CN102545519B - Reluctance motor for alternating-current continuous torque permanent magnet switch and excited control method thereof - Google Patents

Reluctance motor for alternating-current continuous torque permanent magnet switch and excited control method thereof Download PDF

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CN102545519B
CN102545519B CN201110456284.1A CN201110456284A CN102545519B CN 102545519 B CN102545519 B CN 102545519B CN 201110456284 A CN201110456284 A CN 201110456284A CN 102545519 B CN102545519 B CN 102545519B
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salient pole
stator
rotor
pole
salient
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CN102545519A (en
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戴珊珊
陆晓峰
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Nanjing Yiti Technology Co ltd
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Abstract

The present invention relates to a kind of reluctance motor for alternating-current continuous torque permanent magnet switch and excited control method thereof, " field excitation salient pole to " on this motor stator and epitrochanterian " permanent magnetism salient pole to " is all symmetry axis with rotation axis, ring-type symmetrical equilibrium is arranged, each field excitation salient pole is to each other in Magnetic isolation state, the right magnet limbs of adjacent permanent magnet salient pole is different, during rotor turns, permanent magnetism salient pole to salient pole energy and field excitation salient pole to salient pole successively " strictly just to ", formed " the shortest closed magnetic circuit " between " the permanent magnetism salient pole to " of " strictly just to " and " field excitation salient pole to ", magnetic torque active force disappears each other, all the other are not in " strictly just to " permanent magnetism salient pole pair and field excitation salient pole are to then there is magnetic torque active force each other.Excited control method of the present invention is, once occur that " strictly just to " namely changes the right exciting current direction of this field excitation salient pole, make this field excitation salient pole to again to permanent magnetism salient pole to formation magnetic torque active force, judge to be realized " strictly just to " by the position transducer be arranged on stators and rotators.

Description

Reluctance motor for alternating-current continuous torque permanent magnet switch and excited control method thereof
Technical field
The present invention relates to switched reluctance motor technical field, particularly relate to a kind of reluctance motor for alternating-current continuous torque permanent magnet switch and excited control method thereof.
Background technology
Conventional switched reluctance motor is the rotor with salient pole being made up of motor laminated core, and motor stator still adopts magnet exciting coil and laminated core knot to form salient pole, when input stimulus electric current in magnet exciting coil, stator core then generates magnetic pole, and this pole pair of inducting is arranged on epitrochanterian salient pole and forms magnetic torque.When by certain sequential, successively to the stator exciting coil input stimulus electric current circumferentially distributed, stator inducts magnetic pole also successively to permanent magnet formation magnetic torque on rotor, and then drive rotor rotates to a fixed-direction.This type of switched reluctance motor controls by phase sequence, so only have a pair stator salient pole on pole pair rotor of inducting to form magnetic torque in each action cycle, meanwhile, other magnetic pole of inducting of stator does not present magnetic polarity, also magnetic torque can not be produced to salient pole on rotor, therefore rotor with salient pole and the stator torque of magnetic force of inducting between magnetic pole is that pulsating is discontinuous, and the utilization rate of equipment and installations of this type of switched reluctance motor is lower.
Summary of the invention
The object of the invention is to follow double-salient-pole switched reluctance motor " magnetic resistance is minimum " this general principle, rotor arranges " permanent magnet salient pole to " and " field excitation salient pole pair; with the closed magnetic circuit shortened between energized stator salient pole with rotor permanent magnet salient pole and the interference eliminated between excitation phase and improve electromagnetic conversion efficiency for design object, to the carrying out brand-new design rationally and effectively of traditional double salient pole switched reluctance motor of Magnetic isolation is each other set on stator.
Another object of the present invention is for provided new structure permanent-magnetic switching reluctance motor, adopt brand-new excited control method, make in this permanent-magnetic switching reluctance motor operation process, remain that a more than phase stator excitation salient pole pair and rotor permanent magnet salient pole are to being mutually in magnetic torque active state, thus obtained larger efficiency ratio and continuous torque.
For achieving the above object, technical scheme of the present invention is, this reluctance motor for alternating-current continuous torque permanent magnet switch, its formation includes stator, rotor, motor field frame, it is characterized in that: described stator by some field excitation salient poles to forming, field excitation salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, each field excitation salient pole between each other in Magnetic isolation state, described rotor by some permanent magnetism salient poles to forming, permanent magnetism salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, the right magnet limbs of adjacent permanent magnet salient pole is different, the salient pole axial width that on rotor, permanent magnetism salient pole the is right salient pole axial width right with field excitation salient pole on stator is identical, and during rotor rotation, by permanent magnetism salient pole on rotor, the rotation facade perpendicular to rotation axis that each salient pole is formed is overlapped to the facade perpendicular to rotation axis that each salient pole is formed with stator excitation salient pole, and any one rotor permanent magnet salient pole overlaps with the radial centre lines of any one stator excitation salient pole to two salient poles respectively accordingly to the radial centre lines energy of two salient poles.
In above-mentioned reluctance motor for alternating-current continuous torque permanent magnet switch technical scheme, described field excitation salient pole is formed by laminated core and magnet exciting coil, magnet exciting coil is wound in laminated core periphery, the two end portions that laminated core stretches out magnet exciting coil forms two salient poles, when inputting same directional current in magnet exciting coil, the magnetic polarity of these two salient poles is different; Described permanent magnetism salient pole is formed by two permanent magnets and a magnetic conductor, and magnetic conductor one end connects the N pole of a permanent magnet, and the other end of magnetic conductor connects the S pole of another permanent magnet, defines the permanent magnetism salient pole pair of a S pole and a N pole; Or described permanent magnetism salient pole is formed by a permanent magnet and two magnetic conductors, connects a magnetic conductor at this permanent magnet N pole place, connect another magnetic conductor at this permanent magnet S pole place, like this, also form the permanent magnetism salient pole pair of a N pole and a S pole.
In above-mentioned reluctance motor for alternating-current continuous torque permanent magnet switch technical scheme, field excitation salient pole on described stator is 6 or 8 or 10 or 12 or 14 or 16 or 18 to quantity, with field excitation salient pole in said stator to select a selected quantity one to one epitrochanterian permanent magnetism salient pole be 4 or 6 or 8 or 10 or 12 or 14 or 16 to quantity.
In technique scheme, stator " field excitation salient pole to " and rotor " permanent magnetism salient pole to " are the most basic work done unit of motor of the present invention.Stator excitation salient pole pair from rotor permanent magnet salient pole to all having the different salient pole of paired magnetic polarity, the magnetic polarity of two salient poles that rotor permanent magnet salient pole is right is changeless, and the magnetic polarity of two induced magnetism salient poles that stator excitation salient pole is right is then subject to the control of the magnet exciting coil sense of current and changes.From locus, the rotor permanent magnet salient pole circumferentially arranged is on all four with the same stator excitation salient pole circumferentially arranged to salient pole axial location and thickness to salient pole, in other words, the rotation facade of the salient pole that the facade at the salient pole that stator excitation salient pole is right is right with rotor permanent magnet salient pole overlaps, to ensure stator excitation salient pole to salient pole and rotor permanent magnet salient pole to salient pole axial location accurately consistent, stator salient poles and rotor with salient pole " strictly just to ".In rotor turns process, the right salient pole of each rotor permanent magnet salient pole can be right with each stator excitation salient pole successively salient pole " just to ", in other words, so-called " just to " shows, rotor permanent magnet salient pole overlaps with the radial centre lines of stator excitation salient pole to salient pole to the radial centre lines of salient pole.Here " radial centre lines " refers to from the motor rotation axis center of circle, through the ray of stator excitation salient pole or rotor permanent magnet salient pole arc section central point.Because from structure and installation dimension, motor of the present invention ensure that stator excitation salient pole is equal to salient pole radial centre lines center of circle angle with rotor permanent magnet salient pole to salient pole radial centre lines center of circle angle, thus ensure that the salient pole energy that all rotor permanent magnet salient poles are right and the right salient pole radially aligned of any one stator excitation salient pole.Stator excitation salient pole to salient pole and rotor permanent magnet salient pole to before salient pole " strictly just to ", two magnet limbs that stator excitation salient pole is right and right two magnet limbs of rotor permanent magnet salient pole different, stator excitation salient pole pair and rotor permanent magnet salient pole between there is magnetic attraction, when stator excitation salient pole is in " strictly just to " position to salient pole and rotor permanent magnet salient pole to salient pole, minimum air gap is only there is between the salient pole that stator excitation salient pole is right and the right salient pole of rotor permanent magnet salient pole, thus define the shortest magnetic loop, stator excitation salient pole pair and rotor permanent magnet salient pole are to being in adhesive stable state, control power supply when now to encourage to make the exciting current of this stator excitation salient pole to magnet exciting coil of short duration be zero, change the magnet exciting coil sense of current that this stator excitation salient pole is right immediately, the right magnet limbs of this stator excitation salient pole changes immediately, the magnetic polarity of stator excitation salient pole to salient pole of " strictly just to " changes over identical with the magnetic polarity of rotor permanent magnet salient pole to salient pole, now, this stator excitation salient pole to namely and rotor permanent magnet salient pole to forming repulsive force.Due to each stator excitation salient pole in motor of the present invention between each other in Magnetic isolation state, so each stator excitation salient pole controls being independently subject to encouraging the excitation controlling power supply, independently can change the magnetic polarity of its magnetic salient pole.Like this, in rotor turns process, each permanent magnetism salient pole epitrochanterian each field excitation salient pole pair to can scan successively also on " strictly just to " stator, when epitrochanterian permanent magnetism salient pole to be in two stator excitation salient poles between position time, the magnetic attraction that this rotor permanent magnet salient pole is right to the stator excitation salient pole that both can be subject to its direction of rotation front, i.e. " pulling force ", also can be subject to the right magnetic repulsion of its direction of rotation rear stator excitation salient pole, i.e. " thrust " simultaneously., and between the stator salient poles of traditional switched reluctance motor and rotor with salient pole, only there is magnetic attraction, i.e. " pulling force " in the torque source of " pulling force " and " thrust " herein motor rotor just.In addition, in motor of the present invention, rotor permanent magnet salient pole is to only there is not mutual torque power when the salient pole that its salient pole " strictly just to " stator excitation salient pole is right, and the just not right stator excitation salient pole of all the other salient poles pair and rotor permanent magnet salient pole between all obey " the shortest principle of magnetic circuit " of switched reluctance motor, rotor permanent magnet salient pole is to being all subject to the right magnetic attraction of its direction of rotation front stator excitation salient pole and the right magnetic repulsion of its direction of rotation rear stator excitation salient pole, namely in motor of the present invention, all the time maintain a more than rotor permanent magnet salient pole to the situation being subject to stator excitation salient pole near it right " draw and push away ".In addition, in motor of the present invention, be in the rotor permanent magnet salient pole pair of " strictly just to " position and stator excitation salient pole to only commutating gap not work done at electric current, as long as and rotor permanent magnet salient pole is to departing from this " strictly just to " position, the effect of stator excitation salient pole right " pulling in front and others push behind " near it namely can be subject to and work done.In motor rotor of the present invention one week rotational time, single stator excitation salient pole pair and rotor permanent magnet salient pole between power done time obtain increase, all stator excitation salient pole of motor pair and rotor permanent magnet salient pole between also the increasing widely total time of work done.In sum, motor of the present invention is in rotor swing circle, just because of the rotor permanent magnet salient pole pair of work done and the increase of stator excitation salient pole to quantity and the increase of power done time can be participated in, make motor of the present invention can obtain larger continuous torque and power output.
On technique scheme basis, the present invention provides the specific constructive form possessing technique scheme feature motor.
One of version:
Field excitation salient pole on this structure electric machine stator is to being eight, eight field excitation salient poles are to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, and the right S magnetic salient pole of each field excitation salient pole and N magnetic salient pole are axially arranged along rotation axis, eight field excitation salient poles between each other in Magnetic isolation state, described epitrochanterian permanent magnetism salient pole is to being six, six permanent magnetism salient poles are to taking motor rotation axis as symmetry axis, rotator seat periphery is arranged at along concentric ring-shaped symmetrical equilibrium, each permanent magnetism salient pole is formed by a strip magnetic conductor and two permanent magnets, strip magnetic conductor one end connects the N pole of a permanent magnet, the other end of strip magnetic conductor connects the S pole of another permanent magnet, the N pole salient pole that each permanent magnetism salient pole is right and S pole salient pole are axially arranged along rotation axis, and the right magnet limbs of adjacent permanent magnet salient pole is different, stator excitation salient pole overlaps to rotating the rotation facade that salient pole formed to the facade at salient pole and rotor permanent magnet salient pole, the right magnet exciting coil of eight field excitation salient poles is divided into four groups, and be in two field excitation salient poles on same diameter line to being same group, the magnet exciting coil serial or parallel connection that same group of field excitation salient pole is right, four groups of field excitation salient poles control being encouraged by four phase exciting currents respectively.
Version two:
This structure electric machine is to formation motor monomer by eight of one of said structure form motor stator excitation salient poles pair and six rotor permanent magnet salient poles, again the rotation axis of motor monomer such for two or more is axially connected, and the right locus of different motor monomer stator field excitation salient pole is identical, namely different motor monomer stator field excitation salient pole overlaps to the radial centre lines of salient pole, and different motor monomer rotor permanent magnet salient pole between the radial centre lines of salient pole around the rotation axis successively equidirectional anglec of rotation be zero degree to three ten degree.
Version three:
The rotor of this structure electric machine by motor inner rotary housing and even number permanent magnetism salient pole to forming, even number permanent magnetism salient pole is arranged along the equilibrium of motor inner rotary inner walls ring-type, the N pole salient pole that each permanent magnetism salient pole is right and S pole salient pole are axially arranged along rotation axis, the stator of this motor by pedestal and even number field excitation salient pole to forming, even number field excitation salient pole is to taking rotation axis as symmetry axis, be arranged at around pedestal symmetrical equilibrium, and each field excitation salient pole between each other in Magnetic isolation state, right two the magnetic salient poles of each field excitation salient pole are axially arranged along rotation axis, stator excitation salient pole rotates to salient pole the rotation facade formed with rotor permanent magnet salient pole to the facade at salient pole and overlaps, be in the magnet exciting coil serial or parallel connection that two stator excitation salient poles in same diametrical position are right, control is encouraged by same phase exciting current.
Version four:
The rotor of this structure electric machine is made up of cylindric magnetic conductor and six permanent magnet blocks, six permanent magnet blocks take rotation axis as symmetry axis, be arranged at cylindric magnetic conductor inwall symmetrical equilibrium, and the magnetic polarity of two adjacent permanent magnets block salient pole is different, two adjacent permanent magnets block is through cylindric magnetic conductor magnetic connection function, define permanent magnetism salient pole pair, cylindric magnetic conductor is fixedly connected with rotation axis through non-magnetic connecting plate, the stator of this structure electric machine by four field excitation salient poles to forming, each field excitation salient pole is to being made up of the magnet exciting coil of the laminated core and this laminated core periphery of coiling with two salient poles again, four field excitation salient poles are to taking rotation axis as symmetry axis, be arranged at stator seat periphery symmetrical equilibrium, four field excitation salient poles are to each other in Magnetic isolation state, four stator excitation salient poles rotate to salient pole the rotation facade formed with rotor permanent magnet salient pole to the facade at salient pole and overlap, each stator excitation salient pole is equal to center of circle angle between two permanent magnetism salient pole radial centre lines with rotor permanent magnet salient pole to center of circle angle between the radial centre lines of two salient poles, the right magnet exciting coil of four stator excitation salient poles encourages control by four phase exciting currents respectively, or the right magnet exciting coil of relative two the stator excitation salient poles in position is connected in series or in parallel mutually, control is encouraged by two-phase exciting current.
Version five:
The rotor of this structure electric machine is made up of rotator seat, cylindric magnetic conductor and six permanent magnets, rotation axis and rotator seat are fixed, rotator seat surrounds by cylindric magnetic conductor, six permanent magnets take rotation axis as symmetry axis, be arranged at cylindric magnetic conductor peripheral symmetrical equilibrium, and the magnetic polarity of two adjacent permanent magnets salient pole is different, two adjacent permanent magnets, through cylindric magnetic conductor magnetic connection function, forms permanent magnetism salient pole pair, the stator of this structure electric machine by four field excitation salient poles to forming, each field excitation salient pole is to being made up of the magnet exciting coil of the laminated core and this laminated core periphery of coiling with two salient poles again, four field excitation salient poles are to taking rotation axis as symmetry axis, be arranged at motor field frame inwall symmetrical equilibrium, four stator excitation salient poles rotate to salient pole the facade formed with rotor permanent magnet salient pole to the facade at salient pole and overlap, rotor permanent magnet salient pole is equal to center of circle angle between the radial centre lines of two salient poles with each stator excitation salient pole to center of circle angle between any two permanent magnetism salient pole radial centre lines, the right magnet exciting coil of four stator excitation salient poles encourages control by four phase exciting currents respectively, or the right magnet exciting coil of relative two the stator excitation salient poles in position is connected in series or in parallel mutually, control is encouraged by two-phase exciting current.
For achieving the above object, for above-mentioned reluctance motor for alternating-current continuous torque permanent magnet switch technical scheme and various version, the present invention gives a kind of excited control method, this excited control method the electric motor structure feature that is suitable for be, this motor stator by field excitation salient pole to forming, field excitation salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, each field excitation salient pole is to each other in Magnetic isolation state, this motor rotor by permanent magnetism salient pole to forming, permanent magnetism salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, the right magnet limbs of adjacent permanent magnet salient pole is different, the salient pole axial width that on the salient pole axial width that on rotor, permanent magnetism salient pole is right and stator, field excitation salient pole is right in opposite directions, and during rotor rotation, by permanent magnetism salient pole on rotor, the rotation facade perpendicular to rotation axis that each salient pole is formed is overlapped to the facade perpendicular to rotation axis that each salient pole is formed with stator excitation salient pole, stator excitation salient pole is equal to salient pole radial centre lines center of circle angle with rotor permanent magnet salient pole to salient pole radial centre lines center of circle angle, once certain permanent magnetism salient pole overlaps with the radial centre lines of any one field excitation salient pole to salient pole on stator to the radial centre lines of salient pole on rotor, namely the position transducer be individually fixed on rotor and stator produces a signal, this signal inputs to excitation and controls power supply, namely excitation control power supply controls the right magnet exciting coil electric current of this radial centre lines coincidence field excitation salient pole of short duration is zero, immediately to this magnet exciting coil input reverse current, namely this radial centre lines coincidence field excitation salient pole is made to change the magnetic polarity of salient pole, and other field excitation salient pole remains unchanged to magnet exciting coil electric current, until occur that another field excitation salient pole overlaps with the radial centre lines of permanent magnetism salient pole to salient pole to the radial centre lines of salient pole, this process moves in circles.
Above-mentioned motor excited control method, goes for the various reluctance motor for alternating-current continuous torque permanent magnet switchs given by the present invention.The feature of this excited control method is, on rotor each permanent magnetism salient pole to field excitation salient pole each on salient pole radial centre lines and stator to the angle coordinate between salient pole radial centre lines as encouraging the benchmark controlled.In the process that rotor rotates, with each permanent magnetism salient pole epitrochanterian, each field excitation salient pole on salient pole radial center line position and stator is scanned one by one to salient pole radial center line position respectively, when certain rotor permanent magnet salient pole overlaps with the radial centre lines of certain stator excitation salient pole to salient pole to the radial centre lines of salient pole, namely the position transducer be arranged between rotor and stator outputs signal to excitation and controls power supply, by excitation control Energy control and the exciting current of field excitation salient pole to magnet exciting coil that this radial centre lines is overlapped of short duration be zero, input reverse energization electric current immediately, namely this field excitation salient pole is made to change the magnetic polarity of salient pole, thus to rotor just departs from the permanent magnetism salient pole of " strictly just to " position to the turning moment forming magnetic repulsion, simultaneously to another close permanent magnetism salient pole on rotor to formation magnetic attraction, namely, when a certain rotor permanent magnet salient pole is N pole to salient pole, when rotor is by certain direction of rotation angular displacement, its front stator excitation salient pole is S to magnet limbs, and its rear stator excitation salient pole is N to magnet limbs, the N salient pole that now this rotor permanent magnet salient pole is right had both been subject to the thrust (repulsive force) of N pole on its direction of rotation rear stator excitation salient pole, also be subject to the pulling force (the suction-combining force) of its direction of rotation front stator excitation salient pole to S salient pole simultaneously, thus make rotor can at stator excitation salient pole under the thrust of magnetic salient pole and pulling force torque, certain angular displacement is created to direction of rotation.So constantly cyclically " push away " and " drawing " to constitute in rotor airgap a closed adhesive magnetic field and repel magnetic field, continuous drive rotor is by the rotation of certain direction of rotation.Torque field in this stator and rotor airgap, within one that at rotor permanent magnet salient pole, salient pole and stator excitation salient pole is overlapped to the radial centre lines of salient pole extremely short time, namely the rotor permanent magnet salient pole being in radial centre lines overlapping positions to and stator excitation salient pole between do not have outside torque field effect, all there is the effect of torque field in all the other angles, namely described " pushing away " power and " drawing " power act on same rotor permanent magnet salient pole on salient pole by different stator excitation salient pole to salient pole simultaneously, in other words, for rotor permanent magnet salient pole pair, can side by side be subject to from right " drawing " power of the stator excitation salient pole that its direction of rotation front is different with rear and " pushing away " power all the time, and occur time interval that stator excitation salient pole overlaps to salient pole radial centre lines to salient pole radial centre lines and rotor permanent magnet salient pole relative to stator excitation salient pole to act in torque field mode rotor permanent magnet salient pole concerning time period be very of short duration, like this, just continuous torque is defined between stator and rotor, thus improve torque and power greatly, also can make the very steady of motor rotation simultaneously, and then the useful life of motor can be improved.
Advantage of the present invention is,
1, the present invention takes the lead in introducing the concept of the stator " field excitation salient pole to " of permanent-magnetic switching reluctance motor and rotor " permanent magnetism salient pole to ", action condition between further investigated stator " field excitation salient pole to " and rotor " permanent magnetism salient pole to " and interactively, give the structural design dexterously of novel permanent magnetic switched reluctance motor, " the shortest principle of magnetic circuit " followed by Conventional switched reluctance motor is applied efficiently dexterously in the permanent-magnetic switching reluctance motor of new construction, shorten the length of the prerequisite closed magnetic circuit of switched reluctance motor, simultaneously stator " field excitation salient pole to " Magnetic isolation each other, the magnetic pole performance excited target of each " field excitation salient pole to " is made to control Energy control and independently change, like this, each " field excitation salient pole to " just can participate among rotor " permanent magnetism salient pole to " work done to greatest extent, and then make motor obtain larger continuous torque and power output.
2, the present invention gives the design existing switched reluctance motor being carried out to structure of modification, although given version is simple, but can create and be difficult to estimate actual effect, the General Promotion performance of existing switched reluctance motor, for the development of existing switched reluctance motor and extensive use provide realistic possibility.
3, the New structural electric motor that provides of the present invention and the structure of modification to existing switched reluctance motor, for adopting a kind of brand-new excited control method to lay a good foundation condition, has also expanded the technical field that motor excitation controls.
4, the motor given by the present invention is in conjunction with corresponding excited control method, permanent-magnetic switching reluctance motor is made to obtain very high torque, it is simple that excitation controls power supply, speed regulating control power supply cost is low, reliability is high, life-span is long, volume and weight reduces greatly, the high motor new varieties of cost performance and observable index, also be the motor of energy saving standard, can replacing now a large amount of electric tools, electric motor of automobile, household electrical appliances motor, industrial power and control motor etc., is the novel motor of great popularization.
5, complete machine structure modularized design, saves raw material, and adopts one-shot forming technique in a large number, can realize streamline production operation, substantially increase labor productivity.
Accompanying drawing explanation
Fig. 1 is that the stator excitation salient pole in the embodiment of the present invention one arranges structural representation to rotor permanent magnet salient pole to axial.
Fig. 2 is the embodiment of the present invention one perspective view.
Fig. 3 is the cutaway view of the embodiment of the present invention one.
Fig. 4 is the force diagram of the embodiment of the present invention one stator and rotor relative position one.
Fig. 5 is the force diagram of the embodiment of the present invention one stator and rotor relative position two.
The force diagram of Fig. 6 embodiment of the present invention one stator and rotor relative position three.
Stator excitation salient pole in Fig. 7 embodiment of the present invention two arranges structural representation to rotor permanent magnet salient pole to axial.
Fig. 8 is the perspective view of the embodiment of the present invention two.
Fig. 9 is the cutaway view of the embodiment of the present invention two.
Figure 10 is the perspective view of the embodiment of the present invention three.
Figure 11 is the embodiment of the present invention three front motor monomer structure cutaway view.
Figure 12 is the embodiment of the present invention three middle motor monomer structure cutaway view.
Figure 13 is the embodiment of the present invention three rear motor monomer structure cutaway view.
Figure 14 is the structure cutaway view in the embodiment of the present invention four.
Figure 15 is the A-A profile of Figure 14.
Figure 16 is the structure cutaway view that the embodiment of the present invention five stator and rotor are in certain position.
Figure 17 is the structure cutaway view that the embodiment of the present invention five stator and rotor are in another position.
Figure 18 is the structure cutaway view that the embodiment of the present invention six stator and rotor are in certain position.
Figure 19 is the structure cutaway view that the embodiment of the present invention six stator and rotor are in another position.
Figure 20 is that the embodiment of the present invention one each phase line energising sequential and tradition " 8 to 6 " each phase line of switched reluctance motor are energized the comparison diagram of sequential.
In above accompanying drawing, 21 is the right magnet exciting coils of stator excitation salient pole, 22 is the right salient poles of stator excitation salient pole, 23 is the right permanent magnetism salient poles of permanent magnetism salient pole, 24 is strip magnetic conductors, 25 is motor rotation axis, 26 is rotor axle beds, 27 is the right permanent magnetism salient poles of permanent magnetism salient pole, 28 is the right salient poles of stator excitation salient pole, 31 is the right magnet exciting coils of stator excitation salient pole, 32 is the right rear end permanent magnetism salient poles of permanent magnetism salient pole, 33 is the right front end permanent magnetism salient poles of permanent magnetism salient pole, 34 is the right iron cores of stator excitation salient pole, 35 is that stator excitation salient pole is to rear end salient pole, 36 is that stator excitation salient pole is to front end salient pole, 37 is the right strip magnetic conductors of epitrochanterian permanent magnetism salient pole, 38 is rotor axle beds, 39 is rotation axiss, 41 is the right magnet exciting coils of stator excitation salient pole, 42 is the right salient poles of stator excitation salient pole, 43 is the right magnetic conductor salient poles of rotor with salient pole, 44 is the right permanent magnets of rotor with salient pole, 45 is rotation axiss, 46 is rotor axle beds, 47 is the right magnetic conductor salient poles of rotor with salient pole, 48 is the right salient poles of stator excitation salient pole, 51 is the right magnet exciting coils of stator excitation salient pole, 52 is the right iron cores of stator excitation salient pole, 53 is the right permanent magnets of rotor with salient pole, 54 is rotor with salient pole magnetic conductor salient poles to rear end, 55 is rotor with salient pole magnetic conductor salient poles to front end, 56 is that stator excitation salient pole is to rear end salient pole, 57 is that stator excitation double-salient-pole is to front end salient pole, 58 is rotor axle beds, 59 is rotation axiss, 71 is magnetic conduction rotational shells, 72 is permanent magnetism salient poles, 73 is the right magnet exciting coils of stator excitation salient pole, 74 is the right iron cores of stator excitation salient pole, 75 is rotation axis bearings, 76 is rotation axiss, 77 is stator base, 78 is the right salient poles of stator excitation salient pole, 81 is cylindric magnetic conductors, 82 is permanent magnet salient poles, 83 is the right salient poles of field excitation salient pole, 84 is the right magnet exciting coils of field excitation salient pole, 85 is stator seats, 91 is motor field frames, 92 is the right magnet exciting coils of field excitation salient pole, 93 is the right salient poles of field excitation salient pole, 94 is permanent magnet salient poles, 95 is cylindric magnetic conductors, 96 is rotator seats, 97 is rotation axiss.
Embodiment
Embodiment one:
In the present embodiment, stator excitation salient pole is to being eight, and rotor permanent magnet salient pole is to being six, and two salient poles that stator excitation salient pole is right and right two salient poles of rotor permanent magnet salient pole are all axially arrange, as shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3.
In the present embodiment, by eight stator excitation salient poles to rotation axis axis for symmetry axis, be fixed on a non-magnetic cylinder inwall symmetrical equilibrium, and right two salient poles of each stator excitation salient pole are axially arranged along rotation axis, and six rotor permanent magnet salient poles to rotation axis axis for symmetry axis, be fixed on non-magnetic rotator seat, and right two salient poles of each rotor permanent magnet salient pole are axially arranged along rotation axis symmetrical equilibrium.Design and all will ensure that rotor permanent magnet salient pole is consistent with the axial location of stator excitation salient pole to salient pole to salient pole with assembling, namely stator excitation salient pole overlaps with the rotation facade of rotor permanent magnet salient pole to salient pole to the facade at salient pole place, stator excitation salient pole forms one group to A and stator excitation salient pole to E, stator excitation salient pole forms one group to B and stator excitation salient pole to F, stator excitation salient pole forms one group to C and stator excitation salient pole to G, stator excitation salient pole forms a group to D and stator excitation salient pole to H, often organize two right magnet exciting coil serial or parallel connections of stator excitation salient pole, like this, the magnetic polarity often organizing stator excitation salient pole right can change simultaneously.Like this, by changing the sense of current being input to four groups of stator excitation salient pole centering magnet exciting coils respectively, realize these eight stator excitation salient poles the control respectively of magnet limbs.
The stator of the present embodiment and the interaction of rotor illustrate from following three feature locations:
One, as shown in Figure 4, does not occur that stator excitation salient pole overlaps to salient pole radial centre lines with rotor permanent magnet salient pole to salient pole radial centre lines, under this state, all stator excitation salient poles to all to the rotor permanent magnet salient pole near it to applying magnetic force.
They are two years old, as shown in Figure 5, stator excitation salient pole overlaps with the radial centre lines of rotor permanent magnet salient pole to I salient pole to the radial centre lines of A salient pole, stator excitation salient pole overlaps (each field excitation salient pole is named number see accompanying drawing 3 to the generation right with each permanent magnetism salient pole) to the radial centre lines of E salient pole with the radial centre lines of rotor permanent magnet salient pole to IV salient pole, stator excitation salient pole defines the shortest closed magnetic loop to A and rotor permanent magnet salient pole between I, stator excitation salient pole defines the shortest closed magnetic loop to E and rotor permanent magnet salient pole between IV, this moment, be separately positioned on the position sensor output signal on stators and rotators, this signal makes excitation control power supply to change stator excitation salient pole instantaneously to A and stator excitation salient pole to the electric current of magnet exciting coil in E, making exciting current of short duration is before this zero, rotor permanent magnet salient pole to I and IV depart from stator excitation salient pole A and E about 2 to 5 is spent time, excitation controls power supply makes stator excitation salient pole commutate to the electric current of magnet exciting coil in A and E.In figure 5, stator excitation salient pole both also existed magnetic repulsion to I and rotor permanent magnet salient pole to IV to rotor permanent magnet salient pole to B and stator excitation salient pole to F, also to V, magnetic attraction is also existed to II and rotor permanent magnet salient pole to rotor permanent magnet salient pole, stator excitation salient pole both also existed magnetic repulsion to II and rotor permanent magnet salient pole to V to rotor permanent magnet salient pole to C and stator excitation salient pole to G, also to VI, magnetic attraction is also existed to III and rotor permanent magnet salient pole to rotor permanent magnet salient pole, and stator excitation salient pole also exists magnetic repulsion to III and rotor permanent magnet salient pole to VI to rotor permanent magnet salient pole to H to D and stator excitation salient pole.
They are three years old, as shown in Figure 6, after rotor continues to rotate about 3 degree, stator excitation salient pole changes into N pole to the magnetic polarity of A salient pole by original S pole, and stator excitation salient pole changes into S pole to the magnetic polarity of E salient pole by original N pole, make stator excitation salient pole start to be formed to rotor permanent magnet salient pole to I and rotor permanent magnet salient pole to the repulsive force of VI to A and stator excitation salient pole to E, in above description, each field excitation salient pole to the right code name name of each permanent magnetism salient pole see accompanying drawing 3)
When stator A and stator E experiences above-mentioned three steps of pole change, other stator excitation salient pole is to still remain the magnetic force right to rotor permanent magnet salient pole near it, until rotor permanent magnet salient pole overlaps to B salient pole radial centre lines with stator excitation salient pole to II salient pole radial centre lines, rotor permanent magnet salient pole also overlaps to F salient pole radial centre lines with stator excitation salient pole to V salient pole radial centre lines, this moment, the position transducer be arranged between stator and rotor again outputs signal to excitation and controls power supply, made before this stator excitation salient pole to B and stator excitation salient pole of short duration to magnet exciting coil exciting current in F be zero, even if change direction with exciting current.Stator excitation salient pole repeats previous stator excitation salient pole to A and stator excitation salient pole to the process of E to B and stator excitation salient pole to F, and this process moves in circles.Position transducer set between stator with rotor can ensure once certain rotor permanent magnet salient pole overlaps to salient pole radial centre lines with certain stator excitation salient pole to salient pole radial centre lines, namely position transducer controls electric current conveying signal to excitation, namely excitation control electric current first makes radial centre lines coincidence stator exciting coil electric current of short duration is zero, and electric current changes direction immediately.
Stator given by accompanying drawing 5 and rotor relative position state, show that other field excitation salient pole is to all existing for the right magnetic rotation active force of neighbouring permanent magnetism salient pole except stator excitation salient pole not to exist for rotor permanent magnet salient pole to I and rotor permanent magnet salient pole to except the rotating force of IV E A and stator excitation salient pole.From power done time, the time period that the salient pole that stator excitation salient pole is right and the right salient pole of rotor permanent magnet salient pole " strictly just to " form the shortest magnetic circuit is extremely of short duration, and other stator excitation salient pole is pair relative much longer with the power done time of rotor permanent magnet salient pole Thermodynamic parameters.The Interaction Force point of stator and rotor increases and increases with the interaction time is the basis that the present embodiment obtains larger motor continuous torque and power output.
The structural advantage of the present embodiment permanent-magnetic switching reluctance motor and excited control method, define larger continuous torque and power output, this point can also be confirmed from the contrast of the sequential chart of electric current added by the sequential chart of electric current added by the present embodiment permanent-magnetic switching reluctance motor each bar phase line and each bar phase line of traditional double salient pole switched reluctance motor.
The first half of accompanying drawing 20 is tradition " eight to six " double-salient-pole switched reluctance motor energising sequential chart.During single-phase conducting, for the four phase switch reluctance motors of " 8/6 pole ", known, its angle of flow is 15 °, when a certain salient pole of rotor and stator salient poles coincide, and now next phase or a upper phase energising, namely commutation, until again change to this phase, the just conducting of this phase.For traditional " 8/6 pole " switched reluctance machines, revolve at rotor turn around (namely 360 °), its single-phase angle of flow is:
θ a(opening)=θ b(opening)=θ c(opening)=θ d(opening)=90 °
θ a(pass)=θ b(pass)=θ c(pass)=θ d(pass)=270 °
Therefrom can find out, the coil angle of flow of traditional " 8/6 pole " switched reluctance machines is little.
The latter half of accompanying drawing 20 is the present embodiment permanent-magnetic switching reluctance motor energising sequential chart.
For the present embodiment permanent-magnetic switching reluctance motor, revolve turn around (namely 360 °) at rotor, its single-phase angle of flow is:
θ a(opening)=θ b(opening)=θ c(opening)=θ d(opening)=330 °
θ a(pass)=θ b(pass)=θ c(pass)=θ d(pass)=30 °
Therefrom can find out, the coil angle of flow of the present embodiment permanent-magnetic switching reluctance motor is very large,
Compare from total angle of flow.
For traditional " 8/6 pole " switched reluctance machines, revolve at rotor turn around (namely 360 °), its total angle of flow is:
θ always(opening)=θ a(opening)+θ b(opening)+θ c(opening)+θ d(opening)=360 °
θ always(pass)=θ a(pass)+θ b(pass)+θ c(pass)+θ d(pass)=1080 °
Therefrom can find out, total angle of flow of traditional " 8/6 pole " switched reluctance machines equals the angle that rotor rotates a circle, and the angle turned off is very large, controls the utilance of power supply and motor magnetoelectric converting part so very low to excitation, motor rotation shake is large, and torque exports low.
For the present embodiment permanent-magnetic switching reluctance motor, revolve turn around (namely 360 °) at rotor, its total angle of flow is:
θ always(opening)=θ a(opening)+θ b(opening)+θ c(opening)+θ d(opening)=1320 °
θ always(pass)=θ a(pass)+θ b(pass)+θ c(pass)+θ d(pass)=120 °
Therefrom can find out, the total angle of flow of the present embodiment permanent-magnetic switching reluctance motor is very large, so its power of motor volume ratio, Driving Torque and torque stability are far above transmission switched reluctance motor.
Embodiment two:
The present embodiment is substantially identical with the structure of embodiment one, as shown in accompanying drawing 7, accompanying drawing 8 and accompanying drawing 9.Difference is only that the right structure of rotor permanent magnet salient pole is different, and the present embodiment rotor permanent magnetism salient pole is to being be made up of one piece of permanent magnet 44 and two pieces of soft magnet materials 43,47.
The architectural feature of the present embodiment and excited control method, with embodiment one, do not repeat at this.
Embodiment three:
The present embodiment is the combination version of embodiment one or embodiment two structure, as shown in Figure 10.
The present embodiment is to forming a motor monomer by embodiment one or such eight the stator excitation salient poles of embodiment two pair and six rotor permanent magnet salient poles, again the rotation axis of three such motor monomers is axially connected, and the right locus of the stator excitation salient pole of three motor monomers is identical, namely different motor monomer stator field excitation salient pole overlaps to the radial centre lines of salient pole, and different motor monomer rotor permanent magnet salient pole between the radial centre lines of salient pole around the rotation axis successively equidirectional anglec of rotation be five degree.Accompanying drawing 11 gives the cutaway view being in most front layer motor monomer, and accompanying drawing 12 gives the cutaway view being in intermediate layer motor monomer, and accompanying drawing 13 gives the cutaway view being in final layer motor monomer.α angle in figure is the anglec of rotation of installing setting between the right salient pole radial centre lines of different motor monomer rotor permanent magnet salient pole, and α is 5 degree.Three motor monomers are so set, achieve the step angle of segmentation monomer motor.Stator exciting coil in every layer of motor monomer is controlled by four phase line excitation power supplies, position transducer is provided with between the stator of every layer of motor monomer and rotor, as long as there is stator excitation salient pole to overlap with the radial centre lines of rotor permanent magnet salient pole to salient pole to the radial centre lines of salient pole in every layer of motor monomer, (as in accompanying drawing 11, stator excitation salient pole overlaps with the salient pole radial centre lines of rotor permanent magnet salient pole to I (1) and IV (1) to the salient pole radial centre lines of A (1) and E (1)) namely this layer of position transducer output signal, controlling excitation power supply first makes the exciting current of stator excitation salient pole to A (1) and E (1) magnet exciting coil be zero, change the sense of current immediately, the magnetic polarity of stator excitation salient pole to A (1) and E (1) salient pole is changed.The work that the present embodiment three layers of motor monomer are independent and orderly, the present embodiment rotor is made to rotate to any angle, heterogeneous line is had to power simultaneously and produce continuous print turning moment in three layers of motor monomer, which further increases the power output of motor, segment step angle simultaneously, reach the effect of smooth starting and running.
Embodiment four:
The present embodiment is the external rotor permanent magnet motor that stator excitation salient pole is axially arranged salient pole salient pole and the convex level of rotor permanent magnet, and its structure is as shown in accompanying drawing 14 and accompanying drawing 15.
The present embodiment rotor is made up of magnetic conduction rotational shell body 71 and 12 permanent magnets 72, 12 permanent magnets are divided into six groups, two permanent magnets are one group, the S pole of one of them permanent magnet connects magnetic conduction rotational shell body, another permanent magnet then connects magnetic conduction rotational shell body 71 with N pole, often organize two permanent magnets axially to arrange along rotation axis, often organize two permanent magnets and define a permanent magnetism salient pole pair through magnetic conduction rotational shell body, 12 permanent magnets two one group, define six permanent magnetism salient poles pair, these six permanent magnetism salient poles are arranged along the equilibrium of motor inner rotary inner walls ring-type, and the adjacent magnetic polarity of permanent magnetism salient pole to salient pole is different.The stator of the present embodiment motor by pedestal 77 and eight stator excitation salient poles to forming, eight field excitation salient poles are to taking rotation axis as symmetry axis, radial equilibrium is arranged at around pedestal 77, and each other in Magnetic isolation state, each field excitation salient pole is to there being two salient poles 78, and these two salient poles are also in axially arranging.Field excitation salient pole on stator is oppositely arranged salient pole salient pole and epitrochanterian permanent magnetism salient pole, and leaves air gap.Eight stator excitation salient poles to rotation axis 76 for symmetry axis, after being positioned at right magnet exciting coil 73 serial or parallel connection of two stator excitation salient poles on axisymmetric position, powered by a phase exciting current and controlled, such eight stator excitation salient poles are powered to by four phase exciting currents and control.
In the present embodiment, before certain a pair stator excitation salient pole not to overlap closest to the radial centre lines of rotor permanent magnet salient pole to salient pole to the radial centre lines of salient pole and certain a pair, the right magnet exciting coil of this stator excitation salient pole is applied in positive incentive electric current, the salient pole making this stator excitation salient pole right produces magnetic attraction to the salient pole right closest to rotor permanent magnet salient pole, once this stator excitation salient pole overlaps with closest to the radial centre lines of rotor permanent magnet salient pole to salient pole to the radial centre lines of salient pole, be arranged at the position sensor output signal between stator and rotor, this signal trigger activator controls power supply, excitation controls power supply makes this stator excitation salient pole be zero to magnet exciting coil exciting current instantaneously, then be applied in reverse energization electric current immediately, make this stator excitation salient pole to immediate rotor permanent magnet salient pole to generation magnetic motive force, and when said stator field excitation salient pole never overlaps to coincidence to salient pole radial centre lines with closest to rotor permanent magnet salient pole to radial centre lines experience, no longer overlap in section blink from overlapping to again, excitation controls power supply and applies exciting current forward or backwards to the magnet exciting coil that other threephase stator field excitation salient pole is right, these stator excitation salient poles are to remain the right magnetic attraction of rotor permanent magnet salient pole near it and magnetic motive force, until have again a pair stator excitation salient pole to the radial centre lines of salient pole and anotherly to overlap to salient pole radial centre lines to closest to rotor permanent magnet salient pole, this process moves in circles, rotor is made to continue to rotate.As in accompanying drawing 15, rotor is in being rotated counterclockwise, once field excitation salient pole overlaps to I and IV salient pole radial centre lines with permanent magnetism salient pole on rotor to the salient pole radial centre lines of A and E on stator, namely excitation controls power supply is zero from originally providing reverse current to change electric current instantaneously to stator excitation salient pole to A and E phase line, changing electric current is immediately forward, in accompanying drawing 15, the magnetic polarity of stator excitation salient pole to A salient pole changes into N by S, the magnetic polarity of stator excitation salient pole to E salient pole changes into S by N, on stator, field excitation salient pole to disappear to the magnetic rotation the suction-combining force of I and IV salient pole to permanent magnetism salient pole on rotor to A and E salient pole and namely produces magnetic motive force, and at stator excitation salient pole in the time period of A and E commutation power supply, excitation controls power supply maintenance and provides maintenance forward current to field excitation salient pole on stator to B and F phase line, field excitation salient pole on stator is made to remain the magnet attraction pulling force of permanent magnetism salient pole on rotor to II and V salient pole to B and F salient pole, still at this moment between in section, excitation controls power supply maintenance and provides reverse current to field excitation salient pole on stator to C and G phase line, field excitation salient pole on stator is made both to produce magnetic motive force to permanent magnetism salient pole on rotor to II and V salient pole to C and G salient pole, also to III and VI salient pole, magnetic attraction is produced to rotor permanent magnet salient pole simultaneously, still at this moment between in section, excitation controls power supply maintenance and provides forward current to field excitation salient pole on stator to D and H phase line, field excitation salient pole on stator is made to produce magnetic repulsion thrust to permanent magnetism salient pole on rotor to III and VI salient pole to D and H salient pole, through of short duration time period, on stator, field excitation salient pole overlaps to II and V salient pole radial centre lines with permanent magnetism salient pole on rotor to B and F salient pole radial centre lines, and other stator excitation salient pole is to repeating the above-mentioned attraction right to rotor permanent magnet salient pole or repulsion process successively.Circulation like this, makes rotor be rotated counterclockwise reposefully.Setting position transducer between rotor and stator, when epitrochanterian certain permanent magnetism salient pole is overlapped to the radial centre lines complete matching of stator excitation salient pole to salient pole with certain to the radial centre lines of salient pole time, namely position transducer sends signal and controls power supply to excitation, and then to control that stator excitation salient pole that power supply overlaps to radial centre lines makes the exciting current in phase line by excitation be zero commutation control immediately instantaneously.
Embodiment five:
To be stator excitation salient pole be the radial external rotor permanent magnet motor arranged to two salient poles and right two salient poles of rotor permanent magnet salient pole to the present embodiment.As shown in accompanying drawing 16 and accompanying drawing 17.
Rotor in the present embodiment is made up of cylindric magnetic conductor 81 and six permanent magnet blocks 82, six permanent magnet blocks take rotation axis as symmetry axis, be arranged at cylindric magnetic conductor 81 inwall symmetrical equilibrium, and the magnetic polarity of adjacent two salient poles is different, adjacent two permanent magnetism salient poles are through cylindric magnetic conductor magnetic connection function, define " permanent magnetism salient pole to ", cylindric magnetic conductor is fixedly connected with rotation axis through non-magnetic connecting plate, stator in the present embodiment by four field excitation salient poles to forming, each field excitation salient pole is to again by there being the magnet exciting coil 84 of the laminated core of two salient poles 83 and this laminated core periphery of coiling to form, four field excitation salient poles are to taking rotation axis as symmetry axis, be arranged at stator seat 85 peripheral symmetrical equilibrium, four stator excitation salient poles rotate to salient pole the rotation facade formed with rotor permanent magnet salient pole to the facade at salient pole and overlap, each stator excitation salient pole is equal to angle between two permanent magnetism salient pole radial centre lines with rotor permanent magnet salient pole to angle between the radial centre lines of two salient poles, the right magnet exciting coil of four stator excitation salient poles encourages control by four phase line exciting currents respectively.
In accompanying drawing 16, the radial centre lines angle of field excitation salient pole to A two salient poles is 60 degree, the radial centre lines angle of permanent magnetism salient pole to salient pole I and salient pole II is all 60 degree, equally, the radial centre lines angle of field excitation salient pole to C two salient poles is 60 degree, and the radial centre lines angle of permanent magnetism salient pole to salient pole IV and salient pole V is all 60 degree.Field excitation salient pole defines the shortest magnetic loop to A and permanent magnetism salient pole between salient pole I and salient pole II, field excitation salient pole defines the shortest magnetic loop to C and permanent magnetism salient pole between salient pole IV and salient pole V, field excitation salient pole to A and permanent magnetism salient pole between salient pole I and salient pole II, field excitation salient pole disappears to the rotating force between salient pole IV and salient pole V to C and permanent magnetism salient pole, and now, field excitation salient pole both formed repulsive force to permanent magnetism salient pole II to the N salient pole of B, again attraction is formed to permanent magnetism salient pole III, field excitation salient pole both formed repulsive force to permanent magnetism salient pole III to the S salient pole of B, again attraction is formed to permanent magnetism salient pole IV, field excitation salient pole both became repulsive force to permanent magnetism salient pole V-arrangement to the S salient pole of D, again attraction is formed to permanent magnetism salient pole VI, field excitation salient pole both formed repulsive force to permanent magnetism salient pole VI to the N salient pole of D, again attraction is formed to permanent magnetism salient pole I.
Setting position transducer between the stator and rotor of the present embodiment, once there be permanent magnetism salient pole on rotor to overlap with the radial centre lines of field excitation salient pole to two salient poles to the radial centre lines of two salient poles, if field excitation salient pole in accompanying drawing 16 is to A and C, namely position transducer outputs signal to excitation and controls power supply, excitation controls power supply first makes field excitation salient pole be zero to magnet exciting coil L1 in A and C and L3 exciting current, input immediately changes nyctitropic exciting current, and field excitation salient pole is changed the magnetic polarity of A and C salient pole.The field excitation salient pole changing magnetic polarity forms the active force right to permanent magnetism salient pole again to A and C.
In the present embodiment, rotor often rotates 30-degree angle and namely there will be field excitation salient pole to salient pole and the permanent magnetism salient pole situation to salient pole " strictly just to ", just have the right magnet exciting coil electric current of field excitation salient pole and change direction, so move in circles, field excitation salient pole on stator, to magnet limbs varying cyclically, remains the magnetic force of permanent magnetism salient pole to salient pole.
The excitation of the present embodiment controls power supply and can greatly simplify, because controlled condition is unique, namely only relevant to the relative position right with permanent magnetism salient pole to field excitation salient pole.In addition, the present embodiment compares with tradition " eight to six " double-salient-pole switched reluctance motor, has higher torque and power output.This is because, field excitation salient pole is to just rotating doing work rotor the of short duration period forming magnet short-cut path loop with permanent magnetism salient pole, and in all the other periods, four field excitation salient poles are to being all in work done state, namely to permanent magnetism salient pole to " not only pushing away but also draw ", as shown in Figure 17.
Embodiment six:
To be stator excitation salient pole be the radial internal rotor permanent-magnetic motor arranged to two salient poles and right two salient poles of rotor permanent magnet salient pole to the present embodiment.As shown in accompanying drawing 18 and accompanying drawing 19.
The present embodiment rotor is made up of rotator seat 96, cylindric magnetic conductor 95 and six permanent magnets 94, rotation axis 97 is fixed with rotator seat 96, rotator seat 96 surrounds by cylindric magnetic conductor 95, six permanent magnets take rotation axis as symmetry axis, be arranged at cylindric magnetic conductor peripheral symmetrical equilibrium, and the magnetic polarity of adjacent two salient poles is different, adjacent two permanent magnetism salient poles, through cylindric magnetic conductor 95 magnetic connection function, form permanent magnetism salient pole pair, the present embodiment stator by four field excitation salient poles to forming, each field excitation salient pole is to again by there being the magnet exciting coil 92 of the laminated core of two salient poles 93 and this laminated core periphery of coiling to form, four field excitation salient poles are to taking rotation axis as symmetry axis, be arranged at motor field frame 91 inwall symmetrical equilibrium, four stator excitation salient poles rotate to salient pole the rotation facade formed with rotor permanent magnet salient pole to the facade at salient pole and overlap, rotor permanent magnet salient pole is equal to angle between the radial centre lines of two salient poles with each stator excitation salient pole to angle between any two permanent magnetism salient pole radial centre lines, the right magnet exciting coil of four stator excitation salient poles encourages control by four phase exciting currents respectively.
In accompanying drawing 18, the radial centre lines angle of field excitation salient pole to A two salient poles is 60 degree, the radial centre lines angle of permanent magnetism salient pole to salient pole I and salient pole II is all 60 degree, equally, the radial centre lines angle of field excitation salient pole to C two salient poles is 60 degree, and the radial centre lines angle of permanent magnetism salient pole to salient pole IV and salient pole V is all 60 degree.Field excitation salient pole defines the shortest magnetic loop to A and permanent magnetism salient pole between salient pole I and salient pole II, field excitation salient pole defines the shortest magnetic loop to C and permanent magnetism salient pole between salient pole IV and salient pole V, field excitation salient pole to A and permanent magnetism salient pole between salient pole I and salient pole II, field excitation salient pole disappears to the rotating force between salient pole IV and salient pole V to C and permanent magnetism salient pole, and now, field excitation salient pole both formed repulsive force to permanent magnetism salient pole II to the N salient pole of B, again attraction is formed to permanent magnetism salient pole III, field excitation salient pole both formed repulsive force to permanent magnetism salient pole III to the S salient pole of B, again attraction is formed to permanent magnetism salient pole IV, field excitation salient pole both became repulsive force to permanent magnetism salient pole V-arrangement to the S salient pole of D, again attraction is formed to permanent magnetism salient pole VI, field excitation salient pole both formed repulsive force to permanent magnetism salient pole VI to the N salient pole of D, again attraction is formed to permanent magnetism salient pole I.
Setting position transducer between the stator and rotor of the present embodiment, once there be permanent magnetism salient pole on rotor to overlap with the radial centre lines of field excitation salient pole to two salient poles to the radial centre lines of two salient poles, if field excitation salient pole in accompanying drawing 18 is to A and C, namely position transducer outputs signal to excitation and controls power supply, excitation controls power supply and changes field excitation salient pole to the direction of magnet exciting coil exciting current in A and C, and field excitation salient pole is changed the magnetic polarity of A and C salient pole.The field excitation salient pole changing magnetic polarity forms active force to permanent magnetism salient pole again to A and C.
In the present embodiment, rotor often rotates 30-degree angle and namely there will be field excitation salient pole to salient pole and the permanent magnetism salient pole situation to " strictly just to ", just have the right magnet exciting coil electric current of field excitation salient pole and change direction, so move in circles, field excitation salient pole on stator, to magnet limbs varying cyclically, remains the magnetic force of permanent magnetism salient pole to salient pole.
Relative for position two magnet exciting coils that stator excitation salient pole is right can also be connected in series or parallel connection by the present embodiment mutually, control is encouraged by two-phase exciting current, like this, excitation controls power supply and can simplify further, because controlled condition is unique, namely only relevant to the relative position right with permanent magnetism salient pole to field excitation salient pole.In addition, because the field excitation salient pole of the present embodiment motor is to just rotating doing work rotor the of short duration period forming the shortest magnetic circuit loop with permanent magnetism salient pole, in all the other periods, four field excitation salient poles are to being all in work done state, namely to permanent magnetism salient pole to " not only pushing away but also draw ", as shown in Figure 19.So the present embodiment compares with tradition " eight to six " double-salient-pole switched reluctance motor, has higher torque and power output.

Claims (3)

1. a reluctance motor for alternating-current continuous torque permanent magnet switch, its formation includes stator, rotor, motor field frame, described stator by some field excitation salient poles to forming, field excitation salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, each field excitation salient pole between each other in Magnetic isolation state, described rotor by some permanent magnetism salient poles to forming, permanent magnetism salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, the right magnet limbs of adjacent permanent magnet salient pole is different, the salient pole axial width that on rotor, permanent magnetism salient pole the is right salient pole axial width right with field excitation salient pole on stator is identical, and during rotor rotation, by permanent magnetism salient pole on rotor, the rotation facade perpendicular to rotation axis that each salient pole is formed is overlapped to the facade perpendicular to rotation axis that each salient pole is formed with stator excitation salient pole, and any one rotor permanent magnet salient pole overlaps with the radial centre lines of any one stator excitation salient pole to two salient poles respectively accordingly to the radial centre lines energy of two salient poles, it is characterized in that: described rotor is made up of cylindric magnetic conductor and six permanent magnet blocks, six permanent magnet blocks take rotation axis as symmetry axis, be arranged at cylindric magnetic conductor inwall symmetrical equilibrium, and the magnetic polarity of two adjacent permanent magnets block salient pole is different, two adjacent permanent magnets block is through cylindric magnetic conductor magnetic connection function, define permanent magnetism salient pole pair, cylindric magnetic conductor is fixedly connected with rotation axis through non-magnetic connecting plate, described stator by four field excitation salient poles to forming, each field excitation salient pole is to being made up of the magnet exciting coil of the laminated core and this laminated core periphery of coiling with two salient poles again, four field excitation salient poles are to taking rotation axis as symmetry axis, be arranged at stator seat periphery symmetrical equilibrium, four field excitation salient poles are to each other in Magnetic isolation state, four stator excitation salient poles rotate to salient pole the rotation facade formed with rotor permanent magnet salient pole to the facade at salient pole and overlap, each stator excitation salient pole is equal to center of circle angle between two permanent magnetism salient pole radial centre lines with rotor permanent magnet salient pole to center of circle angle between the radial centre lines of two salient poles, the right magnet exciting coil of four stator excitation salient poles encourages control by four phase exciting currents respectively, or the right magnet exciting coil of relative two the stator excitation salient poles in position is connected in series or in parallel mutually, control is encouraged by two-phase exciting current.
2. reluctance motor for alternating-current continuous torque permanent magnet switch according to claim 1, it is characterized in that: described rotor is made up of rotator seat, cylindric magnetic conductor and six permanent magnets, rotation axis and rotator seat are fixed, rotator seat surrounds by cylindric magnetic conductor, six permanent magnets take rotation axis as symmetry axis, be arranged at cylindric magnetic conductor peripheral symmetrical equilibrium, and the magnetic polarity of two adjacent permanent magnets salient pole is different, two adjacent permanent magnets, through cylindric magnetic conductor magnetic connection function, forms permanent magnetism salient pole pair, described stator by four field excitation salient poles to forming, each field excitation salient pole is to being made up of the magnet exciting coil of the laminated core and this laminated core periphery of coiling with two salient poles again, four field excitation salient poles are to taking rotation axis as symmetry axis, be arranged at motor field frame inwall symmetrical equilibrium, four stator excitation salient poles rotate to salient pole the facade formed with rotor permanent magnet salient pole to the facade at salient pole and overlap, rotor permanent magnet salient pole is equal to center of circle angle between the radial centre lines of two salient poles with each stator excitation salient pole to center of circle angle between any two permanent magnetism salient pole radial centre lines, the right magnet exciting coil of four stator excitation salient poles encourages control by four phase exciting currents respectively, or the right magnet exciting coil of relative two the stator excitation salient poles in position is connected in series or in parallel mutually, control is encouraged by two-phase exciting current.
3. the excited control method of a reluctance motor for alternating-current continuous torque permanent magnet switch, it is characterized in that: this excited control method the electric motor structure feature that is suitable for be, this motor stator by field excitation salient pole to forming, field excitation salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, each field excitation salient pole is to each other in Magnetic isolation state, this motor rotor by permanent magnetism salient pole to forming, permanent magnetism salient pole is to taking motor rotation axis as symmetry axis, arrange along concentric ring-shaped symmetrical equilibrium, the right magnet limbs of adjacent permanent magnet salient pole is different, the salient pole axial width that on the salient pole axial width that on rotor, permanent magnetism salient pole is right and stator, field excitation salient pole is right in opposite directions, and during rotor rotation, by permanent magnetism salient pole on rotor, the rotation facade perpendicular to rotation axis that each salient pole is formed is overlapped to the facade perpendicular to rotation axis that each salient pole is formed with stator excitation salient pole, stator excitation salient pole is equal with the center of circle angle of rotor permanent magnet salient pole to two permanent magnetism salient pole radial centre lines to the center of circle angle of two salient pole radial centre lines, once certain permanent magnetism salient pole overlaps with the radial centre lines of any one field excitation salient pole to salient pole on stator to the radial centre lines of salient pole on rotor, namely the position transducer be individually fixed on rotor and stator produces a signal, this signal controls the power supply magnet exciting coil that makes this radial centre lines coincidence field excitation salient pole right by the control program cut-off current arranged through excitation, input reverse current immediately, even if this radial centre lines coincidence field excitation salient pole changes the magnetic polarity of salient pole, and other field excitation salient pole remains unchanged to magnet exciting coil electric current, until occur that another field excitation salient pole overlaps with the radial centre lines of permanent magnetism salient pole to salient pole to the radial centre lines of salient pole, this process moves in circles.
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CN101777804A (en) * 2010-03-05 2010-07-14 黄山市继林机械制造有限公司 Motor for electromobile

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