CN2655505Y - Composite excitation rare-earth permanent magnetic synchronous generator - Google Patents
Composite excitation rare-earth permanent magnetic synchronous generator Download PDFInfo
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- CN2655505Y CN2655505Y CN 200320113995 CN200320113995U CN2655505Y CN 2655505 Y CN2655505 Y CN 2655505Y CN 200320113995 CN200320113995 CN 200320113995 CN 200320113995 U CN200320113995 U CN 200320113995U CN 2655505 Y CN2655505 Y CN 2655505Y
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- permanent magnet
- earth permanent
- rare earth
- rotator
- rotor
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Abstract
A composite drive rare earth permanent magnet synchronization generator comprises a rotary shaft, an end cover, a device shell and an armature winding, characterized in that the rotary shaft is equipped with a main drive used rare earth permanent magnet rotator and a pressure adjusting used aiding electric drive rotator, wherein the rare earth permanent magnet rotator and the aiding electric drive rotator use an armature winding commonly, the generated magnets are combined in the magnet rout. The utility model solves the difficulty of the rare earth permanent magnet synchronization generator voltage adjusting, the aiding electric drive rotator adopts a claw pole structure to realize the motor brushless drive and the motor high efficiency operation, and the reliability is increased, meanwhile a aiding electric drive coil and a voltage adjusting circuit are connected, the change of the drive current pole property can be used to change the aiding electric drive magnet field pole property, thereby adjusting the output voltage (increasing or decreasing). The utility model main drive permanent magnet rotator and the aiding electric drive rotator use the rotary shaft and the armature commonly, which are equipped axially, has simple and compact structure and reasonable manufacturing craft, thereby not only increasing the stability of the permanent magnet electric generating voltage, but also controlling the motor volume and weight.
Description
Technical field:
The utility model belongs to generator, is specifically related to the architecture advances of rare earth permanent magnet synchronous generator.
Background technology:
Motor be with the electromagnetic field for matchmaker's valency carries out the calutron that mechanical energy and electric energy are changed mutually, carry out the necessary air-gap field of energy converting between mechanical in order in motor, to set up, two kinds of methods can be arranged.A kind of be in motor windings by producing magnetic field with electric current, for example common direct current machine and synchronous machine.The motor of this electric excitation had both needed special winding and corresponding device thereof, and needing constantly again, energize flows to keep electric current; Another kind is to produce magnetic field by permanent magnet because the inherent characteristic of permanent magnetic material, it through magnetization (magnetizing) in advance after, do not need external energy just can set up magnetic field at its surrounding space, this both can simplify electric machine structure, but conserve energy again.Along with coming out one after another of Al-Ni-Co permanent magnet, ferrite permanent-magnet, particularly rare earth permanent magnet, the magnetic property of permanent magnet is greatly improved, and many electro-magnetic motors are used the rare-earth permanent magnet excitation again one after another instead.For the Rare-Earth Magnetic synchronous generator, it simple in structure, reliable, volume is little, light weight, loss is little, efficient is high.But the excitation field of rare-earth permanent magnet can't be regulated, therefore, when the load of generator or rotation speed change, it is the comparison difficulty that this class generator keeps constant voltage, make its application be very restricted, particularly be difficult to apply in the field that power supply quality is had relatively high expectations.
Summary of the invention:
Technical problem to be solved in the utility model is to overcome the prior art deficiency, provide a kind of output voltage and sustaining voltage of regulating stable, realize motor brushless excitation and run up, reliability and stability are good, can be used for the Hybrid Excitation Rare Earth Permanent Magnet synchronous generator in the demanding field of power supply quality.
Solve above-mentioned technology institute by the following technical solutions: the utility model comprises the synchronous generator of a kind of Hybrid Excitation Rare Earth Permanent Magnet, comprise rotating shaft, end cap, casing, armature winding, it is characterized in that being equipped with in the rotating shaft main excitation rare-earth permanent magnet rotor and pressure regulation auxiliary electrical magnetic part rotor, described rare-earth permanent magnet rotor and the shared armature winding of auxiliary electrical magnetic part rotor, the magnetic potential of generation is in magnetic circuit and be unified into.
As further improvement of the utility model, adopt rare-earth permanent magnet rotor and auxiliary electrical magnetic part rotor coaxial to linking to each other.The auxiliary electrical magnetic part rotor is the Lundell structure, and it is equated and be half fore paw, rear solid end of number of poles by the pawl number, and the electric magnet exciting coil that is clipped in the middle of two pawls forms, and connects by non-magnet material between two pawls, and pawl staggers mutually, along circular evenly distribution.The auxiliary electrical magnetic part coil is fixed on the end cap (2) by magnetic conduction carriage (3).
Because the utility model has adopted the technical scheme of compound rectifier excitation, preferably resolve the pressure regulation difficult problem of rare earth permanent magnet synchronous generator, the auxiliary electrical magnetic part rotor adopts claw-pole structure, realizes that motor brushless excitation and motor efficiently move, and reliability is improved; Simultaneously the auxiliary electrical magnetic part coil links to each other with voltage regulator circuit, can change the auxiliary electrical magnetic part polarity of the magnetic field by changing exciting current polarity, thus adjusting output voltage (increase or reduce).The utility model master excitation permanent magnet rotor and auxiliary electrical magnetic part rotor be totally one rotating shaft and armature winding, and coaxial installation, and simple and compact for structure, manufacturing process is reasonable; Both improve the stability of permanent magnet generating voltage effectively, controlled motor volume and weight again.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structure diagram of auxiliary electrical magnetic part rotor.
Fig. 3 is the fore paw structure diagram.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the rear solid end structure diagram.
Fig. 6 is the left view of Fig. 5.
Fig. 7 can realize the theory diagram of voltage-regulation for the utility model.
Below in conjunction with description of drawings the utility model is further described.
Embodiment:
As shown in Figure 1, the utility model comprises the synchronous generator of a kind of Hybrid Excitation Rare Earth Permanent Magnet, comprise rotating shaft 1, end cap 2, casing 11, armature winding 8, it is characterized in that being equipped with in the rotating shaft 1 main excitation rare-earth permanent magnet rotor 9 and pressure regulation auxiliary electrical magnetic part rotor, the shared armature winding 8 of described rare-earth permanent magnet rotor and auxiliary electrical magnetic part rotor, the magnetic potential of generation is in magnetic circuit and be unified into.
Shown in Fig. 1-6, in the utility model, described auxiliary electrical magnetic part rotor is the Lundell structure, it is equated by the pawl number and the pawl number is half fore paw 4, a rear solid end 6 of number of poles, being clipped in the middle solenoid of two pawls 5 forms, connect by non-magnet material between two pawls, pawl staggers mutually, evenly distributes along circular; The auxiliary electrical magnetic part rotor is fixed in end cap 2 by magnetic conduction carriage 3, thereby has realized the non-brushing of whole motor.
Therefore working as a pawl is the S utmost point, and another pawl is the N utmost point, forms the multisegmented rotor that polarity is different, stagger mutually.The pawl of claw-pole rotor plays pole shoe, and the air-gap flux of claw-pole rotor trend is the electric excitation body N → pawl utmost point → air gap → stator → air gap → another pawl utmost point → electric excitation body S utmost point, thus grab and periphery on form the alternate polarity of N, S.When rotor rotates, just in stator armature winding 8, induce alternating potential.
When empty load of motor moved, electric current was zero in the armature winding, the permanent magnetic potential F that has only permanent magnet 9 to produce in the air gap
MExcitation magnetic potential F with electric excitation winding 5 generations
e, F
MAnd F
eAir-gap field when the foundation that interacts is unloaded.Two parts magnetic potential induces unloaded induced potential respectively in armature winding 8
The no-load emf that is produced for permanent magnetic potential and armature winding 8 interlinkages,
The no-load emf that is produced for electric excitation magnetic potential and armature winding 8 interlinkages.
When motor moves under balanced load, three-phase current on the armature winding 8 also will be set up the first-harmonic armature magnetomotive force, the excitation magnetic potential that magnetic potential that armature magnetomotive force and permanent magnet 9 produces and electric excitation winding 5 the produce synthetic magnetomotive force in the air gap when forming load that interacts, and the air-gap field when setting up load.Air-gap field when the air-gap field of this moment has been different from zero load, by the armature reaction theory of synchronous machine as can be known, the first-harmonic of the armature magnetomotive force that the three phase symmetry load electric current on the armature winding 8 is produced be one with the equidirectional circle rotation magnetomotive force with rotating speed of rotor, thereby the excitation magnetic potential that the permanent magnetic potential that produces with permanent magnet and electric excitation winding 5 produce spatially is relative static.The character of armature reaction (magnetic assist, degaussing or friendship magnetic) depends on armature magnetomotive force first-harmonic and the synthetic magnetomotive relative space position of rotor.
In order to keep the constant of generator voltage, can when load current changes, regulate the magnetic field of auxiliary electrical magnetic part part, change the induced potential of auxiliary electrical magnetic part partial stator winding, the total induced potential of stator winding is changed, and then reach the purpose of stable electric generation set end voltage.The overall voltage-regulation principle block diagram of system as shown in Figure 5.Entire circuit mainly is made up of three parts: excitation regulation circuit module, sampling and protection module and CPU control module.Auxiliary electrical magnetic part winding (5) links to each other with voltage regulator circuit, can change auxiliary electrical magnetic part polarity by changing exciting current polarity, thereby regulates output voltage (increase or reduce).
Claims (4)
1, a kind of Hybrid Excitation Rare Earth Permanent Magnet synchronous generator, comprise rotating shaft (1), end cap (2), casing (11), armature winding (8), it is characterized in that being equipped with in the rotating shaft (1) main excitation rare-earth permanent magnet rotor, with pressure regulation auxiliary electrical magnetic part rotor, described rare-earth permanent magnet rotor and the shared armature winding of auxiliary electrical magnetic part rotor (8), the magnetic potential of generation is in magnetic circuit and be unified into.
2, Hybrid Excitation Rare Earth Permanent Magnet synchronous generator according to claim 1, it is characterized in that described auxiliary electrical magnetic part rotor is the Lundell structure, it is equated by the pawl number and the pawl number is half fore paw (4), a rear solid end (6) of number of poles, being clipped in the middle solenoid (5) of two pawls forms, connect by non-magnet material between two pawls, pawl staggers mutually, evenly distributes along circular.
3, Hybrid Excitation Rare Earth Permanent Magnet synchronous generator according to claim 2 is characterized in that the auxiliary electrical magnetic part rotor is fixed on the end cap (2) by magnetic conduction carriage (3).
4, the rare rare earth permanent magnet synchronous generator of compound rectifier excitation according to claim 1 is characterized in that auxiliary electrical magnetic part winding (5) links to each other with voltage regulator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113995 CN2655505Y (en) | 2003-10-30 | 2003-10-30 | Composite excitation rare-earth permanent magnetic synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113995 CN2655505Y (en) | 2003-10-30 | 2003-10-30 | Composite excitation rare-earth permanent magnetic synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2655505Y true CN2655505Y (en) | 2004-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320113995 Expired - Lifetime CN2655505Y (en) | 2003-10-30 | 2003-10-30 | Composite excitation rare-earth permanent magnetic synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2655505Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369357C (en) * | 2005-12-27 | 2008-02-13 | 上海大学 | Bypass mixed excitation electrical motor |
| CN104682652A (en) * | 2013-12-02 | 2015-06-03 | 时间和装配设备贸易电子有限公司 | High-performance brushless alternating current generator |
-
2003
- 2003-10-30 CN CN 200320113995 patent/CN2655505Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369357C (en) * | 2005-12-27 | 2008-02-13 | 上海大学 | Bypass mixed excitation electrical motor |
| CN104682652A (en) * | 2013-12-02 | 2015-06-03 | 时间和装配设备贸易电子有限公司 | High-performance brushless alternating current generator |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131030 Granted publication date: 20041110 |