CN109510536A - Generator speed-raising signal digital switching device - Google Patents
Generator speed-raising signal digital switching device Download PDFInfo
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- CN109510536A CN109510536A CN201811504127.1A CN201811504127A CN109510536A CN 109510536 A CN109510536 A CN 109510536A CN 201811504127 A CN201811504127 A CN 201811504127A CN 109510536 A CN109510536 A CN 109510536A
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- Prior art keywords
- speed
- port
- raising
- relay
- switching device
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- 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
- H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of generator speed-raising signal digital switching devices, including power supply, instrument single control line access interface and motor inlet port, motor inlet port is including speed-raising port and exits speed-raising port, and the circuit of generator speed-raising signal digital switching device includes: PLC controller, the input terminal of PLC controller is connected with instrument single control line access interface, PLC controller includes the first output port and second output terminal mouth, and the first output port and second output terminal mouth are able to carry out and drag down control；First relay and the second relay, are connected with the first output port and second output terminal mouth respectively；The control contact of the control contact and the second relay of first relay, the first relay control contact and are connected with speed-raising port, and the second relay controls contact and is connected with speed-raising port is exited；And manual switch, input terminal are connected with the control contact of the second relay, the output end of manual switch is connected with the control contact of the first relay.
Description
Technical field
The present invention relates to technical field of generators, especially with regard to a kind of generator speed-raising signal digital switching device.
Background technique
Generating set is generally made of engine, generator and instrument three parts.The operating status of engine is by instrument
Table is by output order after the judgement to conditions present (signal), for example idling warming-up is first carried out after engine start, works as water temperature
When reaching setting value, instrument is raised to instruction (hereinafter " speed-raising " instruction, from volume of rated speed to one, engine from idling
Determine revolving speed return to idling then claim " exiting speed-raising " instruct), engine according to the signal of instrument execute speed-raising instruct and enter generate electricity
Preparation state.However, frequently encountering two during mating since engine and instrument are provided by different production firms respectively
Control mode and signal type between part be inconsistent, output and the unmatched problem of demand, such as engine it is desirable that arteries and veins
Rush signal and instrument can provide low and high level signal, for another example, volume speed needs to separate two with the volume speed of exiting on some engines
The input of a port, and instrument only one signal output port etc. problems.It needs to increase many costs and manpower goes to change
The signal of instrument.
The height electricity that the control instrument of mainstream signal of volume speed on control engine essentially singly exports currently on the market
Ordinary mail number is exported when the conditions are met and a high level and is kept, when needing to exit (such as shutdown) if become low level,
Control logic is as shown in Figure 1.
Following speed-raising demand signals type can be divided into according to system difference in engine electric-controlled system currently on the market:
1. single input: high level (speed-raising)；Low level (exits speed-raising)
Control logic: only one input of Engine ECU speed-raising control signal is single input control, when input control port
Engine is thought to have obtained speed-raising instruction when obtaining high level, moves back when engine detects that port level switchs to low level by height
Speed-raising instruction out, this is the most common control mode.Fig. 2 is single input low and high level control logic figure.
2. single input: pulse (speed-raising)；Pulse (exits speed-raising)
Control logic: when the control signal mouth that raises speed detects the rising edge of a pulse, it is dynamic to execute speed-raising for engine
Make, and exits speed-raising instruction when engine receives a rising edge of a pulse again.Fig. 3 is single input: single input pulse mentions
Speed, pulse exit speed-raising control logic figure.
3. dual input (speed-raising port+exit port)
A) raise speed: then engine raises speed speed-raising Port detecting a to pulse signal
B) it exits speed-raising: exiting Port detecting to a pulse signal and exit speed-raising instruction
Control logic: this mode Engine ECU is respectively speed-raising input port and exits there are two command port is received
Port, when engine speed-raising input port detects the rising edge of a pulse, engine executes speed-raising movement, and works as and start
Speed-raising is exited in exiting when port receives a rising edge of a pulse for machine.Fig. 4 is dual input (speed-raising port+exit port) control
Logic chart.
Therefore, it is unable to satisfy engine substantially by the single signal type (such as Fig. 1) that existing market main flow instrument designs
Demand for control is in this case general to solve by the following method:
(1) joint instrucment and meter plant, engine producer are unified by signal type together.The advantages of this scheme is can be change
Cost turns to sow to instrucment and meter plant and engine works, and special to develop, control is stablized.The disadvantages of this solution be instrucment and meter plant specification with start
The specification of machine factory may be different, for example, for instrucment and meter plant may 80% client be the 1st kind of mode.In addition, instrument
Port number is limited, and module or specific aim exploitation are needed replacing if expanding.And due to application for engine producer
Plate emphasis is different (it is smaller with accounting for that it is mainly directed towards vehicle device plate, power generation), their 90% clients are the 2nd kind of moulds
Formula, so both sides will not go to change the original state of oneself easily for the small client of sales volume.
(2) competent unit producer is by increasing hardware conversion original signal.For example, increasing time-delay relay and key etc.
This kind of repacking mode.The advantages of this scheme is not need to modify by instrucment and meter plant and engine works, is able to achieve control function substantially
Energy.The disadvantages of this solution be it is at high cost, unstable, repacking person needs stronger technical ability, change user's use habit, and
Maintenance difficult in the future is caused due to changing the original control circuit of instrument.
Therefore, common instrument can be controlled signal type and carry out number conversion packing by the present invention, be able to achieve and do not changed
Become in the case of both sides signal (use habit), allows both sides to obtain " needing " and the unification of " asking " signal, to reach stability contorting
Purpose.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of generator speed-raising signal digital switching devices, and it is convenient to operate, control
System is stablized, and can satisfy the Control Cooling of various engines speed-raising signal.
To achieve the above object, the present invention provides a kind of generator speed-raising signal digital switching device, which is mentioned
Fast signal digital switching device includes power supply, instrument single control line access interface and motor inlet port, the access of instrument single control line
Port is connected by instrument output line with instrument, and motor inlet port includes speed-raising port and exits speed-raising port, and
The circuit of generator speed-raising signal digital switching device includes: PLC controller, the input terminal and instrument single control line of PLC controller
Access interface is connected, and PLC controller includes the first output port and second output terminal mouth, and the first output port and second export
Port, which is able to carry out, drags down control；First relay and the second relay, respectively with the first output port and second output terminal
Mouthful be connected so that the output of the first output port and second output terminal mouth respectively by the first relay and the second relay into
Line level conversion；The control contact of the control contact and the second relay of first relay, the first relay control contact and mention
Fast port is connected, and the second relay controls contact and is connected with speed-raising port is exited；And manual switch, manual switch it is defeated
Enter end to be connected with the control contact of the second relay, the output end of manual switch is connected with the control contact of the first relay
It connects.
In a preferred embodiment, the circuit of generator speed-raising signal digital switching device further include: diode, two
The input terminal of pole pipe is connected with the output end of manual switch, and the output end of diode is connected with the control contact of the first relay
It connects, and the first relay includes first coil, the second relay includes the second coil.
In a preferred embodiment, speed-raising port access engine speed-raising input port, exits speed-raising port sending and receiving
Motivation exits speed-raising port.
In a preferred embodiment, it is closed when generator speed-raising signal digital switching device is arranged to manual switch
It closes, when engine only connects speed-raising port single input control, when instrument single control line access interface receives the high level from instrument
When rising edge, the first output port drags down a period, and first coil is powered, and the control contact of the first relay connects one
Period, and the pulse signal of a period pulsewidth is generated in speed-raising port.
In a preferred embodiment, when instrument single control line access interface detects that instrument signal is lower electricity by high level
When flat failing edge, second output terminal mouth drags down a period, and the second coil is powered, and the control contact of the second relay is connected
One period, the pulse that high level is generated a period pulsewidth by manual switch by diode on speed-raising port are believed
Number.
In a preferred embodiment, a period is more than or equal to 2 seconds.
In a preferred embodiment, it is beaten when generator speed-raising signal digital switching device is arranged to manual switch
Open, speed-raising port sending and receiving motivation raise speed input port, exit speed-raising port sending and receiving motivation exit speed-raising port when, when instrument single control
When line access interface receives the high level rising edge from instrument, the first output port drags down a period, first coil
It is powered, the control contact of the first relay is connected a period, and generates the pulse of a period pulsewidth in speed-raising port
Signal, to trigger engine speed-raising.
In a preferred embodiment, when instrument single control line access interface detects that instrument signal is lower electricity by high level
When flat failing edge, second output terminal mouth drags down a period, and the second coil is powered, and the control contact of the second relay is connected
One period generates the pulse signal of a period pulsewidth on exiting speed-raising port, exits speed-raising to trigger engine.
In a preferred embodiment, a period is more than or equal to 2 seconds.
Compared with prior art, generator speed-raising signal digital switching device according to the present invention has the advantages that this
Invention applies signal differentiation means, is absorbed traditional low and high level control signal respectively in variation moment using differential program
Its rising edge and failing edge generate a corresponding pulse by delay procedure as initial point to reach demand for control, so that this
Common instrument can be controlled signal type and carry out number conversion packing, Neng Goushi by the speed-raising signal digital switching device of invention
Do not change now and both sides is allowed in the case of both sides signal (use habit) to obtain " needing " and the unification of " asking " signal, to reach stable
The purpose of control.The manufacturing cost of generator speed-raising signal digital switching device of the invention is low, and stability is good, and compact is light
Just, facilitate mounting arrangements, user only need to connect corresponding input-output line can, it is convenient to use, can meet all at present
Engine raise speed signal Control Cooling.And due to using individually conversion packet, former instrument and engine are had no need to change
Circuit, on repairing no influence in the future.
Detailed description of the invention
Fig. 1 is general instrument signal and engine condition control logic figure.
Fig. 2 is single input low and high level control logic figure.
Fig. 3 is single input pulse (speed-raising) pulse (exiting speed-raising) control logic figure.
Fig. 4 is dual input (speed-raising port+exit port) control logic figure.
Fig. 5 is the circuit diagram of speed-raising signal digital switching device according to an embodiment of the present invention.
Fig. 6 is the signal conversion process schematic diagram of speed-raising signal digital switching device according to an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 5 to Figure 6, generator speed-raising signal digital switching device according to the preferred embodiment of the present invention includes
Power supply, instrument single control line access interface P0And motor inlet port, instrument single control line access interface P0By instrument output line with
Instrument 510 is connected, and motor inlet port includes speed-raising port P1With exit speed-raising port P2, and generator speed-raising signal
The circuit of digital switching device includes: PLC controller 501, the first relay 502, the second relay 503, the first relay
Control contact 504, the control contact 505 of the second relay and manual switch 506.Wherein, the input terminal of PLC controller 501
X0With instrument single control line access interface P0It is connected, PLC controller 501 includes the first output port Y1With second output terminal mouth Y2,
First output port Y1With second output terminal mouth Y2Logic as needed, which is able to carry out, drags down control.First relay 502 and
Two relays 503 respectively with the first output port Y1With second output terminal mouth Y2It is connected, so that the first output port Y1With
Two output port Y2Output level conversion is carried out by the first relay 502 and the second relay 503 respectively.First relay control
Contact 504 processed and speed-raising port P1It is connected, the second relay controls contact 505 and exits speed-raising port P2It is connected.It opens manually
The input terminal of pass 506 is connected with the control contact 505 of the second relay, the output end of manual switch 506 and the first relay
Control contact 504 be connected.
In above scheme, the circuit of generator speed-raising signal digital switching device further include: diode 507, diode 507
Input terminal be connected with the output end of manual switch 506, the control contact of the output end of diode 507 and the first relay
504 are connected, and the first relay 502 includes first coil K1, the second relay 503 includes the second coil K2。
In a preferred embodiment, raise speed port P1Engine speed-raising input port 511 is accessed, speed-raising port is exited
P2Sending and receiving motivation exits speed-raising port 512.
In a preferred embodiment, when generator speed-raising signal digital switching device is arranged to manual switch 506
Closure, engine only meet speed-raising port P1When single input controls, as instrument single control line access interface P0It receives from instrument 510
High level rising edge when, the first output port Y1A period is dragged down (for example, a period can be for more than or equal to 2
Second), first coil K1It is powered, the control contact 504 of the first relay is connected a period, and in speed-raising port P1Generate one
The pulse signal of a period pulsewidth.
In a preferred embodiment, as instrument single control line access interface P0Detect that instrument signal is lower by high level
When the failing edge of level, second output terminal mouth Y2Drag down a period, the second coil K2It is powered, the control touching of the second relay
Point 505 is connected a period, and high level is by manual switch 506 by diode 507 in speed-raising port P1At upper generation one
Between section pulsewidth pulse signal.
In a preferred embodiment, when generator speed-raising signal digital switching device is arranged to manual switch 506
It opens, raise speed port P1Sending and receiving motivation speed-raising input port 511, exits speed-raising port P2Sending and receiving motivation exits speed-raising port 512
When, as instrument single control line access interface P0When receiving the high level rising edge from instrument 510, the first output port Y1It drags down
One period, first coil K1It is powered, the control contact 504 of the first relay is connected a period, and in speed-raising port P1
The pulse signal of a period pulsewidth is generated, to trigger engine speed-raising.
In a preferred embodiment, as instrument single control line access interface P0Detect 510 signal of instrument by high level
When becoming low level failing edge, second output terminal mouth Y2Drag down a period, the second coil K2It is powered, the control of the second relay
A period is connected in contact 505 processed, is exiting speed-raising port P2The upper pulse signal for generating a period pulsewidth, with triggering
Engine exits speed-raising.
In a preferred embodiment, a period is more than or equal to 2 seconds.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (9)
- The signal digital switching device 1. a kind of generator raises speed, generator speed-raising signal digital switching device includes power supply, instrument List control line access interface and motor inlet port, the instrument single control line access interface pass through instrument output line and instrument phase Connection, which is characterized in that the motor inlet port includes speed-raising port and exits speed-raising port, and the generator mentions The circuit of fast signal digital switching device includes:PLC controller, the input terminal of the PLC controller are connected with the instrument single control line access interface, the PLC control Device includes the first output port and second output terminal mouth, and first output port and second output terminal mouth are able to carry out and drag down control System；First relay and the second relay are connected with first output port and second output terminal mouth respectively, so that First output port and second output terminal mouth output respectively by first relay and second relay into Line level conversion；The control contact of the control contact and the second relay of first relay, the first relay control contact are mentioned with described Fast port is connected, and the second relay control contact is connected with the speed-raising port of exiting；AndManual switch, the input terminal of the manual switch is connected with the control contact of second relay, described to open manually The output end of pass is connected with the control contact of first relay.
- The signal digital switching device 2. generator as described in claim 1 raises speed, which is characterized in that the generator speed-raising letter The circuit of number digital switching device further include: diode, the output end phase of the input terminal of the diode and the manual switch Connection, the output end of the diode is connected with the control contact of first relay, and first relay includes First coil, second relay include the second coil.
- The signal digital switching device 3. generator as described in claim 1 raises speed, which is characterized in that the speed-raising port access Engine speed-raising input port, the speed-raising port sending and receiving motivation that exits exit speed-raising port.
- The signal digital switching device 4. generator as claimed in claim 2 raises speed, which is characterized in that when the generator raises speed Signal digital switching device is arranged to the manual switch closure and works as institute when engine only connects speed-raising port single input control When stating instrument single control line access interface and receiving the high level rising edge from the instrument, first output port drags down one A period, the first coil are powered, and a period is connected in the control contact of first relay, and in the speed-raising Port generates the pulse signal of a period pulsewidth.
- The signal digital switching device 5. generator as claimed in claim 4 raises speed, which is characterized in that when the instrument single control line When access interface detects that instrument signal becomes low level failing edge by high level, the second output terminal mouth drags down a time Section, second coil are powered, and one period is connected in the control contact of second relay, and high level is by the hand Dynamic switch generates the pulse signal of one period pulsewidth by the diode on the speed-raising port.
- The signal digital switching device 6. generator as claimed in claim 5 raises speed, which is characterized in that one period is More than or equal to 2 seconds.
- The signal digital switching device 7. generator as claimed in claim 2 raises speed, which is characterized in that when the generator raises speed Signal digital switching device is arranged to the manual switch and opens, the speed-raising port sending and receiving motivation speed-raising input port, institute State exit speed-raising port sending and receiving motivation exit speed-raising port when, when the instrument single control line access interface is received from the instrument When the high level rising edge of table, first output port drags down a period, and the first coil is powered, described first after The control contact of electric appliance is connected a period, and generates the pulse signal of a period pulsewidth in the speed-raising port, with Trigger engine speed-raising.
- The signal digital switching device 8. generator as claimed in claim 7 raises speed, which is characterized in that when the instrument single control line When access interface detects that instrument signal becomes low level failing edge by high level, the second output terminal mouth drags down a time Section, second coil are powered, and one period is connected in the control contact of second relay, exit speed-raising described The pulse signal of one period pulsewidth is generated on port, exits speed-raising to trigger engine.
- The signal digital switching device 9. generator as claimed in claim 8 raises speed, which is characterized in that one period is More than or equal to 2 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504127.1A CN109510536B (en) | 2018-12-10 | 2018-12-10 | Digital conversion device for speed-increasing signal of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504127.1A CN109510536B (en) | 2018-12-10 | 2018-12-10 | Digital conversion device for speed-increasing signal of generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109510536A true CN109510536A (en) | 2019-03-22 |
| CN109510536B CN109510536B (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811504127.1A Active CN109510536B (en) | 2018-12-10 | 2018-12-10 | Digital conversion device for speed-increasing signal of generator |
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| CN208127892U (en) * | 2018-02-27 | 2018-11-20 | 徐利鑫 | Rotational speed difference generating set |
| CN208955936U (en) * | 2018-12-10 | 2019-06-07 | 广西玉柴机器股份有限公司 | Generator speed-raising signal digital switching device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08232828A (en) * | 1995-02-24 | 1996-09-10 | Toshiba Eng Co Ltd | Governor control device for pelton wheel |
| US20090278351A1 (en) * | 2006-03-17 | 2009-11-12 | Ingeteam S.A. | High voltage direct current link transmission system for variable speed wind turbine |
| CN101932829A (en) * | 2008-02-01 | 2010-12-29 | Isis创新有限公司 | Electricity generator |
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| CN208955936U (en) * | 2018-12-10 | 2019-06-07 | 广西玉柴机器股份有限公司 | Generator speed-raising signal digital switching device |
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| CN109510536B (en) | 2023-08-22 |
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