CN106611998A - Energy-saving power switching device - Google Patents
Energy-saving power switching device Download PDFInfo
- Publication number
- CN106611998A CN106611998A CN201510705953.2A CN201510705953A CN106611998A CN 106611998 A CN106611998 A CN 106611998A CN 201510705953 A CN201510705953 A CN 201510705953A CN 106611998 A CN106611998 A CN 106611998A
- Authority
- CN
- China
- Prior art keywords
- circuit
- input
- switching
- photoelectric isolating
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses an energy-saving power switching device which comprises an analog input circuit, a transformer isolation circuit, a zero-crossing comparison circuit, a 32-bit central processing unit, a switching signal input circuit, a photoelectric isolation circuit, a PLD logic device circuit, an action breaker circuit, a print and output circuit, a liquid crystal display, a keyboard input circuit, and a communication management circuit. The technology of real-time monitoring, judging and reliable processing of the 'interference electricity' of the system or real failure or voltage loss based on adaptive switch position and electrical parameter variation is one of the leading domestic technologies at present, and achieves the international requirements.
Description
Technical field
The present invention relates to energy-saving power switching arrangement, and in particular to a kind of energy-saving power switching arrangement.
Background technology
Enterprise is used mostly and has power switchover device referred to as " prepared auto restart " (BZT) at present.Work as work
When on and off switch non-protected trips, Backup Power Switch needs automatic closing；Automatic switching device of standby power supply,
Used as the automaton for completing this function, which is for the safe operation of power system is in the production of enterprise
Huge effect has been played, one of maximally effective automaton of can yet be regarded as at present, but backup auto-activating device is dynamic
Make that the time is more long, be not suitable with the requirement that enterprise is improved to power safety and automatizationMainly
Reason has five, and one is that device judges to start too late；Two be device start after by in-put of spare power supply when
Between it is oversize；Three is phase place when can not accurately judge switch on opportunity；Four is that switching mode is single, is selected
Property is poor；Five is excessive to the impact of whole electrical network when being switching, serious accident easily occurs, causes
System is shaken, and causes system large-area power-cuts.Trace to its source, mainly the network of Industrial-Enterprises in China
What construction featuress were determined, industrial undertaking's backup auto-activating device that always drop and mesolow transformer station use at present
The backup auto-activating device operation principle of electricity grid substation is absolutely applied mechanically almost, not for industry enterprise
The demand and technical characterstic of industry carries out principle, function, the expertness design of performance and exploitation but this
Two diverse systems.
Further, since the present situation of China's power system, universal large and medium-sized enterprise faces often system and " shakes
The puzzlement of electricity ", first and second system " shake electricity " cause when serious the large-area power failure of full factory or
Operation equipment is paralysed.Economic loss is difficult to estimate that these problems annoying the Producer of enterprise and management
Person, also the function innovation to backup auto-activating device propose urgent requirement, and urgent need wants a kind of brand-new dress
Put to replace standby energy-saving power switching arrangement.
The content of the invention
The present invention is directed to the problems referred to above, there is provided a kind of energy-saving power switching arrangement.
The present invention the adopted technical scheme that solves the above problems is:A kind of power supply switching dress
Put, process including analog input circuit, transformer isolation circuit, Zero-cross comparator circuit, 32 central authorities
Device, on-off model input circuit, photoelectric isolating circuit, PLD logic device circuits, action breaker
Circuit, print output circuit, liquid crystal display, input through keyboard circuit and telecommunication management circuit；Described 32
Position central processing unit connects Zero-cross comparator circuit, photoelectric isolating circuit, print output circuit, liquid respectively
Brilliant display, input through keyboard circuit and telecommunication management circuit；The analog input circuit outfan connection is mutual
Sensor isolation circuit；The transformer isolation circuit outfan connects Zero-cross comparator circuit；The switch
Amount signal input circuit outfan connection photoelectric isolating circuit；The photoelectric isolating circuit outfan decibel
32 central processing units of connection and PLD logic device circuits；The PLD logic device circuits outfan
Connecting moves breaker circuit；The action short-circuiting device circuit input/output terminal connects host computer.
Advantages of the present invention：
Device judges to start switching time soon, reaches 10ms；
Device will be the time of in-put of spare power supply fast after judging to start, within reaching 50ms；Except excessively breaking
Device failure cause；
True detecting system phase place, accurately judges phase place during switch on opportunity；Utility power grid ensure
Close a floodgate within 30 °；
Switching mode flexibly, is actually needed according to scene, and menu is various available, security reliability
It is high；
It is little to the impact of whole electrical network during switching, be not in serious accident, anti-locking system concussion,
System large-area power-cuts and " shaking electricity " is definitely avoided to affect；
The normal grid switching operation of artificial system is capable of achieving on device, tradition is fallen before being completely eliminated or avoiding
The potential safety hazard that lock mode is brought, it is ensured that safe operation of electric network；
Existing automatic switching device of standby power supply or apparatus for fast switching are substituted completely, and wiring is simple, installation side
Just；
Realize that safety automation switches, reach unattended, intelligent operation；
Multiple communication modes are changed with stipulations, can intervene rapidly the Internet, implement remote monitoring.
In addition to objects, features and advantages described above, also other purposes of the invention,
Feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, the present invention
Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.
Fig. 1 is the structured flowchart of the embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing
And embodiment, the present invention will be described in further detail.It should be appreciated that described herein concrete
Embodiment only to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, a kind of energy-saving power switching arrangement as shown in Figure 1, including analog input circuit,
Transformer isolation circuit, Zero-cross comparator circuit, 32 central processing units, on-off model input circuit,
Photoelectric isolating circuit, PLD logic device circuits, action breaker circuit, print output circuit, liquid crystal
Display, input through keyboard circuit and telecommunication management circuit；32 central processing units connect zero passage respectively
Comparison circuit, photoelectric isolating circuit, print output circuit, liquid crystal display, input through keyboard circuit and logical
Fuse tube manages circuit；The analog input circuit outfan connects transformer isolation circuit；The transformer
Isolation circuit outfan connects Zero-cross comparator circuit；The on-off model input circuit outfan connection
Photoelectric isolating circuit；The photoelectric isolating circuit outfan decibel connects 32 central processing units and PLD
Logic device circuit；The PLD logic device circuits outfan connecting moves breaker circuit；It is described
Action short-circuiting device circuit input/output terminal connects host computer.
The device Starting mode and logic of the present invention：
1. line voltage distribution is started, device fact detection voltage variable quantity, when circuit three-phase voltage occur it is different
Often or power supply, i.e. detection voltage are lost less than line voltage distribution setting valve and line current is less than excessively stream locking
Value, starts blood pressure lowering logic.
2. low-frequency starting, device fact detection voltage and frequency variation, when circuit three-phase voltage occurs
Exception also occurs declining with power supply, simultaneity factor frequency is lost, i.e., detection voltage is less than line electricity repoussage
Definite value and frequency are less than system frequency setting valve and line current is less than excessively stream locking value, start blood pressure lowering and
Frequency logic.
3. inverse probability is started, and when industrial system bus carries generator operation, electromotor is now born
This bus major part load, user receive active from system.But when system loses power supply, electromotor
Power transmission will be fallen to system, to prevent the system failure, device will start inverse probability.
4. the position of the switch starts, and when systems are functioning properly, closes bit switch because of working power and occurs suddenly
During displacement, it is to ensure power supply reliability, device needs Backup Power Switch of closing, now the position of the switch
Start.
5. trip protection is started, and the protection device on circuit is in this line of processing system external area error tripping
Road working power, device play dynamic circuit connector stand-by power supply.
The device action mode of the present invention：
Device, can be according to the logical order being previously set to working power and standby electricity after correct startup
Source switch carries out action, to ensure that system is safe and reliable.
1. switching in parallel
First close Backup Power Switch, after confirming that Backup Power Switch is closed, then divide the work and make on and off switch.
