Synchronous reluctance motor and its design method

Abstract

This document provides a synchronous reluctance motor and a method for designing it. [Solution] A synchronous reluctance motor comprising a plurality of stator slots, a plurality of stator teeth, the outer edge of the stator slot, and the width (W) of the stator yoke portion. y A stator including a motor pole and a rotor including a plurality of motor poles, each motor pole including a plurality of rotor barriers and a first magnetic channel to the nth magnetic channel, the first magnetic channel including the first magnetic channel width (W1), and the nth magnetic channel including the nth magnetic channel width (W n ) includes, and each motor pole count includes the sum of the magnetic channel widths (ΣW), and the formula for the sum of the magnetic channel widths is, JPEG2026059716000035.jpg9153 The sum of the magnetic channel widths (ΣW) and the stator yoke width (W) are used. y The relationship between ) JPEG2026059716000036.jpg11153 That is the case.

Description

[Technical Field]

[0001] The present invention relates to the structure of a synchronous reluctance motor and a method for designing the same, and more specifically, to a structure that can efficiently utilize the motor stator and rotor rail core, and at the same time has output performance of high conversion efficiency, high output torque and low torque ripple, and a synchronous reluctance motor and a method for designing the same. [Background technology]

[0002] Currently, induction motors are used in 90% of industrial motors with integer horsepower, and within that, motors with an output power of 30 horsepower (HP) or less account for the largest production volume, with many motor manufacturers being small and medium-sized enterprises. Because induction motors under 30 HP include 2-pole, 4-pole, and 6-pole designs, there are many different models, resulting in high mold investment costs. This discourages motor manufacturers from developing and producing highly efficient motors, hindering their widespread adoption. In the current motor industry, with the exception of a few large motor manufacturers, many small motor manufacturers cannot provide fully efficient motors. Many industrial motors with insufficient efficiency to meet international regulations are in circulation, resulting in the inefficient use of valuable energy and raw materials, posing a significant energy management challenge for governments worldwide. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] U.S. Patent No. 5,893,205 [Patent Document 2] Chinese Patent Application Publication No. 113315437, Specification A [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] The present invention is a motor structure with a 4-pole rotor, adopting a motor stator that can be shared with an induction motor, designing a synchronous reluctance motor suitable for use in combination with an inverter, and reducing the stress on motor manufacturers faced with various models and the corresponding huge investment costs when developing 2-pole / 4-pole / 6-pole high-efficiency induction motors. The present invention can reduce the investment costs for developing a full series of high-efficiency motors while promoting the popularization of the distribution of high-efficiency motors. The present invention has the following advantages. 1. Efficiently reduce the use of raw materials, including processes such as unnecessary rotor aluminum die-casting and copper die-casting, design without secondary losses of the rotor, efficiently reduce the use of silicon steel sheets and copper wires, reduce damage to the environment, and efficiently simplify the process of separating and reusing raw materials in the motor recovery process. 2. Improve the output efficiency of the motor, reduce damage to the environment, and achieve the purpose of using energy more efficiently. 3. Reduce torque ripple, and in addition to the application of speed regulation, the synchronous reluctance motor can also be applied to the field of advanced servo motion control. 4. Provide a systematic design process under predetermined stator conditions, simplify the design process, reduce the design time, reduce the development cost, and realize a high-performance synchronous reluctance motor with high efficiency, high power density and low torque ripple.

Means for Solving the Problem

[0005] A synchronous reluctance motor, comprising a stator including a plurality of stator slots, a plurality of stator tooth portions and an outer edge of the stator slot, each of the plurality of stator slots includes a stator slot end portion, and a stator yoke portion width (W) is provided between a tangent of the edge at the center of the stator slot end portion and a tangent of the outer edge at the outer edge of the stator slot yA stator including ), and a rotor including a plurality of motor pole numbers, each of the plurality of motor pole numbers including a plurality of rotor barriers and a plurality of magnetic conduction channels, the plurality of magnetic conduction channels including from a first magnetic conduction channel to an nth magnetic conduction channel, and the plurality of rotor barriers and the plurality of magnetic conduction channels being offset; and a rotor, wherein the first magnetic conduction channel includes a first magnetic conduction channel width (W1), the nth magnetic conduction channel includes a nth magnetic conduction channel width (W n ), n is a positive integer greater than 1, each of the plurality of motor pole numbers includes a sum of magnetic conduction channel widths (ΣW), and a mathematical formula for the sum of magnetic conduction channel widths (ΣW) is the sum of the magnetic conduction channel widths JPEG2026059716000002.jpg11153, and the relationship between the sum of magnetic conduction channel widths (ΣW) and the stator yoke portion width (W y ) is JPEG2026059716000003.jpg13153. A synchronous reluctance motor characterized by this.

[0006] Preferably, each of the plurality of stator tooth portions includes a stator tooth portion width (W t ), and the relationship between the first magnetic conduction channel width (W1) and the stator tooth portion width (W t ) is JPEG2026059716000004.jpg12153.

[0007] Preferably, the relationship from the first magnetic conduction channel width (W1) to the nth magnetic conduction channel width (W n ) is JPEG2026059716000005.jpg8153.

[0008] Preferably, the relationship between the first magnetic conduction channel width (W1) and the nth magnetic conduction channel width (W n ) is JPEG2026059716000006.jpg13153.

[0009] Preferably, the number of the plurality of stator slots is any one of 24 slots, 36 slots, or 48 slots.

[0010] On the other hand, the present invention also includes a step of setting the geometric dimensions of the stator, the number of the plurality of stator slots, the stator tooth width (W t ), and the stator yoke width (W y ), where the stator includes a stator outer edge, each of the plurality of stator slots includes a stator slot end, and the stator yoke width (W y ) is included between the edge tangent at the center of the stator slot end and the outer edge tangent of the stator slot on the outer edge of the stator slot, and a step of setting the sum (ΣW) of the magnetic conduction channel widths at the motor pole number of the rotor, where the relationship between the sum (ΣW) of the magnetic conduction channel widths and the stator yoke width (W y ) is JPEG2026059716000007.jpg13153. A design method for a synchronous reluctance motor is provided, which includes these steps.

[0011] Furthermore, the design method of the present invention further includes a step of setting the number of a plurality of rotor barriers and a plurality of magnetic conduction channels at the motor pole number of the rotor. The magnetic conduction channels include from the first magnetic conduction channel to the nth magnetic conduction channel. The first magnetic conduction channel includes a first magnetic conduction channel width (W1), the nth rotor magnetic conduction channel includes an nth magnetic conduction channel width (W n ), n is a positive integer greater than 1, and the sum of the magnetic conduction channel widths JPEG2026059716000008.jpg14153.

[0012] Furthermore, the design method of the present invention further includes a step of setting the first magnetic conduction channel width (W1). The relationship between the first magnetic conduction channel width (W1) and the stator tooth width (W t ) is JPEG2026059716000009.jpg13153.

[0013] Furthermore, the design method of the present invention is to determine the nth conduit channel width (W) from the first conduit channel width (W1). n The relationship up to ) The step further includes setting that the filename is JPEG2026059716000010.jpg12153.

[0014] Furthermore, the design method of the present invention is characterized by the first magnetic channel width (W1) and the n magnetic channel width (W n The relationship with ) The step further includes setting that the filename is JPEG2026059716000011.jpg12153. [Effects of the Invention]

[0015] As can be seen from the above, the present invention provides a synchronous reluctance motor and a method for designing the same. The versatility of the synchronous reluctance motor of the present invention is very high, and by simply adjusting the parameters of the structural relationship between the rotor and stator, a magnetoresistive motor structure suitable for different applications can be designed. Furthermore, by designing a single pole configuration (e.g., 4 poles) and combining it with an inverter, the development period and investment cost of a highly efficient motor can be reduced. The output characteristics of high efficiency and high power density allow for efficient reduction of raw material use and more efficient use of electrical energy. The output characteristics of high output torque and low torque ripple can be applied to high value-added applications (e.g., tool machines, automated equipment and electric carriers, etc.), improving the product value of motor manufacturers. Moreover, the present invention also provides a systematized design process and presents a method for designing a synchronous reluctance motor that combines high efficiency, high power density and low torque ripple. [Brief explanation of the drawing]

