CN2550956Y - Improved permanent magnetic synchronous generator - Google Patents
Improved permanent magnetic synchronous generator Download PDFInfo
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- CN2550956Y CN2550956Y CN02237978U CN02237978U CN2550956Y CN 2550956 Y CN2550956 Y CN 2550956Y CN 02237978 U CN02237978 U CN 02237978U CN 02237978 U CN02237978 U CN 02237978U CN 2550956 Y CN2550956 Y CN 2550956Y
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Abstract
The utility model discloses a modified permanent and synchronous magneto, comprising a magneto and an automatic voltage regulation system, which is characterized in that: the magneto mainly comprises a stator, a rotor, an armature winding, a permanent magnet and a casing; the stator armature winding or the rotor armature winding is composite armature winding, which is composed of a main winding and a group of voltage regulation winding or groups of voltage regulation windings; the main winding is the same as the armature winding of the traditional magneto, which can be single-phase winding or multi-phase winding; the phase of the voltage regulation winding is the same as that of the main winding; the automatic voltage regulation system real-time monitors the terminal voltage of the main winding, and the series connection way and numbers of the terminal voltage regulation winding and the main winding are controlled by the terminal voltage of the main winding. The utility model has the advantages of stable output voltage, good power supply quality, high efficiency of the motor, obvious energy-saving effect and simple structure.
Description
Technical field
The utility model relates to a kind of magneto alternator, refers 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.
Summary of the invention
In order to address the above problem, the purpose of this utility model has provided that a kind of power supply quality is good, output voltage stabilization, efficient height, energy-saving effect modified model magneto alternator remarkable, simple in structure.
For achieving the above object, the utility model is taked following design: a kind of modified model magneto alternator, and it is made of generator and automatic voltage regulating system; Described generator mainly is made up of stator, rotor, armature winding, permanent magnet, casing; Described armature winding is the composite armature winding, and it is made of main winding and one group or array pressure regulation winding; Described main winding is identical with the armature winding of conventional electric generators, can be single-phase or polyphase windings; 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 terminal voltage of the described main winding of monitoring in real time, controls described pressure regulation winding and the series system of described main winding and the number of connecting according to the terminal voltage of main winding.
Described composite armature winding is positioned at and is composite rotors armature winding on the rotor.
Described composite armature winding is positioned at and is compound stator armature winding 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, 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 the main winding two ends of generator composite armature winding, 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, and the output contact of relay group or high-power switch device group links to each other with the pressure regulation winding; The signal input part of electric current and voltage sample circuit links to each other with generator rated voltage output, and 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.
Because the utility model 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 utility model is compared with traditional electric excitation generator, has more following advantage: 1, electric efficiency height, energy-saving effect is remarkable.Because the utility model 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, the utility model energy-saving effect 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 utility model adopts automatic voltage regulating system control, regulator generator output voltage, so the generator dynamic stability is good.5, because the utility model 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 utility model has been eliminated slot ripples substantially, and noise is little, and electromagnetic interference is minimum.The utility model 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 the utility model composite armature winding and automatic voltage regulating system theory diagram
Fig. 2, Fig. 3, Fig. 4 are the utility model composite armature winding and automatic voltage regulating system physical circuit figure
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, the utility model modified model magneto alternator 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 utility model 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 utility model, 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 utility model 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 the utility model automatic voltage regulating system physical circuit figure.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; the utility model electric current and voltage protective circuit (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 utility model 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 utility model 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 utility model 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.
It more than is narration to the utility model preferred embodiment; be for illustrating utility model purpose of the present utility model; and being not intended to limit protection range of the present utility model, any modification or equivalence variation based on above technical scheme or embodiment all belongs within the protection range of the present utility model.
Claims (4)
1, a kind of modified model magneto alternator, it is characterized in that: it is made of generator and automatic voltage regulating system;
Described generator mainly is made up of stator, rotor, armature winding, permanent magnet, casing;
Described armature winding is the composite armature winding, and it is made of main winding and one group or array pressure regulation winding; Described main winding is identical with the armature winding of conventional electric generators, can be single-phase or polyphase windings; 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 terminal voltage of the described main winding of monitoring in real time, controls described pressure regulation winding and the series system of described main winding and the number of connecting according to the terminal voltage of main winding.
2, modified model magneto alternator according to claim 1 is characterized in that: described composite armature winding is positioned at and is composite rotors armature winding on the rotor.
3, modified model magneto alternator according to claim 1 is characterized in that: described composite armature winding is positioned at and is compound stator armature winding on the stator.
4, according to claim 2 or 3 described modified model magneto alternators, it 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, 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 the main winding two ends of generator composite armature winding, 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, and the output contact of relay group or high-power switch device group links to each other with the pressure regulation winding; The signal input part of electric current and voltage sample circuit links to each other with generator rated voltage output, and 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02237978U CN2550956Y (en) | 2002-06-20 | 2002-06-20 | Improved permanent magnetic synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02237978U CN2550956Y (en) | 2002-06-20 | 2002-06-20 | Improved permanent magnetic synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2550956Y true CN2550956Y (en) | 2003-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02237978U Expired - Fee Related CN2550956Y (en) | 2002-06-20 | 2002-06-20 | Improved permanent magnetic synchronous generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295849C (en) * | 2002-06-20 | 2007-01-17 | 夏东 | Permanent-magnet synchronous generator having composite armature winding |
| CN100385778C (en) * | 2003-12-11 | 2008-04-30 | 泰豪科技股份有限公司 | Mictomagnetism dual voltage medium frequency brushless synchronous generator |
| CN112821473A (en) * | 2021-03-08 | 2021-05-18 | 广州华南鑫沨能源科技有限公司 | Reactive power adjusting system and method suitable for permanent magnet synchronous generator |
-
2002
- 2002-06-20 CN CN02237978U patent/CN2550956Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295849C (en) * | 2002-06-20 | 2007-01-17 | 夏东 | Permanent-magnet synchronous generator having composite armature winding |
| CN100385778C (en) * | 2003-12-11 | 2008-04-30 | 泰豪科技股份有限公司 | Mictomagnetism dual voltage medium frequency brushless synchronous generator |
| CN112821473A (en) * | 2021-03-08 | 2021-05-18 | 广州华南鑫沨能源科技有限公司 | Reactive power adjusting system and method suitable for permanent magnet synchronous generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |