CN101534026A - Switched reluctance motor with bipolar excitation 8/6 structure sectional rotor - Google Patents
Switched reluctance motor with bipolar excitation 8/6 structure sectional rotor Download PDFInfo
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- CN101534026A CN101534026A CN200910031225A CN200910031225A CN101534026A CN 101534026 A CN101534026 A CN 101534026A CN 200910031225 A CN200910031225 A CN 200910031225A CN 200910031225 A CN200910031225 A CN 200910031225A CN 101534026 A CN101534026 A CN 101534026A
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- 230000005284 excitation Effects 0.000 title claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 77
- 230000011218 segmentation Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 230000004907 flux Effects 0.000 description 10
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- 210000000515 tooth Anatomy 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
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Abstract
The invention discloses a switched reluctance motor with a bipolar excitation 8/6 structure sectional rotor, which belongs to the field of switched reluctance motors. The switched reluctance motor comprises a radial stator, stator windings, sectional rotor iron core blocks and a nonmagnetic rotor sleeve, wherein six sectional rotor iron core blocks are embedded in the nonmagnetic rotor sleeve to form a cylindrical rotor; the radial stator has a structure with eight teeth and eight grooves; the stator windings in two opposite grooves form a solenoid, each solenoid is a phase winding respectively, the number of the phase windings is four, and each phase winding is connected through a bipolar excitation four-phase H bridge topological circuit and is electrified during the period when the self inductance of each phase winding rises so that one working period of the motor is a 120-degree rotor position angle. The switched reluctance motor has the advantages of small wind (oil) resistance at high speed, low loss of iron cores and simple structure, and an excitation topology of the motor adopts a modularized H bridge circuit to save the cost.
Description
Technical field
The present invention relates to a kind of bipolarity excitation 8/6 structural segmented rotor switched reluctance motor, belong to the switched reluctance machines field of electric machinery.
Background technology
The version of switched reluctance machines can be multiple, but version commonly used mainly contains three kinds, i.e. 6/4 structure, 8/6 structure and 12/8 structure.
Switched reluctance machines simple in structure, firm, cost is low, reliable operation, control is flexible, fault-tolerant ability is strong, has advantages such as High Temperature And Velocity adaptability.But the wind resistance when switched reluctance machines salient-pole structure rotor makes high-speed cruising is big, oil cooling but under the condition resistance during high-speed cruising bigger, in order to reduce wind (oil) resistance, can increase rotor slot wedge or packing in rotor, though it is obvious to reduce the effect of wind (oil) resistance, but, also increased the complexity of rotor structure to the requirement height of technology.Simultaneously in order to raise the efficiency, reduce core loss, can adopt short magnetic circuit structural is that magnetic flux is extremely closed through adjacent stator and rotor tooth, but generally needs to adopt the more number of phases or more rotor number of poles, make the cost of motor and controller increase, and be not suitable for high-speed cruising.
Present 12/8 structure of research in the world and the three-phase on-off reluctance motor with sectional rotor of 6/4 structure, owing to adopt the stator winding of full groove distribution and the rotor of cylindrical structural, windage when making the rotor high-speed operation reduces greatly, distinctive short magnetic circuit characteristic makes core loss low, and it is the same that the magnetic of above two kinds of on-off reluctance motor with sectional rotor is encouraged topological sum regular tap reluctance motor, all can adopt classical asymmetrical half-bridge unipolarity excitation topological circuit.But four phase on-off reluctance motor with sectional rotor for 8/6 structure, because the magnetic circuit characteristic of the on-off reluctance motor with sectional rotor of 8/6 structure, as adopt asymmetrical half-bridge unipolarity excitation topological circuit, it is with cisco unity malfunction, so do not see the research report of four phase on-off reluctance motor with sectional rotor of 8/6 structure at present.
Summary of the invention
The technical problem to be solved in the present invention is the bipolarity excitation 8/6 structural segmented rotor switched reluctance motor that wind (oil) resistance is little when proposing a kind of high-speed cruising, core loss is low.
Bipolarity excitation 8/6 structural segmented rotor switched reluctance motor of the present invention, comprise radial stator, stator winding, segmentation rotor core piece and non-magnetic rotor cover, wherein: six segmentation rotor core pieces are embedded in the rotor of having formed cylindrical structural in the non-magnetic rotor cover, radial stator is octadentate eight groove structures, stator winding in two relative grooves is a line bag, each line bag is respectively a phase winding, be A, B, C, D four phase windings, each phase winding passes to forward or negative current by the four phase H bridge topological circuits connection of bipolarity excitation and in the self-induction rising stage of each phase winding, and a work period that makes motor is 120 ° of rotor position angles.
Bipolarity excitation 8/6 structural segmented rotor switched reluctance motor of the present invention adopts segmented cylindrical structural rotor assembly, wind (oil) resistance in the time of can obviously reducing high speed; Adopt bipolarity excitation scheme can make a work period of motor become the twice of unipolarity excitation 8/6 structure regular tap reluctance motor, the close fundamental frequency of stator core magnetic that is bipolarity excitation 8/6 structural segmented rotor switched reluctance motor is half of common unipolarity excitation 8/6 structure switch magnetic resistance motor, and the short magnetic circuit characteristic that adds on-off reluctance motor with sectional rotor makes the core loss of bipolarity excitation 8/6 structural segmented rotor switched reluctance motor obviously reduce; The topology of encouraging the magnetic of motor adopts modularization H bridge circuit, can reduce the construction cycle and save cost, and whole electric machine structure is simple, all has broad application prospects in various drive systems, and the fields such as Aero-Space and naval vessels that are applied to then have more significance.
Description of drawings
Fig. 1 is bipolarity excitation 8/6 a structural segmented rotor switched reluctance motor schematic cross-section of the present invention, number in the figure title: 1, radial stator; 2, stator winding; 3, rotor core piece; 4, non-magnetic rotor cover; A, B, C, D represent A, B, C, D four phase windings respectively.
Fig. 2 is four phase H bridge topological circuit schematic diagrams of bipolarity excitation 8/6 structural segmented rotor switched reluctance motor stator winding power inverter of the present invention, and designation among the figure: Us encourages power supply for direct current magnetic; C
mBe electric capacity; T1～T16 is a power switch pipe; D1～D16 is a diode; A, B, C, D represent A, the B, C, D four phase windings that connect respectively.
Fig. 3 is bipolarity excitation 8/6 each phase inductance of structural segmented rotor switched reluctance motor of the present invention and each phase current polarity schematic diagram.
Fig. 4 (a)～Fig. 4 (i) is bipolarity excitation 8/6 a structural segmented rotor switched reluctance motor operation principle schematic diagram of the present invention.
Embodiment
Figure 1 shows that bipolarity excitation 8/6 structural segmented rotor switched reluctance motor schematic cross-section of the present invention, comprise radial stator 1, stator winding 2, segmentation rotor core piece 3 and non-magnetic rotor cover 4, wherein: six segmentation rotor core pieces 3 are embedded in the rotor of having formed cylindrical structural in the non-magnetic rotor cover 4, radial stator 1 is octadentate eight groove structures, stator winding 2 in two relative grooves is a line bag, each line bag is respectively a phase winding, totally four phase windings promptly are respectively A, B, C, D four phase windings.
The power inverter of stator winding adopts four phase H bridge topological circuit structures, and as shown in Figure 2, direct current magnetic is encouraged power supply U
sPositive and negative two ends also connect capacitor C
m, every phase H bridge circuit is made up of two identical brachium pontis, and be attempted by direct current magnetic after each brachium pontis is connected by two power switch pipes and encourage the positive and negative two ends of power supply, and diode of the equal reverse parallel connection of each power switch pipe.First, two, three, the series connection point of two power switch pipes of four phase H bridges, first brachium pontis separately is connected in A successively, B, C, the end of incoming cables of D four phase windings, first, two, three, the series connection point of two power switch pipes of four phase H bridges, second brachium pontis separately is connected in A successively, B, C, the leading-out terminal of D four phase windings, wherein: second brachium pontis that first brachium pontis that the first phase H bridge is made up of power switch pipe T1 and T2 and power switch pipe T3 and T4 form constitutes, second brachium pontis that first brachium pontis that the second phase H bridge is made up of power switch pipe T5 and T6 and power switch pipe T7 and T8 form constitutes, second brachium pontis that first brachium pontis that third phase H bridge is made up of power switch pipe T9 and T10 and power switch pipe T11 and T12 form constitutes, and second brachium pontis that first brachium pontis that the 4th phase H bridge is made up of power switch pipe T13 and T14 and power switch pipe T15 and T16 form constitutes.
Fig. 3 is bipolarity excitation 8/6 each phase inductance of structural segmented rotor switched reluctance motor of the present invention and each phase current polarity schematic diagram.
Fig. 4 (a)～Fig. 4 (i) is bipolarity excitation 8/6 a structural segmented rotor switched reluctance motor operation principle schematic diagram of the present invention.Setting motor be running counterclockwise, and the definition electric current when flowing into leading-out terminal from the end of incoming cables of A, B, C, D four phase windings and flowing out electric current for just, otherwise be to bear.
Fig. 4 (a) is depicted as initial 0 ° of rotor-position, this moment, A was in the rising area of inductance separately mutually with B mutually, the A phase winding feeds forward current, the B phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (a): the magnetic flux that A phase winding and B phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (b) is depicted as 15 ° of rotor-positions, this moment, A was in the rising area of inductance separately mutually with D mutually, the A phase winding feeds forward current, the D phase winding feeds forward current, and it produces magnetic line of force shown in Fig. 4 (b): the magnetic flux that A phase winding and D phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (c) is depicted as 30 ° of rotor-positions, this moment, D was in the rising area of inductance separately mutually with C mutually, the D phase winding feeds forward current, the C phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (c): the magnetic flux that D phase winding and C phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (d) is depicted as 45 ° of rotor-positions, this moment, B was in the rising area of inductance separately mutually with C mutually, the B phase winding feeds forward current, the C phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (d): the magnetic flux that B phase winding and C phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (e) is depicted as 60 ° of rotor-positions, this moment, A was in the rising area of inductance separately mutually with B mutually, the B phase winding feeds forward current, the A phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (e): the magnetic flux that A phase winding and B phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (f) is depicted as 75 ° of rotor-positions, this moment, A was in the rising area of inductance separately mutually with D mutually, the A phase winding feeds negative current, the D phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (f): the magnetic flux that A phase winding and D phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (g) is depicted as 90 ° of rotor-positions, this moment, D was in the rising area of inductance separately mutually with C mutually, the C phase winding feeds forward current, the D phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (g): the magnetic flux that D phase winding and C phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (h) is depicted as 105 ° of rotor-positions, this moment, C was in the rising area of inductance separately mutually with B mutually, the C phase winding feeds forward current, the B phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (h): the magnetic flux that C phase winding and B phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (i) is depicted as 120 ° of rotor-positions, this moment, A was in the rising area of inductance separately mutually with B mutually, the A phase winding feeds forward current, the B phase winding feeds negative current, and it produces magnetic line of force shown in Fig. 4 (i): the magnetic flux that A phase winding and B phase winding produce through winding is adjacent separately two stator tooths and stator yoke therebetween, passes air gap between rotor respectively, enter rotor, form the closed-loop path, rotor is produced suction, the dragging motor rotor turns round counterclockwise.
Fig. 4 (a) is identical with the operating state of Fig. 4 (i), Fig. 4 (a) has finished a work period to Fig. 4 (i), i.e. 120 ° of work periods that the rotor mechanical position angle is bipolarity excitation 8/6 a structural segmented rotor switched reluctance motor of the present invention, it is the twice of a common work period of unipolarity excitation 8/6 structure switch magnetic resistance motor (60 °), so the close fundamental frequency of the stator core magnetic of bipolarity excitation 8/6 structural segmented rotor switched reluctance motor is common unipolarity excitation 8/6 structure switch magnetic resistance motor half.
By with upper type circulation each phase winding power supply, then make motor turn round counterclockwise constantly to bipolarity excitation 8/6 structural segmented rotor switched reluctance motor of the present invention.
