CN203261211U - Stator self-excitation synchronous motor with dual cage barrier rotors - Google Patents
Stator self-excitation synchronous motor with dual cage barrier rotors Download PDFInfo
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- CN203261211U CN203261211U CN 201320154856 CN201320154856U CN203261211U CN 203261211 U CN203261211 U CN 203261211U CN 201320154856 CN201320154856 CN 201320154856 CN 201320154856 U CN201320154856 U CN 201320154856U CN 203261211 U CN203261211 U CN 203261211U
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Abstract
The utility model relates to a stator self-excitation synchronous motor with dual cage barrier rotors. The dual-cage barrier-rotor stator self-excitation synchronous motor is characterized in that an inner rotor and an outer rotor are positioned on the inner side and the outer side of a stator respectively; three-phase symmetric armature windings and single-phase exciting windings are arranged in grooves in the inner surface and the outer surface of the stator; the same cage barrier rotor modules are spliced on the side which is close to the stator along the peripheral direction to form one rotor with a salient pole; each cage barrier rotor module is connected with a sleeve through a positioning groove and is provided with a plurality of trapezoid grooves; short-circuit cage bars are put into the trapezoid grooves; a stepped breach is formed in the joint of the adjacent cage barrier rotor modules; and after the adjacent modules are spliced, a public trapezoid groove is formed in the joint of the adjacent cage barrier rotor modules, the depth of a gap at the bottom of the groove reaches the surface of the sleeve, and public cage bars are put into the public trapezoid grooves. The utility model aims to provide the novel stator self-excitation synchronous motor with the dual cage barrier rotors, which is convenient to manufacture, capable of realizing the brushless self-excitation of the stator, high in power density, and good in steady and dynamic properties.
Description
Technical field:
The utility model relates to a kind of alternating current machine, and particularly a kind of pair of cage hinders rotor stator self-excitation synchronous machine and control method thereof.This motor both can have been done the motor operation, can make generator operation again.
Background technology:
The single-phase symmetrical excitation winding (the perhaps single-phase symmetrical excitation winding of the three-phase symmetrical armature winding of the 2q utmost point and the 2p utmost point) that comprises three-phase symmetrical armature winding and the 2q utmost point of the 2p utmost point on the stator of two cage barrier rotor stator self-excitation synchronous machines, and satisfy 2p-2q 〉=4, the coupling between the double winding is by p
r=p+q realizes the rotor of utmost point particular design, therefore this kind motor need not to install electric brush slip ring, can compare the running reliability of motor height with conventional synchronous machine by the interaction realization energy converting between mechanical in excitation winding magnetic field and armature winding magnetic field, maintenance cost is low.The rotor structure that can be used for this kind motor mainly comprises Wound-rotor type and reluctance type two large classes.Wherein Wound-rotor type comprises individual layer concentric type short-circuited winding, the double-deck distributed winding of slot ripples; The magnetic resistance class comprises the radially lamination salient pole reluctance rotor with teeth groove, axial lamination reluctance rotor.
The advantage of coiling class rotor structure be manufacturing process and conventional electric machinery seemingly, shortcoming is that coupling to the stator double winding is fully to sacrifice rotor winding copper loss as cost, and it is not good enough to stator double winding coupling ability, the dynamic property of motor is also relatively poor, and the manufacturability of the double-deck distributed winding of slot ripples is not good enough.The advantage of magnetic resistance class rotor be on the rotor without any copper loss, different to stator double winding coupling ability and processed complex degree.Radially lamination salient pole reluctance rotor with teeth groove is easy to processing, but not good enough to the coupling effect of stator double winding; Axially the coupling ability of lamination reluctance rotor is strong, but manufacturing process is complicated, application difficult in large-size stator double winding alternating current machine.
Summary of the invention
Goal of the invention: the utility model provides a kind of pair of cage barrier rotor stator self-excitation synchronous machine and control method thereof, its purpose is to have proposed a kind of processing and manufacturing of both being convenient to, again can be so that stator double winding coupling ability be realized maximization, thus novel pair of cage with high power density and good stable state and dynamic property hinders rotor stator self-excitation synchronous motor structure.
