CN102638134B - Inner feed motor of independent collector - Google Patents
Inner feed motor of independent collector Download PDFInfo
- Publication number
- CN102638134B CN102638134B CN2012101352687A CN201210135268A CN102638134B CN 102638134 B CN102638134 B CN 102638134B CN 2012101352687 A CN2012101352687 A CN 2012101352687A CN 201210135268 A CN201210135268 A CN 201210135268A CN 102638134 B CN102638134 B CN 102638134B
- Authority
- CN
- China
- Prior art keywords
- stator winding
- slip ring
- winding
- generator
- rotor
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The invention provides an inner feed motor of an independent collector so as to solve the following problems of the double feed motor: a slip ring fixed on a rotor shaft in a cantilever way is easy to shake to strike fire; the reliability of the slip ring and an electric brush is poor since the linear speed of the slip ring is high; the generating efficiency is low due to the meaningless circulation of slip power; and the loss is large since the output voltage is low. The inner feed motor of the independent collector provided by the invention comprises a generator body, a collector and a bidirectional converter, wherein a stator of the generator body comprises a first stator winding connected with a power grid, and a second stator winding connected with a first net end of the bidirectional converter; the collector is arranged between a second net end and a rotor winding of the bidirectional converter; and the bidirectional converter is connected with the second stator winding and the collector. According to the technical scheme of the inner feed motor, the diameter of the slip ring is reduced to lower the linear speed and improve the reliability, a simple beam structure is be used for effectively solving the problem of strike fire caused by the shaking of the slip ring, and the generating efficiency is improved by virtue of the second stator winding.
Description
Technical field
The present invention relates to machine field, especially, relate to a kind of interior feedback generator of independent sets electrical equipment.
Background technology
At present, wind-driven generator generally adopts double-fed wind power generator, and mainly asynchronous generator and the two way convertor by wound rotor forms.The stator winding of generator directly is connected with electrical network and to its generating, the rotor winding will be connected with additional supply through two way convertor by the current-collector consisted of with brush slip ring again, rotor is except the mechanical output of input wind-force, also according to the situation of rotation speed change, and additional supply carries out certain Power Exchange.Structure and principle due to above-mentioned double-fed wind power generator expose problem and shortage in actual motion:
1, the slip ring of current-collector is fixed on the armature spindle of generator, and be cantilever beam structure, therefore be subject to the effect of generator harmonic torque and other uneven torque, slip ring is shaken with armature spindle, and produce sparking formation spark with brush, thereby cause the ablation of slip ring and the wearing and tearing aggravation of brush; In addition, the diameter of slip ring is subject to the restriction of generator amature shaft diameter and larger, and corresponding the increasing of linear velocity of slip ring rotation causes the serious wear of brush thus, shortens Service Life of Carbon Brush.Above current-collector defect will cause the reliability of generator operation to reduce, and maintenance cost strengthens, and special under the particular surroundings of wind power generation, it is particularly outstanding that problem seems.
2, for fear of adapter transformer, and the additional supply of stator power generating source and rotor is unified, have to reduce the generating voltage of generator for this reason, for example double-fed wind generating generally adopts 690V at present, thereby cause the stator and rotor electric current of generator to increase, transmission line loss increases, and generating efficiency reduces.For realizing high-voltage power, just need between semiconductor variable flow control device and power supply, transformer be set, cause cost to improve.
3, when generator during in the metasynchronism generating state, rotor must absorb certain additional electrical power from external power, finally, by the stator coil feedback power, causes thus meaningless circulation and the loss of secondary power, increase the weight of power load and the heating of stator winding, and reduced generating efficiency.
4, convertor assembly is direct is connected with additional supply, and non-linear due to convertor assembly causes the electric current of rotor winding and external power supply to produce larger distortion, causes the harmonic pollution of electrical network.
Above-mentioned technical deficiency and defect all not yet have disclosed solution at present.
Particularly for the diameter of wind-driven generator slip ring in prior art, be subject to the restriction defect of generator amature shaft diameter, do not propose at present effective solution.
Summary of the invention
Main purpose of the present invention is to provide a kind of interior feedback generator of independent sets electrical equipment, is subject to the problem of the restriction of generator amature shaft diameter with the diameter that solves above-mentioned existing fed wind driven generator slip ring.
By the optimization to technical scheme, the every technical deficiency of above-mentioned existing double-fed wind power generator and defect have been solved in addition.
At first the solution of current-collector problem is described.For the slip ring that overcomes current-collector is shaken caused sparking defect, the present invention has adopted independent sets electrical equipment, be that current-collector no longer is fixed on the armature spindle of generator, but it is independently individual to become a structure, then, by the connection of machenical coupling and cable, independent sets electrical equipment and the contact of generator body are integral.This current-collector comprises: shaft coupling, with the armature spindle mechanical connection of generator body; The slip ring axle, be connected with shaft coupling, with the armature spindle synchronous rotary of generator body, and when generator body rotating operation, independent sets electrical equipment and generator synchronous rotary, slip ring wherein is relative with the rotor winding cable static, so both can be fixedly connected; Slip ring, be arranged on the slip ring axle, with the outlet of rotor winding, is connected; Brush, with the static conductive devices of slip ring close contact, be arranged on fixing collector plate, and the rotor winding is finally drawn by the collector plate of brush.
The shaft coupling of independent sets electrical equipment is with shock absorbing buffer, to absorb the shake of armature spindle.The slip ring axle adopts the simple beam structure of duplex bearing, to improve the ability that suppresses shake.The slip ring axle only carries the load of slip ring, irrelevant with generator load, so the diameter of slip ring axle reduces than generator rotor shaft, has reduced the linear velocity of slip ring.Above technical measures, overcome the defect of existing current-collector effectively, extended the useful life of slip ring, brush, also improved the operational reliability of generator.Based on this advantage, this generator is suitable for being fabricated to the high tacho generator of two utmost points.
Further, shaft coupling is the flange coupling with damping, buffering.
Further, the slip ring axle is the duplex bearing simple beam structure.
Further, current-collector is every arranges a plurality of slip rings in parallel mutually, to meet in rotor by the needs of large electric current.
Further, the shaft diameter of slip ring axle is less than the diameter of the rotating shaft of generator body.
Then the interior feedback technical scheme of generator is described.Contain the first stator winding and the second stator winding in the stator core of interior feedback generator body, two stator winding Tong Cao Clamp-on are put, and mutually insulated, between the two, are the relation of electromagnetic induction.The first stator winding is connected with electrical network, by the electric energy feed-in electrical network of generator.The induced potential of the second stator winding designs according to rotor electromotive force and speed adjustable range, and is connected with rotor by convertor assembly.Carry out certain Power Exchange between the second stator winding and rotor, when wind-driven generator, during in the metasynchronism running status, the second stator winding is exported certain electrical power by convertor assembly to rotor; And when wind-driven generator during in supersynchronous running status, the second stator winding absorbs the part electrical power of rotor by convertor assembly.The power of the second stator winding is because of the first stator winding, and final, the generated output of the first stator winding equals the power sum of rotor and the second stator, and result is the input mechanical output of deduction loss, wherein not containing meaningless secondary power.
Further, the first stator winding and the second stator winding are with the groove layout on stator core, and the second stator winding is positioned at the top of the first stator winding.
Further, the rated output voltage of the first stator winding is 6kV or 10kV.
Further, the second stator winding also is connected to compensating filter, and this compensator comprises: series inductance is connected between building-out capacitor and the second stator winding; Building-out capacitor, used the delta connection mode, with series inductance, is connected.Purpose is the current harmonics that improves the power factor of generator and suppress the second stator winding.