In this course of action, system can short time cyclization.Parallel way is applied to normal condition similarly hereinafter display system
Two power supplys between switching, can be used for inlet wire overhaul when artificial back brake or failure after recover manually.
Parallel way is also divided into automated manner in parallel and semiautomatic fashion in parallel.Automated manner in parallel refers to device
After combined floodgate, through time delay of adjusting, automatic tripping working power switch.Semiautomatic fashion in parallel is referred to
Device is switched by manual tripping working power after combined floodgate.
Under specific to system list mother partition system wiring, as a example by being switched to 2DL from 1DL parallel connections, this
When 3DL close position.After manual starting, if condition in parallel meets, device first closes 2DL switches, this
When working power, two power supply cyclizations in short-term of stand-by power supply, Jing adjusts time delay (shunt tripping time delay)
Device tripping 1DL again afterwards.
2. series connection switching
On and off switch is made in the first division of labor, after confirming that working power separates, then closes Backup Power Switch.Series connection
Mode is applied to the automatic switchover of power supply in the case of accident and switch mis-jumping.
Under specific to system list mother partition system wiring, as a example by being switched to 2DL from 1DL parallel connections, this
When 3DL close position.After manual starting, if condition in parallel meets, device elder generation tripping 1DL switches, so
The 2DL that closes again afterwards is switched, and now working power, two power supplys of stand-by power supply do not have cyclization situation.
3. switch simultaneously
Device is sent out simultaneously and jumps working power switch and close Backup Power Switch order, is suitable for normal with system
The use of falling load.With parallel connection switch logic.
The device implementation of the present invention：
Device implementation depends on accurate judgement and set-up mode of the device to system parameters, tool
Body includes mode is implemented as described below：
1. quick-action switching
Quick-action switches to this device most advantage, is also that switching uses one of success rate highest switching mode,
More than 80% is commonly reached, that is, be can guarantee that system safety, and it is larger not use the equipment such as electricity not to be subject to
Impact and disturbance.
Wherein Rule of judgment：First：Line voltage distribution cannot be below system voltage 80% and more than；The
Two：Bus is with voltage | dz | to be thrown " switching pressure reduction " within 20%；3rd：Bus and voltage to be thrown
| dq | " switching angular difference " must be within 30 °.
Quick-action switching is entirely to switch the most fast combined floodgate mode of combined floodgate mode, wherein it is dynamic to complete whole switch
Make the time in 100ms or so, it is ensured that the action message of stand-by power supply, it is ensured that the recovery of system electricity consumption.
2. same period tracking switching
If device loses quick-action switching machine meeting, device can proceed to rapidly same period tracking switching, to realize
The best opportunity for restoring electricity, busbar voltage and treat that the asynchronous switch-on point between switching voltage is most important,
Its opportunity for closing a floodgate point of its criterion device tracking attaches most importance to, around when switching the intrinsic combined floodgate being previously set
Between be reference, select one " expected leading phase angle " as long as this " expected leading phase angle " is in device
In the permission phase angle of setting, it is possible to which conjunction stand-by power supply order is sent out in the position for finding same period point, now right
Electrical network impact is minimum, also will not be affected using electric load.
3. overbottom pressure switching
System voltage progressively reduces with handoff failure number of times, drops to about 30% in busbar voltage left
The right side, now switch into overbottom pressure switching, but due to power off time it is long, not as this device first
Switching mode.But can use in some particular systems, now switching does not have strict criterion, to system
Also affect little.
4. safety delay switching
The safety delay switching of system, is for the supplement of overbottom pressure switching, now with stand-by power supply certainly
A large amount of replacements of device are thrown, this kind of switching mode is also used, so this device is related to less.
The present invention provides a kind of full new firms power supply switching mode-power supply stable-switching device, leads to
Cross and transformer station's (switchgear house) unmanned can be realized using the device, due to the short circuit, " rolling of external power grid
Electricity ", air-drop etc. cause instantaneous or normal time service power outage, device automatic checkout system voltage, electricity
The fact that stream, frequency, power variable quantity, the voltage of whole electricity system be unlikely to lose situation
Under, safely and fast put into stand-by power supply or bus connection switch so that system reenters normal operating condition,
So that whole electric power netting safe running.The development of Modern vacuum chopper, the time divide, closed a floodgate most soon may be used
To reach 30-50ms, this realizes providing possibility, the safety of power system for stable-switching device of powering
And reliability, it is desirable to peopleware and power supply unit automatization improve constantly, and depend merely on artificial operation difficult
To be competent at, digital transformer substation has goed deep into enterprise, by from motion tracking, detection, judgement, execution
Power supply stable-switching device coordinate other automatically-monitored softwares, really realize that transformer station (matches somebody with somebody
Electric room) digitized, intellectuality, it is ensured that the safety and reliability of electrical network.
Device judges to start switching time soon, reaches 10ms；
Device will be the time of in-put of spare power supply fast after judging to start, within reaching 50ms；Except excessively breaking
Device failure cause；
True detecting system phase place, accurately judges phase place during switch on opportunity；Utility power grid ensure
Close a floodgate within 30 °；
Switching mode flexibly, is actually needed according to scene, and menu is various available, security reliability
It is high；
It is little to the impact of whole electrical network during switching, be not in serious accident, anti-locking system concussion,
System large-area power-cuts and " shaking electricity " is definitely avoided to affect；
The normal grid switching operation of artificial system is capable of achieving on device, tradition is fallen before being completely eliminated or avoiding
The potential safety hazard that lock mode is brought, it is ensured that safe operation of electric network；
Existing automatic switching device of standby power supply or apparatus for fast switching are substituted completely, and wiring is simple, installation side
Just；
Realize that safety automation switches, reach unattended, intelligent operation；
Multiple communication modes are changed with stipulations, can intervene rapidly the Internet, implement remote monitoring.
The self-adaptive switch position of the present invention and the variable quantity of electric parameter, for from system
" the shaking electricity " of itself and real failure or decompression real-time monitoring, judgement reliable treatments, are current
One of domestically leading technology, and reach international requirement.
Presently preferred embodiments of the present invention is the foregoing is only, it is not to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in
Within protection scope of the present invention.
Claims (1)
1. a kind of energy-saving power switching arrangement, it is characterised in that including simulation input electricity
Road, mutual inductance
Device isolation circuit, Zero-cross comparator circuit, 32 central processing units, on-off model input electricity
Road, photoelectric isolating circuit, PLD logic device circuits, action breaker circuit, printout
Circuit, liquid crystal display, input through keyboard circuit and telecommunication management circuit；32 centres
Reason device connects Zero-cross comparator circuit, photoelectric isolating circuit, print output circuit, liquid crystal respectively
Show, input through keyboard circuit and telecommunication management circuit；The analog input circuit outfan connection is mutual
Sensor isolation circuit；The transformer isolation circuit outfan connects Zero-cross comparator circuit；It is described
On-off model input circuit outfan connects photoelectric isolating circuit；The photoelectric isolating circuit is defeated
Go out to hold decibel to connect 32 central processing units and PLD logic device circuits；The PLD logics
Device circuitry outfan connecting moves breaker circuit；The action short-circuiting device circuit input/defeated
Go out end connection host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705953.2A CN106611998A (en) | 2015-10-27 | 2015-10-27 | Energy-saving power switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705953.2A CN106611998A (en) | 2015-10-27 | 2015-10-27 | Energy-saving power switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106611998A true CN106611998A (en) | 2017-05-03 |
Family
ID=58613989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510705953.2A Pending CN106611998A (en) | 2015-10-27 | 2015-10-27 | Energy-saving power switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106611998A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204068418U (en) * | 2014-08-26 | 2014-12-31 | 西安博惠通用电气自动化有限公司 | A kind of power supply source switching device |
-
2015
- 2015-10-27 CN CN201510705953.2A patent/CN106611998A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204068418U (en) * | 2014-08-26 | 2014-12-31 | 西安博惠通用电气自动化有限公司 | A kind of power supply source switching device |
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| PB01 | Publication | ||
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Application publication date: 20170503 |