CN104065223A - Large-capacity high-speed switch reluctance motor - Google Patents
Large-capacity high-speed switch reluctance motor Download PDFInfo
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- CN104065223A CN104065223A CN201410243481.9A CN201410243481A CN104065223A CN 104065223 A CN104065223 A CN 104065223A CN 201410243481 A CN201410243481 A CN 201410243481A CN 104065223 A CN104065223 A CN 104065223A
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- rotor
- reluctance motor
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- switch reluctance
- driving power
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Abstract
The invention relates to a large-capacity high-speed switch reluctance motor. The large-capacity high-speed switch reluctance motor comprises a stator and a rotor; the rotor is of a structure composed of six salient poles; a concentration coil sleeves each salient pole of the stator; the coils on every two salient poles which are opposite in spatial location are clockwise connected in series to form an one-phase winding; the six salient poles form three windings; the rotor is of a structure composed of four salient poles and is formed by overlapping silicon steel sheets. The large-capacity high-speed switch reluctance motor further comprises a driving power supply that controls three controlled items, namely, set current, turn-on angle and turn-off angle according to different rotating speeds or loads, and accordingly the torque required can be obtained, and as a result, the speed regulated running of the large-capacity high-speed switch reluctance motor is realized. According to the large-capacity high-speed switch reluctance motor, the reluctance of a magnetic circuit is large as rotor rotates; a driving power supply of the switch reluctance motor is designed to support driving; a variable frequency single-polarity pulse current is output by the driving power supply; the self-control type variable frequency speed-regulated running of the switch reluctance motor is realized, and the purpose of small wind friction loss is realized. The formula is described in the specification.
Description
Technical field
The present invention relates to a kind of motor, be specifically related to a kind of Fast Switch with Large Capacity reluctance motor.
Background technology
SRD mainly consists of switched reluctance motor, power inverter, controller, current detector and position detector, wherein, switched reluctance motor is the parts of realizing energy converting between mechanical, it follows magnetic flux always will be along the principle of the path closure of magnetic conductance maximum, by magnetic pull effect, produced the electromagnetic torque with magnetic resistance character, by power inverter, provide running required energy, by the powered by direct current obtaining after storage battery or AC rectification.Switched reluctance motor winding current is unidirectional, therefore power converter construction form is relevant with the number of phases, the winding configuration of switched reluctance motor, and the structure of power inverter and the selection of switching device directly have influence on performance and the cost of switch magnetic-resistance motor system.
During the switched reluctance motor rotor of prior art, the magnetic resistance of magnetic circuit is little, and when high speed, its wind moussing loss is very large.
Summary of the invention
The object of the invention is in order to overcome above-mentioned defect the Fast Switch with Large Capacity reluctance motor that when a kind of rotor is provided, the magnetic resistance of magnetic circuit is large, wind moussing loss is little.
For achieving the above object, the high water head Fast Switch with Large Capacity reluctance motor of the present invention's design, comprise stator and rotor, described stator is 6 salient-pole structures, on each salient pole of described stator, cover has concentrating coil, a coil clockwise direction phase winding in series on the relative salient pole in every two locus, 6 salient poles form three windings; Described rotor is 4 salient-pole structures, rotor is formed by silicon steel plate stacking, also comprise driving power, the control method of described driving power is: Fast Switch with Large Capacity reluctance motor is when starting and while bringing into operation, and driving power adopts current chopping control to make Fast Switch with Large Capacity reluctance motor running current be controlled at setting electric current
, switched reluctance motor is when the running that enters normality, by changing turn-on angle
and the pass angle of rupture
reach required electric current, described driving power is according to the different value of rotating speed or load, to setting electric current
, turn-on angle
and the pass angle of rupture
these three controlled quentity controlled variables are controlled, and obtain required torque, thereby realize the speed governing operation of Fast Switch with Large Capacity reluctance motor.
In technique scheme, the method for described stator and rotor operation is: when stator A phase winding is switched on, magnetic flux is closed along the path of magnetic resistance minimum always, makes rotor turn to rotor 1,3 utmost point and stators
,
utmost point alignment; When the power-off of A phase, B switch on mutually, the magnetic attraction that B phase current produces attracts rotor 2,4 utmost points, makes rotor rotate counterclockwise 30 °, makes rotor 2,4 utmost point and stators
,
utmost point alignment, then the power-off of B phase, C are switched on mutually, rotor turns over 30 ° counterclockwise, then makes the power-off of C phase, gets back to the energising of A phase winding, rotor 4,2 utmost point and stators during balance
,
utmost point alignment, an energising cycle makes rotor in space, turn over a tooth pitch, according to above-mentioned method, moves in circles, stator is pressed the order energising of A-B-C-A, motor is by counterclockwise rotation, and when the order energising that stator is pressed A-C-B-A, motor rotates in the direction of the clock.
The Fast Switch with Large Capacity reluctance motor that the present invention opens is a kind of adjustable-speed motor with wide speed regulating range, when the energising frequency of the every phase winding of motor stator is
ftime, each electricity cycle rotor turns over a rotor polar distance, and turn over each second
findividual rotor polar distance, i.e. per second turning over
turn.The pass of the rotating speed of motor and winding energising frequency is
during rotor, the magnetic resistance of magnetic circuit is large, the driving power design supporting driving with it of switched reluctance motor, and what driving power was exported is variable-frequency unipolar pulse electric current, realize the autocontrol frequency control operation of switched reluctance machines, reach the object that wind moussing loss is little.
Accompanying drawing explanation
Fig. 1 is stator of the present invention and rotor structure schematic diagram;
Fig. 2 is driving power control principle drawing of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fast Switch with Large Capacity reluctance motor as shown in Figure 1, comprise stator and rotor, stator is 6 salient-pole structures, on each salient pole of described stator, cover has concentrating coil, a coil clockwise direction phase winding in series on the relative salient pole in every two locus, 6 salient poles form three windings; Described rotor is 4 salient-pole structures, rotor is formed by silicon steel plate stacking, also comprise driving power, the control method of described driving power as shown in Figure 2, Fast Switch with Large Capacity reluctance motor is when starting and while bringing into operation, and driving power adopts current chopping control to make Fast Switch with Large Capacity reluctance motor running current be controlled at setting electric current
, switched reluctance motor is when the running that enters normality, by changing turn-on angle
and the pass angle of rupture
reach required electric current, described driving power is according to the different value of rotating speed or load, to setting electric current
, turn-on angle
and the pass angle of rupture
these three controlled quentity controlled variables are controlled, and obtain required torque, thereby realize the speed governing operation of Fast Switch with Large Capacity reluctance motor.
The method of stator and rotor operation is: when stator A phase winding is switched on, magnetic flux is closed along the path of magnetic resistance minimum always, makes rotor turn to rotor 1,3 utmost point and stators
,
utmost point alignment; When the power-off of A phase, B switch on mutually, the magnetic attraction that B phase current produces attracts rotor 2,4 utmost points, makes rotor rotate counterclockwise 30 °, makes rotor 2,4 utmost point and stators
,
utmost point alignment, then the power-off of B phase, C are switched on mutually, rotor turns over 30 ° counterclockwise, then makes the power-off of C phase, gets back to the energising of A phase winding, rotor 4,2 utmost point and stators during balance
,
utmost point alignment, an energising cycle makes rotor in space, turn over a tooth pitch, according to above-mentioned method, moves in circles, stator is pressed the order energising of A-B-C-A, motor is by counterclockwise rotation, and when the order energising that stator is pressed A-C-B-A, motor rotates in the direction of the clock.
SRD mainly consists of switched reluctance motor, power inverter, controller, current detector and position detector, wherein: power inverter provides running required energy to switched reluctance motor, by the powered by direct current obtaining after storage battery or AC rectification.Because switched reluctance motor winding current is unidirectional, make its power inverter main circuit very simple, its version is relevant with the number of phases, the winding configuration of switched reluctance motor, and the structure of power inverter and the selection of switching device directly have influence on performance and the cost of system.Its Main Function has:
(1), to switched reluctance motor electric energy transmitting, meet the needs of energy converting between mechanical;
(2) play on-off action, make the in good time break-make of each phase winding of switched reluctance motor;
(3) energy storage for each phase winding of switched reluctance motor provides feedback path.
The winding of switched reluctance motor only needs unidirectional electric current, thus the power inverter of switched reluctance motor is simpler than asynchronous motor PWM frequency converter, reliable.The Topology Structure Design of main circuit is one of the key of the power inverter design of switched reluctance motor.The main circuit of switched reluctance motor open up mend structure have a variety of, as asymmetrical half-bridge formula, double winding power conversion, Split type DC power supply power inverter, chopped mode band storage capacitors power inverter, regenerative power inverter.In native system, select conventional asymmetrical half-bridge formula circuit.Because switched reluctance motor used in this system is three-phase 6/4SR motor, the number of phases is less, therefore applicable asymmetry half-bridge circuit.And each alternate independence of this circuit, can reduce the difficulty in control like this.Controller is the maincenter of system, the feedback information of integrated treatment speed command, feedback speed signal and current sensor, position transducer, and the operating state of main switching device in power ratio control converter, realizes the control to switched reluctance motor running status.Its performance quality directly has influence on the runnability of motor.
Detecting unit is comprised of position probing and current detecting link.Thereby provide the positional information of rotor to determine turning on and off of each phase winding, provide current information to complete current tracking and control or take corresponding safeguard measure to prevent overcurrent.
Wherein excitation winding is and the Circular Winding of rotor coaxial, is connected with direct current in it.Armature winding is classical three-phase symmetric winding, and stream has three-phase symmetrical alternating current.Rotor is solid core, by steel alloy, is forged and is formed.The axis of left-half and the right half part 180 degree electrical degrees that stagger on locus.Stator core is the silicon steel sheet of fluting, and left-half is identical with right half part.Support is a part for magnetic circuit.
High-voltage energy storage generator adopts salient-pole structure, and during high speed, its wind moussing loss is very large, so system adopts the integrated vacuum motor of switching magnetic-resistance-high-voltage energy storage generator.Be about to switched reluctance machines and be connected with the support of high-voltage generator, form the environment of a sealing, and adopt vacuum pump extracting vacuum, its wind moussing loss while having greatly reduced high speed.
Claims (2)
1. a Fast Switch with Large Capacity reluctance motor, comprise stator and rotor, it is characterized in that: described stator is 6 salient-pole structures, on each salient pole of described stator, cover has concentrating coil, a coil clockwise direction phase winding in series on the relative salient pole in every two locus, 6 salient poles form three windings; Described rotor is 4 salient-pole structures, rotor is formed by silicon steel plate stacking, also comprise driving power, the control method of described driving power is: Fast Switch with Large Capacity reluctance motor is when starting and while bringing into operation, and driving power adopts current chopping control to make Fast Switch with Large Capacity reluctance motor running current be controlled at setting electric current
, switched reluctance motor is when the running that enters normality, by changing turn-on angle
and the pass angle of rupture
reach required electric current, described driving power is according to the different value of rotating speed or load, to setting electric current
, turn-on angle
and the pass angle of rupture
these three controlled quentity controlled variables are controlled, and obtain required torque, thereby realize the speed governing operation of Fast Switch with Large Capacity reluctance motor.
2. Fast Switch with Large Capacity reluctance motor according to claim 1, it is characterized in that: the method for described stator and rotor operation is: when stator A phase winding is switched on, magnetic flux is closed along the path of magnetic resistance minimum always, makes rotor turn to rotor 1,3 utmost point and stators
,
utmost point alignment; When the power-off of A phase, B switch on mutually, the magnetic attraction that B phase current produces attracts rotor 2,4 utmost points, makes rotor rotate counterclockwise 30 °, makes rotor 2,4 utmost point and stators
,
utmost point alignment, then the power-off of B phase, C are switched on mutually, rotor turns over 30 ° counterclockwise, then makes the power-off of C phase, gets back to the energising of A phase winding, rotor 4,2 utmost point and stators during balance
,
utmost point alignment, an energising cycle makes rotor in space, turn over a tooth pitch, according to above-mentioned method, moves in circles, stator is pressed the order energising of A-B-C-A, motor is by counterclockwise rotation, and when the order energising that stator is pressed A-C-B-A, motor rotates in the direction of the clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243481.9A CN104065223A (en) | 2014-06-04 | 2014-06-04 | Large-capacity high-speed switch reluctance motor |
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|---|---|---|---|
| CN201410243481.9A CN104065223A (en) | 2014-06-04 | 2014-06-04 | Large-capacity high-speed switch reluctance motor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772155A (en) * | 2016-12-20 | 2017-05-31 | 江苏大学 | A kind of method for rapidly judging of switched reluctance machines pole polarity |
| CN106849577A (en) * | 2015-11-05 | 2017-06-13 | 波音公司 | Vortex flow repels motor |
| CN107546946A (en) * | 2017-10-17 | 2018-01-05 | 河南理工大学 | A kind of m phases stator winding switched reluctance machines and driving method, pole changing method |
| CN108036269A (en) * | 2017-12-02 | 2018-05-15 | 胡张容 | A kind of electromagnetism is oriented to revolving light |
| CN108933508A (en) * | 2018-08-31 | 2018-12-04 | 南京埃克锐特机电科技有限公司 | A kind of High speed SRM |
| CN113839529A (en) * | 2021-10-30 | 2021-12-24 | 漳州市振辉电机制造有限公司 | Rotor formed by one-time stamping and manufacturing method thereof |
| CN114337456A (en) * | 2021-12-31 | 2022-04-12 | 西比里电机技术(苏州)有限公司 | Low-cost asymmetric half-bridge topology circuit of two-phase motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02237493A (en) * | 1989-02-14 | 1990-09-20 | Emerson Electric Co | Change over reluctance motor and its operating method |
-
2014
- 2014-06-04 CN CN201410243481.9A patent/CN104065223A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02237493A (en) * | 1989-02-14 | 1990-09-20 | Emerson Electric Co | Change over reluctance motor and its operating method |
Non-Patent Citations (3)
| Title |
|---|
| 徐仲春: "开关磁阻电机起动/发电控制技术研究", 《万方数据》 * |
| 李柏松: "开关磁阻电机直接转矩控制策略的研究", 《万方数据》 * |
| 樊继东: "基于DSP的开关磁阻电机控制策略研究", 《万方数据》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849577A (en) * | 2015-11-05 | 2017-06-13 | 波音公司 | Vortex flow repels motor |
| CN106772155A (en) * | 2016-12-20 | 2017-05-31 | 江苏大学 | A kind of method for rapidly judging of switched reluctance machines pole polarity |
| CN106772155B (en) * | 2016-12-20 | 2019-11-05 | 江苏大学 | A kind of method for rapidly judging of switched reluctance machines pole polarity |
| CN107546946A (en) * | 2017-10-17 | 2018-01-05 | 河南理工大学 | A kind of m phases stator winding switched reluctance machines and driving method, pole changing method |
| CN107546946B (en) * | 2017-10-17 | 2023-08-18 | 河南理工大学 | M-phase stator winding switch reluctance motor, driving method and pole changing method |
| CN108036269A (en) * | 2017-12-02 | 2018-05-15 | 胡张容 | A kind of electromagnetism is oriented to revolving light |
| CN108933508A (en) * | 2018-08-31 | 2018-12-04 | 南京埃克锐特机电科技有限公司 | A kind of High speed SRM |
| CN108933508B (en) * | 2018-08-31 | 2020-04-07 | 南京埃克锐特机电科技有限公司 | High-speed switched reluctance motor |
| CN113839529A (en) * | 2021-10-30 | 2021-12-24 | 漳州市振辉电机制造有限公司 | Rotor formed by one-time stamping and manufacturing method thereof |
| CN114337456A (en) * | 2021-12-31 | 2022-04-12 | 西比里电机技术(苏州)有限公司 | Low-cost asymmetric half-bridge topology circuit of two-phase motor |
| CN114337456B (en) * | 2021-12-31 | 2023-08-15 | 西比里电机技术(苏州)有限公司 | Asymmetric half-bridge topology circuit of two-phase motor |
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Application publication date: 20140924 |