CN105429331A - Six-pole hybrid excitation generator - Google Patents
Six-pole hybrid excitation generator Download PDFInfo
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- CN105429331A CN105429331A CN201510668488.XA CN201510668488A CN105429331A CN 105429331 A CN105429331 A CN 105429331A CN 201510668488 A CN201510668488 A CN 201510668488A CN 105429331 A CN105429331 A CN 105429331A
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Abstract
The invention discloses a six-pole hybrid excitation generator. A stator main winding is a double-layer lap winding, the span is 1-12, the turn number of each loop is 2, 2, 2, and 2, 4 loops form a cascade, each phase comprises 6 cascades, and the total number of cascades is 18; a harmonic winding is a single-layer winding, the span is 1-4, the turn number of each loop is 3, 9 loops form a cascade, and the total number of the cascade is 1, the pitch of the harmonic winding is one third of the magnetic pole pitch, and full pitch or short pitch is usually made; a fundamental auxiliary winding is a single-layer winding, the span is 1-12, the turn number of each loop is 2, 1, and 1, 3 loops form a cascade, the total number of the cascade is 1, and the pitches of the fundamental auxiliary winding and the main winding are the same. The beneficial effects of the six-pole hybrid excitation generator are that the fundamental and harmonic excitation mode is employed so that the generator has good excitation-starting ability and high nonlinear load ability, and over-large deviation of excitation voltage of the whole motor is prevented through calculation via stable characteristics of fundamental voltage.
Description
Technical field
The present invention relates to a kind of generator, especially a kind of sextupole complex excitation generator.
Background technology
Generator voltage can be kept during harmonic excited generator load constant.Impact and prominent unload load time, make generator have good dynamic property.Still the favorable comment that trio-time harmonic wave excitation generator is subject to vast manufacturing enterprise and user is in the industry taken charge of.But existing harmonic excitation mode, exists harmonic excitation voltage problem rambunctious, be difficult to by calculating an ideal value, when harmonic voltage is too high, electric moter voltage is too high, even can damage adjuster.Can cannot excitation time too low, or electric moter voltage is too low, does not reach rated value.Therefore often the design of new product need through repetition test, the adjustment harmonic wave number of turn, makes harmonic voltage be in reasonable value, causes efficiency to reduce.
Summary of the invention
The object of the present invention is to provide a kind of sextupole complex excitation generator, this sextupole complex excitation generator is middle-size and small-size single-phase or three-phase brushless synchronous generator, under normal circumstances, middle-size and small-size single-phase or threephase generator excitation mode is pure harmonic excitation or pure first-harmonic excitation.When adopting pure harmonic excitation, in main generator unit stator, embedded in harmonic wave assist winding, the third harmonic voltage of assisting winding to respond to by harmonic wave has carrying load ability after rectification, and the situation of change of the basic reflected load of energy, namely during zero load, third harmonic voltage is very little, full load, third harmonic voltage output amplitude is comparatively large, and its amplitude variation tendency is consistent with load variations trend, and in non-linear.Therefore harmonic excitation advantage is that band non-linear load capacity is strong, but because harmonic voltage is little when shortcoming is zero load, easily cannot excitation, and harmonic voltage is difficult to control, and often needs the repetition test determination harmonic wave number of turn.When adopting pure first-harmonic excitation, fundamental voltage is less with load variations impact, and namely unloaded fully loaded fundamental voltage amplitude change is little, substantially linearly, and easily controlling, substantially there will not be too large deviation by calculating.But its full load voltage is less than harmonic wave, thus its advantage to be excitation ability strong, easy to control, but band non-linear load capacity is weak.
The present invention is achieved like this, a kind of sextupole complex excitation generator, and it comprises stator, rotor, AC exciter, rotating rectifier, piezo-resistance, automatic voltage regulator; It is characterized in that: generator is built-in with stator, rotor, exciter stator, exciter rotor and bearing, be equipped with front end housing, rear end cap and protective cover outward, wire box is contained in generator top; Wherein stator comprises stator main winding, harmonic winding, first-harmonic assist winding, and it is characterized in that: described stator main winding is double-layer overlapped winding, span is 1-12, and often enclosing the number of turn is 2,2,2,2, and 4 circles are 1, and every mutually 6, totally 18; Described harmonic winding is single layer winding, and span is 1-4, often encloses the number of turn 3 circle, often joins 9 circles, totally 1, and the pitch of harmonic winding is 1/3rd of magnetic pole pole span, generally makes whole distance or makes short distance; Described first-harmonic assists winding to be single layer winding, span 1-12, often encloses the number of turn 2,1,1, and often join 3 circles, totally 1, first-harmonic assists winding pitch identical with main winding.
Technique effect of the present invention is: this sextupole complex excitation generator adopts first-harmonic to add harmonic excitation mode.Thus make generator can have good excitation ability, powerful band non-linear load capacity can be had again.And by the characteristic that fundamental voltage is stable, make the exciting voltage of whole motor there will not be too large deviation by calculating.Generator can have good excitation ability, can have again powerful band non-linear load capacity, improves new-product development efficiency.
Accompanying drawing explanation
Fig. 1 is generator electrical schematic diagram of the present invention.
Fig. 2 is stator main winding expanded view of the present invention.
Fig. 3 is stator harmonic winding expanded view of the present invention.
Fig. 4 is that first-harmonic of the present invention assists developed winding diagram.
It is unloaded to full-load excitation voltage change curve figure that Fig. 5 is first-harmonic, harmonic wave, first-harmonic add harmonic wave three kinds of excitation modes.
Embodiment
Generator of the present invention is work so as shown in Figure 1: generator is by prime mover driven, after startup of unit, the voltage that first-harmonic and harmonic winding rely on remanent magnetism to produce, exciting current is provided to the magnetic field of AC exciter after rectification, AC exciter armature voltage raises gradually, this alternating voltage sends into main frame magnetic field after the rectification of rotary rectifier module, main generator is made to set up voltage, when rotating speed is close to rated value, automatic voltage regulator makes generator voltage rise rapidly, and terminal voltage is stabilized in rated value.
Generator is in normal course of operation, if because of certain reason, such as: load variations, rotation speed change, each winding temperature change etc., generator voltage have raise or reduce trend time, automatic voltage regulator can detect this small voltage deviation, and promptly reduce or increase exciting current, the terminal voltage maintaining generator is similar to constant.
As shown in Figure 2,3, 4, generator of the present invention is such distributed winding: example is SB-HW4-1600-6P-WG3.20-BJ generator, and main winding adopts single double-layer overlapped winding, span is 1-12, and often enclosing the number of turn is 2,2,2,2, and 4 circles are 1, every phase 6, totally 18.Harmonic winding is single layer winding, and span is 1-4, often encloses the number of turn 3 circle, often joins 9 circles, totally 1.First-harmonic assists winding to be single layer winding, span 1-12, often encloses the number of turn 2,1,1, often joins 3 circles, totally 1.
As shown in Figure 5, when adopting pure harmonic excitation, time unloaded, third harmonic voltage is very little, full load, and third harmonic voltage output amplitude is comparatively large, and its amplitude variation tendency is consistent with load variations trend, and in non-linear.But because harmonic voltage is little when shortcoming is zero load, easily cannot excitation.When adopting pure first-harmonic excitation, fundamental voltage is less with load variations impact, and namely unloaded fully loaded fundamental voltage amplitude change is little, and substantially linearly, but its full load voltage is less than harmonic wave, therefore its band non-linear load capacity is weak.When adopting first-harmonic to add harmonic excitation, generator off-load excitation voltage is greater than pure harmonic excitation, therefore its excitation ability is better than pure harmonic excitation.And full load, its exciting voltage is greater than pure first-harmonic excitation, therefore its band non-linear load capacity is better than pure first-harmonic excitation.
As shown in table 1, for first-harmonic, harmonic wave, first-harmonic add harmonic wave three kinds of excitation mode excitation con-trol and compare, first-harmonic adds harmonic wave relative to pure first-harmonic, and pure harmonic wave has performance good, manageable advantage.
Table 1
Claims (1)
1. a sextupole complex excitation generator, it comprises stator, rotor, AC exciter, rotating rectifier, piezo-resistance, automatic voltage regulator; It is characterized in that: generator is built-in with stator, rotor, exciter stator, exciter rotor and bearing, be equipped with front end housing, rear end cap and protective cover outward, wire box is contained in generator top; Wherein stator comprises stator main winding, harmonic winding, first-harmonic assist winding, and it is characterized in that: described stator main winding is double-layer overlapped winding, span is 1-12, and often enclosing the number of turn is 2,2,2,2, and 4 circles are 1, and every mutually 6, totally 18; Described harmonic winding is single layer winding, and span is 1-4, often encloses the number of turn 3 circle, often joins 9 circles, totally 1, and the pitch of harmonic winding is 1/3rd of magnetic pole pole span, generally makes whole distance or makes short distance; Described first-harmonic assists winding to be single layer winding, span 1-12, often encloses the number of turn 2,1,1, and often join 3 circles, totally 1, first-harmonic assists winding pitch identical with main winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510668488.XA CN105429331A (en) | 2015-10-13 | 2015-10-13 | Six-pole hybrid excitation generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510668488.XA CN105429331A (en) | 2015-10-13 | 2015-10-13 | Six-pole hybrid excitation generator |
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| CN105429331A true CN105429331A (en) | 2016-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922576A (en) * | 2021-09-29 | 2022-01-11 | 康富科技有限公司 | Shaft generator capable of controlling voltage according to frequency |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580420A (en) * | 2013-10-17 | 2014-02-12 | 南昌康富电机技术有限公司 | High-power track welding efficient excitation single-phase generator |
| CN103684161A (en) * | 2013-12-27 | 2014-03-26 | 南昌康富电机技术有限公司 | High-efficiency excitation generator automatic voltage regulator |
| CN103701265A (en) * | 2013-12-27 | 2014-04-02 | 南昌康富电机技术有限公司 | Double-voltage-regulator power generator |
| CN205092681U (en) * | 2015-10-13 | 2016-03-16 | 南昌康富科技股份有限公司 | Compound excitation generator of hexapole |
-
2015
- 2015-10-13 CN CN201510668488.XA patent/CN105429331A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580420A (en) * | 2013-10-17 | 2014-02-12 | 南昌康富电机技术有限公司 | High-power track welding efficient excitation single-phase generator |
| CN103684161A (en) * | 2013-12-27 | 2014-03-26 | 南昌康富电机技术有限公司 | High-efficiency excitation generator automatic voltage regulator |
| CN103701265A (en) * | 2013-12-27 | 2014-04-02 | 南昌康富电机技术有限公司 | Double-voltage-regulator power generator |
| CN205092681U (en) * | 2015-10-13 | 2016-03-16 | 南昌康富科技股份有限公司 | Compound excitation generator of hexapole |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922576A (en) * | 2021-09-29 | 2022-01-11 | 康富科技有限公司 | Shaft generator capable of controlling voltage according to frequency |
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Application publication date: 20160323 |
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