CN108258956A - A kind of wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding - Google Patents
A kind of wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding Download PDFInfo
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- CN108258956A CN108258956A CN201810018939.9A CN201810018939A CN108258956A CN 108258956 A CN108258956 A CN 108258956A CN 201810018939 A CN201810018939 A CN 201810018939A CN 108258956 A CN108258956 A CN 108258956A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
Abstract
The invention discloses a kind of wide rotor toothing bearing-free switch magnetic-resistance generator control methods of simplex winding.The generator is three phase electric machine, and stator has 12 tooth poles, and stator tooth pole polar arc is 15 ° of mechanical angles, and each stator tooth is extremely upper to only have a set of coil, and each coil current is independent control；Rotor has 8 tooth poles, and rotor pole arc is 30 ° of mechanical angles, and rotor tooth extremely goes up no coil；Coil current is no more than rated current and electric current one-way is kept to ask for suspension phase winding bias current as additional conditions by the control methodI bEffective value range, and ask for optimal solution in the range, make suspension phase winding magnetic energy minimum；By detecting load voltage and pi regulator output signali g *, the reference current value as power generation phase stator tooth polar curve circle.The method of the present invention realizes the decoupling control that motor suspends with power generation, reduces the energy expenditure of field power supply in electricity generation system, improves generating efficiency, and inhibits the suspension disturbance that phase winding electric current generates that generates electricity.
Description
Technical field：
The invention belongs to technical field of motors, are related to a kind of wide rotor toothing bearing-free switch magnetic-resistance generator of simplex winding
Control method.
Background technology：
Bearing-free switch reluctance motor is a kind of technology for being combined magnetic suspension with switched reluctance machines, and electric machine structure is simple
List, fault-tolerance are strong, and eliminate the use of mechanical bearing, convenient for safeguarding, increase motor service life, are sent out in aerospace
There is application prospect in electrical domain.
At home, Nanjing Aero-Space University successfully has developed double winding bearing-free switch magnetic-resistance generator, the generator
For three phase electric machine, stator has 12 teeth, and the polar arc angle of each tooth is 15 °, and each stator tooth is extremely upper, and there are two coils；Rotor has 8
A tooth, the polar arc angle of each tooth is 15 °, the extremely upper no winding of rotor tooth.Per phase stator tooth extremely on exterior loop differential concatenation structure
Into generating winding, and four stator tooths extremely on interior loop mutually disconnect, each coil current independent control, to provide excitation magnetic
.In motor rotary course, rotor tooth pole overlapping area changes, and then changes generating winding magnetic linkage size, so as to
Alternating current impression electromotive force is generated, by rectifier, direct current can be provided to load.However, in double winding bearing-free switch magnetic-resistance
In generator, because of the extremely upper coil containing there are two of each stator tooth, the usage amount of copper is increased.Control stator tooth pole interior lines loop current
When, it does not need only be such that motor stabilizing suspends, also wants steady load voltage so that motor control is complex.
Separated exciting changed power device is often applied in switch reluctance generator system, and the electric energy of field power supply input will most
It is returned to load eventually, this increases the energy expenditure of field power supply to a certain extent, reduces the generating efficiency of system.
Invention content：
The technical problems to be solved by the invention are for overcome the deficiencies in the prior art, propose a kind of wide rotor of simplex winding
Toothing bearing-free switch magnetic-resistance generator control method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is as follows：
A kind of wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding, the wide rotor tooth of simplex winding
Structure bearing-free switch magnetic-resistance generator includes motor stator, rotor and coil；
The motor stator uses salient-pole structure, has 12 teeth, the polar arc angle of each tooth is 15 °；
The rotor uses salient-pole structure, has 8 teeth, the polar arc angle of each tooth is 30 °；
The coil shares 12, and each coil is wrapped on motor stator tooth, is disconnected each other, and each coil current is equal
For independent control；
The wide rotor toothing bearing-free switch magnetic-resistance generator of simplex winding is three-phase system motor, per phase winding all by four
A coil being spatially separated by 90 ° of stator tooth is formed, and the magnetic flux in every phase winding is distributed in NSNS；
Winding described in per phase, when its each coil inductance is constant with rotor-position, which is used as suspending windings；When it
When each coil inductance declines with rotor-position, which is used as generating winding；When its each coil inductance rises with rotor-position
When, which does not work；
The suspending windings establish rectangular coordinate system according to its position of four coils in space, and reference axis claims respectively
For X-axis and Y-axis；
The wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding, is as follows：
Step A, by the difference of given machine shaft displacement and real electrical machinery shaft displacement by PID regulator, output X-axis with
Given suspending power F in Y directionX *、FY *；Work as FX *During more than zero, F is representedX *It is directed toward X-axis positive direction；Work as FY *During more than zero, table
Show FY *It is directed toward Y-axis positive direction；
Parameter I is obtained in step BbValue range (imin,imax)；
When | FX *|≥|FY *| when,With
When | FY *|≥|FX *| when,With
Wherein K be only with the relevant constant of motor size, InIt is rated current of motor；
Then：
IfWhen, it takes
IfTake Ib=imin；
IfTake Ib=imax；
Step C obtains suspending windings reference current value；
According to formula
With
I is obtained respectivelys1 *、is2 *、is3 *And is4 *, is1 *、is2 *、is3 *And is4 *The positive electricity of X-axis of suspending windings is represented respectively
Stream, Y-axis forward current, X-axis negative current and Y-axis negative current；
Step D by the difference of given load voltage and actual load voltage by pi regulator, obtains the generating winding ginseng
Examine current value ig *；
Step E, using Hysteresis control, by suspending windings current control in suspending windings reference current value, by generating winding
Current control is in generating winding reference current value.
The present invention proposes a kind of wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding, using this
The technical solution of invention, has the following technical effect that：
(1) stator poles arc angle is set as 15 ° by the present invention, and rotor pole arc angle is set as being 30 °, can realize suspension and hair
Electrolysis coupling controls；
(2) present invention uses the method that each coil current is independent control so that motor control is more flexible；
(3) the wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding that the present invention uses reduces power generation
The energy expenditure of field power supply in system improves generating efficiency.
Description of the drawings
Fig. 1 is the three dimensional structure diagram of the wide rotor toothing bearing-free switch magnetic-resistance generator of simplex winding.
Fig. 2 is A phase winding schematic diagrames.
Fig. 3 is A phase winding inductance schematic diagrames.
Fig. 4 is A phase winding current waveform figures.
Fig. 5 is a kind of frame of the wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding of the present invention
Figure.
Fig. 6 is the changed power device schematic diagram that A phase windings use.
In Fig. 1-Fig. 6,1 is motor stator, and 2 be rotor, and 3 be winding, and T1, T2, T3, T4, T5, T6, T7, T8 are
MOS power tubes, wherein T1, T3, T5, T7 are known as bridge arm upper tube, and T2, T4, T6, T8 are known as bridge arm down tube, D1, D2, D3, D4, D5,
D6, D7, D8 be fly-wheel diode, C1, C2 be electric capacity of voltage regulation, usFor field power supply, RLFor ohmic load, x*, y* are horizontal direction
With the given displacement in vertical direction, x, y are the actual displacement in horizontal direction and vertical direction, UL *To give load voltage,
ULFor actual load voltage, FX *、FY *Respectively horizontal direction and the given suspending power in vertical direction, ig *Join for generation current
Value is examined, θ is rotor position angle, and I* is the composite signal of levitating current reference value and generation current reference value, and I is levitating current electricity
Flow the composite signal of actual value and generation current actual value.
Specific embodiment：
Below in conjunction with the accompanying drawings to a kind of wide rotor toothing bearing-free switch magnetic-resistance generator control side of simplex winding of the present invention
The technical solution of method is described in detail：
As shown in Figure 1, the three dimensional structure diagram of the wide rotor toothing bearing-free switch magnetic-resistance generator of simplex winding,
In, 1 it is motor stator, 2 be rotor, 3 is coil；
The motor stator is formed by silicon steel plate stacking, using salient-pole structure, there is 12 teeth, the polar arc angle of each tooth is
15°；
The rotor is formed by silicon steel plate stacking, using salient-pole structure, there is 8 teeth, the polar arc angle of each tooth is
30°；
The coil shares 12, and each coil is wrapped on motor stator tooth, is disconnected each other, and each coil current is equal
For independent control；
The wide rotor toothing bearing-free switch magnetic-resistance generator of simplex winding is three-phase system motor, per phase winding by four
The coil being spatially separated by 90 ° of stator tooths is formed, and the magnetic flux in every phase winding is distributed in NSNS.
As shown in Fig. 2, A phase winding schematic diagrames, A phase windings are made of A1, A2, A3 and A4 stator tooth polar curve circle, this four
Coil is spatially separated by 90 °, and mutually disconnects, each equal independent control of coil current；Exist according to A four coils of phase winding
Relative position in space establishes rectangular coordinate system, and reference axis is respectively X-axis and Y-axis, wherein A1 and A3 stator tooths polar curve circle point
Not Wei Yu X-axis positive direction and X-axis negative direction, A2 and A4 stator tooth polar curves circle respectively be located at Y-axis positive direction and Y-axis negative direction；
As shown in figure 3, A phase winding inductance schematic diagrames, if using rotor tooth polar axis line overlapping positions as 0 ° of angle, (-
22.5 °, -7.5 °) in, winding inductance rises with rotor-position, and A phase windings do not work at this time；In (- 7.5 °, 7.5 °), winding
Inductance is remained unchanged with rotor-position, and A phase windings work as suspending windings；In (7.5 °, 22.5 °), winding inductance is with turning
Sub- position declines, and A phase windings work as generating winding.
As shown in figure 4, A phase winding current waveform figures, in (- 7.5 °, 7.5 °), A phase windings are used as suspending windings,
A1, A2, A3 and A4 tooth polar curve loop current are controlled respectively in is1 *、is2 *、is3 *And is4 *；In (7.5 °, 22.5 °), A phase windings four
A coil current is all controlled in ig *Near；In (- 22.5 °, -7.5 °), A phase windings are in off state.
As shown in figure 5, a kind of wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding of the present invention
Frame diagram measures the actual displacement of motor in the horizontal direction and the vertical direction, and by it with giving using current vortex sensor
The difference of displacement adjusts output level direction and the given suspending power F in vertical direction by PIDX *、FY *；When | FX *|≥|FY *| when,
According to inequalityParameter I is obtainedbValue range；When | FY *|≥|FX *| when, according to differ
FormulaParameter I is obtainedbValue range, wherein K be only with the relevant constant of motor size, In
It is rated current of motor；Enable the I being finally obtainedbValue range is (imin,imax), then whenWhen,
It takesIfTake Ib=imin；IfTake Ib
=imax.According to formulaI is obtaineds1 *、is2 *、
is3 *、is4 *, is1 *、is2 *、is3 *And is4 *The X-axis forward current, Y-axis forward current, X-axis negative current of suspending windings are represented respectively
With Y-axis negative current；The difference of given load voltage and actual load voltage is passed through into PI controller output signals ig *, as suspension
The reference current of four coils of winding.
As shown in fig. 6, the changed power device schematic diagram that A phase windings use, in (- 22.5 °, -7.5 °), A phase windings are not
Work, the upper down tube of each bridge arm are in cut-off state together；In (- 7.5 °, 7.5 °), A phase windings as suspending windings, if
Each coil actual current is more than the difference of reference current and stagnant ring ring width, then bridge arm upper tube is ended, down tube conducting, otherwise on bridge arm
Down tube simultaneously turns on；In (7.5 °, 22.5 °), A phase windings are as generating winding, if each coil actual current is more than reference
The sum of electric current and stagnant ring ring width, then down tube is ended simultaneously on bridge arm, and otherwise upper tube is ended, down tube conducting.
Claims (1)
1. a kind of wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding, the wide rotor tooth knot of simplex winding
Structure bearing-free switch magnetic-resistance generator includes motor stator, rotor and coil；
The motor stator uses salient-pole structure, has 12 teeth, the polar arc angle of each tooth is 15 °；
The rotor uses salient-pole structure, has 8 teeth, the polar arc angle of each tooth is 30 °；
The coil shares 12, and each coil is wrapped on motor stator tooth, is disconnected each other, and each coil current is only
Vertical control；
The wide rotor toothing bearing-free switch magnetic-resistance generator of simplex winding is three-phase system motor, per phase winding all by four skies
Between on be separated by coil on 90 ° of stator tooth and form, per phase winding in magnetic flux in NSNS distributions；
Winding described in per phase, when its each coil inductance is constant with rotor-position, which is used as suspending windings；When its each line
When circle inductance declines with rotor-position, which is used as generating winding；It, should when its each coil inductance rises with rotor-position
Phase winding does not work；
The suspending windings establish rectangular coordinate system according to its position of four coils in space, and reference axis is referred to as X-axis
And Y-axis；
The wide rotor toothing bearing-free switch magnetic-resistance generator control method of simplex winding, which is characterized in that its specific steps
It is as follows：
Step A by the difference of given machine shaft displacement and real electrical machinery shaft displacement by PID regulator, exports X-axis and Y-axis
Given suspending power F on directionX *、FY *；Work as FX *During more than zero, F is representedX *It is directed toward X-axis positive direction；Work as FY *During more than zero, represent
FY *It is directed toward Y-axis positive direction；
Parameter I is obtained in step BbValue range (imin,imax)；
When | FX *|≥|FY *| when,With
When | FY *|≥|FX *| when,With
Wherein K be only with the relevant constant of motor size, InIt is rated current of motor；
Then：
IfWhen, it takes
IfTake Ib=imin；
IfTake Ib=imax；
Step C obtains suspending windings reference current value；
According to formula
With
I is obtained respectivelys1 *、is2 *、is3 *And is4 *；is1 *、is2 *、is3 *And is4 *X-axis forward current, the Y of suspending windings are represented respectively
Axis forward current, X-axis negative current and Y-axis negative current；
Step D by the difference of given load voltage and actual load voltage by pi regulator, obtains the generating winding with reference to electricity
Flow valuve ig *；
Step E, using Hysteresis control, by suspending windings current control in suspending windings reference current value, by generating winding electric current
Control is in generating winding reference current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018939.9A CN108258956B (en) | 2018-01-09 | 2018-01-09 | Control method of single-winding wide-rotor-tooth-structure bearingless switched reluctance generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018939.9A CN108258956B (en) | 2018-01-09 | 2018-01-09 | Control method of single-winding wide-rotor-tooth-structure bearingless switched reluctance generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108258956A true CN108258956A (en) | 2018-07-06 |
| CN108258956B CN108258956B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810018939.9A Active CN108258956B (en) | 2018-01-09 | 2018-01-09 | Control method of single-winding wide-rotor-tooth-structure bearingless switched reluctance generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211657A (en) * | 2020-02-21 | 2020-05-29 | 南京航空航天大学 | Axial disc type five-degree-of-freedom suspension bearingless switched reluctance motor |
| CN113113994A (en) * | 2021-04-12 | 2021-07-13 | 南京邮电大学 | Bearingless switched reluctance motor, power converter and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021103A1 (en) * | 2000-05-26 | 2002-02-21 | Giuseppe Grasso | Method and system for driving switched reluctance motors (SRM) |
| CN103296935A (en) * | 2013-05-28 | 2013-09-11 | 南京航空航天大学 | Composite-structure bearingless switched reluctance motor and control method thereof |
| CN104184286A (en) * | 2014-08-05 | 2014-12-03 | 南京工程学院 | Magnetic suspension switch magnetic resistance flywheel motor and control method |
-
2018
- 2018-01-09 CN CN201810018939.9A patent/CN108258956B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021103A1 (en) * | 2000-05-26 | 2002-02-21 | Giuseppe Grasso | Method and system for driving switched reluctance motors (SRM) |
| CN103296935A (en) * | 2013-05-28 | 2013-09-11 | 南京航空航天大学 | Composite-structure bearingless switched reluctance motor and control method thereof |
| CN104184286A (en) * | 2014-08-05 | 2014-12-03 | 南京工程学院 | Magnetic suspension switch magnetic resistance flywheel motor and control method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211657A (en) * | 2020-02-21 | 2020-05-29 | 南京航空航天大学 | Axial disc type five-degree-of-freedom suspension bearingless switched reluctance motor |
| CN113113994A (en) * | 2021-04-12 | 2021-07-13 | 南京邮电大学 | Bearingless switched reluctance motor, power converter and control method |
| CN113113994B (en) * | 2021-04-12 | 2022-04-15 | 南京邮电大学 | Bearingless switched reluctance motor, power converter and control method |
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| Publication number | Publication date |
|---|---|
| CN108258956B (en) | 2020-05-19 |
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