CN206992782U - The monitoring of ATS a kind of and control loop - Google Patents
The monitoring of ATS a kind of and control loop Download PDFInfo
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- CN206992782U CN206992782U CN201720873032.1U CN201720873032U CN206992782U CN 206992782 U CN206992782 U CN 206992782U CN 201720873032 U CN201720873032 U CN 201720873032U CN 206992782 U CN206992782 U CN 206992782U
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- circuit
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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
Abstract
Low Voltage Electrical Apparatus is the utility model is related to, particularly the monitoring of ATS a kind of and control loop.The utility model discloses the monitoring of ATS a kind of and control loop, including processor and stand-by power supply start-up circuit, also include energy storage circuit and power-off decision circuitry, the conventional power supply of input termination of the energy storage circuit, the energy storage circuit is respectively processor and the power supply of stand-by power supply start-up circuit, the output end of the conventional power supply of input termination of the power-off decision circuitry, the control signal of the output termination processor of the power-off decision circuitry, the control output end of the processor connects the control signal of stand-by power supply start-up circuit, the stand-by power supply start-up circuit is used to start stand-by power supply.ATS switchs deactivation generating set immediately when the utility model can prevent power network short supply interruption (as shaken electricity), avoids energy waste.
Description
Technical field
The utility model belongs to Low Voltage Electrical Apparatus, monitoring and control loop more particularly to a kind of ATS.
Background technology
Double power supply automatic transfer switch (abbreviation ATS switches) is protection electrical equipment important in low-voltage network, can be according to normal
The failure situation of standby two-way power supply automatically engages normal side power supply and powered for load equipment, and proof load equipment is powered continuous
Property.
The automatic start generator function of ATS switches has very important effect, is in the conventional power supply of distribution network
Network transformer power supply, stand-by power supply are under generating set power conditions, when voltage or frequency event occur for network transformer power supply
During barrier, ATS switches should be able to the work of automatic start generating set, so in generating set output, stable (voltage and rate-adaptive pacemaker are just
After often), ATS switch input side of generating set power supplys can just be continuously load equipment power supply.
The enabling signal of generating set is often a pair of passive closures or cut-off signal, and the output of the signal switchs in ATS
In typically by control relay realize.When not disconnection fault occurs for conventional power supply, ATS switches have power supply,
Therefore, ATS switches are easy to obtain electric or dead electricity by circuit control relay to export enabling signal, if however, conventional
Disconnection fault occurs for power supply, and ATS switches will not have externally fed, then it will be unable to control relay to export enabling signal.
To realize power cut-off automatic start generating set, existing technology is such：As Fig. 1 shows, ATS switches exist
When voltage or frequency fault do not occur for conventional power supply, by allow relay persistently it is electric without exporting enabling signal, conventional
During power cut-off failure, the automatic dead electricity of relay and export enabling signal.This method event is so under the real existing frequently-used power cut-off of energy
Startup to generating set, but a distinct disadvantage be present：During normal operation, relay need for a long time persistently it is electric, circuit power consumption is very
It is big and the service life of relay can be substantially reduced.To improve the not foot point, separately there is a technology to use magnetic latching relay
To replace common relay.
Although treatment technology above solves the problems, such as automatic start generating set under power cut-off, but triggered another
One problem：Even if short supply interruption (as shaken electricity) failure occurs for conventional power supply, ATS switches are also by automatic deactivation generating set, so
And current load equipment typically all has the ability for bearing short supply interruption, so if the power-off of such temporal power occurs and goes
Start the waste that generating set will undoubtedly cause the energy.
The content of the invention
The purpose of this utility model is to provide a kind of ATS monitoring with control loop to solve the above problems.
To achieve the above object, the technical solution adopted in the utility model is：The monitoring of ATS a kind of and control loop, bag
Include processor and stand-by power supply start-up circuit, in addition to energy storage circuit and power-off decision circuitry, the input of the energy storage circuit
Conventional power supply is connect, the energy storage circuit is respectively that processor and stand-by power supply start-up circuit are powered, the power-off decision circuitry
The output end of the conventional power supply of input termination, the control signal of the output termination processor of the power-off decision circuitry, the place
The control output end of reason device connects the control signal of stand-by power supply start-up circuit, and the stand-by power supply start-up circuit is standby for starting
Use power supply.
Further, the energy storage circuit includes the first energy storage circuit and the second energy storage circuit, first energy storage circuit
Powered for processor, second energy storage circuit is powered for stand-by power supply start-up circuit.
Further, in addition to step-down rectifying circuit, DC/DC circuits and voltage conversion circuit, the step-down rectifier are electric
The input on road connects conventional power supply and stand-by power supply respectively, and the output end of the step-down rectifying circuit connects the first accumulation of energy electricity respectively
Road, the input for powering off decision circuitry, voltage conversion circuit and DC/DC circuits, the output termination electricity of first energy storage circuit
The input of voltage conversion circuit, the power input of the output termination processor of the voltage conversion circuit, the DC/DC circuits
Output end connect the input of the second energy storage circuit and stand-by power supply start-up circuit respectively.
Further, the power-off decision circuitry includes resistance R1 and R2, and resistance R1 and the R2 series connection is followed by dropping
Between the output end and ground of voltage rectifier, the node between the resistance R1 and R2 connects the control signal of processor.
Further, first energy storage circuit includes diode D1 and electric capacity C1, the diode D1 positive termination drop
The output end of voltage rectifier, the negative terminal of the diode D1 connect electric capacity C1 first end and the input of voltage conversion circuit respectively
End, the second end ground connection of the electric capacity C1.
Further, second energy storage circuit includes diode D2 and electric capacity C3, the diode D2 positive termination DC/
The output end of DC circuits, the negative terminal of the diode D2 connect electric capacity C3 first end and the input of stand-by power supply start-up circuit respectively
End, the second end ground connection of the electric capacity C3.
Further, the voltage conversion circuit is low differential voltage linear voltage stabilizer circuit.
Further, the stand-by power supply start-up circuit includes relay and relay drive circuit, and the relay drives
The control output end of the control termination processor of dynamic circuit, the relay drive circuit are used for the break-make for driving relay, institute
Relay is stated to be serially connected in the enabling signal loop of stand-by power supply.
Further, the relay is magnetic latching relay.
Further, in addition to electric voltage frequency observation circuit, the electric voltage frequency observation circuit are used to monitor conventional power supply
Whether there are voltage or frequency dependence failure with stand-by power supply, and monitoring result is transferred to processor.
Advantageous effects of the present utility model：
1. energy storage circuit of the present utility model may continue to work for a period of time after ensure that power cut-off, can avoid commonly using
The generation of power supply short supply interruption (as shaken electricity) failure and error starting generating set phenomenon, saves energy consumption；Relay without holding for a long time
Electricly continuous, circuit power consumption is small and can greatly prolong electronic component service life.
2. the utility model energy storage circuit is only powered for processor and stand-by power supply start-up circuit, energy storage circuit ensure that
Exploitativeness and the capacity for reducing required energy storage capacitor.
MCU processors reduce MCU operation work(into sleep pattern processing after 3. the utility model uses electric power disconnection
Consumption, further reduces energy storage capacitor capacity and extends the time that works on；
4. the utility model, which introduces power-off decision circuitry, need not detect each phase real-time voltage situation of power supply, reduce at software
The complexity of reason, and energy storage circuit does not have to power for electric voltage frequency observation circuit, further reduces energy storage capacitor capacity and prolongs
The time that works on is grown.
5. the utility model circuit structure is simple, it is easy to accomplish, cost is low.
Brief description of the drawings
The monitoring and the partial circuit schematic diagram of control loop that Fig. 1 is existing ATS；
Fig. 2 is the circuit structure block diagram of the utility model specific embodiment；
Fig. 3 is the partial circuit schematic diagram of the utility model specific embodiment.
Embodiment
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
As shown in Fig. 2 a kind of ATS monitoring and control loop, are arranged at ATS and switch interior or its external intelligent controller
It is interior, with power switching mechanism (it with two-way power supply is respectively that load equipment is powered to be used to changing standing, referring in particular to prior art,
This is no longer described in detail) ATS switches are formed together, including processor 7, stand-by power supply start-up circuit 8, energy storage circuit and power-off judge electricity
Road 5, the conventional power supply 1 of input termination of the energy storage circuit, the energy storage circuit are respectively that processor 7 and stand-by power supply start electricity
Road 8 powers, the output end of the conventional power supply 1 of input termination of the power-off decision circuitry 5, the output of the power-off decision circuitry 5
The control signal of processor 7 is terminated, the control output end of the processor 7 connects the control input of stand-by power supply start-up circuit 8
End, the stand-by power supply start-up circuit 8 are used to start stand-by power supply 2.Processor 7 also has a control output end to connect Power convert machine
The control signal of structure
In this specific embodiment, the energy storage circuit includes the first energy storage circuit 4 and the second energy storage circuit 6, and described first
Energy storage circuit 4 is that processor 7 is powered, and second energy storage circuit 6 is that stand-by power supply start-up circuit 8 is powered.
Further, in the present embodiment, in addition to step-down rectifying circuit 3, DC/DC circuits 9, electric voltage frequency observation circuit 11
With voltage conversion circuit 10, the input of the step-down rectifying circuit 3 connects conventional power supply 1 and stand-by power supply 2, the drop respectively
The output end of voltage rectifier 3 connects the first energy storage circuit 4, power-off decision circuitry 5, voltage conversion circuit 10 and DC/DC electricity respectively
The input on road 9, the output of first energy storage circuit 4 connect the input of voltage conversion circuit 10, the voltage conversion
The power input of the output termination processor 7 of circuit 10, the output end of the DC/DC circuits 9 connect the second energy storage circuit 6 respectively
With the input of stand-by power supply start-up circuit 8, the electric voltage frequency observation circuit 11 is used to monitor conventional power supply 1 and stand-by power supply
Whether 2 have voltage or frequency dependence failure, and monitoring result is transferred into processor 7.
In this specific implementation, it is network transformer power supply to commonly use power supply 1, and stand-by power supply 2 is generating set power supply, certainly,
In other embodiments, commonly using power supply 1 and stand-by power supply 2 can be selected according to actual conditions.
In this specific implementation, step-down rectifying circuit 3, electric voltage frequency observation circuit 11 and DC/DC circuits 9 use existing electricity
Road, this is that those skilled in the art can realize easily, is no longer described in detail.
As shown in figure 3, in this specific embodiment, processor 7 is preferably MCU processors, certainly, in other embodiments,
Processor 7 can also be single-chip microcomputer etc., and voltage conversion circuit 10 is low pressure difference linear voltage regulator (LDO), and the power-off judges electricity
Road 5 includes resistance R1 and R2, and first energy storage circuit 4, which includes diode D1 and electric capacity C1, second energy storage circuit 6, to be included
Diode D2 and electric capacity C3, the stand-by power supply start-up circuit 8 include relay K1 and relay drive circuit, the relay
Drive circuit includes NPN triodes Q1 and Q2, photoelectrical coupler U1 and resistance R3-R5.
Resistance R1 and the R2 series connection is followed by between the output end VCC1 and ground GND1 of step-down rectifying circuit 3, the electricity
Node between resistance R1 and R2 connects the AD0 ends (control signal) of MCU processors 7.
The output end VCC1, the diode D1 of the positive termination step-down rectifying circuit 3 of the diode D1 negative terminal point
Electric capacity C1 first end and the input of low differential voltage linear voltage stabilizer circuit 10, the second end ground connection of the electric capacity C1 are not connect
GND1, the power supply power end of the output termination MCU processors 7 of the low differential voltage linear voltage stabilizer circuit 10.
The output end VCC1, the diode D2 of the input termination step-down rectifying circuit 3 of DC/DC circuits positive termination DC/
The output end of DC circuits 9, the negative termination capacitor C3 of diode D2 first end, the second end ground connection of the electric capacity C3, institute
State relay K1 coil and NPN triode Q2 connects and is followed by between diode D2 negative terminal and ground GND3, the relay
K1 switch is serially connected in the enabling signal loop of stand-by power supply 2, and NPN triode Q2 base stage connects the first of photoelectrical coupler U1
Output end, photoelectrical coupler U1 the second output end series resistance R5 connect diode D2 negative terminal, and the of photoelectrical coupler U1
One input series resistance R3 connects the output end of low differential voltage linear voltage stabilizer circuit 10, photoelectrical coupler U1 the second input
The triode Q1 that connects is grounded GND1, and triode Q1 base resistance R4 meets the control output end IO of MCU processors 7.
In this specific embodiment, the relay K1 is preferably magnetic latching relay, but not limited to this.
In this specific embodiment, electric capacity C1 and C3 amount of capacity can be selected according to actual conditions, be which determined
MCU processors 7 and stand-by power supply start-up circuit 8 (i.e. relay K1 drive circuits) can work on the length of time after power cut-off
It is short.
The course of work：When conventional power supply 1 does not power off, system power supply voltage VCC1 stores to energy storage capacitor C1, C3 charging complete
Can, while exported by low pressure difference linear voltage regulator 10 at the operating voltage VCC2, MCU of MCU processors 7 and its peripheral circuit
Manage voltage signals of the real-time monitoring voltage VCC1 of device 7 after resistance R1 and R2 partial pressure；After conventional power supply 1 powers off, energy storage capacitor C1
Starting to power to low pressure difference linear voltage regulator 10, MCU processors 7 detect that resistance R1 and R2 partial pressure value are less than power-off threshold value,
Judge that conventional power supply 1 has powered off, immediately close the functional sleep pattern into low-power consumption timing wake-up.When regularly calling out
The awake time arrives, if resistance R1 and the R2 partial pressure value that MCU processors 7 detect is still below powering off threshold value, MCU processors 7 are then
Judge conventional power supply 1 power off for it is long when power-off then go to drive relay K1 to act the enabling signal of output generator group 2, due to normal
Charged to energy storage capacitor C3 before being powered off with power supply 1, therefore now relay K1 can be with action message, if MCU processors 7
Resistance R1 and the R2 partial pressure value detected then judges that power cut-off is short supply interruption higher than power-off threshold value, MCU processors 7,
So not going the K1 actions of driving relay, ATS switchs deactivation generating set immediately when preventing power network short supply interruption (as shaken electricity),
Avoid energy waste.
The result that MCU processors 7 monitor always according to electric voltage frequency observation circuit 11, control power switching mechanism are thrown automatically
Enter normal side power supply to power for load equipment, the continuity of proof load equipment power supply.Prior art specifically is referred to, this is
What those skilled in the art can realize easily, no longer describe in detail.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (10)
1. a kind of ATS monitoring and control loop, including processor and stand-by power supply start-up circuit, it is characterised in that also include
Energy storage circuit and power-off decision circuitry, the conventional power supply of input termination of the energy storage circuit, the energy storage circuit is respectively to handle
Device and the power supply of stand-by power supply start-up circuit, the output end of the conventional power supply of input termination of the power-off decision circuitry, the power-off
The control signal of the output termination processor of decision circuitry, the control output end of the processor connects stand-by power supply start-up circuit
Control signal, the stand-by power supply start-up circuit be used for start stand-by power supply.
2. ATS according to claim 1 monitoring and control loop, it is characterised in that：The energy storage circuit includes first
Energy storage circuit and the second energy storage circuit, first energy storage circuit are powered for processor, and second energy storage circuit is standby electricity
Source start-up circuit power supply.
3. ATS according to claim 2 monitoring and control loop, it is characterised in that：Also include step-down rectifying circuit,
DC/DC circuits and voltage conversion circuit, the input of the step-down rectifying circuit connects conventional power supply and stand-by power supply respectively, described
The output end of step-down rectifying circuit connects the first energy storage circuit, power-off decision circuitry, voltage conversion circuit and DC/DC circuits respectively
Input, the input of the output termination voltage conversion circuit of first energy storage circuit, the output of the voltage conversion circuit
The power input of processor is terminated, the output end of the DC/DC circuits connects the second energy storage circuit respectively and stand-by power supply starts
The input of circuit.
4. ATS according to claim 3 monitoring and control loop, it is characterised in that：The power-off decision circuitry includes
Resistance R1 and R2, resistance R1 and the R2 series connection are followed by between the output end of step-down rectifying circuit and ground, the resistance R1 and
Node between R2 connects the control signal of processor.
5. ATS according to claim 3 monitoring and control loop, it is characterised in that：First energy storage circuit includes
The output end of diode D1 and electric capacity C1, the diode D1 positive termination step-down rectifying circuit, the negative terminal of the diode D1
Electric capacity C1 first end and the input of voltage conversion circuit, the second end ground connection of the electric capacity C1 are connect respectively.
6. ATS according to claim 3 monitoring and control loop, it is characterised in that：Second energy storage circuit includes
The output end of diode D2 and electric capacity C3, the diode D2 positive termination DC/DC circuits, the negative terminal difference of the diode D2
Connect electric capacity C3 first end and the input of stand-by power supply start-up circuit, the second end ground connection of the electric capacity C3.
7. ATS according to claim 3 monitoring and control loop, it is characterised in that：The voltage conversion circuit is low
Pressure difference linear regulator circuit.
8. ATS according to claim 3 monitoring and control loop, it is characterised in that：The stand-by power supply start-up circuit
Including relay and relay drive circuit, the control output end of the control termination processor of the relay drive circuit, institute
The break-make that relay drive circuit is used to drive relay is stated, the relay is serially connected in the enabling signal loop of stand-by power supply
In.
9. ATS according to claim 8 monitoring and control loop, it is characterised in that：The relay be magnetic keep after
Electrical equipment.
10. monitoring and the control loop of the ATS according to claim 1 or 2 or 3, it is characterised in that：Also include electric voltage frequency
Observation circuit, the electric voltage frequency observation circuit are used to monitor whether conventional power supply and stand-by power supply have voltage or frequency dependence event
Barrier, and monitoring result is transferred to processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720873032.1U CN206992782U (en) | 2017-07-18 | 2017-07-18 | The monitoring of ATS a kind of and control loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720873032.1U CN206992782U (en) | 2017-07-18 | 2017-07-18 | The monitoring of ATS a kind of and control loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206992782U true CN206992782U (en) | 2018-02-09 |
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ID=61404986
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720873032.1U Active CN206992782U (en) | 2017-07-18 | 2017-07-18 | The monitoring of ATS a kind of and control loop |
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| Country | Link |
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| CN (1) | CN206992782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112711287A (en) * | 2019-10-25 | 2021-04-27 | 恩智浦有限公司 | System including a low dropout regulator |
-
2017
- 2017-07-18 CN CN201720873032.1U patent/CN206992782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112711287A (en) * | 2019-10-25 | 2021-04-27 | 恩智浦有限公司 | System including a low dropout regulator |
| CN112711287B (en) * | 2019-10-25 | 2024-04-19 | 恩智浦有限公司 | System including low dropout voltage regulator |
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