CN201263113Y - Single iron-core brushless synchronous motor - Google Patents
Single iron-core brushless synchronous motor Download PDFInfo
- Publication number
- CN201263113Y CN201263113Y CNU2008200388623U CN200820038862U CN201263113Y CN 201263113 Y CN201263113 Y CN 201263113Y CN U2008200388623 U CNU2008200388623 U CN U2008200388623U CN 200820038862 U CN200820038862 U CN 200820038862U CN 201263113 Y CN201263113 Y CN 201263113Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- winding
- core
- excitation winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 92
- 230000005284 excitation Effects 0.000 claims abstract description 56
- 230000006698 induction Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 7
- 238000012423 maintenance Methods 0.000 abstract 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Landscapes
- Synchronous Machinery (AREA)
Abstract
The utility model discloses an iron-core brushless synchronous motor, wherein, a motor stator consists of a stator iron core, a stator single-phase AC excitation winding and a stator three-phase power winding; a rotor consists of a rotor iron core, a rotor AC induction winding and a rotor DC excitation winding; both of the stator iron core and the rotor iron core have the single iron core structure; the rotor has the invisible-magnetic-pole structure; the stator iron core is provided with a short-pitch three-phase power winding arrayed in a distributive manner and an integral-pitch single-phase AC excitation winding arrayed in a centralized manner, wherein, the short-pitch three-phase power winding and the single-phase AC excitation winding are arranged in a major stator wire slot and a minor stator wire slot respectively; the three-phase power winding is externally connected with a power source, and the single-phase AC excitation winding is externally connected with an intermediate-frequency power source; the rotor iron core is internally provided with a DC excitation winding arrayed concentrically and an AC induction winding arrayed in a distributive manner, wherein, the DC excitation winding and the AC induction winding are arranged in a major rotor wire slot and a minor rotor wire slot respectively; and an rotary rectifier is fixed on the rotor shaft. The iron-core brushless synchronous motor gets rid of an individual excitation motor which is in coaxial connection in the traditional brushless synchronous motor so that the iron-core brushless synchronous motor has simple structure, reliable operation, easy maintenance, high efficiency and wide practicability.
Description
Technical field
The utility model relates to electric machinery, and especially relating to a kind of stator and rotor all is the brushless synchronous machine of single-core structure.
Background technology
Common brushless synchronous machine system commonly used is made up of synchronous machine, rotating rectifier and AC exciter etc.This synchronous machine links to each other with AC exciter is coaxial, and rotating rectifier is fixed in the rotating shaft, rotates synchronously with the rotor of two motors.Place the DC excitation winding in the AC exciter stator core, place three-phase symmetrical alternating current winding in the rotor core.DC power supply provides exciting current for the exciter stator winding, set up the stationary magnetic field, exciter rotor winding rotation will induced potential, the output three-phase alternating voltage, this voltage converts direct voltage to through rotating rectifier, for the synchronous electric motor rotor excitation winding provides DC excitation voltage, set up the rotor field that synchronous machine needs.Regulate the direct voltage size of exciter stator, size that just can indirect regulation synchronous electric motor rotor DC excitation voltage, they are proportional substantially.
The weak point of this system: 1) need an independent excitation electromotor to link to each other with synchronous machine is coaxial, so the system configuration complexity; 2) shaft system of unit is long, and bearing pedestal is many, and it is higher with watt amplitude that axle is shaken, thereby unfavorable to the safe operation stable and unit of axle system.
The utility model content
The purpose of this utility model is the deficiency that overcomes in the prior art, propose a kind of simple in structure, stable performance, the single-core brushless synchronous motor of security of operation.
For achieving the above object, the technical scheme that the utility model adopted: comprise casing, be located at stator and rotor in the casing, be fixed on the rotating rectifier in the rotating shaft, described stator is made up of stator core, stator single phase alternating current (A.C.) excitation winding and stator three phase power winding; Described rotor is made up of rotor core, rotor alternating current impression winding and rotor DC excitation winding, is latent field structure; Stator core and rotor core are the single-core structure, stator three phase power winding short distance and the little wire casing that in stator core, is provided with arranged evenly and big wire casing upper strata, stator single phase alternating current (A.C.) excitation winding whole apart from and concentrate the big wire casing lower floor that is arranged in the stator core, the external power power-supply of stator three phase power winding, the external intermediate frequency power supply of stator single phase alternating current (A.C.) excitation winding; The whole distance of rotor alternating current impression winding and little wire casing and big wire casing upper strata in rotor core arranged evenly, rotor DC excitation winding concentric type is arranged in the big wire casing lower floor in the rotor core, the output of rotor alternating current impression winding is connected with the input of rectifier, and the output of rectifier is connected with rotor DC excitation winding.
Described stator three phase power winding number of pole-pairs is Pp, and stator single phase alternating current (A.C.) excitation winding number of pole-pairs is Pe, and Pe〉〉 Pp, Pe=2 * k * Pp, (k=1,2,3 ...); The field power supply of described stator single phase alternating current (A.C.) excitation winding is an intermediate frequency power supply.
The utility model with the beneficial effect that existing brushless synchronous machine system compares is: do not have the coaxial independent excitation motor that is connected, single stator core and rotor core structure make electric machine structure simple, and be reliable, is convenient to safeguard that use occasion is extensive.Adopt the intermediate frequency exciting voltage, rotor-exciting voltage and rotating speed are irrelevant, only are directly proportional with stator excitation voltage, therefore make things convenient for excitation regulation and control, and generator and motor all are suitable for.The stator winding number of pole-pairs design of being adopted can be eliminated the coupling between stator two cover windings substantially, makes efficiency of motor more excellent, has practicality widely.
Description of drawings
Fig. 1 is the single-core brushless synchronous motor sectional arrangement drawing;
Fig. 2 is that single-core brushless synchronous motor A-A cuts open sectional view;
Fig. 3 is the field circuit schematic diagram of single-core brushless synchronous motor.
Among the figure: 1-casing; 2-stator core; 3-stator single phase alternating current (A.C.) excitation winding; 4-stator three phase power winding; 5-rotor core; 6-rotor alternating current impression winding; 7-rotor DC excitation winding; 8-rotating shaft; 9-rotating rectifier; The big wire casing of 10-stator; The little wire casing of 11-stator; The big wire casing of 12-rotor; The little wire casing of 13-rotor; 14-intermediate frequency power supply.
Embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Stator of the present utility model is made up of stator core 2, stator single phase alternating current (A.C.) excitation winding 3 and stator three phase power winding 4, stator core 2 and rotor core 5 are the single-core structure, it is whole apart from concentrating the stator single phase alternating current (A.C.) excitation winding 3 of arranging to be provided with a cover short distance stator three phase power winding 4 arranged evenly and a cover in the stator core 2, the number of pole-pairs of stator three phase power winding 4 is Pp, the number of pole-pairs of stator single phase alternating current (A.C.) excitation winding 3 is Pe, and satisfy: Pe〉Pp, Pe=2 * k * Pp, (k=1,2,3......), k are constant; Intermediate frequency power supply 14 provides exciting voltage U for stator single phase alternating current (A.C.) excitation winding 3
SeRotor is latent field structure, it is by rotor core 5, rotor alternating current impression winding 6 and rotor DC excitation winding 7 are formed, be provided with rotor DC excitation winding 7 and whole distance rotor alternating current impression winding 6 arranged evenly that concentric type is arranged in the rotor core 5, the output of rotor alternating current impression winding 6 is connected with the input of rectifier 9, the output of rectifier 9 is connected with rotor DC excitation winding 7, ac induction voltage on the rotor alternating current impression winding 6 is converted into DC excitation voltage U f by the rotating rectifier 9 that is fixed in the rotating shaft, for rotor DC excitation winding 7 provides exciting current.
Get stator single phase alternating current (A.C.) excitation winding number of pole-pairs Pe=4, stator three phase power winding number of pole-pairs Pp=1 satisfies Pe=2 * k * Pp (k=1,2,3......) relation, and the coupling between stator two cover windings can be eliminated substantially.
The thick silicon steel sheet of rotor core 5 usefulness 0.3mm builds up, and for latent field structure, which is provided with big wire casing 12 and little wire casing 13, and little wire casing is arranged in power magnetic pole tip.The rotor bus duct is counted Zr=16, and big wire casing 12 numbers of its rotor are 12, and the little wire casing of rotor several 13 is 4, and the big wire casing 12 of per 6 rotors is provided with two little wire casings 13 of rotor at interval.Rotor DC excitation winding 7 is placed on the lower floor of the big wire casing 12 of rotor according to the concentric type queueing discipline.Rotor alternating current impression winding 6 is placed on the upper strata of little wire casing 13 of rotor and big wire casing 12 according to the whole queueing discipline apart from winding of single-phase distribution.Do not place rotor DC excitation winding 7 in the little wire casing 13 of rotor, distribution rotor DC excitation winding 7 can make the magnetic condensation wave of its generation distribute according to sine wave at rotor core 5 outer surfaces like this.
Its operation principle: stator single phase alternating current (A.C.) excitation winding 3 adds voltage of intermediate frequency 14, flow through electric current of intermediate frequency in the winding, in the motor magnetic circuit, set up an intermediate frequency impulsive magnetic field, this magnetic field and stator single phase alternating current (A.C.) excitation winding 3 and rotor alternating current impression winding 6 be loop chain mutually, therefore in rotor alternating current impression winding 6, understand the sensor transformer electromotive force, its size is directly proportional with stator single phase alternating current (A.C.) excitation winding 3 input voltages, and is almost irrelevant with the rotating speed of rotor.This intermediate frequency impulsive magnetic field can be in stator three phase power winding 4 induced potential.Rotor alternating current impression winding 6 output AC voltages, this voltage converts the DC excitation voltage U to through rotating rectifier 9
f,, set up the rotor stationary magnetic field that synchronous machine needs for rotor DC excitation winding 6 provides exciting current.Regulate the voltage of intermediate frequency size of stator single phase alternating current (A.C.) excitation winding 3, just can regulate the size of synchronous electric motor rotor DC excitation voltage pro rata, thereby the brushless excitation that has realized synchronous machine is regulated.
Claims (3)
1, a kind of single-core brushless synchronous motor, comprise casing (1), be located at stator and rotor in the casing (1), be fixed on the rotating rectifier (9) in the rotating shaft (8), it is characterized in that: described stator is made up of stator core (2), stator single phase alternating current (A.C.) excitation winding (3) and stator three phase power winding (4); Described rotor is made up of rotor core (5), rotor alternating current impression winding (6) and rotor DC excitation winding (7), and rotor is latent field structure; Stator core (2) and rotor core (5) are the single-core structure, stator three phase power winding (4) short distance and little wire casing (11) and big wire casing (10) upper strata in stator core (2) arranged evenly, whole distance of stator single phase alternating current (A.C.) excitation winding (3) and concentrated big wire casing (10) lower floor that is arranged in the stator core (2), the external power power-supply of stator three phase power winding (4), the external intermediate frequency power supply of stator single phase alternating current (A.C.) excitation winding (3); The whole distance of rotor alternating current impression winding (6) and little wire casing (13) and big wire casing (12) upper strata in rotor core (5) arranged evenly, rotor DC excitation winding (7) concentric type is arranged in big wire casing (12) lower floor in the rotor core (5), the output of rotor alternating current impression winding (6) is connected with the input of rectifier (9), and the output of rectifier (9) is connected with rotor DC excitation winding (7).
2, single-core brushless synchronous motor according to claim 1, it is characterized in that: described stator three phase power winding (4) number of pole-pairs is Pp, and stator single phase alternating current (A.C.) excitation winding (3) number of pole-pairs is Pe, and Pe〉〉 Pp, Pe=2 * k * Pp, (k=1,2,3 ...).
3, single-core brushless synchronous motor according to claim 1 is characterized in that: the field power supply of described stator single phase alternating current (A.C.) excitation winding (3) is an intermediate frequency power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200388623U CN201263113Y (en) | 2008-08-04 | 2008-08-04 | Single iron-core brushless synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200388623U CN201263113Y (en) | 2008-08-04 | 2008-08-04 | Single iron-core brushless synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201263113Y true CN201263113Y (en) | 2009-06-24 |
Family
ID=40809588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200388623U Expired - Lifetime CN201263113Y (en) | 2008-08-04 | 2008-08-04 | Single iron-core brushless synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201263113Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645637B (en) * | 2008-08-04 | 2011-03-09 | 中国矿业大学 | Single-core brushless synchronous motor |
| CN103001453A (en) * | 2012-12-13 | 2013-03-27 | 中国矿业大学 | Frequency conversion transformer |
| CN103730997A (en) * | 2014-01-06 | 2014-04-16 | 南京航空航天大学 | Excitation integrated type brushless synchronous motor |
| CN106602756A (en) * | 2016-10-13 | 2017-04-26 | 国网冀北电力有限公司技能培训中心 | Three-phase core-type axial rotary converter for wireless energy transmission |
| WO2019134784A1 (en) * | 2018-01-04 | 2019-07-11 | Abb Schweiz Ag | Exciterless synchronous machine with damper bars |
-
2008
- 2008-08-04 CN CNU2008200388623U patent/CN201263113Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645637B (en) * | 2008-08-04 | 2011-03-09 | 中国矿业大学 | Single-core brushless synchronous motor |
| CN103001453A (en) * | 2012-12-13 | 2013-03-27 | 中国矿业大学 | Frequency conversion transformer |
| CN103730997A (en) * | 2014-01-06 | 2014-04-16 | 南京航空航天大学 | Excitation integrated type brushless synchronous motor |
| CN103730997B (en) * | 2014-01-06 | 2016-03-30 | 南京航空航天大学 | A kind of excitation integrated form brushless synchronous machine |
| CN106602756A (en) * | 2016-10-13 | 2017-04-26 | 国网冀北电力有限公司技能培训中心 | Three-phase core-type axial rotary converter for wireless energy transmission |
| CN106602756B (en) * | 2016-10-13 | 2023-08-18 | 国网冀北电力有限公司技能培训中心 | Axial rotation converter for three-phase iron core type wireless energy transmission |
| WO2019134784A1 (en) * | 2018-01-04 | 2019-07-11 | Abb Schweiz Ag | Exciterless synchronous machine with damper bars |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101645637B (en) | Single-core brushless synchronous motor | |
| CN101651394B (en) | Mixed excitation magnetoelectric machine adopting harmonic excitation | |
| CN102185448B (en) | Hybrid excitation permanent magnet motor for wireless transmission and tooth harmonic excitation | |
| CN103199662B (en) | The composite excitation permanent magnet synchronous motor of third harmonic excitation | |
| CN103683775A (en) | Third-harmonic excitation synchronous motor | |
| CN104682648B (en) | The hybrid excitation permanent magnet motor of biharmonic excitation | |
| CN201263113Y (en) | Single iron-core brushless synchronous motor | |
| CN101969257B (en) | Hybrid excitation permanent magnet motor with tooth harmonic excitation | |
| CN104682621B (en) | Axial magnetic field slip synchronization-type double-direct wind power generator | |
| CN102545501A (en) | Axial dual-stator brushless double-fed motor | |
| CN102005875A (en) | Brushless parallel-structure hybrid excitation synchronous generator without additional air gap | |
| CN110957822B (en) | Birotor magnetic flux switches aerogenerator and power generation system | |
| CN206149117U (en) | Harmonic self -excitation constant voltage mixed excitation permanent -magnet machine | |
| CN102710083B (en) | Hybrid-excited brushless DC wind power generator | |
| CN101714846B (en) | Brushless synchronous dynamo | |
| CN100405709C (en) | Coarmature type AC-DC brushless electric generator | |
| CN103904856B (en) | A kind of brushless Harmonic Wave Excited Generator with initial self-excitation ability | |
| CN206432872U (en) | A kind of brushless hybrid excitation magneto based on harmonic exitation | |
| CN101976923B (en) | Hybrid excitation permanent magnet motor with secondary harmonic excitation | |
| CN204538925U (en) | The hybrid excitation permanent magnet motor of biharmonic excitation | |
| CN201323514Y (en) | A brushless single fed double-mechanical-port motor | |
| CN204597718U (en) | The two straight wind-driven generator of axial magnetic field slippage synchronous mode | |
| CN201550071U (en) | Brushless synchronous motor | |
| CN201956856U (en) | Mixed excitation permanent-magnet motor with quintuple harmonic excitation | |
| CN201742269U (en) | Brushless excitation multiphase water-cooling synchronous wind driven generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090624 Effective date of abandoning: 20080804 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090624 Effective date of abandoning: 20080804 |