Claims (1)
1, a kind of bipolarity excitation 8/6 structural segmented rotor switched reluctance motor, comprise radial stator (1), stator winding (2), segmentation rotor core piece (3) and non-magnetic rotor cover (4), it is characterized in that: described segmentation rotor core piece (3) is six segmentation rotor core pieces, and be embedded in the rotor of having formed cylindrical structural in the non-magnetic rotor cover (4), radial stator (1) is octadentate eight groove structures, stator winding (2) in two relative grooves is a line bag, each line bag is respectively a phase winding, totally four phase windings, every phase winding connects by bipolarity excitation four phase topological circuits, and a work period that makes motor is 120 ° of rotor position angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100312252A CN101534026B (en) | 2009-04-27 | 2009-04-27 | Switched reluctance motor with bipolar excitation 8/6 structure sectional rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100312252A CN101534026B (en) | 2009-04-27 | 2009-04-27 | Switched reluctance motor with bipolar excitation 8/6 structure sectional rotor |
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| Publication Number | Publication Date |
|---|---|
| CN101534026A true CN101534026A (en) | 2009-09-16 |
| CN101534026B CN101534026B (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100312252A Expired - Fee Related CN101534026B (en) | 2009-04-27 | 2009-04-27 | Switched reluctance motor with bipolar excitation 8/6 structure sectional rotor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929031A (en) * | 2013-01-11 | 2014-07-16 | 济南吉美乐电源技术有限公司 | Composite-excitation double-excitation winding split rotor magnetic flux switching double-salient pole brushless DC generator |
| CN104821697A (en) * | 2015-04-29 | 2015-08-05 | 江苏大学 | Fault-tolerant type four-phase switch reluctance motor used for driving of electric automobile |
| CN105391263A (en) * | 2015-12-10 | 2016-03-09 | 山东大学 | Block-based switched reluctance motor with short end part and short magnetic circuit and control circuit thereof |
| CN106026434A (en) * | 2016-07-07 | 2016-10-12 | 华晨汽车集团控股有限公司 | Switched reluctance motor with 8/9 structure |
| 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 |
| CN107240998A (en) * | 2017-05-17 | 2017-10-10 | 安徽弘浩节能科技有限公司 | The pole structure switch magnetic resistance motor polarity distribution method and its application of four phase 32/24 |
| CN108964391A (en) * | 2018-08-31 | 2018-12-07 | 南京埃克锐特机电科技有限公司 | A kind of pole 6n/5n on-off reluctance motor with sectional rotor |
| CN109450126A (en) * | 2018-11-26 | 2019-03-08 | 史政齐 | The short square winding electric machine of the short magnetic circuit of electric vehicle |
| CN109462296A (en) * | 2018-11-26 | 2019-03-12 | 史政齐 | Automobile electrical excitation and the double state motors of switching magnetic-resistance |
-
2009
- 2009-04-27 CN CN2009100312252A patent/CN101534026B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929031A (en) * | 2013-01-11 | 2014-07-16 | 济南吉美乐电源技术有限公司 | Composite-excitation double-excitation winding split rotor magnetic flux switching double-salient pole brushless DC generator |
| CN104821697A (en) * | 2015-04-29 | 2015-08-05 | 江苏大学 | Fault-tolerant type four-phase switch reluctance motor used for driving of electric automobile |
| CN105391263A (en) * | 2015-12-10 | 2016-03-09 | 山东大学 | Block-based switched reluctance motor with short end part and short magnetic circuit and control circuit thereof |
| CN106026434A (en) * | 2016-07-07 | 2016-10-12 | 华晨汽车集团控股有限公司 | Switched reluctance motor with 8/9 structure |
| 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 |
| CN107240998A (en) * | 2017-05-17 | 2017-10-10 | 安徽弘浩节能科技有限公司 | The pole structure switch magnetic resistance motor polarity distribution method and its application of four phase 32/24 |
| CN107240998B (en) * | 2017-05-17 | 2019-11-19 | 安徽弘浩节能科技有限公司 | Four phases, 32/24 pole structure switch magnetic resistance motor polarity distribution method and its application |
| CN108964391A (en) * | 2018-08-31 | 2018-12-07 | 南京埃克锐特机电科技有限公司 | A kind of pole 6n/5n on-off reluctance motor with sectional rotor |
| CN109450126A (en) * | 2018-11-26 | 2019-03-08 | 史政齐 | The short square winding electric machine of the short magnetic circuit of electric vehicle |
| CN109462296A (en) * | 2018-11-26 | 2019-03-12 | 史政齐 | Automobile electrical excitation and the double state motors of switching magnetic-resistance |
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| Publication number | Publication date |
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| CN101534026B (en) | 2011-03-30 |
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Granted publication date: 20110330 Termination date: 20110427 |