[0016] [Figure 1] This is a schematic diagram showing the structure of a conventional synchronous reluctance motor. [Figure 2] This is a schematic diagram showing the structure of the rotor in a synchronous reluctance motor according to an embodiment of the present invention. [Figure 3] This graph shows the relationship curve between the sum of the magnetic channel widths (ΣW) / stator yoke width (Wy) and torque according to an embodiment of the present invention. [Figure 4] This is a schematic diagram showing the structure of a synchronous reluctance motor according to another embodiment of the present invention. [Figure 5] This is a schematic diagram showing the structure of a synchronous reluctance motor according to yet another embodiment of the present invention. [Figure 6] This is a schematic diagram showing the structure of a synchronous reluctance motor according to yet another embodiment of the present invention. [Figure 7] This flowchart shows a design method for a synchronous reluctance motor according to an embodiment of the present invention. [Figure 8] This flowchart shows a design method for a synchronous reluctance motor according to another embodiment of the present invention. [Modes for carrying out the invention]

[0017] The embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the embodiments described below, and can take various forms as long as they fall within the technical scope of the present invention.

[0018] Figure 1 is a schematic diagram illustrating the structure of a conventional synchronous reluctance motor. Referring to Figure 1, the structure of a synchronous reluctance motor typically includes a stator 10 and a rotor 20. The stator 10 includes a plurality of stator slots 101, a plurality of stator teeth 103, and a stator outer edge 105, the stator outer edge 105 being the circumference of the stator 10, or referred to as the stator outer circumference, and each stator slot 101 includes a stator slot end 1011, and the stator yoke width (W) is located between the edge tangent L1 at the center of the stator slot end 1011 and the outer edge tangent L2 at the stator outer edge 105. y ) including the stator yoke width (W y) is defined as the shortest distance from the end edge of the stator slot 101 to the outer edge 105 of the stator, and each stator tooth 103 is defined as the stator tooth width (W t ) includes. For this reason, the structure of the stator 10 is stator yoke width (W y ) and stator tooth width (W t ) includes.

[0019] The stator slots 101 are installed evenly around the stator 10 with spacing between them, and the stator teeth 103 are similarly installed evenly around the stator 10 with spacing between them, so that the stator slots 101 and stator teeth 103 are offset from each other when installed on the stator 10. The stator slots 101 are used to accommodate electrical conductors (not shown), which are advantageous for the transmission of electrical energy and generate a magnetic field on the stator 10, and the stator teeth 103 are used to transmit the magnetic field to the rotor 20.

[0020] The rotor 20 includes multiple motor poles 201, for example, Figure 1 shows four motor poles 201, each motor pole 201 including multiple rotor barriers 203 and multiple magnetic conduit channels 205, and the rotor barriers 203 and magnetic conduit channels 205 are installed offset from each other.

[0021] This invention relates to the sum of the widths of the multiple magnetic conduit channels 205 (ΣW) and the width of the stator yoke (W). y By designing and adjusting the structure of a synchronous reluctance motor for the ratio relationship between ), it is possible to achieve characteristics such as low development costs, broad versatility, high output torque, low torque ripple, and the ability to design as a system, which will be explained in detail below.

[0022] Figure 2 is a schematic diagram illustrating the structure of the rotor 20 in a synchronous reluctance motor according to an embodiment of the present invention. Figure 3 shows the sum of the magnetic channel widths (ΣW) / stator yoke width (W) according to an embodiment of the present invention. yThis graph illustrates the relationship curve between the numerical value of ) and torque. Referring to Figures 1 to 3, in an embodiment of the present invention, the rotor 20 includes four motor poles 201, each motor pole 201 includes a plurality of rotor barriers 203 and a plurality of magnetic conduit channels 205, the plurality of magnetic conduit channels 205 include the first magnetic conduit channel to the nth magnetic conduit channel, the first magnetic conduit channel includes the first magnetic conduit channel width (W1), and the nth magnetic conduit channel includes the nth magnetic conduit channel width (W n ) is included, and n is a positive integer greater than 1. Furthermore, the structure of each motor with 201 poles is the same, so by examining the structure of one motor with 201 poles, the structures of four motors with 201 poles can be obtained. Note that this invention is a motor structure for a 4-pole rotor (i.e., four motors with 201 poles), but the number of motors with 201 poles may be adjusted to six, eight, or other quantities depending on actual needs.

[0023] For example, in the structure of the rotor 20 shown in Figure 2, one motor pole number 201 includes six magnetic channels, i.e., n is 6, and includes the first magnetic channel 2051, the second magnetic channel 2052, the third magnetic channel 2053, the fourth magnetic channel 2054, the fifth magnetic channel 2055, and the sixth magnetic channel 2056. Regarding the line inductance of the synchronous reluctance motor, due to the special structure of the rotor 20, the line inductance of the stator changes according to the position change due to the rotation of the rotor 20. When the line inductance of the stator is at its maximum, the connecting line extending from the rotor axis C1 to the outer edge of the rotor and passing through the center of the first magnetic channel 2051 is defined as axis d (or direct axis), and the point where the electrical angle of the direct axis exceeds 90 degrees is defined as axis q (or quadrature axis). In Figure 2, the magnetic channel provided on axis d is defined as the first magnetic channel 2051, and the magnetic channels extending from the rotor axis C1 to the outer circumference of the rotor along the axis q direction are defined sequentially as the second magnetic channel 2052, the third magnetic channel 2053...the (n-1)th magnetic channel and the nth magnetic channel, and both axis d and axis q are connected to the rotor axis C1.

[0024] Furthermore, the first magnetic channel 2051 has a first magnetic channel width (W1), the second magnetic channel 2052 has a second magnetic channel width (W2), the third magnetic channel 2053 has a third magnetic channel width (W3), and so on, until the fifth magnetic channel 2055 has a fifth magnetic channel width (W5(i.e., W n-1 )) has a sixth magnetic channel 2056 with a sixth magnetic channel width (W6 (i.e., W n )) has. Each motor pole count of 201 includes the sum of the magnetic channel widths (ΣW), and the formula for the sum of the magnetic channel widths (ΣW) is the sum of the magnetic channel widths The image is JPEG2026059716000012.jpg9153. In other words, in this embodiment with 201 motor poles, the sum of the magnetic channel widths (ΣW) is equal to the first magnetic channel width (W1) / 2 ~ the sixth magnetic channel width (W n This is the sum of the numerical values.

[0025] In this invention, the sum of the magnetic channel widths (ΣW) and the stator yoke width (W) are further considered. y The relationship between ) The filename is set to JPEG2026059716000013.jpg11153. As shown in Figure 3, the sum of the magnetic channel widths (ΣW) / stator yoke width (W) y The relationship curve between the numerical value and torque, ΣW / W y It can be seen that a large output torque can be obtained when the value is between 0.7 and 1.3. Therefore, in the structure of the rotor 20, the present invention relates to the sum of the magnetic channel widths (ΣW) and the width of the stator yoke section (W). y By simplifying the relationship between the two components, the synchronous reluctance motor can obtain a large output torque.

[0026] Furthermore, referring to Figures 1 and 2, in other embodiments of the present invention, the first magnetic channel width (W1) and the stator tooth width (W t The relationship between ) It may be adjusted to satisfy JPEG2026059716000014.jpg9153, and such a structure allows the synchronous reluctance motor to obtain even lower torque ripple.

[0027] In the embodiment of the present invention, the first magnetic channel width (W1) to the nth magnetic channel width (W n The relationship up to ) is, JPEG2026059716000015.jpg10153, where the first magnetic channel width (W1) and the nth magnetic channel width (W n The relationship between ) is, JPEG2026059716000016.jpg12153, and a better operating effect is obtained for the magnetoresistive motor. It should be noted here that in other embodiments of the present invention, the first magnetic channel width (W1) to the nth magnetic channel width (W) is adjusted according to the actual demand. n The relationship between the widths up to ) may be further adjusted according to other relational expressions, or the first magnetic channel width (W1) and the nth magnetic channel width (W n The relationship between the widths of the terms may be adjusted according to other relational expressions.

[0028] Figure 4 is a schematic diagram illustrating a synchronous reluctance motor according to another embodiment of the present invention. Referring to Figure 4, the configuration of the synchronous reluctance motor in Figure 4 includes 24 stator slots 101, and the stator tooth width (W t ) is 5.1 mm, stator yoke width (W y The width of the rotor barrier 203 is 12 mm. The number of rotor barriers 203 is 3, and includes a first magnetic channel 2051, a second magnetic channel 2052, and a third magnetic channel 2053, with the width of the first magnetic channel (W1) being 4.95 mm, the width of the second magnetic channel (W2) being 4.83 mm, and the width of the third magnetic channel (W3) being 4.7 mm, and the width of the first magnetic channel (W1) is equal to the width of the stator teeth (W t ) is 0.97 times the stator yoke width (W), and the sum of the magnetic channel widths (ΣW) is equal to the stator yoke width (W y ) is equal to and The image is JPEG2026059716000017.jpg11153. In this embodiment, the output torque is 6.36 Nm and the torque ripple is 14.80%.

[0029] Figure 5 is a schematic diagram illustrating a synchronous reluctance motor according to yet another embodiment of the present invention. Referring to Figure 5, the configuration of the synchronous reluctance motor in Figure 5 includes 36 stator slots 101 and a stator tooth width (W t ) is 4mm, and the stator yoke width (W y The width of the rotor barrier 203 is 15 mm. The number of rotor barriers 203 is 4, including the first magnetic channel 2051, the second magnetic channel 2052, the third magnetic channel 2053, and the fourth magnetic channel 2054, the width of the first magnetic channel (W1) is 4 mm, the width of the second magnetic channel (W2) is 3.9 mm, the width of the third magnetic channel (W3) is 3.9 mm, and the width of the fourth magnetic channel (W4) is 3.9 mm, and the width of the first magnetic channel (W1) is equal to the width of the stator teeth (W t ) is equal to the sum of the magnetic channel widths (ΣW), and the sum of the stator yoke widths (W) is equal to the stator yoke width (W) y ) 0.91 times, and The image is JPEG2026059716000018.jpg13153. In this example, the output torque is 9.69 Nm and the torque ripple is 10.62%.

[0030] Figure 6 is a schematic diagram illustrating a synchronous reluctance motor according to yet another embodiment of the present invention. Referring to Figure 6, the configuration of the synchronous reluctance motor in Figure 6 includes 48 stator slots 101 and a stator tooth width (W t ) is 5.4 mm and stator yoke width (W yThe width of the stator teeth is 22.5 mm. The rotor barrier 203 has 6 components, including a first magnetic channel 2051, a second magnetic channel 2052, a third magnetic channel 2053, a fourth magnetic channel 2054, a fifth magnetic channel 2055, and a sixth magnetic channel 2056, with the width of the first magnetic channel (W1) being 4.9 mm, the second magnetic channel (W2) being 4.9 mm, the third magnetic channel (W3) being 4.9 mm, the fourth magnetic channel (W4) being 4.9 mm, the fifth magnetic channel (W5) being 4.9 mm, and the sixth magnetic channel (W6) being 4.9 mm, and the width of the first magnetic channel (W1) being equal to the width of the stator teeth (W t ) is 0.91 times the stator yoke width (W), and the sum of the magnetic channel widths (ΣW) is equal to the stator yoke width (W y ) is 1.2 times, The image is JPEG2026059716000019.jpg10153. In this example, the output torque is 82.03 Nm and the torque ripple is 5.75%.

[0031] As demonstrated by the above embodiment, the present invention can be applied to stator slot 101 structures with 24, 36, or 48 slots, and the special structure of the present invention achieves the technical effect of improving the power density and output torque of the motor while simultaneously reducing torque ripple.

[0032] Figure 7 is a flowchart illustrating a design method for a synchronous reluctance motor according to an embodiment of the present invention. Referring to Figures 1 to 3 and Figure 7, the design method for a synchronous reluctance motor according to the present invention includes steps S10 and S20. Step S10 includes the geometric dimensions of the stator 10, the number of stator slots 101, and the stator tooth width (W t ) and stator yoke width (W y The stator 10 includes the outer edge 105, and each stator slot 101 includes the stator slot end 1011, and the stator yoke width (W y) is the shortest distance between the edge tangent L1 at the center of the stator slot end 1011 and the outer edge tangent L2 at the outer edge 105 of the stator. Step S20 sets the sum of the magnetic channel widths (ΣW) in the motor pole number 201 of the rotor 20, and the sum of the magnetic channel widths (ΣW) and the stator yoke width (W) y The relationship between ) The image is JPEG2026059716000020.jpg11153. The geometric dimensions of the stator 10 include geometric dimension values ​​such as the radius of the stator 10 and the shape of the slots, and the number of motor poles 201 is four. Although the present invention is a motor structure for a 4-pole rotor (i.e., the number of motor poles 201 is four), the number of motor poles 201 can be adjusted to six, eight, or other numbers depending on the actual demand.

[0033] Figure 8 is a flowchart illustrating a design method for a synchronous reluctance motor according to another embodiment of the present invention. Referring to Figures 1 to 3 and Figure 8, in another embodiment of the present invention, the design method for a synchronous reluctance motor further includes step S301 and / or step S401 and / or step S501 and / or step S601. Step S301 sets the number (n) of the plurality of rotor barriers 203 and plurality of magnetic conduit channels 205 for the motor pole number 201 of the rotor 20, wherein the number of motor poles 201 includes the first magnetic conduit channel 2051 to the nth magnetic conduit channel, the first magnetic conduit channel 2051 includes the first magnetic conduit channel width (W1), and the nth rotor magnetic conduit channel includes the nth magnetic conduit channel width (W n ) is included, n is a positive integer greater than 1, and the sum of the magnetic channel widths The file is JPEG2026059716000021.jpg9153.

[0034] Step S401 sets the first magnetic channel width (W1), and the first magnetic channel width (W1) and the stator tooth width (W t The relationship with ) Set to JPEG2026059716000022.jpg9153. Step S501 is to set the first magnetic channel width (W1) to the nth magnetic channel width (W n The relationship up to ) Set to JPEG2026059716000023.jpg10153. Step S601 sets the first magnetic channel width (W1) and the n magnetic channel width (W n The relationship with ) Set the filename to JPEG2026059716000024.jpg12153.

[0035] As can be seen from the above-described design method for a synchronous reluctance motor of the present invention, the present invention provides a systematized design method that allows for the design of a synchronous reluctance motor having high output torque and low torque ripple simply by systematically adjusting key parameters, thereby simplifying and systematizing the conventional, highly complex design process.

[0036] As can be seen from the design method described above, the present invention provides a synchronous reluctance motor and its design method, and the synchronous reluctance motor and its design method of the present invention have the following effects and advantages: 1. The versatility of the synchronous reluctance motor of the present invention is very high, and by adjusting the structural relationship parameters of the rotor and stator, a magnetoresistive motor structure suitable for different applications can be designed. By designing one type of pole configuration (e.g., 4 poles) and combining it with an inverter, the number of highly efficient motor models, development time and investment costs can be reduced. 2. The output characteristics of high efficiency and high output torque allow for efficient reduction of the use of raw materials such as silicon steel billets and copper wires, and further efficient use of electrical energy. 3. The output characteristics of high output torque and low torque ripple can be applied to high value-added applications (e.g., tool machines, automated equipment and electric carriers). 4. The present invention provides a systematized design process and a systematized design method that realizes a synchronous reluctance motor that combines high efficiency, high power density and low torque ripple by defining new design parameters and providing design upper and lower limits by reducing design parameters. [Explanation of Symbols]

[0037] 10 stator 20 rotors 101 stator slots 103 Stator teeth 105 Stator outer edge 1011 Stator slot end 201 motor poles 203 Rotor Barrier 205 Magnetic channel 2051 First magnetic channel 2052 Second magnetic channel 2053 Third magnetic channel 2054 Fourth magnetic channel 2055 Fifth Magnetic Channel 2056 Sixth Magnetic Conduit Channel L1 is the marginal tangent at the center of the stator slot end. L2 is the outer edge tangent at the outer edge of the stator. W y Stator yoke width W t Stator tooth width d, q axis C1 rotor axis W1 First magnetic channel width W2 Second magnetic channel width W3 Third Magnetic Channel Width W4 Fourth magnetic channel width W5 Fifth magnetic channel width W6 sixth magnetic channel width W n nth magnetic channel width W n-1 The (n-1)th magnetic channel width ΣW Sum of magnetic channel widths S10, S20 Step S301, S401, S501, S601 Step

Claims

1. It is a synchronous reluctance motor, A stator comprising a plurality of stator slots, a plurality of stator teeth, and the outer edges of the stator slots, wherein each of the plurality of stator slots includes a stator slot end, and the stator yoke width (W) is located between the tangent to the edge at the center of the stator slot end and the tangent to the outer edge at the outer edge of the stator slot. y A stator including, A rotor comprising a plurality of motor poles, each of which comprises a plurality of rotor barriers and a plurality of magnetic conduit channels, wherein the plurality of magnetic conduit channels comprises a first magnetic conduit channel to the nth magnetic conduit channel, and the plurality of rotor barriers and the plurality of magnetic conduit channels are offset from each other, The first magnetic channel has a first magnetic channel width (W 1 ) including the nth magnetic channel having the nth magnetic channel width (W n ) is included, and n is a positive integer greater than 1, Each of the aforementioned number of motor poles includes the sum of the magnetic channel widths (ΣW), and the formula for the sum of the magnetic channel widths (ΣW) is the sum of the magnetic channel widths And, The sum of the magnetic channel widths (ΣW) and the stator yoke width (W) y The relationship is A synchronous reluctance motor characterized by the following:

2. Each of the aforementioned plurality of stator teeth has a stator tooth width (W t ) including the first magnetic channel width (W 1 ) and the width of the stator teeth (W t The relationship is The synchronous reluctance motor according to claim 1, characterized in that it is the same as the one described in claim 1.

3. The relationship from the first magnetic conduction channel width (W 1 ) to the nth magnetic conduction channel width (W n ) is The synchronous reluctance motor according to claim 1, characterized in that it is the same as the one described in claim 1.

4. The width of the first magnetic channel (W) 1 ) and the n magnetic channel width (W n The relationship is The synchronous reluctance motor according to claim 1, characterized in that it is the same as described in claim 1.

5. The synchronous reluctance motor according to claim 1, characterized in that the number of the plurality of stator slots is 24 slots, 36 slots, or 48 slots.

6. Stator geometric dimensions, number of stator slots, stator tooth width (W t ) and stator yoke width (W y A step of setting the stator yoke width (W) wherein the stator includes the outer edge of the stator, each of the plurality of stator slots includes the end of the stator slot, and the distance between the edge tangent at the center of the stator slot end and the outer edge tangent at the outer edge of the stator slot is the distance between the stator yoke width (W) y ) a step including, A step of setting the sum of the magnetic channel widths (ΣW) in the motor poles of the rotor, wherein the sum of the magnetic channel widths (ΣW) and the stator yoke width (W) y The relationship is The step is, A method for designing a synchronous reluctance motor, characterized by including [a specific element].

7. The step further includes setting the number of rotor barriers and magnetic conduit channels in the motor poles of the rotor, The magnetic channel includes the first magnetic channel to the nth magnetic channel, and the first magnetic channel has a first magnetic channel width (W 1 ) and the nth rotor magnetic channel has a magnetic channel width (W n ) including, n is a positive integer greater than 1, and the sum of the magnetic channel widths The design method for a synchronous reluctance motor according to claim 6, characterized in that it is the same as described in claim 6.

8. The width of the first magnetic channel (W) 1 This further includes the step of setting ), The width of the first magnetic channel (W) 1 ) and the width of the stator teeth (W t The relationship with ) The design method for a synchronous reluctance motor according to claim 7, characterized in that it is the same as the present invention.

9. The width of the first magnetic channel (W) 1 ) from the n magnetic channel width (W n The relationship up to ) A method for designing a synchronous reluctance motor according to claim 7, further comprising the step of setting that

10. The width of the first magnetic channel (W) 1 ) and the n magnetic channel width (W n The relationship with ) A method for designing a synchronous reluctance motor according to claim 7, further comprising the step of setting that

Images