator for wind power generation | |
| CN101917101A (en) | Double-stator direct-drive permanent magnet wind powered generator | |
| CN104578630A (en) | Double-stator permanent magnet brushless doubly-fed wind generator | |
| CN201786562U (en) | Dual-stator direct drive permanent magnet wind-driven generator | |
| CN102983590A (en) | System and method for controlling direct power of open-winding brushless double-fed wind driven generator | |
| CN2865122Y (en) | Direct-driving permanent-magnetic wind-driven generator | |
| CN101615831A (en) | A kind of have a stator reversing double-rotor generator | |
| CN101615829B (en) | Stator-free double-rotor reverse rotating generator | |
| Melcescu et al. | Finite element analysis of a wind generator with two counter-rotating rotors | |
| CN205160325U (en) | Disk slow -speed of revolution double -fed generator | |
| CN102797637A (en) | Wind-driven generator with micro-power consumption | |
| CN110957822A (en) | Birotor magnetic flux switches aerogenerator and power generation system | |
| CN102710083B (en) | Hybrid-excited brushless DC wind power generator | |
| CN102882335B (en) | Axial magnetic flux permanent magnet induction wind-driven generator | |
| CN202326023U (en) | Novel wind generating set structure | |
| CN105356706B (en) | Slow-speed of revolution disc type double-fed generator and its exciting current applying method | |
| CN114123711A (en) | Surface-mounted permanent magnet variable voltage frequency converter based on magnetic field modulation principle and design method | |
| Zhang et al. | Design and analysis of 10MW brushless doubly fed generator for offshore wind turbine | |
| CN203617722U (en) | Novel wind generating set | |
| Magureanu et al. | EM FACTS for smart and microgrids applications | |
| Pistelok et al. | Highly efficient synchronous generators with permanent magnets intended to small hydropower station | |
| CN102496952A (en) | Novel wind generating set structure |
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: 20160413 Effective date of abandoning: 20170908 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20170915 |