CN205693539U - A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation - Google Patents
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation Download PDFInfo
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- CN205693539U CN205693539U CN201620668936.6U CN201620668936U CN205693539U CN 205693539 U CN205693539 U CN 205693539U CN 201620668936 U CN201620668936 U CN 201620668936U CN 205693539 U CN205693539 U CN 205693539U
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Abstract
The utility model discloses a kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is added in the sense of current on stator excitation winding and size cyclomorphosis, its induced excitation magnetic field set up is made to rotate with rotor magnetic pole and change direction, thus on rotor windings, produce faradic current can keep same direction all the time, make rotor sensing winding generation and permanent magnet in the same direction or reverse magnetic potential, this magnetic potential and permanent magnet magnetic potential are parallel relationship in air gap, two-ways regulation air-gap field is carried out, to realize parallel mixed excitation magnetic by regulating this excitation magnetic potential.The permanent magnet that this utility model is produced in sensing magnetic potential, with rotor by times pole principle of induction in rotor windings produces air-gap field jointly, it is achieved the regulation of motor-field.By induced excitation effect, eliminating electric brush slip ring system, the use of stator excitation actuator makes rotor inductive currents be controlled full-wave electric current.
Description
Technical field
This utility model relates to a kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation.
Background technology
Improving constantly the decline with cost along with permanent magnetic material performance, permagnetic synchronous motor, with its simple in construction, runs
Reliably, particularly there is the incomparable high efficiency of other motors and increasingly paid close attention to by people.But due to permanent magnet
The character of itself, when load causes armature supply change or rotating speed to change, magneto cannot be encouraged as common electricity
Excitation magnetic kinetic potential is adjusted by magnetic generator like that by regulation exciting current, the normal work of impact load.
How to realize the effectively regulation of air-gap field and control focus and the difficult point of always magneto research.Rationally change
Become permanent magnet motor structure, introduce auxiliary electrical magnetic part winding, it is achieved " composite excitation " thought of air-gap field flexible, obtain state
The accreditation of inside and outside motor industry scholar and concern, be also the major way solving magneto adjustment of field excitation difficulty problem at present.
Utility model content
This utility model is in order to solve the problems referred to above, it is proposed that a kind of composite excitation three-phase brushless based on all-wave sensing is same
Step electromotor, this utility model produces the permanent magnet in sensing magnetic potential, with rotor by times pole principle of induction in rotor windings
Jointly produce air-gap field, it is achieved the regulation of motor-field.By induced excitation effect, eliminate electric brush slip ring system, fixed
The use of sub-field regulator makes rotor inductive currents be controlled full-wave electric current so that electromotor not only has magnetic field flexibly
Two-ways regulation ability, moreover it is possible to be greatly increased excitation inductance, reduces excitation loss, simultaneously as brushless-slip ring structure and
Motor is made to maintain simple in construction, the feature that reliability is high.
To achieve these goals, this utility model adopts the following technical scheme that
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, controls to be added in stator excitation winding
On the sense of current and size cyclomorphosis so that it is the induced excitation magnetic field of foundation with rotor magnetic pole rotate and change direction, from
And on rotor windings, produce faradic current can keep same direction all the time, make rotor sensing winding produce same with permanent magnet
To or reverse magnetic potential, this magnetic potential and permanent magnet magnetic potential be parallel relationship in air gap, by regulating the two-way tune of this excitation magnetic potential
Air gap, to realize parallel mixed excitation magnetic.
The stator of described synchronous generator system is installed with rotor coaxial.
Three-phase separate cloth armature winding and single-phase Exciting Windings for Transverse Differential Protection, described single-phase Exciting Windings for Transverse Differential Protection is embedded on the iron core of described stator
With DC excitation detection control circuit composition field regulator.
The iron core of described rotor is embedded with rotor sensing winding and tangential magnetized permanent magnet.
The iron core upper punch of described rotor presses off mouthful elongated slot and opening vat, places permanent magnet, permanent magnet in elongated slot
For cutting orientation magnetizing, opening vat is placed rotor sensing winding.
Described rotor sensing winding is concentratred winding, voluntarily short circuit, and the order of connection to ensure to form quadripolar magnetic field, and at gas
The magnetic potential direction formed in gap is identical with the excitation direction of permanent magnet.
Described rotor sensing winding is all identical with armature winding number of poles with permanent magnet number of poles.
The number of poles of described single-phase Exciting Windings for Transverse Differential Protection is the half of armature winding number of poles.
The electric current of described rotor sensing winding exists and in same direction all the time at whole rotation period, is all-wave sensing.
Magnetic potential and the permanent magnet magnetic potential of described rotor sensing winding is in the same direction or reversely, it is possible to achieve air-gap field two-way
Regulation.
Operation principle of the present utility model is: by pole principle of induction again produce in rotor windings sensing magnetic potential, with turn
Permanent magnet in son produces air-gap field jointly, it is achieved the regulation of motor-field.Particularly as being: rotor sensing winding is by times pole
Induction effect produces electric current, and is detected by motor position and control circuit, makes the electric current side being added on stator excitation winding
To with size cyclomorphosis so that it is the induced excitation magnetic field of foundation with rotor magnetic pole rotate and change direction, thus rotor around
The faradic current produced in group can keep same direction all the time, makes rotor sensing winding produce with permanent magnet in the same direction or reversely
Magnetic potential, this magnetic potential and permanent magnet magnetic potential are parallel relationship in air gap, can carry out two-ways regulation gas by regulating this excitation magnetic potential
Gap magnetic field, it is achieved that parallel mixed excitation magnetic.
The beneficial effects of the utility model are:
(1) concentrate magneto alternator and the advantage of induced excitation electromotor, increase field regulator in the stator,
In rotor sensing winding, controlled full-wave electric current is obtained, it is not necessary in rotor-side, brush-slip ring is installed by pole principle of induction again
System, simple in construction, highly reliable, excitation efficiency is high；
(2) this motor produces the permanent magnet in sensing magnetic potential, with rotor altogether by times pole principle of induction in rotor windings
With producing air-gap field, it is achieved the two-ways regulation of motor-field；
(3) this utility model passes through induced excitation effect, eliminates electric brush slip ring system, making of stator excitation actuator
With making rotor inductive currents be controlled full-wave electric current, improve induced excitation coefficient and excitation efficiency so that this motor was both protected
Stay high power density and the simple in construction of magneto, compact feature, and there is adjustable magnetic ability flexibly, significantly expanded
The application of magneto.
Accompanying drawing explanation
Fig. 1 is the two-dimensional structure schematic diagram of this utility model hybrid excitation brushless generator based on all-wave induced excitation；
Fig. 2 is the annexation schematic diagram between this utility model motor winding；
Wherein, 1 stator core, 2 stator upper strata grooves, 3 permanent magnets (dash area), 4 stator lower floor grooves, 5
Rotating shaft, 6 rotor cores, 7 rotor openings vats, Wa: stator threephase armature winding；We1, We2: stator excitation winding coil；
Wf: rotor sensing winding.
Detailed description of the invention:
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of composite excitation three-phase brushless generator based on all-wave induced excitation, including casing, in it
It is co-axially mounted stator and rotor.Described stator core is essentially identical with common magneto alternator, and stator core embeds three
Mutually distributed armature winding and single-phase Exciting Windings for Transverse Differential Protection, Exciting Windings for Transverse Differential Protection and DC excitation detection control circuit composition field regulator.
Rotor sensing winding and tangential magnetized permanent magnet are all embedded in rotor core, and wherein, permanent magnet embeds and closes at rotor core
In mouth elongated slot.Rotor sensing winding is concentratred winding, embedding is wound in rotor core opening vat, short circuit voluntarily, this sensing around
Organizing all identical with armature winding number of poles with permanent magnet number of poles, the number of poles of Exciting Windings for Transverse Differential Protection is the half of armature winding number of poles.
Specifically include coaxial mounted stator and rotor, between stator and rotor, form air gap.
Wherein stator core is essentially identical with common magneto alternator, embeds three-phase separate cloth in the groove of stator upper strata
Armature winding, places single-phase Exciting Windings for Transverse Differential Protection in stator lower floor groove, and the number of poles of Exciting Windings for Transverse Differential Protection is the half (figure of armature winding number of poles
Middle armature winding is quadrupole).
Wherein rotor core upper punch presses off mouthful elongated slot and opening vat, places permanent magnet in elongated slot, and permanent magnet is
Cutting orientation magnetizing.Placing rotor sensing winding in opening vat, the number of poles of sensing winding is equal with armature winding number of poles.
As in figure 2 it is shown, rotor four sensing winding short circuit voluntarily, the order of connection to ensure to form quadripolar magnetic field, and at gas
The magnetic potential direction formed in gap is identical with the excitation direction of permanent magnet.Stator exciting coil connects DC excitation testing circuit.
Wherein, stator core and rotor core are formed by punching silicon-steel.
When only permanent magnet excitation in rotor, air-gap field is produced by permanent magnet completely, and this motor can be regarded as commonly
Three-phase permanent synchronous generator.
When stator excitation winding flows through a certain amount of electric current, situation changes.Rotor sensing winding is felt by times pole
Generation electric current should be acted on, and detected by motor position and control circuit, make the sense of current being added on stator excitation winding
With size cyclomorphosis so that it is the induced excitation magnetic field of foundation rotates with rotor magnetic pole and changes direction, thus at rotor windings
Upper generation faradic current can keep same direction all the time, thus rotor sensing winding produces and permanent magnet in the same direction or reversely magnetic
Gesture, this magnetic potential and permanent magnet magnetic potential are parallel relationship in air gap, can carry out two-ways regulation air gap by regulating this excitation magnetic potential
Magnetic field, it is achieved that parallel mixed excitation magnetic.
Having double winding on stator, a set of is threephase armature winding, and another set of is single-phase Exciting Windings for Transverse Differential Protection, and this double winding
Number of poles ratio be 2: 1.
The single-phase Exciting Windings for Transverse Differential Protection of stator connects DC excitation testing circuit, can be automatically adjusted according to rotor-position and output voltage and encourage
The current cycle of magnetic winding and amplitude.
Embed tangential magnetized permanent magnet and rotor sensing winding on rotor core simultaneously, and the two number of poles is equal, all etc.
In stator threephase armature winding number of poles, and the magnetic circuit relation that permanent magnet senses winding with rotor is " in parallel ".
This utility model does not has brush-slip ring structure, and motor reliability is high.
The electric current of rotor sensing winding exists and in same direction all the time at whole rotation period, is all-wave sensing.
Although detailed description of the invention of the present utility model is described by the above-mentioned accompanying drawing that combines, but not new to this practicality
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not to pay various amendments or deformation that creative work can make still at protection model of the present utility model
Within enclosing.
Claims (10)
1. a composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, is characterized in that: control to be added in stator
The sense of current in Exciting Windings for Transverse Differential Protection and size cyclomorphosis so that it is the induced excitation magnetic field of foundation rotates with rotor magnetic pole and changes
Direction, thus on rotor windings, produce faradic current can keep same direction all the time, make rotor sensing winding produce with forever
Magnet in the same direction or reversely magnetic potential, this magnetic potential and permanent magnet magnetic potential be parallel relationship in air gap, by regulating this excitation magnetic potential
Two-ways regulation air-gap field, to realize parallel mixed excitation magnetic.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: the stator of described synchronous generator is installed with rotor coaxial.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: on the iron core of described stator, embed three-phase separate cloth armature winding and single-phase Exciting Windings for Transverse Differential Protection, described single-phase Exciting Windings for Transverse Differential Protection with
DC excitation detection control circuit composition field regulator.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: the iron core of described rotor is embedded with rotor sensing winding and tangential magnetized permanent magnet.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levying and be: the iron core upper punch of described rotor presses off mouthful elongated slot and opening vat, place permanent magnet in elongated slot, permanent magnet is for cutting
To magnetizing, open slot is placed rotor sensing winding.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: described rotor sensing winding is concentratred winding, voluntarily short circuit, and the order of connection to ensure to form quadripolar magnetic field, and at air gap
The magnetic potential direction of middle formation is identical with the excitation direction of permanent magnet.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: described rotor sensing winding is all identical with armature winding number of poles with permanent magnet number of poles.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: the number of poles of described single-phase Exciting Windings for Transverse Differential Protection is the half of armature winding number of poles.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: the electric current of described rotor sensing winding exists and in same direction all the time at whole rotation period, be all-wave sensing.
A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation, it is special
Levy and be: magnetic potential and the permanent magnet magnetic potential of described rotor sensing winding is in the same direction or reversely, it is achieved the two-ways regulation of air-gap field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620668936.6U CN205693539U (en) | 2016-06-29 | 2016-06-29 | A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620668936.6U CN205693539U (en) | 2016-06-29 | 2016-06-29 | A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation |
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| Publication Number | Publication Date |
|---|---|
| CN205693539U true CN205693539U (en) | 2016-11-16 |
Family
ID=57426049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620668936.6U Withdrawn - After Issue CN205693539U (en) | 2016-06-29 | 2016-06-29 | A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896833A (en) * | 2016-06-29 | 2016-08-24 | 山东大学 | Hybrid excitation three-phase brushless synchronous generator based on full wave induction excitation |
| CN108696013A (en) * | 2017-04-07 | 2018-10-23 | 章宪 | AC magnetoelectric machine |
| CN109149893A (en) * | 2018-09-12 | 2019-01-04 | 南京航空航天大学 | Double induction type brushless exciting motors |
| CN113346656A (en) * | 2021-05-19 | 2021-09-03 | 南京航空航天大学 | Stator double-winding permanent magnet motor with alternating current magnetic regulation |
-
2016
- 2016-06-29 CN CN201620668936.6U patent/CN205693539U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896833A (en) * | 2016-06-29 | 2016-08-24 | 山东大学 | Hybrid excitation three-phase brushless synchronous generator based on full wave induction excitation |
| CN105896833B (en) * | 2016-06-29 | 2018-02-27 | 山东大学 | A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation |
| CN108696013A (en) * | 2017-04-07 | 2018-10-23 | 章宪 | AC magnetoelectric machine |
| CN109149893A (en) * | 2018-09-12 | 2019-01-04 | 南京航空航天大学 | Double induction type brushless exciting motors |
| CN109149893B (en) * | 2018-09-12 | 2020-05-22 | 南京航空航天大学 | Double-induction brushless excitation motor |
| CN113346656A (en) * | 2021-05-19 | 2021-09-03 | 南京航空航天大学 | Stator double-winding permanent magnet motor with alternating current magnetic regulation |
| CN113346656B (en) * | 2021-05-19 | 2023-02-03 | 南京航空航天大学 | Stator duplex winding permanent-magnet machine that exchanges accent magnetism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161116 Effective date of abandoning: 20180227 |