CN206878551U - AC power PLC switching devices free of discontinuities - Google Patents
AC power PLC switching devices free of discontinuities Download PDFInfo
- Publication number
- CN206878551U CN206878551U CN201720617718.4U CN201720617718U CN206878551U CN 206878551 U CN206878551 U CN 206878551U CN 201720617718 U CN201720617718 U CN 201720617718U CN 206878551 U CN206878551 U CN 206878551U
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- Prior art keywords
- circuit
- power
- plc
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- discontinuities
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- 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
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- 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
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- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a kind of AC power PLC switching devices free of discontinuities, it is made up of control circuit and major loop, the control circuit is made up of power transformer, rectification circuit, voltage sample, mu balanced circuit, first interface, second interface, PLC, triggers circuit, drive circuit, electromagnetic relay K and working indicating, and the major loop is made up of circuit breaker Q S, fuse FU, relay K and bidirectional thyristor KS；The device performance is stable and switches fast, suitable for the occasion powered with two-way AC power, and allow have certain difference on two-way power phase, when main power source has a power failure, stand-by power supply very fast can be cut load power circuit by PLC switching devices free of discontinuities, continual power supply is provided for load, to meet the needs of equipment normal operation.
Description
Technical field
It the utility model is related to a kind of AC power PLC switching devices free of discontinuities.
Background technology
It is well known that all powered for some important departments that can not have a power failure using double-circuit communication power supply.Break in former power supply
When electric, the very fast incision stand-by power supply of energy, to ensure the normal work of computer, database or other system equipments that can not be powered off
Make.And the switching problem between power supply is the key for ensureing power supply free of discontinuities, switching time of automatic switching control equipment, reliability and
Security just seems extremely important.Now, many departments are powered when having a power failure using uninterrupted power source, this mode needs to match somebody with somebody
Standby a number of battery, it is invisible to add operation and maintenance cost, and the power-on time of uninterrupted power source is limited.This
To being powered with double-circuit communication power supply, and it can at least ensure that the normal department of power supply is uneconomic all the way, is not only wasted
Power supply, it can also increase power pollution.
Utility model content
In view of this, the utility model purpose is to provide a kind of stable performance and switching is fast, suitable for being handed over two-way
The occasion of power supply power supply is flowed, and allows have certain difference on two-way power phase, when main power source has a power failure, PLC is free of discontinuities to be cut
Stand-by power supply very fast can be cut load power circuit by changing device, continual power supply be provided for load, to meet that equipment is normal
The AC power PLC switching devices free of discontinuities of the needs of operation.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of AC power PLC switchings free of discontinuities
Device, it is made up of control circuit and major loop, the control circuit is by power transformer, rectification circuit, voltage sample, voltage stabilizing electricity
Road, first interface, second interface, PLC, triggers circuit, drive circuit, electromagnetic relay K and work instruction
Circuit is formed, the power transformer, rectification circuit, voltage sample, mu balanced circuit, interface, PLC, triggering
Circuit, drive circuit, electromagnetic relay K and working indicating are sequentially connected, and the major loop is by circuit breaker Q S, fuse
FU, relay K and bidirectional thyristor KS compositions, the circuit breaker Q S, fuse FU, relay K and bidirectional thyristor KS are successively
Connection.
Preferably, the rectification circuit is provided with two-way, and first interface is connected, changed after the processing of the circuit
Into double switch signal, terminated at by the output for inputting first interface on the input port of PLC, two-way electricity
The switching signal in source is the input switch signal of programmable controller so that input switch signal passes through PLC
It is direct to subsequent conditioning circuit transfer control instruction, two output ports of programmable controller by its output port after Intelligent treatment
It is connected in solid-state relay control port, the work of solid-state relay can be directly controlled with output signal.
Preferably, the first interface is provided with two, and the X00 and X01 two of PLC is connected on respectively
Individual input, PLC just obtains from input port X00 and X01 represents whether two-way power supply has the switch of electricity
Signal.
Preferably, the voltage sample is provided with two-way, and two-way voltage sample is connected with second interface, is enabled to
Two-way power supply voltage signal difference input voltage sampling 1 and voltage sample 2, power supply voltage signal is by voltage sampling circuit
Second interface is inputted after processing, then on-off model is according to condition converted into by second interface, and is indicated with indicator lamp.When
Supply voltage value overrate 15% when, switching signal is " on ", is then normally "off".
Preferably, the second interface is provided with two, and the X02 and X03 two of PLC is connected on respectively
Individual input, PLC just obtained from input port X02 and X03 represent two-way supply voltage value whether superpressure
Switching signal.
Preferably, using Phototube Coupling between the control circuit and main circuit, main circuit, which uses, has zero potential detection
The solid-state relay switching of function, connected by no-voltage, the work of zero-current switching pattern, moment generation high current is connected to reduce
To the percussion of solid-state relay, the safety and reliability of the switching device is improved.
Term is explained as follows：
Rectification circuit：Alternating current is transformed into the circuit of Rectified alternating current；
Voltage sample：The Acquisition Circuit of power supply magnitude of voltage size；
Mu balanced circuit：Voltage-stabilized power supply in control circuit；
Interface circuit：With the connection circuit of PLC Programmable input ports, the present apparatus refers to " whether there is power supply
It is electric " or magnitude of voltage " whether the 25% " of overrate is converted into the on-off model that programmable device can identify --- switch
" being switched on or switched off "；
Triggers circuit：Produce the circuit of trigger signal driving bidirectional thyristor conducting；
Drive circuit：Control signal is amplified to the circuit of driving relay work.
The utility model has the technical effect that following aspect：By long-time broadcast system power supply from
Dynamic switching is on probation, has stable performance, switches the advantages of fast, will not because power supply switching and caused by broadcast system host computer
Instant cut-off is shut down, and is that Computerized intelligent broadcast system, computer embedded device, Database Systems equipment etc. need uninterrupted power supply
Preferred power transfer device, suitable for the occasion powered with two-way AC power, and allow have one on two-way power phase
Fixed difference, when main power source has a power failure, stand-by power supply very fast can be cut load power circuit by PLC switching devices free of discontinuities, be
Load provides continual power supply, to meet the needs of equipment normal operation.
Brief description of the drawings
Fig. 1 is a kind of circuit design drawing of AC power PLC switching devices free of discontinuities of the utility model.
Embodiment
Below in conjunction with accompanying drawing 1, specific embodiment of the present utility model is described in further detail, so that the utility model skill
Art scheme is more readily understood and grasped.
A kind of AC power PLC switching devices free of discontinuities, as shown in figure 1, being made up of control circuit and major loop, the control
Electric routing power transformer processed, rectification circuit, voltage sample, mu balanced circuit, first interface, second interface, PLC PLC technologies
Device, triggers circuit, drive circuit, electromagnetic relay K and working indicating are formed, the power transformer, rectification circuit, electricity
Press sampling, mu balanced circuit, interface, PLC, triggers circuit, drive circuit, electromagnetic relay K and work instruction
Circuit is sequentially connected, and the rectification circuit is provided with two-way, and connects first interface, is transformed into two after the processing of the circuit
Path switching signal, terminated at by the output for inputting first interface on the input port of PLC, two-way power supply is opened
OFF signal is the input switch signal of programmable controller so that at the intelligence that input switch signal passes through PLC
After reason, directly it is connected on admittedly to subsequent conditioning circuit transfer control instruction, two output ports of programmable controller by its output port
On state Control port, the work of solid-state relay can be directly controlled with output signal, the first interface is provided with
Two, and two inputs of X00 and X01 of PLC are connected on respectively, PLC programmable controllers are just from input
Mouth X00 and X01, which is obtained, represents whether two-way power supply has the switching signal of electricity.The voltage sample is provided with two-way, and two-way
Voltage sample is connected with second interface, enables to two-way power supply voltage signal difference input voltage sampling 1 and voltage sample 2,
Power supply voltage signal inputs second interface after the processing of voltage sampling circuit, then is according to condition converted into out by second interface
Signal is measured in pass, and is indicated with indicator lamp.When the 15% of supply voltage value overrate, switching signal is " on ",
Normal then be "off", the second interface is provided with two, and is connected on the X02 and X03 two of PLC respectively
Input, PLC just obtained from input port X02 and X03 represent two-way supply voltage value whether superpressure
Switching signal.The major loop is made up of circuit breaker Q S, fuse FU, relay K and bidirectional thyristor KS, the breaker
QS, fuse FU, relay K and bidirectional thyristor KS are sequentially connected.Phototube Coupling is used between the control circuit and main circuit,
Main circuit uses the solid-state relay with zero potential detection function to switch, and is connected by no-voltage, the work of zero-current switching pattern,
Connect moment to reduce and produce high current to the percussion of solid-state relay, improve the security of the switching device with it is reliable
Property.
When duplex feeding power supply is normal, give load preferential power supply by main power source, as wherein one in duplex feeding power supply
Road power supply disconnects, then powers for You electricity Na roads power supply, controlled automatically according to power supply state by PLC programming Controls device
System, power supply circuit all the way therein is cut into load circuit, realizes the power supply free of discontinuities of load circuit, in the moment of switching, born
Carrying the host computer of circuit will not cause power-off to shut down, and the wherein switching time of governor circuit is not more than 20 milliseconds；Furthermore most
Heavy load capacity is single-phase 220 volts 60 amperes, 60 amperes of three-phase 380 volt；Finally, standby power supply can be civil power, inversion electricity
One of which in source and house generator.
The utility model has the technical effect that following aspect：By long-time broadcast system power supply from
Dynamic switching is on probation, has stable performance, switches the advantages of fast, will not because power supply switching and caused by broadcast system host computer
Instant cut-off is shut down, and is that Computerized intelligent broadcast system, computer embedded device, Database Systems equipment etc. need uninterrupted power supply
Preferred power transfer device, suitable for the occasion powered with two-way AC power, and allow have one on two-way power phase
Fixed difference, when main power source has a power failure, stand-by power supply very fast can be cut load power circuit by PLC switching devices free of discontinuities, be
Load provides continual power supply, to meet the needs of equipment normal operation.
Certainly, it is representative instance of the present utility model above, in addition, the utility model can also have other a variety of
Embodiment, all technical schemes formed using equivalent substitution or equivalent transformation, all falls within the requires of the utility model protection
Within the scope of.
Claims (6)
1. a kind of AC power PLC switching devices free of discontinuities, are made up of control circuit and major loop, it is characterised in that：The control
Electric routing power transformer processed, rectification circuit, voltage sample, mu balanced circuit, first interface, second interface, PLC PLC technologies
Device, triggers circuit, drive circuit, electromagnetic relay K and working indicating are formed, the power transformer, rectification circuit, electricity
Press sampling, mu balanced circuit, interface, PLC, triggers circuit, drive circuit, electromagnetic relay K and work instruction
Circuit is sequentially connected, and the major loop is made up of circuit breaker Q S, fuse FU, relay K and bidirectional thyristor KS, the open circuit
Device QS, fuse FU, relay K and bidirectional thyristor KS are sequentially connected.
A kind of 2. AC power PLC switching devices free of discontinuities as claimed in claim 1, it is characterised in that：The rectification circuit
Two-way is provided with, and connects first interface.
A kind of 3. AC power PLC switching devices free of discontinuities as claimed in claim 2, it is characterised in that：The first interface
Two are provided with, and is connected on two inputs of X00 and X01 of PLC respectively.
A kind of 4. AC power PLC switching devices free of discontinuities as claimed in claim 3, it is characterised in that：The voltage sample
Two-way is provided with, and two-way voltage sample is connected with second interface.
A kind of 5. AC power PLC switching devices free of discontinuities as claimed in claim 4, it is characterised in that：The second interface
Two are provided with, and is connected on two inputs of X02 and X03 of PLC respectively.
A kind of 6. AC power PLC switching devices free of discontinuities as claimed in claim 5, it is characterised in that：The control circuit
Phototube Coupling is used between main circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617718.4U CN206878551U (en) | 2017-05-31 | 2017-05-31 | AC power PLC switching devices free of discontinuities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617718.4U CN206878551U (en) | 2017-05-31 | 2017-05-31 | AC power PLC switching devices free of discontinuities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878551U true CN206878551U (en) | 2018-01-12 |
Family
ID=61337456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720617718.4U Expired - Fee Related CN206878551U (en) | 2017-05-31 | 2017-05-31 | AC power PLC switching devices free of discontinuities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346914A (en) * | 2017-05-31 | 2017-11-14 | 毛思杰 | AC power PLC switching devices free of discontinuities |
| TWI737275B (en) * | 2020-04-27 | 2021-08-21 | 台達電子工業股份有限公司 | Backup circuit with zero current switching and method of backup the same |
-
2017
- 2017-05-31 CN CN201720617718.4U patent/CN206878551U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346914A (en) * | 2017-05-31 | 2017-11-14 | 毛思杰 | AC power PLC switching devices free of discontinuities |
| TWI737275B (en) * | 2020-04-27 | 2021-08-21 | 台達電子工業股份有限公司 | Backup circuit with zero current switching and method of backup the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20200531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |