Synchronous reluctance motor and design method thereof

Abstract

The present invention provides a synchronous reluctance motor and a design method thereof, the synchronous reluctance motor comprising: a stator comprising a plurality of stator slots, a plurality of stator teeth, a stator outer edge, and a stator yoke width (Wy); the rotor comprises a plurality of motor poles, each motor pole comprises a plurality of rotor barriers and first to nth magnetic conduction channels, the first magnetic conduction channel comprises the width (W1) of the first magnetic conduction channel, the nth magnetic conduction channel comprises the width (Wn) of the nth magnetic conduction channel, n is a positive integer greater than 1, and n is a positive integer greater than 1. Each motor pole number comprises the sum (Sigma W) of the widths of the magnetic conduction channels, the formula of the sum (Sigma W) of the widths of the magnetic conduction channels is shown in the specification, and the relationship between the sum (Sigma W) of the widths of the magnetic conduction channels and the width (Wy) of the yoke part of the stator is 0.7 < = Sigma W / Wy < = 1.3. The synchronous reluctance motor and the design method thereof are very high in applicability, and reluctance motor structures suitable for different application occasions can be designed only by adjusting structural relation parameters of the rotor and the stator.

Description

Technical Field

[0001] This invention relates to the structure and design method of a synchronous reluctance motor, and in particular to a structure that can effectively utilize the stator and rotor core of the motor, enabling the synchronous reluctance motor to simultaneously possess high conversion efficiency, high output torque, and low torque ripple output performance, as well as its design method. Background Technology

[0002] Currently, up to 90% of industrial motors with whole horsepower output still use induction motors. Motors with output power below 30 horsepower (HP) are the most numerous, and most motor manufacturers are small and medium-sized enterprises (SMEs). Because induction motors below 30HP include two-pole, four-pole, and six-pole designs, the large number of models results in high mold investment costs. This leads to low willingness among motor manufacturers to develop and produce high-efficiency motors, hindering their promotion. Currently, apart from a few large motor manufacturers, many small and medium-sized motor manufacturers are still unable to provide complete high-efficiency motor products. This results in many industrial motors on the market whose efficiency does not meet international regulations, making it difficult to effectively utilize precious energy and raw materials, becoming a very thorny energy problem for governments worldwide. Summary of the Invention

[0003] To address the aforementioned technical problems, embodiments of the present invention provide a synchronous reluctance motor, comprising: a stator including a plurality of stator slots, a plurality of stator teeth, and a stator outer edge, each of the stator slots including a stator slot bottom end, and the distance between the tangent of the center edge of the stator slot bottom end and the tangent of the stator outer edge including a stator yoke width (W). y The rotor includes a plurality of motor poles, each of which includes a plurality of rotor barriers and a plurality of magnetic channels, the magnetic channels including a first magnetic channel to an nth magnetic channel, and the rotor barriers and the magnetic channels are staggered, wherein the first magnetic channel includes a first magnetic channel width (W1), the nth magnetic channel includes an nth magnetic channel width (W2). n ), where n is a positive integer greater than 1, and each of these motor pole numbers includes a total magnetic channel width (∑W), the formula for which is: Among them, the sum of the widths of the magnetic conductive channels (∑W) and the width of the stator yoke (W) y The relationship is: 0.7 ≤ ∑W / W y ≤1.3.

[0004] Preferably, each of these stator teeth includes a certain tooth width (W) tThe width of the first magnetic channel (W1) and the width of the stator tooth (W) t The relationship is: 0.85 ≤ W1 / W t ≤1.15.

[0005] Preferably, the width of the first magnetic channel (W1) to the width of the nth magnetic channel (W n The relationship is: W1≥W2≥…W n-1 ≥W n .

[0006] Preferably, the width of the first magnetic channel (W1) and the width of the nth magnetic channel (W) n The relationship is: (W1-W) n )≤0.2(∑W / (n-0.5)).

[0007] Preferably, the number of stator slots is one of 24 slots, 36 slots, or 48 slots.