According to an aspect of the present invention, provide a kind of interior feedback generator of independent sets electrical equipment, in this, the feedback generator comprises: the generator body, comprise stator and rotor, and wherein, stator comprises: the first stator winding connects electrical network; The second stator winding, the first net that connects two way convertor is held; Rotor comprises: the rotor winding, with the slip ring of current-collector, be electrically connected to, and current-collector, be arranged between the second net end and rotor winding of two way convertor, and this current-collector comprises: shaft coupling is connected with the rotor axis mechanical of generator body; The slip ring axle, be connected with shaft coupling, with the rotating shaft synchronous rotary of generator body; Slip ring, be arranged on the slip ring axle, with the outlet of rotor winding, is connected; Brush, arrange with the slip ring coupling, connects the second net end of two way convertor, and two way convertor, be connected with current-collector with the second stator winding.
Further, the first stator winding and the second stator winding are with the groove layout on stator core, and the second stator winding is positioned at the top of the first stator winding.
Further, the rated output voltage of the first stator winding is 6kV or 10kV.
Further, the winding mode that the winding mode of the first stator winding is two-pole machine.
Further, shaft coupling is the flange coupling with damping, buffering.
Further, the slip ring axle is the duplex bearing simple beam structure.
Further, current-collector is every arranges a plurality of slip rings, a plurality of slip ring parallel runnings mutually.
Further, the shaft diameter of slip ring axle is less than the diameter of the rotating shaft of generator body.
Further, when wind-driven generator, during in the metasynchronism running status, two way convertor, for the output of the second stator winding is carried out to rectification, inversion, provides slip power to the rotor winding; When wind-driven generator, during in supersynchronous running status, two way convertor, for the output of rotor winding is carried out to rectification, inversion, provides slip power to the second stator winding.
Further, above-mentioned interior feedback wind-driven generator also comprises compensator, with the second stator winding, be connected, and under power frequency, be capacitive, compensator comprises: series inductance is connected between building-out capacitor and the second stator winding; Building-out capacitor, used the delta connection mode, with series inductance, is connected.
According to technical scheme of the present invention, current-collector independently is set between rotor winding and two way convertor, the diameter of its slip ring just no longer is subject to the restriction of wind driven generator principal shaft size, make structure more rational, can reduce linear velocity by the diameter that reduces slip ring, thereby overcome slip ring and wear of brush is serious, improved operational reliability, the first stator winding is exported electric energy to electrical network, between rotor winding and electrical network, directly be connected and Power Exchange, thereby avoided meaningless circulation and the loss of slip power, improved generating efficiency.
The accompanying drawing explanation
Figure of description is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the interior feedback generator of the independent sets electrical equipment of the embodiment of the present invention;
Fig. 2 is according to winding connection diagram in the interior feedback generator of the independent sets electrical equipment of the embodiment of the present invention;
Fig. 3 is the schematic diagram according to current-collector in the interior feedback generator of the independent sets electrical equipment of the embodiment of the present invention.
Embodiment
It should be noted that, in the situation that do not conflict, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The interior feedback generator of the independent sets electrical equipment that embodiments of the invention provide is the interior feedback wind-driven generator that is provided with independent sets electrical equipment, for the slip ring that overcomes current-collector is shaken caused sparking defect, be provided with independent sets electrical equipment, be that current-collector no longer is fixed on the armature spindle of generator, but independent the setting, then, by the connection of machenical coupling and lead-in wire, independent sets electrical equipment and the contact of generator body are integral.This current-collector comprises: shaft coupling, with the armature spindle mechanical connection of generator body; The slip ring axle, be connected with shaft coupling, with the armature spindle synchronous rotary of generator body, and when generator body rotating operation, independent sets electrical equipment and generator synchronous rotary, slip ring wherein is relative with the rotor winding leads static, so both can be fixedly connected; Slip ring, be arranged on the slip ring axle, with the outlet of rotor winding, is connected; Brush, with the static conductive devices of slip ring close contact, be arranged on fixing collector plate, and the rotor winding is finally drawn by the collector plate of brush.
The shaft coupling of independent sets electrical equipment is with shock absorbing buffer, to absorb the shake of armature spindle.The slip ring axle adopts the simple beam structure of duplex bearing, to improve the ability that suppresses shake.The slip ring axle only carries the load of slip ring, irrelevant with generator load, so the diameter of slip ring axle reduces than generator rotor shaft, has reduced the linear velocity of slip ring.Above technical measures, overcome the defect of existing current-collector effectively, extended the useful life of slip ring, brush, also improved the operational reliability of generator.Based on this advantage, this generator is suitable for being fabricated to the high tacho generator of two utmost points.Wherein, shaft coupling can be the flange coupling with damping, buffering; The slip ring axle can be the duplex bearing simple beam structure; Current-collector is every can arrange a plurality of slip rings in parallel mutually, to meet the needs of the large electric current of rotor.The shaft diameter of slip ring axle is less than the diameter of the rotating shaft of generator body, to reduce the linear velocity of slip ring.
In order to realize the interior feedback technical scheme of generator.Contain the first stator winding and the second stator winding in the stator core of the interior feedback generator body of the embodiment of the present invention, two stator winding Tong Cao Clamp-on are put, and mutually insulated, between the two, are the relation of electromagnetic induction.The first stator winding is connected with electrical network, by the electric energy feed-in electrical network of generator.The induced potential of the second stator winding designs according to rotor electromotive force and speed adjustable range, and is connected with rotor by convertor assembly.Carry out certain Power Exchange between the second stator winding and rotor, when wind-driven generator, during in the metasynchronism running status, the second stator winding is exported certain electrical power by convertor assembly to rotor; And when wind-driven generator during in supersynchronous running status, the second stator winding absorbs the part electrical power of rotor by convertor assembly.The power of the second stator winding is because of the first stator winding, and final, the generated output of the first stator winding equals the power sum of rotor and the second stator, and result is the input mechanical output of deduction loss, wherein not containing meaningless secondary power.Wherein, the first stator winding and the second stator winding are with the groove layout on stator core, and the second stator winding is positioned at the top of the first stator winding; The rated output voltage of the first stator winding is 6kV or 10kV, by improving voltage, reduces electric current, lowers the power loss of generator and circuit; The second stator winding can also be connected to compensating filter, and this compensator comprises: series inductance, be connected between building-out capacitor and the second stator winding, and building-out capacitor is used the delta connection mode, with series inductance, is connected.Purpose is the current harmonics that improves the power factor of generator and suppress the second stator winding.
Fig. 1 is the schematic diagram according to the interior feedback generator of the independent sets electrical equipment of the embodiment of the present invention, as shown in Figure 1, the interior feedback generator of this independent sets electrical equipment mainly comprises: generator body 1, comprise stator and rotor, wherein, stator comprises the first stator winding W1 and the second stator winding W3, wherein, the first stator winding W1 is connected with electrical network, for to electrical network, exporting electric energy, the second stator winding W3 connects the first net end of two way convertor 3, rotor comprises rotor winding W2, slip ring by current-collector and brush are connected to the second net end of two way convertor 3, rotor winding W2 and the second stator winding W3 are under the control of two way convertor 3, guarantee the first stator winding W1 constant frequency output electric energy, two way convertor 3, the both sides of this two way convertor 3 are connected with rotor winding W2 with the second stator winding W3 respectively, for changing the electric energy between the second stator winding W3 and rotor winding W2.
The rotor winding W2 of generator body 1 is connected with the second stator winding W3 via two way convertor 3, the second stator winding W3 and rotor winding W2 produce the exchange of slip electric energy, when the rotating speed of alternator shaft lower than synchronous speed, namely wind-driven generator is when the metasynchronism operating state, and the second stator winding W3 provides slip power to rotor winding W2.When generator speed, higher than synchronous speed, namely wind-driven generator is when supersynchronous operating state, and the second stator winding W3 absorbs slip power from rotor winding W2, thereby guarantees that motor runs on generating state all the time.Between the rotor winding W2 of generator body 1 and electrical network, directly be not electrically connected to and Power Exchange.Export electric energy to electrical network separately by the first stator winding W1.Under the theoretical case of ignoring stator winding loss and excitatory loss, the generating electrical power of the interior feedback generator of the independent sets electrical equipment of the embodiment of the present invention is the wind-powered machine input power, improve double-fed generator and absorbed or exported the problem of slip power from grid side, thereby avoided meaningless circulation and the loss of slip power.When controlling meritorious slip power, the second stator winding W3 also provides certain perceptual exciting curent to rotor winding W2, to improve the power factor of wind-driven generator.
Fig. 2 is according to winding connection diagram in the interior feedback generator of the independent sets electrical equipment of the embodiment of the present invention, as shown in the figure, the relation of the first stator winding W1 and the second stator winding W3 and the electromagnetic induction relation of transformer are roughly the same, the first stator winding W1 is equivalent to the former limit winding of transformer, and the second stator winding W3 is equivalent to the secondary winding of transformer.The induced voltage of the second stator winding W3 is designed flexibly according to rotor rated voltage and speed adjustable range, can select delta connection or star connection.The number of poles of the second stator winding W3 and the first stator winding W1 is identical with the number of phases, on stator core, with groove, arranges, the second stator winding W3 is positioned at the top of described the first stator winding W1, both mutually insulateds.
The embodiment of the present invention provides the current-collector 2 of the interior feedback generator of independent sets electrical equipment to be arranged between described rotor winding W2 and two way convertor 3, Fig. 3 is the schematic diagram according to current-collector in the interior feedback generator of the independent sets electrical equipment of the embodiment of the present invention, as shown in Figure 3, this current-collector 2 comprises: shaft coupling 5 is connected with the rotor axis mechanical of generator body 1; The slip ring axle, be connected with shaft coupling 5, and with the rotating shaft synchronous rotary of generator body 1, shaft diameter is less than the diameter of the rotating shaft of described generator body 1; Slip ring 6, be arranged on the slip ring axle, with the outlet of rotor winding W2, is electrically connected to; Brush 7, be electrically connected to two way convertor 3, with slip ring 6 couplings, arranges.These current-collector 2 Independents are placed in outside generator body 1, thereby guarantee that the diameter of slip ring 6 is not subject to generator body rotating shaft size impact, thereby can, according to the structural parameters of optimized operation effect design current-collector 2, make wind-driven generator structure more rational.Because current-collector 2 is external, be convenient to daily maintenance in addition, saved operating cost.
The embodiment of the present invention provides the rated voltage of the first stator winding W1 of the interior feedback generator of independent sets electrical equipment can be according to the rated voltage setting of electrical network, can coiling be the high pressure winding as required, rated output voltage is got 6kV or 10kV, can coiling be also the low pressure winding that rated output voltage is 690V, because electrical network does not need to provide additional supply to rotor winding W2 yet, thereby wind-driven generator can utilize the high pressure winding directly to high-voltage fence output electric energy, thereby the loss that has reduced generation current and caused thus.
The embodiment of the present invention provides the compensator 4 of the interior feedback generator of independent sets electrical equipment, it in the power frequency situation, is capacitive load, by low-voltage compensation capacitor and series inductance, formed, the series inductance of compensator is connected between the second stator winding W3 and low-voltage compensation capacitor, when generator is worked, the second stator winding W3 has the capacitive reactive power electric current by compensator 4, makes the second stator winding W3 produce the capacitive reactive power compensation power, thereby improves the power factor of generator.Simultaneously, compensator 4 can also provide the bypass of low reactance for the higher harmonic current in the second stator winding W3, play the effect of filter.The connected mode of low-voltage compensation capacitor can be used the triangle mode of connection.
The asynchronous generator generator operation, must meet two primary conditions: 1, mechanical separator speed n is higher than desired speed n
0, 2, electromagnetic torque T and mechanical separator speed reverse.For this reason, the interior feedback wind-driven generator of embodiments of the invention is normally moved, must be by speed regulating control to meet n>n
0, and control the direction of rotor winding active current, so that the opposite direction of itself and rotor open circuit potential.The interior feedback generator of the independent sets electrical equipment of the present embodiment feeds back by the second stator winding W3 and Variable flow control is realized above condition.Two way convertor 3 is comprised of two reversible 3-phase power converters of commutation inversion, these two 3-phase power converters can be divided into the second stator winding side converter and rotor winding side converter according to annexation, wherein, the second stator winding side converter connects the exit of the second stator winding W3 by the first net end of two way convertor 3, rotor winding side converter connects the exit of rotor winding W2 by the second net end of two way convertor 3.
The embodiment of the present invention provides the basic functional principle of the interior feedback generator of independent sets electrical equipment to be: when wind-driven generator metasynchronism generator operation, the second stator winding W3 provides slip power to rotor winding W2.When the supersynchronous generating of wind-driven generator, rotor winding W2 is to the second stator winding W3 output slip power.In addition, the control that two way convertor 3 also is ahead of rotor electromotive force by the rotor winding current makes rotor produce the exciting curent component, to improve the power factor of asynchronous generating.When the first stator winding W1 of generator body 1 switches on power, the rotating magnetic field that in the first stator winding W1, alternating current produces makes the second stator winding W3 induce power frequency electromotive force E3, and forms Power Exchange by electromagnetic induction and the second stator winding W3.The mechanical input power PM of generator body 1 is provided by wind motor, and when generator, during in the metasynchronism generating state, the second stator winding W3 is controlled by voltage and the frequency of two way convertor 3, and to the rotor winding, W2 confesses slip power P
es.The second stator winding W3 is in from rotor winding W2, absorbing energy state, and rotor winding W2 is in the output energy state.Electromagnetic power-the P of rotor generating
em(take electric power as with reference to positive direction) is mechanical output-P
mslip power-the P provided with the second stator winding W3
essum ,-P
em=-(P
m+ P
es).The first stator winding W1, on the one hand to the second stator winding W3 power supply, obtains again the electromagnetic power of generating, on the other hand so the power P 1 of stator is rotor generated output and the second stator winding W3 electric power sum, i.e. P from rotor winding W2
1=-P
em+ P
es=-P
mso in the situation that ignore loss, output and the slip power absorbed are offset in stator, namely the second electronics winding W3 provides the additional supply in the generator operation, thereby, the generated output of the first stator winding W1 is only mechanical input power, and unlike contain slip power P as double-fed generator
esso, avoided the meaningless circulation of slip power, and the power loss caused thus.
The interior feedback generator of the independent sets electrical equipment provided when the present embodiment is during in supersynchronous generating, and rotor winding W2 need to be by the slip power P in mechanical output
esby current-variable controller 3 feed-in the second stator winding W3, remaining rotor electromagnetic power is transferred to the first stator winding W1 through electromagnetic induction, and the generating electromagnetic power of rotor winding W2 is mechanical output P
mwith slip power P
espoor ,-P
em=-(P
m-(P
es), the generated output sum that stator power is rotor winding W2 and the second stator winding W3, i.e. P
1=-(P
em+ P
esthe P of)=-
m, the generated output of generator does not still contain slip power for mechanical input power.
As can be seen here, the generated output of the interior feedback generator of the independent sets electrical equipment that the present embodiment provides is only by the first stator winding W1 output, and rotor winding W2 is externally generating not.In addition, the mechanical output that the generating active power of the first stator winding W1 is the wind-force input, wherein do not contain the slip power of speed regulating control, thereby avoided slip power in the meaningless circulation of electrical network-rotor-stator-electrical network and the loss caused thereof, generating efficiency is improved.
According to technical scheme of the present invention, current-collector 2 independently is set between rotor winding and two way convertor, the diameter of its slip ring 6 just no longer is subject to the restriction of generator body main shaft size, make structure more rational, can reduce linear velocity by the diameter that reduces slip ring 6, thereby overcome slip ring and wear of brush is serious, improved operational reliability, the first stator winding W1 exports electric energy to electrical network, between rotor winding W2 and electrical network, directly be connected and Power Exchange, thereby avoided meaningless circulation and the loss of slip power, improved generating efficiency.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. the interior feedback generator of an independent sets electrical equipment, is characterized in that, comprising:
The generator body, comprise stator and rotor, wherein,
Described stator comprises: the first stator winding connects electrical network; The second stator winding, the first net that connects two way convertor is held; Described the first stator winding and the second stator winding are with the groove layout on stator core, and described the second stator winding is positioned at the top of described the first stator winding;
Described rotor comprises: the rotor winding, with the slip ring of current-collector, be electrically connected to,
Described current-collector, be arranged between the second net end and described rotor winding of described two way convertor, comprising:
Shaft coupling, be connected with the rotor axis mechanical of described generator body;
The slip ring axle, be connected with described shaft coupling, with the rotating shaft synchronous rotary of described generator body;
Slip ring, be arranged on described slip ring axle, with the outlet of described rotor winding, is connected;
Brush, arrange with described slip ring coupling, connects the second net end of described two way convertor,
Described two way convertor, be connected with described current-collector with described the second stator winding,
Described interior feedback generator also comprises compensator, with described the second stator winding, is connected, and under power frequency, be capacitive, described compensator comprises:
Series inductance, be connected between building-out capacitor and described the second stator winding;
Building-out capacitor, used the delta connection mode, with described series inductance, is connected.
2. interior feedback generator according to claim 1, is characterized in that, the rated output voltage of described the first stator winding is 6kV or 10kV.
3. interior feedback generator according to claim 1, is characterized in that the winding mode that the winding mode of described the first stator winding is two-pole machine.
4. interior feedback generator according to claim 1, is characterized in that, described shaft coupling is the flange coupling with damping, buffering.
5. interior feedback generator according to claim 1, is characterized in that, described slip ring axle is the duplex bearing simple beam structure.
6. interior feedback generator according to claim 1, is characterized in that, described current-collector is every arranges a plurality of described slip rings, described a plurality of described slip ring parallel runnings mutually.
7. according to the interior feedback generator described in claim 1, it is characterized in that, the shaft diameter of described slip ring axle is less than the diameter of the rotating shaft of described generator body.
8. according to the described interior feedback generator of any one in claim 1 to 7, it is characterized in that, described generator body is wind-driven generator,
When described wind-driven generator, during in the metasynchronism running status, described two way convertor, for the output of described the second stator winding is carried out to rectification, inversion, provides slip power to described rotor winding;
When described wind-driven generator, during in supersynchronous running status, described two way convertor, for the output of described rotor winding is carried out to rectification, inversion, provides slip power to described the second stator winding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101352687A CN102638134B (en) | 2012-05-02 | 2012-05-02 | Inner feed motor of independent collector |
| PCT/CN2013/074385 WO2013163923A1 (en) | 2012-05-02 | 2013-04-19 | Inner-fed generator of independent current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101352687A CN102638134B (en) | 2012-05-02 | 2012-05-02 | Inner feed motor of independent collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102638134A CN102638134A (en) | 2012-08-15 |
| CN102638134B true CN102638134B (en) | 2013-12-11 |
Family
ID=46622421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101352687A Expired - Fee Related CN102638134B (en) | 2012-05-02 | 2012-05-02 | Inner feed motor of independent collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102638134B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013163923A1 (en) * | 2012-05-02 | 2013-11-07 | 屈湘竹 | Inner-fed generator of independent current collector |
| CN105591480B (en) * | 2016-03-18 | 2018-06-08 | 山东大学 | Stator winding autocoupling type tandem double-fed generator and its method of work |
| CN110176814B (en) * | 2019-06-04 | 2021-11-30 | 青岛大学 | High-low voltage double-winding three-phase squirrel-cage induction generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5739618A (en) * | 1995-02-13 | 1998-04-14 | Asea Brown Boveri Ag | Electric synchronous machine having slip rings arranged outside the machine housing, and a method for producing it |
| CN2842818Y (en) * | 2005-06-06 | 2006-11-29 | 柴庆岭 | Woundrotor motor collector assembly |
| CN101127429A (en) * | 2007-07-13 | 2008-02-20 | 保定北方调速有限公司 | A power collection device for electromotor rotor coiling |
| CN201629636U (en) * | 2009-09-18 | 2010-11-10 | 赵金荣 | High-reliability current collector device |
| CN102420501A (en) * | 2011-12-30 | 2012-04-18 | 南车株洲电机有限公司 | Motor and slip ring seat mechanism for motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201868971U (en) * | 2010-11-26 | 2011-06-15 | 山东电力研究院 | Internal double-fed wind-driven generator |
| CN202488288U (en) * | 2012-05-02 | 2012-10-10 | 屈湘竹 | Inner feedback generator with independent current collector |
-
2012
- 2012-05-02 CN CN2012101352687A patent/CN102638134B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5739618A (en) * | 1995-02-13 | 1998-04-14 | Asea Brown Boveri Ag | Electric synchronous machine having slip rings arranged outside the machine housing, and a method for producing it |
| CN2842818Y (en) * | 2005-06-06 | 2006-11-29 | 柴庆岭 | Woundrotor motor collector assembly |
| CN101127429A (en) * | 2007-07-13 | 2008-02-20 | 保定北方调速有限公司 | A power collection device for electromotor rotor coiling |
| CN201629636U (en) * | 2009-09-18 | 2010-11-10 | 赵金荣 | High-reliability current collector device |
| CN102420501A (en) * | 2011-12-30 | 2012-04-18 | 南车株洲电机有限公司 | Motor and slip ring seat mechanism for motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102638134A (en) | 2012-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101871433B (en) | Variable-speed constant-frequency wind power generation device having energy storing device | |
| CN101487453B (en) | Variable-speed constant-frequency wind power generation plant | |
| CN105429407A (en) | Magnetic gear motor with continuously adjustable speed ratio | |
| CN202142938U (en) | Large-scale direct driving dial switch magnetic resistance wind driven generator and system thereof | |
| CN101291068A (en) | Driving system for wind power generation of parallel net type with generated power totally monitored | |
| CN102508160A (en) | Synchronous generator and full-power converter testing system | |
| CN102638134B (en) | Inner feed motor of independent collector | |
| CN201344102Y (en) | Wind-power generator | |
| CN107317457A (en) | A kind of permanent magnet coupling buncher | |
| CN202435219U (en) | Brushless double-fed motor | |
| CN207053364U (en) | A kind of permanent magnet coupling buncher | |
| CN103390946A (en) | Brushless double-fed wind turbine generator with high power density | |
| CN201528280U (en) | Full power direct-drive type flexible grid-connection current transformer for wind turbine | |
| CN202488288U (en) | Inner feedback generator with independent current collector | |
| CN101741174A (en) | Multi-output combining wind power generating set | |
| CN101783643A (en) | Permanent magnetic brushless constant voltage generator and voltage stabilizing method thereof | |
| CN102280968A (en) | Large direct-driving disk type switch reluctance wind power generator and system thereof | |
| CN102163896B (en) | Brushless double-fed motor | |
| CN202586681U (en) | Brushless double feeding asynchronous motor | |
| CN202435218U (en) | Axial brushless doubly-fed motor | |
| CN101154838A (en) | Electrical excitation double salient-pole aerogenerator with wide range of rotation speed | |
| CN111756142A (en) | Single-phase generator short-circuit current limiting structure | |
| CN102723739B (en) | Wind generator system | |
| CN112671014A (en) | Flywheel energy storage variable speed power generation system | |
| CN106532777A (en) | Novel high-voltage DC wind power generator set and group network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20180502 |