CN109039183A - Generator excitation unit - Google Patents
Generator excitation unit Download PDFInfo
- Publication number
- CN109039183A CN109039183A CN201810939142.2A CN201810939142A CN109039183A CN 109039183 A CN109039183 A CN 109039183A CN 201810939142 A CN201810939142 A CN 201810939142A CN 109039183 A CN109039183 A CN 109039183A
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- phase
- coil
- rectification bridge
- phase rectification
- power supply
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- 230000005284 excitation Effects 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000005611 electricity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The present invention relates to electrical generator fields, and in particular to a kind of generator excitation unit.The generator excitation unit includes field power supply and three-phase rectification bridge；The first input end of the three-phase rectification bridge and the first output end of field power supply connect, and the second input terminal of three-phase rectification bridge and the second output terminal of field power supply connect, and the third input terminal of three-phase rectification bridge and the third output end of field power supply connect；Bifilar winding is connected between the positive output end and reversed-phase output of the three-phase rectification bridge.
Description
Technical field
The present invention relates to electrical generator fields, and in particular to a kind of generator excitation unit.
Background technique
In the following very long-term, industry restructuring and technology upgrading will be one of main lines that Chinese national economy develops,
The product restructuring of every profession and trade, the improvement of production technology, the technological transformation of facilities, automation and enlarged complete set of equipments
Exploitation use etc. and to require mechanical equipment industry advanced, modernization production equipment is provided, improve the modernization of national economy
Level, while the proposition of national economy sustainable development strategy is come into operation energy-saving, environment-friendly type production equipment as investment
Emphasis, also need mechanical equipment industry provide it is safer, progress production equipment.High-effect and high stability is also hair
One of motor technology developments, therefore constantly develop high-effect, high stability generator has become the main of future market
Trend could take the good opportunity in the following fierce market competition in this way, obtain bigger breakthrough.
Generator principle is that AC rectification is issued by excitation electromotor into the generator amature of direct current supply rotation, is made
It obtains electricity generator stator coil induction and generates voltage, to issue power supply.Diode plays rectified action in rectification circuit.In order to
Protection diode, people often give diodes in parallel or resistors in series.Resistor is general in daily life to be directly known as electricity
Resistance.It is a current limiting element, after resistance is connect in circuit, the resistance value of resistor is fixed usually two pins, it can
Limitation passes through the size of current on its institute's chord road.
Currently, although wire resistor resistance accuracy existing for generator excitation unit is high, due to the magnetic effect of electric current, originally
Body besides electrical resistance, also possesses micro inductance or capacitor, makes its performance and ideal resistor difference.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of generator excitation unit, the generator
The technical solution that excitation unit provides according to the present invention,
The technical solution provided according to the present invention, a kind of generator excitation unit, the generator excitation unit include excitation electricity
Source and three-phase rectification bridge；The first input end of the three-phase rectification bridge and the first output end of field power supply connect, three phase rectifier
The second output terminal of second input terminal of bridge and field power supply connects, and the of the third input terminal of three-phase rectification bridge and field power supply
The connection of three output ends；Bifilar winding is connected between the positive output end and reversed-phase output of the three-phase rectification bridge.
Further, the three-phase rectification bridge has multiple, and the positive output end of multiple three-phase rectification bridges is connected, reverse phase
Output end is connected.
Further, the bifilar winding includes first coil and the second coil, the first end of the first coil
It is connected with the first end of the second coil, the second end of first coil connects the positive output end of the three-phase rectification bridge, the second line
The second end of circle connects the reversed-phase output of each three-phase rectification bridge.
Further, including further including iron core, the first coil and the second coil twine the bifilar winding side by side
It is wound on iron core.
From the above as can be seen that generator excitation unit provided by the invention, has following compared with prior art
Advantage: structure is simple, compact, reasonable, provides a kind of mounting structure of bifilar winding as resistance, uses bifilar winding
Instead of original varistor, rectifier diodes can be protected and when synchronous motor asynchronous starting as pure
Resistance plays the role of start-up resistor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inventive embodiments one.
Fig. 2 is the structural schematic diagram of bifilar winding of the present invention.
1. field power supply, 2. three-phase rectification bridges, 3. first input ends, 4. second input terminals, 5. third input terminals, 6. positives
Output end, 7. reversed-phase outputs, 8. bifilar windings, 810. first coils, 820. second coils, 9. iron cores.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.Wherein identical components are presented with like reference characters.It needs to illustrate
It is that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to the direction in attached drawing.It uses
Word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
As shown in Fig. 1 ~ Fig. 2, the embodiment of the present invention one: a kind of generator excitation unit includes:
Field power supply 1 and three-phase rectification bridge 2；First output of the first input end 3 and field power supply 1 of the three-phase rectification bridge 2
End connection, the second input terminal 4 of three-phase rectification bridge 2 are connect with the second output terminal of field power supply 1, the third of three-phase rectification bridge 2
Input terminal 5 is connect with the third output end of field power supply 1；The positive output end 6 and reversed-phase output 7 of the three-phase rectification bridge 2
Between be connected with bifilar winding 8.The bifilar winding 8 includes first coil 810 and the second coil 820, and described the
The first end of one coil 810 is connected with the first end of the second coil 820, and it is whole that the second end of first coil 810 connects the three-phase
The positive output end 6 of bridge 2 is flowed, the second end of the second coil 820 connects the reversed-phase output 7 of each three-phase rectification bridge 2.
The bifilar winding 8 is including further including iron core 9,820 wound side by side of the first coil 810 and the second coil
On iron core 9.It can be understood that the invention has the advantages of simple structure, compactness and reasonable structure, a kind of bifilar winding is provided as resistance
Mounting structure can protect rectifier diodes and synchronize electricity with bifilar winding instead of original varistor
Play the role of start-up resistor as pure resistance when machine asynchronous starting.
The embodiment of the present invention two: a kind of generator excitation unit includes:
Field power supply 1 and multiple three-phase rectification bridges 2, first input end 3 and the field power supply 1 of each three-phase rectification bridge 2
The connection of first output end, the second input terminal 4 of three-phase rectification bridge 2 are connect with the second output terminal of field power supply 1, three-phase rectification bridge
2 third input terminal 5 is connect with the third output end of field power supply 1；
Bifilar winding 8 is connected between the positive output end 6 and reversed-phase output 7 of each three-phase rectification bridge 2；It is multiple
The positive output end 6 of the three-phase rectification bridge 2 is connected, and the reversed-phase output 7 of multiple three-phase rectification bridges 2 is connected.
The bifilar winding 8 includes iron core 9, first coil 810 and the second coil 820,810 He of first coil
Second coil, 820 wound side by side is on iron core 9, and the first end of the first end of the first coil 810 and the second coil 820
It is connected, the second end of the first coil 810 connects the positive output end 6 of the three-phase rectification bridge 2, second coil 820
Second end connect the reversed-phase output 7 of each three-phase rectification bridge 2；In bifilar winding 8, electric current is from first coil
810 second end flows into, followed by the first end of first coil 810 and the first end of the second coil 820, finally from the and line
The second end of circle flows out.In bifilar winding 8, due to first coil 810 and second coil of the wound side by side on iron core 9
820 current direction avoids coil and generates inductance, open so that synchronous motor is asynchronous on the contrary, the magnetic effect of electric current is cancelled out each other
When dynamic, bifilar winding 8 plays the role of start-up resistor as pure resistance.Cause voltage positive and negative anodes anti-extremely in motor operation
When turning, bifilar winding 8 can protect it from shorted diode to be inverted voltage breakdown.
It should be understood by those ordinary skilled in the art that: the above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all any modification, equivalent substitution, improvement and etc. within purport of the invention, done should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of generator excitation unit, which is characterized in that the generator excitation unit includes that field power supply (1) and three-phase are whole
It flows bridge (2)；The first input end (3) of the three-phase rectification bridge (2) is connect with the first output end of field power supply (1), and three-phase is whole
The second input terminal (4) of stream bridge (2) is connect with the second output terminal of field power supply (1), the third input terminal of three-phase rectification bridge (2)
(5) it is connect with the third output end of field power supply (1)；The positive output end (6) and reversed-phase output of the three-phase rectification bridge (2)
(7) bifilar winding (8) are connected between.
2. generator excitation unit as described in claim 1, which is characterized in that the three-phase rectification bridge (2) have it is multiple, it is multiple
The positive output end (6) of the three-phase rectification bridge (2) is connected, and reversed-phase output (7) is connected.
3. generator excitation unit as described in claim 1, which is characterized in that the bifilar winding (8) includes first
Coil (810) and the second coil (820), the first end and the first end phase of the second coil (820) of the first coil (810)
Even, the second end of first coil (810) connects the positive output end (6) of the three-phase rectification bridge (2), the second coil (820)
Second end connects the reversed-phase output (7) of each three-phase rectification bridge (2).
4. generator excitation unit as claimed in claim 3, which is characterized in that the bifilar winding (8) includes also wrapping
It includes iron core (9), the first coil (810) and the second coil (820) wound side by side are on iron core (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939142.2A CN109039183A (en) | 2018-08-17 | 2018-08-17 | Generator excitation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939142.2A CN109039183A (en) | 2018-08-17 | 2018-08-17 | Generator excitation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109039183A true CN109039183A (en) | 2018-12-18 |
Family
ID=64630781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810939142.2A Pending CN109039183A (en) | 2018-08-17 | 2018-08-17 | Generator excitation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109039183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115189605A (en) * | 2022-07-12 | 2022-10-14 | 哈尔滨电机厂有限责任公司 | Controllable start type twelve-pulse-wave rectification short-circuit impulse generator excitation system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082914U (en) * | 1991-02-02 | 1991-08-14 | 易传志 | Rectification device for excitation of brushless generator |
| CN201210664Y (en) * | 2008-05-23 | 2009-03-18 | 武汉洪山电工科技有限公司 | Intelligent physical current equalizing controller with excitation dual rectifying bridge |
| CN101667801A (en) * | 2009-09-28 | 2010-03-10 | 武汉武大电力科技有限公司 | Excitation system of generator |
| CN201733287U (en) * | 2010-07-13 | 2011-02-02 | 西南交通大学 | Quick on-off electromagnetic control superconducting switch |
| CN201839251U (en) * | 2010-10-15 | 2011-05-18 | 福建一华电机有限公司 | Electric control circuit structure of TFKX-H series controllable marine phase compound excitation generator |
| CN208656672U (en) * | 2018-08-17 | 2019-03-26 | 无锡道尔奇拜恩电机有限公司 | Generator excitation unit |
-
2018
- 2018-08-17 CN CN201810939142.2A patent/CN109039183A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082914U (en) * | 1991-02-02 | 1991-08-14 | 易传志 | Rectification device for excitation of brushless generator |
| CN201210664Y (en) * | 2008-05-23 | 2009-03-18 | 武汉洪山电工科技有限公司 | Intelligent physical current equalizing controller with excitation dual rectifying bridge |
| CN101667801A (en) * | 2009-09-28 | 2010-03-10 | 武汉武大电力科技有限公司 | Excitation system of generator |
| CN201733287U (en) * | 2010-07-13 | 2011-02-02 | 西南交通大学 | Quick on-off electromagnetic control superconducting switch |
| CN201839251U (en) * | 2010-10-15 | 2011-05-18 | 福建一华电机有限公司 | Electric control circuit structure of TFKX-H series controllable marine phase compound excitation generator |
| CN208656672U (en) * | 2018-08-17 | 2019-03-26 | 无锡道尔奇拜恩电机有限公司 | Generator excitation unit |
Non-Patent Citations (1)
| Title |
|---|
| 秦显才: "《实用电工技术浅析》", 中国建筑工业出版社, pages: 42 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115189605A (en) * | 2022-07-12 | 2022-10-14 | 哈尔滨电机厂有限责任公司 | Controllable start type twelve-pulse-wave rectification short-circuit impulse generator excitation system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |