CN1295849C - Permanent-magnet synchronous generator having composite armature winding - Google Patents
Permanent-magnet synchronous generator having composite armature winding Download PDFInfo
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- CN1295849C CN1295849C CNB021214166A CN02121416A CN1295849C CN 1295849 C CN1295849 C CN 1295849C CN B021214166 A CNB021214166 A CN B021214166A CN 02121416 A CN02121416 A CN 02121416A CN 1295849 C CN1295849 C CN 1295849C
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Abstract
The present invention discloses a permanent-magnet synchronous generator having a composite armature winding, which is composed of a generator and an automatic voltage regulating system, wherein the generator is mainly composed of a stator, a rotor, an armature winding, a permanent magnet and a casing. An armature winding of the stator or an armature winding of the rotor is the composite armature winding which is composed of a main winding and a group of or a plurality of groups of regulating windings. The main winding is the same to an armature winding of a traditional generator, and can be a single-phase winding or a polyphase winding. The number of phases of the regulating winding is the same to the number of phases of the main winding. Terminal voltage of the main winding is monitored by the automatic voltage regulating system at real time, the mode of connection in series and the number of connection in series of the regulating winding and the main winding are controlled according to the terminal voltage of the main winding. The present invention has the advantages of stable output voltage, good power supplying quality, high motor efficiency, evident energy saving effects and simple structure.
Description
Technical field
The present invention relates to a kind of magneto alternator, refer to a kind of magneto alternator composite armature winding, that volume is little, power supply quality is good that has especially.
Background technology
For traditional generator, the excitation field in the generator passes to electric current by excitation winding and additive excitation winding and produces, and therefore will consume certain energy in the excitation process, and the consumption of these energy has reduced the efficient of generator.When these Conversion of energy are heat, improved the temperature rise of generator again.In addition, because the excitation winding of generator is arranged on the rotor usually,, generally realize by brush and slip ring system for giving the excitation winding power supply of rotation, again since useful life of brush than short many of life of generator, this just makes the operational reliability of generator reduce greatly.And the rotation along with rotor in generator operation of brush and slip ring produces very big relative motion, under the situation of energising, can produce electric spark, and surrounding environment is produced electromagnetic interference.
Appearance of-----neodymium iron boron and manufacturing technology is constantly perfect along with high-performance rare-earth permanent magnet material, and the application of permanent magnetic material in motor become the focus of research in the world.Develop magneto alternator, utilized the electric excitation system in the contour performance permanent magnetic material replacement of the neodymium iron boron conventional generator.Utilize the residual magnetic flux density of permanent magnetic material to set up the excitation field of generator, need not to consume any energy, thereby the efficient of generator is improved, temperature rise reduces, simultaneously also saved the excitation winding in the conventional electric generators, brush and slip ring, made generator Structure simpler, volume reduces, reliability increases, to the electromagnetic pollution reduction of surrounding environment.
Although the relative electric excitation generator of permanent magnet generator has above-mentioned plurality of advantages, itself has the shortcoming that is difficult to overcome again: 1, because the generator excitation magnetic field that permanent magnetic material produced can not be regulated, make generator output voltage be difficult to control.2, because the dispersiveness of permanent magnetic material and processing technology, and the temperature coefficient of neodymium iron boron is bigger, causes generator output voltage to disperse offrating.The application of permanent magnet generator is very restricted, particularly is difficult to apply in the field that power supply quality is had relatively high expectations.
The US-5625276A patent document has disclosed the scheme that a kind of generator changes voltage, and its flesh and blood is to utilize the homophase armature winding under the different poles to realize that by serial or parallel connection voltage changes.Because the homophase armature winding under these different poles must be the same, change voltage and be voltage with a homophase armature winding generation extremely down and be one-level and change progressively, this ten thousand case can't resolve the generator loading change in voltage that causes because of permanent magnet excitation is unadjustable in the above permanent magnet generator, causes generator voltage different with setting with discreteness because of permanent magnetic material performance.Certainly, this document does not also propose to improve the way of load voltage waveform.
Summary of the invention
At the shortcoming that exists in the above prior art, the technical problem to be solved in the present invention provides a kind of magneto alternator that is made of compound winding armature winding and the pressure regulation winding that is independent of armature winding that has, its power supply quality is good, can keep generator output voltage stable, the efficient height, can improve load voltage waveform, energy-saving effect is remarkable, simple in structure.
For achieving the above object, the present invention takes following design: a kind of magneto alternator that has the composite armature winding, and it comprises stator, rotor, armature winding, permanent magnet, casing and automatic voltage regulating system, it is characterized in that:
Described armature winding is the composite armature winding when pressure regulation moves, and it is made up of main winding and at least one pressure regulation winding; The pressure regulation winding is with forward identical with the main winding electromotive force or reverse manner and the main winding series connection opposite with the main winding electromotive force; (IN1 IN2) provides fundamental voltage at described main winding two ends; Described each pressure regulation winding is the independently winding beyond the main winding, and the normal running conditions during non-pressure regulation does not have with main winding down and is electrically connected;
The number of phases of described pressure regulation winding is identical with the main winding number of phases;
Described automatic voltage regulating system is the fundamental voltage at the described main winding of monitoring two ends in real time, when it departs from setting, described automatic voltage regulating system is controlled in the described pressure regulation winding one or several with forward or backwards mode and the series connection of described main winding, constitutes the output voltage of generator jointly.
The number of turn of described each pressure regulation winding is different with distribution.The number of turn between described each pressure regulation winding can also be identical with distribution.
Respectively the phase winding axis locus of the locus of the phase winding axis of described each pressure regulation winding and main winding is basic identical extremely down.
Described armature winding is positioned on the rotor or on the stator.
Described automatic voltage regulating system mainly is made of voltage sample circuit, voltage comparator circuit, power driving circuit, electric current and voltage sample circuit and relay group or high-power switch device group etc.; The signal input part of voltage sample circuit links to each other with generator main winding two ends, and its signal output part links to each other with an end of voltage comparator circuit; The signal output part of voltage comparator circuit links to each other with relay group or high-power switch device group by power driving circuit, the output contact of relay group or high-power switch device group links to each other with the pressure regulation winding, constitutes the connecting circuit that the pressure regulation winding is connected and inserted or excise in the mode identical or opposite with the main winding electromotive force.
Described automatic voltage regulating system also comprises the electric current and voltage protective circuit; The signal input part of described electric current and voltage sample circuit and generator output voltage end (OUT1; OUT2) link to each other; the signal output part of electric current and voltage sample circuit links to each other with relay group or high-power switch device group by electric current and voltage protective circuit, power driving circuit, constitutes the protective circuit of cutting off the generator powered circuit.
Because the present invention adopts above technical scheme, promptly one or more groups pressure regulation winding of series connection on the rotor of generator or stator armature winding makes the armature winding on rotor or the stator become the composite armature winding; Then,, control the pressure regulation winding number of connecting, thereby generator output voltage is remained in the output voltage range of permission according to the main winding terminal voltage by automatic voltage regulating system with the main winding forwards/reverse, generator output voltage is more stable, power supply quality is better, and structure is simpler.The present invention compares with traditional electric excitation generator, has more following advantage: 1, electric efficiency height, energy-saving effect is remarkable.Because the present invention adopts permanent-magnet to produce magnetic field, in the excitation process, need not to consume any energy, and the resistance in dynamo-electric magnet exciting coil of traditional generating and the excitation ancillary coil is heat energy with Conversion of energy, in the excitation process, consume lot of energy, therefore, energy-saving effect of the present invention is remarkable, electric efficiency is high.2, electric machine temperature rise is low, and overload capacity is strong, is adapted at working under the adverse circumstances.3, output voltage stabilization, the waveform abnormal rate is low, power supply quality good.4, the present invention adopts automatic voltage regulating system control, regulator generator output voltage, so the generator dynamic stability is good.5, because the present invention adopts permanent magnet to produce excitation field, need not structures such as brush, collector ring, so simple in structure, operational reliability is high, long service life.6, the present invention has eliminated slot ripples substantially, and noise is little, and electromagnetic interference is minimum.The present invention is by magnetic field analysis and optimal design, the influence of slot ripples in the generator is reduced to negligible degree, slot ripples in its output voltage is zero substantially, other each higher harmonic components are also much smaller than conventional electric excitation generator, the electromagnetic noise of motor is declined to a great extent, the interference of communication apparatus and electronic instrument is become very small.
Description of drawings
Fig. 1 is composite armature winding of the present invention and automatic voltage regulating system theory diagram
Fig. 2, Fig. 3, Fig. 4 are composite armature winding of the present invention and automatic voltage regulating system physical circuit figure
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As shown in Figure 1, the present invention has the magneto alternator of composite armature winding and is made up of generator 1 and automatic voltage regulating system 2 two parts, and generator can be by the mechanical driving device formation generating set that links to each other with diesel engine or gasoline engine etc.Generator 1 is with the difference of traditional magneto alternator: its rotor or stator armature winding are the composite armature winding.As shown in Figure 1, composite rotors armature winding or compound stator armature winding are to be made of one group of main winding and some groups of pressure regulation windings.Main winding is identical with the armature winding of conventional electric generators, can be single-phase or polyphase windings.The number of phases of pressure regulation winding is identical with the main winding number of phases, and the locus of the phase winding axis of the locus of its phase winding axis and main winding is basic identical.
It also can be many groups that the pressure regulation winding can be one group, the number of turn and the distribution of different pressure regulation windings can be the same or different, but, the number of pressure regulation winding, the number of turn and distribution will be decided according to the requirement of pressure regulation and output voltage wave, principle is to be the vector superposition of induced potential by part or all of pressure regulation winding and connecting of main winding, make generator under the different loads situation, the output voltage excursion all remains in the allowed band, and the distribution of pressure regulation winding with due regard to, making the resultant voltage waveform of itself and main winding is that the generator output voltage irregularity of wave form adheres to specification.
In order to control the number of the pressure regulation winding of connecting with main winding, the present invention has also designed automatic voltage regulating system 2.As shown in Figure 1, automatic voltage regulating system 2 mainly is made of voltage sample circuit, voltage comparator circuit, power driving circuit, electric current and voltage sample circuit, electric current and voltage protective circuit and relay group or high-power switch device group etc.The signal input part of voltage sample circuit links to each other with generator composite armature winding main winding two ends, and its signal output part links to each other with an end of voltage comparator circuit; The signal output part of voltage comparator circuit links to each other with relay group or high-power switch device group by power driving circuit; The output contact of relay group or high-power switch device group links to each other with the pressure regulation winding, control pressure regulation winding and the main winding series system and the number of connecting.Simultaneously; the signal input part of electric current and voltage sample circuit links to each other with generator rated voltage output again; its signal output part links to each other with relay group or high-power switch device group by electric current and voltage protective circuit, power driving circuit; when over current of motor, overpressure situation take place, motor is quit work.
Because the size of the permanent magnetic field of existing permanent magnet generator is uncontrollable, when generator loading or variations in temperature, its output voltage also changes thereupon, and this variation has exceeded the change in voltage scope that the user allowed usually.The present invention, remains in the very little scope generator output voltage and changes under the situation that does not install adjustable electric excitation system additional by composite armature winding and the automatic voltage regulating system supporting with it.Operation principle of the present invention is: when generator during in unloaded and load running, its excitation field produces induced potential in the main winding of composite armature winding and pressure regulation winding, voltage sample circuit in the automatic voltage regulating system is constantly taken a sample to the terminal voltage of the main winding of composite armature winding, and compares with predefined permission voltage max and minimum value.If greater than the maximum that allows voltage, power driving circuit is with trigger relay group or the action of high-power switch device group, with one or more groups pressure regulation winding and main winding differential concatenation, the output voltage that makes generator is that the resultant voltage of main winding and pressure regulation winding remains within the allowed band; If the terminal voltage of main winding is less than the minimum value that allows voltage, power driving circuit is with trigger relay group or the action of high-power switch device group, one or more groups pressure regulation winding is connected with the main winding forward, the output voltage of generator is remained within the allowed band.
Fig. 2, Fig. 3, Fig. 4 are automatic voltage regulating system physical circuit figure of the present invention.As shown in the figure, the signal input part of voltage sample circuit (transformer TF1, D26～27, R7～R9, R36, R47 etc.) links to each other with main winding two ends IN1, the IN2 of composite armature winding; (end of comparator U1A～U1D) links to each other for its signal output part V and voltage comparator circuit, the signal output part of voltage comparator circuit links to each other with relay coil by power driving circuit (U4A, U4B), and the contact of the RLY1 of relay group, RLY2, RLY3, RLY4 links to each other with pressure regulation winding V10, V20.Under the normal condition, be failure to actuate in the contact of relay group, and the pressure regulation winding is not connected with main winding, and the composite armature winding has only main winding work; When the main winding terminal voltage when allowing the maximum of voltage, power driving circuit moves the trigger relay group, the contact action of the RLY1 of relay group or RLY2 or RLY1 and RLY2, with one group or two groups of pressure regulation windings and main winding differential concatenation, the output voltage that makes generator is that the resultant voltage of main winding and pressure regulation winding remains within the allowed band; When the terminal voltage of main winding when allowing the minimum value of voltage, power driving circuit moves the trigger relay group, the contact common actions of the RLY1 of relay group or RLY2 or RLY1 and RLY2 and RLY3 and RLY4, one group or two groups of pressure regulation windings are connected with the main winding forward, thereby the output voltage that makes generator remains within the allowed band, makes the output voltage stabilization of permanent magnet generator, power supply quality good.Simultaneously; electric current and voltage protective circuit of the present invention (transformer TF3, rectifier bridge D29, comparator U3A, U3B etc.) also rated output voltage, the electric current to generator detects in real time; when overvoltage, overcurrent condition occurring; the electric current and voltage protective circuit makes the action of relay group by power driving circuit (U4C); the normally-closed contact action of relay R LY5 quits work generator.
The present invention also can be used for regulating its output voltage in the electric excitation generator, makes generator output voltage more stable, and power supply quality is better.
The present invention adopts the IP23 degree of protection aspect structural design, its overall dimension is little more a lot of than the conventional electric generators with power, has so not only saved the space, and has reduced the weight of complete machine.In addition, the present invention adopts high performance rare-earth permanent magnet, does not need excitation winding and dc excitation power, also just cancel the collector ring and the brushgear that go wrong easily, become brushless electric machine, therefore, the generator efficiency height, power consumption is low, simple in structure, volume is little, the operation more reliable.
More than be narration, be for illustrating goal of the invention of the present invention, and be not intended to limit protection scope of the present invention that any modification or equivalence based on above technical scheme or embodiment changes and all belong within protection scope of the present invention to preferred embodiment of the present invention.
Claims (7)
1, a kind of magneto alternator that has the composite armature winding, it comprises stator, rotor, armature winding, permanent magnet, casing and automatic voltage regulating system, it is characterized in that:
Described armature winding is the composite armature winding when pressure regulation moves, and it is made up of main winding and at least one pressure regulation winding; The pressure regulation winding is with forward identical with the main winding electromotive force or reverse manner and the main winding series connection opposite with the main winding electromotive force; (IN1 IN2) provides fundamental voltage at described main winding two ends; Described each pressure regulation winding is the independently winding beyond the main winding, and the normal running conditions during non-pressure regulation does not have with main winding down and is electrically connected;
The number of phases of described pressure regulation winding is identical with the main winding number of phases;
Described automatic voltage regulating system is the fundamental voltage at the described main winding of monitoring two ends in real time, when it departs from setting, described automatic voltage regulating system is controlled in the described pressure regulation winding one or several with forward or backwards mode and the series connection of described main winding, constitutes the output voltage of generator jointly.
2, the magneto alternator that has the composite armature winding according to claim 1 is characterized in that: the number of turn of described each pressure regulation winding is different with distribution.
