CN116191806A - Permanent magnet auxiliary excitation driving power taking salient pole synchronous generator - Google Patents
Permanent magnet auxiliary excitation driving power taking salient pole synchronous generator Download PDFInfo
- Publication number
- CN116191806A CN116191806A CN202310139926.8A CN202310139926A CN116191806A CN 116191806 A CN116191806 A CN 116191806A CN 202310139926 A CN202310139926 A CN 202310139926A CN 116191806 A CN116191806 A CN 116191806A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- auxiliary excitation
- salient pole
- driving power
- magnet auxiliary
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/26—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets
- H02K21/28—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/223—Rotor cores with windings and permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
Abstract
The invention discloses a permanent magnet auxiliary excitation driving power taking salient pole synchronous generator which comprises an electronic voltage stabilizing controller, a front end cover, a rear end cover, a stator, a permanent magnet auxiliary excitation rotor and a rectifier, wherein the front end cover is fixedly connected with the rear end cover through bolts, and the electronic voltage stabilizing controller, the stator, the permanent magnet auxiliary excitation rotor and the rectifier are arranged in a region formed by the front end cover and the rear end cover. The invention relates to the field of automobile motor appliances, in particular to a permanent magnet auxiliary excitation driving power taking salient pole synchronous generator. The invention aims to solve the technical problem of providing a permanent magnet auxiliary excitation driving power taking salient pole synchronous generator which is beneficial to improving the power density of the generator.
Description
Technical Field
The invention relates to the field of automobile motor appliances, in particular to a permanent magnet auxiliary excitation driving power taking salient pole synchronous generator.
Background
The Chinese automobile industry has been developed into the pillar industry of national economy, and plays an indispensable role in various aspects of industrial and agricultural production, transportation and people's production and life. With the continuous improvement of the requirements on the automation level and the comfort of the automobile and the improvement of the national automobile exhaust emission standard, the requirements on the rated power, the efficiency level and the power density of the automobile generator are higher. For special vehicles, such as military vehicles, fire-fighting vehicles, rescue vehicles, cold chain transportation vehicles, etc., the requirements for high power, high efficiency and high power density generators are particularly stringent.
Disclosure of Invention
The invention aims to provide a permanent magnet auxiliary excitation driving power taking salient pole synchronous generator which is beneficial to improving the power density of the generator.
In order to achieve the above purpose, the present invention provides the following technical solutions: a permanent magnet auxiliary excitation driving power taking salient pole synchronous generator is characterized by comprising: the electronic voltage stabilizing controller, the front end cover, the rear end cover, the stator, the permanent magnet auxiliary excitation rotor and the rectifier are fixedly connected through bolts, and the electronic voltage stabilizing controller, the stator, the permanent magnet auxiliary excitation rotor and the rectifier are arranged in a region formed by the front end cover and the rear end cover.
As a further limitation of the technical scheme, the stator comprises a stator core and an armature winding, wherein the inner circle of the stator core is uniformly grooved, and the armature winding is arranged in the groove.
As a further limitation of the present technical solution, the armature winding is a three-phase symmetrical winding.
As a further limitation of the technical scheme, the permanent magnet auxiliary excitation rotor comprises a salient pole iron core, an excitation winding and a permanent magnet.
As a further limitation of the technical scheme, the exciting windings are wound on the pole body, the number of the exciting windings is the same as that of the generator, and the polarities are N, S alternately.
As a further limitation of the technical scheme, the permanent magnets are arranged between the adjacent pole shoes and are fixed and positioned by bosses on the pole shoes, and the number of the permanent magnets is the same as the number of poles.
As a further limitation of the technical scheme, the permanent magnet is tangentially magnetized, and the polarity of the permanent magnet is as follows: in the rotor pole body, the direction of the electric excitation magnetic field is opposite.
Compared with the prior art, the invention has the following beneficial effects:
1. the composite magnetic density of the rotor pole body is reduced, the material utilization rate is improved, the air gap composite magnetic density is enhanced, the induced electromotive force in the armature winding is increased, and the power density of the generator is improved.
2. When the electric excitation current is zero, the magnetic field generated by the permanent magnet in the air gap is almost zero, so that the problem that the permanent magnet field cannot be eliminated when the common permanent magnet generator fails does not exist.
3. The air gap field of the generator is established by the permanent magnet and the electric excitation together, the magnetic field intensity can be conveniently adjusted by adjusting the excitation current, the output voltage is stable, and the power density is improved by about 25% compared with the original generator.
Drawings
Fig. 1 is a schematic structural view of an embodiment.
Fig. 2 is a cross-sectional view of the rotor of the embodiment shown in fig. 1.
Fig. 3 is three cross-sectional shapes of permanent magnets.
In the figure: 1. the electronic voltage stabilizing controller comprises 2, a front end cover, 3, a rear end cover, 4, a stator, 5, a stator core, 6, an armature winding, 7, a permanent magnet auxiliary excitation rotor, 8, a salient pole core, 9, an excitation winding, 10, a pole shoe, 11, a pole body, 12, a permanent magnet, 13 and a rectifier.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention comprises the following steps: the electronic voltage stabilizing controller 1, the front end cover 2, the rear end cover 3, the stator 4, the permanent magnet auxiliary excitation rotor 7 and the rectifier 13 are fixedly connected through bolts, and the electronic voltage stabilizing controller 1, the stator 4, the permanent magnet auxiliary excitation rotor 7 and the rectifier 13 are arranged in a region formed by the front end cover 2 and the rear end cover 3.
The stator 4 comprises a stator core 5 and an armature winding 6, wherein the inner circle of the stator core 5 is uniformly grooved, and the armature winding 6 is arranged in the groove.
The armature winding 6 is a three-phase symmetrical winding.
The permanent magnet auxiliary excitation rotor 7 comprises a salient pole iron core 8, an excitation winding 9 and a permanent magnet 12.
The exciting windings 9 are wound on the pole body 11, the number of the exciting windings 9 is the same as that of the generator poles, and the polarities are N, S alternately.
The permanent magnets 12 are installed between the adjacent pole shoes 10, and are fixed and positioned by bosses on the pole shoes, the number of which is the same as the number of poles.
The permanent magnet 12 is tangentially magnetized, and has the polarity: in the rotor pole body, the direction of the electric excitation magnetic field is opposite.
The permanent magnet 12 may have a rectangular, trapezoidal or shaped cross-section.
The electronic voltage-stabilizing controller 1 detects the output voltage and current of the generator, automatically adjusts exciting current and keeps the output voltage of the generator stable.
The rectifier 13 adopts a low-conduction voltage drop diode, so that rectifying loss is reduced.
The workflow of this embodiment is:
the permanent magnet auxiliary exciting rotor 7 is connected with an engine through a transmission device, the engine is started to drive the permanent magnet auxiliary exciting rotor 7 to rotate, an air gap magnetic field is established by the permanent magnet 12 and exciting current, the armature winding 6 is cut by the rotation of the magnetic field to generate three-phase symmetrical electromotive force, and the three-phase symmetrical electromotive force is converted into direct current electric energy through the rectifier 13 to be used by vehicle-mounted electrical equipment. When the rotating speed or the load changes, the electronic voltage-stabilizing controller 1 automatically adjusts exciting current to keep the output voltage stable.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A permanent magnet auxiliary excitation driving power take-off salient pole synchronous generator, characterized by comprising:
the electronic voltage stabilizing controller (1), a front end cover (2), a rear end cover (3), a stator (4), a permanent magnet auxiliary excitation rotor (7) and a rectifier (13);
the front end cover (2) is fixedly connected with the rear end cover (3) through bolts;
the electronic voltage stabilizing controller (1), the stator (4), the permanent magnet auxiliary excitation rotor (7) and the rectifier (13) are arranged in a region formed by the front end cover (2) and the rear end cover (3).
2. The permanent magnet auxiliary excitation driving power take-off salient pole synchronous generator as claimed in claim 1, wherein: the stator (4) comprises a stator core (5) and an armature winding (6), wherein the inner circle of the stator core (5) is uniformly grooved, and the armature winding (6) is arranged in the groove.
3. The permanent magnet auxiliary excitation driving power take-off salient pole synchronous generator as claimed in claim 2, wherein: the armature winding (6) is a three-phase symmetrical winding.
4. The permanent magnet auxiliary excitation driving power take-off salient pole synchronous generator as claimed in claim 1, wherein: the permanent magnet auxiliary excitation rotor (7) comprises a salient pole iron core (8), an excitation winding (9) and a permanent magnet (12).
5. The permanent magnet auxiliary excitation driving power take-off salient pole synchronous generator as claimed in claim 4, wherein: the exciting windings (9) are wound on the pole bodies (11), the number of the exciting windings (9) is the same as that of the generator poles, and the polarities are N, S alternately.
6. The permanent magnet auxiliary excitation driving power take-off salient pole synchronous generator as claimed in claim 4, wherein: the permanent magnets (12) are arranged between the adjacent pole shoes (10), and are fixed and positioned by bosses on the pole shoes (10), and the number of the permanent magnets is the same as the number of poles.
7. The permanent magnet auxiliary excitation driving power take-off salient pole synchronous generator as claimed in claim 4, wherein: the permanent magnet (12) is tangentially magnetized, and the polarity of the permanent magnet is as follows: in the rotor pole body (11), the direction of the electric excitation magnetic field is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310139926.8A CN116191806A (en) | 2023-02-16 | 2023-02-16 | Permanent magnet auxiliary excitation driving power taking salient pole synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310139926.8A CN116191806A (en) | 2023-02-16 | 2023-02-16 | Permanent magnet auxiliary excitation driving power taking salient pole synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116191806A true CN116191806A (en) | 2023-05-30 |
Family
ID=86432322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310139926.8A Pending CN116191806A (en) | 2023-02-16 | 2023-02-16 | Permanent magnet auxiliary excitation driving power taking salient pole synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116191806A (en) |
-
2023
- 2023-02-16 CN CN202310139926.8A patent/CN116191806A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106685167B (en) | Double H-shaped stator core birotor composite excitation type axial magnetic flux switch permanent magnet motors | |
| CN104242580B (en) | A kind of automobile is with variable winding starting electromotor | |
| CN101667763A (en) | Lightweight automobile mixed excitation generator with vacuum pump | |
| CN101436793A (en) | High power wide velocity modulation built-in permanent magnet brushless wheel motor for electric automobile | |
| CN111082548A (en) | Stator modular hybrid excitation alternating pole magnetic flux reverse motor | |
| CN111786527B (en) | Excitation compensation type hybrid magnetic source magnetic field modulation motor | |
| CN110611384A (en) | Magnetic circuit decomposition type vernier permanent magnet motor | |
| CN112467951A (en) | Double-stator alternate-pole brushless hybrid excitation motor | |
| CN1545188A (en) | Mixed excitation synchronous motor | |
| CN113078792B (en) | Axial magnetic field alternating pole brushless hybrid excitation motor | |
| CN112803628A (en) | Split-tooth type alternate-pole hybrid excitation brushless motor based on alternating-current excitation | |
| CN219181384U (en) | Permanent magnet auxiliary excitation driving power taking salient pole synchronous generator | |
| CN116191806A (en) | Permanent magnet auxiliary excitation driving power taking salient pole synchronous generator | |
| CN102480199A (en) | Hybrid excitation brushless single phase synchronous generator with novel structure | |
| CN210744845U (en) | Range extending system and electric automobile | |
| CN106787564A (en) | A kind of brushless hybrid excitation magneto based on harmonic exitation | |
| CN208445460U (en) | A kind of spoke type for electric vehicle interlocks rotor permanent magnet synchronous motor | |
| CN207559705U (en) | A kind of mixed excitation claw-pole rotor and generator | |
| JP2002095175A (en) | Alternating current generator for vehicle | |
| CN213341773U (en) | Generator, power generation system and automobile | |
| CN2229726Y (en) | High-power DC magnetoelectric generator for automotive vehicle and ship | |
| CN218783741U (en) | Asymmetric magnetic pole hybrid excitation driving motor | |
| Pinky et al. | Torque improvement in IPMSM for Electric vehicle application | |
| CN211405822U (en) | Permanent magnet motor | |
| CN103568865A (en) | Power system of extended-range electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |