CN207117517U - A kind of alternating current generator excitation unit - Google Patents
A kind of alternating current generator excitation unit Download PDFInfo
- Publication number
- CN207117517U CN207117517U CN201721194324.9U CN201721194324U CN207117517U CN 207117517 U CN207117517 U CN 207117517U CN 201721194324 U CN201721194324 U CN 201721194324U CN 207117517 U CN207117517 U CN 207117517U
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- phase
- interface
- alternating current
- terminal
- current generator
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Abstract
The utility model discloses a kind of alternating current generator excitation unit to include alternating current generator, excitation con-trol module, the switch ways with control pole, the first diode, the second diode, the 3rd diode；Alternating current generator includes phase voltage lead-out terminal and Exciting Windings for Transverse Differential Protection；Excitation con-trol module includes starting voltage interface, phase-voltage measurement interface, control signal output interface, starts voltage interface and is connected to Exciting Windings for Transverse Differential Protection both ends；Phase-voltage measurement interface connects any two-phase of phase voltage lead-out terminal；The through and off of switch ways of the control signal output interface output pulse wave signal control with control pole, so as to control self-excited circuit through and off；First diode, Opposite direction connection is at magnet exciting coil both ends；Phase voltage is by providing self-excitation voltage after the second diode and the 3rd diode rectification.Using alternating current generator excitation unit of the present utility model, simplify circuit, form the closed-loop control of the output phase voltage to alternating current generator, it is not influenceed stable output by load.
Description
Technical field
The utility model belongs to generator excitation technical field, is to be related to a kind of alternating current generator excitation dress specifically
Put.
Background technology
Use the heavy-duty engine of 380V AC powers, because the scope of its movement is relatively wide and irregular, 380V alternating current
Its own configuration of generally use 380V alternating current generator is obtained, and the diesel oil that alternating current generator is configured by heavy-duty engine itself is sent out
Motivation or petrol engine driving, the diesel engine or petrol engine that 380V alternating current generator configures with it pass through
Shaft coupling connects.And the excitation part of alternating current generator is typically by the component group such as reactor, transformer, rectifier, diode
Into its is independent by being mechanically fixed in a control box, and wiring is complicated, and the space of occupancy is larger, due to heavy machine
Shake larger during car operation, so being mechanically fixed easy loosening, the probability of each component damage is larger, so as to cause fault
Rate is higher.The other outer load variations of the heavy-duty engine are larger, cause circuit load to change greatly, make the alternating current generator defeated
It is extremely unstable to go out voltage, it is over-pressed and under-voltage frequent.Fault and voltage instability cause very negative impact to electrical equipment, sternly
The paralysis of heavy-duty engine electric power system can be caused during weight, leads to major accident.
The content of the invention
The utility model provides a kind of alternating current generator excitation unit, by simplifying circuit, reduces space-consuming, stable
Output voltage, avoid the generation of security incident.
