CN202334229U - Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits - Google Patents
Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits Download PDFInfo
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- 238000004804 winding Methods 0.000 title claims abstract description 196
- 230000000295 complement effect Effects 0.000 title claims abstract description 20
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- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 4
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 4
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Abstract
The utility model designs a stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits, which comprises a stator (1) and a rotor (4), wherein the rotor (4) is positioned inside or outside of the stator (1). The stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits is characterized in that the stator (1) is of a salient pole structure, and is provided with stator teeth (101) protruding out of a yoke part; armature winding grooves (102) are formed among the stator teeth; the stator teeth (101) and the armature winding grooves (102) are distributed alternatively; the stator (1) is provided with central armature windings (2) and permanent magnets (3), wherein the permanent magnets (3) are arranged on the stator teeth (101), and are positioned at an air gap between the stator (1) and the rotor (4); and the central armature windings (2) are arranged on the stator teeth (101) of the stator (1). The motor is simple and firm in structure, and has high torque output capability and large power density.
Description
Technical Field
The utility model relates to a simple structure, firm, the motor that has stronger torque output ability, higher power density and great unit magnet steel and exert oneself relates to the technical field that the motor was made, and especially a stator surface mounting formula biconvex utmost point permanent magnet motor about the complementary symmetry of winding and magnetic circuit structure.
Background
As the countries with the largest reserves of rare earth materials in the world, China vigorously researches and popularizes and applies various novel permanent magnet motors represented by rare earth permanent magnet motors, and has important theoretical significance and application value. Research efforts have been focused on rotor permanent magnet type motors represented by surface mount, plug-in, and embedded types over the last decade. However, the type of motor with permanent magnets placed on the rotor has a series of problems in design and operation, such as a structure in which the permanent magnets are adhered to the surface of the rotor or inserted between salient poles of the rotor, and in order to overcome the influence of centrifugal force generated by high-speed operation, an auxiliary permanent magnet fixing device is usually required, which increases the process and material costs; the embedded structure of the permanent magnet embedded in the rotor core affects the mechanical strength of the rotor, and requires an auxiliary magnetic bridge, which also increases the material and manufacturing cost. In addition, the permanent magnet is arranged on the rotor, so that heat dissipation and cooling are not facilitated, and the power density of the motor is limited.
For the above reasons, the development of a new permanent magnet motor with a new structure capable of overcoming the above disadvantages becomes a key task of making the motor manufacturer feel indecipherable. At present, three types of motors with stator permanent magnet type structures have been internationally presented, namely unipolar double salient permanent magnet motors, bipolar flux switching permanent magnet motors and bipolar flux reversing permanent magnet motors. The structure principle of the flux reversal motor is that two permanent magnets with opposite polarities are arranged on each salient pole stator tooth side by side. The magnetic flux leakage is serious, and the utilization rate of unit magnetic steel is reduced. The utility model aims at exactly being to this type magnetic flux reversal permanent-magnet machine's shortcoming, provided the stator surface mounting formula biconvex utmost point permanent-magnet machine of a novel structure, and the complementary symmetry of winding magnetic circuit structure can offset the inherent higher harmonic induced electromotive force of some centralized coils, has improved every phase winding induced electromotive force's sine.
Disclosure of Invention
The technical problem is as follows:the utility model aims at providing a complementary stator surface mounting formula biconvex utmost point permanent-magnet machine of winding magnetic circuit for this motor simple structure, firm has high sinusoidal no-load induced electromotive force, stronger torque output ability and great power density, and more outstanding is that the unit magnet steel torque of this type of motor is exerted oneself greatly, is particularly suitable for as the drive element who exchanges speed governing system.
The technical scheme is as follows:in order to solve the technical problem, the utility model provides a stator surface-mounted doubly salient permanent magnet motor with complementary winding magnetic circuits, which comprises a stator and a rotor, wherein the rotor is positioned inside or outside the stator,
the stator is in a salient pole structure and is provided with stator teeth protruding out of the yoke part, armature winding slots are formed among the stator teeth, the stator teeth and the armature winding slots are alternately distributed,
the stator is provided with a concentrated armature winding and a permanent magnet; wherein,
the permanent magnet is arranged on the stator teeth and positioned at an air gap between the stator and the rotor, and the concentrated armature winding is arranged on the stator teeth of the stator; the two coil sides of each coil constituting the concentrated armature winding are respectively located in the armature winding slot on the left side and the armature winding slot on the right side of one stator tooth of the stator.
Preferably, the concentrated armature winding is a three-phase concentrated winding, which is respectively an A-phase concentrated winding, a B-phase concentrated winding and a C-phase concentrated winding, the three-phase concentrated windings are sequentially and adjacently arranged on the stator, and the three-phase concentrated windings have the same structure;
the A-phase concentrated winding comprises four winding coils, the four A-phase winding coils are respectively arranged on the stator, the four winding coils have a spatial difference of 90 degrees, and the four A-phase winding coils are connected in series, in parallel or in series-parallel to form the A-phase concentrated winding;
the B-phase concentrated winding comprises four winding coils, the four B-phase winding coils are respectively arranged on the stator, the four B-phase winding coils have a spatial difference of 90 degrees, and the four winding coils are connected in series, in parallel or in series-parallel to form the B-phase concentrated winding; four B-phase winding coils of the B-phase concentrated winding are respectively adjacent to four A-phase winding coils of the A-phase concentrated winding and have a spatial difference of 30 degrees;
the C-phase concentrated winding comprises four winding coils, the four C-phase winding coils are respectively arranged on the stator, the four winding coils have a spatial difference of 90 degrees, and the four C-phase winding coils are connected in series, in parallel or in series-parallel to form the C-phase concentrated winding; the four C-phase winding coils of the C-phase concentrated winding are respectively adjacent to the four B-phase winding coils of the B-phase concentrated winding and have a spatial difference of 30 degrees.
Preferably, the number of stator poles per phaseN s Number of teeth with rotorP r Has a positive and negative 2 difference, and each phase statorThe armature winding is composed of at least two coils which are perpendicular to each other in space and are connected in series, and each phase of armature winding is composed of 4mkThe coil is composed of a plurality of coils,N s =4mknumber of stator poles per phaseN s ，mThe number of the motor phases is the number of the motor phases,kis a positive integer.
Preferably, both the stator and the rotor are of a doubly salient pole construction.
Preferably, the stator is a whole formed by laminating magnetic conductive iron cores, and the rotor is of a salient pole structure and is a whole formed by laminating magnetic conductive iron cores.
Preferably, the permanent magnets are attached to the outer surfaces of the stator teeth facing the air gap between the stator teeth and the rotor teeth, a permanent magnet magnetized in the radial direction is attached to each stator tooth, and the magnetizing directions of the permanent magnets attached to the adjacent stator teeth are opposite.
Preferably, the rotor is a straight or skewed slot rotor.
Preferably, the permanent magnet is ferrite, samarium cobalt or neodymium iron boron or other types of permanent magnet steel.
Has the advantages that:because the armature concentrated winding and the permanent magnet are arranged on the stator and the rotor is only the magnetic conducting core, the motor of the utility model has very simple and firm structure, is particularly suitable for high-speed operation and is beneficial to improving the cooling condition of the motor;
because of adopting the concentrated winding mode, the length of the end part can be reduced, the resistance and the copper consumption are reduced as much as possible, and the compact structure, the higher power density and the higher efficiency of the motor are ensured;
because the stator armature winding and the permanent magnet are both arranged on the stator, the magnetizing or demagnetizing of the permanent magnet by the magnetic potential of the armature winding is easy to implement;
because the rotor structure is very simple and firm, the mode of forming virtual grooves on the surfaces of the inclined grooves or the rotor teeth can be conveniently adopted according to the requirement to improve the induced potential waveform and reduce the cogging torque (positioning torque), so that the torque pulsation of the motor is smaller, and the motor is particularly suitable for the field of precise servo control and other direct drive high-power speed regulation application occasions.
In an embodiment of the utility model, because stator tooth's socket rotor number of poles cooperation is 12/10, the winding magnetic structure is complementary, has guaranteed the utility model discloses under the condition that adopts concentrated winding and rotor not chute, just can obtain the sinusoidal wave permanent magnetism magnetic flux linkage of unipolar, highly be close static characteristics such as sinusoidal every looks induced electromotive force, and special tooth's socket cooperation leads to its positioning torque less, can replace present widely used ordinary brushless AC motor completely, thereby make the utility model discloses be more suitable for the drive element as AC speed control system.
In conclusion, the motor has the advantages of large air gap flux density, strong torque output capacity, high power density, large unit magnetic steel torque output, small positioning torque, low torque pulsation, high sine of induced potential, high efficiency, simple production and manufacturing process, strong rotor robustness and the like due to the structural characteristics.
Drawings
Fig. 1 is a component diagram of a stator surface-mounted doubly salient permanent magnet motor with 12 slots of a stator and 10 poles of a rotor, which is designed by adopting the technology of the utility model;
among them are: a stator 1, a concentrated armature winding 2, a permanent magnet 3, a rotor 4,
the phase A concentrated winding, the phase B concentrated winding and the phase C concentrated winding;
four winding coils of A-phase concentrated winding A1, A2, A3 and A4; the B-phase concentrated winding comprises four winding coils B1, B2, B3 and B4; the C-phase concentrated winding comprises four winding coils C1, C2, C3 and C4;
fig. 2 is a diagram of the phase a winding in fig. 1, which reflects the relationship between the permanent magnet flux linkages of the two coils a1, a2 forming the phase a coil assembly;
FIG. 3 is the example of the winding of phase A in FIG. 1, reflecting the no-load induced potential e of a coil assembly of phase A coilA12With two separate coils e constituting the coil assembly coilA1、e coilA2The relationship between;
FIG. 4 is the result of an amplitude analysis of the harmonic components of the three induced potential curves of FIG. 3;
FIG. 5 is a phase angle analysis of the harmonic components of the three induced potential curves of FIG. 3;
fig. 6 is a waveform distribution result of no-load induced potential per turn of a three-phase armature winding.
Detailed Description
The present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses a complementary stator surface mounting formula biconvex pole permanent magnet motor of winding magnetic circuit, it includes stator 1 and rotor 4, and rotor 4 is located the inside or the outside of stator 1.
The stator 1 is a salient pole structure, provided with stator teeth 101 protruding out of a yoke part, armature winding slots 102 are formed between the stator teeth, the stator teeth 101 and the armature winding slots 102 are alternately distributed,
a concentrated armature winding 2 and a permanent magnet 3 are arranged on the stator 1; wherein,
the permanent magnet 3 is arranged on the stator teeth 101 and positioned at an air gap between the stator 1 and the rotor 4, and the concentrated armature winding 2 is arranged on the stator teeth 101 of the stator 1; the two coil sides of each coil constituting the concentrated armature winding 2 are respectively located in the armature winding slot to the left and the armature winding slot to the right of one stator tooth 101 of the stator 1.
The concentrated armature winding 2 is a three-phase concentrated winding, and is respectively an A-phase concentrated winding, a B-phase concentrated winding and a C-phase concentrated winding, the three-phase concentrated windings are sequentially and adjacently arranged on the stator 1, and the three-phase concentrated windings have the same structure;
the phase A concentrated winding comprises four winding coils A1, A2, A3 and A4, the four winding coils A1, A2, A3 and A4 are respectively arranged on the stator 1, the space phase difference between the four winding coils A1, A2, A3 and A4 is 90 degrees, and the four winding coils A1, A2, A3 and A4 can be connected in series, in parallel or in series-parallel to form the phase A concentrated winding;
the B-phase concentrated winding comprises four winding coils B1, B2, B3 and B4, the four winding coils B1, B2, B3 and B4 are respectively arranged on the stator 1, the four winding coils B1, B2, B3 and B4 are different by 90 degrees in space, and the four winding coils B1, B2, B3 and B4 can be connected in series, in parallel or in series-parallel to form the B-phase concentrated winding; the four winding coils B1, B2, B3 and B4 of the B-phase concentrated winding are respectively adjacent to the four winding coils A1, A2, A3 and A4 of the A-phase concentrated winding and have a spatial difference of 30 degrees;
the C-phase concentrated winding comprises four winding coils C1, C2, C3 and C4, the four winding coils C1, C2, C3 and C4 are respectively arranged on the stator 1, the four winding coils C1, C2, C3 and C4 are different by 90 degrees in space, and the four winding coils C1, C2, C3 and C4 can be connected in series, in parallel or in series-parallel to form the C-phase concentrated winding; the four winding coils C1, C2, C3 and C4 of the C-phase concentrated winding are respectively adjacent to and spatially different by 30 degrees from the four winding coils B1, B2, B3 and B4 of the B-phase concentrated winding.
Number of 1 pole per phase statorN s Number of teeth with rotor 4P r The difference between the phases is positive and negative 2, each phase of stator armature winding is composed of at least two coils which are mutually vertical in space and are connected in series, and each phase of armature winding is composed of 4mkThe coil is composed of a plurality of coils,N s =4mknumber of poles of stator 1 per phaseN s ，mThe number of the motor phases is the number of the motor phases,kis a positive integer.
Both the stator 1 and the rotor 4 are of a double salient pole structure.
The stator 1 is a whole formed by pressing and stacking magnetic-conducting iron cores, and the rotor 4 is a salient pole structure and is a whole formed by pressing and stacking the magnetic-conducting iron cores.
The permanent magnets 3 are attached to the outer surfaces of the stator teeth facing the air gaps between the stator teeth and the rotor teeth, a permanent magnet magnetized in the radial direction is attached to each stator tooth, and the magnetizing directions of the permanent magnets attached to the adjacent stator teeth are opposite.
The rotor 4 is a straight or skewed slot rotor.
The permanent magnet 3 is ferrite, samarium cobalt or neodymium iron boron and other types of permanent magnet steel.
The utility model discloses a stator surface mounting formula biconvex utmost point permanent-magnet machine includes two parts of stator and rotor, can take two kinds of forms of inner rotor or outer rotor according to the application scenario of difference. The stator and rotor are both of double salient pole structure, and the number of stator slotsN s And number of salient poles of rotorP r With multiple coordination and motor phase numbersmCan be single phase, two phase, three phase and multi phase; the stator is provided with a permanent magnet and a centralized armature coil; wherein the armature winding of any phase is composed ofN s /m) The coil is composed of a plurality of coils,mthe phase coils are sequentially and adjacently sleeved on the stator teeth. Each stator slot is provided with a double-layer winding, namely coil edges which belong to different two phases are placed; belonging to the same phase 4k（N s /m=4k，kPositive integer) coils may be connected in series/parallel/series-parallel as desired; the outer surface of each stator tooth facing the air gap is pasted with a permanent magnet, the permanent magnet can be made of ferrite, samarium cobalt or neodymium iron boron, the magnetizing directions of the permanent magnets are radial magnetizing,N s under each stator toothN s The block permanent magnets are alternately opposite in magnetism. Since the structure is similar to a rotor surface-mount motor, the structure is named as a stator surface-mount motor; the rotor part has very simple structure, no permanent magnet or winding, and is formed by laminating simple magnetic conductive iron core punching sheets, and the number of the rotor polesP r Number of teeth with respect to statorN s With a phase difference of 2. Considering the influence of the frequency of the magnetic field on the iron loss of the rotor, it is generally advisableP r =N s -2. The stator surface-mounted doubly salient permanent magnet motor of the utility model uses one phase numbermNumber of stator slots =3N s =12. Number of salient poles of rotorP r =10. Each phase of winding is composed ofN s /m=12/3=4 sample machine of concentrated coils.
The motor can be operated electrically and also can be operated for power generation.
As shown in fig. 1, the stator surface-mounted doubly salient permanent magnet motor with 12 slots in the stator and 10 poles in the rotor of the utility model comprises a stator core 1 and a rotor core 4, wherein the rotor 4 is positioned inside or outside the stator 1, the stator 1 and the rotor 4 are both in a doubly salient structure, and the stator 1 is provided with a three-phase concentrated winding 2 and 12 permanent magnets 3.
The A phase of the concentrated winding 2 is vertically distributed by the first set of coil windings A1 and A2 in space, and the second set of coil windings A3 and A4 in space; the A-phase first set of winding coils A1, A2 are respectively opposite to the second set of winding coils A3, A4 in the radial direction; each winding coil is sleeved in a salient pole groove in the stator 1, and the two sets of coil groups can be connected in series, in parallel or in series-parallel connection to form an A-phase winding.
The B-phase first set of coil windings B1 and B2 of the concentrated winding 2 are vertically distributed in space, and the second set of coil windings B3 and B4 are vertically distributed in space; the B-phase first set of winding coils B1 and B2 are respectively opposite to the second set of winding coils B3 and B4 in the radial direction; each winding coil is sleeved in a salient pole groove in the stator 1, and the two sets of coil groups can be connected in series, in parallel or in series-parallel connection to form a B-phase winding.
The C-phase first set of coil windings C1 and C2 of the concentrated winding 2 are vertically distributed in space, and the second set of coil windings C3 and C4 are vertically distributed in space; the first set of winding coils C1, C2 of the C phase are radially opposite to the second set of winding coils C3, C4, respectively; each winding coil is sleeved in a salient pole groove in the stator 1, and the two sets of coil groups can be connected in series, in parallel or in series-parallel connection to form a C-phase winding.
If coils A1 and A2 are referred to as a first set of coils A12, coils A3 and A4 are referred to as a second set of coils A34. The central line of the stator pole where the coil A1 is located is taken as a reference standard, and the position angle of the rotor is defined asθ r When the leading edge of the rotor tooth coincides with the central line of the stator pole, the rotor position angle is 0oAs shown in the position shown in fig. 1. During one electrical cycle of rotor rotation (360)o/P r In this case 36o) In the process, the rotor has complementary characteristics with respect to the magnetic circuit of two coils, which belong to the same coil group and are distributed perpendicularly to each other, which are explained as follows:
for coil A1, the position shown in FIG. 1 isθ r =0o(the corresponding stator pole centerline is exactly aligned with the rotor tooth leading edge); for coil A2, the position shown in FIG. 1 isθ r =18o(the corresponding stator pole centerline is exactly aligned with the rotor tooth trailing edge). Thus, when the rotor begins to rotate counterclockwise for 1 full electrical cycle (360) as shown in FIG. 1o/P r =360o/10=36o) Meanwhile, the permanent magnetic flux linkage numerical value and the polarity relation of the stator coil A1 are as follows: forward direction → forward direction maximum → forward direction middle → forward direction minimum → forward direction middle, and the permanent magnetic linkage value and polarity relationship of the turns of stator coil a2 are: negative middle → negative minimum → negative middle → negative maximum → negative middle, as shown in fig. 2 below. During the movement, the permanent magnetic fluxes (flux linkages) of the coils a1 and a2 are opposite in polarity, but the average value is equal to the peak-to-peak value (the difference between the maximum value and the minimum value), and the permanent magnetic flux waveforms of the two coils are consistent in trend, which means that the waveform of the no-load induced potential generated by each coil is consistent in trend and the zero-crossing points are coincident. However, regardless of the polarity of the permanent magnet flux linkage, during one electrical cycle of rotor rotation, there is one-half electrical cycle (180) of the change law of rotor position to coils a1, a2oCorresponding to the mechanical cycle 18o) The phase difference of (1). It is this rotor position that is different relative to the statorThe difference in the tooth movement process causes that the rotor rotates in an electric period and a magnetic circuit formed by two stator teeth which are in the same phase is different, and the permanent magnetic flux linkage of the turn linkage of two independent coils in the same coil group and the generated induced potential have certain phase complementary characteristics, so that part of higher harmonic wave components can be offset, and each phase of no-load permanent magnetic flux linkage and no-load induced potential waveform still having higher sine degree under the condition of adopting a centralized armature coil and a straight slot rotor are ensured.
FIG. 3 is an example of the A-phase winding, which reflects the no-load induced potential e of each coil set of the A-phase coilA12With two separate coils e constituting the coil assembly coilA1、e coilA2The relationship between them. If a mode that two coil groups are connected in series to form one phase is adopted, each phase has no-load induction potential e phase Inducing a potential e with both coil sets coilA12、e coilA34Satisfies the following conditions: e.g. of the type phase =e coilA12+e coilA34=2(e coilA1+e coilA2). If a mode that two coil groups are connected in parallel to form one phase is adopted, each phase has no-load induction potential e phase Inducing a potential e with both coil sets coilA12、e coilA34Satisfies the following conditions: e.g. of the type phase =e coilA12=e coilA34=e coilA1+e coilA2. FIG. 4 is a view of the above e coilA12、e coilA1、e coilA2And analyzing harmonic components of the three no-load induced potential waveforms.
As can be seen from fig. 3 to 5, the induced potential waveform contains a large harmonic component for each coil individually. However, due to the winding complementarity of the motor, the induced potential waveforms generated in the coils a1 and a2 are different in phase by half a cycle and opposite in direction, so that the high-order harmonic components in each coil potential curve are almost equal in amplitude but opposite in phase angle, and the induced potential waveform of the combined coil group (coil a1+ a 2) is rather weakened or eliminatedExcept most harmonic components, only fundamental components and high-order components with small amplitude are left, and the high sine degree of the waveform is ensured. Fig. 4 and 5 are harmonic analysis results of the three curves in fig. 3, and it can be seen from fig. 3 that the no-load induced potentials of the two coils a1 and a2 of the coil group a12 are the second harmonic component, the ratio of the second harmonic component to the fundamental wave reaches about 6.6%, and the amplitudes are almost equal. As can be seen by comparing the phase angles of the two in fig. 5, the phase angles of the second, third, fourth, fifth, sixth, seventh and eighth harmonics are approximately opposite. Therefore, the harmonic component is greatly suppressed as a result of the additive combination of the induced potentials of the two coils, so that the Total Harmonic Distortion (THD) of the induced potentials of the combined coil group is reduced from 7.15% to 2.69%, and a very obvious effect of improving the sine degree of the waveform is achieved. FIG. 6 shows the simulation waveform (1500 rpm) of the three-phase permanent magnet no-load induced potential, and it can be seen that the mechanical angle 12 is strictly deviated between the phases in sequenceo(electric Angle 120)oRotor pole number Pr = 10) and each phase positive and negative single peaks are almost equal, proving that it has good symmetry and sinusoid.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.
Claims (8)
1. A stator surface-mounted type doubly salient permanent magnet motor with a complementary winding magnetic circuit comprises a stator (1) and a rotor (4), wherein the rotor (4) is positioned inside or outside the stator (1), and is characterized in that:
the stator (1) is a salient pole structure and is provided with stator teeth (101) protruding out of a yoke part, armature winding slots (102) are formed among the stator teeth, the stator teeth (101) and the armature winding slots (102) are alternately distributed,
a concentrated armature winding (2) and a permanent magnet (3) are arranged on the stator (1); wherein,
the permanent magnet (3) is arranged on the stator teeth (101) and positioned at an air gap between the stator (1) and the rotor (4), and the concentrated armature winding (2) is arranged on the stator teeth (101) of the stator (1); two coil edges of each coil forming the concentrated armature winding (2) are respectively positioned in an armature winding slot on the left side and an armature winding slot on the right side of one stator tooth (101) of the stator (1).
2. The stator surface-mounted doubly salient permanent-magnet machine with complementary winding and magnetic circuit according to claim 1, wherein the concentrated armature windings (2) are three-phase concentrated windings, namely an A-phase concentrated winding, a B-phase concentrated winding and a C-phase concentrated winding, and the three-phase concentrated windings are adjacently arranged on the stator (1) in sequence, and the three-phase concentrated windings are identical in structure;
the A-phase concentrated winding comprises four A-phase winding coils (A1, A2, A3 and A4), the four A-phase winding coils (A1, A2, A3 and A4) are respectively arranged on the stator (1), the four A-phase winding coils (A1, A2, A3 and A4) are different by 90 degrees in space, and the four A-phase winding coils (A1, A2, A3 and A4) are connected in series, in parallel or in series-parallel to form the A-phase concentrated winding;
the B-phase concentrated winding comprises four B-phase winding coils (B1, B2, B3 and B4), the four winding coils (B1, B2, B3 and B4) are respectively arranged on the stator (1), the four B-phase winding coils (B1, B2, B3 and B4) are different by 90 degrees in space, and the four B-phase winding coils (B1, B2, B3 and B4) are connected in series, in parallel or in series-parallel to form the B-phase concentrated winding; the four B-phase winding coils (B1, B2, B3 and B4) of the B-phase concentrated winding are respectively adjacent to and spatially different from the four A-phase winding coils (A1, A2, A3 and A4) of the A-phase concentrated winding by 30 degrees;
the C-phase concentrated winding comprises four C-phase winding coils (C1, C2, C3 and C4), the four C-phase winding coils (C1, C2, C3 and C4) are respectively arranged on the stator (1), the four C-phase winding coils (C1, C2, C3 and C4) are different by 90 degrees in space, and the four C-phase winding coils (C1, C2, C3 and C4) can be connected in series, in parallel or in series-parallel to form the C-phase concentrated winding; the four C-phase winding coils (C1, C2, C3, C4) of the C-phase concentrated winding are respectively adjacent to and spatially separated by 30 degrees from the four B-phase winding coils (B1, B2, B3, B4) of the B-phase concentrated winding.
3. A stator surface-mounted doubly salient permanent-magnet machine with complementary winding and magnetic circuits according to claim 1, wherein the number of poles of stator (1) per phase is equal to the number of poles of statorN s Number of teeth with rotor (4)P r The difference between the phases is positive and negative 2, each phase of stator armature winding is composed of at least two coils which are mutually vertical in space and are connected in series, and each phase of armature winding is composed of 4mkThe coil is composed of a plurality of coils,N s =4mknumber of poles of stator (1) per phaseN s ，mThe number of the motor phases is the number of the motor phases,kis a positive integer.
4. A stator surface-mounted doubly salient permanent-magnet machine with complementary winding and magnetic circuits according to claim 1, wherein the stator (1) and the rotor (4) are both of a doubly salient structure.
5. The stator surface-mounted doubly salient permanent magnet machine with complementary winding and magnetic circuits as claimed in claim 1, wherein the stator (1) is a whole body formed by laminating magnetic cores, and the rotor (4) is a salient pole structure formed by laminating magnetic cores.
6. The surface-mounted doubly salient stator-magnet machine with complementary winding and magnetic circuits as claimed in claim 1, wherein the permanent magnets (3) are mounted on the outer surfaces of the stator teeth facing the air gap between the stator teeth and the rotor teeth, each stator tooth is mounted with a permanent magnet which is magnetized in the radial direction, and the magnetizing directions of the permanent magnets mounted on the adjacent stator teeth are opposite.
7. A stator surface-mounted doubly salient permanent-magnet machine with complementary winding and magnetic circuits according to claim 1, wherein the rotor (4) is a straight-slot or skewed-slot rotor.
8. A stator surface-mounted doubly salient permanent-magnet machine with complementary winding and magnetic circuits according to claim 1, characterized in that the permanent magnets (3) are other types of permanent-magnet magnetic steel such as ferrite, samarium-cobalt or neodymium-iron-boron.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120456338XU CN202334229U (en) | 2011-11-17 | 2011-11-17 | Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120456338XU CN202334229U (en) | 2011-11-17 | 2011-11-17 | Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits |
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| CN202334229U true CN202334229U (en) | 2012-07-11 |
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| CN201120456338XU Expired - Fee Related CN202334229U (en) | 2011-11-17 | 2011-11-17 | Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403857A (en) * | 2011-11-17 | 2012-04-04 | 东南大学 | Stator surface-mounted doubly salient permanent-magnet motor with complementary winding magnetic paths |
| CN103248189A (en) * | 2013-05-03 | 2013-08-14 | 东南大学 | Bipolar stator-surface-mounting type permanent magnet motor |
| CN103997174A (en) * | 2014-06-11 | 2014-08-20 | 东南大学 | Rotor salient pole type hybrid excitation motor based on magnetic gear |
| CN106451976A (en) * | 2016-11-16 | 2017-02-22 | 南京航空航天大学 | E-shaped-iron-core-included mixed excitation flux-switching motor |
| CN107425688A (en) * | 2017-06-28 | 2017-12-01 | 华中科技大学 | A kind of permanent magnet is between stator poles and the double salient-pole electric machine of rotor interpolar |
| CN108900052A (en) * | 2018-08-13 | 2018-11-27 | 南京埃克锐特机电科技有限公司 | A kind of 6/5 pole switching reluctance motor |
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2011
- 2011-11-17 CN CN201120456338XU patent/CN202334229U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403857A (en) * | 2011-11-17 | 2012-04-04 | 东南大学 | Stator surface-mounted doubly salient permanent-magnet motor with complementary winding magnetic paths |
| CN103248189A (en) * | 2013-05-03 | 2013-08-14 | 东南大学 | Bipolar stator-surface-mounting type permanent magnet motor |
| CN103997174A (en) * | 2014-06-11 | 2014-08-20 | 东南大学 | Rotor salient pole type hybrid excitation motor based on magnetic gear |
| CN106451976A (en) * | 2016-11-16 | 2017-02-22 | 南京航空航天大学 | E-shaped-iron-core-included mixed excitation flux-switching motor |
| CN106451976B (en) * | 2016-11-16 | 2019-08-02 | 南京航空航天大学 | E shaped iron core mixed excited magnetic pass switch motor |
| CN107425688A (en) * | 2017-06-28 | 2017-12-01 | 华中科技大学 | A kind of permanent magnet is between stator poles and the double salient-pole electric machine of rotor interpolar |
| CN108900052A (en) * | 2018-08-13 | 2018-11-27 | 南京埃克锐特机电科技有限公司 | A kind of 6/5 pole switching reluctance motor |
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