CN214674963U - Three-phase synchronous generator with brushless double compound excitation - Google Patents
Three-phase synchronous generator with brushless double compound excitation Download PDFInfo
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- CN214674963U CN214674963U CN202121039732.3U CN202121039732U CN214674963U CN 214674963 U CN214674963 U CN 214674963U CN 202121039732 U CN202121039732 U CN 202121039732U CN 214674963 U CN214674963 U CN 214674963U
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Abstract
The utility model provides a three-phase synchronous generator with brushless double compound excitation, which comprises an AVR automatic voltage regulator, a compound excitation winding and a double compound excitation regulator, wherein the compound excitation winding is connected with one end of a three-phase rectifier bridge, the other end of the three-phase rectifier bridge is connected with one end of a stator main winding and the double compound excitation regulator, and the double compound excitation regulator is connected with a stator double compound excitation auxiliary winding; one end of the AVR automatic voltage regulator is connected with an exciter stator winding, and the other end of the AVR automatic voltage regulator is connected with the other end of the stator main winding; the utility model discloses simple structure, the simple operation can promote power factor load capacity.
Description
Technical Field
The utility model relates to a generator technical field, especially a take brushless double compound three-phase synchronous generator who stimulates.
Background
The three-phase alternating current synchronous generator is generally used for temporary power supply of outdoor electric appliances, and the existing generator can basically meet daily use requirements, but still has some defects to be improved.
The common brushless three-phase alternating current synchronous motor in the prior art depends on AVR to sample from the output end of a generator and adjust an exciter stator so as to stabilize output voltage, and under inductive load with 0.8 power factor, the loading capacity of the generator is not ideal, so that the requirement can not be met in many inductive load occasions.
Disclosure of Invention
In view of this, the utility model provides a three-phase synchronous generator who takes brushless dual compound excitation that can promote power factor load capacity.
The utility model discloses a following method realizes: the utility model provides a take brushless double compound three-phase synchronous generator, includes AVR automatic voltage regulator, its characterized in that: the double-compound excitation device is characterized by further comprising a compound excitation winding and a double-compound excitation regulator, wherein the compound excitation winding is connected with one end of a three-phase rectifier bridge, the other end of the three-phase rectifier bridge is connected with one end of a stator main winding and the double-compound excitation regulator, and the double-compound excitation regulator is connected with a stator double-compound excitation auxiliary winding; one end of the AVR automatic voltage regulator is connected with an exciter stator winding, and the other end of the AVR automatic voltage regulator is connected with the other end of the stator main winding.
Further, the magnetic field generator further comprises an exciter armature winding, wherein the exciter armature winding is connected with a rotary rectifier bridge, and a rotor winding is connected to the rotary rectifier bridge.
Furthermore, the ends U1, V1 and W1 of the stator main winding are connected with the double compound excitation regulator, the end W3 of the stator main winding is connected with the AVR automatic voltage regulator in series and then connected with the end W of the live wire, the end V3 of the stator main winding is connected with the AVR automatic voltage regulator in series and then connected with the end V of the live wire, and the end U3 of the stator main winding is connected with the end U of the live wire; the AVR automatic voltage regulator and the U1, V1 and W1 ends of the stator main winding are connected with a zero line N.
The beneficial effects of the utility model reside in that: the utility model discloses an added the effect of two compound regulators and compound winding for compare with same power level three-phase AC synchronous generator, can promote 0.8 power factor load capacity 1.1 times, possess better overload capacity simultaneously, the operation temperature rise is lower, life is longer.
Drawings
Fig. 1 is a schematic diagram of the circuit principle of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, the present invention provides an embodiment: a three-phase synchronous generator with brushless double compound excitation comprises an AVR automatic voltage regulator 1, a compound excitation winding 2 and a double compound excitation regulator 3, wherein the compound excitation winding 2 is connected with one end of a three-phase rectifier bridge 4, the other end of the three-phase rectifier bridge 4 is connected with one end of a stator main winding 5 and the double compound excitation regulator 3, and the double compound excitation regulator 3 is connected with a stator double compound excitation auxiliary winding 6; one end of the AVR automatic voltage regulator 1 is connected with an exciter stator winding 7, and the other end of the AVR automatic voltage regulator 1 is connected with the other end of the stator main winding 5. By the action of the double compound excitation regulator 3, the exciting current can be increased along with the increase of the load of the output end in the working process, particularly when the inductive load with 0.8 power factor is adopted.
Referring to fig. 1, in an embodiment of the present invention, the present invention further includes an exciter armature winding 8, the exciter armature winding 8 is connected to a rotating rectifier bridge 9, and the rotating rectifier bridge 9 is connected to a rotor winding 10.
As shown in fig. 1, in an embodiment of the present invention, the U1, V1, and W1 ends of the stator main winding 5 are all connected to the dual compound regulator 3, the W3 end of the stator main winding 5 is connected to the W end of the live wire after being connected in series with the AVR automatic voltage regulator 1, the V3 end of the stator main winding 5 is connected to the V end of the live wire after being connected in series with the AVR automatic voltage regulator 1, and the U3 end of the stator main winding 5 is connected to the U end of the live wire; the AVR automatic voltage regulator 1 and the U1, V1 and W1 ends of the stator main winding 5 are all connected with a zero line N.
The AVR automatic voltage regulator and the dual compound regulator of the present invention are both the prior art, and those skilled in the art can clearly understand that the detailed description is omitted, and the model of the AVR automatic voltage regulator may be voltage regulator board SF one 550, and the model of the dual compound regulator may be HTL one 550, H280, stator outer diameter 464 inner diameter 310; h315, stator outer diameter 544 inner diameter 370.8; h355, stator outer diameter 600 inner diameter 400; h400, stator outer diameter 707 inner diameter 469.8, but is not limited thereto.
The utility model discloses a theory of operation: the double compound excitation winding for exciting the exciter winding is additionally arranged, the current of the double compound excitation winding is obtained by the double compound excitation regulator through induction of the instant change of the load current, the load current is instantly and correspondingly increased or decreased, the excitation magnetism of the double compound excitation winding to the exciter winding is also instantly and correspondingly increased or decreased, the sudden increase capacity of the synchronous generator for starting the asynchronous motor is greatly improved, the capacity of suddenly unloading a large load is greatly improved, the transient performance stability of the output voltage of the synchronous generator is improved, the problem that the output voltage of the synchronous generator is instantly and greatly changed during sudden load addition and sudden unloading is solved, and the transient performance of the output voltage of the synchronous generator is improved.
In a word, the utility model discloses an effect of two compound excitation regulators can be in the course of the work, when especially taking 0.8 power factor inductive load, can improve exciting current along with the increase of output load, stabilizes the voltage and the electric current of generator output, and load capacity is strong.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (3)
1. The utility model provides a take brushless double compound three-phase synchronous generator, includes AVR automatic voltage regulator, its characterized in that: the double-compound excitation device is characterized by further comprising a compound excitation winding and a double-compound excitation regulator, wherein the compound excitation winding is connected with one end of a three-phase rectifier bridge, the other end of the three-phase rectifier bridge is connected with one end of a stator main winding and the double-compound excitation regulator, and the double-compound excitation regulator is connected with a stator double-compound excitation auxiliary winding; one end of the AVR automatic voltage regulator is connected with an exciter stator winding, and the other end of the AVR automatic voltage regulator is connected with the other end of the stator main winding.
2. The three-phase synchronous generator with brushless dual compound excitation of claim 1, wherein: the rotor winding type permanent magnet synchronous motor further comprises an exciter armature winding, wherein the exciter armature winding is connected with a rotary rectifier bridge, and a rotor winding is connected to the rotary rectifier bridge.
3. The three-phase synchronous generator with brushless dual compound excitation of claim 1, wherein: the U1, V1 and W1 ends of the stator main winding are connected with the double-compound regulator, the W3 end of the stator main winding is connected with the AVR automatic voltage regulator in series and then connected with the live wire W end, the V3 end of the stator main winding is connected with the AVR automatic voltage regulator in series and then connected with the live wire V end, and the U3 end of the stator main winding is connected with the live wire U end; the AVR automatic voltage regulator and the U1, V1 and W1 ends of the stator main winding are connected with a zero line N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121039732.3U CN214674963U (en) | 2021-05-14 | 2021-05-14 | Three-phase synchronous generator with brushless double compound excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121039732.3U CN214674963U (en) | 2021-05-14 | 2021-05-14 | Three-phase synchronous generator with brushless double compound excitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214674963U true CN214674963U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121039732.3U Active CN214674963U (en) | 2021-05-14 | 2021-05-14 | Three-phase synchronous generator with brushless double compound excitation |
Country Status (1)
| Country | Link |
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| CN (1) | CN214674963U (en) |
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2021
- 2021-05-14 CN CN202121039732.3U patent/CN214674963U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220722 Address after: 355099 No. 3, Jinbai Road, Tiehu Industrial Zone, Fu'an City, Ningde City, Fujian Province Patentee after: Intertek (Fujian) Motor Co.,Ltd. Address before: 510091 No. a3002 of room 2621, No. 316, Huanshi Middle Road, Yuexiu District, Guangzhou City, Guangdong Province (cluster registration) Patentee before: Guangzhou Hongtai Generator Co.,Ltd. |
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| TR01 | Transfer of patent right |