3, the magneto alternator that has the composite armature winding according to claim 1 is characterized in that: the number of turn of described each pressure regulation winding is identical with distribution.
4, according to claim 1 or the 2 or 3 described magneto alternators that have the composite armature winding, it is characterized in that: respectively the phase winding axis locus of the phase winding axis locus of described each pressure regulation winding and main winding is basic identical extremely down.
5, the magneto alternator that has the composite armature winding according to claim 4 is characterized in that: described armature winding is positioned on the rotor or on the stator.
6, the magneto alternator that has the composite armature winding according to claim 5 is characterized in that: described automatic voltage regulating system mainly is made of voltage sample circuit, voltage comparator circuit, power driving circuit, electric current and voltage sample circuit and relay group or high-power switch device group etc.; The signal input part of voltage sample circuit links to each other with generator main winding two ends, and its signal output part links to each other with an end of voltage comparator circuit; The signal output part of voltage comparator circuit links to each other with relay group or high-power switch device group by power driving circuit, the output contact of relay group or high-power switch device group links to each other with the pressure regulation winding, constitutes the connecting circuit that the pressure regulation winding is connected and inserted or excise in the mode identical or opposite with the main winding electromotive force.
7, the magneto alternator that has the composite armature winding according to claim 6, it is characterized in that: described automatic voltage regulating system also has the electric current and voltage protective circuit; The signal input part of described electric current and voltage sample circuit and generator output voltage end (OUT1; OUT2) link to each other; the signal output part of electric current and voltage sample circuit links to each other with relay group or high-power switch device group by electric current and voltage protective circuit, power driving circuit, constitutes the protective circuit of cutting off the generator powered circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021214166A CN1295849C (en) | 2002-06-20 | 2002-06-20 | Permanent-magnet synchronous generator having composite armature winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021214166A CN1295849C (en) | 2002-06-20 | 2002-06-20 | Permanent-magnet synchronous generator having composite armature winding |
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| Publication Number | Publication Date |
|---|---|
| CN1464624A CN1464624A (en) | 2003-12-31 |
| CN1295849C true CN1295849C (en) | 2007-01-17 |
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| CNB021214166A Expired - Fee Related CN1295849C (en) | 2002-06-20 | 2002-06-20 | Permanent-magnet synchronous generator having composite armature winding |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567595B (en) * | 2009-05-27 | 2012-05-23 | 泰豪科技股份有限公司 | Composite voltage regulating three-phase permanent magnet electricity generator |
| US9136782B2 (en) * | 2013-07-02 | 2015-09-15 | The Boeing Company | Motor control for stability and power supply protection |
| CN105375729A (en) * | 2015-12-11 | 2016-03-02 | 哈尔滨东安发动机（集团）有限公司 | Multi-margin multi-power channel permanent magnetism generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5093611A (en) * | 1989-07-20 | 1992-03-03 | Honda Giken Kogyo Kabushiki Kaisha | Output circuit for portable generators |
| US5625276A (en) * | 1994-09-14 | 1997-04-29 | Coleman Powermate, Inc. | Controller for permanent magnet generator |
| CN1299176A (en) * | 1999-12-06 | 2001-06-13 | 森山工业株式会社 | Stator of ac generator |
| CN2550956Y (en) * | 2002-06-20 | 2003-05-14 | 夏东 | Improved permanent magnetic synchronous generator |
-
2002
- 2002-06-20 CN CNB021214166A patent/CN1295849C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5093611A (en) * | 1989-07-20 | 1992-03-03 | Honda Giken Kogyo Kabushiki Kaisha | Output circuit for portable generators |
| US5625276A (en) * | 1994-09-14 | 1997-04-29 | Coleman Powermate, Inc. | Controller for permanent magnet generator |
| CN1299176A (en) * | 1999-12-06 | 2001-06-13 | 森山工业株式会社 | Stator of ac generator |
| CN2550956Y (en) * | 2002-06-20 | 2003-05-14 | 夏东 | Improved permanent magnetic synchronous generator |
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| CN1464624A (en) | 2003-12-31 |
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