CN110138076A - One kind two inlet wires, one mother automatic switching control system and method - Google Patents
One kind two inlet wires, one mother automatic switching control system and method Download PDFInfo
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- CN110138076A CN110138076A CN201910365053.6A CN201910365053A CN110138076A CN 110138076 A CN110138076 A CN 110138076A CN 201910365053 A CN201910365053 A CN 201910365053A CN 110138076 A CN110138076 A CN 110138076A
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- mother
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007257 malfunction Effects 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000004146 energy storage Methods 0.000 claims description 39
- 238000012512 characterization method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 11
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- 238000009826 distribution Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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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
Abstract
One kind two inlet wires, one mother automatic switching control system and method, including the first incoming line cabinet, the second incoming line cabinet, mother cabinet and PLC module.First, second incoming line cabinet and mother cabinet export the first, second, and third status signal respectively, the electric power thus supplied of PLC module real-time monitoring first via alternating current and the second road alternating current, and accordingly selection the first incoming line cabinet of control and the work of the second incoming line cabinet, or control mother cabinet and the second incoming line cabinet work, or control mother cabinet and the work of the first incoming line cabinet.Above-mentioned two inlet wires, one mother automatic switching control system and method, pass through the working condition of the first incoming line cabinet of PLC module real-time monitoring, the second incoming line cabinet and mother cabinet, when one of incoming line cabinet can not power, control mother cabinet work in time, it is diverted into the incoming line cabinet that can not be powered with the electric signal in the incoming line cabinet by power supply, the problem of avoiding the need for waste of manpower caused by staff on duty, and solve the problems, such as to realize existing malfunction when automatic switching using relay or be failure to actuate.
Description
Technical field
The invention belongs to power distribution system technology field, more particularly to a kind of two inlet wires, one mother automatic switching control system and
Method.
Background technique
In low-voltage distribution technology, the power supply mode of two inlet wires, one mother is generallyd use.Two inlet wires, one mother, refers to system
There are two incoming line cabinets for middle tool, and each incoming line cabinet connects alternating current all the way by transformer respectively, while connecting a certain number of loads；
Mother cabinet is equipped between two incoming line cabinets.
Currently, the power supply system of two inlet wires, one mother is generallyd use the mode of manual switching or is thrown automatically using relay
The mode cut in time is drawn the alternating current of normal work by mother cabinet with realizing when the failure all the way in two-way alternating current
In the incoming line cabinet to break down out to its alternating current, it is ensured that the load that two incoming line cabinets are connected can work normally.However, manually
The method of switching needs artificial progress, therefore 24 hours Attended modes, waste of manpower are needed in power distribution room；Relay is thrown automatically
The mode cut is then due to the rapid aging under the working condition charged for a long time of the coil of the unstability of relay and relay
The case where, and the risk that there is malfunction or be failure to actuate.
Therefore, there is need artificial carry out, in power distribution room for the technical solution of traditional switching or relay automatic switching
It needs Attended mode and there are problems that the risk for malfunctioning or being failure to actuate.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of two inlet wires, one mother automatic switching control system and method, purport
It needs manually to carry out present in the technical solution for solving traditional manual switching or relay automatic switching, be needed in power distribution room
Attended mode and the risk that there are problems that malfunction or be failure to actuate.
The first aspect of the embodiment of the present invention provides a kind of one mother automatic switching control system of two inlet wire, comprising:
Access first via alternating current, be configured as powering to the first load outgoing line cabinet and export the first of first state signal into
Line cabinet；Working condition, malfunction, energy storage state and the voltage signal of first incoming line cabinet described in the first state characterization
State；
Access the second road alternating current, be configured as powering to the second load outgoing line cabinet and export the second of the second status signal into
Line cabinet；Second status signal characterizes working condition, malfunction, energy storage state and the voltage signal of second incoming line cabinet
State；
It is connect with first incoming line cabinet and second incoming line cabinet, is configured as the mother of output third state signal
Cabinet；Working condition, malfunction and the energy storage state of mother cabinet described in the third state characterization；And
It connect, is configured as according to described with first incoming line cabinet, second incoming line cabinet and the mother cabinet
One status signal, second status signal and the third state signal, the first incoming line cabinet and described described in real-time monitoring
The working condition of two incoming line cabinets, and when first incoming line cabinet and second incoming line cabinet are powered controls described the respectively
One incoming line cabinet is to the first load outgoing line cabinet power supply and second incoming line cabinet to the second load outgoing line cabinet power supply；Or
When first incoming line cabinet can not power, the mother cabinet and second incoming line cabinet work are controlled respectively, by described the
Two road alternating currents lead to the first load outgoing line cabinet from second incoming line cabinet；Or when second incoming line cabinet can not power
When, the mother cabinet and first incoming line cabinet work are controlled respectively, by the first via alternating current from first incoming line cabinet
Lead to the PLC module of the second load outgoing line cabinet.
