CN106130278A - Electric rotating machine - Google Patents
Electric rotating machine Download PDFInfo
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- CN106130278A CN106130278A CN201610293025.4A CN201610293025A CN106130278A CN 106130278 A CN106130278 A CN 106130278A CN 201610293025 A CN201610293025 A CN 201610293025A CN 106130278 A CN106130278 A CN 106130278A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K51/00—Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K99/00—Subject matter not provided for in other groups of this subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
The magnetic flux of revolutional slip frequency can be changed and be recovered as magnetization energy efficiently by offer, utilizes the magnetization energy reclaimed to produce electric magnet torque and improve the electric rotating machine of torque density.In electric rotating machine (100), the difference on the frequency induction coil (Iim) that the magnetic flux of the 1st frequency and the difference on the frequency of the 2nd frequency of internal rotor that outer rotor (20) has outer rotor in the inner side salient pole (22) be located at the side relative with internal rotor (30) is interlinked, the harmonic wave induction coil (Is) that the harmonic wave comprised in being located at during the outer radial periphery side of outside salient pole (23) of the side relative with stator (10) has at stator (10) magnetic flux produced is interlinked, there is the magnet exciting coil (WF) being provided the electric current produced by harmonic wave induction coil (Is) and difference on the frequency induction coil (Iim) in the radially inner circumference side of lateral process pole (23).
Description
Technical field
The present invention relates to the electric rotating machine with the birotor form of outer rotor and internal rotor.
Background technology
As the electric rotating machine being equipped on motor vehicle driven by mixed power etc., it is proposed that outer rotor and interior turn
Son is by the electric rotating machine of the birotor form of arranged coaxial.
In the past, as the electric rotating machine of this birotor form, it is known that patent documentation 1 is remembered
The electric rotating machine carried.Electric rotating machine described in patent documentation 1 possesses distribution and is wound with coil
Stator, by embedding magnet type rotor constitute outer rotor and press coiled pipe type inductiopn rotor structure
The internal rotor become.
This electric rotating machine makes outer rotor and internal rotor couple by magnetic coupling, it is possible to defeated
The kinetic energy such as engine power entered to internal rotor is delivered to as magnetic energy by magneto-coupling effect
Outer rotor.It addition, magnetic energy can be delivered to output shaft as kinetic energy by outer rotor.
Prior art literature
Patent documentation
Patent documentation 1: JP 2015-16740 publication
Summary of the invention
The problem that invention is to be solved
Here, existing electric rotating machine is Tong Bu with the rotating excitation field produced by stator at outer rotor
When ground rotates, the Magnet being configured at internal rotor side outer rotor when rest frame is observed
Produce rotating excitation field.
Further, when internal rotor rotates relative to outer rotor along with revolutional slip, turned by outer
" the magnetic flux variation of revolutional slip frequency " that the difference on the frequency of son and internal rotor produces hands over outer rotor
Chain.
But, the magnetic flux variation of this revolutional slip frequency is asynchronous composition relative to internal rotor,
Therefore the magnetic flux variation of revolutional slip frequency makes the iron loss of outer rotor or Magnet eddy-current loss increase.
It addition, revolutional slip frequency magnetic flux variation become invalid energy, therefore can make power because of
Number reduces.When power factor reduces, torque/voltage ratio deteriorates, therefore limited straight
Under stream voltage limits, situation about limiting according to voltage, it may occur that variable-ratio torque characteristics reduces.
Therefore, it is an object of the invention to provide and can will produce between outer rotor and internal rotor
The magnetic flux variation of raw revolutional slip frequency is recovered as magnetization energy efficiently, utilizes that reclaims to encourage
Magnetic energy produces electric magnet torque and improves the electric rotating machine of torque density.
For solving the scheme of problem
The electric rotating machine of the mode solving the invention of the problems referred to above has: stator, its tool
The armature coil of magnetic flux is produced when having supply alternating current；1st rotor, it is above-mentioned that it is located at ratio
Stator, by the position of rotation shaft side, is rotated with the 1st frequency by the interlinkage of above-mentioned magnetic flux；With
And the 2nd rotor, it is located at than above-mentioned 1st rotor by the position of above-mentioned rotation shaft side, according to
The 2nd frequency that above-mentioned 1st frequency is different rotates, and above-mentioned electric rotating machine is configured to, and the above-mentioned 1st
Rotor has difference on the frequency in the inner side salient pole being located at the side relative with above-mentioned 2nd rotor and uses
Induction coil, this difference on the frequency induction coil and above-mentioned 1st frequency and the frequency of above-mentioned 2nd frequency
The magnetic flux interlinkage of rate variance, in the radial direction of the outside salient pole being located at the side relative with said stator
Outer circumferential side has higher harmonics induction coil, this higher harmonics induction coil with in said stator
The higher harmonics interlinkage contained in the magnetic flux of middle generation, in the radially inner circumference side of above-mentioned outside salient pole
There is magnet exciting coil, above-mentioned harmonic wave induction coil and said frequencies difference induction coil produce
Raw electric current is supplied to this magnet exciting coil.
Invention effect
So in accordance with the invention it is possible to will between outer rotor and internal rotor produce revolutional slip
The magnetic flux variation of frequency is recovered as magnetization energy efficiently, utilizes the magnetization energy reclaimed to produce
Electric magnet torque and improve torque density.
Accompanying drawing explanation
Fig. 1 is the figure of the composition of the electric rotating machine representing an embodiment of the invention, is
The sectional view of electric rotating machine is blocked with the normal surface of rotary shaft.
Fig. 2 is the figure of the composition of the electric rotating machine representing an embodiment of the invention, is
Represent the sectional view of the detailed content of electric rotating machine.
Fig. 3 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent to set
Figure in the full-wave rectifying circuit of outer rotor.
Fig. 4 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent tool
The figure of the composition of the hybrid electric drive system of standby electric rotating machine.
Fig. 5 is the composition with magnetic modulation type non-magnet magnetic-gear motor as comparative example
The alignment chart of electric rotating machine.
Fig. 6 be denoted as comparative example there is magnetic modulation type non-magnet magnetic-gear motor
The sectional view of the composition of the electric rotating machine constituted.
Fig. 7 is the figure of the electric rotating machine representing an embodiment of the invention, is electric rotating
The alignment chart of machine.
Fig. 8 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent
Electric rotating machine produces the sectional view of the state of magneto-coupling effect.
Fig. 9 is the figure of the electric rotating machine representing an embodiment of the invention, is internal rotor
The alignment chart of the electric rotating machine that revolutional slip is timing.
Figure 10 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent interior
The revolutional slip of rotor is the sectional view of the magnetic flux density of the electric rotating machine of timing.
Figure 11 is the figure of the electric rotating machine representing an embodiment of the invention, is internal rotor
The alignment chart of revolutional slip electric rotating machine when being negative.
Figure 12 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent interior
The sectional view of the magnetic flux density of the electric rotating machine when revolutional slip of rotor is negative.
Figure 13 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent phase
The figure of variable-ratio torque characteristics of outer rotor for the speed of internal rotor.
Figure 14 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent interior
The sectional view of the magnetic flux density of the electric rotating machine of the revolutional slip hour of rotor and outer rotor.
Figure 15 is the change of the rotor current during state that revolutional slip is Figure 14 representing internal rotor
The figure changed.
Figure 16 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent interior
The sectional view of the magnetic flux density of the electric rotating machine when revolutional slip of rotor and outer rotor is big.
Figure 17 is the change of the rotor current during state that revolutional slip is Figure 16 representing internal rotor
The figure changed.
Figure 18 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent
The magnetic flux density of electric rotating machine when having secondary excitation under the state that the revolutional slip of internal rotor is 0
Sectional view.
Figure 19 is the figure of the rotor current in the electric rotating machine of the state representing Figure 18.
Figure 20 is the figure of the electric rotating machine representing an embodiment of the invention, is to represent interior
The magnetic flux density of electric rotating machine when not having secondary excitation under the state that the revolutional slip of rotor is 0
Sectional view.
Figure 21 is the figure of the rotor current in the electric rotating machine of the state representing Figure 20.
Figure 22 be compare the state having secondary excitation of Figure 18 and Figure 20 there is no secondary excitation
The figure of torque of electric rotating machine of state.
Description of reference numerals
10: stator
14: armature coil
20: outer rotor (the 1st rotor)
22: inner side salient pole
23: outside salient pole
30: internal rotor (the 2nd rotor)
32: rotor tooth (salient pole)
33: groove
34: magnet exciting coil
100: electric rotating machine
100c: rotary shaft
C: full-wave rectifying circuit
Iim: difference on the frequency induction coil
Is: harmonic wave induction coil
WF: magnet exciting coil
Detailed description of the invention
Hereinafter, the embodiment that present invention will be described in detail with reference to the accompanying.Fig. 1～Figure 22 is to say
The figure of the electric rotating machine of bright an embodiment of the invention.
Schematic configuration ＞ of ＜ electric rotating machine
In FIG, electric rotating machine 100 is configured to the electric rotating machine of birotor form, and possesses:
Stator 10, it is formed as drum；Outer rotor 20, it is located at than this as the 1st rotor
Stator 10 is by the position of rotary shaft 100c side；And internal rotor 30, it sets as the 2nd rotor
In the position leaning on rotary shaft 100c side than this outer rotor 20.Outer rotor 20 and internal rotor 30 are respectively
It is supported for rotate against with rotary shaft 100c for center of rotation.
＜ electric rotating machine constitute ＞ in detail
In fig. 2, stator 10 possesses stator core 11 and armature coil 14.Here, Fig. 2
Represent the longitudinal section view of the amount (1/6) that mechanical angle is 60 degree in 360 degree.
In the inner circumferential side of stator core 11, i.e. relative with outer rotor 20 side is formed multiple
Stator tooth 12, this stator tooth 12 is towards the radially extending of rotary shaft 100c and in the circumferential
It is arranged at equal intervals configuration.
The recess clipped by the side of the most adjacent stator tooth 12 constitutes groove 13.At groove 13
In be accommodated with the W phase with three-phase alternating current, V phase, armature coil 14 corresponding for U.
Armature coil 14 is wound by concentration and is wound in stator tooth 12.Armature coil 14 is carried
Supply the alternating current of 3 phases thus produce the rotating excitation field rotated in the circumferential.
Outer rotor 20 is configured to self-excitation type coiled pipe type excitation rotor, and possess rotor rim 21,
Magnet exciting coil WF, difference on the frequency induction coil Iim and harmonic wave induction coil Is.
Rotor rim 21 includes the magnetics such as the steel that magnetic susceptibility is high, is being internally formed magnetic circuit.
In the inner circumferential side of rotor rim 21, i.e. relative with internal rotor 30 side is provided with multiple interior pleurapophysis
Pole 22, inside this, salient pole 22 is in the circumferential to configure at equal intervals.The inner peripheral surface of inner side salient pole 22
Relative with the outer peripheral face of the rotor tooth described later 32 of internal rotor 30 across air gap G2.
The recess clipped by the side of the most adjacent inner side salient pole 22 constitutes inner side slot 25.?
Inner side slot 25 is accommodated with difference on the frequency induction coil Iim.Difference on the frequency induction coil Iim leads to
Cross concentration winding and be wound in inner side salient pole 22.1st frequency F1 [Hz] described later and the 2nd
The magnetic flux of the difference on the frequency of frequency F2 [Hz] interlinks with difference on the frequency induction coil Iim.
At the outer circumferential side of rotor rim 21, i.e. relative with stator 10 side is provided with multiple outside
Salient pole 23, outside this, salient pole 23 is in the circumferential to configure at equal intervals.The periphery of outside salient pole 23
Face is relative with the inner peripheral surface of the stator tooth 12 of stator 10 across air gap G1.Outside the most adjacent
The recess that the side of pleurapophysis pole 23 clips constitutes outer side slot 24.
So, the rotor rim 21 of outer rotor 20 is in the air gap G1 side relative with stator 10
The two face, face of face and the air gap G2 side relative with internal rotor 30 has salient pole structure.In
Pleurapophysis pole 22 and outside salient pole 23 form magnetic circuit by rotor rim 21.
Harmonic wave induction coil Is and magnet exciting coil WF it is accommodated with in outer side slot 24.Harmonic wave
Wound by concentration with induction coil Is and be wound in the outer circumferential side of outside salient pole 23.By stator
The harmonic wave comprised in 10 magnetic fluxs produced interlinks with harmonic wave induction coil Is.
Magnet exciting coil WF is wound by concentration and is wound in the inner circumferential side of outside salient pole 23.By
The alternating current that harmonic wave induction coil Is and difference on the frequency induction coil Iim produces is aftermentioned
Full-wave rectifying circuit C (with reference to Fig. 3) rectification be to be supplied to magnet exciting coil after DC current
WF。
Outer rotor 20 is with the 1st frequency with the Frequency Synchronization of the alternating current being supplied to stator 10
F1 rotates.
In fig. 2,2 difference on the frequency induction coils of adjacent inner side salient pole 22 will be wound in
Iim is set to Iim1, Iim2.It addition, by outside for the footpath that is wound in adjacent outside salient pole 23
Week, 2 harmonic wave induction coil Is of side were set to Is1, Is2.It addition, it is adjacent by being wound in
2 magnet exciting coil WF of the radially inner circumference side of outside salient pole 23 are set to WF1, WF2.
Outer rotor 20 possesses the full-wave rectifying circuit C shown in Fig. 3.In figure 3, all wave rectification
Circuit C is by harmonic wave full-wave rectifying circuit C1, difference on the frequency full-wave rectifying circuit C2 and encourages
Magnetic coil WF1, WF2 are formed.
Harmonic wave full-wave rectifying circuit C1 includes by harmonic wave induction coil Is1, Is2 and two poles
The circuit that pipe D1, D2 are connected in series.
Difference on the frequency full-wave rectifying circuit C2 includes by difference on the frequency induction coil Iim1, Iim2
The circuit being connected in series with diode D1, D2.
Magnet exciting coil WF1 and magnet exciting coil WF2 is connected in series.Harmonic wave full-wave rectifying circuit
C1 and difference on the frequency full-wave rectifying circuit C2 is connected in parallel to magnet exciting coil WF1 and excitation
Coil WF2.
Full-wave rectifying circuit C will be used by harmonic wave induction coil Is (Is1, Is2) and difference on the frequency
The alternating current rectification that induction coil Iim (Iim1, Iim2) produces is to carry after DC current
Supply magnet exciting coil WF (WF1, WF2).
Internal rotor 30 is configured to coiled pipe type inductiopn rotor, and possesses rotor core 31 and excitation wire
Circle 34.
At the outer circumferential side of rotor core 31, i.e. relative with outer rotor 20 side is formed multiple
Rotor tooth 32, this rotor tooth 32 extends to the direction away from rotary shaft 100c, and in the circumferential
To configure at equal intervals.
The recess clipped by the side of the most adjacent rotor tooth 32 constitutes groove 33.At groove 33
In be accommodated with each corresponding magnet exciting coil 34 with three-phase alternating current.
Magnet exciting coil 34 is wound by distribution and is wound in rotor tooth 32.Magnet exciting coil 34 passes through
The offer of alternating current, by secondary excitation, produces magnetic flux.Magnet exciting coil 34 is due to the magnetic of interlinkage
Flux density changes and produces (sensing) faradic current.The outer peripheral face of rotor tooth 32 across
Air gap G2 is relative with the inner peripheral surface of the rotor rim 21 of outer rotor 20.Internal rotor 30 is supported for
Can rotate against with outer rotor 20, therefore according to the 1st frequency F1 with outer rotor 20
The 2nd different frequencies F2 rotates.2nd frequency F2 is and the alternating current being supplied to stator 10
Frequency (F1) nonsynchronous frequency.
Here, in electric rotating machine 100, stator 10 combines with the pole of the salient pole of outer rotor 20
It is pole: groove is 2:3.That is, electric rotating machine 100 is configured to the outside salient pole of outer rotor 20 side
Quantity P of 23: quantity S of the groove 13 of stator 10 side is 2:3.
Thereby, it is possible to make to become impartial Density Distribution on the complete cycle that mechanical angle is 360 degree
Magnetic flux interlinkage, it is possible to make outer rotor 20 stator 10 in high-quality rotation.Can utilize
Space harmonics magnetic flux carries out spinning movement, therefore, it is possible to reclaim off-energy efficiently, it is possible to
Electric and magnetic oscillation is greatly reduced and makes outer rotor 20 quietness highland rotate.
Additionally, it is preferred that the rotor number of teeth of internal rotor 30 (quantity of rotor tooth 32) is by number of poles
It is set to during P become 6 × P.The number of poles P of the electric rotating machine 100 of present embodiment is 12, will turn
The sub-number of teeth is set to 6 × 12=72.
That is, in internal rotor 30, magnet exciting coil 34 is wound by distribution and is wound in formation pole
The rotor tooth 32 of the groove number of 6 times of number.Can be guaranteed between coil by this distribution winding
Away from, increase the magnetic flux interlinked with magnet exciting coil 34, improve torque density.
By use said structure, it is possible to by the magnetic coupling between motor by electromotor output from
Internal rotor 30 is delivered to outer rotor 20.
＜ applies the hybrid electric drive system ＞ of the electric rotating machine of present embodiment
In the diagram, electric rotating machine 100 and electromotor 201, drive shaft 202 and drive circuit 250
Constitute hybrid electric drive system 200 together.
The output shaft 30A of internal rotor 30 links with electromotor 201, internal rotor 30 and electromotor
201 rotate integrally.The output shaft 20A of outer rotor 20 links with drive shaft 202, outer rotor 20
Rotate integrally with drive shaft 202.Turn in being located at each corresponding slip ring 39 of three-phase alternating current
Son 30 output shaft 30A and can rotate integrally with it.
Drive circuit 250 includes accumulator 251, inverter 252 and inverter 253.Electric power storage
Pond 251 includes secondary cell, is connected with inverter 252 and inverter 253 respectively.
Inverter 252 is connected with the armature coil 14 of stator 10.Inverter 252 will be from accumulator
251 unidirectional currents taken out are converted to three-phase alternating current, are supplied to by this three-phase alternating current
Armature coil 14.
Inverter 253 is connected with the magnet exciting coil 34 of internal rotor 30 by slip ring 39.Inverter
The unidirectional current taken out from accumulator 251 is converted to three-phase alternating current by 253, this three is intersected
Stream electric current is supplied to magnet exciting coil 34.
Internal rotor 30 is carried out secondary excitation by the alternating current provided from inverter 253.Additionally,
As the structure making internal rotor 30 secondary excitation, it is also possible to be brushless secondary excitation structure.?
In brushless secondary excitation structure, although omit diagram, but utilize from accumulator 251
Direct current makes not shown FSM excitation produce the rotary frequency according to self on internal rotor 30
The sinuous magnetic flux of rate variation.
The electric rotating machine of ＜ present embodiment and the magnetic modulation type non-magnet magnetic as comparative example
Powershift gear motor comparison ＞ in alignment chart
Fig. 5, Fig. 6 are denoted as the conllinear of the magnetic modulation type magnetic-gear motor of comparative example respectively
Figure and pie graph.It addition, Fig. 7, Fig. 8 represent the electric rotating machine 100 of present embodiment respectively
Alignment chart and pie graph.
As shown in Figure 8, in electric rotating machine 100, magnet exciting coil 34 to internal rotor 30 provides
The three-phase alternating current of 2 frequencies F2.Magnet exciting coil 34 is carried out secondary by the three-phase alternating current of the 2nd frequency F2
Excitation.
As shown in Figure 6, magnetic modulation type magnetic-gear motor 300 be configured to possess stator 310,
The non-magnet type motor of modulation element 320 and coiled pipe type excitation rotor 330.At stator 310
In, the most arranged side by side at the radially extending multiple stator tooths 311 towards axle center.?
In stator 310, will be set to groove 312 between the side of stator tooth 311, armature coil 313 passes through
Distribution winds and is wound in stator tooth 311.According to including the soft magnetisms such as steel that magnetic susceptibility is high
The magnetic circuit component 321 of the prism-shaped of body extends and so-called cage the most arranged side by side in the axial direction
The form of the rotor of type motor forms modulation element 320.That is, modulation element 320 includes making magnetic
The logical magnetic circuit component 321 passed through well and do not make magnetic flux pass through space 322 in the circumferential
The modulation element alternately existed.Thus, carry out relative to stator 310 at modulation element 320
When rotating against, make the magnetic circuit component 321 that magnetic flux passes through and the space passed through limiting magnetic flux
322 are repeatedly switched and are formed magnetic loop.Radial outside at coiled pipe type excitation rotor 330 sets
There is induction coil 334, be provided with magnet exciting coil 335 at radially inner side.Above-mentioned magnetic modulation type magnetic force
Gear motor 300 is as it is shown in figure 5, stator 310, coiled pipe type excitation rotor 330, modulation element
320 all carry out asynchronous rotation.
On the other hand, the electric rotating machine 100 of present embodiment is as it is shown in fig. 7, by stator 10
The rotating excitation field brought and outer rotor 20 carry out synchronous rotary.It addition, at this electric rotating machine 100
In, internal rotor 30 carries out asynchronous rotation relative to outer rotor 20 or stator 10.
One example ＞ of the drive pattern of ＜ electric rotating machine
Electric rotating machine 100 is outer rotor 20 and the knot of internal rotor 30 respective output shaft independence
Structure.
Therefore, as shown in Figure 9, Figure 10, electric rotating machine 100 can drive internal rotor 30 to make it
Become the state being slower than rotating excitation field and rotate, i.e. revolutional slip is positive state.Fig. 9,
In Figure 10, stator 10 and outer rotor 20 carry out synchronous rotary.It addition, internal rotor 30 relative to
Rotating excitation field and the outer rotor 20 of stator 10 carry out asynchronous rotation with relatively low speed.
It addition, as shown in Figure 11, Figure 12, electric rotating machine 100 can drive internal rotor 30 to make
It becomes the state being faster than rotating excitation field rotation, i.e. revolutional slip is negative state.Figure 11,
In Figure 12, stator 10 and outer rotor 20 carry out synchronous rotary.It addition, internal rotor 30 relative to
Rotating excitation field and the outer rotor 20 of stator 10 carry out asynchronous rotation with speed faster.This
Outward, rotate counterclockwise at Figure 10, Tu12Zhong, outer rotor 20 and internal rotor 30.
＜ is relative to the variable-ratio torque characteristics ＞ of the outer rotor of internal rotor
As shown in figure 13, electric rotating machine 100 can be fast by the rotary speed making internal rotor 30
In outer rotor 20 (being set to revolutional slip s is negative state), the kinetic energy of internal rotor 30 is passed through
Magneto-coupling effect is delivered to outer rotor 20.In other words, it is possible to by based on magneto-coupling effect
Torque, i.e. magnetic coupling torque are delivered to outer rotor 20 from internal rotor 30.
Here, employ in the existing electric rotating machine of permanent magnet in outer rotor, revolutional slip
The magnetic flux variation of frequency becomes loss.And in the electric rotating machine 100 of present embodiment, energy
Enough by being wound in the difference on the frequency induction coil Iim of outer rotor 20 by the magnetic of revolutional slip frequency
Logical variation is recovered as magnetization energy efficiently, utilizes the magnetization energy reclaimed to produce electric magnet and turns
Square and improve torque density.
Specifically, in the electric rotating machine 100 of present embodiment, by producing in stator 10
The harmonic wave that raw magnetic flux is comprised produces the faradism of exchange in harmonic wave induction coil Is
Stream, it addition, by being changed the induced voltage brought at difference on the frequency by the magnetic flux of revolutional slip frequency
With the faradic current producing exchange in induction coil Iim.Further, by the faradism of this exchange
Stream is DC current by full-wave rectifying circuit C rectification, thus enables that encouraging of outer rotor 20
Magnetic coil WF produces direct current flux, and strengthened magnetic field effect.
That is, in electric rotating machine 100, owing to the armature coil 14 of stator 10 is to concentrate winding,
So space harmonics can be produced, but it is humorous to reclaim this space with harmonic wave induction coil Is
Ripple, and it is used as the magnetization energy source of the magnet exciting coil WF of outer rotor via 20.
It addition, in electric rotating machine 100, owing to having outer rotor 20 and internal rotor 30
Nonsynchronous dual-rotor structure, so produce revolutional slip between internal rotor 30 and outer rotor 20
Frequency, but this revolutional slip frequency can be reclaimed with difference on the frequency induction coil Iim, and by it
Magnetization energy as the magnet exciting coil WF of outer rotor via 20.
It addition, in electric rotating machine 100, outside salient pole 23 is formed at the rotor of outer rotor 20
Yoke 21, the magnetic flux therefore produced by stator 10 is formed as main through the little (magnetic susceptibility of magnetic resistance
High) outside salient pole 23 after between outer side slot 24 and inner side slot 25 by and from adjacent
The magnetic flux that pleurapophysis pole 23 returns to stator 10.Now, the contraction in length of magnetic flux is beeline.
The masterpiece that this magnetic flux shortens is that reluctance torque acts on outer rotor 20 so that it is with the rotation of stator 10
Turn field synchronous to rotate.That is, electric rotating machine 100 can be by being formed at outside salient pole 23
The rotor rim 21 of outer rotor 20 utilizes reluctance torque.
As it appears from the above, the electric rotating machine 100 of present embodiment can utilize electric magnet torque,
Reluctance torque and magnetic coupling torque improve the torque density of outer rotor 20, above-mentioned electric magnet
Torque be by magnet exciting coil WF provide by outer rotor 20 harmonic wave induction coil Is and
Difference on the frequency induction coil Iim sensing faradic current and produce, above-mentioned reluctance torque is
Owing to magnetic flux is produced by the outside salient pole 23 of formation in the rotor rim 21 of outer rotor 20
Raw, above-mentioned magnetic coupling torque is faster than outer rotor 20 as the rotary speed making internal rotor 30
The retroaction that (being set to revolutional slip s is negative state) causes works.
The faradic current ＞ that ＜ flows in difference on the frequency induction coil and harmonic wave induction coil
Figure 14 represents makes internal rotor 30 and outer rotor 20 respectively according to 3500rpm and 2000rpm
The state of the electric rotating machine 100 during rotation.In fig. 14, stator 10 produces to side counterclockwise
To rotating excitation field, outer rotor 20 and this rotating excitation field synchronously rotate according to 2000rpm.
It addition, internal rotor 30 is negative according to the speed of 1500rpm faster than outer rotor 20 at revolutional slip s
Rotate counterclockwise under state.
Figure 15 represents makes internal rotor 30 and outer rotor 20 respectively according to 3500rpm and 2000rpm
During rotation difference on the frequency with in induction coil Iim and harmonic wave induction coil Is flowing sense
Induced current.
Figure 16 represents makes internal rotor 30 and outer rotor 20 respectively according to 5000rpm and 2000rpm
The state of the electric rotating machine 100 during rotation.In figure 16, stator 10 produces to side counterclockwise
To rotating excitation field, outer rotor 20 and this rotating excitation field synchronously rotate according to 2000rpm.
It addition, internal rotor 30 is negative according to the speed of 3000rpm faster than outer rotor 20 at revolutional slip s
Rotate counterclockwise under state.
Figure 17 represents makes internal rotor 30 and outer rotor 20 respectively according to 5000rpm and 2000rpm
During rotation difference on the frequency with in induction coil Iim and harmonic wave induction coil Is flowing sense
Induced current.
At Figure 15, Tu17Zhong, the line being designated as " stator side " represents at harmonic wave induction coil
The faradic current of flowing in Is, the line being designated as " internal rotor side " represents in difference on the frequency sensing
The faradic current of flowing in coil Iim.It addition, the faradic current before " (just) " expression rectification
Direction be the direction making outer rotor 20 rotate counterclockwise, " (instead) " represent rectification
Front faradic direction is the direction making outer rotor 20 rotate clockwise.
As from knowable to Figure 15, Figure 17, can confirm that in harmonic wave induction coil Is, at electricity
Produce the faradic current of 3 times of harmonic waves, it is possible to by due to the armature of stator 10 every 1 cycle at angle
Coil 14 is to concentrate the excitation that the 3rd the time harmonic application wound and produce is outer rotor 20
The magnetization energy source of coil WF.Here, the 3rd time harmonic is in rest frame
2 space harmonicses.
It addition, can confirm that and produce by revolutional slip frequency band in difference on the frequency induction coil Iim
The faradic current come, it is possible to the magnetic flux variation application brought by revolutional slip frequency is turned for outside
The magnetization energy source of the magnet exciting coil WF of son 20.
If it addition, Figure 15 and Figure 17 is compared, then understand and be designated as " internal rotor side "
Difference on the frequency with in induction coil Iim, product compared with Figure 17 with Figure 15 that revolutional slip frequency is bigger
Raw more faradic current.Therefore, revolutional slip frequency the magnetic flux brought changes bigger figure
17 compared with Figure 15, it is possible to obtain the magnetization energy to magnet exciting coil WF more.
In the case of presence or absence secondary excitation during ＜ revolutional slip=0 at the difference on the frequency line of induction
In circle and harmonic wave induction coil, the faradic of flowing compares ＞
Figure 18 represents at revolutional slip s=0, i.e. internal rotor 30 and outer rotor 20 is same with rotating excitation field
The electric rotating machine 100 in the case of the secondary excitation of internal rotor 30 is there is under the state that step rotates
State.In figure 18, stator 10 produces rotating excitation field counterclockwise, outer rotor
20 and internal rotor 30 synchronously rotate according to 1000rpm with this rotating excitation field.
Figure 19 represents the difference on the frequency induction coil when the state that electric rotating machine 100 is Figure 18
Iim and harmonic wave faradic current of flowing in induction coil Is.
Figure 20 represents at revolutional slip s=0, i.e. internal rotor 30 and outer rotor 20 enters with rotating excitation field
The electric rotating in the case of the secondary excitation of internal rotor 30 is not had under the state of row synchronous rotary
The state of machine 100.In fig. 20, stator 10 produces rotating excitation field counterclockwise,
Outer rotor 20 and internal rotor 30 synchronously rotate according to 1000rpm with this rotating excitation field.
Figure 21 represents the difference on the frequency induction coil when the state that electric rotating machine 100 is Figure 20
Iim and harmonic wave faradic current of flowing in induction coil Is.
At Figure 19, Tu21Zhong, the line being designated as " stator side " represents at harmonic wave induction coil
The faradic current of flowing in Is, the line being designated as " internal rotor side " represents in difference on the frequency sensing
The faradic current of flowing in coil Iim.It addition, the faradic current before " (just) " expression rectification
Direction be the direction making outer rotor 20 rotate counterclockwise, " (instead) " represent rectification
Front faradic direction is the direction making outer rotor 20 rotate clockwise.This
Outward, in figure 21, internal rotor side (just) is 0 and is fixing.
As shown in figure 18, in the case of internal rotor 30 has been carried out secondary excitation, with such as figure
The situation that internal rotor 30 does not carries out shown in 20 secondary excitation is different, by the secondary of internal rotor 30
The flux interaction that excitation is brought is in outer rotor 20, time therefore due on outer rotor 20 the 3rd time
The magnetic flux of m-Acetyl chlorophosphonazo and revolutional slip frequency changes and makes Excitation interference work.
Therefore, as shown in figure 19, in the case of internal rotor 30 has been carried out secondary excitation,
Internal rotor side (just) is many with electric current change compared with Figure 21 of internal rotor side (instead), stator side
(just) electric current with stator side (instead) tails off compared with Figure 21.Thus, to internal rotor
In the case of 30 have carried out secondary excitation, it is possible to the harmonic wave induction coil Is of outer rotor 20
Reclaim space harmonics energy (stator side (just) and the electric current of stator side (instead)) although
Minimizing compared with Figure 21, but the revolutional slip frequency energy brought by revolutional slip frequency (interior turn
The electric current of sub-side (just) and internal rotor side (instead)) increase compared with Figure 21.
Therefore, as shown in figure 22, the torque of internal rotor (not having secondary excitation) is 0 and is
Fixing, internal rotor (having secondary excitation) only produces the torque of positive and negative variation, but outer rotor
(having secondary excitation) can more obtain compared with outer rotor (not having secondary excitation)
The torque of positive side variation.Thus, when comparing torque by the presence or absence of secondary excitation,
In the case of having secondary excitation, the torque of outer rotor 20 is compared with the situation not having secondary excitation
Can improve.
That is, under the synchronous mode of revolutional slip s=0, it is also possible to by internal rotor 30 is carried out
Secondary excitation and produced rotating excitation field by internal rotor 30, by this rotating excitation field at internal rotor 30
And form magnetic coupling between outer rotor 20, by this magnetic coupling by turning of being produced by internal rotor 30
Square is delivered to outer rotor 20, as a result of which it is, the torque of outer rotor 20 can be improved.
The action effect of the electric rotating machine of present embodiment described above is described.
The electric rotating machine 100 of present embodiment has: stator 10, and it has and passes through alternating current
Stream offer and produce the armature coil 14 of magnetic flux；Outer rotor 20, it is located at than this stator 10
By the position of rotary shaft 100c side, by the interlinkage of magnetic flux that produces in stator 10 according to
1st frequency F1 rotates；And internal rotor 30, it is located at than this outer rotor 20 by rotary shaft 100c
The position of side, rotates according to the 2nd frequency F2 different from the 1st frequency F1.
It addition, outer rotor 20 is being located at the inner side salient pole 22 of the side relative with internal rotor 30
On there is the 1st frequency F1 and the 2nd frequency F2 the difference on the frequency that interlinked of the magnetic flux of difference on the frequency use
Induction coil Iim, outside in the footpath of the outside salient pole 23 being located at the side relative with stator 10
All sides have the harmonic wave sense that the harmonic wave comprised in the magnetic flux produced in stator 10 is interlinked
Answer coil Is, have in the radially inner circumference side of lateral process pole 23 and be provided by the harmonic wave line of induction
The magnet exciting coil WF of the electric current that circle Is and difference on the frequency produce with induction coil Iim.
According to this electric rotating machine 100, outer rotor 20 and internal rotor 30 respectively according to the 1st frequency
F1 and the 2nd frequency F2 rotate, and thus produce revolutional slip between outer rotor 20 and internal rotor 30
The magnetic flux variation of frequency.
It addition, the magnetic flux of the difference on the frequency of the 1st frequency F1 and the 2nd frequency F2 is felt with difference on the frequency
Coil Iim is answered to interlink, thus at difference on the frequency with induction coil Iim produces faradic current.
It addition, the harmonic wave comprised in the magnetic flux produced in stator 10 and harmonic wave induction coil
Is interlinks, thus at harmonic wave with producing faradic current in induction coil Is.
Further, harmonic wave the electricity produced with induction coil Is and difference on the frequency induction coil Iim
Stream is provided to magnet exciting coil WF, thus produces electric magnet torque.
Excitation energy it is recovered as efficiently as a result of which it is, the magnetic flux of revolutional slip frequency can be changed
Amount, and utilize the magnetization energy of recovery to produce electric magnet torque and improve torque density.
And, according to this electric rotating machine 100, it is possible to produce reluctance torque and by magnet exciting coil
The electric magnet torque that WF produces, therefore, it is possible to avoid the high one-tenth brought by the use of permanent magnet
This change.
It addition, in the electric rotating machine 100 of present embodiment, outer rotor 20 has by humorous
The alternating current rectification that ripple induction coil Is and difference on the frequency induction coil Iim produces is straight
The full-wave rectifying circuit C of magnet exciting coil is provided it to after stream electric current.
According to this electric rotating machine 100, will sense at difference on the frequency induction coil Iim and harmonic wave
The faradic current of the exchange produced in coil Is is unidirectional current by full-wave rectifying circuit C rectification
Stream, thus enables that the magnet exciting coil WF of outer rotor 20 produces direct current flux and strengthened
Magnetic field effect.
It addition, in the electric rotating machine 100 of present embodiment, outer rotor 20 according to offer
To the Frequency Synchronization of the alternating current of stator 10 the 1st frequency F1 rotate, internal rotor 30 according to
2nd frequency F2 nonsynchronous with the 1st frequency rotates.
According to this electric rotating machine 100, it is possible to make outer rotor 20 according to be supplied to stator 10
1st frequency F1 of the Frequency Synchronization of alternating current rotates, and by outer rotor 20 and internal rotor
The magnetic flux variation of the revolutional slip frequency between 30 is formed between internal rotor 30 and outer rotor 20
Magnetic coupling, is delivered to outer rotor 20 by this magnetic coupling by the torque produced by internal rotor 30.
It addition, in the electric rotating machine 100 of present embodiment, internal rotor 30 has by two
Secondary excitation produces the magnet exciting coil 34 of magnetic flux, and the distribution of this magnet exciting coil 34 is wound in and includes number of poles
The rotor tooth 32 as multiple salient pole of groove 33 of 6 times.
So, multiple rotor tooths 32 of the groove 33 of include number of poles 6 times are distributed winding to encourage
Magnetic coil 34, therefore, it is possible to guarantee coil-span by this distribution winding, increases and excitation wire
The magnetic flux of circle 34 interlinkage, improves torque density.
According to this electric rotating machine 100, by the magnet exciting coil 34 of internal rotor 30 is carried out secondary
Excitation, thus utilize the 3rd time harmonic on outer rotor 20 and the magnetic flux of revolutional slip frequency
Change and make Excitation interference work, therefore, it is possible to increase the slip brought by revolutional slip frequency
Rate frequency energy.
Thus, under the synchronous mode of revolutional slip s=0, it is also possible to by internal rotor 30
Carry out secondary excitation and utilize the rotating excitation field produced by internal rotor 30 at internal rotor 30 with outer
Magnetic coupling is formed, it is possible to by this magnetic coupling by turning of being produced by internal rotor 30 between rotor 20
Square is delivered to outer rotor 20.
Use the hybrid electric drive system of electric rotating machine 100 of above-mentioned present embodiment in example
When situation about reducing such as accumulator capacity or situation etc. that accumulator is extremely low temperature state, the most logical
Drive electromotor just output shaft can be carried out energy transmission after efficiently, therefore, it is possible to will be mixed
Close power-driven system and be set to small-sized and efficient system.
It addition, the electric rotating machine 100 of present embodiment is in the mixing being applied to such as extended-range
In the case of power-driven system, with the existing electric power one that will be produced by generating electromotor
Denier inverter is supplied to the composition of driving motor and compares after carrying out direct current conversion, it is possible to use
Shorter path transmission energy, it is possible to realize miniaturization and the cost degradation of device, and energy
Enough improve energy transfer efficiency.
Although disclosing embodiments of the present invention, it is understood that those skilled in the art can
Apply change without departing from the scope of the invention.It is intended to all of this amendment
It is contained in claim with equivalent.
The electric rotating machine 100 of present embodiment is the internal rotor type of radial clearance structure, but
Can also be axial gap structure or outer-rotor structure.It addition, can make in each coil
With copper cash, aluminium conductor, litz wire.It addition, electric rotating machine 100 can not only be applied to mix
Close power car, additionally it is possible to be applied to other industrial circle such as wind-driven generator, lathe.
Claims (6)
1. an electric rotating machine, it has:
Stator, it produces the armature coil of magnetic flux when having supply alternating current；
1st rotor, it is located at the position leaning on rotation shaft side than said stator, by above-mentioned magnetic
Logical interlinkage rotates with the 1st frequency；And
2nd rotor, it is located at than above-mentioned 1st rotor by the position of above-mentioned rotation shaft side, according to
2nd frequency different from above-mentioned 1st frequency rotates,
Above-mentioned electric rotating machine is characterised by,
The inner side salient pole tool of the side relative with above-mentioned 2nd rotor is being located at by above-mentioned 1st rotor
Having difference on the frequency induction coil, this difference on the frequency induction coil and above-mentioned 1st frequency are with above-mentioned
The magnetic flux interlinkage of the difference on the frequency of the 2nd frequency,
Above-mentioned 1st rotor is in the radial direction of the outside salient pole being located at the side relative with said stator
Outer circumferential side has higher harmonics induction coil, this higher harmonics induction coil with in said stator
The higher harmonics interlinkage contained in the magnetic flux of middle generation,
Above-mentioned 1st rotor has magnet exciting coil in the radially inner circumference side of above-mentioned outside salient pole, by
The electric current that above-mentioned harmonic wave induction coil and said frequencies difference induction coil produce is supplied to
This magnet exciting coil.
Electric rotating machine the most according to claim 1, it is characterised in that
Above-mentioned 1st rotor has full-wave rectifying circuit, and this full-wave rectifying circuit is by above-mentioned harmonic wave
The alternating current rectification produced with induction coil and said frequencies difference induction coil is direct current
Above-mentioned magnet exciting coil it is supplied to after electric current.
3. according to the electric rotating machine described in claim 1 or claim 2, it is characterised in that
Above-mentioned 1st rotor rotates with the 1st frequency, the 1st frequency be supplied to said stator
The Frequency Synchronization of alternating current,
Above-mentioned 2nd rotor rotates with the 2nd frequency, and the 2nd frequency is different from above-mentioned 1st frequency
Step.
Electric rotating machine the most according to claim 1, it is characterised in that
Above-mentioned 2nd rotor has the magnet exciting coil being produced magnetic flux by secondary excitation, this excitation
Coil distribution is wound in multiple salient pole of the groove of 6 times that include number of poles.
Electric rotating machine the most according to claim 2, it is characterised in that
Above-mentioned 2nd rotor has the magnet exciting coil being produced magnetic flux by secondary excitation, this excitation
Coil distribution is wound in multiple salient pole of the groove of 6 times that include number of poles.
Electric rotating machine the most according to claim 3, it is characterised in that
Above-mentioned 2nd rotor has the magnet exciting coil being produced magnetic flux by secondary excitation, this excitation
Coil distribution is wound in multiple salient pole of the groove of 6 times that include number of poles.
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| JP2015-094981 | 2015-05-07 | ||
| JP2015094981A JP6424729B2 (en) | 2015-05-07 | 2015-05-07 | Electric rotating machine |
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| JP (1) | JP6424729B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107623418A (en) * | 2016-07-13 | 2018-01-23 | 铃木株式会社 | Electric rotating machine |
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| CN107370291B (en) * | 2017-08-23 | 2019-10-18 | 东阳市俊华电器销售有限公司 | A kind of magnetic control wheel based on electromagnetic propulsion system |
| US11329537B2 (en) * | 2019-05-02 | 2022-05-10 | X Development Llc | Super-synchronous motor/generator |
| JP7392677B2 (en) * | 2021-02-26 | 2023-12-06 | 株式会社豊田中央研究所 | electric drive device |
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| JPS5332567B2 (en) * | 1972-05-17 | 1978-09-08 | ||
| JP3364289B2 (en) * | 1993-10-20 | 2003-01-08 | 株式会社東芝 | Brushless Excitation Controller for Variable Speed Synchronous Motor |
| NL1020095C2 (en) | 2002-03-01 | 2003-09-02 | Tno | Electromechanical converter. |
| CN100495900C (en) * | 2006-12-15 | 2009-06-03 | 天津市新源电气科技有限公司 | Telescopic Double-rotor variable speed and variable frequency power generator |
| EP2072320A1 (en) * | 2007-12-18 | 2009-06-24 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | A method of operating an electromechnical converter, a controller and a computer program product |
| JP5261539B2 (en) | 2011-06-13 | 2013-08-14 | トヨタ自動車株式会社 | Electromagnetic rotating electric machine |
| CN202652019U (en) * | 2012-07-06 | 2013-01-02 | 王光顺 | Direct-grid-connected variable-speed constant-frequency generator |
| JP6142601B2 (en) * | 2013-03-19 | 2017-06-07 | スズキ株式会社 | Reluctance motor |
| JP6071783B2 (en) | 2013-07-10 | 2017-02-01 | 株式会社豊田中央研究所 | Power transmission device |
| JP6303311B2 (en) * | 2013-07-23 | 2018-04-04 | スズキ株式会社 | Synchronous reluctance motor |
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| CN107623418A (en) * | 2016-07-13 | 2018-01-23 | 铃木株式会社 | Electric rotating machine |
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| DE102016207781A1 (en) | 2016-11-10 |
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| CN106130278B (en) | 2018-11-20 |
| DE102016207781B4 (en) | 2024-05-16 |
| JP2016213948A (en) | 2016-12-15 |
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