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WO2024121985A1 - Moteur à réluctance synchrone et dispositif d'entraînement de wagon - Google Patents

Moteur à réluctance synchrone et dispositif d'entraînement de wagon Download PDF

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Publication number
WO2024121985A1
WO2024121985A1 PCT/JP2022/045139 JP2022045139W WO2024121985A1 WO 2024121985 A1 WO2024121985 A1 WO 2024121985A1 JP 2022045139 W JP2022045139 W JP 2022045139W WO 2024121985 A1 WO2024121985 A1 WO 2024121985A1
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WO
WIPO (PCT)
Prior art keywords
rotor core
slit
reluctance motor
synchronous reluctance
slits
Prior art date
Application number
PCT/JP2022/045139
Other languages
English (en)
Japanese (ja)
Inventor
健太 金子
優 濱田
尚哉 寺家
盛幸 枦山
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2022/045139 priority Critical patent/WO2024121985A1/fr
Publication of WO2024121985A1 publication Critical patent/WO2024121985A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current

Definitions

  • This disclosure relates to a synchronous reluctance motor that utilizes reluctance torque and a drive device for railway vehicles.
  • Synchronous reluctance motors are used in railroad cars, air conditioners, automobiles, etc. Synchronous reluctance motors rotate by creating magnetic saliency by providing slits in the rotor core, which generates reluctance torque caused by the magnetic saliency. However, compared to permanent magnet synchronous motors with permanent magnets embedded in the rotor core, synchronous reluctance motors have issues with inferior output torque and increased torque ripple due to abrupt changes in permeance near the slits.
  • Patent Document 1 aims to achieve both high output torque and low torque ripple by setting the spacing ⁇ between adjacent slits within the range of 360°/(2S) ⁇ 360°/(1.5 ⁇ S), where S is the number of slots in the stator core.
  • Patent Document 1 aims to improve centrifugal force resistance by forming strength members called ribs in the slits.
  • Patent Document 1 when the technology of Patent Document 1 is applied to a synchronous reluctance motor with a small number of poles, the spacing ⁇ between adjacent slits becomes small, which creates another problem of poor manufacturability. For this reason, there is a demand for the establishment of technology that can achieve both high output torque and low torque ripple while also suppressing the deterioration of manufacturability in synchronous reluctance motors with a small number of poles.
  • the present disclosure has been made in consideration of the above, and aims to provide a synchronous reluctance motor that achieves both high output torque and low torque ripple while also suppressing deterioration of manufacturability.
  • the synchronous reluctance motor includes an annular stator core with multiple slots formed at equal intervals along its inner circumferential surface, windings housed in each slot, and a rotor core formed in a cylindrical shape on the inner surface side of the stator core.
  • the rotor core has an opening with inner and outer edges formed by two arcs that are convex toward the inside or outside in the radial direction, and has multiple slits whose openings are divided by a center rib.
  • a slit group consisting of multiple slits is formed in layers toward the center of the cylinder for each magnetic pole.
  • the slit interval is represented by ⁇ , which is the angle formed by the circumferential midpoint of the end along the outer circumferential surface of the rotor core at the opening of the slit closest to the outer periphery of the rotor core with the center of the cylinder of the rotor core between adjacent slits.
  • the number of slots in the stator core is represented by S.
  • the synchronous reluctance motor disclosed herein achieves both high output torque and low torque ripple while also minimizing deterioration of manufacturability.
  • FIG. 1 is a diagram showing a schematic configuration of a drive device that drives a synchronous reluctance motor according to a first embodiment
  • FIG. 1 is a cross-sectional view of a synchronous reluctance motor according to a first embodiment taken along the axial direction of a shaft.
  • FIG. 4 is a cross-sectional view showing one magnetic pole of the 4-pole, 48-slot synchronous reluctance motor shown in FIG.
  • FIG. 5 is a cross-sectional view for explaining the shape, position and layers of the slits in the rotor core shown in FIG.
  • FIG. 1 is a diagram showing a schematic configuration of a drive device that drives a synchronous reluctance motor according to a first embodiment
  • FIG. 1 is a cross-sectional view of a synchronous reluctance motor according to a first embodiment taken along the
  • FIG. 5 is a cross-sectional view showing one magnetic pole of a 4-pole, 48-slot synchronous reluctance motor in which the number of layers of the slit groups is different from that in FIG.
  • FIG. 7 is a cross-sectional view showing one magnetic pole of a 4-pole, 48-slot synchronous reluctance motor in which the number of layers of the slit groups is different from that in FIGS. 4 and 6 .
  • FIG. 13 is a diagram showing the results of an electromagnetic field analysis performed on a rotor core according to the first embodiment;
  • FIG. 13 is a diagram showing a first example of a rotor core according to a second embodiment;
  • FIG. 13 is a diagram showing a second example of a rotor core according to the second embodiment;
  • FIG. 13 is a diagram showing the results of an electromagnetic field analysis performed on a rotor core according to the second embodiment
  • FIG. 11 is a cross-sectional view showing one magnetic pole of a 2-pole, 24-slot synchronous reluctance motor according to a third embodiment.
  • FIG. 13 is a cross-sectional view for explaining the shape, position and layers of the slits in the rotor core shown in FIG.
  • FIG. 13 is a diagram showing the results of an electromagnetic field analysis performed on a rotor core according to the third embodiment.
  • Fig. 1 is a diagram showing a schematic configuration of a drive device that drives a synchronous reluctance motor 1 according to embodiment 1.
  • the synchronous reluctance motor 1 is connected to a control device 3 via a power supply line 2.
  • the synchronous reluctance motor 1 operates as an electric machine that converts electrical energy supplied from the control device 3 into mechanical energy.
  • the drive device shown in Fig. 1 can be used as a drive device for a railway vehicle.
  • FIG. 2 is a cross-sectional view of the synchronous reluctance motor 1 according to the first embodiment, cut along the axial direction of the shaft 4.
  • the dashed line B in FIG. 2 is the axis of the shaft 4.
  • FIG. 3 is a cross-sectional view of the synchronous reluctance motor 1 shown in FIG. 2, cut along the line A-A in FIG. 2. Note that the frame 5 is omitted from FIG. 3.
  • the synchronous reluctance motor 1 has an annular stator 6 and a cylindrical rotor 7 that are inserted and fixed into a frame 5 by a method such as press fitting or shrink fitting.
  • the annular stator 6 and the cylindrical rotor 7 are arranged to be relatively rotatable using bearings 8 via a magnetic gap 19, which is a mechanical gap.
  • the stator 6 is constructed by windings 10 around a circular stator core 9 made of an iron core.
  • the rotor 7 is integrated by inserting the shaft 4 into the center of a cylindrical rotor core 11 made of an iron core by a method such as press fitting or shrink fitting.
  • the stator core 9 is composed of an annular core back 12 and teeth 13 that protrude radially inward from the core back 12 and are arranged at equal intervals.
  • a number of slots 14 are formed at equal intervals along the inner circumferential surface between the teeth 13 provided on the radially inner side of the stator core 9.
  • the slots 14 house the windings 10.
  • the teeth 13 and slots 14 are also provided at the same angle in the circumferential direction of the ring.
  • FIG. 3 shows the cross-sectional structure of a synchronous reluctance motor 1 with 4 poles and 48 slots. Note that the number of slots and magnetic poles shown in FIG. 3 is an example and is not limited to the example in FIG. 3.
  • FIG. 4 is a cross-sectional view showing one magnetic pole of the 4-pole, 48-slot synchronous reluctance motor 1 shown in FIG. 3, and is an enlarged view of a quarter of the area in FIG. 3.
  • FIG. 5 is a cross-sectional view used to explain the shape, position, and layers of the slits 15 in the rotor core 11 shown in FIG. 4.
  • the stator 6 of the 4-pole, 48-slot synchronous reluctance motor 1 has 12 slots 14 per magnetic pole.
  • the d-axis is defined in the direction of the center line of the magnetic poles
  • the q-axis is defined in the direction of the center line between the magnetic poles.
  • the direction of the center line of the magnetic poles is the direction in which magnetic flux easily passes
  • the direction of the center line between the magnetic poles is the direction in which magnetic flux does not easily pass.
  • the d-axis direction is sometimes called the "salient pole direction”
  • the q-axis direction is sometimes called the "non-salient pole direction.”
  • the d-axis and q-axis have an electrical phase difference of 90 degrees.
  • the rotor 7 rotates due to the inductance torque generated based on the difference in inductance between the d-axis and q-axis directions.
  • the synchronous reluctance motor 1 generates output torque by utilizing the difference in magnetic resistance in the rotational direction. Therefore, the greater the difference in inductance between the d-axis and q-axis, the higher the output torque the synchronous reluctance motor 1 can produce.
  • the rotor core 11 has a number of slits 15, each of which is an opening that protrudes toward the inside in the radial direction of the rotor core 11, for each magnetic pole of the rotor core 11.
  • the slits 15 form spaces in the rotor core 11.
  • the slits 15 give the rotor core 11 a structure in which magnetic paths 16, which are magnetic parts made of a magnetic material that is the material of the electromagnetic steel sheet, and slits 15, which are non-magnetic parts made of air, appear alternately.
  • the midpoint is the center point in the circumferential direction of the arc-shaped end of the arc-shaped opening of the slit 15 along the outer circumferential surface of the rotor core 11 with respect to the d-axis passing through the cylindrical center O of the rotor core 11.
  • the midpoint in the circumferential direction of the arc-shaped end of the slit 15 closest to the outer periphery of the rotor core 11 is marked with the symbol "W”.
  • the angle that the midpoint W of each slit 15 provided within one magnetic pole makes with the cylindrical center O of the rotor core 11 between adjacent slits is ⁇ .
  • each slit 15 is arranged so that the angle ⁇ between each midpoint W and adjacent slits is equally spaced. In this paper, this angle ⁇ is called the "slit spacing.”
  • the angle between the d-axis and the line connecting the midpoint W of the slit 15 closest to the d-axis and the cylindrical center O of the rotor core 11 is set to be ⁇ /2.
  • the angle between adjacent slots in the stator core 9 is called the "slot spacing" and represented by ⁇ .
  • the multiple slits 15 are identified by the concept of layers. As shown in FIG. 5, the layer closest to the q axis of the rotor core 11 is called the “first layer,” and from the q axis side to the d axis side, the layers are called the “second layer,” “third layer,” and so on.
  • a center rib 18 that acts as a strength member is formed in each of the slits 15 from the first layer to the third layer.
  • the center rib 18 can be formed by leaving the center rib 18 portion unpunched when punching out the thin steel plate to form the slits 15.
  • each layer from the first layer to the third layer has a slit group consisting of multiple slits 15 separated by a center rib 18. Also, in each layer, the slits 15 belonging to each slit group are formed so as to be symmetrical with respect to the q axis for each magnetic pole.
  • the inner edge of the opening of the first layer is formed by arc 15a that is convex toward the inside in the radial direction of rotor core 11, and the outer edge of the opening of the first layer is formed by arc 15b that is convex toward the inside in the radial direction of rotor core 11.
  • the inner and outer edges of the second and third layers are formed in a similar manner.
  • the centers of arcs 15a and 15b are all on the q-axis in the openings of the first to third layers.
  • the radius of arc 15a is shorter than the radius of arc 15b.
  • the radii of arcs 15a and 15b of the first layer are also shorter than the radii of arcs 15a and 15b of the second layer.
  • the relationship between the second and third layers is similar.
  • the opening of the third layer slit 15 has an outer edge that is a certain distance from the d-axis and is contained within its own magnetic pole so as not to extend into the adjacent magnetic pole.
  • the rotor core 11 is cylindrically shaped on the inner surface of the stator core 9, convex radially inward, has an opening whose center is located on the q axis of the magnetic pole, and whose inner and outer edges are formed by two arcs with two radii of different lengths.
  • the rotor core 11 also has a plurality of slits 15 whose openings are divided by a center rib 18, and a group of slits consisting of the plurality of slits 15 is formed in layers toward the center O of the cylinder for each magnetic pole.
  • each slit 15 is provided so that the slit spacing ⁇ between adjacent slits is equal, with the midpoint W of the slit 15 being spaced equally between adjacent slits.
  • the value of the coefficient k is set in the range of 0.6 ⁇ k ⁇ 0.8.
  • FIG. 6 is a cross-sectional view showing one magnetic pole of a 4-pole, 48-slot synchronous reluctance motor in which the number of layers of the slit groups is different from that in FIG. 4.
  • FIG. 7 is a cross-sectional view showing one magnetic pole of a 4-pole, 48-slot synchronous reluctance motor in which the number of layers of the slit groups is different from that in FIG. 4 and FIG. 6.
  • the rotor core 11 shown in FIG. 6 has four layers of slit groups
  • the rotor core 11 shown in FIG. 7 has five layers of slit groups.
  • FIG. 6 has four layers of slit groups
  • the rotor core 11 shown in FIG. 7 has five layers of slit groups.
  • model 101 the structure shown in FIG. 6 is called “model 102”
  • model 103 the structure shown in FIG. 7 is called “model 103”.
  • the slit intervals ⁇ between adjacent slits in multiple slit groups are all set to be equal.
  • Figure 8 shows the results of an electromagnetic field analysis performed on the rotor core 11 according to the first embodiment.
  • the upper part of Figure 8 shows the change in the torque stress ratio when the value of the coefficient k is changed.
  • the torque stress ratio is the ratio of the maximum torque to the stress.
  • the stress here refers to the maximum value of the stress generated in the rotor core 11.
  • the part with the maximum stress is the part with the lowest centrifugal force resistance, and the stress is introduced as an index representing the centrifugal force resistance of the rotor core 11.
  • the lower part of Figure 8 shows the change in the torque ripple factor (TRF) when the value of the coefficient k is changed.
  • the torque ripple factor is the ratio of the difference between the maximum and minimum values of the output torque to the average value of the output torque, i.e., the ratio of the pulsating component of the output torque to the average value of the output torque.
  • the plots marked with circles connected by a solid line represent the characteristics of model 101
  • the plots marked with triangles connected by a dashed line represent the characteristics of model 102
  • the plots marked with crosses connected by a two-dot chain line represent the characteristics of model 103.
  • the waveforms in the upper part are standardized with the torque stress ratio in model 101 when coefficient k is 0.9 being 1.0.
  • the waveforms in the lower part are standardized for each model with 50% of the torque pulsation rate in each model being 1.0.
  • FIG. 8 shows that if coefficient k is set to a value within the range of 0.6 ⁇ k ⁇ 0.8, the torque pulsation rate can be suppressed while obtaining a high torque stress ratio.
  • the slit spacing ⁇ can be made wider, making it easier to punch out the electromagnetic steel sheets that make up the rotor core 11, leading to reduced manufacturing costs. Therefore, by setting the coefficient k to a value within the range of 0.6 ⁇ k ⁇ 0.8, it is possible to achieve both high output torque and low torque ripple while further suppressing deterioration in manufacturability.
  • the synchronous reluctance motor includes a circular stator core in which a plurality of slots are formed at equal intervals along the inner peripheral surface, a winding housed in each slot, and a rotor core formed in a cylindrical shape on the inner surface side of the stator core.
  • the rotor core has an opening whose inner and outer edges are formed by two arcs that are convex toward the inside in the radial direction, and has a plurality of slits whose openings are divided by a center rib.
  • the slit group consisting of a plurality of slits is formed in layers toward the center O of the cylinder for each magnetic pole.
  • the angle formed by the midpoint W in the circumferential direction of the arc-shaped end along the outer peripheral surface of the rotor core at the arc-shaped opening of the slit closest to the outer periphery of the rotor core and the center O of the cylinder of the rotor core between adjacent slits is represented as the slit interval ⁇ .
  • the number of slots in the stator core is represented as S.
  • the coefficient k is set to a value within the range of 0.6 ⁇ k ⁇ 0.8, the slit interval ⁇ can be widened, and deterioration of manufacturability can be suppressed. Therefore, with the synchronous reluctance motor according to the first embodiment, it is possible to achieve both high output torque and low torque ripple while further suppressing deterioration of manufacturability.
  • Embodiment 2 In the first embodiment, the slit spacing between adjacent slits in the multiple slit groups is set to be equal for all of rotor core 11. In contrast, in the second embodiment, a rotor core 11 having a structure in which the slit spacing between at least one adjacent slit among the multiple slit groups is different from the slit spacing between the other adjacent slits will be described.
  • FIG. 9 is a diagram showing a first example of a rotor core 11 according to the second embodiment.
  • the slit spacing ⁇ ' between the first layer closest to the q-axis and the second layer is larger than the slit spacing ⁇ between the second layer and the third layer.
  • the coefficient k' is a positive real number, just like the coefficient k.
  • FIG. 10 is a diagram showing a second example of a rotor core 11 according to the second embodiment.
  • the slit group is composed of three layers, from the first layer to the third layer, whereas in FIG. 10, the slit group is composed of four layers, from the first layer to the fourth layer.
  • FIG. 10 shows an example in which the slit spacing ⁇ ' between the first layer closest to the q-axis and the second layer is larger than the slit spacing ⁇ between the second layer and the third layer and between the third layer and the fourth layer.
  • model 201 the structure shown in FIG. 10 is referred to as "model 202".
  • FIG. 11 is a diagram showing the results of an electromagnetic field analysis performed on the rotor core 11 according to the second embodiment.
  • the upper part of FIG. 11 shows the change in the torque stress ratio when the coefficient k' is changed to 0.6, 0.8, 0.9, and 1.0 when the coefficient k is 0.8.
  • the lower part of FIG. 11 shows the change in the torque pulsation rate when the coefficient k' is changed to 0.6, 0.8, 0.9, and 1.0 when the coefficient k is 0.8.
  • the coefficient k' is 0.6, this corresponds to the case where the slit interval ⁇ ' is larger than the slit interval ⁇ , as in the examples shown in FIG. 9 and FIG. 10.
  • the plots marked with circles connected by a solid line represent the characteristics of model 201
  • the plots marked with triangles connected by a dashed line represent the characteristics of model 202.
  • the torque pulsation rate increases in the case of model 201, but the increase in the torque pulsation rate is suppressed in the case of model 202.
  • the effect of the slit interval ⁇ ' between the first layer and the second layer on the torque pulsation rate is considered to be averaged in balance with the slit interval ⁇ between other layers.
  • model 202 since the number of layers is one more than that of model 201, it is presumed that the effect of the difference in the slit interval ⁇ ' is smaller than that of model 201.
  • the torque pulsation rate does not satisfy the specifications, it is possible to take measures such as increasing the number of layers of the slit group to bring the torque pulsation rate within the range of the specifications. Therefore, as long as the condition 0.6 ⁇ k ⁇ 0.8 described in the first embodiment is satisfied, it can be said that the value of the coefficient k does not need to be the same between all layers, and the value of the coefficient k between at least one layer may be different from the value of the coefficient k between the other layers.
  • the rotor core has at least three layers of slit groups, and the slit spacing between at least one of the at least three layers of slit groups is configured to be different from the slit spacing between the other adjacent slits. Even with this configuration, the effects described in the first embodiment can be obtained.
  • Embodiment 3 In the first embodiment, a 4-pole, 48-slot synchronous reluctance motor is described. In the third embodiment, a synchronous reluctance motor of another structure that can obtain the effects described in the first and second embodiments is described.
  • FIG. 12 is a cross-sectional view showing one magnetic pole of a 2-pole, 24-slot synchronous reluctance motor according to embodiment 3. As shown in FIG. 12, the stator 6 of the 2-pole, 24-slot synchronous reluctance motor 1 has 12 slots 14 per magnetic pole.
  • FIG. 13 is a cross-sectional view for explaining the shape, position, and layers of the slits 15 in the rotor core 11 shown in FIG. 12.
  • the d-axis is defined in the direction of the center line of the magnetic poles
  • the q-axis is defined in the direction of the center line between the magnetic poles.
  • the rotor core 11 has a number of slits 15, each of which is an opening that protrudes toward the outside in the radial direction of the rotor core 11, for each magnetic pole of the rotor core 11.
  • the slits 15 form spaces in the rotor core 11.
  • the slits 15 give the rotor core 11 a structure in which magnetic paths 16, which are magnetic parts made of a magnetic material that is the material of the electromagnetic steel sheet, and slits 15, which are non-magnetic parts made of air, appear alternately.
  • the slits 15 are arranged so that the angle ⁇ between adjacent slits and the midpoint W along the outer circumferential surface of the rotor core 11 at the opening of the slit 15 is equal to the distance between adjacent slits, as in FIG. 4. Also, as in FIG. 4, the angle between the d-axis and a straight line connecting the midpoint W of the slit 15 closest to the d-axis and the cylindrical center O of the rotor core 11 is set to be ⁇ /2.
  • the inner edge of the opening of the first layer is formed by an arc 15a that is convex toward the outside in the radial direction of the rotor core 11, and the outer edge of the opening of the first layer is formed by an arc 15b that is convex toward the outside in the radial direction of the rotor core 11.
  • the inner and outer edges of the second and third layers are formed in a similar manner.
  • the centers of the arcs 15a and 15b in the openings of the first to third layers are all on the q-axis.
  • the radius of the arc 15a is shorter than the radius of the arc 15b.
  • the radii of the arcs 15a and 15b in the first layer are longer than the radii of the arcs 15a and 15b in the second layer.
  • the relationship between the second and third layers is similar.
  • the openings of the third layer of slits 15 are formed at a certain distance from the d-axis and within their own magnetic poles so as not to extend beyond the adjacent magnetic poles, and the inner edges of the openings are formed so as to be contained within their own magnetic poles.
  • the rotor core 11 shown in Figs. 12 and 13 does not have a center rib, but may have a center rib like the rotor core 11 according to embodiment 1. That is, the rotor core 11 according to embodiment 3 may have multiple slits 15 whose openings are divided by a center rib, and a group of slits consisting of multiple slits 15 may be formed in layers toward the cylinder center O for each magnetic pole.
  • the rotor core 11 according to the third embodiment is configured to have a cylindrical shape on the inner surface side of the stator core 9, is convex radially outward, has a center located on the q-axis of the magnetic pole, and has an opening whose inner and outer edges are formed by two arcs with two radii of different lengths.
  • FIG. 14 shows the results of an electromagnetic field analysis performed on the rotor core 11 according to the third embodiment.
  • the upper part of FIG. 14 shows how the torque stress ratio changes when the value of the coefficient k is changed.
  • the lower part of FIG. 14 shows how the torque pulsation rate changes when the value of the coefficient k is changed.
  • the waveform in the upper part is normalized with the torque stress ratio set to 1.0 when the coefficient k is 0.9, just like in Figure 8.
  • the waveform in the lower part is normalized with 50% of the torque pulsation rate set to 1.0, just like in Figure 8.
  • the torque pulsation rate has a minimum value in the range of 0.6 ⁇ k ⁇ 0.8, and is a value less than 1.0. Therefore, even in the case of a two-pole synchronous reluctance motor, if the value of the coefficient k is set within the range of 0.6 ⁇ k ⁇ 0.8, it is possible to enjoy the effects described in the first embodiment.
  • 1 synchronous reluctance motor 2 power supply line, 3 control device, 4 shaft, 5 frame, 6 stator, 7 rotor, 8 bearing, 9 stator core, 10 winding, 11 rotor core, 12 core back, 13 teeth, 14 slot, 15 slit, 15a, 15b arc, 18 center rib, 19 magnetic gap.

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  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Abstract

Ce moteur à réluctance synchrone (1) comprend : un noyau de stator (9) ayant de multiples fentes (14) formées en son sein ; et un noyau de rotor (11) conçu sous une forme cylindrique sur un côté de surface interne du noyau de stator (9). Le noyau de rotor (11) comporte de multiples fentes (15), dont les ouvertures sont divisées par des nervures centrales (18). Un angle formé entre des fentes adjacentes par des points médians circonférentiels d'extrémités en forme d'arc suivant la surface périphérique externe du noyau de rotor (11) par rapport au centre de cylindre du noyau de rotor (11) au niveau d'ouvertures en forme d'arc des fentes (15) les plus proches de la périphérie externe du noyau de rotor (11) est défini comme un intervalle de fente et exprimé par θ, et le nombre des fentes du noyau de stator (9) est défini comme S. Puis, l'intervalle de fente θ est exprimé par θ = 360° / (S x k) à l'aide d'un coefficient k qui est un nombre réel positif, et le coefficient k est défini à une valeur dans la plage de 0,6 ≤ k ≤ 0,8.
PCT/JP2022/045139 2022-12-07 2022-12-07 Moteur à réluctance synchrone et dispositif d'entraînement de wagon WO2024121985A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/045139 WO2024121985A1 (fr) 2022-12-07 2022-12-07 Moteur à réluctance synchrone et dispositif d'entraînement de wagon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/045139 WO2024121985A1 (fr) 2022-12-07 2022-12-07 Moteur à réluctance synchrone et dispositif d'entraînement de wagon

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001258222A (ja) * 2000-03-10 2001-09-21 Mitsubishi Electric Corp リラクタンスモータ
JP2005006416A (ja) * 2003-06-12 2005-01-06 Mitsubishi Electric Corp 自己始動型リラクタンスモータ
WO2020194363A1 (fr) * 2019-03-22 2020-10-01 三菱電機株式会社 Moteur à réluctance synchrone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001258222A (ja) * 2000-03-10 2001-09-21 Mitsubishi Electric Corp リラクタンスモータ
JP2005006416A (ja) * 2003-06-12 2005-01-06 Mitsubishi Electric Corp 自己始動型リラクタンスモータ
WO2020194363A1 (fr) * 2019-03-22 2020-10-01 三菱電機株式会社 Moteur à réluctance synchrone

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