Term " first ", " second ", " third " " in description and claims of this specification and above-mentioned attached drawing
The (if present)s such as four " are the objects for distinguishing similar, and specific sequence or precedence are described without being used for.It should manage
The data that solution uses in this way can be interchanged in the appropriate case, so that the embodiment of the present invention described herein for example can be to remove
Sequence other than those for illustrating or describing herein is implemented.In addition, term " comprising " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, production
Product or equipment are not necessarily limited to those steps or unit clearly listed, but may include not listing clearly or for this
The intrinsic other steps of processes, method, product or equipment or unit a bit.
A kind of composition frame chart of governing system of switched reluctance machines is as shown in Figure 1, the governing system generally comprises switch
Reluctance motor 100, power inverter 200, controller 300 and position sensor 400.About each component units of governing system it
Between control process, in the range of the understanding of those skilled in the art, no further details here.
The embodiment of the present invention provides a kind of switched reluctance machines, which is three-phase switch reluctance machine, is wrapped
Housing and field spider and salient pole stator in housing are included, ABC three-phase windings are wound on the tooth of stator.
Preferably, each phase in ABC three-phase windings includes at least three exits, is drawn including two ends
End, positioned at winding both ends, further includes at least one middle part exit, which is located at a certain position among winding,
In this way, when by a certain exit in middle part and one of end exit access circuit, then each phase winding only has part to lead to
Electricity work, and during by two end exits access circuits, then each phase winding whole energization work, so as to fulfill to the shape that works
The adjusting of state.
For example, each phase in ABC three-phase windings is the three-phase windings for having midpoint, middle part exit is and winding
Midpoint is connected, then winding can all access circuit and work, can also be with it corresponding to the normal operating conditions of motor
Half access circuit works, corresponding to motor assist working condition.ABC three-phase windings can be arranged to include multiple middle parts
Exit, the working condition of such motor then can there are many gears to adjust.
Preferably, switched reluctance machines can be the default sub-motor of outer rotor in the present embodiment, wherein, as shown in Fig. 2, fixed
Attached bag is included around circumferentially spaced multiple stator tooths and the stator slot between stator tooth;Rotor is included around circumferentially disposed
Multiple rotor tooths and the rotor slot between rotor tooth.The rotor 410 can be that outer rotor, the stator 420 of 16 poles are 24 slots
Inner stator.
The sequence coiling that as shown in Fig. 2, ABCABC can be used in the default sub-motor of 16 pole external-rotor, 24 slot ..., totally 24 around
Set of pieces, three-phase windings respectively have the elements of winding of 8 series connection, and the element of winding using more insulated copper wires and around will thoroughly do away with edge more
Copper wire is split into two halves, the elements of winding of such 8 series connection, but formed and around two parts, altogether there are two line head end and two lines
Tail end, using one pair of which line head end and line tail end as the end exit for the phase winding, then by another pair line head end and line
Tail end and after connecing, as the midpoint exit of the phase winding, therefore ABC three-phase windings be have the three-phase of midpoint exit around
Group.Certainly, in other embodiments, each single item in three-phase windings is also provided with multiple middle part exits, and extraction location
It is also not necessarily limited at the midpoint of winding, in the range of the understanding of those skilled in the art, details are not described herein again.
Referring to Fig. 3, Fig. 3 is the partial structurtes enlarged drawing of switched reluctance machines in Fig. 2.Preferably, it is fixed in the present embodiment
The ratio between the slot bottom width L10 of son and the width L8 of stator tooth are 1~1.25, and groove depth D1 is 2~4 times of facewidth L8.This design can
To ensure the stock utilization of motor height, vibrations and noise are small.This is because switched reluctance machines do not use permanent magnet, only make
With iron core and copper wire, when its copper consumption is suitable with iron, the stock utilization highest of motor.And switched reluctance machines are determined
When the slot bottom width of son and the width ratio of stator tooth are 1, it is believed that its copper consumption is suitable with iron, slot bottom width and stator
The width ratio of tooth is more than 1, then can put more copper wire.But if the width of slot bottom width and stator tooth is than excessive, when groove depth is
At 2~4 times of the facewidth, it is meant that the width of stator tooth is too narrow, and after winding is powered on tooth, stator and rotor are in strong magnetic pull
Under effect, vibrations and noise are easily generated.The value range of the width ratio of the groove depth of stator of the present invention, tooth and slot, effectively ensures
The stock utilization of motor is high namely improves the power density of motor, and inhibit vibrations and noise.
Preferably, the width L6 of the width of rebate L7 of outer rotor and rotor tooth meets:L7/L6 is 1~0.75, and groove depth D2 is
20~30 times of air gap delta between rotor 410 and stator 420.This structure design of rotor and the slot bottom width L10 of stator are with determining
The ratio between width L8 of sub- tooth is 1~1.25, and 2~4 times of the design that groove depth D1 is facewidth L8 matches, and leads to present invention switch magnetic
Hinder motor with the ratio between maximum induction Lmax and minimum inductance Lmin Lmax/Lmin values it is bigger than Conventional switched reluctance motor must
More, inductance of the invention is than up to 6~8, and Conventional switched reluctance motor can only achieve 2.5~4.5 or so.Due to switching magnetic
Hinder the output torque of motorInductance is than high meaningGreatly, the output torque of motor is with regard to big, also
The power density of motor is improved again.Wherein, the width of the air gap delta between rotor and stator can be designed as in the present embodiment
δ=(0.25~0.5) mm.
Further, in order to improve the power density of motor, the winding production in the present embodiment on the adjacent stators tooth of stator
Raw magnetic direction is compared to traditional winding and leads on the contrary, referring to Fig. 4, Fig. 4 is the Distribution of Magnetic Field schematic diagram of stator winding
Method for electrically, the magnetic direction of the winding on adjacent stators tooth is identical, and each winding is made to independently form a small magnetic field, please refers to figure
5, Fig. 5 be the Distribution of Magnetic Field figure of single winding in prior art method of accessing;The electricity of the winding of adjacent stators tooth in the present embodiment
Direction is flowed on the contrary, so that the magnetic direction of adjacent winding generation is opposite;This kind of method of accessing can make between adjacent stators winding
Magnetic field is collectively formed, such structure can improve magnetic density, reluctance torque is made to become larger, and then improve the power density of motor.
The step mode of this kind of winding is not only applicable to the electric machine structure of 16 pole, 24 slot in the present embodiment, and it is (8 to be equally applicable to rotor
× n) pole rotor, stator is the electric machine structure of the stator (wherein, n is positive integer more than or equal to 2) of (12 × n) slot.
Curve that the inductance of conventional motors changes with corner as shown in fig. 6, there are the constant minizone of inductance, the sectionDo not generate torque.In order to reduce the section, the utilization rate of motor, each rotor tooth of rotor of the present invention are improved
Both sides be designed as unsymmetric structure, for example the angle design of the two of rotor tooth crown is for different angles etc..Then motor
The curve that inductance changes with cornerSection become smaller or even disappear.And at least one of two crowns of rotor tooth
It can be designed as obtuse angle.
It is further preferred that also referring to Fig. 7, Fig. 7 is the enlarged drawing of rotor toothing first preferred embodiment, this reality
The crown 4101 applied in two crowns of the rotor tooth in example is designed to obtuse angle, another crown 4102 be designed as acute angle or
Person right angle.Wherein, the depth D3 at rotor crown obtuse angle can be 1~2 times of air gap delta, and the width D 4 at rotor crown obtuse angle can be with
1/10~1/5 of width L6 for rotor tooth, can be significantly if motor is sequentially powered to three-phase windings by the direction at obtuse angle
Reduce the noise of motor.
In addition, in other embodiments, two crowns of rotor tooth can also be designed as obtuse angle, be designed as acute angle or
Person's acute angle and the structure type of right angle collocation, as long as the both sides for ensureing rotor tooth are unsymmetric structure.Further referring to
Fig. 8-Figure 10, Fig. 8 are the enlarged drawings of the second preferred embodiment of rotor toothing, and Fig. 9 is rotor toothing third preferred embodiment
Enlarged drawing and Figure 10 be the 4th preferred embodiment of rotor toothing enlarged drawing;Wherein, rotor tooth in Fig. 8 embodiments
Both sides crown one is arc structure 4101, another is top rake structure 4102, and top rake position forms two obtuse angles;Fig. 9 is implemented
The both sides crown of rotor tooth one is acute angle or right-angle structure 4101 in example, another is prominent horn structure 4102, and
The both sides crown of rotor tooth one is acute angle or right-angle structure 4101 in Figure 10 embodiments, and it is recessed that another crown is nearby equipped with one
The structure 4102 of slot.The structure of several rotor tooths is only listed above, and the purport that the present invention protects is that the both sides of rotor tooth are
Unsymmetric structure.Certainly, in other embodiments, can also herein will not enumerate there are many rotor toothing changed.
1 and Figure 12 are please referred to Fig.1, Figure 11 is the curve graph that inductance changes with corner in the prior art, and Figure 12 is the present invention
The curve graph that the inductance of switched reluctance machines crown structure changes with corner, it is obvious that the crown design structure in the present invention,
The curve that inductance changes with cornerSection become smaller (figure label X be position) or even disappear, i.e., do not generate torque
Section very little even disappear, from greatly enhancing the magnetic flux utilization rate of motor, and then the output for increasing motor turns
Square.
Preferably, filler can also be set inside the notch of rotor slot or rotor slot, to reduce the resistance of the air of rotor
Power.The filler (covering) needs to be the exhausted magnetic material that insulate, for example plastics, fiberglass or composite material etc..
Also referring to Figure 13 and Figure 14, Figure 13 and Figure 14 are the schematic diagrames of two kinds of filler setting structures, wherein, Figure 13
It is the schematic diagram for the notch that covering is covered on rotor slot, Figure 14 is the structure diagram that filler is filled in rotor slot.
Covering 500 can be the banded structure for being pasted onto 430 notch of rotor slot in Figure 13, and covering 500 can be one
It is whole to be covered in all rotor slots 430 of entire rotor, can also be segmental structure covering part rotor slot 430, in ability
In the range of the understanding of field technique personnel, no further details here.
Filler 500 preferably fills and leads up rotor slot 430 to be filled in voussoir in rotor slot 430 in Figure 14.In filler
500 when being filled in rotor slot, and be connected smoothly (figure between filler 500 and acute angle or the rotor tooth of right angle crown structure
It is marked in 14 at 510 positions);And it (is marked in Figure 14 by cambered surface between filler 500 and the rotor tooth of obtuse angle crown structure
At 520 positions) transition connection.It can be ensured by seamlessly transitting structure connection between this filler 500 and both sides rotor tooth
The whole lateral surface of rotor is smooth structure, achievees the purpose that reduce air drag to the greatest extent.
Further, in order to which filler 500 is allow reliably to be embedded in corresponding rotor slot, in the side of rotor tooth
On the locating slot (being not marked in figure) that can be provided with, correspondingly, the side of filler 500 is equipped with to be adapted with positioning slot structure
Positioning protrusion 530, the cooperation of the positioning protrusion 530 and locating slot realizes that the clamping to filler 500 positions, and then ensures filling
Object 500 is reliably embedded in corresponding rotor slot.Certainly, a kind of locator protrusions of arc structure is only illustrated in Figure 14
530, it is, of course, also possible to for dovetail configuration etc., as long as can ensure that filler 500 can be stablized inlays or be connected to rotor slot
It is interior, it will not enumerate herein.
In addition the present invention also provides a kind of control system of switched reluctance machines, it is switching magnetic-resistance to please refer to Fig.1 5, Figure 15
The composition frame chart of electric machine control system;The system includes switched reluctance machines 510 and driver 520, wherein switched reluctance machines
510 can be the switched reluctance machines of previous embodiment description.
The driver 520 includes at least working condition selecting module 521, which is used to select
Three-phase windings be located between two end exits whole windings between end exit and midpoint exit or in
Part between point exit works, so that switched reluctance machines realize different torque outputs.
The working condition selecting module 521 include at least three first switches, three second switches, three thirds switch,
Three the first fly-wheel diodes, three the second fly-wheel diodes and three third fly-wheel diodes, wherein three first switches
Collector connect the anode of power supply, emitter connects an end exit of a corresponding phase winding respectively, and three second are opened
The collector of pass connects another end exit of a corresponding phase winding respectively, and emitter connects the cathode of power supply, three
The collector of third switch connects the midpoint exit of a corresponding phase winding respectively, and emitter connects the cathode of power supply, three
The cathode of first fly-wheel diode connects the collector of first switch that a corresponding phase winding is connected respectively, and anode connects respectively
The collector of second switch that a corresponding phase winding is connected is connect, the cathode of three the second fly-wheel diodes connects correspondence respectively
The emitter of first switch that is connected of a phase winding, anode connects the second switch that a corresponding phase winding is connected respectively
Emitter, the cathode of three three fly-wheel diodes connects the current collection of first switch that a corresponding phase winding is connected respectively
Pole, anode connect the collector of third switch that a corresponding phase winding is connected respectively.
For example, as shown in figure 16, above-mentioned working condition selecting module 521 may include 3 auxiliary powers switch V7,
V8, V9 and 3 auxiliary fly-wheel diode VD7, VD8, VD9, are back work state when auxiliary power switch participates in work;It is auxiliary
It is normal operating conditions when helping the power switch to be stopped.
When ABC three-phase windings are the three-phase windings with midpoint (i.e. by taking the midpoint exit of winding as an example), V1, V2,
V3 is the upper bridge arm power switch of A, B, C three-phase windings respectively, and collector connects the anode of power supply Us;Its emitter connect respectively A,
B, the input terminal of C three-phase windings, and the cathode with fly-wheel diode VD4, VD5, VD6 is connected respectively, then by fly-wheel diode
The anode of VD4, VD5, VD6 connect the cathode of power supply Us.A, the output terminal of B, C three-phase windings connect respectively lower bridge arm power switch V4,
The collector of V5, V6, and the anode with fly-wheel diode VD1, VD2, VD3 is connected respectively, then by fly-wheel diode VD1,
The cathode of VD2, VD3 connect the anode of power supply Us.And the emitter of power switch V4, V5, V6 connect the cathode (power supply) of power supply Us.
So form the power driving circuit of three-phase switch reluctance machine;A, the midpoint exit of B, C three-phase windings is respectively with assisting work(
The collector of rate switch V7, V8, V9 are connected, and be connected respectively with the anode for assisting fly-wheel diode VD7, VD8, VD9, then
The cathode for assisting fly-wheel diode VD7, VD8, VD9 is connect to the anode of power supply Us.
During normal operating conditions, auxiliary power switch V7, V8, V9 shutdown is allowed to be stopped, three-phase switch reluctance machine is driven
V1~V6 power switch normal work of movement controller, can be such that A, B, C three-phase windings of three-phase switch reluctance machine all throw
Enter work;During back work state, V1~V3 and V7~V9 auxiliary power of three-phase switch reluctance machine drive control device is allowed to open
Normal work is closed, and power switch V4, V5, V6 shutdown are stopped, and make A, B, C three-phase windings of three-phase switch reluctance machine
1/2 number of turn winding is devoted oneself to work.During due to normal operating conditions, three-phase windings are all devoted oneself to work, and the total number of turns of motor is big, electricity
The torque that machine generates is big, and rotating speed is low;During back work state, motor only 1/2 number of turn participate in work, the torque of motor it is small but
Rotating speed is high;The two cooperation realizes two grades of electrodeless variable-speeds.
The drive control device 520 of the present embodiment three-phase switch reluctance machine can be when motor acquisition input speed, profit
With the position sensor of switched reluctance machines, the change rate that it is enabled to change in three-phase windings inductance with position angle,'s
Region carries out the power switch of corresponding three-phase windings switch control, realizes generator operation.
The drive control device 520 can control switched reluctance machines in normal operating conditions and back work according to rotating speed
It is run under state;During normal operating conditions, auxiliary power switch V7, V8, V9 shutdown is allowed to be stopped, three-phase switch reluctance machine
Drive control device V1~V6 power switch normal work, A, B, C three-phase windings that can make three-phase switch reluctance machine are complete
It devotes oneself to work in portion;During back work state, allow three-phase switch reluctance machine drive control device V1~V3 and V7~V9 auxiliary
Power switch works normally, and power switch V4, V5, V6 shutdown are stopped, and make A, B, C three-phase of three-phase switch reluctance machine
1/2 number of turn winding of winding is devoted oneself to work.During due to normal operating conditions, three-phase windings are all devoted oneself to work, total circle of motor
Number is big, and motor adapts to high-torque, rotating speed low state;During back work state, only 1/2 number of turn of motor participates in work, motor
Adapt to small torque high-speed state;The two cooperation realizes low-speed generator operation and the operation of high tacho generator.
Three-phase switch reluctance machine is as the outstanding advantages that generator is run in the present embodiment:Completely not due to tooth socket
The location torque that effect generates;In addition possess low-speed generator operation and high tacho generator operational mode, high efficiency power generation
The non-constant width in region.
Switched reluctance machines structure in the embodiment of the present invention effectively increases the power density of switched reluctance machines, reduces
The torque ripple and noise of switched reluctance machines have especially wide efficiency operation region.The switched reluctance machines do not have completely
There is the location torque generated due to slot effect, run as generator, the non-constant width in region of high efficiency power generation.
In addition, when working condition selecting module 521 selects the middle part lead-out wire of access winding other positions, it can also group
Different transforming gear forms is closed out, in the range of the understanding of people in the art, is no longer described in detail one by one herein.
Further, the embodiment of the present invention also provides a kind of switched reluctance machines of internal rotor outer stator structure, please refers to
Figure 17, Figure 17 are the switched reluctance machines of inner rotor core and its three-phase windings schematic diagram.Preferably, the switch in the embodiment
Reluctance motor for 16 poles with 16 rotor tooths internal rotor and with 24 slot external stator motors of 24 stator slots.Figure acceptance of the bid
Numbers 210 be stator, and 220 be rotor.
The sequence coiling that likewise, ABCABC can be used in 16 pole internal rotor, the 24 slot external stator motor ..., totally 24 around
Set of pieces, three-phase windings respectively have the elements of winding of 8 series connection, and the element of winding using more insulated copper wires and around will thoroughly do away with edge more
Copper wire is split into two halves, the elements of winding of such 8 series connection, but formed and around two parts, altogether there are two line head end and two lines
Tail end, using one pair of which line head end and line tail end as the end exit for the phase winding, then by another pair line head end and line
Tail end and after connecing, as the midpoint exit of the phase winding, therefore ABC three-phase windings be have the three-phase of midpoint exit around
Group.Certainly, in other embodiments, each single item in three-phase windings is also provided with multiple middle part exits, and extraction location
It is also not necessarily limited at the midpoint of winding, in the range of the understanding of those skilled in the art, details are not described herein again.
Also referring to Figure 18, Figure 18 is the partial structurtes enlarged drawing of switched reluctance machines in Figure 17.Preferably, this implementation
The ratio between width L1 of the width of rebate L2 of stator and stator tooth is 1~1.25 in example, and groove depth D5 is 2~4 times of facewidth L1.This sets
Meter can ensure that the stock utilization of motor is high, and vibrations and noise are small.This is because switched reluctance machines do not use permanent magnet, only
Using only iron core and copper wire, when its copper consumption is suitable with iron, the stock utilization highest of motor.And switched reluctance machines
Stator width of rebate and stator tooth width ratio be 1 when, it is believed that its copper consumption is suitable with iron, width of rebate and
The width ratio of stator tooth is more than 1, then can put more copper wire.But if the width of width of rebate and stator tooth than excessive, works as slot
When being deeply 2~4 times of the facewidth, it is meant that the width of stator tooth is too narrow, and after winding is powered on tooth, stator and rotor are in strong magnetic
Under pulling force effect, vibrations and noise are easily generated.The value range of the width ratio of the groove depth of stator of the present invention, tooth and slot, effectively
Ensure the stock utilization height of motor namely improve the power density of motor, and inhibit vibrations and noise.
Preferably, the width L4 of the width of rebate L5 of outer rotor and rotor tooth meets:L5/L4 is 1~0.75, and groove depth D6 is
20~30 times of air gap delta between rotor 220 and stator 210.This structure design of rotor and the width of rebate L5 of stator are with determining
The ratio between width L4 of sub- tooth is 1~1.25, and 2~4 times of the design that groove depth D5 is facewidth L1 matches, and leads to present invention switch magnetic
Hinder motor with the ratio between maximum induction Lmax and minimum inductance Lmin Lmax/Lmin values it is bigger than Conventional switched reluctance motor must
More, inductance of the invention is than up to 6~8, and Conventional switched reluctance motor can only achieve 2.5~4.5 or so.Due to switching magnetic
Hinder the output torque of motorInductance is than high meaningGreatly, the output torque of motor is with regard to big, also
The power density of motor is improved again.Wherein, the width of the air gap delta between rotor and stator can be designed as in the present embodiment
δ=(0.25~0.5) mm.
In order to further improve the power density of motor, the winding in the present embodiment on the adjacent stators tooth of stator also uses
The opposite current control form of magnetic direction is generated, the correlation that specific field form and principle are asked in parameter above-described embodiment is retouched
It states, details are not described herein again.
It is a kind of schematic diagram of preferred inner rotor core to please refer to Fig.1 9, Figure 19, it is preferable that the rotor in the present embodiment
Tooth both sides crown is likewise designed as the different structure of angle, about the structure feature of rotor tooth crown, please refers to above-mentioned reality
The associated description in example is applied, details are not described herein again.
In addition, filler (figure label 600) can be equally set in rotor slot, and to reduce the air drag of rotor, figure
It has only been indicated in although and filler 600 is provided at one, should be that filler 600 is all set in all rotor slots.And it closes
In the technical characteristics such as the setting structure of filler 600 and material, the associated description in above-described embodiment is also please referred to, herein also
It is not repeated.
One optimum embodiment of inner rotor core motor
Switched reluctance machines in the present embodiment include field spider, salient pole stator and drive control device etc., wherein, turn
Son is 16 poles, stator is 24 slots.
It is 1/0.8 that the present embodiment, which takes the ratio between the width of rebate of stator and the width of stator tooth, and groove depth is 3 times of the facewidth.This
Design effectively ensures that the stock utilization of motor is high namely improves the power density of motor, and inhibit vibrations and noise.
The present embodiment three-phase switch reluctance machine, the ratio between the width of rebate angle of the rotor of 16 poles and the width of rotor tooth are
0.8, groove depth is 25 times of air gap delta.This design structure of rotor can make inductance than up to 7, and Conventional switched reluctance motor is only
2.5~4.5 or so can be reached.Due to the output torque of switched reluctance machinesInductance is than high meaningGreatly, the output torque of motor is just big namely significantly improved the power density of motor.
A crown in two crowns of each rotor tooth of rotor is designed to obtuse angle simultaneously, another is acute angle.
The curve that then inductance of motor changes with cornerSection become smaller or even disappear.If motor is suitable by the direction at obtuse angle
It is powered to three-phase windings to sequence, can also significantly reduce the noise of motor.
The width of air gap delta between the rotor of the present embodiment three-phase switch reluctance machine, stator is δ=0.25mm, rotor
The depth at tooth crown obtuse angle is 0.3mm, and the width at obtuse angle is the 1/6 of the width of rotor tooth.
ABC three-phase windings are wound on the tooth of the present embodiment stator, ABC three-phase windings are the three-phase windings for having midpoint.Three
The distribution sequence of phase winding is respectively A-B-C-A-B-C-A-B-C-A-B-C-A-B-C-A-B-C-A-B-C-A-B-C- totally 24
The element of winding, three-phase windings respectively have the element of winding of 8 series connection;The element of winding using more insulated copper wires and around will thoroughly do away with more
Edge copper wire is split into two halves, the elements of winding of such 8 series connection, but formed and around two parts, altogether there are two line head end and two
Line tail end, using one pair of which head end and tail end as the exit for the phase winding, then by another pair head end, tail end and after connecing,
As the midpoint exit of the phase winding, therefore ABC three-phase windings are the three-phase windings for having midpoint.
In order to reduce air drag and noise, wedge is inserted in the slot of rotor for three-phase switch reluctance machine in the present embodiment
Block, the material of voussoir can be plastic and glass fibrous composite etc..
(6 are please referred to Fig.1 in the drive control circuit figure of the present embodiment three-phase switch reluctance machine), and V1, V2, V3 are respectively
A, the upper bridge arm power switch of B, C three-phase windings, collector connect the anode of power supply Us;Its emitter connects A, B, C three-phase respectively
The input terminal of winding, and the cathode with fly-wheel diode VD4, VD5, VD6 is connected respectively, then by fly-wheel diode VD4, VD5,
The anode of VD6 connects the cathode of power supply Us.A, the output terminal of B, C three-phase windings meets lower bridge arm power switch V4, V5, V6 respectively
Collector, and the anode with fly-wheel diode VD1, VD2, VD3 is connected respectively, then by fly-wheel diode VD1, VD2, VD3
Cathode connects the anode of power supply Us.And the emitter of power switch V4, V5, V6 connect the cathode (power supply) of power supply Us.So form
The power driving circuit of common three-phase switch reluctance machine;A, the midpoint exit of B, C three-phase windings, is opened respectively with auxiliary power
The collector for closing V7, V8, V9 is connected, and is connected respectively with the anode for assisting fly-wheel diode VD7, VD8, VD9, then will be auxiliary
The cathode of fly-wheel diode VD7, VD8, VD9 is helped to connect the anode of power supply Us.
The drive control device of three-phase switch reluctance machine increases 3 auxiliary power switches and 3 auxiliary in the present embodiment
Fly-wheel diode is back work state, when auxiliary power switch is stopped, for just when auxiliary power switch participates in work
Normal working condition.During normal operating conditions, auxiliary power switch V7, V8, V9 shutdown is allowed to be stopped, three-phase switch reluctance machine
Drive control device V1~V6 power switch normal work, A, B, C three-phase windings that can make three-phase switch reluctance machine are complete
It devotes oneself to work in portion;During back work state, allow three-phase switch reluctance machine drive control device V1~V3 and V7~V9 auxiliary
Power switch works normally, and power switch V4, V5, V6 shutdown are stopped, and make A, B, C three-phase of three-phase switch reluctance machine
1/2 number of turn winding of winding is devoted oneself to work.During due to normal operating conditions, three-phase windings are all devoted oneself to work, total circle of motor
Number is big, and the torque that motor generates is big, and rotating speed is low;During back work state, only 1/2 number of turn of motor participates in work, motor
Torque is small but rotating speed is high;The two cooperation realizes two grades of electrodeless variable-speeds.
During due to normal operating conditions, three-phase windings are all devoted oneself to work, and the total number of turns of motor is big, the torque that motor generates
Greatly, rotating speed is low.During normal operating conditions, it can ensure slow-speed of revolution section, motor has a high efficiency platform, and rotating speed is close to high velocity
Efficiency is lower gradually, and controller is switched to back work state according to speed feedback at this time.
During back work state, only 1/2 number of turn of motor participates in work, and the torque of motor is small but rotating speed is high.Backman
When making state, motor can ensure high rotating speed section (4000~9000 revs/min), and motor has high efficiency platform, although when turning
The nearly low regime efficiency of quick access is lower gradually, but controller according to speed feedback, and is switched to normal operating conditions at this time, obtains low
The high efficiency platform of fast area's (0~4000 rev/min).As it can be seen that the cooperation of two kinds of working conditions realizes two grades of electrodeless variable-speeds, expand
The high efficiency region in motor real work region is opened up.Therefore, the actual efficiency platform of the present embodiment three-phase switch reluctance machine
Many wider than Conventional switched reluctance motor.
The present embodiment switched reluctance machines efficiency curve is specified in 125-50% nominal speed ranges and in 50-300%
In torque range, efficiency is not less than 86%, peak efficiency 97%.
Switched reluctance machines structure in the embodiment of the present invention effectively increases the power density of switched reluctance machines, reduces
The torque ripple and noise of switched reluctance machines have especially wide efficiency operation region.
The present invention also provides a kind of wheel, which is driven using switched reluctance machines, and the switched reluctance machines is such as
Switched reluctance machines described in preceding embodiment.
Preferably, which can include hub-type switched reluctance machines, i.e., driven using hub-type switched reluctance machines,
The hub-type switched reluctance machines are the electric machine structure of outer rotor inner stator.
Further, the present invention also provides a kind of electric vehicle, the electric vehicle can be electric vehicle, battery-operated motor cycle or
Electric bicycle etc..The electric vehicle is pure electric vehicle or hybrid electric vehicle, and the wheel of the electric vehicle is driven using switched reluctance machines,
The switched reluctance machines are also the switched reluctance machines as described in preceding embodiment.Preferably, the driving wheel of the electric vehicle can be adopted
With the car wheel structure in above-described embodiment, i.e. wheel includes hub-type switched reluctance machines, utilizes hub-type switched reluctance machines
Drive vehicle wheel rotation.
It should be noted that the above various embodiments belongs to same inventive concept, the description of each embodiment emphasizes particularly on different fields,
Not detailed part, can refer to the description in other embodiment described in separate embodiment.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium can include:Flash disk, read-only memory (Read-Only Memory, ROM), random access device (Random Access
Memory, RAM), disk or CD etc..
The switched reluctance machines and system provided above to the embodiment of the present invention are described in detail, used herein
Specific case is expounded the principle of the present invention and embodiment, to understand the explanation of above example is only intended to helping
The method and its core concept of the present invention;Meanwhile for those of ordinary skill in the art, thought according to the present invention is having
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the present invention
Limitation.