Technical scheme: the utility model by the following technical solutions:
Two cage barrier rotor stator self-excitation synchronous machines, mainly comprise stator, internal rotor, external rotor controllable direct current power supply, it is characterized in that: internal rotor and external rotor lay respectively at the inside and outside both sides of stator, two rotors link together by ring flange is coaxial, the single-phase symmetrical excitation winding that wherein three-phase symmetrical armature winding and the 2q utmost point of the 2p utmost point are all laid in both sides inside and outside the stator, perhaps the number of poles of the number of poles of armature winding and excitation winding exchanges, and all satisfies 2p-2q 〉=4; Internal rotor and external rotor are respectively by p
r=p+q identical cage barrier rotor module along the circumferential direction is combined into and has p
rThe rotor of individual salient pole type, the sleeve that make by location notch and non-magnet material cage barrier internal rotor module inboard links to each other, and sleeve is fixed together by the alignment pin in the rotating shaft and rotating shaft; The sleeve that make by location notch and non-magnet material in the external rotor cage barrier module outside links to each other; Each cage barrier internal rotor module outer surface has a plurality of radially dovetail grooves, each cage barrier external rotor module inner surface has a plurality of radially dovetail grooves, for internal rotor and external rotor, radially the dovetail groove spacing equates or does not wait, all dovetail grooves radially have several ladder groove widths that does not wait, put into some conductors in each dovetail groove and form short circuit cage bar, adjacent cage barrier rotor module joint is the notch cuttype gap, forms p in its joint after the splicing of adjacent cage barrier rotor module
rIndividual public dovetail groove, and the module gap depth of public dovetail groove bottom reaches sleeve surface always, and each public dovetail groove radially has several ladder groove widths that does not wait, and puts into some conductors in each public dovetail groove and forms public cage bar; Public cage bar and short circuit cage bar adopt respectively the end conducting ring to be connected to form the galvanic circle; Cage barrier internal rotor module and cage barrier external rotor module centers place all have many groups tangentially every magnetosphere, and the dovetail groove that embeds short circuit cage bar with both sides separately respectively is combined to form organizes radially lamination magnetic barrier, a plurality of magnetic layers of formation in cage barrier rotor module more.
Armature winding links to each other with electrical network, and excitation winding links to each other with an end of controllable direct current power supply, and the controllable direct current power supply other end links to each other with electrical network.
The notch place of placing the dovetail groove of public cage bar and short circuit cage bar has interior gap and embeds slot wedge; Public cage bar end link form is: the end conducting ring all connects together the public cage bar both side ends with layer in the public dovetail groove; Or the public cage bar of individual layer in the public dovetail groove is divided into two parts, the public cage bar of two parts links to each other by the end conducting ring with the public cage bar of layer respectively with in the adjacent public dovetail groove; Or the public cage bar of public dovetail groove ectonexine linked to each other by the end conducting ring with the public cage bar of internal layer in the one-sided adjacent public dovetail groove; Or in adjacent two public dovetail grooves, place the multiturn coil conductor; Short circuit cage bar end link form is: centered by cage barrier rotor module radial symmetric line, the same layer short circuit cage bar end that both sides are corresponding links to each other by conductor, forms and organizes independently concentric type annular galvanic circle more; Or outer short circuit cage bar is continuous by conductor with the internal layer short circuit cage bar of corresponding dovetail groove, form and organize independently chiasma type concentric type loop checking installation more; Or in two corresponding same layer dovetail grooves, place the multiturn coil conductor, the many groups coil-conductor number of turn on the same rotor module is identical also can be different.
Pressing plate is equipped with respectively at the two ends of cage barrier internal rotor and external rotor, add insulator separation between pressing plate and rotor, be drilled with the location hole identical with cage barrier rotor position of positioning hole on the pressing plate, the clamping screw that non-magnet material is made passes whole location holes vertically, utilizes nut to be fixed at the pressing plate two ends.
Internal rotor and external rotor are installed the high temperature resistant non-magnet material or do not cast of can casting in the magnetic barrier slit in public dovetail groove slit remaining behind the winding and the module.
The location notch form that is used for the installation rotor module on the sleeve is rectangular channel or dovetail groove; The form of internal rotor sleeve is circular sleeve or polygon sleeve.
Rotor module hinders slit or U-shaped magnetic barrier slit every the arc magnetic that is shaped as of magnetosphere.
Advantageous effect: the utility model provides a kind of novel pair of cage barrier rotor stator self-excitation synchronous machine, this kind alternating current machine has the inside and outside both sides of stator winding all is installed, either side 2 cover stator winding have all that coupling ability is strong, power density and the high characteristics of energy converting between mechanical efficient, and this electric machine structure modularization, technique be simple, be convenient to make large ac machines.
The beneficial effects of the utility model are: the rotor of this motor adopts radially lamination magnetic barrier and many group cage bar composite structures, when further improving rotor magnetic coupling ability, can effectively reduce Gas-gap Magnetic Field Resonance Wave and loss, improve power density and the runnability of motor; Rotor pack radially laminates, and can reduce the eddy current loss in the rotor core, improves electric efficiency; The salient pole centerline is placed conduction cage bar, adopts hierarchical design, can effectively overcome faradic kelvin effect; Excitation winding is placed in stator side and realizes brushless excitation, compares with conventional synchronous machine, need not to install coaxial excitation system or electric brush slip ring device, the motor Reliability Enhancement; Along one week of rotor by p
rIndividual identical stack of laminations consists of, and such symmetrical structure can realize only processing a kind of lamination just can be assembled into whole rotor, thereby has greatly reduced process costs, is convenient to batch production.This kind Novel composite rotor has novel structure, technique is simple, with low cost, mechanical strength is high, reliable, structural module, be convenient to the significant advantage of the aspects such as industrialization.
Description of drawings
Fig. 1 is the two cage barrier of the utility model rotor stator self-excitation synchronous motor system structural representation;
Fig. 2 is a kind of stator structure schematic diagram of the utility model motor;
Fig. 3 is the another kind of stator structure schematic diagram of the utility model motor;
Fig. 4 is a kind of inner rotor core schematic diagram of the utility model motor;
Fig. 5 is a kind of internal rotor modular structure schematic diagram of the utility model motor;
Fig. 6 is the utility model motor internal rotor pressure plate structure schematic diagram;
Fig. 7 is the utility model motor the second inner rotor core schematic diagram;
Fig. 8 is a kind of outer-rotor structure schematic diagram of the utility model motor;
Fig. 9 is a kind of external rotor modular structure schematic diagram of the utility model motor;
Figure 10 is the utility model motor outer rotor pressure plate structure schematic diagram;
Figure 11 is a kind of structural representation that the utility model motor internal rotor is only installed public cage bar;
Figure 12 is a kind of end connected mode schematic diagram of the public cage bar of the utility model motor;
Figure 13 is a kind of end connected mode expanded view of the public cage bar of the utility model motor;
Figure 14 is the second connected mode expanded view of the public cage bar of the utility model motor;
Figure 15 is the third connected mode end linked, diagram of the public cage bar of the utility model motor;
Figure 16 is a kind of connected mode schematic diagram of the utility model motor short circuit cage bar;
Figure 17 is the utility model motor short circuit cage bar the second connected mode end linked, diagram;
Figure 18 is the public cage bar of the utility model motor and short circuit cage bar scheme of installation;
Figure 19 is the second connected mode expanded view of the public cage bar of the utility model motor and short circuit cage bar;
Description of reference numerals:
1. stator; 2. internal rotor; 3. external rotor; 4. controllable direct current power supply; 5. electrical network; 6. armature winding; 7. excitation winding; 8. every magnetosphere; 9. magnetic layer; 10. public cage bar; 11. short circuit cage bar; 12. location hole; 13. location notch; 14. sleeve; 15. rotating shaft; 16. module gap; 17. slot wedge; 18. end conducting ring.
Embodiment
Below in conjunction with accompanying drawing the utility model is specifically described:
Fig. 1 is the two cage barrier of the utility model rotor stator self-excitation synchronous motor system structural representation, this system mainly comprises stator 1, internal rotor 2, external rotor 3, controllable direct current power supply 4, internal rotor 2 and external rotor 3 lay respectively at the inside and outside both sides of stator 1, two rotors link together by ring flange is coaxial, the three-phase symmetrical excitation winding 7 that wherein three-phase symmetrical armature winding 6 and the 2q utmost point of the 2p utmost point are all laid in both sides inside and outside the stator 1, the number of poles of the number of poles of armature winding 6 and excitation winding 7 is also interchangeable, but all satisfy 2p-2q 〉=4, can realize the winding electric magnetic coupling maximization of the different numbers of poles of one-sided two covers of stator.Armature winding 6 links to each other with electrical network 5, and excitation winding 7 links to each other with controllable direct current power supply 4.The voltage of adjustable amplitude is provided by 4 pairs of excitation winding 7 of controllable direct current power supply, can regulate these armature winding 6 output voltages and power factor (as generator), also can common rotating speed and the torque (as motor) of exporting of two rotors of regulating electric machine output.
Fig. 2 is the utility model motor stator structure schematic diagram, stator 1 outer surface and inner surface are evenly slotted, all embed the independent symmetric winding that two cover numbers of poles are respectively the 2p utmost point and the 2q utmost point in two side channels, be armature winding 6 and excitation winding 7, embed the multilayer winding in each groove, between every layer of winding insulation is arranged, double winding can adopt bilayer or single layer winding, pitch can be whole distance or short distance, armature winding 6 can be connected or parallel connection in stator 1 inside and outside two side channels, and the excitation winding 7 in inside and outside two side channels can also be connected or be in parallel.
Fig. 3 is the another kind of stator structure schematic diagram of the utility model motor, the radial centre lines of stator 1 inner side slot overlaps with tooth section radial centre lines between the adjacent slot of the outside, its objective is so that the groove of inside and outside both sides angle of mutual deviation along the circumferential direction, so that all stator slot bottoms are staggered at stator center annulus place, reduce the stator yoke width, and then reduce iron loss and stator volume, improve electric efficiency and power density.
Fig. 4 is a kind of inner rotor core schematic diagram of the utility model motor, and described internal rotor adopts p
rIndividual identical cage barrier internal rotor module along the circumferential direction is combined into one and has p
rThe internal rotor of individual salient pole type, the sleeve 14 that make by location notch 13 and non-magnet material each cage barrier internal rotor module inboard links to each other.
Fig. 5 is the internal rotor module diagram of the utility model motor, each module outer surface has a plurality of radially dovetail grooves, each dovetail groove radially has several ladder groove widths that does not wait, put into some conductors in each dovetail groove and form short circuit cage bar 11, in order to save cost and to simplify technique and also can only in the part dovetail groove, put into conductor composition short circuit cage bar 11; In addition, adjacent cage barrier internal rotor module joint is the notch cuttype gap, form a public dovetail groove in its joint after the splicing of two adjacent cage barrier internal rotor modules, and module gap 16 degree of depth of public dovetail groove bottom reach sleeve 14 outer surfaces always, main purpose is isolation adjacent block magnetic flux, so that magnetic circuit is separate without coupling between each module, improve the coupling performance of the inboard double winding of this stator, whole internal rotor 2 outer surfaces have p
rIndividual so public dovetail groove is with p
rThe along the circumferential direction magnetic isolation of individual cage barrier rotor module, because sleeve 14 is non-magnet material, so also be non-magnetic between each cage barrier internal rotor module, each module is all separate aspect structure and magnetic circuit two, each public dovetail groove radially has several ladder groove widths that does not wait, and puts into some conductors in each public dovetail groove and forms public cage bar 10.The notch place of placing the dovetail groove of public cage bar 10 and short circuit cage bar 11 has interior gap and embeds slot wedge 17, is used for fixing cage bar in the groove.Be greater than or equal to the well width of close rotating shaft in the dovetail groove near the well width of air gap, its objective is in order to overcome faradic kelvin effect, the cage bar number of plies in the dovetail groove can be individual layer or multilayer, quantity according to ladder in the step trough is chosen the number of plies, between each layer, all be added with insulation between cage bar and the rotor and isolate, the cage bar is joined together to form the loop by the end, and it all is 2 that the utility model is chosen the number of plies, and the outer groove width of internal rotor is greater than the internal layer groove width.Cage barrier rotor module center has many groups tangentially every magnetosphere 8 among Fig. 4, the dovetail groove that embeds short circuit cage bar with both sides separately respectively is combined to form the U-shaped radially lamination magnetic barrier of many groups, in cage barrier rotor module, form a plurality of magnetic layers 9, its objective is the increase quadrature-axis reluctance, reduce direct axis reluctance, be convenient to magnetic flux along the path circulation that is conducive to magnetic field modulation.There are a plurality of location holes 12 medial septal magnetosphere inside and the lateral septal magnetosphere outside of each internal rotor cage barrier module.
Fig. 6 is the utility model motor internal rotor pressure plate structure schematic diagram, the internal rotor pressing plate is positioned at cage barrier inner rotor shaft to two ends, identical with the internal rotor outer contour shape, add insulator separation between pressing plate and internal rotor, be drilled with on the pressing plate with cage barrier internal rotor location hole 12(and see Fig. 4) the identical location hole 12 in position, the clamping screw that non-magnet material is made passes whole location holes 12 vertically, add the insulation isolation between clamping screw and rotor module, utilize nut to be fixed at the pressing plate two ends, the clamping screw that passes in the location hole of the outside has played the axial compression effect to cage barrier rotor module, also in order to resist the centrifugal force that bears when rotor module is rotated.The trapezoid slit that the pressing plate outside is identical with shape with internal rotor dovetail groove same position, public cage bar 10 and short circuit cage bar 11 pass from this slit, carry out the end and link.
Fig. 7 is the second inner rotor core schematic diagram of the utility model motor.This motor outer rotor can be divided into two classes according to the shape every magnetosphere: arc magnetic barrier formula outer-rotor structure (as shown in Figure 7) and U-shaped magnetic barrier formula outer-rotor structure (as shown in Figure 4), multi-form external rotor can play the effect that limits magnetic flux path every magneto spheric structure, so that magnetic flux is along the path circulation that is conducive to magnetic field modulation.This motor outer rotor can be divided into two classes according to sleeve fluting form: rectangular channel (as shown in Figure 4) and dovetail groove (as shown in Figure 7).
Fig. 8 is a kind of outer-rotor structure schematic diagram of the utility model motor, and described external rotor adopts p
rIndividual identical cage barrier external rotor module along the circumferential direction is combined into one and has p
rThe external rotor of individual salient pole type, the sleeve 14 that make by location notch 13 and non-magnet material in each cage barrier external rotor module outside links to each other.
Fig. 9 is the cage barrier external rotor module diagram of the utility model motor, each module inner surface has a plurality of radially dovetail grooves, each dovetail groove radially has several ladder groove widths that does not wait, put into some conductors in each dovetail groove and form short circuit cage bar 11, in order to save cost and to simplify technique and also can only in the part dovetail groove, put into conductor; In addition, adjacent cage barrier external rotor module joint is the notch cuttype gap, form a public dovetail groove in its joint after the splicing of two adjacent cage barrier external rotor modules, and module gap 16 degree of depth of this trench bottom reach sleeve 14 inner surfaces always, main purpose is isolation adjacent block magnetic flux, so that magnetic circuit is separate without coupling between each module, improve the coupling performance of this motor double winding, whole external rotor inner surface has p
rIndividual so public dovetail groove is with p
rThe along the circumferential direction magnetic isolation of individual cage barrier external rotor module, because sleeve 14 is non-magnet material, so also be non-magnetic between each cage barrier external rotor module, each module is all separate aspect structure and magnetic circuit two, each public dovetail groove radially has several ladder groove widths that does not wait, and puts into some conductors in each public dovetail groove and forms public cage bar 10.The notch place of placing the dovetail groove of public cage bar 10 and short circuit cage bar 11 has interior gap and embeds slot wedge 17, is used for fixing cage bar in the groove.Be greater than or equal to the well width of close sleeve 14 in all dovetail grooves near the well width of air gap, its objective is in order to overcome faradic kelvin effect, the cage bar number of plies in the sulculus can be individual layer or multilayer, quantity according to ladder in the step trough is chosen the number of plies, between each layer, all be added with insulation between cage bar and the rotor and isolate, the cage bar is joined together to form the loop by the end, and the inner layer groove that the utility model is chosen the external rotor dovetail groove is wider than outer groove width.Cage barrier external rotor module centers place has many groups tangentially every magnetosphere 8 among Fig. 8, the inverted trapezoidal groove that embeds short-circuited winding with both sides separately respectively is combined to form the U-shaped radially lamination magnetic barrier of many groups, in cage barrier external rotor module, form a plurality of magnetic layers 9, its objective is the increase quadrature-axis reluctance, reduce direct axis reluctance, be convenient to magnetic flux along the path circulation that is conducive to magnetic field modulation.There are a plurality of location holes 12 the lateral septal magnetosphere outside of each external rotor cage barrier module.
Magnetic circuit is independent between all internal rotors and the external rotor cage barrier module, adding after magnetosphere 8 forms U-shaped radially lamination magnetic barrier, its magnetic field transfer capability obviously improves, and more every the magnetosphere number, effect is just more obvious, but when magnetosphere was too many, its cost can increase again, therefore should be chosen as the suitable number of plies every magnetosphere.In addition, each magnetic layer width can equate or not wait, width then embeds short circuit cage bar when not waiting dovetail groove spacing does not wait, can change air-gap reluctance and distribute, weaken unfavorable magnetic field harmonic amplitude, strengthen useful magnetic field harmonic amplitude, improve the coupling ability of corresponding stator double winding, reduce supplementary load loss, improve the performance of motor, when not high to performance requirement, also can adopt the identical magnetic layer of width.
The cage of all internal rotors and external rotor barrier module is not installed the inverted trapezoidal line of rabbet joint crack of winding and pourable epoxy resin or by other high temperature resistant non-magnet material in magnetosphere, its order is to strengthen external rotor intensity and winding is positioned, also can not pour into a mould and utilize the gap ventilation heat radiation, reduce the temperature rise of motor, improve motor performance, and still can make so the not coupling of magnetic circuit of each intermodule.Cage barrier rotor module adopts lamination axially to be overrided to form, and its purpose can reduce the eddy current loss in the rotor core, improves electric efficiency.Rotor adopts modular form, just can be assembled into whole rotor so that only process a kind of rotor module, has greatly reduced process costs, produces the larger heavy-duty motor of motor external diameter, also is of value to this motor industrialization.
Figure 10 is the utility model motor outer rotor pressure plate structure schematic diagram, the external rotor pressing plate is positioned at cage barrier outer roller axial two ends, identical with the external rotor outer contour shape, add insulator separation between pressing plate and external rotor, be drilled with on the pressing plate with cage barrier external rotor location hole 12(and see Fig. 8) the identical location hole 12 in position, the clamping screw that non-magnet material is made passes whole location holes 12 vertically, adds the insulation isolation between clamping screw and rotor module, utilizes nut to be fixed at the pressing plate two ends.The inboard trapezoid slit identical with shape with external rotor dovetail groove same position of pressing plate, the public cage bar 10 on the external rotor and short circuit cage bar 11 pass from this slit, carry out the end and link.
Figure 11 is a kind of structural representation that the utility model motor internal rotor is only installed public cage bar, and short circuit cage bar is not installed, and also can adopt in addition the form of short circuit cage strips only being installed and the cage bar not being installed, and also is like this for external rotor.Public cage bar and short circuit cage bar can both play the magnetic field modulation effect, because public cage bar is positioned at the salient pole center, so its magnetic field modulation effect is more obvious than short circuit cage bar, therefore adopt the form motor performance of public cage bar and short circuit cage bar best, be followed successively by later on the form that only adopts public cage bar, the form that only adopts the form of short circuit cage bar, any cage bar is not installed.
Figure 12 is a kind of end connected mode schematic diagram of the public cage bar of the utility model motor, adopts end conducting ring 18 that public cage bar 10 both side ends with layer in the public dovetail groove are linked together, and forms p
rIndividual mesh type galvanic circle, when outside magnetic flux passes the mesh center of galvanic circle, can induce therein electromotive force, thereby in the loop, form electric current, magnetic direction and outside magnetic flux opposite direction that this electric current produces, the main flux path of rotor thereby impact is flowed through, so that main flux enters rotor from salient pole, played the effect every magnetic and change magnetic flux path, improve the magnetic field modulation effect, adopt the insulation isolation between internal layer and the outer field end conducting ring 18, so no current flows through between each layer, so that the copper loss of public cage bar 10 and end conducting ring 18 reduces and the magnetic field modulation effect is better.
Figure 13 is the end connected mode expanded view of public cage bar among Figure 12.
Figure 14 is the second connected mode expanded view of the public cage bar of the utility model motor, the public cage bar 10 of individual layer in the public dovetail groove is divided into two parts, and mutually insulated isolation, the public cage bar of two parts respectively with adjacent public dovetail groove in public cage bar link to each other by end conducting ring 18, the public cage bar 10 of same layer can be connected into p
rThe annular galvanic circle of individual independence, its separated magnetic effect is identical with Figure 12, but inside and outside two-layer also mutually insulated isolation can further reduce electric current in the public cage bar, reduces the copper loss of public cage bar 10 and end conducting ring 18, improves the magnetic field modulation effect; Also can place the multiturn coil conductor in adjacent two public dovetail grooves, it is identical with Figure 13 that it connects signal, adopts the multicircuit winding coil, can reduce kelvin effect, and it is more obvious every the magnetic effect owing to the number of turn is more, so that the motor-field modulation effect is better.
Figure 15 is the third connected mode end linked, diagram of the public cage bar of the utility model motor the utility model motor, and the public cage bar of internal layer links to each other by the end conductor with outer public cage bar in the one-sided adjacent inverted trapezoidal groove, forms p
rThe annular galvanic circle of individual independence, its connected mode expanded view is identical with Figure 11, and the effect that reaches is also identical.
Figure 16 is a kind of connected mode schematic diagram of the utility model motor short circuit cage bar, in each cage barrier rotor module, centered by cage barrier rotor module radial symmetric line, the same layer short circuit cage bar end that both sides are corresponding links to each other by conductor, form and organize independently concentric type annular galvanic circle more, have equally the separated magnetic effect similar to public cage bar, can further improve the magnetic field modulation effect, each loop checking installation mutually insulated isolation, also mutually insulated isolation of the loop checking installation that internal layer short circuit cage bar and outer short circuit cage bar form.Also can place the multiturn coil conductor in the layer dovetail groove together corresponding two, form and organize independently concentric type annular multiturn galvanic circle more, adopt the multicircuit winding coil, can reduce kelvin effect, it is more obvious every the magnetic effect because the number of turn is more, magnetic field modulation is effective, organize independently formed on the same rotor module concentric type annular galvanic circle number of turn can equate also can not wait more, inequality can weakened field in disadvantageous harmonic field, improve the coupling ability of stator double winding, reduce supplementary load loss, further improve the performance of motor.
