CN111900789B - ATS switch control device, circuit system and control method - Google Patents
ATS switch control device, circuit system and control method Download PDFInfo
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- CN111900789B CN111900789B CN202010781028.9A CN202010781028A CN111900789B CN 111900789 B CN111900789 B CN 111900789B CN 202010781028 A CN202010781028 A CN 202010781028A CN 111900789 B CN111900789 B CN 111900789B
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- 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
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- 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
- H02J9/062—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 AC powered loads
Abstract
The application provides an ATS switch control device, a circuit system and a control method, and belongs to the technical field of circuit control. The ATS switch control device includes: the automatic power supply system comprises a first power supply access end, a second power supply access end, a control module, a first detection circuit, a second detection circuit and an automatic transfer switch ATS; a first detection circuit is connected between the phase line and the zero line of the first power supply access end; a second detection circuit is connected between the phase line and the zero line of the second power supply access end; the first detection circuit and the second detection circuit are respectively used for detecting whether the first power supply access end and the second power supply access end supply power or not, so that the control module controls the ATS to execute power supply disconnection action through the control unit based on detection results of the first detection circuit and the second detection circuit. This application can reduce use cost, when, realizes the effect of decompression protection.
Description
Technical Field
The present disclosure relates to the field of circuit control technologies, and in particular, to an ATS switch control apparatus, a circuit system, and a control method.
Background
In order to prevent the influence caused by the occurrence of power failure accidents, two different power supply systems are provided in many power utilization places, for example: commercial power supply, unit power supply and the like.
Based on the consideration of cost reduction, more and more power supply units of the unit and the commercial power use a control main loop form of an Automatic Transfer Switching (ATS) switch and a molded case circuit breaker, and meet the general requirements of the power supply units of the unit and the commercial power: the unit electricity and the commercial power have an electric interlocking function and a mechanical interlocking device.
However, the currently adopted mode is mainly to respectively use two molded case circuit breakers, electric operating mechanisms and interlocking mechanisms for two sets of power supply systems to realize the electric interlocking and the mechanical interlocking of the unit electricity and the commercial power, and the cost is relatively high.
Disclosure of Invention
The application aims to provide an ATS switch control device, a circuit system and a control method, which can reduce the use cost and realize the effect of voltage loss protection.
The embodiment of the application is realized as follows:
in one aspect of the embodiments of the present application, an ATS switch control apparatus is provided, including: the automatic power supply system comprises a first power supply access end, a second power supply access end, a control module, a first detection circuit, a second detection circuit and an automatic transfer switch ATS;
a first detection circuit is connected between the phase line and the zero line of the first power supply access end; a second detection circuit is connected between the phase line and the zero line of the second power supply access end; the first power supply access end and the second power supply access end are connected with the power utilization access end through a second main contact and a first main contact of the ATS respectively;
the two power supply control ends of the control module are respectively connected with a first detection circuit and a second detection circuit, the first detection circuit, the second detection circuit and the power failure control end of the control module are respectively connected with two power supply control ends and a power failure control end in a control unit of the ATS; the control unit is used for controlling the ATS to execute power supply closing action or power supply disconnection work;
the power-off control end of the control module is also respectively connected with a first auxiliary contact and a second auxiliary contact of the ATS; the first auxiliary contact and the second auxiliary contact are also respectively connected with a first detection circuit and a second detection circuit;
the first detection circuit and the second detection circuit are respectively used for detecting whether the first power supply access end and the second power supply access end supply power or not, so that the control module controls the ATS to execute power supply disconnection action through the control unit based on detection results of the first detection circuit and the second detection circuit.
Optionally, the first detection circuit is a first relay, and the second detection circuit is a second relay;
a coil of a first relay is connected between the phase line and the zero line of the first power supply access end; a coil of a second relay is connected between the phase line and the zero line of the second power supply access end;
two power supply control ends of the control module are respectively connected with a normally open contact of the first relay and a normally open contact of the second relay; the normally open contact of the first relay, the normally open contact of the second relay and the power-off control end of the control module are respectively connected with two power supply control ends and a power-off control end of the ATS control unit;
the first auxiliary contact and the second auxiliary contact are also respectively connected with the normally closed contact of the second relay and the normally closed contact of the first relay.
Optionally, the ATS switching control device further includes: a first switch, a second switch, and a third switch;
the normally open contact of the first relay and the normally open contact of the second relay are respectively connected with two power supply control ends of the ATS control unit through a first switch and a second switch;
and the power-off control end of the control module is connected with the power-off control end of the ATS control unit through a third switch.
Optionally, the first switch is a third relay, the second switch is a fourth relay, and the third switch is a fifth relay;
the normally open contact of the first relay is connected with one end of a coil of a third relay, and the other end of the coil of the third relay is grounded; the normally open contact of the second relay is connected with one end of a coil of the fourth relay, and the other end of the coil of the fourth relay is grounded; the power-off control end of the control module is connected with one end of a coil of the fifth relay, and the other end of the coil of the fifth relay is grounded;
and the normally open contact of the third relay, the normally open contact of the fourth relay and the normally open contact of the fifth relay are respectively connected with two power supply control ends and a power failure control end of the ATS control unit.
Optionally, a power supply end of the control unit is connected to the first power supply access end or the second power supply access end.
Optionally, the control signal of the control module is from a Microcontroller MCU (micro Controller Unit), a Programmable Logic Controller PLC (Programmable Logic Controller), or a control key.
Optionally, the first power supply access terminal and the second power supply access terminal are two different ac power supply access terminals.
In another aspect of the embodiments of the present application, a circuit system is provided, where the circuit system includes the ATS switch control apparatus and an electric device;
and a first main contact and a second main contact of the ATS in the ATS switch control device are connected with the power utilization access end of the power utilization equipment.
In another aspect of the embodiments of the present application, an ATS switching control method applied to a control module in an ATS switching control apparatus is provided, where the method includes:
acquiring power supply detection results of a first detection circuit and a second detection circuit;
respectively determining whether the first power supply access end and the second power supply access end supply power according to the power supply detection results of the first detection circuit and the second detection circuit;
and if any one of the first power supply access end and the second power supply access end does not supply power, controlling the ATS to execute a power supply disconnection action through the ATS control unit.
Optionally, the method further comprises:
if the first power supply access end and the second power supply access end both supply power, detecting whether input power-off operation is received;
and if the power-off operation is received, controlling the ATS to execute a power supply disconnection action through the ATS control unit.
The beneficial effects of the embodiment of the application include:
in the ATS switch control device, the circuit system and the control method provided by the embodiment of the application, a first detection circuit is connected between a phase line and a zero line of a first power supply access end; a second detection circuit is connected between the phase line and the zero line of the second power supply access end; the first power supply access end and the second power supply access end are connected with the power utilization access end through a first main contact and a second main contact of the ATS respectively; the two power supply control ends of the control module are respectively connected with the first detection circuit and the second detection circuit, the first detection circuit, the second detection circuit and the power failure control end of the control module are respectively connected with the two power supply control ends and the power failure control end in the control unit of the ATS; the control unit is used for controlling the ATS to execute power supply closing action or power supply disconnection work; the power-off control end of the control module is also respectively connected with a first auxiliary contact and a second auxiliary contact of the ATS; the first auxiliary contact and the second auxiliary contact are also respectively connected with a first detection circuit and a second detection circuit; the first detection circuit and the second detection circuit are respectively used for detecting whether the first power supply access end and the second power supply access end supply power or not, so that the control module controls the ATS to execute power supply disconnection action through the control unit based on detection results of the first detection circuit and the second detection circuit, the auxiliary contacts can be correspondingly disconnected in time after the main contacts are disconnected through the linkage relation among the first auxiliary contacts, the second auxiliary contacts and the first main contacts and the second main contacts, and the phenomenon that an external circuit connected with the first power supply access end or the second power supply access end is damaged when voltage-loss tripping occurs after the power supply is disconnected is prevented, so that the voltage-loss protection effect of the whole circuit is improved; in addition, only the first power supply access end, the second power supply access end, the control module, the first detection circuit, the second detection circuit and the ATS are arranged, so that the manufacturing cost can be reduced, and the cost is lower compared with the cost of using two molded case circuit breakers and other devices.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a first schematic structural diagram of an ATS switch control device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram ii of an ATS switch control device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram three of an ATS switch control device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an ATS switch control device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a circuit system according to an embodiment of the present disclosure;
fig. 6 is a schematic flowchart of an ATS switch control method according to an embodiment of the present application;
fig. 7 is another schematic flow chart of an ATS switch control method according to an embodiment of the present application.
An icon: 10-ATS switch control means; 20-a power consumer; 100-a first power supply access terminal; 200-a second power supply access end; 300-a control module; 400-a first detection circuit; 411 — coil of first relay; 412-normally open contact of first relay; 413-normally closed contacts of the first relay; 500-a second detection circuit; 511-coil of second relay; 512-normally open contacts of the second relay; 513-normally closed contacts of a second relay; 610-a first main contact; 620-a second main contact; 630-a first auxiliary contact; 640-a second auxiliary contact; 650-a control unit; 651-first supply control terminal; 652-second supply control terminal; 653-a power-off control terminal; 654-a power supply terminal; 710-a first switch; 711-coil of third relay; 712-normally open contacts of the third relay; 720-a second switch; 721-coil of fourth relay; 722-a normally open contact of a fourth relay; 730-a third switch; 731-coil of fifth relay; 732-normally open contacts of the fifth relay.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be noted that the ATS switch control device provided in the embodiment of the present application may be a control device of an automatic transfer switch, and may be applied to a switch, and in order to prevent a situation that power failure occurs in a circuit powered commonly, which may result in power failure, when the circuit powered commonly fails, the switch may be switched to a standby power supply circuit through the ATS switch control device, so that power may be continuously used.
The specific structure of the ATS switch control apparatus provided in the present application and the connection relationship between these structures are explained below by specific embodiments.
Fig. 1 is a schematic structural diagram of an ATS switch control device according to an embodiment of the present application, and referring to fig. 1, the ATS switch control device includes: the power supply system comprises a first power supply access end 100, a second power supply access end 200, a control module 300, a first detection circuit 400, a second detection circuit 500 and an automatic transfer switch ATS; a first detection circuit 400 is connected between the phase line and the zero line of the first power supply access end 100; a second detection circuit 500 is connected between the phase line and the zero line of the second power supply access end 200; the first power supply access terminal 100 and the second power supply access terminal 200 are respectively connected with the power utilization access terminal through a second main contact 620 and a first main contact 610 of the ATS; the two power supply control terminals of the control module 300 are respectively connected to the first detection circuit 400 and the second detection circuit 500, the first detection circuit 400, the second detection circuit 500, and the power-off control terminal of the control module 300 are respectively connected to the two power supply control terminals and the power-off control terminal of the control unit 650 of the ATS; the control unit 650 is configured to control the ATS to perform a power supply closing action, or alternatively, to perform a power supply opening operation; the power-off control end of the control module 300 is further connected to the first auxiliary contact 630 and the second auxiliary contact 640 of the ATS respectively; the first auxiliary contact 630 and the second auxiliary contact 640 are also connected to the first detection circuit 400 and the second detection circuit 500, respectively; the first detection circuit 400 and the second detection circuit 500 are respectively used for detecting whether the first power supply access terminal 100 and the second power supply access terminal 200 have power supply, so that the control module 300 controls the ATS to perform a power supply disconnection action through the control unit 650 based on the detection results of the first detection circuit 400 and the second detection circuit 500.
It should be noted that the power supplied by the first power supply access terminal 100 and the second power supply access terminal 200 may be three-phase four-wire alternating current, that is, three phase wires and one zero wire. Optionally, the power supply accessed by the first power supply access terminal 100 may be a circuit of a common power supply; the power supplied from the second power supply access terminal 200 may be a circuit for standby power supply.
The first detection circuit 400 and the second detection circuit 500 may be respectively provided with relevant devices for power supply detection, such as: relays, test meters, and the like, without limitation herein. The control module 300 may control the first detection circuit 400 and the second detection circuit 500 according to a preset control manner or a control instruction.
The automatic transfer switch ATS includes a main contact, an auxiliary contact, and a control unit 650, and the second power supply incoming terminal 200 is connected to the power consumption incoming terminal through the first main contact 610; the first power supply access terminal 100 is connected to the power consumption access terminal through the second main contact 620; the first auxiliary contact 630 and the second auxiliary contact 640 correspond to the first main contact 610 and the second main contact 620, respectively, and when the first main contact 610 is closed, the first auxiliary contact 630 is also closed; when the second main contact 620 is closed, the second auxiliary contact 640 is also closed; accordingly, when the first main contact 610 is opened, the first auxiliary contact 630 is also opened; when the second main contact 620 is opened, the second auxiliary contact 640 is also opened. The control unit 650 of the ATS may include a first power supply control terminal 651, a second power supply control terminal 652 and a power off control terminal 653, wherein the first power supply control terminal 651 may control the first power supply incoming terminal 100 to supply power to the power consuming incoming terminal, the second power supply control terminal 652 may control the second power supply incoming terminal 200 to supply power to the power consuming incoming terminal, and the power off control terminal 653 may control the first power supply incoming terminal 100 and the second power supply incoming terminal 200 to stop supplying power to the power consuming incoming terminal.
Optionally, in the power supply state, only one of the first power supply access terminal 100 or the second power supply access terminal 200 provides an ac voltage, for example: when the first power supply incoming terminal 100 is connected to the ac voltage, the second power supply incoming terminal 200 is not connected to the ac voltage. Taking the example of the first power supply access terminal 100 accessing the ac voltage, when the first power supply access terminal 100 in the power supply state is powered off due to an external factor (for example, an accident or a manual trimming), the current power off condition can be obtained through the first detection circuit 400, and after the first power supply access terminal 100 is powered off, the first detection circuit 400 is also powered off, and the control module 300 may be preset with relevant processing manners after the detection circuit is powered off, and the control module 300 may be correspondingly controlled according to the preset processing manners or a manual manner, so as to disconnect the first power supply control terminal 651 in the on state in the control unit 650 and connect the second power supply control terminal 652 in the off state, so that the second power supply access terminal 200 accesses the ac voltage to continue to supply power to the power using power access terminal.
Optionally, during the process of switching power supply, the states of the first auxiliary contact 630 and the second auxiliary contact 640 are respectively consistent with the states of the first main contact 610 and the second main contact 620, so that when a short circuit or an open circuit occurs during the process of switching power supply, the power-off control terminal 653 can be turned on in time to open the circuit, thereby preventing damage to devices in the circuit.
In the ATS switch control device provided in the embodiment of the present application, a first detection circuit is connected between a phase line and a zero line of a first power supply access end; a second detection circuit is connected between the phase line and the zero line of the second power supply access end; the first power supply access end and the second power supply access end are connected with the power utilization access end through a first main contact and a second main contact of the ATS respectively; the two power supply control ends of the control module are respectively connected with the first detection circuit and the second detection circuit, the first detection circuit, the second detection circuit and the power failure control end of the control module are respectively connected with the two power supply control ends and the power failure control end in the control unit of the ATS; the control unit is used for controlling the ATS to execute power supply closing action or power supply disconnection work; the power-off control end of the control module is also respectively connected with a first auxiliary contact and a second auxiliary contact of the ATS; the first auxiliary contact and the second auxiliary contact are also respectively connected with a first detection circuit and a second detection circuit; the first detection circuit and the second detection circuit are respectively used for detecting whether the first power supply access end and the second power supply access end supply power or not, so that the control module controls the ATS to execute power supply disconnection action through the control unit based on detection results of the first detection circuit and the second detection circuit, the auxiliary contacts can be correspondingly disconnected in time after the main contacts are disconnected through the linkage relation among the first auxiliary contacts, the second auxiliary contacts and the first main contacts and the second main contacts, and the phenomenon that an external circuit connected with the first power supply access end or the second power supply access end is damaged when voltage-loss tripping occurs after the power supply is disconnected is prevented, so that the voltage-loss protection effect of the whole circuit is improved; in addition, only the first power supply access end, the second power supply access end, the control module, the first detection circuit, the second detection circuit and the ATS are arranged, so that the manufacturing cost can be reduced, and the cost is lower compared with the cost of using two molded case circuit breakers and other devices.
The specific structure and connection relationship of the ATS switch control device when the detection circuit is a relay are explained below by specific embodiments.
Fig. 2 is a schematic structural diagram of an ATS switch control device according to an embodiment of the present application, and referring to fig. 2, a first detection circuit 400 is a first relay, and a second detection circuit 500 is a second relay; a coil 411 of a first relay is connected between the phase line and the zero line of the first power supply access end 100; a coil 511 of a second relay is connected between the phase line and the zero line of the second power supply access end 200; the two power supply control ends of the control module 300 are respectively connected with the normally open contact 412 of the first relay and the normally open contact 512 of the second relay; the normally open contact 412 of the first relay, the normally open contact 512 of the second relay, and the power-off control end of the control module 300 are respectively connected to two power supply control ends and a power-off control end of the ATS control unit 650; the first auxiliary contact 630 and the second auxiliary contact 640 are also connected to the normally closed contact 513 of the second relay and the normally closed contact 413 of the first relay, respectively.
It should be noted that the first relay (the complete structure of the relay is not shown in fig. 2, and each part of the relay is separately shown) may include: a coil 411 of the first relay, a normally open contact 412 of the first relay, and a normally closed contact 413 of the first relay; the second relay may include: a coil 511 of the second relay, a normally open contact 512 of the second relay, and a normally closed contact 513 of the second relay. The states of the normally open contact 412 of the first relay and the normally closed contact 413 of the first relay are always kept in opposite states, that is, when the normally open contact 412 of the first relay is opened, the normally closed contact 413 of the first relay is closed; when the normally open contact 412 of the first relay is closed, the normally closed contact 413 of the first relay is opened. Accordingly, when the normally open contact 512 of the second relay is opened, the normally closed contact 513 of the second relay is closed; when the normally open contact 512 of the second relay is closed, the normally closed contact 513 of the second relay is opened.
The coil in the relay may be an electromagnetic coil, and the normally open contact is in an open state when not energized, and the normally closed contact is in a closed state when not energized.
The related control switches of the ATS switch control apparatus and their connection relationship in the present application are explained below by specific embodiments.
Fig. 3 is a schematic structural diagram of an ATS switch control device according to an embodiment of the present application, and referring to fig. 3, the ATS switch control device further includes: a first switch 710, a second switch 720, and a third switch 730; the normally open contact 412 of the first relay and the normally open contact 512 of the second relay are respectively connected with two power supply control ends of the ATS control unit 650 through a first switch 710 and a second switch 720; the power-off control terminal of the control module 300 is connected to the power-off control terminal 653 of the ATS control unit 650 through the third switch 730.
It should be noted that the control module 300 can make the first power supply control terminal 651 of the control unit 650 be turned on by closing the first switch 710, and accordingly, can make the second power supply control terminal 652 of the control unit 650 be turned on by closing the second switch 720, and can make the power off control terminal 653 of the control unit 650 be turned on by closing the third switch 730.
The specific structure and connection of these switches, when they are relays, are explained below by means of specific embodiments.
Fig. 4 is a fourth schematic structural diagram of the ATS switch control device according to the embodiment of the present application, please refer to fig. 4, in which the first switch 710 is a third relay, the second switch 720 is a fourth relay, and the third switch 730 is a fifth relay; the normally open contact 412 of the first relay is connected with one end of a coil 711 of the third relay, and the other end of the coil 711 of the third relay is grounded; the normally open contact 512 of the second relay is connected with one end of a coil 721 of the fourth relay, and the other end of the coil 721 of the fourth relay is grounded; the power-off control end of the control module 300 is connected with one end of the coil 731 of the fifth relay, and the other end of the coil 731 of the fifth relay is grounded; the normally open contact 712 of the third relay, the normally open contact 722 of the fourth relay and the normally open contact 732 of the fifth relay are respectively connected with the first power supply control terminal 651, the second power supply control terminal 652 and the power off control terminal 653 of the ATS control unit 650.
It should be noted that the third relay may include: a coil 711 of the third relay, a normally open contact 712 of the third relay; the fourth relay may include: a coil 721 of the fourth relay, a normally open contact 722 of the fourth relay; the fifth relay may include: a coil 731 of the fifth relay, and a normally open contact 732 of the fifth relay.
The specific structures and functions of the coil and the normally open contact are similar to those of the first relay and the second relay, and are not described herein again.
Optionally, the control end of the control unit 650 may include four connection points (C connection point, 0 connection point, 1 connection point, 2 connection points), wherein the wire of the C connection point is a common wire and is connected to other three connection points through wires, the normally open contact 712 of the third relay, the normally open contact 722 of the fourth relay, the normally open contact 732 of the fifth relay is disposed on the wires corresponding to these three connection points, the normally open contact 712 of the third relay is disposed on the wire at the 1 connection point, the normally open contact 722 of the fourth relay is disposed on the wire at the 2 connection point, and the normally open contact 732 of the fifth relay is disposed on the wire at the 0 connection point. When the normally open contact 712 of the third relay is closed, the connection point C and the connection point 1 are conducted, so that the first power supply control terminal 651 is conducted; when the normally open contact 722 of the fourth relay is closed, the connection point C and the connection point 2 are conducted, so that the second power supply control terminal 652 is conducted; when the normally open contact 732 of the fifth relay is closed, conduction is established between the C connection point and the 0 connection point, and the power-off control terminal 653 is turned on.
Alternatively, with continued reference to fig. 4, the power supply terminal 654 of the control unit 650 connects the first power supply access terminal 100 and the second power supply access terminal 200 (the connection relationship is not drawn in fig. 4).
It should be noted that the power source end 654 may include two power source ports, and optionally, the two power source ports may be an N end and an L end, respectively, where the N end may be connected to a zero line of the first power supply access end 100 and the second power supply access end 200, and the L end may be connected to a phase line of the first power supply access end 100 and the second power supply access end 200, and when any one of the power supply access ends supplies power, the power source end may provide a working power source for the control unit 650 in the ATS.
Optionally, the control signal of the control module 300 comes from a microcontroller MCU, a programmable controller PLC, or a control key.
It should be noted that, when a control signal of the control module is from the microcontroller MCU or the programmable controller PLC, a corresponding control mode may be set therein, and when it is detected whether the first power supply access end and the second power supply access end are powered on, corresponding control may be performed according to the preset control mode; when the control module is a control key, corresponding control can be performed in response to an operation instruction corresponding to the key.
Alternatively, the control module 300 may be other types of controllers as long as the control process can be implemented.
Optionally, the first power supply access 100 and the second power supply access 200 are two different ac power supply accesses.
It should be noted that, the first power supply access end 100 may be a mains supply access end, and the second power supply access end 200 may be a unit power supply access end.
Optionally, the working conditions of each device in five cases of unit power supply, mains power supply, power supply disconnection, voltage-loss trip after mains power supply, and voltage-loss trip after unit power supply are explained below through multiple embodiments respectively.
(1) Power supply for machine set
When the unit supplies power (the second power supply access end 200 supplies power), the working power supply of the control unit 650 is normal, the coil 511 power supply of the second relay maintains on, the normally open contact 512 of the second relay is closed, the normally closed contact 513 of the second relay is opened, when the control module 300 has a corresponding unit power supply operation output, the coil 721 power supply of the fourth relay maintains on, the normally open contact 722 of the fourth relay is closed, so that the connection point C and the connection point 1 of the control unit 650 are connected, so that the first power supply control end 651 is connected, the ATS executes the relevant actions of unit power supply, the first main contact 610 is closed, the second main contact 620 is opened, the first auxiliary contact 630 is closed, the second auxiliary contact 640 is opened, the unit power supply operation is finished, and the power utilization access end is supplied with power by the unit.
(2) Mains supply
When the mains supply is supplied (the first power supply access terminal 100 supplies power), the working power supply of the control unit 650 is normal, the coil 411 power supply of the first relay maintains on, the normally open contact 412 of the first relay is closed, the normally closed contact 413 of the first relay is opened, after the control module 300 outputs corresponding mains supply operation, the coil 711 power supply of the third relay maintains on, the normally open contact 712 of the third relay is closed, so that the connection point C and the connection point 2 of the control unit 650 are switched on, so that the second power supply control terminal 652 is switched on, the ATS executes relevant actions of mains supply, the first main contact 610 is opened, the second main contact 620 is closed, the first auxiliary contact 630 is opened, the second auxiliary contact 640 is closed, the mains supply operation is finished, and the power utilization access terminal is supplied with the mains supply.
(3) Power supply disconnection
When the mains supply or the unit supply power, the working power supply of the control unit 650 is normal, after the control module 300 outputs the corresponding power supply and power failure operation, the coil 731 power supply of the fifth relay is kept on, the normally open contact 732 of the fifth relay is closed, so that the connection point C and the connection point 0 of the control unit 650 are connected, so that the power failure control end 653 is connected, the ATS executes the relevant actions of power supply and power failure, the first main contact 610 is disconnected, the second main contact 620 is disconnected, the first auxiliary contact 630 is disconnected, the second auxiliary contact 640 is disconnected, the power supply and power failure operation is finished, and no power supply is connected to the power utilization access end.
(4) Voltage-loss tripping after mains supply
When the mains supply is used, if the mains supply is disconnected and the unit is electrically connected, the second main contact 620 is closed, the second auxiliary contact 640 is closed, the working power supply of the control unit 650 is normal, the coil 411 of the first relay is powered off, the normally closed contact 413 of the first relay is closed, the coil 731 of the fifth relay is powered on, and the normally open contact 732 of the fifth relay is closed, so that the connection point C and the connection point 0 of the control unit 650 are closed, the ATS executes the related actions of power supply disconnection, the second main contact 620 is disconnected, the second auxiliary contact 640 is disconnected, and the voltage-loss tripping action is realized.
(5) Under-voltage tripping after unit power supply
When the unit supplies power, if the unit is electrically disconnected and the mains supply is connected, the first main contact 610 is closed, the first auxiliary contact 630 is closed, the working power supply of the control unit 650 is normal, the coil 511 of the second relay is powered off, the normally closed contact 513 of the second relay is closed, the coil 731 of the fifth relay is powered on, and the normally open contact 732 of the fifth relay is closed, so that the connection point C and the connection point 0 of the control unit 650 are closed, and the ATS executes the related actions of power supply disconnection, so that the first main contact 610 is disconnected, the first auxiliary contact 630 is disconnected, and the voltage-loss tripping action is realized.
The specific structure and connection relationship of the circuit system in the embodiment of the present application are explained below by specific embodiments.
Fig. 5 is a schematic structural diagram of a circuit system according to an embodiment of the present application, and referring to fig. 5, the circuit system includes the ATS switch control apparatus 10 and an electric device 20; the first main contact 610 and the second main contact 620 of the ATS in the ATS switch control device 10 are connected to the power access terminal of the electric equipment 20.
Alternatively, the electric device 20 may be a device that cannot be powered off in daily life, such as: working equipment in the fields of fire-fighting systems, medical systems and the like.
The following explains a specific implementation procedure of the ATS switch control method in the present application by using a specific embodiment.
Fig. 6 is a schematic flow chart of an ATS switch control method according to an embodiment of the present application, and referring to fig. 6, the ATS switch control method is applied to a control module of an ATS switch control device, and the method includes:
s610: and acquiring power supply detection results of the first detection circuit and the second detection circuit.
It should be noted that the power supply detection result may be obtained by detecting whether or not power is supplied to the first detection circuit and the second detection circuit.
S620: and respectively determining whether the first power supply access end and the second power supply access end supply power according to the power supply detection results of the first detection circuit and the second detection circuit.
It should be noted that the control module may determine whether the first power supply access end and the second power supply access end have power supply according to whether the first detection circuit and the second detection circuit have power supply, if the first detection circuit is powered on, it indicates that the first power supply access end has power supply, otherwise, it does not; correspondingly, if the second detection circuit is powered on, it is indicated that the second power supply access terminal has power supply, otherwise, it does not.
S630: and if any one of the first power supply access end and the second power supply access end does not supply power, controlling the ATS to execute a power supply disconnection action through the ATS control unit.
It should be noted that, if any one of the first power supply access terminal and the second power supply access terminal does not supply power, it is indicated that a power failure phenomenon occurs at the power supply access terminal, and in order to prevent a rear-end load circuit from being damaged due to voltage-loss tripping, the ATS may be controlled by the control unit to disconnect the main contact of the access terminal correspondingly connected to cut off the circuit.
Fig. 7 is another schematic flow chart of an ATS switch control method according to an embodiment of the present application, please refer to fig. 7, where the method further includes:
s710: and if the first power supply access end and the second power supply access end both have power supplies, detecting whether the input power-off operation is received.
It should be noted that, if the first power supply access end and the second power supply access end both have power supplies, when the operation of manual power off needs to be performed, the control module may detect whether the power off operation of external input is received, and the power off operation may be input to the control module in a keyboard input manner.
S720: and if the power-off operation is received, controlling the ATS to execute a power supply disconnection action through the ATS control unit.
It should be noted that, if it is detected that the power-off operation has been received, the corresponding switch may be turned on to control the ATS control unit to perform a power supply disconnection operation, so as to use the power input terminal to power off.
In the ATS switch control device that this application embodiment provided, can realize the operation to the ATS switch according to the outage condition that detects the emergence or the outage operation of input, trip when the external circuit that first power supply incoming end 100 or second power supply incoming end 200 are connected takes place the decompression, the ATS power supply disconnection avoids the load rear end to appear the circuit damage phenomenon to improve the decompression protection effect of whole circuit.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An ATS switch control device, comprising: the automatic power supply system comprises a first power supply access end, a second power supply access end, a control module, a first detection circuit, a second detection circuit and an automatic transfer switch ATS;
a first detection circuit is connected between the phase line and the zero line of the first power supply access end; a second detection circuit is connected between the phase line and the zero line of the second power supply access end; the first power supply access end and the second power supply access end are respectively connected with a power utilization access end through a second main contact and a first main contact of the ATS;
the two power supply control ends of the control module are respectively connected with the first detection circuit and the second detection circuit, and the first detection circuit, the second detection circuit and the power failure control end of the control module are respectively connected with the two power supply control ends and the power failure control end in the control unit of the ATS; the control unit is used for controlling the ATS to execute power supply closing action or power supply disconnection work;
the power-off control end of the control module is also respectively connected with a first auxiliary contact and a second auxiliary contact of the ATS; the first auxiliary contact and the second auxiliary contact are also respectively connected with the first detection circuit and the second detection circuit;
the first detection circuit is a first relay, the second detection circuit is a second relay, and two power supply control ends of the control module are respectively connected with a normally open contact of the first relay and a normally open contact of the second relay; the first auxiliary contact and the second auxiliary contact are also respectively connected with the normally closed contact of the second relay and the normally closed contact of the first relay;
the first detection circuit and the second detection circuit are respectively used for detecting whether the first power supply access end and the second power supply access end supply power or not, so that the control module controls the ATS to execute power supply disconnection action through the control unit based on detection results of the first detection circuit and the second detection circuit;
the first auxiliary contact and the second auxiliary contact of the ATS correspond to the first main contact and the second main contact of the ATS, respectively, and when the first main contact is closed, the first auxiliary contact is also closed; when the second main contact is closed, the second auxiliary contact is also closed; correspondingly, when the first main contact is opened, the second auxiliary contact is also opened, and when the second main contact is opened, the second auxiliary contact is opened.
2. The ATS switch control apparatus of claim 1, wherein a coil of the first relay is connected between a phase line and a neutral line of the first power supply access, and a coil of the second relay is connected between a phase line and a neutral line of the second power supply access;
the normally open contact of the first relay, the normally open contact of the second relay and the power-off control end of the control module are respectively connected with two power supply control ends and two power-off control ends of the control unit of the ATS.
3. The ATS switch control apparatus according to claim 2, further comprising: a first switch, a second switch, and a third switch;
the normally open contact of the first relay and the normally open contact of the second relay are respectively connected with two power supply control ends of a control unit of the ATS through the first switch and the second switch;
and the power-off control end of the control module is connected with the power-off control end of the control unit of the ATS through the third switch.
4. The ATS switch control apparatus according to claim 3, wherein the first switch is a third relay, the second switch is a fourth relay, and the third switch is a fifth relay;
the normally open contact of the first relay is connected with one end of a coil of the third relay, and the other end of the coil of the third relay is grounded; the normally open contact of the second relay is connected with one end of a coil of the fourth relay, and the other end of the coil of the fourth relay is grounded; the power-off control end of the control module is connected with one end of a coil of the fifth relay, and the other end of the coil of the fifth relay is grounded;
and the normally open contact of the third relay, the normally open contact of the fourth relay and the normally open contact of the fifth relay are respectively connected with two power supply control ends and a power failure control end of the control unit of the ATS.
5. The ATS switch control device according to any one of claims 1-4, wherein a power supply terminal of the control unit is connected to the first power supply access terminal or the second power supply access terminal.
6. The ATS switch control device according to any one of claims 1-4, wherein the control signal of the control module is from a microcontroller MCU, a programmable controller PLC, or a control button.
7. The ATS switch control apparatus of any one of claims 1-4, wherein the first and second supply access terminals are two different ac supply access terminals.
8. Circuitry comprising the ATS switch control apparatus of any one of claims 1-7 and a powered device;
and a first main contact and a second main contact of the ATS in the ATS switch control device are connected with a power utilization access end of the electric equipment.
9. An ATS switching control method applied to a control module in the ATS switching control apparatus according to any one of claims 1 to 7, the method comprising:
acquiring power supply detection results of the first detection circuit and the second detection circuit;
respectively determining whether the first power supply access end and the second power supply access end supply power according to the power supply detection results of the first detection circuit and the second detection circuit;
and if any one of the first power supply access end and the second power supply access end does not supply power, controlling the ATS to execute a power supply disconnection action through a control unit of the ATS.
10. The method of claim 9, further comprising:
if the first power supply access end and the second power supply access end both supply power, detecting whether input power-off operation is received;
and if the power-off operation is received, controlling the ATS to execute a power supply disconnection action through a control unit of the ATS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010781028.9A CN111900789B (en) | 2020-08-05 | 2020-08-05 | ATS switch control device, circuit system and control method |
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| CN202010781028.9A CN111900789B (en) | 2020-08-05 | 2020-08-05 | ATS switch control device, circuit system and control method |
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| CN202475002U (en) * | 2012-01-31 | 2012-10-03 | 成都格林赛斯科技有限公司 | Intelligent integrated power supply ATS |
| CN104426231A (en) * | 2013-09-07 | 2015-03-18 | 西安司坤电子科技有限公司 | Switching control device of special emergency power supply of medium-frequency induction furnace complete equipment |
| CN204046261U (en) * | 2014-07-22 | 2014-12-24 | 郑州众智科技股份有限公司 | A kind of double power supply converting switch control circuit |
| US10175299B2 (en) * | 2016-03-01 | 2019-01-08 | Eaton Intelligent Power Limited | Apparatus and methods for monitoring auxiliary contact status |
| CN109861370A (en) * | 2018-12-25 | 2019-06-07 | 湖北鄂电萃宇电器有限公司 | A kind of ATS Dual-power switching system |
| CN211063416U (en) * | 2020-01-15 | 2020-07-21 | 乌鲁木齐市气象局 | Intelligent power management system for unattended weather station |
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