[0008] On the other hand, the present invention also provides a design method for a synchronous reluctance motor, comprising the following steps: setting the geometric dimensions of a stator, the number of a plurality of stator slots, and the stator tooth width (W). t ) and a certain yoke width (W) y The stator includes a stator outer edge, each of the stator slots includes a stator slot bottom end, and the distance between the tangent of the center edge of the stator slot bottom end and the tangent of the outer edge of the stator includes the width of the stator yoke (W). y ); and setting the total width of a magnetic channel in a rotor with a number of motor poles (∑W), wherein the total width of the magnetic channel (∑W) and the width of the stator yoke (W y The relationship is: 0.7 ≤ ∑W / W y ≤1.3.

[0009] Furthermore, the design method of the present invention further includes the following steps: setting the number of a plurality of rotor barriers and a plurality of magnetic channels in the number of motor poles of the rotor, wherein the magnetic channels include a first magnetic channel to an nth magnetic channel, the first magnetic channel includes a first magnetic channel width (W1), and the nth rotor magnetic channel includes an nth magnetic channel width (W). n ), where n is a positive integer greater than 1, the formula for the total width of the magnetic channel (∑W) is:

[0010] Furthermore, the design method of the present invention further includes the following steps: setting the width (W1) of the first magnetic channel, wherein the width (W1) of the first magnetic channel and the width (W) of the stator tooth portion are...t The relationship is: 0.85 ≤ W1 / W t ≤1.15.

[0011] Furthermore, the design method of the present invention further includes the following steps: setting the width of the first magnetic channel (W1) to the width of the nth magnetic channel (W2). n The relationship is: W1≥W2≥…W n-1 ≥W n .

[0012] Furthermore, the design method of the present invention further includes the following steps: setting the width of the first magnetic channel (W1) and the width of the nth magnetic channel (W2). n The relationship is: (W1-W) n )≤0.2(∑W / (n-0.5)).

[0013] Compared with the prior art, the synchronous reluctance motor and its design method provided by the embodiments of the present invention have at least the following beneficial effects:

[0014] The synchronous reluctance motor of this invention has extremely high applicability; only the structural parameters of the rotor and stator need to be adjusted to design a reluctance motor structure suitable for different applications. Specifically, the design with a single pole configuration (such as four poles) combined with the use of a frequency converter can effectively reduce the development time and investment cost of high-efficiency motors. The high efficiency and high power density output characteristics can effectively reduce the use of raw materials and more efficiently utilize electrical energy. The high output torque and low torque ripple output characteristics can be applied to high-value-added applications (such as machine tools, automated equipment, and electric vehicles), increasing the product value for motor manufacturers. Furthermore, this invention provides a systematic design process and proposes a design method for synchronous reluctance motors that combine high efficiency, high power density, and low torque ripple. Attached Figure Description

[0015] Those skilled in the art will gain a better understanding of the various aspects, specific features, and advantages of the present invention by referring to the accompanying drawings, which include:

[0016] Figure 1 This is a schematic diagram of the rotor and stator structure of a synchronous reluctance motor in the prior art.

[0017] Figure 2 This is a schematic diagram of the rotor structure in a synchronous reluctance motor according to an embodiment of the present invention.

[0018] Figure 3 It is the sum of the magnetic channel widths (∑W) / the stator yoke width (W) of an embodiment of the present invention. y A schematic diagram showing the relationship between the numerical value of torque and torque.

[0019] Figure 4 This is a schematic diagram of the structure of a synchronous reluctance motor according to another embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of a synchronous reluctance motor according to another embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of a synchronous reluctance motor according to another embodiment of the present invention.

[0022] Figure 7 This is a flowchart of a design method for a synchronous reluctance motor according to an embodiment of the present invention.

[0023] Figure 8 This is a flowchart of a design method for a synchronous reluctance motor according to another embodiment of the present invention.

[0024] [Explanation of Labels in the Attached Image]

[0025] 10: Stator;

[0026] 20: Rotor;

[0027] 101: Stator slot;

[0028] 103: Stator teeth;

[0029] 105: Stator outer edge;

[0030] 1011: Stator slot bottom;

[0031] 201: Number of poles in the motor;

[0032] 203: Rotor barrier;

[0033] 205: Magnetic channel;

[0034] 2051: The first magnetic channel;

[0035] 2052: The second magnetic channel;

[0036] 2053: The third magnetic channel;

[0037] 2054: The fourth magnetic channel;

[0038] 2055: The fifth magnetic channel;

[0039] 2056: The sixth magnetic channel;

[0040] L1: Tangent line at the center edge of the bottom end of the stator slot;

[0041] L2: Tangent line at the outer edge of the stator;

[0042] Wy : Width of stator yoke;

[0043] W t Stator tooth width;

[0044] d, q: axes;

[0045] C1: Rotor shaft center;

[0046] W n : Width of the nth magnetic channel; W n-1 Width of the (n-1)th magnetic channel;

[0047] W1: Width of the first magnetic channel; W2: Width of the second magnetic channel; W3: Width of the third magnetic channel; W4: Width of the fourth magnetic channel; W5: Width of the fifth magnetic channel; W6: Width of the sixth magnetic channel;

[0048] ∑W: Total width of the magnetic conduction channels;

[0049] S10, S20: Steps;

[0050] S301, S401, S501, S601: Steps. Detailed Implementation

[0051] The following description, in conjunction with the accompanying drawings and component symbols, provides a more detailed account of the embodiments of the present invention, so that those skilled in the art can implement them after studying this specification.

[0052] Figure 1 This is a schematic diagram illustrating the rotor and stator structure of a synchronous reluctance motor in the prior art. Please refer to... Figure 1 In the structure of a synchronous reluctance motor, it 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 is the circumference of the stator 10 or can be referred to as the stator outer perimeter. Each stator slot 101 includes a stator slot bottom end 1011. The distance between the tangent line L1 of the center edge of the stator slot bottom end 1011 and the tangent line L2 of the stator outer edge 105 includes the width of the stator yoke (W). y ), stator yoke width (W) y The distance from the bottom edge of the stator slot 101 to the outer edge 105 of the stator is defined as the shortest distance. Each stator tooth 103 includes a stator tooth width (W). t Therefore, the structure of stator 10 includes the stator yoke width (W). y ) and stator tooth width (W t ).

[0053] Stator slots 101 are evenly spaced and arranged on the stator 10, and stator teeth 103 are also evenly spaced and arranged on the stator 10. The stator slots 101 and stator teeth 103 are staggered in the stator 10. The stator slots 101 are used to place electrical conductors (not shown in the figure) to facilitate the transfer of electrical energy and generate a magnetic field on the stator 10. The stator teeth 103 are used to transmit the magnetic field to the rotor 20.

[0054] Rotor 20 includes a plurality of motor poles 201, for example Figure 1 The diagram shows four motor poles 201. Each motor pole 201 includes a plurality of rotor barriers 203 and a plurality of magnetic channels 205, and the rotor barriers 203 and magnetic channels 205 are arranged alternately.

[0055] This invention addresses the sum of the widths (∑W) of a plurality of magnetically conductive channels 205 and the width of the stator yoke (W). y The ratio between ) is used to design and adjust the structure of the synchronous reluctance motor, so that it has the characteristics of low development cost, wide applicability, high output torque, low torque ripple and systematic design, which are explained in detail below.

[0056] Figure 2 This is a schematic diagram illustrating the structure of the rotor in a synchronous reluctance motor according to an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the sum of magnetic channel widths (∑W) / stator yoke width (W) of an embodiment of the present invention. y The relationship curve between the value of the torque and the torque value. Please refer to... Figures 1 to 3 In one embodiment of the present invention, the rotor includes four motor poles 201, each motor pole 201 including a plurality of rotor barriers 203 and a plurality of magnetic channels, the magnetic channels including a first magnetic channel to an nth magnetic channel, the first magnetic channel including a first magnetic channel width (W1), the nth magnetic channel including an nth magnetic channel width (W2). n (n is a positive integer greater than 1). Furthermore, the structure of each motor pole number 201 is identical, so once the structure of one motor pole number 201 is determined, the structure of four motor pole numbers 201 can be obtained. Moreover, although this invention is specifically for a four-pole rotor (i.e., a motor with four pole numbers 201), the number of motor pole numbers 201 can be adjusted to six, eight, or other numbers depending on actual needs.

[0057] For example, in Figure 2In the rotor 20 shown, a single motor pole number 201 includes six magnetic channels, i.e., n = 6, including 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. Due to the special structure of the rotor 20, the stator inductance of the synchronous reluctance motor changes with the rotation of the rotor 20. When the stator inductance is at its maximum, the connection extending outward from the rotor shaft center C1 to the outer edge of the rotor, through the center of the first magnetic channel 2051, is defined as shaft d, or direct shaft. The point where the direct shaft leads by an electrical angle of 90 degrees is defined as shaft q, or quadrature shaft. Figure 2 The magnetic channel set on the shaft d is defined as the first magnetic channel 2051, and the magnetic channels along the direction of the shaft q from the rotor shaft center C1 to the outer periphery of the rotor are defined in sequence as the second magnetic channel 2052, the third magnetic channel 2053, ... up to the (n-1)th magnetic channel and the nth magnetic channel, and both the shaft d and the shaft q are connected to the rotor shaft center C1.

[0058] Meanwhile, the first magnetic channel 2051 includes a first magnetic channel width (W1), the second magnetic channel 2052 includes a second magnetic channel width (W2), the third magnetic channel 2053 includes a third magnetic channel width (W3), and so on, with the fifth magnetic channel 2055 including a fifth magnetic channel width (W5). n-1 The sixth magnetic channel 2056 includes a sixth magnetic channel width (W6, i.e., W). n In each motor pole number 201, there is a total width of magnetic guide channels (∑W), and the formula for the total width of magnetic guide channels (∑W) is as follows: In other words, in this embodiment of a motor with 201 poles, the total width of the magnetic guide channels (∑W) is the width of the first magnetic guide channel (W1) / 2 to the width of the sixth magnetic guide channel (W). n The sum of the values ​​of ).

[0059] In this invention, the sum of the widths of the magnetic conductive channels (∑W) and the width of the stator yoke (W) are further combined. y The relationship is defined as: 0.7 ≤ ∑W / W y ≤1.3. From Figure 3 The sum of the magnetic channel widths shown (∑W) / stator yoke width (W) y The curve showing the relationship between the value of ∑W / W and the torque shows that when ∑W / W y When the value is between 0.7 and 1.3, a larger output torque can be obtained. Therefore, in the structure of rotor 20, the present invention can simplify the adjustment of the sum of the widths of the magnetic conductive channels (∑W) and the width of the stator yoke (W). yThe relationship between these parameters allows the synchronous reluctance motor to have a large output torque.

[0060] Please refer to the following: Figures 1 to 2 In other embodiments of the present invention, the width of the first magnetic channel (W1) and the width of the stator teeth (W2) can be further adjusted. t The relationship between them is: 0.85 ≤ W1 / W t With a torque ripple of ≤1.15, this structure allows the synchronous reluctance motor to achieve even lower torque ripple.

[0061] Furthermore, in one embodiment of the present invention, the width of the first magnetic channel (W1) to the width of the nth magnetic channel (W n The relationship is: W1≥W2≥…W n-1 ≥W n and the width of the first magnetic channel (W1) and the width of the nth magnetic channel (W n The relationship is: (W1-W) n The value should be ≤0.2(∑W / (n-0.5)) to allow the reluctance motor to achieve better operating performance. It should be understood that in other embodiments of the invention, the width of the first magnetic channel (W1) can be further adjusted to the width of the nth magnetic channel (W) according to actual needs. n The width relationship of the first magnetic channel (W1) can conform to other formulas, or the width of the nth magnetic channel (W2) can be further adjusted. n The width-size relationship of ) conforms to other relationships.

[0062] Figure 4 This is a schematic diagram illustrating the structure of a synchronous reluctance motor according to another embodiment of the present invention. Please refer to [further details]. Figure 4 ,exist Figure 4 The synchronous reluctance motor structure includes 24 stator slots 101 and a stator tooth width (W). t The width of the stator yoke is 5.1 mm and the diameter of the stator yoke is (W). y The diameter is 12mm. There are three rotor barriers 203, including a first magnetic channel 2051, a second magnetic channel 2052, and a third magnetic channel 2053. The width of the first magnetic channel (W1) is 4.95mm, the width of the second magnetic channel (W2) is 4.83mm, and the width of the third magnetic channel (W3) is 4.7mm. The width of the first magnetic channel (W1) is equal to the width of the stator teeth (W...). t 0.97 times that of ), and the sum of the widths of the magnetic conductive channels (∑W) and the width of the stator yoke (W) y The values ​​are equal, and (W1-W3)≈0.052(∑W / (3-0.5)). In this embodiment, the output torque is 6.36 Nm, and the torque ripple is 14.80%.

[0063] Figure 5 This is a schematic diagram illustrating the structure of a synchronous reluctance motor according to another embodiment of the present invention. Please refer to [further details]. Figure 5 ,exist Figure 5 The synchronous reluctance motor structure includes 36 stator slots 101 and a stator tooth width (W). t The width of the stator yoke is 4mm and the length of the stator yoke is (W). y The diameter is 15mm. There are four rotor barriers 203, including a first magnetic channel 2051, a second magnetic channel 2052, a third magnetic channel 2053, and a fourth magnetic channel 2054. The width of the first magnetic channel (W1) is 4mm, the width of the second magnetic channel (W2) is 3.9mm, the width of the third magnetic channel (W3) is 3.9mm, and the width of the fourth magnetic channel (W4) is 3.9mm. The width of the first magnetic channel (W1) is equal to the width of the stator teeth (W...). t The widths of the magnetic conductive channels are equal, and the sum of the widths (∑W) of the magnetic conductive channels is equal to the width of the stator yoke (W). y The torque is 0.91 times that of W1, and (W1-W4)≈0.026(∑W / (4-0.5)). In this embodiment, the output torque is 9.69 Nm and the torque ripple is 10.62%.

[0064] Figure 6 This is a schematic diagram illustrating the structure of a synchronous reluctance motor according to another embodiment of the present invention. Please refer to [further details]. Figure 6 ,exist Figure 6 The synchronous reluctance motor structure includes 48 stator slots 101 and a stator tooth width (W). t The width of the stator yoke is 5.4 mm and the length of the stator yoke is (W). y The diameter is 22.5 mm. There are six rotor barriers 203, 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. The widths of the first, second, third, fourth, fifth, and sixth magnetic channels (W1, W2, W3, W4, W5, and W6) are all 4.9 mm. The width of the first magnetic channel (W1) is equal to the width of the stator teeth (W...). t 0.91 times that of the stator yoke, and the sum of the widths of the magnetic channels (∑W) is equal to the width of the stator yoke (W). y The torque is 1.2 times that of W1, and (W1-W6) = 0. In this embodiment, the output torque is 82.03 Nm, and the torque ripple is 5.75%.

[0065] As can be seen from the above embodiments, the present invention can be applied to stator slot 101 structures with 24 slots, 36 slots or 48 slots, and through the structure specifically defined by the present invention, the power density and output torque of the motor can be improved while simultaneously achieving the technical effect of reducing torque ripple.

[0066] Figure 7 This is a flowchart illustrating a design method for a synchronous reluctance motor according to an embodiment of the present invention. Please refer to... Figures 1 to 3 and Figure 7 The design method of the synchronous reluctance motor of the present invention includes steps S10 and S20. Step S10 is: setting the geometric dimensions of the stator 10, the number of the plurality of stator slots 101, and the stator tooth width (W). t ) and a certain yoke width (W) y The stator 10 includes a stator outer edge 105, and each stator slot 101 includes a stator slot bottom end 1011. The width of the stator yoke (W) y Let L1 be the shortest distance between the tangent line L1 at the center edge of the stator slot bottom 1011 and the tangent line L2 at the outer edge of the stator outer edge 105. Step S20 is: set the total width (∑W) of a magnetic channel in a rotor 20 with a number of motor poles 201, wherein the total width (∑W) of the magnetic channel is equal to the width (W) of the stator yoke. y The relationship is: 0.7 ≤ ∑W / W y ≤1.3. Furthermore, the geometric dimensions of the stator 10 include the radius, slot shape, and other geometrical dimensions, while the number of motor poles 201 is four. Moreover, although this invention is specifically for a four-pole rotor (i.e., a motor with four poles 201), the number of motor poles 201 can be adjusted to six, eight, or other numbers depending on actual needs.

[0067] Figure 8 This is a flowchart illustrating the design method of a synchronous reluctance motor according to other embodiments of the present invention. Please refer to... Figures 1 to 3 and Figure 8 In other embodiments of the present invention, the design method of the synchronous reluctance motor may further include steps S301 and / or S401 and / or S501 and / or S601. Step S301 is: setting the number (n) of a plurality of rotor barriers 203 and a plurality of magnetic channels 205 in the number of motor poles 201 of the rotor 20. In one number of motor poles 201, the magnetic channels 205 include a first magnetic channel 2051 to an nth magnetic channel. The first magnetic channel 2051 includes a first magnetic channel width (W1), and the nth rotor magnetic channel includes an nth magnetic channel width (W). n ), where n is a positive integer greater than 1, and the formula for the total width of the magnetic conduction channels (∑W) is:

[0068] Step S401 is: setting the width of the first magnetic channel (W1), and matching the width of the first magnetic channel (W1) with the width of the stator teeth (W1). t The relationship is set as: 0.85 ≤ W1 / W t ≤1.15. Step S501 is: Set the width of the first magnetic channel (W1) to the width of the nth magnetic channel (W). n The relationship is: W1≥W2≥…W n-1 ≥W n Step S601 is: setting the width of the first magnetic channel (W1) and the width of the nth magnetic channel (W2). n The relationship is: (W1-W) n )≤0.2(∑W / (n-0.5)).

[0069] As can be seen from the above-described design method of the synchronous reluctance motor of the present invention, the present invention provides a systematic design method. Only by systematically adjusting some key parameters can a synchronous reluctance motor with high output torque and low torque ripple be designed. In this way, the currently very complicated design process can be simplified and systematized.

[0070] As can be seen from the above description of the present invention, the present invention provides a synchronous reluctance motor and its design method. The synchronous reluctance motor and design method of the present invention have the following effects and advantages: 1. The synchronous reluctance motor of the present invention has very high applicability. Only the structural relationship parameters of the rotor and stator need to be adjusted to design a reluctance motor structure suitable for different applications. Among them, by using a single pole configuration design (such as four poles) combined with the use of frequency converter, the number of high-efficiency motor models, development time and investment costs can be effectively reduced. 2. The high efficiency and high output torque output characteristics can effectively reduce the use of raw materials such as silicon steel sheets and copper wires, and more effectively use electrical energy. 3. The high output torque and low torque ripple output characteristics can be applied to high-value-added applications (such as machine tools, automated equipment and electric vehicles). 4. The present invention also proposes a systematic design process. By reducing design parameters, defining new design parameters and providing design upper and lower limits, a systematic design method is provided to realize a synchronous reluctance motor with high efficiency, high power density and low torque ripple.

[0071] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A synchronous reluctance motor characterized by, Comprising: A stator comprising a plurality of stator slots, each of the stator slots comprising a stator slot bottom end, a stator slot bottom end center edge tangent of the stator slot bottom end and a stator outer edge tangent of the stator outer edge comprising a stator yoke portion width (W y ) between the stator slot bottom end center edge tangent and the stator outer edge tangent; and a rotor comprising a plurality of motor pole numbers, each of the motor pole numbers comprising a plurality of rotor barriers and a plurality of magnetic flux guide channels, the magnetic flux guide channels comprising a first magnetic flux guide channel to an n-th magnetic flux guide channel, and the rotor barriers and the magnetic flux guide channels being alternately arranged, wherein the first flux guiding path comprises a first flux guiding path width (W1), the n-th flux guiding path comprises an n-th flux guiding path width (Wn), n is a positive integer greater than 1, n ), n is a positive integer greater than 1, wherein a total width of the magnetic flux conducting path (∑W) is included in each of the motor pole numbers, and the total width of the magnetic flux conducting path (∑W) is expressed by wherein the total width of the magnetic flux conducting path (∑W) and the stator yoke width (W y ) have a relationship of 0.7≤∑W / W y ≤1.

3.

2. The synchronous reluctance motor of claim 1, wherein, Each of the stator teeth includes a stator tooth width (W t ), the first magnetic flux conducting channel width (W1) and the stator tooth width (W t ) satisfy the relationship: 0.85 ≤ W1 / W t ≤ 1.

15.

3. The synchronous reluctance motor of claim 1, wherein, The relationship between the first magnetic flux guide channel width (W1) and the nth magnetic flux guide channel width (Wn) is: W1≥W2≥…Wn. n n-1 n .​​ 4. The synchronous reluctance motor of claim 1, wherein, The relationship between the first magnetic flux guide width (W1) and the nth magnetic flux guide width (Wn) is: (W1-Wn)≤0.2(∑W / (n-0.5)). n )≤0.2(∑W / (n-0.5)). n )≤0.2(∑W / (n-0.5)).

5. The synchronous reluctance motor of claim 1, wherein, the number of the stator slots being one of 24 slots, 36 slots, and 48 slots.

6. A method of designing a synchronous reluctance motor, characterized by comprising the steps of: Setting a geometry of a stator, a number of stator slots, a stator tooth width (W t ) and a stator yoke width (W y ), wherein the stator comprises a stator outer edge, each of the stator slots comprises a stator slot bottom end, a stator slot bottom end center edge tangent of the stator slot bottom end and a stator outer edge tangent of the stator outer edge comprises the stator yoke width (W y ); and A total width sum (∑W) of a magnetic conduction path in a number of poles of a motor of a rotor is set, wherein the total width sum (∑W) of the magnetic conduction path and the stator yoke width (W y ) have a relationship of 0.7≤∑W / W y ≤1.

3.

7. The design method of claim 6, wherein, further comprising the steps of: The number of rotor barriers and the number of magnetic flux guide channels in the number of motor poles of the rotor are set, wherein the magnetic flux guide channels include a first magnetic flux guide channel to an nth magnetic flux guide channel, the first magnetic flux guide channel includes a first magnetic flux guide channel width (W1), the nth magnetic flux guide channel includes an nth magnetic flux guide channel width (Wn), n is a positive integer greater than 1, and the sum of the magnetic flux guide channel widths (∑W) is n ​ 8. The design method of claim 7, wherein, further comprising the steps of: further comprising the steps of: The first magnetic flux guiding channel width (W1) is set, wherein the relationship between the first magnetic flux guiding channel width (W1) and the stator tooth width (W t ) is: 0.85≤W1 / W t ≤1.

15.

9. The design method of claim 7, wherein, Further comprising the step of setting the relationship of the first magnetic flux guide channel width (W1) to the nth magnetic flux guide channel width (Wn) as: W1≥W2≥…Wn. n ) of the magnetic flux guide channels. n-1 ≥W n n.

10. The design method of claim 7, wherein, Further comprising the step of setting the relationship between the first magnetic flux guide width (W1) and the nth magnetic flux guide width (Wn) as follows: (W1-Wn)≤0.2(∑W / (n-0.5)). n )≤0.2(∑W / (n-0.5)). n )≤0.2(∑W / (n-0.5)).

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