CN100468923C - A.C./D.C permanent-magnet synchronous generator - Google Patents
A.C./D.C permanent-magnet synchronous generator Download PDFInfo
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- CN100468923C CN100468923C CNB200610043361XA CN200610043361A CN100468923C CN 100468923 C CN100468923 C CN 100468923C CN B200610043361X A CNB200610043361X A CN B200610043361XA CN 200610043361 A CN200610043361 A CN 200610043361A CN 100468923 C CN100468923 C CN 100468923C
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Abstract
The stator of AC/DC permanent magnet generator includes three sets of winding in three phases. One set of winding is in use for providing AC power. Being in difference of 30 degrees of electrical angle each other, the other two sets of winding are connected to rectifier for supplying power for DC load. Rotor of generator is in surface recombination pole type structure. Magnetic pole is composed of permanent magnetic material of Rb-Fe-B and a soft magnetic material. Glass tape without woof is wrapped and fixed on rotor. A pole of permanent magnetism occupies 144 degrees of electrical angle. Being located at back pole tip on surface of magnetic pole, soft magnet occupies 9 degrees. The disclosed AC/DC permanent magnet synchronous generator possesses higher efficiency and better external characteristic.
Description
One, technical field
The invention belongs to technical field of generators.Be particularly related to a kind of alternating current-direct current magneto alternator.
Two, background technology
Use less relatively to the research of magneto alternator both at home and abroad at present, and the magneto alternator that two kinds of supply power modes of alternating current-direct current are provided is not simultaneously seen domestic and international report as yet, the subject matter that permanent magnet generator exists is that the electromagnetic field of permanent magnet generator can't be regulated, behind motor load, can strengthen with the voltage regulation of the variation motor of load.Conventional electric excitation generator is because having brush makes the security of operation of electric power system have hidden danger, so and because exciting current generation copper loss is low than the efficient of magneto.
Three, summary of the invention
The purpose of this invention is to provide a kind of alternating current-direct current magneto alternator, it had both had the external characteristic of the motor preferably that compares favourably with the common electrical excitation, also had the high characteristics of common magneto efficient.
Key technology of the present invention is: have three covers, three phase windings on the permanent magnet motor stator, one cover winding is used to provide alternating electromotive force, remaining two cover winding phase place mutual deviations, 30 degree electrical degree, connecing rectifier is the DC load power supply, winding is divided into two-layer in the motor slot, one deck is an AC Windings, one deck is the direct current winding, electric insulation between each three phase winding, and the alternating current-direct current winding all adopts single layer winding version, AC Windings adopts short distance, and the direct current winding adopts whole distance.The rotor of motor is a surface recombination magnetic pole type structure, and magnetic pole is made of a rubidium iron B permanent magnetic material and a soft magnetic material, and rotor outsourcing one deck does not have the latitude glass tape to be fixed, and a utmost point permanent magnetism magnetic pole accounts for 144
0Electrical degree, the soft magnetic bodies that is positioned at the pole surface trailing pole tip accounts for 8
0～10
0Electrical degree.Rotor outsourcing one deck does not have the latitude glass tape to be fixed, and permanent magnetic material comes off greatly because of centrifugal force when preventing the rotor high-speed running.
The present invention can be applicable to the occasion that naval vessel, aircraft, mobile communication, oil drilling platform etc. need alternating current-direct current to power simultaneously, the efficient of the more general electric excitation alternating current-direct current permanent magnet generator of this alternating current-direct current magneto alternator improves, owing to be provided with soft magnetic bodies at rotor pole surface trailing pole tip place voltage change ratio is improved, experimentizing by emulation and to model machine can make the stability of output voltage be improved after proof adds the soft magnetic material of certain physical dimension.This machine promptly has higher efficient and has external characteristic preferably again, and its voltage regulation can be controlled in the critical field.
Four, description of drawings
Fig. 1 is an alternating current-direct current magneto alternator structural representation;
Fig. 2 is the influence curve figure of direct current winding nominal load power factor to voltage;
Fig. 3 is the influence curve figure of the specified no-load power factor of direct current winding to voltage.Wherein: 1, direct current winding, 2, AC Windings, 3, stator core, 4, permanent magnet, 5, soft magnetic material, 6, rotor core, 7, rotating shaft.
Five, embodiment
Four-pole permanent magnet synchronous generator, rotating speed are 1500 rev/mins, and permanent magnet motor stator has stator core 3, have three covers, three phase windings on it, a cover winding is an AC Windings 2, places upper strata in the stator slot, adopt the short distance winding to reduce harmonic wave, be used to provide alternating electromotive force, remaining two cover winding is direct current winding 1, two cover winding phase place mutual deviation 30 degree electrical degrees, place lower floor in the stator slot, adopt whole distance, connecing rectifier output direct current is the DC load power supply, electric insulation between three windings; The rotor of motor is made of rotor core 6 and rotating shaft 7, rotor surface adopts composite pole formula structure, magnetic pole is made of rubidium iron boron permanent magnet 4 and soft magnetic material 5, rotor outsourcing one deck does not have the latitude glass tape to be fixed, one extremely descends permanent magnetism magnetic pole to account for 144 ° of electrical degrees, and the soft magnetic bodies that is positioned at the pole surface trailing pole tip accounts for 9 ° of electrical degrees.
Drive this generator with prime mover with 1500 rev/mins rotating speed and rotate, AC Windings output AC electric current, the direct current winding is exportable direct current behind six commutating phases, occurs armature reaction behind the generator loading, and rotor magnetic potential is f
0, armature d-axis magnetic potential f
Ad, armature cross-magnetizing ampere-turn f
AqIn general, the d-axis armature reaction that armature supply produces is a degaussing character, and quadrature axis armature reaction then is degaussing on one side, Yi Bian increase magnetic.Cross-magnetizing ampere-turn increases magnetic property at the trailing pole tip place, places soft magnetic material in this zone, and this regional permeability will increase, thereby improves cross-magnetizing ampere-turn, reaches the purposes that increase magnetic more.The output end voltage of generator is increased, reduce voltage regulation.Voltage regulation was best when the soft magnetic bodies that is positioned at the pole surface trailing pole tip accounted for 8 °～10 ° electrical degrees.Voltage regulation (%) when direct current winding nominal load AC Windings of the present invention is led to rated current under the different capacity factor as shown in Figure 2, direct current winding of the present invention zero load, the voltage regulation during the AC Windings rated current under the different capacity factor (%) as shown in Figure 3.Solid line is the band soft magnetic material among Fig. 2, Fig. 3, and the power-factor of load of dotted line for not with soft magnetic material the time is to the influence of voltage.Soft magnetic material is of a size of δ=8 °, and experiment shows, has used after the soft magnetic material, and the voltage regulation of motor is obviously improved, and the operational efficiency of this machine improves 9 percentage points than same model common electrical excitation electromotor.
Claims (1)
1, a kind of alternating current-direct current magneto alternator, have three covers, three phase windings on the permanent magnet motor stator, one cover winding is used to provide alternating electromotive force, remaining two cover winding phase place mutual deviations, 30 degree electrical degree, connecing rectifier is the DC load power supply, winding is divided into two-layer in the motor slot, one deck is an AC Windings, one deck is the direct current winding, electric insulation between each three phase winding, the alternating current-direct current winding all adopts single layer winding version, and AC Windings adopts short distance, the direct current winding adopts whole distance, the rotor that it is characterized in that motor is a surface recombination magnetic pole type structure, and magnetic pole is made of a rubidium iron B permanent magnetic material and a soft magnetic material, and rotor outsourcing one deck does not have the latitude glass tape to be fixed, one utmost point permanent magnetism magnetic pole accounts for 144 ° of electrical degrees, and the soft magnetic bodies that is positioned at the pole surface trailing pole tip accounts for 8 °～10 ° electrical degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610043361XA CN100468923C (en) | 2006-03-30 | 2006-03-30 | A.C./D.C permanent-magnet synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610043361XA CN100468923C (en) | 2006-03-30 | 2006-03-30 | A.C./D.C permanent-magnet synchronous generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1835354A CN1835354A (en) | 2006-09-20 |
| CN100468923C true CN100468923C (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610043361XA Expired - Fee Related CN100468923C (en) | 2006-03-30 | 2006-03-30 | A.C./D.C permanent-magnet synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100468923C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007011261A1 (en) * | 2007-03-06 | 2008-09-11 | Vensys Energy Ag | Generator for wind turbines |
| JP4569839B2 (en) * | 2007-05-25 | 2010-10-27 | 株式会社デンソー | AC motor |
| CN102522755A (en) * | 2011-12-14 | 2012-06-27 | 上海信元瑞电气有限公司 | Household-type voltage-reduction energy-saving device |
| CN107565727B (en) * | 2016-06-30 | 2021-02-02 | 宁玉泉 | Variable speed internal combustion engine generator set-variable speed constant frequency AC/DC salient pole synchronous generator set |
| CN109713957B (en) * | 2018-11-21 | 2021-04-23 | 南京航空航天大学 | Double-channel alternating current-direct current hybrid power supply starting power generation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554474A (en) * | 1983-07-07 | 1985-11-19 | Mitsubishi Denki Kabushiki Kaisha | Stator for a magnet motor |
| CN1056383A (en) * | 1991-02-27 | 1991-11-20 | 中国科学院电工研究所 | Nd-Fe-B permanent magnetic and soft magnetism electric motor with combined magnetic pole |
| CN1116370A (en) * | 1994-08-01 | 1996-02-07 | 中国人民解放军海军工程学院 | Synchronous generator of three-phase ac and multi-phase rectification symultaneous power supply |
| US5631512A (en) * | 1994-04-13 | 1997-05-20 | Toyota Jidosha Kabushiki Kaisha | Synchronous motor having magnetic poles of permanent magnet and magnetic poles of a soft magnetic material |
| CN1346170A (en) * | 2000-09-26 | 2002-04-24 | 吴加林 | Multi-winding generator |
-
2006
- 2006-03-30 CN CNB200610043361XA patent/CN100468923C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554474A (en) * | 1983-07-07 | 1985-11-19 | Mitsubishi Denki Kabushiki Kaisha | Stator for a magnet motor |
| CN1056383A (en) * | 1991-02-27 | 1991-11-20 | 中国科学院电工研究所 | Nd-Fe-B permanent magnetic and soft magnetism electric motor with combined magnetic pole |
| US5631512A (en) * | 1994-04-13 | 1997-05-20 | Toyota Jidosha Kabushiki Kaisha | Synchronous motor having magnetic poles of permanent magnet and magnetic poles of a soft magnetic material |
| CN1116370A (en) * | 1994-08-01 | 1996-02-07 | 中国人民解放军海军工程学院 | Synchronous generator of three-phase ac and multi-phase rectification symultaneous power supply |
| CN1346170A (en) * | 2000-09-26 | 2002-04-24 | 吴加林 | Multi-winding generator |
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|---|---|
| CN1835354A (en) | 2006-09-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Linhai Xintaige Machinery Co., Ltd. Assignor: Shandong University Contract record no.: 2010330002048 Denomination of invention: A.C./d.c permanent-magnet synchronous generator Granted publication date: 20090311 License type: Exclusive License Open date: 20060920 Record date: 20101009 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20140330 |