CN108199509A - A kind of fractional-slot concentratred winding permanent magnet synchronous motor and its design method for improving reluctance torque - Google Patents
A kind of fractional-slot concentratred winding permanent magnet synchronous motor and its design method for improving reluctance torque Download PDFInfo
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- CN108199509A CN108199509A CN201711442194.0A CN201711442194A CN108199509A CN 108199509 A CN108199509 A CN 108199509A CN 201711442194 A CN201711442194 A CN 201711442194A CN 108199509 A CN108199509 A CN 108199509A
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Abstract
The invention discloses a kind of fractional-slot concentratred winding permanent magnet synchronous motor and its design methods of raising reluctance torque, include stator and rotor；Stator is circumferentially slotted, and forms spaced fault-tolerant teeth and armature tooth；Armature winding is wound on armature tooth, and fault-tolerant teeth and the armature tooth facewidth are unequal, and the armature tooth facewidth is wider than fault-tolerant teeth；For rotor by permanent magnet, rotor core and magnetic barrier composition, permanent magnet is upper and lower two layers of permanent magnet, and rotor core is made of multiple separate units, and when model machine is processed, rotor is wrapped up by nonmetallic materials, forms a compact structure.Rotor core is split along permanent magnet axis extreme direction, and the top half width lower half point of magnetic barrier is narrower during segmentation.The advantages of the invention, is that this special magnetic barrier design can not only reduce d-axis inductance, but also can reduce the influence to quadrature axis inductance as possible, and have apparent inhibition to the subharmonic of motor.Therefore it can effectively improve the reluctance torque of motor and reduce motor iron loss and eddy-current loss.
Description
Technical field
The present invention relates to a kind of motor manufacturing technologies, and it is same to especially relate to a kind of raising fractional-slot concentratred winding permanent magnetism
Walk the technology of magnetic resistance of motor torque.
Background technology
Fractional-slot concentratred winding permanent magnet synchronous motor has that winding overhang is short, and copper loss is low, efficient, and it is all that fault freedom is good etc.
More features, therefore such as aerospace, Ship Propeling, industrial drives have preferable application scenario in many occasions.At present, divide
The maximum challenge that number slot concentratred winding permanent magnet synchronous motor faces is exactly the raising of reluctance torque.Traditional fractional-slot concentrate around
For the main component of group permanent magnet synchronous motor torque for permanent-magnet torque, it is relatively difficult that this allows for motor weak magnetic in high-speed cruising,
So as to limit the speed adjustable range of motor.And the promotion of reluctance torque helps to improve the overload capacity and power density of motor,
And it is easy to weak-magnetic speed-regulating, expand output-constant operation range.
Document IET Electric Power Applications, 9 (7):439-438.2015(Increasing the
Saliency Ratio of Fractional Slot Concentrated Winding Interior Permanent
Magnet Synchronous Motors) describe a kind of raising fractional-slot concentratred winding permanent magnet synchronous motor reluctance torque
Rotor structure method.Its rotor core is made of the silicon steel sheet and aluminium block two parts of ferromagnetic material.Ferromagnetic material is covered in
Rotor surface plays magnet accumulating cap；Internal rotor increases d-axis magnetic circuit reluctance using aluminium block.Since the conductivity of aluminium is much larger than
Silicon steel sheet, motor can generate very big eddy-current loss, and thus caused motor temperature rise is excessively high to generate serious shadow to motor
Ring or even burn motor.Although many to improving the research of permanent magnet synchronous motor reluctance torque at present, concentrated for fractional-slot
Winding but seldom, this is also in that the distribution of fractional-slot concentratred winding unique magnetic circuit.Compared to integer slot Distributed Winding, concentrate
The magnetic circuit of winding has non-equilibrium effect, therefore is difficult in the case where total torque is constant, effectively improves reluctance torque.Have
Some improve reluctance torques methods all other performances of motor can be had an impact in varying degrees.Therefore design can have
Effect improves the reluctance torque of fractional-slot concentratred winding permanent magnet synchronous motor and reduces the rotor structure of the loss of electric machine with important
Meaning and practical value.
Invention content
The purpose of the present invention is to solve fractional-slot concentratred winding permanent magnet synchronous motor reluctance torque it is low the problem of, propose
A kind of simple and effective, easy to carry out in engineering method.This method ensure that motor rotor construction mechanical strength, electromagnetic torque
Etc. performances while within safe range, effectively increase the reluctance torque of motor and reduce the loss of motor.
In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme that：Motor overall structure is by stator and rotor
Two parts form, and rotor core is made of a separate units of 2p (p be motor number of pole-pairs), the magnetic between each unit hinder width according to
It is required that rationally setting.
The motor includes two parts of stator and rotor, and the constituent material of stator and rotor is silicon steel sheet.Stator and rotor
Between there is air gap, the length of air gap is according to the actual size of motor and requires Rational choice.The stator is by iron core, winding structure
Into the rotor includes independent rotor core unit, permanent magnet and air groove.
Further, it circumferentially slots on the stator, large trough and sulculus are spaced, form two kinds of fault-tolerant teeth and armature tooth
Toothing, slot is interior to place Single-layer Windings, and winding connection is three-phase centralization winding and is around in armature teeth portion.
Further, the width of the armature tooth is wider than fault-tolerant teeth, is the big portion of motor because since winding is wound on armature tooth
The magnetic linkage divided will be formed into a loop by armature tooth and rotor core, so as to generate torque.Wider armature tooth is conducive to more
Magnetic linkage pass through, the magnetic field degree of saturation of motor can be alleviated to a certain extent.
Further, the invention uses the structure of Single-layer Windings, can be very good to realize alternate isolation, it is alternate short to reduce winding
The failure rate on road improves the reliability of motor.In addition, compared to Double Layer Winding, Single-layer Windings have better heat-blocking action, this
Advantageously reduce motor temperature rise.
The rotor is by independent rotor core, permanent magnet and air groove composition, and entire rotor core is by nonmetallic materials
Package forms a compact structure.
Further, the permanent magnet is using double-deck U-shaped structure, and is radially sequentially overlapped placement.Permanent magnet is using radially
It magnetizes, and two on same Direction of superposition piece permanent magnet magnetizing direction is consistent.Cored interval between every layer of permanent magnet, iron core
Width needs basis reasonably optimizing can be asked to set.
Further, magnetic barrier is also provided between the double-deck permanent magnet, these magnetic barrier can increase straight to a certain extent
The length of axis magnetic circuit so that the magnetic resistance of d-axis magnetic circuit increases, so as to play the role of reducing d-axis magnetic circuit reluctance.
Further, for the rotor core all using silicon steel material, which solves other materials can increase motor damage
The problem of consumption.Entire rotor core is made of 2p separate unit.According to fractional-slot concentratred winding permanent magnet synchronous motor magnetic circuit
By the magnetic linkage of each permanent magnet it is different in non-equilibrium effect, i.e. motor.In addition d-axis magnetic linkage is also distributed with integer slot
Winding is different, and most of d-axis magnetic linkage is not passed through the permanent magnet of magnetic resistance maximum by the iron core below permanent magnet, causes d-axis
Magnetic circuit reluctance becomes smaller, and reluctance torque reduces.
Further, the magnetic barrier between each independent core unit is set as up-narrow and down-wide form.According in motor
Magnetic resistance minimum principle, i.e., magnetic flux always along the path of magnetic resistance minimum be closed.When d-axis magnetic linkage is by the iron below permanent magnet
During core, when hindering by the wider magnetic of lower floor, magnetic flux path can be changed across the smaller upper strata magnetic barrier of magnetic resistance, so as to make d-axis inductance
It reduces.The upper strata magnetic hinders the relatively narrow of design, is to reduce the influence to quadrature axis magnetic linkage, quadrature axis magnetic linkage is made to have enough sections
Across rotor core, and with stator core linkage, forming circuit.So as to reduce the influence to total electromagnetic torque.The lower floor
Magnetic hinders, and increases the magnetic resistance of subharmonic magnetic circuit, plays the role of weakening and inhibition to motor subharmonic.And the reduction of subharmonic, it can
To effectively reduce the iron loss of motor and eddy-current loss, the efficiency of motor is improved.
Further, there are up-narrow and down-wide magnetic barriers, the magnetic barrier between the independent rotor core unit can be used as electricity
The heat dissipation channel of machine is conducive to the ventilation and heat of motor, alleviates the problem of motor temperature rise is excessively high.
The object that the present invention is implemented is fractional-slot concentratred winding permanent magnet synchronous motor.The program has the following advantages：
(1) present invention can effectively be realized alternate isolation, it is alternate short to be reduced motor using single-layered fractional slot concentratred winding
The risk on road；The use of fault-tolerant toothing can effectively reduce the degree of saturation of motor-field, improve the fault-tolerance of motor
Energy.
(2) rotor core of motor is divided into 2p separate unit by the invention, between each unit in setting
Narrow lower wide magnetic barrier.The setting hindered by magnetic can be effectively increased d-axis magnetic circuit reluctance, reduce d-axis inductance, and to quadrature axis magnetic circuit
It influences smaller.Therefore, reluctance torque can be effectively improved in the case where total electromagnetic torque is constant.
(3) present invention can effectively reduce d-axis inductance, improve the convex grey subset of motor.The raising of convex grey subset can make
Motor has better weak magnetic property, broader speed adjustable range.
(4) the magnetic barrier in the present invention between each independent rotor unit, effectively can weaken and inhibit subharmonic, reduce motor
Loss, improve the efficiency of motor.
(5) for the present invention using the structure of the radial stacking placement of double-deck permanent magnet, can not only play increases d-axis magnetic circuit magnetic
The effect of resistance can also reduce the eddy-current loss of permanent magnet, alleviate the Wen Sheng of motor, reduce the risk of permanent magnet high temperature demagnetization.
(6) setting of all magnetic barrier in the present invention, can play reduction motor as the ventilation and heat channel of motor
The effect of Wen Sheng.
To sum up：The permanent magnet synchronous motor of the present invention effectively reduces d-axis inductance, improves the reluctance torque and salient pole of motor
Rate makes motor have better weak magnetic property and broader speed adjustable range.In addition, the setting of magnetic barrier effectively weakens and reduces
Subharmonic so as to reduce the loss of motor, improves the efficiency of motor.Meanwhile magnetic barrier is also provided for the ventilation and heat of motor
Channel reduces the Wen Sheng of motor, reduces the risk of permanent magnet high temperature demagnetization.
Description of the drawings
Embodiment of the drawings below for the fractional-slot concentratred winding permanent magnet synchronous motor of the present invention, wherein：
Attached drawing 1 is type fractional-slot concentratred winding permanent magnetic synchronous motor structure schematic diagram.
Attached drawing 2 is type fractional-slot concentratred winding permanent magnet synchronous motor quadrature axis magnetic circuit schematic diagram.
Attached drawing 3 is type fractional-slot concentratred winding permanent magnet synchronous motor d-axis magnetic circuit schematic diagram.
Attached drawing 4 is that the axle inductance comparison of traditional fractional-slot concentratred winding permanent magnet synchronous motor and emerging permanent magnet synchronous motor is shown
It is intended to.
Attached drawing 5 is that traditional fractional-slot concentratred winding permanent magnet synchronous motor shows with the comparison of novel permanent magnetic synchronous motor load torque
It is intended to.
Attached drawing 6 is traditional fractional-slot concentratred winding permanent magnet synchronous motor and novel permanent magnetic synchronous motor permanent magnet eddy-current loss
With rotor iron loss contrast schematic diagram.
Specific embodiment
It please refers to Fig.1, the present invention is a kind of fractional-slot concentratred winding permanent magnet synchronous motor magnetic resistance of high reluctance torque ratio
The method for improving of torque mainly by increasing d-axis magnetic circuit reluctance, reduces d-axis inductance to reach purpose of design.Present invention knot
Structure includes stator 1, and rotor 2 has air gap between stator 1 and rotor 2, gas length is selected according to electric machine structure and actual requirement
It takes.
By taking 12 slot, 10 pole motor as an example, Fig. 1 is the structure diagram of novel fractional-slot concentratred winding permanent magnet synchronous motor.Institute
It states stator 1 and includes two kinds of structures of fault-tolerant teeth 1-1 and armature tooth 1-2.Armature winding 1-3 is wound on armature tooth 1-2.Armature tooth and appearance
The facewidth ratio of side set can reach optimum efficiency by optimization.Rotor 2 is by permanent magnet 2-1, rotor core 2-4 and magnetic barrier 2-2,2-
3 compositions.Permanent magnet 2-1 includes upper and lower two layers of permanent magnet, and rotor core 2-4 is made of 10 separate units, when model machine is processed, turns
Sub- iron core can be wrapped up by nonmetallic materials, form a compact structure.
Fig. 2 is novel fractional-slot concentratred winding permanent magnet synchronous motor quadrature axis magnetic circuit schematic diagram.It can be seen that rotor core
Magnetic barrier between each unit does not influence quadrature axis magnetic circuit, and quadrature axis magnetic circuit still interlinks by rotor core with stator core, shape
Into circuit, torque is generated.
Fig. 3 is novel fractional-slot concentratred winding permanent magnet synchronous motor d-axis magnetic circuit schematic diagram.It can be seen that due to turning
Sub- iron core is divided, and up-narrow and down-wide magnetic barrier is formd between rotor core each unit, these magnetic barrier increases d-axis magnetic
The magnetic resistance on road makes the reduction of d-axis inductance, so as to obtain higher reluctance torque.
Fig. 4 is that the comparison of novel fractional-slot concentratred winding permanent magnet synchronous motor and conventional permanent magnet motor d-axis inductance is illustrated
Figure.It can be seen from the figure that the d-axis inductance of new structure significantly declines much than conventional motors, down ratio reaches 48%,
The good results are evident.
Fig. 5 is tradition and novel permanent magnetic synchronous motor load torque schematic diagram.It can be seen from the figure that with conventional motors phase
Than the total torque of novel permanent magnetic synchronous motor is almost without reduction, but its reluctance torque has reached 2 times of conventional motors.Show
New structure has greatly improved compared to traditional structure in reluctance torque.Therefore, the magneto of new structure has more
Wide output-constant operation range and better weak-magnetic speed-regulating performance.
Fig. 6 is the contrast schematic diagram of tradition and novel permanent magnetic synchronous motor rotor eddy current loss and rotor iron loss.From figure
As can be seen that compared to conventional permanent magnet motor, the eddy-current loss of New-type electric machine reduces 70.9%, and rotor iron loss also reduces
45%.It can be seen that the present invention also effectively reduces the loss of motor, alleviates electricity while reluctance torque is effectively improved
The problem of temperature rise of machine.
The design method of the fractional-slot concentratred winding permanent magnet synchronous motor reluctance torque of the present invention includes the following steps：
Step 1：The slot number cooperation of fractional-slot concentratred winding is selected, it is excellent to carry out parameter to the width of armature tooth and fault-tolerant teeth
Change；
Step 2：Quadrature axis and d-axis performance to motor carry out independent emulation, according to formula(wherein, id, iqFor the direct-axis current and quadrature axis current of motor, θ is electricity
The electric current angle of machine) add quadrature axis current and direct-axis current respectively to motor, the distribution of quadrature axis and the d-axis magnetic line of force is then observed, according to
The distribution of the magnetic line of force sets magnetic to hinder on d-axis magnetic circuit, so as to increase direct axis reluctance, reduces d-axis inductance, improves the magnetic of motor
Resistive torque ratio；
Step 3：The rotor core of motor is split, along field axis, rotor core is divided into up-narrow and down-wide
Magnetic hinders, and to carry out parameter optimization to the width that magnetic hinders after segmentation, the influence that magnetic hinders to motor quadrature axis is preferably minimized；
Step 4：Permanent magnet is arranged to bilevel structure, and use radial magnetizing, on same Direction of superposition forever
Magnet magnetizing direction is identical.
To sum up, the design method of a kind of raising fractional-slot concentratred winding permanent magnet synchronous motor reluctance torque of the invention.It is fixed
Sub- iron core is circumferentially slotted, the structure that stator is interlocked using fault-tolerant teeth and armature tooth.It the advantage is that the facewidth specific volume of armature tooth
Side set is wide, can reduce the degree of saturation of magnetic circuit.Each stator slot places one layer of winding, and winding type of attachment uses three-phase score
Slot concentratred winding.Rotor uses embedded permanent magnet structure, and permanent magnet is radially sequentially overlapped and is put using double-deck U-shaped structure
It puts, there are gaps between every layer of permanent magnet.Permanent magnet uses radial magnetizing, and unidirectional permanent magnet magnetizing direction is consistent.
Rotor core is made of 10 separate units.Its feature is as follows：Rotor core is split along permanent magnet axis extreme direction, during segmentation
The top half width lower half point of magnetic barrier is narrower.The advantages of the invention, is that this special magnetic barrier design can both reduce
D-axis inductance, and the influence to quadrature axis inductance can be reduced as possible, and have apparent inhibition to the subharmonic of motor.It therefore can be with
The effective iron loss and eddy-current loss for improving the reluctance torque of motor and reduce motor.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment of the present invention or example.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner combine in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (7)
1. a kind of fractional-slot concentratred winding permanent magnet synchronous motor, which is characterized in that include stator (1) and rotor (2)；Stator (1)
There is air gap between rotor (2)；
Stator (1) is circumferentially slotted, and forms spaced fault-tolerant teeth (1-1) and armature tooth (1-2)；Armature winding (1-3) around
On armature tooth (1-2), fault-tolerant teeth (1-1) and armature tooth (1-2) facewidth are unequal, and the armature tooth facewidth is wider than fault-tolerant teeth；Rotor
(2) by permanent magnet (2-1), rotor core (2-3) and magnetic barrier a (2-2), magnetic barrier b (2-4) is formed, and permanent magnet (2-1) is upper and lower two
Layer permanent magnet, rotor core (2-3) are made of multiple separate units, and when model machine is processed, rotor (2) is wrapped up by nonmetallic materials,
A compact structure is formed, magnetic barrier a (2-2) is arranged between two separate units of rotor core (2-3)；Magnetic barrier b (2-4)
Air groove for permanent magnet both ends.
2. a kind of fractional-slot concentratred winding permanent magnet synchronous motor according to claim 1, it is characterised in that：The permanent magnet
(2-1) is radially sequentially overlapped placement using double-deck U-shaped structure, and permanent magnet uses radial magnetizing, and on same Direction of superposition
Two pieces of permanent magnet magnetizing directions it is consistent, cored interval between every layer of permanent magnet.
3. a kind of fractional-slot concentratred winding permanent magnet synchronous motor according to claim 1, it is characterised in that：Rotor core
(2-3) is made of 10 separate units.
4. a kind of fractional-slot concentratred winding permanent magnet synchronous motor according to claim 1, it is characterised in that：Armature winding across
Away from for 1 armature tooth, winding connection individual layer concentratred winding.
5. a kind of fractional-slot concentratred winding permanent magnet synchronous motor according to claim 1, it is characterised in that：The rotor iron
Core (2-3) is all using the silicon steel material of 0.2mm specifications, and rotor core (2-3) is made of 2p separate unit, and p is rotor
Number of pole-pairs.
6. a kind of fractional-slot concentratred winding permanent magnet synchronous motor according to claim 1, it is characterised in that：The magnetic hinders a
(2-2) is set as up-narrow and down-wide structure；When d-axis magnetic linkage passes through the iron core below permanent magnet (2-1), due to magnetic barrier a (2-
2) lower half portion is wider, and magnetic linkage can change magnetic flux path across the smaller top half magnetic barrier of magnetic resistance, so as to make d-axis inductance
It reduces；The magnetic hinders the relatively narrow of a (2-2) top half design, and quadrature axis magnetic linkage is made to have enough sections to pass through rotor core (2-
3), and with stator (1) linkage, forming circuit；The magnetic barrier b (2-4) is 4 layers.
7. a kind of design method for improving fractional-slot concentratred winding permanent magnet synchronous motor reluctance torque, it is characterised in that：Including with
Lower step：
Step 1：The slot number cooperation of fractional-slot concentratred winding is selected, parameter optimization is carried out to the width of armature tooth and fault-tolerant teeth；
Step 2：Quadrature axis and d-axis performance to motor carry out independent emulation, according to formulaWherein, id, iqFor the direct-axis current and quadrature axis current of motor, θ is motor
Electric current angle, add quadrature axis current and direct-axis current respectively to motor, the distribution of quadrature axis and the d-axis magnetic line of force then observed, according to magnetic
The distribution of the line of force sets magnetic to hinder on d-axis magnetic circuit；
Step 3：The rotor core of motor is split, along field axis, up-narrow and down-wide magnetic is divided into hinder rotor core,
Parameter optimization is carried out to the width that magnetic hinders after segmentation, the influence that magnetic hinders to motor quadrature axis is preferably minimized；
Step 4：Permanent magnet is arranged to bilevel structure, and use radial magnetizing, the permanent magnet on same Direction of superposition
Magnetizing direction is identical.
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|---|---|---|---|
| CN201711442194.0A CN108199509A (en) | 2017-12-27 | 2017-12-27 | A kind of fractional-slot concentratred winding permanent magnet synchronous motor and its design method for improving reluctance torque |
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|---|---|---|---|
| CN201711442194.0A CN108199509A (en) | 2017-12-27 | 2017-12-27 | A kind of fractional-slot concentratred winding permanent magnet synchronous motor and its design method for improving reluctance torque |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193987A (en) * | 2018-11-23 | 2019-01-11 | 黑龙江大学 | Anti- salient pole lacks Rare-earth PMSM Rotor Structure |
| CN110601399A (en) * | 2019-09-12 | 2019-12-20 | 广东上水能源科技有限公司 | Space permanent magnet motor |
| CN112271834A (en) * | 2020-10-14 | 2021-01-26 | 青岛万宝压缩机有限公司 | Permanent magnet motor and refrigeration compressor |
| CN112398253A (en) * | 2020-11-12 | 2021-02-23 | 国网江西省电力有限公司电力科学研究院 | Five-phase unequal tooth shoe double-harmonic permanent magnet synchronous motor and tooth shoe radian optimization method |
| CN112968549A (en) * | 2021-01-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
| WO2022083014A1 (en) * | 2020-10-19 | 2022-04-28 | 江苏大学 | Fractional slot concentrated winding permanent magnet motor-based duplex-winding low-harmonic design method |
| CN114649879A (en) * | 2022-03-24 | 2022-06-21 | 江苏大学 | Variable magnetic flux permanent magnet fault-tolerant motor and design method |
| GB2611295A (en) * | 2020-10-19 | 2023-04-05 | Univ Jiangsu | Fractional slot concentrated winding permanent magnet motor-based duplex-winding low-harmonic design method |
| WO2023123534A1 (en) * | 2021-12-31 | 2023-07-06 | 江苏大学 | Variable-saliency-ratio permanent magnet motor and design method therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204696888U (en) * | 2015-03-04 | 2015-10-07 | 江苏王牌电机制造有限公司 | Automobile-used wide range speed control d-axis magnetic-field-enhanced permanent-magnetic brushless electric machine |
| CN106329774A (en) * | 2016-09-14 | 2017-01-11 | 南京航空航天大学 | Multilayer segmented built-in permanent magnet synchronous motor used for electric automobile driving |
| CN106877607A (en) * | 2017-04-11 | 2017-06-20 | 东南大学 | Using the winding divergence type bearingless synchronous reluctance motor of Halbach permanent magnet arrays |
-
2017
- 2017-12-27 CN CN201711442194.0A patent/CN108199509A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204696888U (en) * | 2015-03-04 | 2015-10-07 | 江苏王牌电机制造有限公司 | Automobile-used wide range speed control d-axis magnetic-field-enhanced permanent-magnetic brushless electric machine |
| CN106329774A (en) * | 2016-09-14 | 2017-01-11 | 南京航空航天大学 | Multilayer segmented built-in permanent magnet synchronous motor used for electric automobile driving |
| CN106877607A (en) * | 2017-04-11 | 2017-06-20 | 东南大学 | Using the winding divergence type bearingless synchronous reluctance motor of Halbach permanent magnet arrays |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193987A (en) * | 2018-11-23 | 2019-01-11 | 黑龙江大学 | Anti- salient pole lacks Rare-earth PMSM Rotor Structure |
| CN110601399A (en) * | 2019-09-12 | 2019-12-20 | 广东上水能源科技有限公司 | Space permanent magnet motor |
| CN112271834A (en) * | 2020-10-14 | 2021-01-26 | 青岛万宝压缩机有限公司 | Permanent magnet motor and refrigeration compressor |
| WO2022083014A1 (en) * | 2020-10-19 | 2022-04-28 | 江苏大学 | Fractional slot concentrated winding permanent magnet motor-based duplex-winding low-harmonic design method |
| GB2611295A (en) * | 2020-10-19 | 2023-04-05 | Univ Jiangsu | Fractional slot concentrated winding permanent magnet motor-based duplex-winding low-harmonic design method |
| CN112398253A (en) * | 2020-11-12 | 2021-02-23 | 国网江西省电力有限公司电力科学研究院 | Five-phase unequal tooth shoe double-harmonic permanent magnet synchronous motor and tooth shoe radian optimization method |
| CN112398253B (en) * | 2020-11-12 | 2022-07-12 | 国网江西省电力有限公司电力科学研究院 | Five-phase unequal tooth shoe double-harmonic permanent magnet synchronous motor and tooth shoe radian optimization method |
| CN112968549A (en) * | 2021-01-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
| WO2023123534A1 (en) * | 2021-12-31 | 2023-07-06 | 江苏大学 | Variable-saliency-ratio permanent magnet motor and design method therefor |
| CN114649879A (en) * | 2022-03-24 | 2022-06-21 | 江苏大学 | Variable magnetic flux permanent magnet fault-tolerant motor and design method |
| CN114649879B (en) * | 2022-03-24 | 2023-08-22 | 江苏大学 | Variable magnetic flux permanent magnet fault-tolerant motor and design method |
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Application publication date: 20180622 |