In order to solve the above technical problems, the utility model is achieved using following technical scheme：
A kind of alternating current generator excitation unit include alternating current generator, excitation con-trol module, the switch ways with control pole,
First diode, the second diode, the 3rd diode；The alternating current generator mainly includes stator and rotor；The stator master
To include phase voltage lead-out terminal, stator core, envelope curve winding, wherein, the phase voltage lead-out terminal includes U phases, V phases, W phases
And N lines；The rotor main will include rotor core and Exciting Windings for Transverse Differential Protection, wherein, the Exciting Windings for Transverse Differential Protection includes two terminals, is respectively
The first terminal and Second terminal；
The excitation con-trol module includes starting positive polarity interface, starts voltage negative pole interface, the first phase-voltage measurement
Interface, the second phase-voltage measurement interface, control signal output interface；Wherein, the startup positive polarity interface and startup voltage
Negative pole interface, which is used to provide to the alternating current generator, starts exciting current, the startup positive polarity interface connection described first
Terminal, the startup voltage negative pole interface connect the Second terminal；The first phase-voltage measurement interface and the second phase voltage
Detection interface connects any two in the U phases, V phases, W phases of the phase voltage lead-out terminal respectively；The control signal output
Interface exports pulse wave signal, and the pulse wave signal is connect by the excitation con-trol module according to first phase-voltage measurement
The judgement of the magnitude of voltage of mouth and the second phase-voltage measurement interface exports to the control signal output interface；
The switch ways with control pole include control pole and switch ways, and the control pole and the control signal are defeated
Outgoing interface is connected, and the Second terminal is connected by the switch ways with the N lines of the phase voltage lead-out terminal；
First diode, its anode are connected with the Second terminal, and negative electrode is connected with the first terminal；Described
Two diodes, the phase voltage lead-out terminal connection that its anode is connected with the first phase-voltage measurement interface, negative electrode and institute
State the first terminal connection；3rd diode, the phase voltage that its anode is connected with the second phase-voltage measurement interface
Lead-out terminal is connected, and negative electrode is connected with the first terminal.
Further, the excitation con-trol module also includes N line interfaces, and the N lines of itself and the phase voltage lead-out terminal connect
It is logical.
To protect the magnet exciting coil and extending the life-span of the magnet exciting coil, in the switch ways with control pole
One end of the remote Second terminal be connected to form a tie point, the tie point with the N lines of the excitation con-trol module
With being in series with a fuse in the connecting path of the N lines of the phase voltage lead-out terminal.
Preferably, the switch ways with control pole are IGCT, and the gate pole connection control of the IGCT is believed
Number output interface, its anode connect the Second terminal, and its negative electrode connects the N lines of the phase voltage lead-out terminal.
As a kind of specific circuit connection embodiment, the first phase-voltage measurement interface connects the phase voltage output
The V phases of terminal, the second phase-voltage measurement interface connect the U phases of the phase voltage lead-out terminal.
Further, the excitation con-trol module and other each components in addition to the alternating current generator are welded to one
On block circuit board, it is connected by board lead between each other, is simplified component connection installation, is reduced space-consuming and reduction
Mechanically connect.
Compared with prior art, the advantages of the utility model and good effect is：Use alternative electric generation of the present utility model
Machine excitation unit, simplify circuit and its component connection, can not only realize that the institute of former component combination is functional, and reduce
Space-consuming, form the closed-loop control of the output phase voltage to alternating current generator, make the phase voltage do not influenceed by load and
Output is more stable.
Brief description of the drawings
Fig. 1 is a kind of circuit theory diagrams of the embodiment for the alternating current generator excitation unit that the utility model is proposed.
In figure,
1st, excitation con-trol module；2nd, alternating current generator；3rd, the switch ways with control pole；4th, stator；5th, magnet exciting coil；6、
The first terminal；7th, Second terminal.
Embodiment
Specific embodiment of the present utility model is described in more detail below in conjunction with the accompanying drawings.
Reference picture 1, alternating current generator excitation unit of the present utility model include alternating current generator 2, excitation con-trol module 1,
Switch ways 3 with control pole, the first diode D1, the second diode D2, the 3rd diode D3；The alternating current generator 2 is led
To include stator and rotor, the stator mainly includes phase voltage lead-out terminal, stator core, envelope curve winding, wherein, the phase
Output voltage terminals include U phases, V phases, W phases and N lines；The rotor main will include rotor core and Exciting Windings for Transverse Differential Protection 5, wherein, institute
Stating Exciting Windings for Transverse Differential Protection 5 includes two terminals, respectively the first terminal 6 and Second terminal 7.
The excitation con-trol module 1 includes the first phase-voltage measurement interface V, the second phase-voltage measurement interface U, starts voltage
Anode interface F+, start voltage negative pole interface F-, control signal output interface K1；The startup positive polarity interface F+ connections institute
The first terminal 6 is stated, the startup voltage negative pole interface F- connections Second terminal 7, startup is provided to the alternating current generator 2
Exciting current, make the phase voltage lead-out terminal output phase voltage.
U phases, V phases, any two-phase of W phases of the phase voltage lead-out terminal are connecting the second diode D2 just respectively
Pole and the positive pole of the 3rd diode D3, the negative pole of the second diode D2 and negative pole and the institute of the 3rd diode D3
The first terminal connection is stated, the Second terminal connects with the N lines of the phase voltage lead-out terminal, with alternating current generator 2 this described
Any two-phase voltage output port the positive axis of output voltage and the N lines of the phase voltage output port to the excitation wire
Circle provides exciting current, and the phase voltage of the alternating current generator 2 is continued to output by way of self-excitation.
The phase voltage may have a certain distance with the standard voltage value of needs, the U phases of the phase voltage lead-out terminal,
V phases, any two-phase of W phases respectively with the first phase-voltage measurement interface V and the second phase-voltage measurement interface U is corresponding connects
Connect, and the switch ways with control pole of being connected between the N lines of the phase voltage lead-out terminal and the Second terminal, its
Including control pole and switch ways, the switch ways are serially connected in the N lines of the phase voltage lead-out terminal and the Second terminal
Between, control pole connects the control signal output interface K1, and the excitation con-trol module 1 is according to first phase-voltage measurement
The comparison of magnitude of voltage on interface V and the second phase-voltage measurement interface U and the standard value of its own setting is to the control signal
Output interface K1 output control signals are to control the on and off of the switch ways 3, to adjust the electricity at the both ends of magnet exciting coil 5
The virtual value of pressure, and then the virtual value of the electric current by the magnet exciting coil 5 is adjusted, reach the regulation alternating current generator 2
The purpose of the phase voltage value of phase voltage lead-out terminal output.The excitation con-trol module 1, the switch ways 3, second with control pole
Diode D2, the 3rd diode D3 and the alternating current generator 2 form the closed loop to phase voltage control together, described in guarantee
Phase voltage is relatively stable in the range of standard value requirement.
The first terminal 6 is connected D1 connections with the Second terminal 7 by the first reverse diode, with described in protection
The rush of current that magnet exciting coil 5 is subject to when the N lines of the Second terminal 7 and the phase voltage lead-out terminal disconnect, extend institute
State the life-span of magnet exciting coil 5.
To ensure the benchmark of the phase voltage of the phase voltage output interface output of the reception of excitation con-trol module 1 and institute
It is consistent to state the phase voltage benchmark of alternating current generator 2, the excitation con-trol module 1 also includes N line interfaces, and it connects the phase voltage
The N lines of lead-out terminal.
For protection magnet exciting coil 5 and excitation con-trol module 1, remote second end of the switch ways with control pole
One end of son 7 is connected to form a tie point with the N lines of the excitation con-trol module 1, and the tie point and the phase voltage are defeated
Go out in the connecting path of the N lines of terminal and be in series with fuse F.
As a kind of specific embodiment of the switch ways 3 with control pole, the switch ways 3 with control pole
For IGCT SCR, the gate pole of the IGCT SCR connects the control signal output interface K1, its anode connection described second
Terminal 7, its negative electrode connect the N lines of the phase voltage lead-out terminal.
As a kind of specific embodiment of the connected mode of any two-phase of the phase voltage lead-out terminal, described first
The V phases of the phase-voltage measurement interface V connections phase voltage lead-out terminal, the second phase-voltage measurement interface U connections phase
The U phases of output voltage terminals.
To simplify installation procedure, space-consuming is further reduced, reduces fault rate caused by vibrations, the integrated control mould
Block 1 and other each components in addition to the alternating current generator 2 are welded on one piece of circuit board, and it passes through circuit between each other
Plate wire connects.
Certainly, it is to be also not limited to the example above to limitation of the present utility model, the utility model that described above, which is not,
The variations, modifications, additions or substitutions that those skilled in the art are made in essential scope of the present utility model,
Also the scope of protection of the utility model should be belonged to.
Claims (6)
1. a kind of alternating current generator excitation unit, including：
Alternating current generator, it mainly includes stator and rotor；The stator mainly include phase voltage lead-out terminal, stator core and
Envelope curve winding, the phase voltage lead-out terminal include U phases, V phases, W phases and N lines；The rotor main will include rotor core and encourage
Magnetic winding, the Exciting Windings for Transverse Differential Protection include two terminals, respectively the first terminal and Second terminal；
Characterized in that, also include：
Excitation con-trol module, it include starting positive polarity interface, start voltage negative pole interface, the first phase-voltage measurement interface,
Second phase-voltage measurement interface, control signal output interface；Wherein, the startup positive polarity interface and startup voltage negative pole connect
Mouth, which is used to provide to the alternating current generator, starts exciting current, the startup positive polarity interface connection the first terminal,
The startup voltage negative pole interface connects the Second terminal；The first phase-voltage measurement interface and the second phase-voltage measurement connect
Mouth connects any two in the U phases, V phases, W phases of the phase voltage lead-out terminal respectively；The control signal output interface is defeated
Go out pulse wave signal, the pulse wave signal is by the excitation con-trol module according to the first phase-voltage measurement interface and
The judgement of the magnitude of voltage of two-phase voltage detecting interface exports to the control signal output interface；
Switch ways with control pole, it includes control pole and switch ways, and the control pole connects with control signal output
Mouth connection, the Second terminal are connected by the switch ways with the N lines of the phase voltage lead-out terminal；
First diode, its anode are connected with the Second terminal, and negative electrode is connected with the first terminal；
Second diode, the phase voltage lead-out terminal connection that its anode is connected with the first phase-voltage measurement interface are cloudy
Pole is connected with the first terminal；
3rd diode, the phase voltage lead-out terminal connection that its anode is connected with the second phase-voltage measurement interface are cloudy
Pole is connected with the first terminal.
2. alternating current generator excitation unit according to claim 1, it is characterised in that the excitation con-trol module also includes
N line interfaces, it is connected with the N lines of the phase voltage lead-out terminal.
3. alternating current generator excitation unit according to claim 2, it is characterised in that lead in the switch with control pole
One end of the remote Second terminal on road is connected to form a tie point, the connection with the N lines of the excitation con-trol module
Point in the connecting path of the N lines of the phase voltage lead-out terminal with being in series with a fuse.
4. alternating current generator excitation unit according to claim 3, it is characterised in that the switch ways with control pole
For IGCT, the gate pole of the IGCT connects the control signal output interface, and its anode connects the Second terminal, and it is cloudy
Pole connects the N lines of the phase voltage lead-out terminal.
5. alternating current generator excitation unit according to claim 1, it is characterised in that the first phase-voltage measurement interface
The V phases of the phase voltage lead-out terminal are connected, the second phase-voltage measurement interface connects the U of the phase voltage lead-out terminal
Phase.
6. the alternating current generator excitation unit according to any one of claim 1 to 5, it is characterised in that the excitation con-trol
Module and other each components in addition to the alternating current generator are welded on one piece of circuit board, and it passes through circuit between each other
Plate wire connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194324.9U CN207117517U (en) | 2017-09-18 | 2017-09-18 | A kind of alternating current generator excitation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194324.9U CN207117517U (en) | 2017-09-18 | 2017-09-18 | A kind of alternating current generator excitation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207117517U true CN207117517U (en) | 2018-03-16 |
Family
ID=61588329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721194324.9U Expired - Fee Related CN207117517U (en) | 2017-09-18 | 2017-09-18 | A kind of alternating current generator excitation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207117517U (en) |
-
2017
- 2017-09-18 CN CN201721194324.9U patent/CN207117517U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |