CN112242738A - Double three-phase permanent magnet synchronous generator and rectification system - Google Patents
Double three-phase permanent magnet synchronous generator and rectification system Download PDFInfo
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- CN112242738A CN112242738A CN202011020450.9A CN202011020450A CN112242738A CN 112242738 A CN112242738 A CN 112242738A CN 202011020450 A CN202011020450 A CN 202011020450A CN 112242738 A CN112242738 A CN 112242738A
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- phase
- permanent magnet
- magnet synchronous
- synchronous generator
- bridge rectifier
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The embodiment of the invention discloses a double three-phase permanent magnet synchronous generator and a rectification system, which comprise: a double three-phase permanent magnet synchronous generator and a rectification system; the double three-phase permanent magnet synchronous generator comprises a stator and two sets of three-phase windings which are embedded on the stator and have the same structure, wherein the two sets of three-phase windings have an electrical angle difference of 30 degrees in space; the rectification system comprises a first uncontrolled full-bridge rectifier and a second uncontrolled full-bridge rectifier which are identical in structure, wherein three phases of one three-phase winding are connected to three bridge arms of the first uncontrolled full-bridge rectifier in a one-to-one correspondence mode, three phases of the other three-phase winding are connected to three bridge arms of the second uncontrolled full-bridge rectifier in a one-to-one correspondence mode, and output ends of the first uncontrolled full-bridge rectifier and the second uncontrolled full-bridge rectifier are connected in parallel and then output. The embodiment of the invention realizes the purposes of reducing the rectified direct-current voltage ripple and improving the redundancy of the generator and the rectification system through the rectification system of the double three-phase permanent magnet synchronous generator.
Description
Technical Field
The invention relates to the technical field of a generator arrangement system, in particular to a double three-phase permanent magnet synchronous generator and a rectification system.
Background
The voltage ripple of the direct-current voltage generated by the single three-phase permanent magnet synchronous generator through the uncontrolled full-bridge rectifier is large, if the electric equipment is sensitive to the voltage ripple, the direct-current voltage cannot be used directly, and the direct-current voltage can be used after being filtered by other means, so that the manufacturing cost is increased.
In addition, the single three-phase permanent magnet synchronous generator passes through the uncontrolled full-bridge rectifier, and if any one component in the generator or the rectifier is damaged, the rectifying system of the single three-phase permanent magnet synchronous generator cannot be used.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a double three-phase permanent magnet synchronous generator and a rectification system, which aim to reduce rectified direct current voltage ripple and improve the redundancy of the generator and the rectification system through the rectification system of the double three-phase permanent magnet synchronous generator.
The technical scheme of the invention is as follows:
the embodiment of the invention provides a double three-phase permanent magnet synchronous generator and a rectification system, which comprise: a double three-phase permanent magnet synchronous generator and a rectification system;
the double three-phase permanent magnet synchronous generator comprises a stator 1 and two sets of three-phase windings which are embedded on the stator 1 and have the same structure, wherein the two sets of three-phase windings have a spatial difference of 30 degrees in electrical angle;
the rectifying system comprises a first uncontrolled full-bridge rectifier 2 and a second uncontrolled full-bridge rectifier 3 which are identical in structure, wherein three phases of one three-phase winding are connected to three bridge arms of the first uncontrolled full-bridge rectifier 2 in a one-to-one correspondence mode, three phases of the other three-phase winding are connected to three bridge arms of the second uncontrolled full-bridge rectifier 3 in a one-to-one correspondence mode, and output ends of the first uncontrolled full-bridge rectifier 2 and the second uncontrolled full-bridge rectifier 3 are connected in parallel and then output.
Optionally, in the double three-phase permanent magnet synchronous generator and the rectification system as described above, the two sets of three-phase windings include a three-phase winding i and a three-phase winding ii;
the three-phase winding I comprises an A phase, a B phase and a C phase, and the three-phase winding II comprises a U phase, a V phase and a W phase.
Optionally, in the double three-phase permanent magnet synchronous generator and the rectification system as described above, phase a and phase B, phase B and phase C, and phase C and phase a of the three-phase winding i are spatially separated by 120 degrees in electrical angle.
Optionally, in the double three-phase permanent magnet synchronous generator and the rectification system as described above, in the three-phase winding ii, the phase U and the phase V, the phase V and the phase W, and the phase W and the phase U are spatially separated by 120 degrees in electrical angle.
Optionally, in the double three-phase permanent magnet synchronous generator and the rectification system as described above, both the two sets of three-phase windings are three-phase windings with 4-pole and 24-slot structures; each pole of the three-phase winding comprises 6 slots, the 6 slots of the three-phase winding I are sequentially provided with two A phases, two C phases and two B phases, and the 6 slots of the three-phase winding II are sequentially provided with two U phases, two W phases and two V phases.
Optionally, in the dual three-phase permanent magnet synchronous generator and the rectification system as described above, the first phase a of the three-phase winding i and the first phase U of the three-phase winding ii are spatially different by 30 electrical degrees.
Optionally, in the double three-phase permanent magnet synchronous generator and the rectification system as described above, the current directions of the two adjacent poles in each three-phase winding are opposite.
Optionally, in the double three-phase permanent magnet synchronous generator and the rectification system as described above, the positive electrodes of the first uncontrolled full-bridge rectifier 2 and the second uncontrolled full-bridge rectifier 3 are connected in parallel to output a rectified positive dc voltage, and the negative electrodes are connected in parallel to output a rectified negative dc voltage.
The invention has the advantages that:
the embodiment of the invention provides a double three-phase permanent magnet synchronous generator and a rectification system, wherein two sets of three-phase windings with the same structure are embedded in a stator of the double three-phase permanent magnet synchronous generator, the two sets of three-phase windings have certain electrical angle difference in space, each set of three-phase winding is connected to an uncontrolled full-bridge rectifier, so that three-phase alternating current is converted into direct current, and output direct current voltage ripples are reduced by connecting the two uncontrolled full-bridge rectifiers in parallel. In addition, the double three-phase permanent magnet synchronous generator and the uncontrolled full-bridge rectifier in the embodiment of the invention are composed of two sets of independent three-phase windings and uncontrolled full-bridge rectifier, after one set fails, the normal work of the other set cannot be influenced, and the redundancy of the whole motor is improved.
Description of the drawings:
the accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of a dual three-phase permanent magnet synchronous generator and a rectification system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a double three-phase permanent magnet synchronous generator and two three-phase windings in a rectification system according to an embodiment of the invention.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The following specific embodiments of the present invention may be combined, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 1 is a schematic structural diagram of a double three-phase permanent magnet synchronous generator and a rectification system according to an embodiment of the present invention. The double three-phase permanent magnet synchronous generator and the rectification system provided by the embodiment of the invention can comprise: double three-phase permanent magnet synchronous generator and rectification system.
As shown in fig. 1, in the structure of the double three-phase permanent magnet synchronous generator and the rectification system, the double three-phase permanent magnet synchronous generator includes a stator 1 and two sets of three-phase windings embedded in the stator 1 and having the same structure, and the two sets of three-phase windings have a spatial phase difference of 30 degrees.
The rectification system in the embodiment of the present invention also includes a first uncontrolled full-bridge rectifier 2 and a second uncontrolled full-bridge rectifier 3 which have the same structure, wherein three phases of the above-mentioned one three-phase winding are connected to three bridge arms of the first uncontrolled full-bridge rectifier 2 in a one-to-one correspondence, three phases of the other three-phase winding are connected to three bridge arms of the second uncontrolled full-bridge rectifier 3 in a one-to-one correspondence, and output ends of the first uncontrolled full-bridge rectifier 2 and the second uncontrolled full-bridge rectifier 3 are connected in parallel and then output.
The following describes in detail a specific structure of a dual three-phase permanent magnet synchronous generator and a rectification system provided by an embodiment of the present invention by using a specific example.
The two sets of three-phase windings in the embodiment of the invention comprise: three-phase winding I and three-phase winding II. The three phases in the three-phase winding I respectively comprise an A phase, a B phase and a C phase, and the three phases in the three-phase winding II respectively comprise a U phase, a V phase and a W phase; and the phase difference between the three-phase winding I and the three-phase winding II is 30 electrical degrees in space.
As shown in fig. 1, the a, B and C phases of the three-phase winding i are connected to three arms of the first uncontrolled full-bridge rectifier 2 in a one-to-one correspondence, and the U, V and W phases of the three-phase winding ii are connected to three arms of the second uncontrolled full-bridge rectifier 3 in a one-to-one correspondence.
In practical application, in the three-phase winding I, the phase A and the phase B, the phase B and the phase C, and the phase C and the phase A are different in electrical angle of 120 degrees in space.
Similarly, in the three-phase winding II, the U phase and the V phase, the V phase and the W phase and the U phase are spatially different by 120 degrees in electrical angle.
Fig. 2 is a schematic diagram of wiring of two three-phase windings in a double three-phase permanent magnet synchronous generator and a rectification system according to an embodiment of the present invention. Fig. 2 shows a wiring manner of three-phase windings in a set of 4-pole, 24-slot double three-phase permanent magnet synchronous generator and a rectification system, wherein only a phase a and a phase U of the three-phase windings are shown in fig. 2, and the other phases are sequentially backwards 120 degrees in electrical angle.
In a specific implementation manner of the embodiment of the invention, two sets of three-phase windings can both adopt three-phase windings with 4-pole and 24-slot structures, in fig. 2, a solid line represents a three-phase winding i, and a dotted line represents a three-phase winding ii, so that each pole of each three-phase winding comprises 6 slots, the 6 slots of the three-phase winding i are sequentially two a-phases, two C-phases and two B-phases, and the 6 slots of the three-phase winding ii are sequentially two U-phases, two W-phases and two V-phases; fig. 2 schematically shows a first a phase of a three-phase winding i and a first U phase of a three-phase winding ii.
In the above embodiment of the present invention, it is explained that the two sets of three-phase windings have an electrical angle difference of 30 degrees in space, and the specific implementation manner of the electrical angle difference of 30 degrees may be: the first phase a of the three-phase winding i differs from the first phase U of the three-phase winding ii by 30 degrees in space, i.e., the phase a and the phase U identified in fig. 2 differ by 30 degrees in space, and the remaining phases of the three-phase winding i also differ by 30 degrees in space from the corresponding phases of the three-phase winding ii.
It should be noted that, in the structure of the three-phase winding shown in fig. 2, the current directions of two adjacent poles in each three-phase winding are opposite; the direction of current flow for each pole of the three-phase winding is illustrated in fig. 2, with the direction of current flow for adjacent poles being opposite.
In the rectification system of the embodiment of the invention, the positive electrodes of the first uncontrolled full-bridge rectifier 2 and the second uncontrolled full-bridge rectifier 3 are connected in parallel and then output rectified positive direct-current voltage, and the negative electrodes are connected in parallel and then output rectified negative direct-current voltage.
According to the double three-phase permanent magnet synchronous generator and the rectification system provided by the embodiment of the invention, the stator of the double three-phase permanent magnet synchronous generator is embedded with two sets of three-phase windings with the same structure, the two sets of three-phase windings have certain electrical angle difference in space, each set of three-phase winding is connected to one uncontrolled full-bridge rectifier, so that three-phase alternating current is converted into direct current, and output direct current voltage ripples are reduced through parallel connection of the two uncontrolled full-bridge rectifiers. In addition, the double three-phase permanent magnet synchronous generator and the uncontrolled full-bridge rectifier in the embodiment of the invention are composed of two sets of independent three-phase windings and uncontrolled full-bridge rectifier, after one set fails, the normal work of the other set cannot be influenced, and the redundancy of the whole motor is improved.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A dual three-phase permanent magnet synchronous generator and rectification system comprising: a double three-phase permanent magnet synchronous generator and a rectification system;
the double three-phase permanent magnet synchronous generator comprises a stator (1) and two sets of three-phase windings which are embedded on the stator (1) and have the same structure, wherein the two sets of three-phase windings have an electrical angle difference of 30 degrees in space;
the rectifying system comprises a first uncontrolled full-bridge rectifier (2) and a second uncontrolled full-bridge rectifier (3) which are identical in structure, wherein three phases of one three-phase winding are connected to three bridge arms of the first uncontrolled full-bridge rectifier (2) in a one-to-one correspondence mode, three phases of the other three-phase winding are connected to three bridge arms of the second uncontrolled full-bridge rectifier (3) in a one-to-one correspondence mode, and output ends of the first uncontrolled full-bridge rectifier (2) and the second uncontrolled full-bridge rectifier (3) are connected in parallel and then output.
2. A dual three-phase permanent magnet synchronous generator and rectification system as claimed in claim 1 wherein said two sets of three-phase windings comprise a three-phase winding i and a three-phase winding ii;
the three-phase winding I comprises an A phase, a B phase and a C phase, and the three-phase winding II comprises a U phase, a V phase and a W phase.
3. The dual three-phase permanent magnet synchronous generator and rectifier system according to claim 2, wherein phase a differs from phase B, phase B differs from phase C, phase C differs from phase a by 120 degrees in space in said three-phase winding i.
4. The dual three-phase permanent magnet synchronous generator and rectifier system according to claim 3, wherein the phase windings II are spatially separated by 120 degrees in phase from each other in phase U and phase V, phase V and phase W, and phase W and phase U.
5. The dual three-phase permanent magnet synchronous generator and rectification system according to claim 4 wherein both sets of three-phase windings are three-phase windings in a 4-pole, 24-slot configuration; each pole of the three-phase winding comprises 6 slots, the 6 slots of the three-phase winding I are sequentially provided with two A phases, two C phases and two B phases, and the 6 slots of the three-phase winding II are sequentially provided with two U phases, two W phases and two V phases.
6. The dual three-phase permanent magnet synchronous generator and rectification system according to claim 5 wherein the first phase A of said three-phase winding I is spatially separated from the first phase U of said three-phase winding II by 30 electrical degrees.
7. A twin three-phase permanent magnet synchronous generator and rectification system as claimed in claim 6 wherein the current flow direction of adjacent poles in each of said three phase windings is opposite.
8. The dual three-phase permanent magnet synchronous generator and rectification system according to any one of claims 1 to 7, wherein the positive electrodes of the first uncontrolled full-bridge rectifier (2) and the second uncontrolled full-bridge rectifier (3) are connected in parallel to output rectified positive direct current voltage, and the negative electrodes are connected in parallel to output rectified negative direct current voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020450.9A CN112242738A (en) | 2020-09-25 | 2020-09-25 | Double three-phase permanent magnet synchronous generator and rectification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020450.9A CN112242738A (en) | 2020-09-25 | 2020-09-25 | Double three-phase permanent magnet synchronous generator and rectification system |
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| CN112242738A true CN112242738A (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011020450.9A Pending CN112242738A (en) | 2020-09-25 | 2020-09-25 | Double three-phase permanent magnet synchronous generator and rectification system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060267A (en) * | 2006-04-20 | 2007-10-24 | 梁昌勇 | Vehicle permanent magnet generator with double three-phase half-wave rectifier |
| CN101951099A (en) * | 2010-08-25 | 2011-01-19 | 哈尔滨工业大学 | High-performance direct-current (DC) output permanent magnet generator system |
| CN102005884A (en) * | 2010-11-11 | 2011-04-06 | 哈尔滨工业大学 | Wide rotation speed range output permanent magnet constant speed generator system |
-
2020
- 2020-09-25 CN CN202011020450.9A patent/CN112242738A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060267A (en) * | 2006-04-20 | 2007-10-24 | 梁昌勇 | Vehicle permanent magnet generator with double three-phase half-wave rectifier |
| CN101951099A (en) * | 2010-08-25 | 2011-01-19 | 哈尔滨工业大学 | High-performance direct-current (DC) output permanent magnet generator system |
| CN102005884A (en) * | 2010-11-11 | 2011-04-06 | 哈尔滨工业大学 | Wide rotation speed range output permanent magnet constant speed generator system |
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Application publication date: 20210119 |