CN1645722A - Multi-phase rectifier brushless generator with low voltage - Google Patents
Multi-phase rectifier brushless generator with low voltage Download PDFInfo
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- CN1645722A CN1645722A CN 200410061497 CN200410061497A CN1645722A CN 1645722 A CN1645722 A CN 1645722A CN 200410061497 CN200410061497 CN 200410061497 CN 200410061497 A CN200410061497 A CN 200410061497A CN 1645722 A CN1645722 A CN 1645722A
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Abstract
The invention consists of low voltage and multi phases AC main generator, brushless exciter, rotary rectifier, multi phase rectifier and DC voltage regulator. The invention can provide DC power with less voltage ripple. The invention removes the collector and brush.
Description
Technical field
The present invention relates to a kind of rotation DC power supply, especially a kind of low-voltage poly phase rectification brushless generator.
Background technology
Traditional DC generator has commutator and brush, and this kind generator is the commutator structure, produces spark during operation, radio interference is big, the wearing and tearing easily of sliding, maintenance and repair difficulty, exciting current is big, and Excitation Controller is big and complicated, is difficult to realize automation control.Market presses for DC generator and realizes non-brushing, satisfies the power station and realizes intelligent automation control requirement.The another kind of way of obtaining DC power supply is: adopt common alternating current generator, with alternating voltage step-down, rectification then.So just need step-down transformer, and direct voltage ripple value is bigger.
Summary of the invention
The object of the present invention is to provide a kind of low-voltage poly phase rectification brushless generator, can directly provide direct voltage ripple value less DC power supply.
The present invention is achieved like this: comprise polyphase ac main generator, brushless exciter, rotating rectifier, polyphase rectifier, direct current voltage regulator, fan, support, front end housing, rear end cap and bearing.Be furnished with the band winding stator core of main generator in the support, the corresponding band wound rotor iron core that is furnished with stator core on the armature spindle, front end housing is installed before the support, in the rotating shaft fan is installed in the front end housing, rear end cap is installed behind the support, the brushless exciter stator core of mounting strap winding in the rear end cap passes through Bearing Installation between rear end cap and rotating shaft, the brushless exciter rotor core of mounting strap winding in the rotating shaft in the rear end cap.The stator core slot of main generator is embedded with the harmonious wave winding of main winding, and main winding is that six phases or 12 equate, and joins with polyphase rectifier, is connected to direct current voltage regulator between the excitation winding of DC side and exciter.The rotor core of main generator has main excitation winding and damping winding.The brushless exciter stator core is embedded with excitation winding, and the AC exciter rotor core is embedded with AC Windings, and a side of brushless exciter rotor core is installed rotating rectifier.
Its operation principle: after engine driven generators reaches rated speed, the humorous wave winding (W of generator
S) remanent magnetism voltage is through voltage regulator (AVR) rectification, supplies with exciter excitation winding (W
E) reinforcement exciter excitation magnetic field, exciter armature winding (W
J) the induction alternating voltage, through rotating rectifier (XQ) rectification, supply with main field winding (W
F) strengthen main field, stator main winding (W) induction alternating voltage, alternating voltage directly is rectified into direct voltage through rectifier (D), and this voltage constantly raises stable up to rated voltage.Regulation voltage adjuster (AVR) direct voltage of can adjusting.
The invention has the advantages that: low-voltage poly phase rectification brushless generator can directly provide direct voltage ripple value less DC power supply.Generator is realized non-brushing, has cancelled commutator and brush, no-spark High-frequency Interference, commutatorless and carbon brush wearing and tearing; Do not need step-down transformer can directly be rectified into low-voltage dc power supply; Direct voltage ripple value is less, and power supply quality is good; Generator reliability height is safeguarded simply, realizes the intelligent automation control in power station easily.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is six commutating phase brushless generator main winding expanded views of the present invention.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes low-voltage polyphase ac main generator, brushless exciter (7), rotating rectifier (6), polyphase rectifier (D), direct current voltage regulator (AVR), fan (2), support (3), front end housing (1), rear end cap (8) and bearing (9), be furnished with stator (4) iron core of the band winding of main generator in the support, corresponding rotor (5) iron core of arranging the band winding with stator core on the armature spindle, on the preceding seam of support (3) front end housing (1) is installed, in the rotating shaft fan (2) is installed in the front end housing, rear end cap (8) is installed on the seam behind the support, the AC exciter stator core of mounting strap winding in the rear end cap, install by bearing (9) between rear end cap and rotating shaft, the AC exciter rotor core of mounting strap winding in the rotating shaft in the rear end cap, stator core slot is embedded with the harmonious wave winding of main winding (W) (WS), rotor core has main excitation winding (WF) and damping winding, the AC exciter stator core is embedded with excitation winding (WE), the AC exciter rotor core is embedded with AC Windings (WJ), one side of AC exciter rotor core is installed rotating rectifier (XQ), main winding (W) is that six phases or 12 equate, and join with polyphase rectifier (D), be connected to direct current voltage regulator (AVR) between the excitation winding of DC side and exciter.
