WO2017173790A1 - 电动车、车轮及其开关磁阻电机 - Google Patents

电动车、车轮及其开关磁阻电机 Download PDF

Info

Publication number
WO2017173790A1
WO2017173790A1 PCT/CN2016/100677 CN2016100677W WO2017173790A1 WO 2017173790 A1 WO2017173790 A1 WO 2017173790A1 CN 2016100677 W CN2016100677 W CN 2016100677W WO 2017173790 A1 WO2017173790 A1 WO 2017173790A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
filler
switched reluctance
reluctance motor
slot
Prior art date
Application number
PCT/CN2016/100677
Other languages
English (en)
French (fr)
Inventor
漆亚梅
童恩东
Original Assignee
深圳市配天电机技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市配天电机技术有限公司 filed Critical 深圳市配天电机技术有限公司
Publication of WO2017173790A1 publication Critical patent/WO2017173790A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • 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
    • H02K1/14—Stator cores with salient poles
    • 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
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • 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
    • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
    • 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
    • H02K1/26—Rotor cores with slots for windings
    • H02K1/265—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/08—Reluctance motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the invention relates to the technical field of electric machines, and relates to an electric vehicle, a wheel and a switched reluctance motor thereof.
  • the axial magnetic field motor has a complicated structure, high production cost, and low practical application value.
  • the switched reluctance motor of the prior art is generally formed in the form of an inner rotor motor, and the outer rotor hub motor is not used.
  • the low-speed smoothness, noise, and power density of a switched reluctance motor used as an inner rotor are still not as good as those of a permanent magnet synchronous motor.
  • Permanent magnet synchronous motor has the disadvantages of easy demagnetization, low speed operation, short life and poor maintainability.
  • the present invention provides a novel switched reluctance motor structure, and an electric vehicle and a wheel using the same. .
  • an embodiment of the present invention provides a switched reluctance motor including a housing and a rotor and a stator disposed in the housing, the rotor including a plurality of rotor teeth disposed circumferentially And a rotor slot between the rotor teeth, wherein the slot of the rotor slot is provided with a cover or a filler is provided inside the rotor slot to reduce the air resistance of the rotor.
  • the filler or the covering is an insulating magnetically insulating material.
  • the cover covers the slot of the rotor slot or the filling Filling fills the rotor slots.
  • a side surface of the filler is provided with a positioning protrusion, and the positioning protrusion cooperates with a positioning groove on a side surface of the rotor to realize a filler.
  • the card is positioned.
  • one of the two tooth tips of each rotor tooth is an obtuse angle and the other one is a right angle or an acute angle.
  • the filler when the filler is filled in the rotor slot, the filler is smoothly connected with a tooth tip which is an acute angle or a right angle; between the filler and the tip of the obtuse angle Connected by a curved transition.
  • the filler or the covering is plastic, fiberglass or composite.
  • the present invention further provides a wheel, the wheel is driven by a switched reluctance motor, and the switched reluctance motor adopts the structure of the switched reluctance motor according to any one of the above embodiments.
  • the present invention further provides an electric vehicle, which is a pure electric or hybrid vehicle, and the electric vehicle includes the switched reluctance motor according to any one of the above embodiments.
  • the wheel of the electric vehicle is driven by a hub-type switched reluctance motor.
  • the switched reluctance motor has low rotor resistance, high output power efficiency, large output torque of the motor, good environmental adaptability, high reliability, long service life, simple production process and low cost. Can be widely used in electric vehicles.
  • Figure 1 is a block diagram of the structural composition of the variable speed system of the switched reluctance motor
  • FIG. 2 is a schematic diagram of a switched reluctance motor of an outer rotor structure and a three-phase winding thereof;
  • Figure 3 is an enlarged plan view showing a partial structure of the switched reluctance motor of Figure 2;
  • FIG. 4 is a schematic view showing a magnetic field distribution of a stator winding
  • Figure 5 is a magnetic field distribution diagram of a single winding in the prior art turn-on method
  • Figure 6 is a graph of stator and rotor relative position and phase winding inductance
  • Figure 7 is an enlarged view of a first preferred embodiment of a rotor tooth structure
  • Figure 8 is an enlarged view of a second preferred embodiment of the rotor tooth structure
  • Figure 9 is an enlarged view of a third preferred embodiment of the rotor tooth structure
  • Figure 10 is an enlarged view of a fourth preferred embodiment of the rotor tooth structure
  • Figure 11 is a graph showing changes in inductance with angle of rotation in the prior art
  • Figure 12 is a graph showing the inductance of the switched reluctance motor tip structure of the present invention as a function of the angle of rotation;
  • Figure 13 is a schematic view of the filler covering the slot of the rotor slot
  • Figure 14 is a schematic view showing the structure of the filler filled in the rotor groove
  • Figure 15 is a block diagram showing the composition of a switched reluctance motor control system
  • 16 is a schematic circuit diagram of a working state selection module
  • Figure 17 is a schematic diagram of a switched reluctance motor of an inner rotor structure and a three-phase winding thereof;
  • Figure 18 is an enlarged plan view showing a partial structure of the switched reluctance motor of Figure 17;
  • Figure 19 is a schematic illustration of a preferred inner rotor structure.
  • FIG. 1 A block diagram of a speed control system of a switched reluctance motor is shown in FIG. 1.
  • the speed control system generally includes a switched reluctance motor 100, a power converter 200, a controller 300, and a position sensor 400. Regarding the control process between the various constituent units of the speed control system, it will not be described in detail herein within the understanding of those skilled in the art.
  • the embodiment of the invention provides a switched reluctance motor, which is a three-phase switched reluctance motor, comprising a housing and a salient rotor and a salient pole stator disposed in the housing, and the teeth of the stator are wound with ABC III Phase winding.
  • a switched reluctance motor which is a three-phase switched reluctance motor, comprising a housing and a salient rotor and a salient pole stator disposed in the housing, and the teeth of the stator are wound with ABC III Phase winding.
  • each of the ABC three-phase windings includes at least three terminals, including two end terminals, located at both ends of the winding, and further comprising at least one middle lead end, the middle lead end being located in the middle of the winding a certain position, such that when a certain terminal of the middle and one end of the terminal are connected to the circuit, then each phase winding is only partially energized, and when the two end terminals are connected to the circuit, each All of the phase windings are energized to achieve adjustment of the operating state.
  • each phase of the ABC three-phase winding is a three-phase winding with a midpoint, and the middle lead is connected to the midpoint of the winding, and the windings can all be connected to the circuit for operation, corresponding to the normal working state of the motor. It can also work with half of its access circuit, corresponding to the motor auxiliary working state.
  • the ABC three-phase winding can be arranged to include a plurality of central terminals so that the operating state of the motor can be adjusted in a variety of gear positions.
  • the switched reluctance motor in this embodiment may be an outer rotor inner stator motor, wherein, as shown in FIG. 2, the stator includes a plurality of stator teeth circumferentially spaced apart from each other and a stator slot between the stator teeth;
  • the sub-comprising includes a plurality of rotor teeth disposed circumferentially and a rotor slot located between the rotor teeth.
  • the rotor 410 may be a 16-pole outer rotor and the stator 420 is a 24-slot inner stator.
  • the stator motor of the 16-pole outer rotor 24 can be wound in the order of ABCABC..., a total of 24 winding components, and each of the three-phase windings has 8 winding components in series, and the winding components are used.
  • a plurality of insulated copper wires are wound together, and the plurality of insulated copper wires are divided into two halves, so that the eight series-connected winding components form two winding portions, and there are two wire ends and two wire ends, one of which is The first end of the line and the end of the line are used as the end of the phase winding, and then the other end of the line is connected with the end of the line, as the midpoint of the phase winding, so the ABC three-phase winding It is a three-phase winding with a midpoint terminal.
  • each of the three-phase windings may also be provided with a plurality of central terminals, and the lead-out position is not limited to the midpoint of the winding, which is within the understanding of those skilled in the art. No longer.
  • FIG. 3 is an enlarged partial view showing the structure of the switched reluctance motor of FIG.
  • the ratio of the groove bottom width L10 of the stator to the width L8 of the stator teeth is 1 to 1.25, and the groove depth D1 is 2 to 4 times the tooth width L8.
  • This design ensures high material utilization and low vibration and noise. This is because the switched reluctance motor does not use permanent magnets, only the iron core and the copper wire are used. When the amount of copper used is equivalent to the amount of iron used, the material utilization rate of the motor is the highest.
  • the ratio of the groove bottom width of the stator of the switched reluctance motor to the stator tooth width is 1, it can be considered that the amount of copper used is equivalent to the amount of iron used, and the ratio of the width of the groove bottom to the width of the stator teeth is greater than 1, so that more can be placed. Copper wire.
  • the ratio of the width of the groove bottom to the width of the stator teeth is too large, when the groove depth is 2 to 4 times the tooth width, it means that the width of the stator teeth is too narrow.
  • the stator and the rotor are strongly magnetic. Under the action of tension, vibration and noise are easily generated.
  • the range of the groove depth, the width ratio of the teeth and the groove of the stator of the invention effectively ensures the high material utilization rate of the motor, that is, increases the power density of the motor, and suppresses vibration and noise.
  • the notch width L7 of the outer rotor and the width L6 of the rotor teeth satisfy: L7/L6 is 1 to 0.75, and the groove depth D2 is 20 to 30 times the air gap ⁇ between the rotor 410 and the stator 420.
  • the structural design of the rotor is matched with the ratio of the groove bottom width L10 of the stator to the width L8 of the stator teeth of 1 to 1.25, and the groove depth D1 is 2 to 4 times the tooth width L8, resulting in the switched reluctance motor of the present invention.
  • the ratio of the maximum inductance Lmax to the minimum inductance Lmin Lmax/Lmin is much larger than that of the conventional switched reluctance motor.
  • the inductance ratio of the present invention can be as high as 6-8, while the conventional switched reluctance motor can only reach 2.5 ⁇ 4.5. . Due to the output torque of the switched reluctance motor Inductance ratio means high Large, the output torque of the motor is large, that is, the power density of the motor is doubled.
  • FIG. 4 is a schematic diagram of the magnetic field distribution of the stator windings, compared with the conventional windings.
  • the magnetic field directions of the windings on the adjacent stator teeth are the same, so that each winding separately forms a small magnetic field.
  • FIG. 5 is a magnetic field distribution diagram of a single winding in the prior art turning-on method;
  • the currents of the windings of the adjacent stator teeth are opposite in direction, so that the magnetic fields generated by the adjacent windings are opposite in direction;
  • the closing method can form a magnetic field together between adjacent stator windings, and the structure can increase the magnetic field density and make the magnetic field
  • the resistance torque becomes large, which in turn increases the power density of the motor.
  • the winding mode of the winding is applicable not only to the 16-pole 24-slot motor structure in this embodiment, but also to the rotor with the rotor (8 ⁇ n) pole and the stator (12 ⁇ n) slot stator (where n A motor structure that is a positive integer greater than or equal to 2.
  • the curve of the inductance of the conventional motor as a function of the rotation angle is as shown in Fig. 6.
  • the interval is No torque is generated.
  • both sides of each rotor tooth of the rotor of the present invention are designed to have an asymmetrical structure, for example, the angles of the two tooth tips of the rotor teeth are designed to be different angles and the like. Then the curve of the inductance of the motor changes with the angle of rotation The interval becomes smaller and even disappears. At least one of the two tooth tips of the rotor tooth can be designed as an obtuse angle.
  • FIG. 7 is an enlarged view of a first preferred embodiment of the rotor tooth structure.
  • One of the two tooth tips 4101 of the rotor tooth in the embodiment is designed to be obtuse, and the other The tip 4102 is designed to be an acute or right angle.
  • the depth D3 of the obtuse angle of the rotor tooth tip may be 1 to 2 times of the air gap ⁇
  • the width D4 of the obtuse angle of the rotor tooth tip may be 1/10 to 1/5 of the width L6 of the rotor tooth, if the motor is in the direction of the obtuse angle Grounding the three-phase windings can greatly reduce the noise of the motor.
  • the two tooth tips of the rotor teeth can also be designed as obtuse angles, all designed to be acute angles or a combination of acute angles and right angles, as long as the two sides of the rotor teeth are asymmetric.
  • FIG. 8 is an enlarged view of a second preferred embodiment of the rotor tooth structure
  • FIG. 9 is an enlarged view of a third preferred embodiment of the rotor tooth structure
  • FIG. 10 is a fourth preferred embodiment of the rotor tooth structure.
  • the tooth tips on both sides of the rotor tooth are a circular arc structure 4101, the other is a chamfered structure 4102, and the chamfered position forms two obtuse angles; in the embodiment of Fig. 9, the rotor teeth are One of the two tooth tips is an acute angle or right angle structure 4101, and the other is a protruding sharp corner structure 4102.
  • the tooth tips on both sides of the rotor tooth are an acute angle or a right angle structure 4101, and the other tooth tip is provided near the tooth tip.
  • the structure 4102 of the groove is provided near the tooth tip.
  • FIG. 11 is a graph of inductance variation with rotation angle in the prior art
  • FIG. 12 is a graph of inductance variation with rotation angle of the tip structure of the switched reluctance motor of the present invention.
  • Tip design the curve of its inductance as a function of rotation angle The interval becomes smaller (the number X in the figure is the position), and even disappears, that is, the interval where the torque is not generated is small or even disappears, which greatly improves the magnetic flux utilization rate of the motor, thereby increasing the output torque of the motor. .
  • the slot of the rotor slot or the inside of the rotor slot may also be provided with a filler to reduce the wind resistance of the rotor.
  • the filler (cover) needs to be an insulating magnetic material such as plastic, fiberglass or composite material or the like.
  • FIG. 13 and FIG. 14 are schematic diagrams showing two kinds of filler installation structures, wherein FIG. 13 is a schematic view of the cover covering the slot of the rotor slot, and FIG. 14 is a filler filled in Schematic diagram of the structure inside the rotor slot.
  • the cover 500 of FIG. 13 may be a strip structure affixed to the slot of the rotor slot 430.
  • the cover 500 may be a full strip covering all of the rotor slots 430 of the rotor, and may also cover a portion of the rotor slot 430 for the segmented structure. It is within the understanding of those skilled in the art and will not be described in detail herein.
  • the filler 500 in FIG. 14 is a wedge that is filled in the rotor slot 430, preferably a flattened rotor slot 430.
  • the filler 500 is smoothly transitioned between the acute or angular tooth tip structure rotor teeth (at the position indicated by 510 in FIG. 14); and the filler 500 and the obtuse angle tip structure
  • the rotor teeth are connected by a curved surface (at the position indicated by 520 in Fig. 14).
  • the filling of the filler 500 and the rotor teeth on both sides through a smooth transition structure can ensure that the overall outer side of the rotor has a smooth structure, thereby achieving the purpose of minimizing wind resistance.
  • a positioning groove (not shown) may be disposed on the side of the rotor tooth, and correspondingly, the side of the filler 500 is provided and positioned.
  • the positioning protrusion 530 is matched with the groove structure, and the positioning protrusion 530 cooperates with the positioning groove to realize the positioning of the filler 500, thereby ensuring that the filler 500 is reliably embedded in the corresponding rotor groove.
  • the positioning protrusion 530 of the arc structure is illustrated in FIG. 14 .
  • it can also be a dovetail structure or the like, as long as the filling 500 can be stably embedded or snapped into the rotor slot. An enumeration.
  • the present invention further provides a control system for a switched reluctance motor, see FIG. 15, which is a block diagram of a switch reluctance motor control system; the system includes a switched reluctance motor 510 and a driver 520, wherein the switched reluctance motor 510 may be the switched reluctance motor described in the previous embodiments.
  • the driver 520 includes at least an operating state selection module 521 for selecting all windings between the two end terminals of the three-phase winding or between the end of the end and the midpoint of the midpoint. The portion between the terminals works to allow the switched reluctance motor to achieve different torque outputs.
  • the working state selection module 521 includes at least three first switches, three second switches, three third switches, three first freewheeling diodes, three second freewheeling diodes, and three third freewheeling diodes.
  • the collectors of the three first switches are connected to the anode of the power source, and the emitters are respectively connected to one end of the corresponding one-phase winding, and the collectors of the three second switches are respectively connected to the other end of the corresponding one-phase winding.
  • the emitter is connected to the negative pole of the power supply, and the collectors of the three third switches are respectively connected to the midpoint terminals of the corresponding one-phase winding, the emitter is connected to the negative pole of the power supply, and the negative poles of the three first freewheeling diodes are respectively connected.
  • the collector of the first switch connected to the one-phase winding is connected to the collector of the second switch connected to the corresponding one-phase winding, and the negative poles of the three second free-wheeling diodes are respectively connected to the corresponding one-phase winding
  • the emitter of the first switch is connected to the corresponding one of the phase windings
  • the emitter of the second switch, the cathodes of the three three freewheeling diodes are respectively connected to the collectors of the first switches connected to the corresponding one-phase windings, and the positive poles are respectively connected to the collectors of the third switches to which the corresponding one-phase windings are connected.
  • the working state selection module 521 may include three auxiliary power switches V7, V8, V9 and three auxiliary freewheeling diodes VD7, VD8, and VD9, and assist the power switch when participating in the work.
  • Working state when the auxiliary power switch stops working, it is in normal working condition.
  • V1, V2, and V3 are the upper arm power switches of the A, B, and C three-phase windings, respectively.
  • the collector is connected to the positive pole of the power source Us; the emitter is connected to the input terminals of the three-phase windings of A, B, and C, respectively, and is respectively connected to the negative poles of the freewheeling diodes VD4, VD5, and VD6, and then the freewheeling diodes VD4, VD5, and VD6 are respectively connected.
  • the positive pole is connected to the negative pole of the power source Us.
  • the output terminals of the A, B, and C three-phase windings are respectively connected to the collectors of the bridge power switches V4, V5, and V6, and are respectively connected to the positive electrodes of the freewheeling diodes VD1, VD2, and VD3, and then the freewheeling diodes VD1 and VD2 are respectively connected.
  • the negative pole of VD3 is connected to the positive pole of the power source Us.
  • the emitters of the power switches V4, V5, and V6 are connected to the negative pole (power ground) of the power source Us.
  • the power drive circuit of the three-phase switched reluctance motor is constructed in this way; the midpoint terminals of the three-phase windings of A, B, and C are respectively connected to the collectors of the auxiliary power switches V7, V8, and V9, and respectively, and the auxiliary freewheeling diode VD7
  • the anodes of VD8 and VD9 are connected, and then the cathodes of the auxiliary freewheeling diodes VD7, VD8, and VD9 are connected to the anode of the power source Us.
  • the auxiliary power switch V7, V8, V9 is turned off and stopped, and the V1 ⁇ V6 power switch of the three-phase switched reluctance motor drive controller works normally, so that the three-phase switched reluctance motor can be made A, B, C three-phase windings are all put into operation; in the auxiliary working state, let the three-phase switch reluctance motor drive controller drive the V1 ⁇ V3 and V7 ⁇ V9 auxiliary power switches to work normally, and the power switches V4, V5, V6 turn off and stop working, The 1/2 turns of the A, B, and C three-phase windings of the three-phase switched reluctance motor are put into operation.
  • the driving controller 520 of the three-phase switched reluctance motor of the embodiment can use the position sensor of the switched reluctance motor to obtain the rate of change of the three-phase winding inductance with the position angle when the motor obtains the input speed. In the area, the power switch of the corresponding three-phase winding is switched to realize the operation of the generator.
  • the driving controller 520 can control the switched reluctance motor to operate in a normal working state and an auxiliary working state according to the rotating speed; in the normal working state, the auxiliary power switch V7, V8, V9 is turned off and stops working, and the three-phase switched reluctance motor
  • the V1 ⁇ V6 power switch of the drive controller works normally, and all the three-phase windings of the three-phase switched reluctance motor can be put into operation; in the auxiliary working state, the drive controller of the three-phase switched reluctance motor
  • the auxiliary power switches of V1 ⁇ V3 and V7 ⁇ V9 work normally, while the power switches V4, V5 and V6 are turned off and stop, so that the 1/2 turns windings of the three-phase windings of the three-phase switched reluctance motor are A, B and C.
  • the outstanding advantage of the three-phase switched reluctance motor as the generator in this embodiment is that there is no positioning torque generated by the cogging effect; plus the low-speed generator operation and the high-speed generator operation mode, high-efficiency power generation
  • the area is very wide.
  • the switched reluctance motor structure in the embodiment of the invention effectively improves the power density of the switched reluctance motor, reduces the torque ripple and noise of the switched reluctance motor, and has a particularly wide and high efficiency working area.
  • the switched reluctance motor has no positioning torque due to the cogging effect.
  • the area for high-efficiency power generation is very wide.
  • FIG. 17 is a schematic diagram of a switched reluctance motor with an inner rotor structure and three-phase windings thereof.
  • the switched reluctance motor in this embodiment is a 16-pole inner rotor having 16 rotor teeth and has 24 fixed 24 slot outer stator motor with sub-slot.
  • Reference numeral 210 is a stator and 220 is a rotor.
  • the 16-pole inner rotor 24 slot outer stator motor can be wound in the order of ABCABC..., a total of 24 winding components, three phase windings each having 8 series winding components, and the winding components are multiple
  • the insulated copper wire is wound together, and the plurality of insulated copper wires are divided into two halves, so that the eight series-connected winding components form two winding portions, and there are two wire ends and two wire ends, one of which is a pair of wires.
  • each of the three-phase windings may also be provided with a plurality of central terminals, and the lead-out position is not limited to the midpoint of the winding, which is within the understanding of those skilled in the art. No longer.
  • FIG. 18 is an enlarged partial view showing the structure of the switched reluctance motor of FIG. 17.
  • the ratio of the notch width L2 of the stator to the width L1 of the stator teeth is 1 to 1.25, and the groove depth D5 is 2 to 4 times the tooth width L1.
  • This design ensures high material utilization and low vibration and noise. This is because the switched reluctance motor does not use permanent magnets, only the iron core and the copper wire are used. When the amount of copper used is equivalent to the amount of iron used, the material utilization rate of the motor is the highest.
  • the ratio of the notch width of the stator of the switched reluctance motor to the width of the stator teeth is 1, it can be considered that the amount of copper used is equivalent to the amount of iron used, and the ratio of the width of the notch to the width of the stator teeth is greater than 1, so that more can be placed. Copper wire.
  • the ratio of the width of the notch to the width of the stator teeth is too large, when the groove depth is 2 to 4 times the tooth width, it means that the width of the stator teeth is too narrow.
  • the stator and the rotor are strongly magnetic. Under the action of tension, vibration and noise are easily generated.
  • the range of the groove depth, the width ratio of the teeth and the groove of the stator of the invention effectively ensures the high material utilization rate of the motor, that is, increases the power density of the motor, and suppresses vibration and noise.
  • the notch width L5 of the outer rotor and the width L4 of the rotor teeth satisfy: L5/L4 is 1 to 0.75, and the groove depth D6 is 20 to 30 times the air gap ⁇ between the rotor 220 and the stator 210.
  • the design of the rotor is such that the ratio of the slot width L5 of the stator to the width L4 of the stator teeth is 1 to 1.25, and the groove depth D5 is designed to be 2 to 4 times the tooth width L1, resulting in the switched reluctance motor of the present invention.
  • the ratio of the maximum inductance Lmax to the minimum inductance Lmin Lmax/Lmin is much larger than that of the conventional switched reluctance motor.
  • the inductance ratio of the present invention can be as high as 6-8, while the conventional switched reluctance motor can only reach 2.5 ⁇ 4.5. . Due to the output torque of the switched reluctance motor Inductance ratio means high Large, the output torque of the motor is large, that is, the power density of the motor is doubled.
  • the windings on the adjacent stator teeth of the stator in this embodiment also adopt a current control mode in which the magnetic field direction is opposite.
  • the specific magnetic field form and principle should be described in the relevant description in the above embodiment. No longer.
  • FIG. 19 is a schematic diagram of a preferred inner rotor structure.
  • the tooth tips on both sides of the rotor teeth in the embodiment can also be designed as structures having different angles.
  • the structural features of the rotor tooth tips Please refer to the related description in the above embodiment, and details are not described herein again.
  • a filler (reference numeral 600 in the figure) can also be provided in the rotor groove to reduce the wind resistance of the rotor. Although only one place is provided with the filler 600, it should be provided in all the rotor slots. 600.
  • the filler 600 please refer to the related description in the above embodiments, and the description thereof will not be repeated here.
  • the switched reluctance motor in this embodiment includes a salient pole rotor, a salient pole stator, a drive controller, and the like, wherein the rotor has 16 poles and the stator has 24 slots.
  • the ratio of the notch width of the stator to the width of the stator teeth is 1/0.8, and the groove depth is 3 times the tooth width.
  • the ratio of the slot width angle of the 16-pole rotor to the width of the rotor teeth is 0.8, and the groove depth is 25 times the air gap ⁇ .
  • This design of the rotor allows the inductance ratio to be as high as 7, while the conventional switched reluctance motor can only reach 2.5 to 4.5. Due to the output torque of the switched reluctance motor Inductance ratio means high Large, the output torque of the motor is large, that is, the power density of the motor is doubled.
  • one of the two tooth tips of each rotor tooth of the rotor is designed to be obtuse and the other is an acute angle. Then the curve of the inductance of the motor changes with the angle of rotation The interval becomes smaller and even disappears. If the motor energizes the three-phase windings in the direction of the obtuse angle, the noise of the motor can be greatly reduced.
  • the depth of the obtuse angle of the rotor tooth tip is 0.3 mm
  • the width of the obtuse angle is 1/6 of the width of the rotor tooth.
  • the teeth of the stator are wound with ABC three-phase windings, and the ABC three-phase windings are three-phase windings with a midpoint.
  • the three-phase windings are distributed in the order of ABCABCABCABCABCABCABC-ABC-24 winding components, and the three-phase windings each have 8 winding components in series; the winding components are wound with multiple insulated copper wires, and the plurality of insulated copper wires are divided into two halves.
  • the eight series-connected winding elements are formed into two parts, which have two line head ends and two line tail ends, and a pair of head ends and tail ends are used as the lead ends of the phase windings, and then The other pair of the leading end and the trailing end are connected in parallel as the midpoint leading end of the phase winding, so the ABC three-phase winding is a three-phase winding having a midpoint.
  • wedges are inserted into the slots of the rotor, and the material of the wedges may be plastic and fiberglass composite materials.
  • V1, V2, and V3 are upper arm power switches of the three-phase windings of A, B, and C, respectively, and the collector is connected to the power source Us.
  • the anode is connected to the input terminals of the three-phase windings of A, B, and C, respectively, and is respectively connected to the negative poles of the freewheeling diodes VD4, VD5, and VD6, and then the anodes of the freewheeling diodes VD4, VD5, and VD6 are connected to the power source Us. negative electrode.
  • the output ends of the three-phase windings of A, B, and C are respectively connected to the collectors of the bridge power switches V4, V5, and V6, and are respectively connected to the positive poles of the freewheeling diodes VD1, VD2, and VD3, and then the freewheeling diode VD1.
  • the negative poles of VD2 and VD3 are connected to the positive pole of the power source Us.
  • the emitters of the power switches V4, V5, and V6 are connected to the negative pole (power ground) of the power source Us.
  • the power drive circuit of the ordinary three-phase switched reluctance motor is constructed; the midpoint terminals of the three-phase windings of A, B, and C are respectively connected to the collectors of the auxiliary power switches V7, V8, and V9, and respectively assisted with freewheeling
  • the anodes of the diodes VD7, VD8, and VD9 are connected, and then the cathodes of the auxiliary freewheeling diodes VD7, VD8, and VD9 are connected to the anode of the power source Us.
  • the driving controller of the three-phase switched reluctance motor adds three auxiliary power switches and three auxiliary freewheeling diodes.
  • the auxiliary power switch participates in the work, it is an auxiliary working state, and the auxiliary power is turned on. When it is off, it is in normal working condition. In the normal working state, the auxiliary power switch V7, V8, V9 is turned off and stopped, and the V1 ⁇ V6 power switch of the drive controller of the three-phase switched reluctance motor works normally, so that the A, B of the three-phase switched reluctance motor can be made.
  • the C three-phase windings are all put into operation; in the auxiliary working state, the V1 ⁇ V3 and V7 ⁇ V9 auxiliary power switches of the drive controller of the three-phase switched reluctance motor are normally operated, and the power switches V4, V5, V6 are turned off and stopped.
  • Work put the 1/2 turns of the A, B, C three-phase windings of the three-phase switched reluctance motor into operation. Due to the normal working state, all three-phase windings are put into operation, the total number of turns of the motor is large, the torque generated by the motor is large, and the rotational speed is low.
  • In the auxiliary working state only 1/2 of the motor participates in the work, and the torque of the motor is small but The speed is high; the two cooperate to achieve two-speed stepless speed change.
  • the controller switches to the auxiliary working state according to the speed feedback.
  • the motor In the auxiliary working state, only 1/2 of the motor is involved in the work, and the torque of the motor is small but the speed is high. In the auxiliary working state, the motor can guarantee a high speed range (4000 to 9000 rpm), and the motor has a high efficiency platform. Although the efficiency is gradually low when the speed is close to the low speed zone, the controller switches to the speed feedback. In normal working condition, a high efficiency platform with low speed zone (0-4000 rpm) is obtained. It can be seen that the cooperation of the two working states realizes the two-speed stepless shifting, which expands the high-efficiency area of the actual working area of the motor. Therefore, the actual efficiency platform of the three-phase switched reluctance motor of the present embodiment is much wider than that of the conventional switched reluctance motor.
  • the efficiency curve of the switched reluctance motor of this embodiment is within the range of 125-50% of the rated speed, and within the range of 50-300% of the rated torque, the efficiency is not less than 86%, and the highest efficiency is 97%.
  • the switched reluctance motor structure in the embodiment of the invention effectively improves the power density of the switched reluctance motor, reduces the torque ripple and noise of the switched reluctance motor, and has a particularly wide and high efficiency working area.
  • the present invention also provides a wheel that is driven by a switched reluctance motor that is a switched reluctance motor as described in the previous embodiment.
  • the wheel may comprise a hub-type switched reluctance motor, that is, driven by a hub-type switched reluctance motor, which is a motor structure of the stator in the outer rotor.
  • the present invention also provides an electric vehicle, which may be an electric vehicle, an electric motorcycle, or an electric bicycle.
  • the electric vehicle is a pure electric or hybrid vehicle, and the wheels of the electric vehicle are driven by a switched reluctance motor, which is also a switched reluctance motor as described in the previous embodiment.
  • the driving wheel of the electric vehicle can adopt the wheel structure in the above embodiment, that is, the wheel includes a hub-type switched reluctance motor, and the wheel-type switched reluctance motor drives the wheel to rotate.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

一种开关磁阻电机，包括壳体及设于壳体内的转子（410）和定子（420），所述转子（410）包括绕周向设置的多个转子齿以及位于所述转子齿之间的转子槽（430），其中所述转子槽（430）的槽口设置有覆盖物（500）或者所述转子槽的内部设有填充物（600），以减小所述转子的空气阻力。该开关磁阻电机的转子阻力小、输出功率的效率高、低速性能好、效率平台宽、功率密度高、噪声低、环境适应性好、可靠性高、使用寿命长、生产工艺简单、成本低。可广泛用于电动车中。

Description

电动车、车轮及其开关磁阻电机 【技术领域】
本发明涉及电机的技术领域，涉及一种电动车、车轮及其开关磁阻电机。
【背景技术】
发明人在实践中发现，目前大功率电动车的轮毂驱动电机一般采用永磁同步电机和轴向磁场电机，一般很少采用开关磁阻电机。
下面对这三种电机的性能进行分析：
1、轴向磁场电机结构复杂，生产成本高，实际应用价值不高。
2、现有技术中的开关磁阻电机一般被做成内转子电机形式，外转子轮毂电机未见被采用。作为内转子应用的开关磁阻电机的低速平稳性、噪声、功率密度仍不如永磁同步电机。
3、永磁同步电机存在着易退磁、低速运行效率低、寿命较短、可维护性比较差等缺点。
另外，现有技术中转子齿间由于存在转子槽，因此空气较大，影响电机的输出功率。
【发明内容】
为了解决现有技术中开关磁阻电机由于转子空气阻力较大而导致的输出效率低的问题，本发明提供一种新型的开关磁阻电机结构，以及利用该开关磁阻电机的电动车和车轮。
为解决上述问题，本发明实施例提供了一种开关磁阻电机，所述开关磁阻电机包括壳体及设于壳体内的转子和定子，所述转子包括绕周向设置的多个转子齿以及位于所述转子齿之间的转子槽，其中所述转子槽的槽口设置有覆盖物或者所述转子槽的内部设有填充物，以减小所述转子的空气阻力。
根据本发明一优选实施例，所述填充物或所述覆盖物为绝缘绝磁材料。
根据本发明一优选实施例，所述覆盖物盖住所述转子槽的槽口或者所述填 充物填平所述转子槽。
根据本发明一优选实施例，所述填充物填充于所述转子槽时，所述填充物的侧面设有定位凸起，所述定位凸起与转子齿侧面上的定位槽配合实现对填充物的卡接定位。
根据本发明一优选实施例，每一转子齿两个齿尖中的一个为钝角，另外一个为直角或者锐角。
根据本发明一优选实施例，所述填充物填充于所述转子槽时，所述填充物与为锐角或者直角的齿尖之间平滑过渡连接；所述填充物与为钝角的齿尖之间通过弧面过渡连接。
根据本发明一优选实施例，所述填充物或所述覆盖物为塑料、玻璃钢或者复合材料。
为解决上述技术问题，本发还提供一种车轮，车轮采用开关磁阻电机驱动，所述开关磁阻电机采用上述实施例中任一项所述开关磁阻电机的结构。
为解决上述技术问题，本发进一步提供一种电动车，所述电动车为纯电动或混合动力车，所述电动车包括上述实施例中任一项所述的开关磁阻电机。
根据本发明一优选实施例，所述电动车的车轮采用轮毂式开关磁阻电机驱动。
与现有技术相比，该开关磁阻电机转子阻力小、输出功率的效率高、电机的输出转矩大、环境适应性好、可靠性高、使用寿命长、生产工艺简单、成本低。可广泛用于电动车中。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1开关磁阻电机调速系统的结构组成框图；
图2是外转子结构的开关磁阻电机及其三相绕组示意图；
图3是图2中开关磁阻电机的局部结构放大图；
图4是定子绕组的磁场分布示意图；
图5是现有技术接通方法中单个绕组的磁场分布图；
图6是定、转子相对位置与相绕组电感曲线图；
图7是转子齿结构第一优选实施例的放大图；
图8是转子齿结构第二优选实施例的放大图；
图9是转子齿结构第三优选实施例的放大图；
图10是转子齿结构第四优选实施例的放大图；
图11是现有技术中电感随转角变化的曲线图；
图12是本发明开关磁阻电机齿尖结构的电感随转角变化的曲线图；
图13是填充物盖设于转子槽的槽口的示意图；
图14是填充物填充于转子槽内的结构示意图；
图15是开关磁阻电机控制系统的组成框图；
图16是工作状态选择模块的电路结构示意图；
图17是内转子结构的开关磁阻电机及其三相绕组示意图；
图18是图17中开关磁阻电机的局部结构放大图；以及
图19是一种优选的内转子结构的示意图。
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第 三”“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
开关磁阻电机的一种调速系统的组成框图如图1所示，该调速系统一般包括开关磁阻电机100、功率变换器200、控制器300以及位置传感器400。关于调速系统各组成单元之间的控制过程，在本领域技术人员的理解范围内，此处不再详述。
本发明实施例提供一种开关磁阻电机，该开关磁阻电机为三相开关磁阻电机，包括壳体及设于壳体内的凸极转子和凸极定子，定子的齿上绕有ABC三相绕组。
优选的，ABC三相绕组中的每一相均包括至少三个引出端，其中包括两个端部引出端，位于绕组两端，还包括至少一个中部引出端，该中部引出端位于绕组中间的某一位置，这样，当将中部某一引出端和其中一个端部引出端接入电路时，则每一相绕组只有部分通电工作，而将两个端部引出端接入电路时，则每一相绕组全部通电工作，从而实现对工作状态的调节。
例如，ABC三相绕组中的每一相均是具有中点的三相绕组，中部引出端即与绕组的中点相连接，则绕组可以全部接入电路进行工作，对应于电机的正常工作状态，也可以以其一半接入电路进行工作，对应于电机辅助工作状态。ABC三相绕组可以设置成包括多个中部引出端，这样电机的工作状态则可以有多种档位调节。
优选的，本实施例中开关磁阻电机可以为外转子内定子电机，其中，如图2所示，定子包括绕周向间隔设置的多个定子齿和位于定子齿之间的定子槽；转 子包括绕周向设置的多个转子齿和位于转子齿之间的转子槽。该转子410可以为16极的外转子、定子420为24槽的内定子。
如图2所示，16极外转子24槽内定子电机可采用ABCABC......的顺序绕制，共24个绕组元件，三相绕组各有8个串联的绕组元件，绕组元件采用多根绝缘铜线并绕，将多根绝缘铜线分成两半，如此8个串联的绕组元件，又形成并绕的两部分，共有两个线首端和两个线尾端，将其中一对线首端和线尾端作为为该相绕组的端部引出端，再将另一对线首端与线尾端并接后，作为该相绕组的中点引出端，因此ABC三相绕组是具有中点引出端的三相绕组。当然，在其他实施例中，三相绕组中的每一项还可以设有多个中部引出端，且引出位置也不限于在绕组的中点，在本领域技术人员的理解范围内，此处不再赘述。
请参阅图3，图3是图2中开关磁阻电机的局部结构放大图。优选的，本实施例中定子的槽底宽度L10与定子齿的宽度L8之比为1～1.25，槽深D1是齿宽L8的2～4倍。此设计可以保证电机的材料利用率高，震动和噪声小。这是由于开关磁阻电机不使用永磁体，仅仅使用铁芯和铜线，当其用铜量与用铁量相当时，电机的材料利用率最高。而开关磁阻电机的定子的槽底宽度与定子齿的宽度比为1时，可以认为其用铜量与用铁量相当，槽底宽度与定子齿的宽度比大于1，则可以放更多铜线。但如果槽底宽度与定子齿的宽度比过大，当槽深是齿宽的2～4倍时，意味着定子齿的宽度太窄，当齿上绕组通电后，定、转子在强烈的磁拉力作用下，容易产生震动和噪声。本发明定子的槽深、齿和槽的宽度比的取值范围，有效确保电机的材料利用率高，也即提高了电机的功率密度，且抑制了震动和噪声。
优选的，外转子的槽口宽度L7与转子齿的宽度L6满足：L7/L6为1～0.75，槽深D2为转子410与定子420之间气隙δ的20～30倍。转子的这种结构设计与定子的槽底宽度L10与定子齿的宽度L8之比为1～1.25，槽深D1是齿宽L8的2～4倍的设计相配合，导致本发明开关磁阻电机的与最大电感Lmax与最小电感Lmin之比Lmax/Lmin值要比传统开关磁阻电机大得多，本发明的电感比 可高达6～8，而传统开关磁阻电机只能达到2.5～4.5左右。由于开关磁阻电机的输出力矩
Figure PCTCN2016100677-appb-000001
电感比高意味
Figure PCTCN2016100677-appb-000002
大，电机的输出力矩就大，也即成倍提高了电机的功率密度。其中，在本实施例中转子与定子之间的气隙δ的宽度可以设计为δ＝(0.25～0.5)mm。
进一步地，为了提高电机的功率密度，本实施例中定子的相邻定子齿上的绕组产生的磁场方向相反，请参阅图4，图4是定子绕组的磁场分布示意图，相比较于传统的绕组通电方法，相邻定子齿上的绕组的磁场方向相同，使每个绕组单独形成一个小磁场，请参阅图5，图5是现有技术接通方法中单个绕组的磁场分布图；本实施例中相邻定子齿的绕组的电流方向相反，以使相邻绕组产生的磁场方向相反；该种接通方法可以使相邻定子绕组之间共同形成磁场，此种结构可以提高磁场密度，使磁阻转矩变大，进而提高电机的功率密度。该种绕组的通电方式不但适用于本实施例中的16极24槽的电机结构，同样适用于转子为(8×n)极的转子，定子为(12×n)槽的定子(其中，n为大于等于2的正整数)的电机结构。
传统电机的电感随转角变化的曲线如图6所示，存在电感不变的小区间，该区间的
Figure PCTCN2016100677-appb-000003
不产生力矩。为了缩小该区间，提高电机的利用率，本发明转子的每一个转子齿的两侧设计为非对称结构，譬如转子齿的两个齿尖的角度设计为不同的角度等。则电机的电感随转角变化的曲线
Figure PCTCN2016100677-appb-000004
的区间变小，甚至消失。而转子齿两个齿尖中的至少一个可以设计为钝角。
进一步优选地，请一并参阅图7，图7是转子齿结构第一优选实施例的放大图，本实施例中的转子齿的两个齿尖中的一个齿尖4101设计成钝角，另一个齿尖4102设计为锐角或者直角。其中，转子齿尖钝角的深度D3可以为气隙δ的1～2倍，转子齿尖钝角的宽度D4可以为转子齿的宽度L6的1/10～1/5，若电机按钝角的方向顺序地对三相绕组通电，可以大幅度减小电机的噪声。
另外，在其他实施例中，转子齿的两个齿尖还可以都设计成钝角、都设计成锐角或者锐角与直角搭配的结构形式，只要保证转子齿的两侧为非对称结构 即可。请进一步参阅图8-图10，图8是转子齿结构第二优选实施例的放大图，图9是转子齿结构第三优选实施例的放大图，以及图10是转子齿结构第四优选实施例的放大图；其中，图8实施例中转子齿的两侧齿尖一个为圆弧结构4101，另一个为削角结构4102，削角位置形成两个钝角；图9实施例中转子齿的两侧齿尖一个为锐角或者直角结构4101，另一个为突出的尖角结构4102，而图10实施例中转子齿的两侧齿尖一个为锐角或者直角结构4101，另一个齿尖附近设有一凹槽的结构4102。以上仅仅列举了几种转子齿的结构，本发明保护的主旨是转子齿的两侧为非对称结构。当然，在其他实施例中，还可以有多种变化的转子齿结构，此处不再一一列举。
请参阅图11和图12，图11是现有技术中电感随转角变化的曲线图，图12是本发明开关磁阻电机齿尖结构的电感随转角变化的曲线图，很显然，本发明中的齿尖设计结构，其电感随转角变化的曲线
Figure PCTCN2016100677-appb-000005
的区间变小(图中标号X为位置)，甚至消失，即不产生力矩的区间很小甚至消失，从很大程度上提高了电机的磁通利用率，进而增大了电机的输出转矩。
优选的，转子槽的槽口或者转子槽内部还可以设置填充物，以减小转子的风阻。该填充物(覆盖物)需要为绝缘绝磁材料，譬如塑料、玻璃钢或者复合材料等等。
请一并参阅图13和图14，图13和图14是两种填充物设置结构的示意图，其中，图13是覆盖物盖设于转子槽的槽口的示意图，图14是填充物填充于转子槽内的结构示意图。
图13中覆盖物500可以为粘贴在转子槽430槽口的带状结构，覆盖物500可以为一整条覆盖在整个转子的所有转子槽430上，还可以为分段结构覆盖部分转子槽430，在本领域技术人员的理解范围内，此处不再详述。
图14中填充物500为填充在转子槽430内楔块，优选为填平转子槽430。在填充物500填充于转子槽时，填充物500与锐角或者直角齿尖结构的转子齿之间平滑过渡连接(图14中标注510位置处)；而填充物500与钝角齿尖结构 的转子齿之间通过弧面(图14中标注520位置处)过渡连接。这种填充物500与两侧转子齿之间通过平滑过渡结构连接可以保证转子的整体外侧面为平滑结构，达到最大程度的减小风阻的目的。
进一步地，为了使填充物500可以可靠的镶嵌在相应的转子槽内，在转子齿的侧面上可以设置有的定位槽(图中未标注)，相应地，填充物500的侧面设有与定位槽结构相适配的定位凸起530，该定位凸起530与定位槽配合实现对填充物500的卡接定位，进而保证填充物500可靠的镶嵌在相应的转子槽内。当然，图14中仅仅示意了一种弧状结构的定位突起530，当然，还可以为燕尾结构等，只要能够保证填充物500可以稳定镶嵌或者卡接在转子槽内即可，此处不再一一列举。
本发明另外还提供一种开关磁阻电机的控制系统，请参阅图15，图15是开关磁阻电机控制系统的组成框图；该系统包括开关磁阻电机510和驱动器520，其中开关磁阻电机510可以是前述实施例描述的开关磁阻电机。
该驱动器520至少包括工作状态选择模块521，该工作状态选择模块521用于选择三相绕组的位于两个端部引出端之间全部绕组或位于端部引出端与中点引出端之间或中点引出端之间的部分进行工作，以使得开关磁阻电机实现不同扭矩输出。
该工作状态选择模块521至少包括三个第一开关、三个第二开关、三个第三开关、三个第一续流二极管、三个第二续流二极管以及三个第三续流二极管，其中三个第一开关的集电极接电源的正极，发射极分别连接对应的一相绕组的一个端部引出端，三个第二开关的集电极分别连接对应的一相绕组的另一个端部引出端，发射极连接电源的负极，三个第三开关的集电极分别连接对应的一相绕组的中点引出端，发射极连接电源的负极，三个第一续流二极管的负极分别连接对应的一相绕组所连接的第一开关的集电极，正极分别连接对应的一相绕组所连接的第二开关的集电极，三个第二续流二极管的负极分别连接对应的一相绕组所连接的第一开关的发射极，正极分别连接对应的一相绕组所连接的 第二开关的发射极，三个三续流二极管的负极分别连接对应的一相绕组所连接的第一开关的集电极，正极分别连接对应的一相绕组所连接的第三开关的集电极。
举例来说，如图16所示，上述工作状态选择模块521可包括3个辅助功率开关V7、V8、V9和3个辅助续流二极管VD7、VD8、VD9，辅助功率开关参与工作时，为辅助工作状态；辅助功率开关停止工作时，为正常工作状态。
当ABC三相绕组是具有中点的三相绕组时(即以绕组的中点引出端为例)，V1、V2、V3分别是A、B、C三相绕组的上桥臂功率开关，其集电极接电源Us的正极；其发射极分别接A、B、C三相绕组的输入端，且分别与续流二极管VD4、VD5、VD6的负极相连，然后将续流二极管VD4、VD5、VD6的正极接电源Us的负极。A、B、C三相绕组的输出端分别接下桥臂功率开关V4、V5、V6的集电极，且分别与续流二极管VD1、VD2、VD3的正极相连，然后将续流二极管VD1、VD2、VD3的负极接电源Us的正极。而功率开关V4、V5、V6的发射极接电源Us的负极(电源地)。如此构成三相开关磁阻电机的功率驱动电路；A、B、C三相绕组的中点引出端分别与辅助功率开关V7、V8、V9的集电极相连接，且分别与辅助续流二极管VD7、VD8、VD9的正极相连，然后将辅助续流二极管VD7、VD8、VD9的负极接电源Us的正极。
正常工作状态时，让辅助功率开关V7、V8、V9关断停止工作，三相开关磁阻电机驱动控制器的V1～V6功率开关正常工作，可以使三相开关磁阻电机的A、B、C三相绕组全部投入工作；辅助工作状态时，让三相开关磁阻电机驱动控制器的V1～V3和V7～V9辅助功率开关正常工作，而功率开关V4、V5、V6关断停止工作，使三相开关磁阻电机的A、B、C三相绕组的1/2匝数绕组投入工作。由于正常工作状态时，三相绕组全部投入工作，电机的总匝数大，电机产生的力矩大，转速低；辅助工作状态时，电机的只有1/2匝数参与工作，电机的力矩小但转速高；两者配合实现了两档无极变速。
本实施例三相开关磁阻电机的驱动控制器520可以在当电机获得输入转速 时，利用开关磁阻电机的位置传感器，令其在三相绕组电感随位置角变化的变化率，
Figure PCTCN2016100677-appb-000006
的区域，对相应的三相绕组的功率开关进行开关控制，实现发电机运行。
该驱动控制器520可以根据转速，控制开关磁阻电机在正常工作状态和辅助工作状态下运行；正常工作状态时，让辅助功率开关V7、V8、V9关断停止工作，三相开关磁阻电机的驱动控制器的V1～V6功率开关正常工作，可以使三相开关磁阻电机的A、B、C三相绕组全部投入工作；辅助工作状态时，让三相开关磁阻电机的驱动控制器的V1～V3和V7～V9辅助功率开关正常工作，而功率开关V4、V5、V6关断停止工作，使三相开关磁阻电机的A、B、C三相绕组的1/2匝数绕组投入工作。由于正常工作状态时，三相绕组全部投入工作，电机的总匝数大，电机适应大力矩，转速低状态；辅助工作状态时，电机的只有1/2匝数参与工作，电机适应小力矩高转速状态；两者配合实现了低转速发电机运行和高转速发电机运行。
本实施例中三相开关磁阻电机作为发电机运行的突出优点是：完全没有由于齿槽效应产生的定位力矩；加上拥有低转速发电机运行和高转速发电机运行模式，高效率发电的区域非常宽。
本发明实施例中的开关磁阻电机结构有效提高了开关磁阻电机的功率密度，降低开关磁阻电机的转矩波动和噪音，具有特别宽的高效率工作区域。该开关磁阻电机完全没有由于齿槽效应产生的定位力矩，作为发电机运行，高效率发电的区域非常宽。
另外，在工作状态选择模块521选择接入绕组其他位置的中部引出线时，还可以组合出不同的档位变换形式，在本领域技术人的理解范围内，此处不再一一详述。
进一步地，本发明实施例还提供一种内转子外定子结构的开关磁阻电机，请参阅图17，图17是内转子结构的开关磁阻电机及其三相绕组示意图。优选地，该实施例中的开关磁阻电机为具有16个转子齿的16极的内转子且具有24个定 子槽的24槽外定子电机。图中标号210为定子，220为转子。
同样的，该16极内转子24槽外定子电机可采用ABCABC......的顺序绕制，共24个绕组元件，三相绕组各有8个串联的绕组元件，绕组元件采用多根绝缘铜线并绕，将多根绝缘铜线分成两半，如此8个串联的绕组元件，又形成并绕的两部分，共有两个线首端和两个线尾端，将其中一对线首端和线尾端作为为该相绕组的端部引出端，再将另一对线首端与线尾端并接后，作为该相绕组的中点引出端，因此ABC三相绕组是具有中点引出端的三相绕组。当然，在其他实施例中，三相绕组中的每一项还可以设有多个中部引出端，且引出位置也不限于在绕组的中点，在本领域技术人员的理解范围内，此处不再赘述。
请一并参阅图18，图18是图17中开关磁阻电机的局部结构放大图。优选的，本实施例中定子的槽口宽度L2与定子齿的宽度L1之比为1～1.25，槽深D5是齿宽L1的2～4倍。此设计可以保证电机的材料利用率高，震动和噪声小。这是由于开关磁阻电机不使用永磁体，仅仅使用铁芯和铜线，当其用铜量与用铁量相当时，电机的材料利用率最高。而开关磁阻电机的定子的槽口宽度与定子齿的宽度比为1时，可以认为其用铜量与用铁量相当，槽口宽度与定子齿的宽度比大于1，则可以放更多铜线。但如果槽口宽度与定子齿的宽度比过大，当槽深是齿宽的2～4倍时，意味着定子齿的宽度太窄，当齿上绕组通电后，定、转子在强烈的磁拉力作用下，容易产生震动和噪声。本发明定子的槽深、齿和槽的宽度比的取值范围，有效确保电机的材料利用率高，也即提高了电机的功率密度，且抑制了震动和噪声。
优选的，外转子的槽口宽度L5与转子齿的宽度L4满足：L5/L4为1～0.75，槽深D6为转子220与定子210之间气隙δ的20～30倍。转子的这种结构设计与定子的槽口宽度L5与定子齿的宽度L4之比为1～1.25，槽深D5是齿宽L1的2～4倍的设计相配合，导致本发明开关磁阻电机的与最大电感Lmax与最小电感Lmin之比Lmax/Lmin值要比传统开关磁阻电机大得多，本发明的电感比可高达6～8，而传统开关磁阻电机只能达到2.5～4.5左右。由于开关磁阻电机 的输出力矩
Figure PCTCN2016100677-appb-000007
电感比高意味
Figure PCTCN2016100677-appb-000008
大，电机的输出力矩就大，也即成倍提高了电机的功率密度。其中，在本实施例中转子与定子之间的气隙δ的宽度可以设计为δ＝(0.25～0.5)mm。
为了进一步提高电机的功率密度，本实施例中定子的相邻定子齿上的绕组也采用产生磁场方向相反的电流控制形式，具体的磁场形式及原理请参数上述实施例中的相关描述，此处不再赘述。
请参阅图19，图19是一种优选的内转子结构的示意图，优选地，本实施例中的转子齿两侧齿尖同样可以设计成角度不同的结构，关于转子齿齿尖的结构特征，请参阅上述实施例中的相关描述，此处不再赘述。
另外，转子槽内同样可以设置填充物(图中标号600)，以减小转子的风阻，图中虽然只标示出了一处设置有填充物600，但应该是所有转子槽内都设置填充物600。而关于填充物600的设置结构以及材料等技术特征，也请参阅上述实施例中的相关描述，此处亦不再重复。
内转子结构电机的一个最优实施例
本实施例中的开关磁阻电机包括凸极转子、凸极定子以及驱动控制器等，其中，转子为16极、定子为24槽。
本实施例取定子的槽口宽度与定子齿的宽度之比为1/0.8，槽深是齿宽的3倍。此设计有效确保电机的材料利用率高，也即提高了电机的功率密度，且抑制了震动和噪声。
本实施例三相开关磁阻电机，16极的转子的槽口宽度角与转子齿的宽度之比为0.8，槽深为气隙δ的25倍。转子的这种设计结构可使电感比高达7，而传统开关磁阻电机只能达到2.5～4.5左右。由于开关磁阻电机的输出力矩
Figure PCTCN2016100677-appb-000009
Figure PCTCN2016100677-appb-000010
电感比高意味
Figure PCTCN2016100677-appb-000011
大，电机的输出力矩就大，也即成倍提高了电机的功率密度。
同时转子的每一个转子齿的两个齿尖中的一个齿尖设计成钝角，另一个为锐角。则电机的电感随转角变化的曲线
Figure PCTCN2016100677-appb-000012
的区间变小，甚至消失。若电机 按钝角的方向顺序地对三相绕组通电，还可以大幅度减小电机的噪声。
本实施例三相开关磁阻电机的转子、定子之间的气隙δ的宽度为δ＝0.25mm，转子齿齿尖钝角的深度为0.3mm，钝角的宽度为转子齿的宽度的1/6。
本实施例定子的齿上绕有ABC三相绕组，ABC三相绕组是具有中点的三相绕组。三相绕组的分布顺序分别为A-B-C-A-B-C-A-B-C-A-B-C-A-B-C-A-B-C-A-B-C-A-B-C-共24个绕组元件，三相绕组各有8个串联的绕组元件；绕组元件采用多根绝缘铜线并绕，将多根绝缘铜线分成两半，如此8个串联的绕组元件，又形成并绕的两部分，共有两个线首端和两个线尾端，将其中一对首端和尾端作为为该相绕组的引出端，再将另一对首端、尾端并接后，作为该相绕组的中点引出端，因此ABC三相绕组是具有中点的三相绕组。
本实施例中的三相开关磁阻电机，为了减小风阻和噪音，转子的槽内插有楔块，楔块的材料可以为塑料和玻璃纤维复合材料等。
本实施例三相开关磁阻电机的驱动控制电路图中(请参阅图16)，V1、V2、V3分别是A、B、C三相绕组的上桥臂功率开关，其集电极接电源Us的正极；其发射极分别接A、B、C三相绕组的输入端，且分别与续流二极管VD4、VD5、VD6的负极相连，然后将续流二极管VD4、VD5、VD6的正极接电源Us的负极。A、B、C三相绕组的输出端，分别接下桥臂功率开关V4、V5、V6的集电极，且分别与续流二极管VD1、VD2、VD3的正极相连，然后将续流二极管VD1、VD2、VD3的负极接电源Us的正极。而功率开关V4、V5、V6的发射极接电源Us的负极(电源地)。如此构成普通三相开关磁阻电机的功率驱动电路；A、B、C三相绕组的中点引出端，分别与辅助功率开关V7、V8、V9的集电极相连接，且分别与辅助续流二极管VD7、VD8、VD9的正极相连，然后将辅助续流二极管VD7、VD8、VD9的负极接电源Us的正极。
本实施例中三相开关磁阻电机的驱动控制器增加了3个辅助功率开关和3个辅助续流二极管，辅助功率开关参与工作时，为辅助工作状态，辅助功率开 关停止工作时，为正常工作状态。正常工作状态时，让辅助功率开关V7、V8、V9关断停止工作，三相开关磁阻电机的驱动控制器的V1～V6功率开关正常工作，可以使三相开关磁阻电机的A、B、C三相绕组全部投入工作；辅助工作状态时，让三相开关磁阻电机的驱动控制器的V1～V3和V7～V9辅助功率开关正常工作，而功率开关V4、V5、V6关断停止工作，使三相开关磁阻电机的A、B、C三相绕组的1/2匝数绕组投入工作。由于正常工作状态时，三相绕组全部投入工作，电机的总匝数大，电机产生的力矩大，转速低；辅助工作状态时，电机的只有1/2匝数参与工作，电机的力矩小但转速高；两者配合实现了两档无极变速。
由于正常工作状态时，三相绕组全部投入工作，电机的总匝数大，电机产生的力矩大，转速低。正常工作状态时，能够保证低转速区间，电机有高的效率平台，转速接近高速区效率渐渐变低，此时控制器根据转速反馈，切换到辅助工作状态。
辅助工作状态时，电机的只有1/2匝数参与工作，电机的力矩小但转速高。辅助工作状态时，电机能够保证高转速区间(4000～9000转/分)，电机有高的效率平台，尽管当转速接近低速区效率渐渐变低，但此时控制器根据转速反馈，又切换到正常工作状态，获得低速区(0～4000转/分)的高的效率平台。可见，两种工作状态的配合实现了两档无极变速，扩展了电机实际工作区域的高效率区域。因此，本实施例三相开关磁阻电机的实际效率平台比传统开关磁阻电机宽许多。
本实施例开关磁阻电机效率曲线在125-50％额定转速范围内，和在50-300％额定扭矩范围内，效率不低于86％，最高效率97％。
本发明实施例中的开关磁阻电机结构有效提高了开关磁阻电机的功率密度，降低开关磁阻电机的转矩波动和噪音，具有特别宽的高效率工作区域。
本发明还提供一种车轮，该车轮采用开关磁阻电机驱动，而该开关磁阻电机为如前实施例中所述的开关磁阻电机。
优选地，该车轮可以包括轮毂式开关磁阻电机，即利用轮毂式开关磁阻电机驱动，该轮毂式开关磁阻电机为外转子内定子的电机结构。
进一步地，本发明还提供一种电动车，该电动车可以为电动汽车、电动摩托车或者电动自行车等。该电动车为纯电动或混合动力车，该电动车的车轮采用开关磁阻电机驱动，该开关磁阻电机也为如前实施例中所述的开关磁阻电机。优选的，该电动车的驱动轮可采用上述实施例中的车轮结构，即车轮包括轮毂式开关磁阻电机，利用轮毂式开关磁阻电机驱动车轮转动。
需要说明的是，以上各实施例均属于同一发明构思，各实施例的描述各有侧重，在个别实施例中描述未详尽之处，可参考其他实施例中的描述。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：闪存盘、只读存储器(Read-Only Memory，ROM)、随机存取器(Random Access Memory，RAM)、磁盘或光盘等。
以上对本发明实施例所提供的开关磁阻电机及系统进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (18)

  1. 一种开关磁阻电机，其特征在于，所述开关磁阻电机包括壳体及设于壳体内的转子和定子，所述转子包括绕周向设置的多个转子齿以及位于所述转子齿之间的转子槽，其中所述转子槽的槽口设置有覆盖物或者所述转子槽的内部设有填充物，以减小所述转子的空气阻力。
  2. 根据权利要求1所述开关磁阻电机，其特征在于，所述填充物或所述覆盖物为绝缘绝磁材料。
  3. 根据权利要求1所述开关磁阻电机，其特征在于，所述覆盖物盖住所述转子槽的槽口或者所述填充物填平所述转子槽。
  4. 根据权利要求3所述开关磁阻电机，其特征在于，所述填充物填充于所述转子槽时，所述填充物的侧面设有定位凸起，所述定位凸起与转子齿侧面上的定位槽配合实现对填充物的卡接定位。
  5. 根据权利要求3所述开关磁阻电机，其特征在于，每一转子齿两个齿尖中的一个为钝角，另外一个为直角或者锐角。
  6. 根据权利要求5所述开关磁阻电机，其特征在于，所述填充物填充于所述转子槽时，所述填充物与为锐角或者直角的齿尖之间平滑过渡连接；所述填充物与为钝角的齿尖之间通过弧面过渡连接。
  7. 根据权利要求2所述开关磁阻电机，其特征在于，所述填充物或所述覆盖物为塑料、玻璃钢或者复合材料。
  8. 一种车轮，其特征在于，所述车轮采用开关磁阻电机驱动，所述开关磁阻电机包括壳体及设于壳体内的转子和定子，所述转子包括绕周向设置的多个转子齿以及位于所述转子齿之间的转子槽，其中所述转子槽的槽口设置有覆盖物或者所述转子槽的内部设有填充物，以减小所述转子的空气阻力。
  9. 根据权利要求8所述的车轮，其特征在于，所述开关磁阻电机为轮毂式开关磁阻电机。
  10. 一种电动车，其特征在于，所述电动车为纯电动或混合动力车，所述 电动车包括一种开关磁阻电机，所述开关磁阻电机包括壳体及设于壳体内的转子和定子，所述转子包括绕周向设置的多个转子齿以及位于所述转子齿之间的转子槽，其中所述转子槽的槽口设置有覆盖物或者所述转子槽的内部设有填充物，以减小所述转子的空气阻力。
  11. 根据权利要求10所述的电动车，其特征在于，所述填充物或所述覆盖物为绝缘绝磁材料。
  12. 根据权利要求10所述的电动车，其特征在于，所述覆盖物盖住所述转子槽的槽口或者所述填充物填平所述转子槽。
  13. 根据权利要求12所述的电动车，其特征在于，所述填充物填充于所述转子槽时，所述填充物的侧面设有定位凸起，所述定位凸起与转子齿侧面上的定位槽配合实现对填充物的卡接定位。
  14. 根据权利要求12所述的电动车，其特征在于，每一转子齿两个齿尖中的一个为钝角，另外一个为直角或者锐角。
  15. 根据权利要求14所述的电动车，其特征在于，所述填充物填充于所述转子槽时，所述填充物与为锐角或者直角的齿尖之间平滑过渡连接；所述填充物与为钝角的齿尖之间通过弧面过渡连接。
  16. 根据权利要求11所述的电动车，其特征在于，所述填充物或所述覆盖物为塑料、玻璃钢或者复合材料。
  17. 根据权利要求10所述的电动车，其特征在于，所述开关磁阻电机为轮毂式开关磁阻电机。
  18. 根据权利要求10所述的电动车，其特征在于，所述电动车为电动汽车、电动摩托车或者电动自行车。
PCT/CN2016/100677 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机 WO2017173790A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610217433.1 2016-04-08
CN201610217433 2016-04-08

Publications (1)

Publication Number Publication Date
WO2017173790A1 true WO2017173790A1 (zh) 2017-10-12

Family

ID=57715670

Family Applications (6)

Application Number Title Priority Date Filing Date
PCT/CN2016/100597 WO2017173785A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机、开关磁阻电机系统
PCT/CN2016/100674 WO2017173789A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机
PCT/CN2016/100673 WO2017173788A1 (zh) 2016-04-08 2016-09-28 电动车及其开关磁阻电机、开关磁阻电机系统
PCT/CN2016/100615 WO2017173786A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机、开关磁阻电机系统
PCT/CN2016/100677 WO2017173790A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机
PCT/CN2016/100662 WO2017173787A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机

Family Applications Before (4)

Application Number Title Priority Date Filing Date
PCT/CN2016/100597 WO2017173785A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机、开关磁阻电机系统
PCT/CN2016/100674 WO2017173789A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机
PCT/CN2016/100673 WO2017173788A1 (zh) 2016-04-08 2016-09-28 电动车及其开关磁阻电机、开关磁阻电机系统
PCT/CN2016/100615 WO2017173786A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机、开关磁阻电机系统

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/100662 WO2017173787A1 (zh) 2016-04-08 2016-09-28 电动车、车轮及其开关磁阻电机

Country Status (2)

Country Link
CN (12) CN206149037U (zh)
WO (6) WO2017173785A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206149037U (zh) * 2016-04-08 2017-05-03 深圳市配天电机技术有限公司 电动车及其开关磁阻电机、开关磁阻电机系统
CN109286350B (zh) * 2017-07-21 2021-06-18 深圳市配天电机技术有限公司 电动车、车轮、开关磁阻电机及其电流的控制方法
CN108110983A (zh) * 2018-01-12 2018-06-01 上海理工大学 一种开关磁阻轮毂电机及其运行方法
CN108808900A (zh) * 2018-06-22 2018-11-13 淮北思尔德电机有限责任公司 一种开关磁阻电机
CN110329083A (zh) * 2019-06-17 2019-10-15 浙江鸿吉智能控制有限公司 一种电动摩托车
CN113824288B (zh) * 2020-06-18 2023-08-04 天津中艺银舟电机制造有限公司 一种多档轮毂电机及其控制方法
CN114421666B (zh) * 2022-02-28 2024-02-06 上海交通大学 双馈开关磁阻电机、系统及其控制方法
CN117526659B (zh) * 2023-11-27 2024-05-17 皖西学院 一种低损耗开关磁阻电机及其控制系统

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2245820Y (zh) * 1995-04-14 1997-01-22 满永奎 一种开关磁阻电机
US5604388A (en) * 1994-02-16 1997-02-18 Emerson Electric Co. Switched reluctance rotor molded lug
CN2660765Y (zh) * 2003-09-19 2004-12-01 殷天明 一种开关磁阻电机转子结构
CN202183652U (zh) * 2011-07-19 2012-04-04 上海电机学院 低风阻磁通切换电机
CN202696300U (zh) * 2012-06-18 2013-01-23 中国航空工业第六一八研究所 一种开关磁阻电机填充型转子结构
CN202997734U (zh) * 2012-12-18 2013-06-12 杨昌良 两相开关磁阻电机转子结构
CN204258479U (zh) * 2014-11-14 2015-04-08 浙江中自机电控制技术有限公司 一种开关磁阻电机转子的填充结构
CN105322677A (zh) * 2015-10-29 2016-02-10 周斌欣 一种开关磁阻电机
CN105897053A (zh) * 2014-09-10 2016-08-24 董福民 永磁动力机的结构原理和技术工艺

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5053666A (en) * 1988-06-06 1991-10-01 General Electric Company Construction of reluctance motors
US5099186A (en) * 1990-12-31 1992-03-24 General Motors Inc. Integrated motor drive and recharge system
DE4330386A1 (de) * 1993-09-08 1995-03-09 Licentia Gmbh Geschalteter Reluktanzmotor
US6247906B1 (en) * 1999-05-28 2001-06-19 Joseph M. Pijanowski Combined pump and motor device
JP2000350390A (ja) * 1999-06-04 2000-12-15 Daikin Ind Ltd スイッチトリラクタンスモータ
GB9915370D0 (en) * 1999-07-02 1999-09-01 Black & Decker Inc Electrical machines
WO2005022738A2 (en) * 2003-01-31 2005-03-10 Light Engineering, Inc. Efficient high-speed electric device using low-loss materials
US20040155545A1 (en) * 2003-02-06 2004-08-12 Martin Kaplan Switched reluctance motor having improved stator pole design
JP4606714B2 (ja) * 2003-09-03 2011-01-05 株式会社ミツバ 電動モータ
JP4581640B2 (ja) * 2004-11-17 2010-11-17 トヨタ自動車株式会社 車両駆動システムおよびそれを備える車両
CN101001065A (zh) * 2006-01-13 2007-07-18 苏州扬名机电有限公司 并联型多段无触点开关调速电机驱动方案
DE102007022511B4 (de) * 2007-05-14 2009-07-30 Repower Systems Ag Windenergieanlage mit einer Verstelleinrichtung für die Rotorblätter
JP2009118618A (ja) * 2007-11-06 2009-05-28 Hitachi Ltd 車両用交流発電機及びそれを用いた自動車，車両用交流発電機の製造方法、及び車両用回転電機
CN101667758A (zh) * 2009-09-29 2010-03-10 河北工业大学 一种开关磁阻电机的转子结构
CN101702562A (zh) * 2009-11-09 2010-05-05 南京航空航天大学 无交叠绕组分段转子开关磁阻电机
CN101719709B (zh) * 2009-12-29 2012-02-01 卧龙电气集团股份有限公司 电容分裂式电路用开关磁阻电机
CN201656724U (zh) * 2009-12-29 2010-11-24 卧龙电气集团股份有限公司 一种开关磁阻电机
GB2489423A (en) * 2011-03-25 2012-10-03 Technelec Ltd Flux switching electrical machine with slotted rotor
US20120306296A1 (en) * 2011-06-02 2012-12-06 Samsung Electro-Mechanics Co., Ltd. Switched reluctance motor
CN202586521U (zh) * 2012-05-04 2012-12-05 山东德森机电科技股份有限公司 新型开关磁阻电机
CN202997900U (zh) * 2012-12-18 2013-06-12 杨昌良 两相开关磁阻电机
CN103151865B (zh) * 2013-02-07 2015-05-27 浙江中自机电控制技术有限公司 一种sr电机低高速均能高效运行的方法及其sr电机
CN203193467U (zh) * 2013-04-11 2013-09-11 天津富迪机电有限公司 电动自行车和电动摩托车用开关磁阻电机
CN103475111B (zh) * 2013-09-28 2016-04-13 台州佳能电子有限公司 一种电机
CN203761230U (zh) * 2014-01-22 2014-08-06 珠海格力节能环保制冷技术研究中心有限公司 开关磁阻电机
CN104158240B (zh) * 2014-07-23 2016-08-24 浙江大学 一种用于电动汽车充电的分散式源馈开关磁阻电机系统
CN105207439B (zh) * 2015-08-31 2017-06-27 浙江大学 一种基于裂相抽头具有容错功能的开关磁阻电机系统及其故障诊断方法
CN206149037U (zh) * 2016-04-08 2017-05-03 深圳市配天电机技术有限公司 电动车及其开关磁阻电机、开关磁阻电机系统

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5604388A (en) * 1994-02-16 1997-02-18 Emerson Electric Co. Switched reluctance rotor molded lug
CN2245820Y (zh) * 1995-04-14 1997-01-22 满永奎 一种开关磁阻电机
CN2660765Y (zh) * 2003-09-19 2004-12-01 殷天明 一种开关磁阻电机转子结构
CN202183652U (zh) * 2011-07-19 2012-04-04 上海电机学院 低风阻磁通切换电机
CN202696300U (zh) * 2012-06-18 2013-01-23 中国航空工业第六一八研究所 一种开关磁阻电机填充型转子结构
CN202997734U (zh) * 2012-12-18 2013-06-12 杨昌良 两相开关磁阻电机转子结构
CN105897053A (zh) * 2014-09-10 2016-08-24 董福民 永磁动力机的结构原理和技术工艺
CN204258479U (zh) * 2014-11-14 2015-04-08 浙江中自机电控制技术有限公司 一种开关磁阻电机转子的填充结构
CN105322677A (zh) * 2015-10-29 2016-02-10 周斌欣 一种开关磁阻电机

Also Published As

Publication number Publication date
CN206149116U (zh) 2017-05-03
WO2017173788A1 (zh) 2017-10-12
CN206149034U (zh) 2017-05-03
CN106300715A (zh) 2017-01-04
CN206149115U (zh) 2017-05-03
CN106357070A (zh) 2017-01-25
CN106385118A (zh) 2017-02-08
CN206149121U (zh) 2017-05-03
WO2017173785A1 (zh) 2017-10-12
CN206149037U (zh) 2017-05-03
CN106341021A (zh) 2017-01-18
WO2017173789A1 (zh) 2017-10-12
WO2017173787A1 (zh) 2017-10-12
WO2017173786A1 (zh) 2017-10-12
CN106329755A (zh) 2017-01-11
CN206149035U (zh) 2017-05-03
CN106451984A (zh) 2017-02-22
CN106451984B (zh) 2018-06-19

Similar Documents

Publication Publication Date Title
WO2017173790A1 (zh) 电动车、车轮及其开关磁阻电机
US6847144B1 (en) Permanent magnet rotor assembly for interior permanent magnet electric motor
CN102342003B (zh) 电机
US6646407B2 (en) Electric motor control having DC-DC converter and method of using same
US7969057B2 (en) Synchronous motor with rotor having suitably-arranged field coil, permanent magnets, and salient-pole structure
CN104882978A (zh) 一种低转矩脉动高效率永磁电机定转子结构
CN102088234B (zh) 无刷直流电机
CN203761230U (zh) 开关磁阻电机
CN108400660B (zh) 一种倍极式多磁极两相开关磁阻电机及其功率驱动电路
CN108512465B (zh) 一种开关磁阻电机共上管功率变换器快速换相的控制方法
WO2014188757A1 (ja) 回転電機の回転子、回転電機、電動駆動システム、及び電動車両
JP2006149031A (ja) 車両駆動システムおよびそれを備える車両
CN108808907A (zh) 一种电动车用开关磁阻电机及电机控制系统
JP2003348809A (ja) 磁石内包式インナーロータ型モータ
CN111211629A (zh) 一种异形转子极双凸极无刷直流励磁电机和发电机
CN217036852U (zh) 一种交流磁阻电机
KR102111851B1 (ko) 고정자 권선 회로 및 이를 포함하는 돌극성 전기 모터
CN116613951B (zh) 一种分段定子永磁辅助摆线磁阻电机及其控制方法
KR101538494B1 (ko) 스위칭 릴럭턴스 모터 제어 장치
KR102564286B1 (ko) 에너지 변환 장치
CN117394740A (zh) 一种传统式绕组的新型开关磁阻电机功率变换器及其控制方法
CN114389486A (zh) 一种用于混合励磁双凸极电机的换相误差补偿方法
CN113572281A (zh) 一种低速大扭矩电机定子
CN2742665Y (zh) 吸尘器用直流无刷电机
CN111884366A (zh) 一种具有变气隙极翼的转子铁芯及开关磁阻电机

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16897722

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16897722

Country of ref document: EP

Kind code of ref document: A1