CN102255459B - Stator winding connection method for low-voltage high-power multipole multiphase permanent magnet synchronous motor - Google Patents
Stator winding connection method for low-voltage high-power multipole multiphase permanent magnet synchronous motor Download PDFInfo
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- CN102255459B CN102255459B CN 201110213992 CN201110213992A CN102255459B CN 102255459 B CN102255459 B CN 102255459B CN 201110213992 CN201110213992 CN 201110213992 CN 201110213992 A CN201110213992 A CN 201110213992A CN 102255459 B CN102255459 B CN 102255459B
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Abstract
The invention discloses a stator winding connection method for a low-voltage high-power multipole multiphase permanent magnet synchronous motor. In the invention, for an AC (alternating current) motor of which the phase number is m, the pole number is 2p, the stator slot number is Z, phase splitting is carried out according to a pi/m electrical angle, and the maximum number of coil assemblies which can be connected in parallel in each phase is amax, in the method disclosed by the invention, each coil assembly which can be connected in parallel in each phase of the stator winding is taken as a branch, m branches of the adjacent m phases in space can be connected to form a m-phase symmetrical starlike connection group according to a rule of electromotive force phase mutual difference 2pi/m electrical angle, and then the head ends of each branch belonging to the same phase in the obtained amax starlike connection groups are connected in parallel while the amax star contacts are not connected; thus, the stator winding can be formed by connecting the amax m-phase symmetrical starlike connection groups in parallel, the total number of series turns of each coil assembly is the number of series turns of each phase winding, and the stator winding is an m-phase symmetrical winding. The method is convenient to adjust the series turns of each phase of the stator winding and the slot utilization and can reduce the circulation probably generated by the paralleled windings.
Description
Technical field
The present invention relates to a kind of stator winding attached method of synchronous machine.Particularly relate to and a kind ofly can realize the stator winding attached method that is used for the multipole multiphase permanent magnet synchronous motor of the low-pressure high-power polyphase multipolar Stator Windings of AC Motor, can flexible arrangement.
Background technology
At present, quite a few is arranged is induction motor or these two kinds of alternating current machines of permanent magnet synchronous motor to the employed drive motor of many pure electric automobiles and hybrid vehicle.The considerable technical scheme of the power supply of motor is to adopt battery, and power of motor does not wait from several kilowatts to tens kilowatts.Under this workplace, alternating current machine has to be faced with this reality of low-voltage, high-current, and low pressure just means that the turns-in-series of every phase winding is few, and large electric current just means that the total sectional area of winding conducting wire is large.The turns-in-series of the every phase winding of many phase alternating current machine stator and the selection of parallel branch number are related to effective utilization of motor manufacture craft and stator slot.In the ideal situation, the every phase winding of polyphase multipolar alternating-current motor stator has many parallel branch numbers available, and stator winding design is more flexibly.In practice, for the polyphase multipolar induction motor, the conclusion when desirable stands good, and still, problem has just come out for the polyphase multipolar permanent magnet synchronous motor.Reason is, must use a large amount of permanent magnets on the multi-pole permanent-magnetic rotor, remanent magnetism behind the dependence permanent magnet saturation magnetization provides medium---the air gap permanent magnet magnetic field of energy converting between mechanical necessity for motor, form alternate many to permanent magnetism magnetic pole of a plurality of N, the S of expection at motor internal, but the magnetic property of commercial permanent magnet has larger dispersiveness.When the inconsistent phenomenon of permanent magnet magnetic performance is more serious, can cause the air gap permanent magnet magnetic flux under each magnetic pole of p-m rotor different, so that the permanent magnet induction electromotive force in each parallel branch of each phase winding is different, between each parallel branch of each phase winding, produce circulation, produce supplementary load loss, cause motor performance to descend.Therefore, generation for fear of this kind adverse effect, generally, the scientific worker only is designed to a parallel branch number with every phase stator winding when design polyphase multipolar permanent magnet synchronous motor, the number of turn of adjusting each groove coil will cause the turns-in-series of phase winding significantly to change, and the conductor total sectional area of phase winding is very large so simultaneously.For limited stator slot, when power of motor is larger, cell voltage is lower, when every phase total current is larger, this two hang-up that effectively utilizes of the adjustment of phase winding turns-in-series and groove just highlights, and is difficult for designing the permanent magnet synchronous motor that various performances can both be made overall plans.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of a plurality of star connection group parallel connection and the unconnected flexible arrangement that can realize the multi-phase AC motor stator winding of each star connection point, the adjustment of the number of turn that whenever is in series when being convenient to the design of low-pressure high-power polyphase multipolar Stator Windings of AC Motor and effective utilization of groove for the stator winding attached method of the multipole multiphase permanent magnet synchronous motor of low-pressure high-power.
The technical solution adopted in the present invention is: a kind of stator winding attached method for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power, be the in parallel and unconnected Stator Windings of AC Motor attached methods of each star contact of a plurality of star connection groups, specifically: to set the multipole multi-phase AC motor number of phases and be m, number of poles and be 2p, number of stator slots be Z, count q=Z/ (2mp) by π/m electrical degree phase-splitting, every extremely every phase groove can maximum coil group number in parallel be a for integer, every phase
Max, the coil groups that every phase can be in parallel consists of 1 branch road, whenever consists of mutually a
MaxThe bar branch road, the adjacent m bar branch road that adheres to the m phase separately connects into 1 star connection group that m is symmetrical according to the rule of each branch road electromotive force phase place mutual deviation 2 π/m electrical degree on the stator circumference, and a cover stator winding connects into a altogether
MaxIndividual star connection group, described a
MaxThe electromotive force phase place of m phase branch road is corresponding consistent respectively between individual star connection group, a
MaxThe branch road head end that the symmetrical star connection group of individual m belongs to same phase is connected in parallel, and a
MaxThe star contact of the star connection group that individual m is symmetrical is unsettled, do not link mutually, and motor stator winding is by a
MaxThe symmetrical star connection group of individual independently m is formed in parallel, be exactly total the turns-in-series of each coil groups of turns-in-series of every phase winding, the m phase winding of gained is still symmetrical.
Counting q when every extremely every phase groove is integer, adopt short-chorded coil, when stator adopts the double-layer lap winding, q the coil of limit, upper strata under a magnetic pole that belongs to same phase is together in series and obtains a coil groups, equally, other q coil that belongs to extremely down this phase is together in series respectively consists of an other 2p-1 coil groups, such one has 2p coil groups mutually, the synthetic electromotive force equal and opposite in direction of each coil groups, phase place is identical or opposite, so each coil groups can independently become a branch road, the maximum coil group that every extremely every phase integer groove double-layer lap winding whenever is in parallel is counted a
MaxEqual motor pole number 2p.
Counting q when every extremely every phase groove is that whole even number and stator are when adopting single layer winding, wherein, adopt the chain type winding during q=2, q=4, adopted Concentrical winding at 6 o'clock, belonging to coil side in each the q/2 groove under same mutually adjacent two magnetic poles is together in series and obtains a coil groups, equally, coil side in each the q/2 groove that belongs to this phase under other adjacent two magnetic poles is together in series respectively consists of an other 2p-1 coil groups, such one has 2p coil groups mutually, the synthetic electromotive force equal and opposite in direction of each coil groups, phase place is identical or opposite, so each coil groups can independently become a branch road, the every phase of every extremely every mutually whole even bin single layer winding can maximum coil group in parallel be counted a
MaxEqual motor pole number 2p.
Count q for greater than 1 whole odd number when every extremely every phase groove, when stator adopts individual layer to intersect winding, whenever be in series into synthetic p identical coil groups of electromotive force equal and opposite in direction direction, namely the maximum coil group that whenever is in parallel of every extremely every mutually whole odd bin single layer winding is counted a
MaxEqual motor number of pole-pairs p.
Stator winding attached method for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power of the present invention is so that motor stator winding is by a
MaxThe symmetrical star connection group of individual independently m is formed in parallel, be exactly total the turns-in-series of each coil groups of turns-in-series of every phase winding, the electric current of each branch road is every phase total current (1/a in each star connection group
Max), the coil-conductor sectional area reduces, and coil turn is easily adjusted, and the groove utilance is good, and m phase star contact cross-sectional area of conductor amasss corresponding reducing, and the star contact easily welds, a
MaxIndividual star contact is uniform, is fully used in the electric motor winding end space.When motor operates under the consistent operating mode of every utmost point magnetic flux, whether the star contact connects, and motor performance is had no effect; But, when the every utmost point magnetic flux of motor is inconsistent, because a
MaxIndividual star contact does not connect mutually, when having avoided the star contact to connect owing to the generation of circulation between the inconsistent parallel branch that causes of each parallel branch induced electromotive force of phase winding.When the every utmost point magnetic flux of motor is inconsistent, although the phase winding electromotive force in each star connection group is different, can form additional circulation between each star connection group, but, the circulation of this moment is to form between each phase winding, be each mutually coefficient result, compare smallerly when circulation also is connected with the star contact that motor performance increases.
Description of drawings
Fig. 1 is m=3 of the present invention, 2p=6, Z=36, π/3 electrical degree phase-splittings, 6 star connection group is in parallel and each star contact does not connect alternating-current motor stator single layer winding connection figure;
Fig. 2 is m=3 of the present invention, 2p=6, Z=36, π/3 electrical degree phase-splittings, 6 star connection group is in parallel and each star contact does not connect alternating-current motor stator double-layer lap winding connection figure;
Fig. 3 is m=5 of the present invention, 2p=4, Z=40, π/5 electrical degree phase-splittings, 4 star connection group is in parallel and each star contact does not connect alternating-current motor stator single layer winding connection figure.
Embodiment
Below in conjunction with embodiment and accompanying drawing the stator winding attached method for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power of the present invention is made a detailed description.
A kind of stator winding attached method for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power of the present invention, be the in parallel and unconnected Stator Windings of AC Motor attached methods of each star contact of a plurality of star connection groups, specifically: to establish the multipole multi-phase AC motor number of phases and be m, number of poles and be 2p, number of stator slots be Z, count q=Z/ (2mp) by π/m electrical degree phase-splitting, every extremely every phase groove can maximum coil group number in parallel be a for integer, every phase
Max, the coil groups that every phase can be in parallel consists of 1 branch road, whenever consists of mutually a
MaxThe bar branch road, the adjacent m bar branch road that adheres to the m phase separately connects into 1 star connection group that m is symmetrical according to the rule of each branch road electromotive force phase place mutual deviation 2 π/m electrical degree on the stator circumference, and a cover stator winding connects into a altogether
MaxIndividual star connection group, described a
MaxThe electromotive force phase place of m phase branch road is corresponding consistent respectively between individual star connection group, a
MaxThe branch road head end that the symmetrical star connection group of individual m belongs to same phase is connected in parallel, and a
MaxThe star contact of the star connection group that individual m is symmetrical is unsettled, do not link mutually, and motor stator winding is by a
MaxThe symmetrical star connection group of individual independently m is formed in parallel, be exactly total the turns-in-series of each coil groups of turns-in-series of every phase winding, the m phase winding of gained is still symmetrical.
Counting q when every extremely every phase groove is integer, adopt short-chorded coil, when stator adopts the double-layer lap winding, q the coil of limit, upper strata under a magnetic pole that belongs to same phase is together in series and obtains a coil groups, equally, other q coil that belongs to extremely down this phase is together in series respectively consists of an other 2p-1 coil groups, such one has 2p coil groups mutually, the synthetic electromotive force equal and opposite in direction of each coil groups, phase place is identical or opposite, so each coil groups can independently become a branch road, the maximum coil group that every extremely every phase integer groove double-layer lap winding whenever is in parallel is counted a
MaxEqual motor pole number 2p.
Counting q when every extremely every phase groove is that whole even number and stator are when adopting single layer winding, wherein, adopt the chain type winding during q=2, q=4, adopted Concentrical winding at 6 o'clock, belonging to coil side in each the q/2 groove under same mutually adjacent two magnetic poles is together in series and obtains a coil groups, equally, coil side in each the q/2 groove that belongs to this phase under other adjacent two magnetic poles is together in series respectively consists of an other 2p-1 coil groups, such one has 2p coil groups mutually, the synthetic electromotive force equal and opposite in direction of each coil groups, phase place is identical or opposite, so each coil groups can independently become a branch road, the every phase of every extremely every mutually whole even bin single layer winding can maximum coil group in parallel be counted a
MaxEqual motor pole number 2p.
Count q for greater than 1 whole odd number when every extremely every phase groove, when stator adopts individual layer to intersect winding, whenever be in series into synthetic p identical coil groups of electromotive force equal and opposite in direction direction, namely the maximum coil group that whenever is in parallel of every extremely every mutually whole odd bin single layer winding is counted a
MaxEqual motor number of pole-pairs p.
The below is instantiation:
As shown in Figure 1, number of motor phases m=3, number of poles 2p=6, number of stator slots Z=36, winding connect into 6 star connection groups parallel connections and the unconnected alternating-current motor stator single layer winding of each star contact by π/3 electrical degree phase-splittings and by the present invention.Among the figure, N
1, S
1, N
2, S
2, N
3, S
3Represent 6 magnetic poles of rotor, numeral 1,2, L, 35,36 represent the sequence number of 36 grooves of motor, place altogether 18 coils in the stator, and coil turn all is N
cHead end is A
1Tail end is X
1Loop A
1X
1Two coil sides be embedded in respectively in groove 2 and the groove 7 loop A
1X
1This coil itself just consists of the 1st coil groups of A phase; Tail end is A
2Head end is X
2Loop A
2X
2Two coil sides be embedded in respectively in groove 13 and the groove 8 loop A
2X
2This coil itself just consists of the 2nd coil groups of A phase; Head end is A
3Tail end is X
3Loop A
3X
3Two coil sides be embedded in respectively in groove 14 and the groove 19 loop A
3X
3This coil itself just consists of the 3rd coil groups of A phase; Tail end is A
4Head end is X
4Loop A
4X
4Two coil sides be embedded in respectively in groove 25 and the groove 20 loop A
4X
4This coil itself just consists of the 4th coil groups of A phase; Head end is A
5Tail end is X
5Loop A
5X
5Two coil sides be embedded in respectively in groove 26 and the groove 31 loop A
5X
5This coil itself just consists of the 5th coil groups of A phase; Tail end is A
6Head end is X
6Loop A
6X
6Two coil sides be embedded in respectively in groove 1 and the groove 32 loop A
6X
6This coil itself just consists of the 6th coil groups of A phase.Head end is B
1Tail end is Y
1Coil B
1Y
1Two coil sides be embedded in respectively in groove 6 and the groove 11 coil B
1Y
1This coil itself just consists of the 1st coil groups of B phase; Tail end is B
2Head end is Y
2Coil B
2Y
2Two coil sides be embedded in respectively in groove 17 and the groove 12 coil B
2Y
2This coil itself just consists of the 2nd coil groups of B phase; Head end is B
3Tail end is Y
3Coil B
3Y
3Two coil sides be embedded in respectively in groove 18 and the groove 23 coil B
3Y
3This coil itself just consists of the 3rd coil groups of B phase; Tail end is B
4Head end is Y
4Coil B
4Y
4Two coil sides be embedded in respectively in groove 29 and the groove 24 coil B
4Y
4This coil itself just consists of the 4th coil groups of B phase; Head end is B
5Tail end is Y
5Coil B
5Y
5Two coil sides be embedded in respectively in groove 30 and the groove 35 coil B
5Y
5This coil itself just consists of the 5th coil groups of B phase; Tail end is B
6Head end is Y
6Coil B
6Y
6Two coil sides be embedded in respectively in groove 5 and the groove 36 coil B
6Y
6This coil itself just consists of the 6th coil groups of B phase.Tail end is C
1Head end is Z
1Coil C
1Z
1Two coil sides be embedded in respectively in groove 9 and the groove 4 coil C
1Z
1This coil itself just consists of the 1st coil groups of C phase; Head end is C
2Tail end is Z
2Coil C
2Z
2Two coil sides be embedded in respectively in groove 10 and the groove 15 coil C
2Z
2This coil itself just consists of the 2nd coil groups of C phase; Tail end is C
3Head end is Z
3Coil C
3Z
3Two coil sides be embedded in respectively in groove 21 and the groove 16 coil C
3Z
3This coil itself just consists of the 3rd coil groups of C phase; Head end is C
4Tail end is Z
4Coil C
4Z
4Two coil sides be embedded in respectively in groove 22 and the groove 27 coil C
4Z
4This coil itself just consists of the 4th coil groups of C phase; Tail end is C
5Head end is Z
5Coil C
5Z
5Two coil sides be embedded in respectively in groove 33 and the groove 28 coil C
5Z
5This coil itself just consists of the 5th coil groups of C phase; Head end is C
6Tail end is Z
1Coil C
6Z
6Two coil sides be embedded in respectively in groove 34 and the groove 3 coil C
6Z
6This coil itself just consists of the 6th coil groups of C phase.The 1st coil groups A of A, B, C three-phase will be adhered to separately
1X
1, B
1Y
1, C
1Z
1X
1, Y
1, Z
1Link together and consist of the 1st star contact; The 2nd coil groups A of A, B, C three-phase will be adhered to separately
2X
2, B
2Y
2, C
2Z
2X
2, Y
2, Z
2Link together and consist of the 2nd star contact; The 3rd coil groups A of A, B, C three-phase will be adhered to separately
3X
3, B
3Y
3, C
3Z
3X
3, Y
3, Z
3Link together and consist of the 3rd star contact; The 4th coil groups A of A, B, C three-phase will be adhered to separately
4X
4, B
4Y
4, C
4Z
4X
4, Y
4, Z
4Link together and consist of the 4th star contact; The 5th coil groups A of A, B, C three-phase will be adhered to separately
5X
5, B
5Y
5, C
5Z
5X
5, Y
5, Z
5Link together and consist of the 5th star contact; The 6th coil groups A of A, B, C three-phase will be adhered to separately
6X
6, B
6Y
6, C
6Z
6X
6, Y
6, Z
6Link together and consist of the 6th star contact; So altogether consist of 6 three-phase star connection groups.In theory, this 6 three-phase stars connection organizes that each phase phase voltage amplitude equates, phase place mutual deviation 2 π/3 electrical degrees, is the star connection group of 6 three-phase symmetricals.6 head ends that the star connection group of these 6 three-phase symmetricals is belonged to the phase homophase are connected in parallel and receive the total input A of motor three phase windings, B, C, are about to A
1, A
2, A
3, A
4, A
5, A
6Being connected in parallel meets motor A phase winding input A, with B
1, B
2, B
3, B
4, B
5, B
6Being connected in parallel meets motor B phase winding input B, with C
1, C
2, C
3, C
4, C
5, C
6Be connected in parallel and meet motor A phase winding input C.
As shown in Figure 2, number of motor phases m=3, number of poles 2p=6, number of stator slots Z=36, winding connect into 6 star connection groups parallel connections and the unconnected alternating-current motor stator double-layer lap of each star contact winding by π/3 electrical degree phase-splittings and by the present invention.Among the figure, N
1, S
1, N
2, S
2, N
3, S
3Represent 6 magnetic poles of rotor, numeral 1,2, L, 35,36 represent the sequence number of 36 grooves of motor, and the every groove of two layer winding is put two coil sides, and each coil has two coil sides, and coil number equals the groove number, places altogether 36 coils in the stator, and coil turn all is N
cCoil is selected the short distance winding, coil span is taken as 5 grooves, then lower floor's conductor of the top conductor of the 1st groove and the 6th groove couples together and consists of the 1st coil, lower floor's conductor of the top conductor of the 2nd groove and the 7th groove couples together and consists of the 2nd coil, the rest may be inferred by analogy, and number get with the groove at coil top conductor place and to make coil number.The tail end of coil 1 is connected the 1st the coil groups A that series connection consists of A with the head end of coil 2
1X
1, A wherein
1Head end, X for coil 1
1Tail end for coil 2; The tail end of coil 7 is connected the 2nd the coil groups A that series connection consists of A with the head end of coil 8
2X
2, A wherein
2Tail end, X for coil 8
2Head end for coil 7; The tail end of coil 13 is connected the 3rd the coil groups A that 14 series connection consist of A with the head end of coil
3X
3, A wherein
3Head end, X for coil 13
3Tail end for coil 14; The tail end of coil 19 is connected the 4th the coil groups A that series connection consists of A with the head end of coil 20
4X
4, A wherein
4Tail end, X for coil 20
4Head end for coil 19; The tail end of coil 25 is connected the 5th the coil groups A that series connection consists of A with the head end of coil 26
5X
5, A wherein
5Head end, X for coil 25
5Tail end for coil 26; The tail end of coil 31 is connected the 6th the coil groups A that series connection consists of A with the head end of coil 32
6X
6, A wherein
6Tail end, X for coil 32
6Head end for coil 31.The tail end of coil 5 is connected the 1st the coil groups B that series connection consists of A with the head end of coil 6
1Y
1, B wherein
1Head end, Y for coil 5
1Tail end for coil 6; The tail end of coil 11 is connected the 2nd the coil groups B that series connection consists of B with the head end of coil 12
2Y
2, B wherein
2Tail end, Y for coil 12
2Head end for coil 11; The tail end of coil 17 is connected the 3rd the coil groups B that series connection consists of B with the head end of coil 18
3Y
3, B wherein
3Head end, Y for coil 18
3Tail end for coil 19; The tail end of coil 23 is connected the 4th the coil groups B that series connection consists of B with the head end of coil 24
4Y
4, B wherein
4Tail end, Y for coil 24
4Head end for coil 23; The tail end of coil 29 is connected the 5th the coil groups A that series connection consists of A with the head end of coil 39
5X
5, A wherein
5Head end, X for coil 29
5Tail end for coil 30; The tail end of coil 35 is connected the 6th the coil groups B that series connection consists of B with the head end of coil 36
6Y
6, B wherein
6Tail end, Y for coil 35
6Head end for coil 36.The tail end of coil 3 is connected the 1st the coil groups C that series connection consists of C with the head end of coil 4
1Z
1, C wherein
1Tail end, Z for coil 4
1Head end for coil 3; The tail end of coil 9 is connected the 2nd the coil groups C that series connection consists of C with the head end of coil 10
2Z
2, C
2The head end of coil 9, Z
2Tail end for coil 10; The tail end of coil 15 is connected the 3rd the coil groups C that series connection consists of C with the head end of coil 16
3Z
3, C wherein
3Tail end, Z for coil 16
3Head end for coil 15; The tail end of coil 21 is connected the 4th the coil groups C that series connection consists of C with the head end of coil 22
4Z
4, C wherein
4Head end, Z for coil 21
4Tail end for coil 22; The tail end of coil 27 is connected the 5th the coil groups C that series connection consists of C with the head end of coil 28
5Z
5, C wherein
5Tail end, Z for coil 28
5Head end for coil 27; The tail end of coil 33 is connected the 6th the coil groups C that series connection consists of A with the head end of coil 34
6Z
6, C wherein
6Head end, Z for coil 33
6Tail end for coil 34.The 1st coil groups A of A, B, C three-phase will be adhered to separately
1X
1, B
1Y
1, C
1Z
1X
1, Y
1, Z
1Link together and consist of the 1st star contact; The 2nd coil groups A of A, B, C three-phase will be adhered to separately
2X
2, B
2Y
2, C
2Z
2X
2, Y
2, Z
2Link together and consist of the 2nd star contact; The 3rd coil groups A of A, B, C three-phase will be adhered to separately
3X
3, B
3Y
3, C
3Z
3X
3, Y
3, Z
3Link together and consist of the 3rd star contact; The 4th coil groups A of A, B, C three-phase will be adhered to separately
4X
4, B
4Y
4, C
4Z
4X
4, Y
4, Z
4Link together and consist of the 4th star contact; The 5th coil groups A of A, B, C three-phase will be adhered to separately
5X
5, B
5Y
5, C
5Z
5X
5, Y
5, Z
5Link together and consist of the 5th star contact; The 6th coil groups A of A, B, C three-phase will be adhered to separately
6X
6, B
6Y
6, C
6Z
6X
6, Y
6, Z
6Link together and consist of the 6th star contact; So altogether consist of 6 three-phase star connection groups.In theory, this 6 three-phase stars connection organizes that each phase phase voltage amplitude equates, phase place mutual deviation 2 π/3 electrical degrees, is the star connection group of 6 three-phase symmetricals.6 head ends that the star connection group of these 6 three-phase symmetricals is belonged to the phase homophase are connected in parallel and receive the total input A of motor three phase windings, B, C, are about to A
1, A
2, A
3, A
4, A
5, A
6Being connected in parallel meets motor A phase winding input A, with B
1, B
2, B
3, B
4, B
5, B
6Being connected in parallel meets motor B phase winding input B, with C
1, C
2, C
3, C
4, C
5, C
6Be connected in parallel and meet motor A phase winding input C.
As shown in Figure 3, number of motor phases m=5, number of poles 2p=4, number of stator slots Z=40, winding connect into 4 star connection groups parallel connections and the unconnected alternating-current motor stator single layer winding of each star contact by π/5 electrical degree phase-splittings and by the present invention.Among the figure, N
1, S
1, N
2, S
2Represent 4 magnetic poles of rotor, numeral 1,2, L, 39,40 represent the sequence number of 40 grooves of motor, and the every groove of single layer winding is put a coil side, and each coil has two coil sides, places altogether 40 coils in the stator, and coil turn all is N
cHead end is A
1Tail end is X
1Loop A
1X
1Two coil sides be embedded in respectively in groove 2 and the groove 11 loop A
1X
1This coil itself just consists of the 1st coil groups of A phase; Tail end is A
2Head end is X
2Loop A
2X
2Two coil sides be embedded in respectively in groove 21 and the groove 12 loop A
2X
2This coil itself just consists of the 2nd coil groups of A phase; Head end is A
3Tail end is X
3Loop A
3X
3Two coil sides be embedded in respectively in groove 22 and the groove 31 loop A
3X
3This coil itself just consists of the 3rd coil groups of A phase; Tail end is A
4Head end is X
4Loop A
4X
4Two coil sides be embedded in respectively in groove 32 and the groove 1 loop A
4X
4This coil itself just consists of the 4th coil groups of A phase.Head end is B
1Tail end is Y
1Coil B
1Y
1Two coil sides be embedded in respectively in groove 6 and the groove 15 coil B
1Y
1This coil itself just consists of the 1st coil groups of B phase; Tail end is B
2Head end is Y
2Coil B
2Y
2Two coil sides be embedded in respectively in groove 25 and the groove 16 coil B
2Y
2This coil itself just consists of the 2nd coil groups of B phase; Head end is B
3Tail end is Y
3Coil B
3Y
3Two coil sides be embedded in respectively in groove 26 and the groove 35 coil B
3Y
3This coil itself just consists of the 3rd coil groups of B phase; Tail end is B
4Head end is Y
4Coil B
4Y
4Two coil sides be embedded in respectively in groove 36 and the groove 5 coil B
4Y
4This coil itself just consists of the 4th coil groups of B phase.Head end is C
1Tail end is Z
1Coil C
1Z
1Two coil sides be embedded in respectively in groove 10 and the groove 19 coil C
1Z
1This coil itself just consists of the 1st coil groups of C phase; Tail end is C
2Head end is Z
2Coil C
2Z
2Two coil sides be embedded in respectively in groove 29 and the groove 20 coil C
2Z
2This coil itself just consists of the 2nd coil groups of C phase; Head end is C
3Tail end is Z
3Coil C
3Z
3Two coil sides be embedded in respectively in groove 30 and the groove 39 coil C
3Z
3This coil itself just consists of the 3rd coil groups of C phase; Tail end is C
4Head end is Z
4Coil C
4Z
4Two coil sides be embedded in respectively in groove 40 and the groove 9 coil C
4Z
4This coil itself just consists of the 4th coil groups of C phase.Tail end is D
1Head end is U
1Coil D
1U
1Two coil sides be embedded in respectively in groove 13 and the groove 4 coil D
1U
1This coil itself just consists of the 1st coil groups of D phase; Head end is D
2Tail end is U
2Coil D
2U
2Two coil sides be embedded in respectively in groove 14 and the groove 23 coil D
2U
2This coil itself just consists of the 2nd coil groups of D phase; Tail end is D
3Head end is U
3Coil D
3U
3Two coil sides be embedded in respectively in groove 33 and the groove 24 coil D
3U
3This coil itself just consists of the 3rd coil groups of D phase; Head end is D
4Tail end is U
4Coil D
4U
4Two coil sides be embedded in respectively in groove 34 and the groove 3 coil D
4U
4This coil itself just consists of the 4th coil groups of D phase.Tail end is E
1Head end is V
1Coil E
1V
1Two coil sides be embedded in respectively in groove 17 and the groove 8 coil E
1V
1This coil itself just consists of the 1st coil groups of E phase; Head end is E
2Tail end is V
2Coil E
2V
2Two coil sides be embedded in respectively in groove 18 and the groove 27 coil E
2V
2This coil itself just consists of the 2nd coil groups of E phase; Tail end is E
3Head end is V
3Coil E
3V
3Two coil sides be embedded in respectively in groove 37 and the groove 28 coil E
3V
3This coil itself just consists of the 3rd coil groups of E phase; Head end is E
4Tail end is V
4Coil E
4V
4Two coil sides be embedded in respectively in groove 38 and the groove 7 coil E
4V
4This coil itself just consists of the 4th coil groups of E phase; The 1st coil groups A of A, B, C, E, D five phases will be adhered to separately
1X
1, B
1Y
1, C
1Z
1, D
1U
1, E
1V
1X
1, Y
1, Z
1, U
1, V
1Link together and consist of the 1st star contact; The 2nd coil groups A of A, B, C, E, D five phases will be adhered to separately
2X
2, B
2Y
2, C
2Z
2, D
2U
2, E
2V
2X
2, Y
2, Z
2, U
2, V
2Link together and consist of the 2nd star contact; The 3rd coil groups A of A, B, C, E, D five phases will be adhered to separately
3X
3, B
3Y
3, C
3Z
3, D
3U
3, E
3V
3X
3, Y
3, Z
3, U
3, V
3Link together and consist of the 3rd star contact; The 4th coil groups A of A, B, C, E, D five phases will be adhered to separately
4X
4, B
4Y
4, C
4Z
4, D
4U
4, E
4V
4X
4, Y
4, Z
4, U
4, V
4Link together and consist of the 4th star contact; So altogether consist of 4 five phase star connection groups.In theory, these 4 five phase star connections organize that each phase phase voltage amplitude equates, phase place mutual deviation 2 π/5 electrical degrees, are 4 five symmetrical star connection groups.4 head ends that these 4 five symmetrical star connection groups are belonged to the phase homophase are connected in parallel and receive the total input A of motor three phase windings, B, C, E, D, are about to A
1, A
2, A
3, A
4Being connected in parallel meets motor A phase winding input A, with B
1, B
2, B
3, B
4Being connected in parallel meets motor B phase winding input B, with C
1, C
2, C
3, C
4Being connected in parallel meets motor A phase winding input C, with D
1, D
2, D
3, D
4Being connected in parallel meets motor D phase winding input D, with E
1, E
2, E
3, E
4Be connected in parallel and meet motor E phase winding input E.
Claims (4)
1. stator winding attached method that is used for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power, it is characterized in that, be the in parallel and unconnected permanent-magnetic synchronous motor stator winding of each the star contact attached methods of a plurality of star connection groups, specifically: to set the multipole multiphase permanent magnet synchronous motor number of phases and be m, number of poles and be 2p, number of stator slots be Z, count q=Z/ (2mp) by π/m electrical degree phase-splitting, every extremely every phase groove can maximum coil group number in parallel be a for integer, every phase
Max, each coil groups consists of a branch road, whenever consists of mutually a
MaxThe bar branch road, the adjacent m bar branch road that adheres to the m phase separately connects into 1 star connection group that m is symmetrical according to the rule of each branch road electromotive force phase place mutual deviation 2 π/m electrical degree on the stator circumference, and a cover stator winding connects into a altogether
MaxIndividual star connection group, described a
MaxThe electromotive force phase place of m phase branch road is corresponding consistent respectively between individual star connection group, a
MaxThe branch road head end that the symmetrical star connection group of individual m belongs to same phase is connected in parallel, and a
MaxThe star contact of the star connection group that individual m is symmetrical is unsettled, do not link mutually, and motor stator winding is by a
MaxThe symmetrical star connection group of individual independently m is formed in parallel, be exactly total the turns-in-series of each coil groups of turns-in-series of every phase winding, the m phase winding of gained is still symmetrical.
2. the stator winding attached method for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power according to claim 1, it is characterized in that, counting q when every extremely every phase groove is integer, adopt short-chorded coil, when stator adopts the double-layer lap winding, q the coil of limit, upper strata under a magnetic pole that belongs to same phase is together in series and obtains a coil groups, equally, other q coil that belongs to extremely down this phase is together in series respectively consists of an other 2p-1 coil groups, such one has 2p coil groups mutually, the synthetic electromotive force equal and opposite in direction of each coil groups, phase place is identical or opposite, so each coil groups can independently become a branch road, the maximum coil group that every extremely every phase integer groove double-layer lap winding whenever is in parallel is counted a
MaxEqual motor pole number 2p.
3. the stator winding attached method for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power according to claim 1, it is characterized in that, counting q when every extremely every phase groove is that even number and stator are when adopting single layer winding, wherein, adopt the chain type winding during q=2, q=4, adopted Concentrical winding at 6 o'clock, belonging to coil side in each the q/2 groove under same mutually adjacent two magnetic poles is together in series and obtains a coil groups, equally, coil side in each the q/2 groove that belongs to this phase under other adjacent two magnetic poles is together in series respectively consists of an other 2p-1 coil groups, such one has 2p coil groups mutually, the synthetic electromotive force equal and opposite in direction of each coil groups, phase place is identical or opposite, so each coil groups can independently become a branch road, the every phase of every extremely every phase even bin single layer winding can maximum coil group in parallel be counted a
MaxEqual motor pole number 2p.
4. the stator winding attached method for the multipole multiphase permanent magnet synchronous motor of low-pressure high-power according to claim 1, it is characterized in that, when every extremely every phase groove is counted q for greater than 1 odd number, when stator adopts individual layer to intersect winding, whenever be in series into synthetic p identical coil groups of electromotive force equal and opposite in direction direction, namely the maximum coil group that whenever is in parallel of every extremely every phase odd bin single layer winding is counted a
MaxEqual motor number of pole-pairs p.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110213992 CN102255459B (en) | 2011-07-29 | 2011-07-29 | Stator winding connection method for low-voltage high-power multipole multiphase permanent magnet synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110213992 CN102255459B (en) | 2011-07-29 | 2011-07-29 | Stator winding connection method for low-voltage high-power multipole multiphase permanent magnet synchronous motor |
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| CN102255459A CN102255459A (en) | 2011-11-23 |
| CN102255459B true CN102255459B (en) | 2013-02-27 |
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| CN 201110213992 Expired - Fee Related CN102255459B (en) | 2011-07-29 | 2011-07-29 | Stator winding connection method for low-voltage high-power multipole multiphase permanent magnet synchronous motor |
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| CN103280906A (en) * | 2013-05-22 | 2013-09-04 | 蒋胜千 | Wiring method for increasing number of parallel-connection branches of three-phase alternating current motor double-layer stator winding |
| CN103715850B (en) * | 2013-11-23 | 2016-03-02 | 南昌康富科技股份有限公司 | A kind of three-phase brushless synchronous generator stator double armature changes winding |
| CN106856359A (en) * | 2015-12-09 | 2017-06-16 | 上海日立电器有限公司 | One kind distribution coiling electric motor |
| CN105846628B (en) * | 2016-03-24 | 2018-06-15 | 天津大学 | 30 slot, 14 pole fractional-slot bilayer short distance Distributed Winding, 15 phase permasyn morot |
| EP3340439B1 (en) * | 2016-12-22 | 2019-06-19 | Elaphe Pogonske Tehnologije D.o.o. | Voltage balanced winding pattern for an electric machine with a minimal number of connections and method for assembly of such winding |
| CN106849554B (en) * | 2017-01-23 | 2023-07-14 | 河北新四达电机股份有限公司 | Permanent magnet motor stator and multi-parallel winding soft winding transposition coil inserting method thereof |
| CN110492647B (en) * | 2018-05-14 | 2022-03-04 | 上海鸣志电器股份有限公司 | Method for restraining circular current of parallel branch of air gap winding |
| CN109494941A (en) * | 2019-01-03 | 2019-03-19 | 常州市运控电子有限公司 | A kind of small-power low pressure servo motor wiring technique |
| CN111786488B (en) * | 2020-06-04 | 2023-05-09 | 苏州汇川联合动力系统有限公司 | Motor stator and motor |
| EP4016817A4 (en) * | 2020-07-31 | 2022-11-09 | Contemporary Amperex Technology Co., Limited | Motor, control method, power system, and electric vehicle |
| CN113113980B (en) * | 2021-04-13 | 2022-09-13 | 刘晓艳 | Motor slot-staggering split-phase combined stator winding and winding harmonic slot-staggering coefficient calculation method |
| CN113964989A (en) * | 2021-11-09 | 2022-01-21 | 上海电气集团上海电机厂有限公司 | 8-way parallel connection method for high-speed high-power 4-pole three-phase asynchronous motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1427491A1 (en) * | 1987-01-22 | 1988-09-30 | Институт Электродинамики Ан Усср | Five-phase/single-phase combination winding of electric machine |
| JP3988617B2 (en) * | 2002-09-18 | 2007-10-10 | 株式会社デンソー | Segment conductor junction type armature and AC machine equipped with this armature |
| JP4265973B2 (en) * | 2004-01-16 | 2009-05-20 | 三菱電機株式会社 | Rotating electric machine stator |
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