Sent out AC power by making low-voltage poly phase rectification brushless generator, can directly be rectified into the DC power supply of required voltage value, direct voltage ripple value is again little simultaneously, therefore, this generator output voltage is low, electric current is big, the number of phases is many, its main winding number of turn is few, lead and many around radical, the winding number of phases is many, so that main winding distributes is extremely important.If the generator of one two magnetic pole, three phase windings that distribute under every magnetic pole are divided into cloth six phase windings under two magnetic poles, and every phase winding Sine distribution then forms low-voltage six commutating phase brushless generators.
Polyphase rectifier is made up of a plurality of rectifying tubes or three phase rectifier module.When forming N commutating phase device by a plurality of rectifying tubes, the positive pole of N rectifying tube is connected together as the negative pole of DC power supply, the negative pole of N rectifying tube connects together as the positive pole of DC power supply, an other end of these two groups of rectifying tubes is linked to be N rectification brachium pontis one by one, respectively being connected together of each rectification brachium pontis and generator formed polyphase rectifier.Polyphase rectifier can be installed in the motor, also can be installed in outside the motor.
Claims (3)
1. low-voltage poly phase rectification brushless generator, it comprises the polyphase ac main generator, brushless exciter, rotating rectifier, polyphase rectifier, direct current voltage regulator, fan, support, front end housing, rear end cap and bearing, it is characterized in that being furnished with in the support band winding stator core of main generator, the corresponding band wound rotor iron core that is furnished with stator core on the armature spindle, front end housing is installed before the support, in the rotating shaft fan is installed in the front end housing, rear end cap is installed behind the support, the brushless exciter stator core of mounting strap winding in the rear end cap, pass through Bearing Installation between rear end cap and rotating shaft, the brushless exciter rotor core of mounting strap winding in the rotating shaft in the rear end cap.
2. according to claim 1 described low-voltage poly phase rectification brushless generator, the stator core slot that it is characterized in that low pressure polyphase ac main generator is embedded with two cover windings, one cover is heterogeneous positive chorded winding, the output LOW voltage many phase alternating current, one cover is single-phase humorous wave winding, as the excitation source of exciter, be orthogonal design between the two cover windings, no electromagnetic interference structure.
3. according to claim 1 described low-voltage poly phase rectification brushless generator, it is characterized in that the rotor core groove is embedded with two kinds of windings, a kind of squirrel-cage short-circuited winding of damping cage, this winding is made by red copper, another kind of winding be salient pole directly around excitation winding, its exciting current is supplied with through the rectification of three-phase rotary rectifier module by coaxial brushless exciter armature winding, rotor core is a salient pole, and the axial ventilation groove is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410061497 CN1645722A (en) | 2004-12-29 | 2004-12-29 | Multi-phase rectifier brushless generator with low voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410061497 CN1645722A (en) | 2004-12-29 | 2004-12-29 | Multi-phase rectifier brushless generator with low voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1645722A true CN1645722A (en) | 2005-07-27 |
Family
ID=34868839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410061497 Pending CN1645722A (en) | 2004-12-29 | 2004-12-29 | Multi-phase rectifier brushless generator with low voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1645722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848624B (en) * | 2006-03-31 | 2011-07-20 | 泰豪科技股份有限公司 | Electric generating motor double-purpose brushless synchro-electric machine |
| CN105978376B (en) * | 2016-07-01 | 2018-09-04 | 南方电网科学研究院有限责任公司 | Grid-connected inverter circuit and control method thereof |
-
2004
- 2004-12-29 CN CN 200410061497 patent/CN1645722A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848624B (en) * | 2006-03-31 | 2011-07-20 | 泰豪科技股份有限公司 | Electric generating motor double-purpose brushless synchro-electric machine |
| CN105978376B (en) * | 2016-07-01 | 2018-09-04 | 南方电网科学研究院有限责任公司 | Grid-connected inverter circuit and control method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |