CN201414057Y - Biconvex pole mixture excitation generator - Google Patents
Biconvex pole mixture excitation generator Download PDFInfo
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- CN201414057Y CN201414057Y CN2009201076680U CN200920107668U CN201414057Y CN 201414057 Y CN201414057 Y CN 201414057Y CN 2009201076680 U CN2009201076680 U CN 2009201076680U CN 200920107668 U CN200920107668 U CN 200920107668U CN 201414057 Y CN201414057 Y CN 201414057Y
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Abstract
The utility model relates to a biconvex pole mixture excitation generator, which comprises two parts including a permanent magnet biconvex pole electric motor and an electric excitation biconvex poleelectric motor. One electric motor has an equivalent number of rotors and stators of the other electric motor, stator armature windings of the two electric motors (5) are connected in series with an electric excitation biconvex pole electric motor stator armature winding (1), and an excitation winding (2) is arranged on the electric excitation biconvex pole electric motor stator. Compared with theprior art, the biconvex pole mixture excitation generator has the advantages of no winding of the rotor, simple structure, high rotational speed, high operation efficiency, high electric excitation,and energy saving.
Description
Technical field
The utility model relates to a kind of double-convex pole hybrid excitation motor.
Background technology
The Ba Lagunuofu of Moscow aeronautical engineering institute professor proposed the structure of magnetic potential mixed excitation synchronous generator in parallel in 1988, stator is identical with common synchronous machine, and rotor is divided into two parts, and a part is a permanent magnet excitation, and another part is electric excitation.This motor characteristic feature: electric excitation division is divided into claw-pole structure, and additional air gap is many, axial magnetic circuit, and leakage field is big, and electric excitation function is restricted.
Japan doctor T.Mizuno etc. has proposed axial/radial magnetic circuit mixed excitation synchronous generator.The stator armature winding of this motor is common three-phase symmetric winding, and stator core is divided into two sections by stator ring DC excitation winding, and this two iron legs heart mechanically with on the magnetic is connected by its outer back of the body yoke (casing that is used for axial magnetic conduction); Rotor is separated into two parts also: N is extreme and S is extreme, and every interpole that is extremely formed by same polarity permanent-magnet pole and iron core is staggered, and the N at two ends, S permanent-magnet pole and interpole also are staggered.One solid flux sleeve letter (rotor back of the body yoke) is arranged between rotor core and rotating shaft, be used for the axial magnetic conduction of rotor.This motor characteristic feature: additional air gap is many, but is fixing air gap; Have the axial/radial magnetic circuit, electric machine structure optimization is tied.
Professor Lipo of Wisconsin-Madison university waits and has proposed a kind of axial magnetic field consequent pole mixed excitation electric machine structure.It is made of the annular stator core (wherein being embedded with the polyphase armature winding) of two flutings, two disk rotors, a DC excitation winding.At the rotor surface interpole that permanent-magnet pole and iron core form that is being staggered.This motor adds that the stator and rotor iron core all is divided into two sections owing to adopted interpole, and additional air gap is many, and power density and stock utilization are difficult to improve.
Also have a kind of mixed excitation biconvex pole motor T, it is to develop to come out on the basis of doubly salient permanent magnet motor, has kept whole advantages of doubly salient permanent magnet motor.This motor can be regulated air-gap field by the direction and the size of control exciting current.But electric energized circuit passes through permanent magnet, and electric excitation efficiency is low.
The old clear spring of Hong Kong University, professor Jiang Jianzhong of Shanghai Polytechnic Univ etc. have proposed a kind of Lundell hybrid exciting synchronous motor.The external stator of this motor and the stator of common electric machine are similar, are embedded with heterogeneous symmetric winding in the groove, and rotor adopts claw-pole structure, places permanent magnet between two adjacent pawl utmost points, is placed with annular DC excitation winding on internal stator.Because the DC excitation winding places in the formed zone, inside and outside unit by the pawl utmost point, space availability ratio height, compact conformation.But owing to there is axial magnetic circuit, electric excitation efficiency is low.
The utility model content
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provides a kind of rotor not have winding, and is simple in structure, can run on high rotating speed, high operational efficiency, electric excitation efficiency height, energy-conservation double-convex pole hybrid excitation motor.
The formation of double-convex pole hybrid excitation motor of the present utility model is: the corotation axle is housed in casing, have the stator number of teeth identical doubly salient permanent magnet motor and the electric excitation biconvex electrode electric machine identical with the rotor number of teeth, doubly salient permanent magnet motor stator armature winding is connected with electric excitation biconvex electrode electric machine stator armature windings in series, and the electric excitation biconvex electrode electric machine stator is provided with excitation winding.
Double-convex pole hybrid excitation motor of the present utility model compared with prior art has following characteristics:
1,, can adjust the ratio of electric excitation and permanent magnetism part core length according to the application scenario.Be convenient to realize the optimal design of electric machine structure, reach best energy-saving effect.
2, exciting current can two-wayly be controlled, and can adapt to wide speed of service requirement.
3, compare with existing mixed excitation electric machine, do not have axial magnetic circuit and additional air gap, electric excitation efficiency height.
4, do not have coil and permanent magnet on the rotor, can be used for high speed situation.
Description of drawings
Fig. 1 is the double-convex pole hybrid excitation motor structural representation, and wherein figure (a) is the overall structure schematic diagram, and figure (b) is the doubly salient permanent magnet motor structural representation of 6/4 pole hybrid excitation motor, and figure (c) is the electric excitation biconvex electrode electric machine structural representation.
Number in the figure title: 1, armature winding; 2, excitation winding; 3, permanent magnet; 4, casing; 5, armature winding; 6, rotating shaft; 7, rotor.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection range of the present utility model with this.
As shown in Figure 1, the concrete composition of double-convex pole hybrid excitation motor of the present utility model is: what corotation axle 6 was housed in casing 4 has the stator number of teeth identical doubly salient permanent magnet motor and an electric excitation biconvex electrode electric machine identical with the rotor number of teeth, the doubly salient permanent magnet motor stator armature winding 5 on the left side is connected in series with the right electric excitation biconvex electrode electric machine stator armature winding 1 among the figure, also be provided with excitation winding 2 on the electric excitation biconvex electrode electric machine stator, do not have winding on the rotor 7.
The operation principle of double-convex pole hybrid excitation motor:
Double-convex pole hybrid excitation motor both can be used as generator, also can be used as motor.The double-salient-pole mixed excitation generator operation principle
Double salient-pole electric machine has the electromotive force expression formula:
For double-salient-pole mixed excitation generator, its air-gap field is produced jointly by electric excitation air-gap field and permanent magnetism air-gap field.
When the rotating speed of double-salient-pole mixed excitation generator is lower, and load only relies on the permanent magnetism part when big, and the electromotive force of generator can not be kept certain output voltage with less.At this moment, on the excitation winding of electric excitation part, add a field power supply, make electricity excitation magnetic field play the effect that strengthens air-gap field.Be equivalent in the formula (1)
Increased, improved the electromotive force of generator, thereby guaranteed that output voltage meets load request.
Higher when the rotating speed of double-salient-pole mixed excitation generator, and load hour, only has permanent magnetism partly to work, and the electromotive force of generator is with excessive.At this moment, the sense of current of electric excitation winding can be reverse, makes electricity excitation magnetic field play the effect that weakens air-gap field, is equivalent in the formula (1)
Reduced, reduced the electromotive force of generator, thereby guaranteed certain output voltage.
Double salient-pole mixed excitation motor operation principle:
The electromagnetic torque expression formula of biconvex pole motor is:
In the motor during low cruise, for the starting torque that makes motor reaches maximum, except power supply provided maximum armature supply, electric excitation winding also will pass to electric current, and the effect that strengthens air-gap field is played in the magnetic field that exciting current is produced.
After motor speed is increased to certain numerical value, if keep same excitation field since the influence of back-emf (see formula (1), armature supply can descend by armature supply gradually, and the input electric power of motor can reduce.At this moment, must weaken excitation field, it is constant just to keep armature supply, so that rotating speed of motor can reach very high numerical value.For the double salient-pole mixed excitation motor, at first can reduce exciting current (until 0) gradually and satisfy the requirement that weakens excitation field; If rotating speed further raises, the electric current in the electric excitation winding can be reverse, thereby excitation field is further reduced, and realizes the speed regulating section of electronic machine width.
The advantage of double-convex pole hybrid excitation motor
1, rotor structure is simple, does not have winding on the rotor, can run on high rotating speed.
2, the ratio that accounts for of permanent magnet part core length is big, can reduce exciting power, realizes high-efficiency operation.Both ratio differences, motor excitation adjustable range difference.
3, compare with conventional magneto, because electric exciting current can forward and reversely be regulated the exportable constant voltage of generator operation; The motor operation can reach very wide permanent power bracket.And the more conventional magneto of electrical power that the weak magnetic of electric excitation winding needs is little by means of the power that the weak magnetic of armature supply consumes, and helps saves energy.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (1)
1. double-convex pole hybrid excitation motor, it is characterized in that: what corotation axle (6) was housed in casing (4) has the stator number of teeth and the rotor number of teeth identical respectively doubly salient permanent magnet motor and an electric excitation biconvex electrode electric machine, doubly salient permanent magnet motor stator armature winding (5) is connected in series with electric excitation biconvex electrode electric machine stator armature winding (1), and the electric excitation biconvex electrode electric machine stator is provided with excitation winding (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201076680U CN201414057Y (en) | 2009-05-06 | 2009-05-06 | Biconvex pole mixture excitation generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201076680U CN201414057Y (en) | 2009-05-06 | 2009-05-06 | Biconvex pole mixture excitation generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414057Y true CN201414057Y (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201076680U Expired - Fee Related CN201414057Y (en) | 2009-05-06 | 2009-05-06 | Biconvex pole mixture excitation generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201414057Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710773A (en) * | 2009-12-08 | 2010-05-19 | 河南省电力公司南阳供电公司 | Novel alternating current reluctance synchronous motor |
| CN101931292A (en) * | 2010-08-24 | 2010-12-29 | 山东山博电机集团有限公司 | Dual-stator and rotor brushless DC motor |
| CN110518765A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of claw type stator yoke insertion permanent magnet auxiliary birotor axial direction double salient-pole electric machine |
-
2009
- 2009-05-06 CN CN2009201076680U patent/CN201414057Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710773A (en) * | 2009-12-08 | 2010-05-19 | 河南省电力公司南阳供电公司 | Novel alternating current reluctance synchronous motor |
| CN101710773B (en) * | 2009-12-08 | 2016-02-03 | 河南省电力公司南阳供电公司 | Alternating current reluctance synchronous motor |
| CN101931292A (en) * | 2010-08-24 | 2010-12-29 | 山东山博电机集团有限公司 | Dual-stator and rotor brushless DC motor |
| CN110518765A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of claw type stator yoke insertion permanent magnet auxiliary birotor axial direction double salient-pole electric machine |
| CN110518765B (en) * | 2019-08-30 | 2021-08-24 | 沈阳工业大学 | Claw-shaped stator yoke part embedded permanent magnet auxiliary double-rotor axial double-salient-pole motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20140506 |