Figure 17 is the utility model motor short circuit cage bar the second connected mode end linked, diagram, internal layer short circuit cage bar links to each other by conductor with the outer short circuit cage bar of corresponding dovetail groove, form and organize independently chiasma type concentric type loop checking installation more, the effect that reaches is identical with connected mode described in Figure 13.
Figure 18 is the public cage bar of the utility model motor and short circuit cage bar scheme of installation, the connected mode among the figure among public cage strip adoption Fig. 9, the connected mode of short circuit cage strip adoption Figure 13.No matter adopt which kind of form, all adopt the insulation isolation between all public cage bars and the short circuit cage bar.
Figure 19 is the public cage bar of the second and short circuit cage bar connected mode expanded view, and the public cage bar of end, the same side and short circuit cage bar link together by an end conducting ring among the figure.Like this under the prerequisite of impact effect not, not only reduced the quantity of end connecting ring, simplified the motor end construction, reduced motor weight, and because all cage bar one sides link together, and each conductive loop internal induction electromotive force reduces, the electric current that flows through also reduces, the motor copper loss reduces, and efficient improves.
The connected mode of above-mentioned public cage bar and short circuit cage bar is applicable to external rotor and internal rotor simultaneously.
Claims (7)
1. two cages hinder rotor stator self-excitation synchronous machines, mainly comprise stator (1), internal rotor (2), external rotor (3) controllable direct current power supply (4), it is characterized in that: internal rotor (2) and external rotor (3) lay respectively at the inside and outside both sides of stator (1), two rotors link together by ring flange is coaxial, the single-phase symmetrical excitation winding (7) that wherein three-phase symmetrical armature winding (6) and the 2q utmost point of the 2p utmost point are all laid in both sides inside and outside the stator (1), perhaps the number of poles of the number of poles of armature winding (6) and excitation winding (7) exchanges, and all satisfies 2p-2q 〉=4; Internal rotor (2) and external rotor (3) are respectively by p
r=p+q identical cage barrier rotor module along the circumferential direction is combined into and has p
rThe rotor of individual salient pole type, the inboard sleeve (14) of making by location notch (13) and non-magnet material of cage barrier internal rotor module links to each other, and sleeve (14) is fixed together by the alignment pin in the rotating shaft and rotating shaft (15); The sleeve (14) that make by location notch (13) and non-magnet material in the external rotor cage barrier module outside links to each other; Each cage barrier internal rotor module outer surface has a plurality of radially dovetail grooves, each cage barrier external rotor module inner surface has a plurality of radially dovetail grooves, for internal rotor and external rotor, radially the dovetail groove spacing equates or does not wait, all dovetail grooves radially have several ladder groove widths that does not wait, put into some conductors in each dovetail groove and form short circuit cage bar (11), adjacent cage barrier rotor module joint is the notch cuttype gap, forms p in its joint after the splicing of adjacent cage barrier rotor module
rIndividual public dovetail groove, and module gap (16) degree of depth of public dovetail groove bottom reaches sleeve (14) surface always, each public dovetail groove radially has several ladder groove widths that does not wait, and puts into some conductors in each public dovetail groove and forms public cage bar (10); Public cage bar (10) and short circuit cage bar (11) adopt respectively end conducting ring (18) to be connected to form the galvanic circle; Cage barrier internal rotor module and cage barrier external rotor module centers place all have many groups tangentially every magnetosphere (8), the dovetail groove that embeds short circuit cage bar (11) with both sides separately respectively is combined to form organizes radially lamination magnetic barrier more, forms a plurality of magnetic layers (9) in cage barrier rotor module.
2. described pair of cage of claim 1 hinders rotor stator self-excitation synchronous machine, it is characterized in that: armature winding (6) links to each other with electrical network (5), excitation winding (7) links to each other with an end of controllable direct current power supply (4), and controllable direct current power supply (4) other end links to each other with electrical network (5).
3. described pair of cage of claim 1 hinders rotor stator self-excitation synchronous machine, and it is characterized in that: the notch place of placing the dovetail groove of public cage bar (10) and short circuit cage bar (11) has interior gap and embeds slot wedge (17); Public cage bar (10) end link form is: end conducting ring (18) all connects together public cage bar (10) both side ends with layer in the public dovetail groove; Or the public cage bar of individual layer in the public dovetail groove (10) is divided into two parts, the public cage bars of two parts (10) link to each other by end conducting ring (18) with the public cage bar (10) of layer respectively with in the adjacent public dovetail groove; Or the public cage bar of internal layer (10) that the public cage bar of public dovetail groove ectonexine (9) and one-sided adjacent public dovetail groove is interior links to each other by end conducting ring (18); Or in adjacent two public dovetail grooves, place the multiturn coil conductor; Short circuit cage bar (11) end link form is: centered by cage barrier rotor module radial symmetric line, same layer short circuit cage bar (11) end that both sides are corresponding links to each other by conductor, forms and organizes independently concentric type annular galvanic circle more; Or outer short circuit cage bar is continuous by conductor with the internal layer short circuit cage bar of corresponding dovetail groove, form and organize independently chiasma type concentric type loop checking installation more; Or in two corresponding same layer dovetail grooves, place the multiturn coil conductor, the many groups coil-conductor number of turn on the same rotor module is identical also can be different.
4. described pair of cage of claim 1 hinders rotor stator self-excitation synchronous machine, it is characterized in that: pressing plate is equipped with respectively at the two ends of cage barrier internal rotor and external rotor, add insulator separation between pressing plate and rotor, be drilled with the location hole (12) identical with cage barrier rotor location hole (12) position on the pressing plate, the clamping screw that non-magnet material is made passes whole location holes (12) vertically, utilizes nut to be fixed at the pressing plate two ends.
5. the described pair of cage of claim 1 barrier rotor stator self-excitation synchronous machine is characterized in that: internal rotor and external rotor are installed the high temperature resistant non-magnet material or do not cast of can casting in the magnetic barrier slit in public dovetail groove slit remaining behind the winding and the module.
6. described pair of cage of claim 1 hinders rotor stator self-excitation synchronous machine, it is characterized in that: the upper location notch form that is used for the installation rotor module of sleeve (14) is rectangular channel or dovetail groove; The form of internal rotor sleeve (14) is circular sleeve or polygon sleeve.
7. described pair of cage of claim 1 hinders rotor stator self-excitation synchronous machine, it is characterized in that: rotor module hinders slit or U-shaped magnetic barrier slit every the arc magnetic that is shaped as of magnetosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154856 CN203261211U (en) | 2013-03-29 | 2013-03-29 | Stator self-excitation synchronous motor with dual cage barrier rotors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154856 CN203261211U (en) | 2013-03-29 | 2013-03-29 | Stator self-excitation synchronous motor with dual cage barrier rotors |
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| Publication Number | Publication Date |
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| CN203261211U true CN203261211U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320154856 Withdrawn - After Issue CN203261211U (en) | 2013-03-29 | 2013-03-29 | Stator self-excitation synchronous motor with dual cage barrier rotors |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166395A (en) * | 2013-03-29 | 2013-06-19 | 沈阳工业大学 | Stator self-excitation synchronous motor with double cage barrier rotors and control method thereof |
| CN109167502A (en) * | 2018-09-21 | 2019-01-08 | 沈阳工业大学 | A kind of permanent magnetism auxiliary cage barrier rotors synchronous motor |
| CN110212671A (en) * | 2019-05-22 | 2019-09-06 | 湖北研道特磁科技有限公司 | A kind of super-pressure phase modifier system applied in ultra-high voltage converter station |
-
2013
- 2013-03-29 CN CN 201320154856 patent/CN203261211U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166395A (en) * | 2013-03-29 | 2013-06-19 | 沈阳工业大学 | Stator self-excitation synchronous motor with double cage barrier rotors and control method thereof |
| CN103166395B (en) * | 2013-03-29 | 2015-06-03 | 沈阳工业大学 | Stator self-excitation synchronous motor with double cage barrier rotors and control method thereof |
| CN109167502A (en) * | 2018-09-21 | 2019-01-08 | 沈阳工业大学 | A kind of permanent magnetism auxiliary cage barrier rotors synchronous motor |
| CN109167502B (en) * | 2018-09-21 | 2023-08-01 | 沈阳工业大学 | Permanent magnet auxiliary cage barrier rotor synchronous motor |
| CN110212671A (en) * | 2019-05-22 | 2019-09-06 | 湖北研道特磁科技有限公司 | A kind of super-pressure phase modifier system applied in ultra-high voltage converter station |
| CN110212671B (en) * | 2019-05-22 | 2024-05-03 | 武汉研道科技有限公司 | Ultra-high voltage camera system applied to ultra-high voltage converter station |
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Granted publication date: 20131030 Effective date of abandoning: 20150603 |
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