The second aspect of the embodiment of the present invention provides a kind of one mother automatic switching control method of two inlet wire, comprising:
It powers using the first incoming line cabinet access first via alternating current, to the first load outgoing line cabinet, and exports first state signal；
Working condition, malfunction, energy storage state and the voltage signal state of first incoming line cabinet described in the first state characterization；
Second road alternating current is accessed, to the second load outgoing line cabinet power supply using the second incoming line cabinet, and exports the second status signal；
Second status signal characterizes working condition, malfunction, energy storage state and the voltage signal state of second incoming line cabinet；
Third state signal is exported using mother cabinet；The working condition of mother cabinet described in the third state characterization,
Malfunction and energy storage state；
It is real using PLC module according to the first state signal, second status signal and the third state signal
When monitor the working condition of first incoming line cabinet and second incoming line cabinet, and when first incoming line cabinet with described second into
When line cabinet is powered, first incoming line cabinet is controlled respectively to the first load outgoing line cabinet power supply and second incoming line cabinet pair
The second load outgoing line cabinet power supply；Or when first incoming line cabinet can not power, the mother cabinet and institute are controlled respectively
The work of the second incoming line cabinet is stated, second road alternating current is led into the first load outgoing line cabinet from second incoming line cabinet；
Or when second incoming line cabinet can not power, the mother cabinet and first incoming line cabinet work are controlled respectively, by institute
It states first via alternating current and leads to the second load outgoing line cabinet from first incoming line cabinet.
Above-mentioned two inlet wire of one kind, one mother automatic switching control system and method, pass through PLC module real-time monitoring first
The working condition of incoming line cabinet, the second incoming line cabinet and mother cabinet controls mother cabinet when one of incoming line cabinet can not power in time
Work, the electric signal in the incoming line cabinet of power supply is diverted into the incoming line cabinet that can not be powered, avoid the need for staff on duty and
The problem of caused waste of manpower, and solve and existing malfunction when automatic switching is realized using relay or is failure to actuate
Problem.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is that the modular structure for two inlet wire of one kind, the one mother automatic switching control system that one embodiment of the invention provides is shown
It is intended to；
Fig. 2 is the exemplary circuit figure of PLC module in two inlet wires, one mother automatic switching control system shown in FIG. 1；
Fig. 3 is the exemplary circuit figure of the first incoming line cabinet in two inlet wires, one mother automatic switching control system shown in FIG. 1；
Fig. 4 is the exemplary circuit figure of the second incoming line cabinet in two inlet wires, one mother automatic switching control system shown in FIG. 1；
Fig. 5 (a) is the first incoming line cabinet, the second incoming line cabinet in two inlet wires, one mother automatic switching control system shown in FIG. 1
And the electric connection figure of mother cabinet；
Fig. 5 (b) is the exemplary circuit figure of mother cabinet in two inlet wires, one mother automatic switching control system shown in FIG. 1；
Fig. 6 be another embodiment of the present invention provides two inlet wire of one kind, one mother automatic switching control method detailed process
Figure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, the mould of two inlet wire of one kind, the one mother automatic switching control system provided for one embodiment of the invention
Block structure schematic diagram, for ease of description, only the parts related to this embodiment are shown, and details are as follows:
The first aspect of the embodiment of the present invention provides a kind of one mother automatic switching control system of two inlet wire, including first
Incoming line cabinet 100, the second incoming line cabinet 200, mother cabinet 300 and PLC module 400.
Wherein, the first incoming line cabinet 100 accesses first via alternating current, is configured as powering to the first load outgoing line cabinet and exports the
One status signal.
Specifically, the working condition, malfunction of the first incoming line cabinet of first state characterization 100, energy storage state and
Voltage signal state.First incoming line cabinet 100 includes the first breaker 1QF, when the first breaker 1QF is closed, allows first via city
Electricity inputs the first incoming line cabinet 100 through the first transformer T1, and what the working condition of the first incoming line cabinet 100 indicated is the first breaker
The on off operating mode of 1QF.
Second incoming line cabinet 200 accesses the second road alternating current, is configured as powering to the second load outgoing line cabinet and exports the second shape
State signal.
Specifically, the second status signal characterizes working condition, malfunction, energy storage state and the electricity of the second incoming line cabinet 200
Press signal condition.Second incoming line cabinet 200 includes the second breaker 2QF, when the second breaker 2QF is closed, allows the second road alternating current
The second incoming line cabinet 200 is inputted through the second transformer T2, that the working condition of the second incoming line cabinet 200 indicates is the second breaker 2QF
On off operating mode.
Mother cabinet 300 is connect with the first incoming line cabinet 100 and the second incoming line cabinet 200, is configured as output third state signal.
Specifically, working condition, malfunction and the energy storage state of third state characterization mother cabinet 300.Mother cabinet
300 include third breaker 3QF, and when third breaker 3QF is closed, mother cabinet 300 works.
PLC module 400 is connect with the first incoming line cabinet 100, the second incoming line cabinet 200 and mother cabinet 300, is configured as basis
First state signal, the second status signal and third state signal, real-time monitoring the first incoming line cabinet 100 and the second incoming line cabinet 200
Working condition it is right to control the first incoming line cabinet 100 respectively and when the first incoming line cabinet 100 and the second incoming line cabinet 200 are powered
First load outgoing line cabinet power supply and the second incoming line cabinet 200 are to the second load outgoing line cabinet power supply；Or when 100 nothing of the first incoming line cabinet
When method is powered, mother cabinet 300 and the work of the second incoming line cabinet 200 are controlled respectively, by the second road alternating current from the second incoming line cabinet 200
Lead to the first load outgoing line cabinet；Or when the second incoming line cabinet 200 can not power, respectively control mother cabinet 300 and first into
Line cabinet 100 works, and first via alternating current is led to the second load outgoing line cabinet from the first incoming line cabinet 100.
Optionally, PLC module 400 is realized using PLC controller.PLC controller is easy to use, and programming is simple, reliability
Height, strong antijamming capability, traditional relay control system have used a large amount of intermediate relay, the time relay, due to touching
Point contact is bad, is easy to appear failure.PLC controller replaces a large amount of intermediate relay and the time relay with software, only remains
Down and related a small amount of hardware element is output and input, wiring may decrease to the 1%~10% of relay control system, reduce
Because of failure caused by poor contact of contacts.PLC controller takes a series of hardware and software interference protection measures, has very strong
Anti-interference ability, the mean free error time reaches tens of thousands of hours.
Above-mentioned two inlet wire of one kind, one mother automatic switching control system, passes through 400 the first inlet wire of real-time monitoring of PLC module
The working condition of cabinet 100, the second incoming line cabinet 200 and mother cabinet 300 controls in time when one of incoming line cabinet can not power
Mother cabinet 300 works, and the electric signal in the incoming line cabinet of power supply is diverted into the incoming line cabinet that can not be powered, and avoids the need for specially
Caused by people is on duty the problem of waste of manpower, and solve using relay realize automatic switching when it is existing malfunction or
The problem of being failure to actuate.
Referring to Fig. 2, for the example of PLC module 400 in two inlet wires, one mother automatic switching control system shown in FIG. 1
Circuit diagram, for ease of description, only the parts related to this embodiment are shown, and details are as follows:
In an alternative embodiment, PLC module 400 includes input unit 401, output unit 402 and power supply unit.
Wherein, input unit 401 is connect with the first incoming line cabinet 100, the second incoming line cabinet 200 and mother cabinet 300, is configured as
Receive first state signal, the second status signal and third state signal.
Specifically, first state signal includes the first energy storage signal, first switch signal, Fisrt fault signal and first
Switch positions signal；Second status signal includes the second energy storage signal, second switch signal, the second fault-signal and the
Two switch positions signals；Third state signal include third energy storage signal, third switching signal, third fault-signal and
Third switch positions signal.
Output unit 402 is connect with the first incoming line cabinet 100, the second incoming line cabinet 200 and mother cabinet 300, is configured as exporting
Signal is controlled, to control the working condition of the first incoming line cabinet 100, the second incoming line cabinet 200 and mother cabinet 300 respectively.
Specifically, control signal includes the letter for controlling the first breaker 1QF progress separating brake or combined floodgate of the first incoming line cabinet 100
Number, the second breaker 2QF of the second incoming line cabinet 200 of control carry out separating brake or combined floodgate signal and control mother cabinet 300 the
Three breaker 3QF carry out the signal of separating brake or combined floodgate.
Power supply unit is configured as providing power supply to input unit 401 and output unit 402.
Optionally, input unit 401 includes the first energy storage signal input part 10, first switch signal input part 11, first
Fault-signal input terminal 12, the first switch positions signal input part 13, the second energy storage signal input part 15, second switch letter
Number input terminal 16, the second fault-signal input terminal 17, the second switch positions signal input part 18, the input of third energy storage signal
End 110, third switch signal input end 111, third fault-signal input terminal 112 and the input of third switch positions signal
End 113.
First energy storage signal input part 10, first switch signal input part 11, Fisrt fault signal input part 12 and first
Switch positions signal input part 13 connects the first incoming line cabinet 100, receives the first energy storage of the first incoming line cabinet 100 output respectively
Signal, first switch signal, Fisrt fault signal and the first switch positions signal.
Second energy storage signal input part 15, second switch signal input part 16, the second fault-signal input terminal 17 and second
Switch positions signal input part 18 connects the second incoming line cabinet 200, receives the second energy storage of the second incoming line cabinet 200 output respectively
Signal, second switch signal, the second fault-signal and the second switch positions signal.
Third energy storage signal input part 110, third switch signal input end 111, third fault-signal input terminal 112 and
Third switch positions signal input part 113 connects mother cabinet 300, receives the third energy storage letter that mother cabinet 300 exports respectively
Number, third switching signal, third fault-signal and third switch positions signal.
Optionally, output unit 402 includes the first intermediate relay KA11, the second intermediate relay KA12, among third
Relay KA13 and the 4th intermediate relay KA14.
Specifically, the first intermediate relay KA11 includes first coil and the first normally opened contact, the second intermediate relay
KA12 includes the second coil and the second normally opened contact, and third intermediate relay KA13 includes tertiary coil and third normally opened contact,
4th intermediate relay KA14 includes the 4th coil and the 4th normally opened contact.
The first end of first coil, the first end of the second coil, the first end of tertiary coil and the 4th intermediate relay
The first end of the coil of KA14 is all connected with mother cabinet 300；The second end of first coil connects the first incoming line cabinet 100, the second coil
Second end connect the second incoming line cabinet 200, the second end of tertiary coil connects mother cabinet 300 with the second end of the 4th coil.
First normally opened contact connects the first incoming line cabinet 100；Second normally opened contact connects the second incoming line cabinet 200；Third is normally opened
Contact connects mother cabinet 300 with the 4th normally opened contact.
Specifically, the closing circuit of the first incoming line cabinet of connection 100 of the first normally opened contact, simultaneously with the first switch knob SBC1
Connection connection, when the first coil of the first intermediate relay KA11 obtains electric actuation, the first normally opened contact closure, the first incoming line cabinet
100 the first breaker 1QF combined floodgate work.The closing circuit of the second incoming line cabinet of connection 200 of second normally opened contact is closed with second
Lock button SBC2 is connected in parallel, when the second coil of the second intermediate relay KA12 obtains electric actuation, the second normally opened contact closure,
Second breaker 2QF combined floodgate work of the second incoming line cabinet 200.Third normally opened contact connects the closing circuit of mother cabinet 300, with the
Three switch knob SBC3 are connected in parallel, when the tertiary coil of third intermediate relay KA13 obtains electric actuation, third normally opened contact
Closure, the third breaker 3QF combined floodgate work of mother cabinet 300；4th normally opened contact connects the sub-gate circuit of mother cabinet 300, with
Third opening button SBS3 is connected in parallel, when four coils of the 4th intermediate relay KA14 obtain electric actuation, the 4th normally opened contact
Closure, the third breaker 3QF separating brake work of mother cabinet 300.
Referring to Fig. 3, showing for the first incoming line cabinet 100 in two inlet wires, one mother automatic switching control system shown in FIG. 1
Example circuit diagram, for ease of description, only the parts related to this embodiment are shown, and details are as follows:
In an alternative embodiment, the first incoming line cabinet 100 includes first fuse 1FU, the first change-over switch 1SA, the 5th
Intermediate relay 1KA1, the first breaker 1QF, the first switch knob SBC1, the first opening button SBS1, the first combined floodgate indicator light
HR1 and the first separating brake indicator light HG1.
Specifically, the first change-over switch 1SA includes manual, stopping and automatic location options.As the first change-over switch 1SA
(the third contact 3 of the first change-over switch 1SA is connected to the 4th contact 4), 400 work of PLC module when in automatic location options
Make, when PLC module 400 outputs control signals to the first incoming line cabinet 100, the first normally opened touching of the first intermediate relay KA11
Point closure, the first breaker 1QF automatic closing.When the first change-over switch 1SA is in manually location options, (the first conversion is opened
Close 1SA the first contact 1 be connected to the second contact 2), PLC module 400 does not work, need by manually press the first combined floodgate by
Button SBC1 closes a floodgate, or manually presses the first opening button SBS1 and carry out separating brake.
5th intermediate relay 1KA1 includes the 5th coil and the 5th normally opened contact.
The first end of first fuse 1FU accesses first via alternating current, and the second end of first fuse 1FU, first, which are closed a floodgate, presses
The first end of button SBC1, the first end of the first opening button SBS1 and PLC module 400 connect the first change-over switch 1SA；The
The second end of one switch knob SBC1 connect the first breaker 1QF with the second end of the first opening button SBS1；First, which closes a floodgate, refers to
Show that the first end of lamp HR1 connect the second end of first fuse 1FU with the first end of the first separating brake indicator light HG1, first closes a floodgate
The second end of indicator light HR1 connect the first breaker 1QF with the second end of the first separating brake indicator light HG1.
The second end of the first end connection first fuse 1FU of 5th coil, the second end connection first of the 5th coil are disconnected
Road device 1QF；The second end of the first end connection first fuse 1FU of 5th normally opened contact, the second end of the 5th normally opened contact connect
Connect PLC module 400.
Specifically, when the 5th coil of the 5th intermediate relay 1KA1 obtains electric actuation, the 5th normally opened contact closure, output the
One energy storage signal is to PLC module 400.First fuse 1FU is used to protect the circuit system of the first incoming line cabinet 100, be allowed to from
The influence of abnormal high current and damage internal component.When the first breaker 1QF closes a floodgate, exported by normally opened contact 1QF-OF
First switch signal is to the first switch signal input part 11 of PLC module 400, and first switch signal is switching signal at this time；When
When first breaker 1QF breaks down, Fisrt fault signal is exported to the first of PLC module 400 by normally opened contact 1QF-SDE
Fault-signal input terminal 12；When the first change-over switch 1SA being in automatic location options or in manually location options,
The first switch positions signal input part 13 of corresponding first switch positions signal to PLC module 400 is exported respectively.
Referring to Fig. 4, showing for the second incoming line cabinet 200 in two inlet wires, one mother automatic switching control system shown in FIG. 1
Example circuit diagram, for ease of description, only the parts related to this embodiment are shown, and details are as follows:
In an alternative embodiment, the second incoming line cabinet 200 includes second fuse 2FU, the second change-over switch 2SA, the 6th
Intermediate relay 2KA1, the second breaker 2QF, the second switch knob SBC2, the second opening button SBS2, the second combined floodgate indicator light
HR2 and the second separating brake indicator light HG2；Second change-over switch 2SA includes manual, stopping and automatic location options.
Specifically, when the second change-over switch 2SA is in automatic location options, (third of the second change-over switch 2SA is touched
First 3 are connected to the 4th contact 4), PLC module 400 works.When PLC module 400 outputs control signals to the second incoming line cabinet 200,
The second normally opened contact of second intermediate relay KA12 is closed, the second breaker 2QF automatic closing.As the second change-over switch 2SA
When in manually location options (the first contact 1 of the second change-over switch 2SA is connected to the second contact 2), PLC module 400 is not
Work, need to close a floodgate by manually pressing the second switch knob SBC2, or manually press the second opening button SBS2 into
Row separating brake.
6th intermediate relay 2KA1 includes the 6th coil and the 6th normally opened contact.
The first end of second fuse 2FU accesses the second road alternating current, and the second end of second fuse 2FU, second, which are closed a floodgate, presses
The first end of button SBC2, the first end of the second opening button SBS2 and PLC module 400 connect the second change-over switch 2SA；The
The second end of two switch knob SBC2 connect the second breaker 2QF with the second end of the second opening button SBS2；Second, which closes a floodgate, refers to
Show that the first end of lamp HR2 connect the second end of second fuse 2FU with the first end of the second separating brake indicator light HG2, second closes a floodgate
The second end of indicator light HR2 connect the second breaker 2QF with the second end of the second separating brake indicator light HG2.
The second end of the first end connection second fuse 2FU of 6th coil, the second end connection second of the 6th coil are disconnected
Road device 2QF；The second end of the first end connection second fuse 2FU of 6th normally opened contact, the second end of the 6th normally opened contact connect
Connect PLC module 400.
Specifically, when the 6th coil of the 6th intermediate relay 2KA1 obtains electric actuation, the 6th normally opened contact closure, output the
Two energy storage signals are to PLC module 400.Second fuse 2FU is used to protect the circuit system of the second incoming line cabinet 200, be allowed to from
The influence of abnormal high current and damage internal component.When the second breaker 2QF closes a floodgate, exported by normally opened contact 1QF-OF
Second switch signal is to the second switch signal input part 16 of PLC module 400, and second switch signal is switching signal at this time；When
When second breaker 2QF breaks down, the second fault-signal is exported to the second of PLC module 400 by normally opened contact 2QF-SDE
Fault-signal input terminal 17；When the second change-over switch 2SA being in automatic location options or in manually location options,
The second switch positions signal input part 18 of corresponding second switch positions signal to PLC module 400 is exported respectively.
Please refer to Fig. 5 (a) and 5 (b), Fig. 5 (a) is the in two inlet wires, one mother automatic switching control system shown in FIG. 1
The electric connection figure of one incoming line cabinet 100, the second incoming line cabinet 200 and mother cabinet 300, Fig. 5 (b) are two inlet wire one shown in FIG. 1
The exemplary circuit figure of mother cabinet 300 in mother automatic switching control system illustrates only and the present embodiment phase for ease of description
The part of pass, details are as follows:
In an alternative embodiment, mother cabinet 300 includes third change-over switch 3SA, the 7th intermediate relay 3KA1, the 8th
Intermediate relay 3KA2, the 9th intermediate relay 3KA3, third breaker 3QF, third switch knob SBC3, third opening button
SBS3, third combined floodgate indicator light HR3 and third separating brake indicator light HG3.
Specifically, third change-over switch 3SA includes manual, stopping and automatic location options.As third change-over switch 3SA
(the third contact 3 of third change-over switch 3SA is connected to the 4th contact 4), 400 work of PLC module when in automatic location options
Make.When PLC module 400 outputs control signals to mother cabinet 300, the third normally opened contact of third intermediate relay KA13 is closed
It closes, third breaker 3QF automatic closing.(the third change-over switch when third change-over switch 3SA is in manually location options
The first contact 1 of 3SA is connected to the second contact 2), PLC module 400 does not work, and needs by manually pressing third switch knob
SBC3 closes a floodgate, or manually presses third opening button SBS3 and carry out separating brake.
7th intermediate relay 3KA1 includes the 7th coil and the 7th normally opened contact, and the 8th intermediate relay 3KA2 includes
8th coil and the 8th normally opened contact, the 9th intermediate relay 3KA3 include the 9th coil and the first normally-closed contact.
8th coil first end connects the first incoming line cabinet 100, the 9th coil first end with the first end of the 8th normally opened contact
The second incoming line cabinet 200 is connected with the first end of the first normally-closed contact；The second end of 8th coil and the second termination of the 9th coil
Zero curve；The second end of 8th normally opened contact and the second end of the first normally-closed contact connect the electric signal input as mother cabinet 300 altogether
End.
Third change-over switch 3SA connection electric signal input end, first end, the third opening button of third switch knob SBC3
The first end and PLC module 400 of SBS3 connects third change-over switch 3SA；The second end and third of third switch knob SBC3
The second end of opening button SBS3 connects third breaker 3QF；The first end and third separating brake of third combined floodgate indicator light HR3 indicates
The first end of lamp HG3 connects electric signal input end, and the second end of third combined floodgate indicator light HR3 is with third separating brake indicator light HG3's
Second end connects third breaker 3QF.
The first end of 7th coil connects electric signal input end, and the second end of the 7th coil connects third breaker 3QF；
7th normally opened contact connects PLC module 400.
Specifically, when the 7th coil of the 7th intermediate relay 3KA1 obtains electric actuation, the 7th normally opened contact closure, output the
Three energy storage signals are to PLC module 400.When third breaker 3QF closes a floodgate, third switch is exported by normally opened contact 3QF-OF
Signal is to the third switch signal input end 111 of PLC module 400, and third switching signal is switching signal at this time；When third open circuit
When device 3QF breaks down, believed by the third failure that normally opened contact 3QF-SDE exports third fault-signal to PLC module 400
Number input terminal 112；When third change-over switch 3SA being in automatic location options or in manually location options, respectively
Export the third switch positions signal input part 113 of corresponding third switch positions signal to PLC module 400.
The 8th coil of 8th intermediate relay 3KA2 is connected between the firewire and zero curve of the first incoming line cabinet 100, and the 8th
Between the 8th normally opened contact of relay be connected to the electrical signal of the first incoming line cabinet 100 and the electric signal of mother cabinet 300
Between input terminal, when the 8th coil obtains electric actuation, the 8th normally opened contact closure, by the first via city in the first incoming line cabinet 100
Electricity is introduced into mother cabinet 300.The 9th coil of 9th intermediate relay 3KA3 is connected to the firewire and zero of the second incoming line cabinet 200
Between line, the 9th normally opened contact of the 9th intermediate relay 3KA3 is connected to the electrical signal and mother of two incoming line cabinets of ground
Between the electric signal input end of cabinet 300, when the 9th coil obtains electric actuation, the 9th normally opened contact, which closes, to be seen in the second incoming line cabinet 200
The second road alternating current be introduced into mother cabinet 300.
PLC module monitors the electric power thus supplied of first via alternating current and the second road alternating current, and accordingly controls the 8th intermediate relay
With the on-off of the 9th intermediate relay, thus control mother cabinet from have electricity alternating current all the way in it is electric, to two load outgoing line cabinets
Power supply.
In an alternative embodiment, PLC module 400 is set to the inside of the first incoming line cabinet 100, also can be set in second
The inside of incoming line cabinet 200 also can be set in the inside of mother cabinet 300.
In an alternative embodiment, PLC module 400 is realized using PLC controller.Specifically, PLC controller has such as
Lower program setting:
Setting is only permitted when the first breaker 1QF, the second breaker 2QF and third breaker 3QF are in gate-dividing state
Perhaps any two in the first breaker 1QF, the second breaker 2QF and third breaker 3QF are closed a floodgate.When first via alternating current and
When two road alternating currents have electricity, the first breaker 1QF and the second breaker 2QF close a floodgate, 300 separating brake of mother cabinet.When the first breaker
When any one in 1QF and the second breaker 2QF breaks down and lead to tripping, mother cabinet 300 can not close a floodgate.
When the first change-over switch 1SA, the second change-over switch 2SA and third change-over switch 3SA are in manually position choosing
Xiang Shi, can control according to the actual situation the first breaker 1QF by manual operation and the second breaker 2QF closes a floodgate, or
It controls the first breaker 1QF and third breaker 3QF closes a floodgate, or control the second breaker 2QF and third breaker 3QF
It closes a floodgate.
When the first change-over switch 1SA, the second change-over switch 2SA and third change-over switch 3SA are in automatic position choosing
Xiang Shi, PLC controller work, PLC controller automatically control the first breaker 1QF and the second breaker 2QF according to the actual situation
Close a floodgate, perhaps control the first breaker 1QF and third breaker 3QF close a floodgate or control the second breaker 2QF with
Third breaker 3QF closes a floodgate, specifically:
When first via alternating current and the second road alternating current have electricity, PLC controller output control signal, when delay first is default
Between (for example, 5s) be closed afterwards first electric breaker (such as the first breaker 1QF first it is electric, then the second breaker 2QF is opposite
For be after it is electric), then the second preset time (for example, 5s) that is delayed on the basis of the first preset time be closed afterwards after must
Electricity breaker (such as the first breaker 1QF first it is electric, then must be electric after in contrast the second breaker 2QF is)；
When first via alternating current has electricity and the second road alternating current is no electric, PLC controller output controls signal, and delay third is pre-
If the time (for example, 5s) is closed third breaker 3QF, so that first via alternating current introduces mother cabinet by the first incoming line cabinet 100
300, so that first via alternating current is simultaneously to the first load outgoing line cabinet and the second load outgoing line cabinet power supply.When first via alternating current comes again
After electricity, PLC controller output control signal, the 4th preset time (such as 5s) of delay disconnects third breaker 3QF, then the 4th
The second breaker 2QF of the 5th preset time (such as 5s) that is delayed on the basis of preset time control closure；
When the second road alternating current has electricity and first via alternating current is no electric, PLC controller output control signal, delay the 6th is in advance
If the time (for example, 5s) is closed third breaker 3QF, so that the second road alternating current introduces mother cabinet by the second incoming line cabinet 200
300, so that the second road alternating current is simultaneously to the first load outgoing line cabinet and the second load outgoing line cabinet power supply.When first via alternating current comes again
After electricity, PLC controller output control signal, the 7th preset time (such as 5s) of delay disconnects third breaker 3QF, then the 7th
The first breaker 1QF of the 8th preset time (such as 5s) that is delayed on the basis of preset time control closure.
Referring to Fig. 6, for another embodiment of the present invention provides two inlet wire of one kind one mother automatic switching control method
Specific flow chart, for ease of description, only the parts related to this embodiment are shown, and details are as follows:
The second aspect of the embodiment of the present invention provides a kind of one mother automatic switching control method of two inlet wire, including as follows
Step:
S01: it powers using the first incoming line cabinet 100 access first via alternating current, to the first load outgoing line cabinet, and exports the first shape
State signal；Working condition, malfunction, energy storage state and the voltage letter of first incoming line cabinet of first state characterization 100
Number state；
S02: the second road alternating current is accessed, to the second load outgoing line cabinet power supply using the second incoming line cabinet 200, and exports the second shape
State signal；Second status signal characterizes working condition, malfunction, energy storage state and the voltage letter of the second incoming line cabinet 200
Number state；
S03: third state signal is exported using mother cabinet 300；The work shape of third state characterization mother cabinet 300
State, malfunction and energy storage state；
S04: it using PLC module 400 according to first state signal, the second status signal and third state signal, supervises in real time
The working condition of first incoming line cabinet 100 and the second incoming line cabinet 200 is surveyed, and when the first incoming line cabinet 100 and the second incoming line cabinet 200
When powering, it is negative to second to the first load outgoing line cabinet power supply and the second incoming line cabinet 200 that the first incoming line cabinet 100 is controlled respectively
Carry outgoing line cabinet power supply；Or when the first incoming line cabinet 100 can not power, mother cabinet 300 and the second incoming line cabinet 200 are controlled respectively
Work, leads to the first load outgoing line cabinet from the second incoming line cabinet 200 for the second road alternating current；Or when 200 nothing of the second incoming line cabinet
When method is powered, mother cabinet 300 and the work of the first incoming line cabinet 100 are controlled respectively, by first via alternating current from the first incoming line cabinet 100
Lead to the second load outgoing line cabinet.
In conclusion the present invention provides a kind of automatic switching system and method, by PLC module real-time monitoring first into
The working condition of line cabinet, the second incoming line cabinet and mother cabinet controls mother cabinet work when one of incoming line cabinet can not power in time
Make, the electric signal in the incoming line cabinet of power supply is diverted into the incoming line cabinet that can not be powered, staff on duty is avoided the need for and leads
The problem of waste of manpower of cause, and solve existing malfunction when realizing automatic switching using relay or that is failure to actuate ask
Topic.
Various embodiments are described to various system and method herein.Many specific details are elaborated to provide pair
The thorough understanding of the general construction, function, manufacture and use of the embodiment that sum as described in the description is shown in the accompanying drawings.
However it will be understood by those skilled in the art that embodiment can be carried out in the case where not such specific detail.?
In other examples, well known operation, component and element is described in detail, in order to avoid embodiment in the description is made to be difficult to manage
Solution.It will be understood by those skilled in the art that being non-limited example in the embodiment with shown in herein, and therefore will be recognized that
It arrives, can be model representative and that embodiment might not be limited in specific structure and function details disclosed herein
It encloses.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of one mother automatic switching control system of two inlet wire characterized by comprising
First via alternating current is accessed, be configured as powering to the first load outgoing line cabinet and exports the first inlet wire of first state signal
Cabinet；Working condition, malfunction, energy storage state and the voltage signal shape of first incoming line cabinet described in the first state characterization
State；
The second road alternating current is accessed, be configured as powering to the second load outgoing line cabinet and exports the second inlet wire of the second status signal
Cabinet；Second status signal characterizes working condition, malfunction, energy storage state and the voltage signal shape of second incoming line cabinet
State；
It is connect with first incoming line cabinet and second incoming line cabinet, is configured as the mother cabinet of output third state signal；Institute
State the working condition, malfunction and energy storage state of mother cabinet described in third state characterization；And
It connect, is configured as according to first shape with first incoming line cabinet, second incoming line cabinet and the mother cabinet
State signal, second status signal and the third state signal, the first incoming line cabinet described in real-time monitoring and described second into
The working condition of line cabinet, and when first incoming line cabinet and second incoming line cabinet are powered, control respectively described first into
Line cabinet is to the first load outgoing line cabinet power supply and second incoming line cabinet to the second load outgoing line cabinet power supply；Or work as institute
When stating the first incoming line cabinet can not power, the mother cabinet and second incoming line cabinet work are controlled respectively, by second tunnel
Alternating current leads to the first load outgoing line cabinet from second incoming line cabinet；Or when second incoming line cabinet can not power,
The mother cabinet and first incoming line cabinet work are controlled respectively, and the first via alternating current is drawn from first incoming line cabinet
To the PLC module of the second load outgoing line cabinet.
2. two inlet wires, one mother automatic switching control system as described in claim 1, which is characterized in that the PLC module packet
It includes:
It is connect with first incoming line cabinet, second incoming line cabinet and the mother cabinet, is configured as receiving the first state
The input unit of signal, second status signal and the third state signal；
It is connect with first incoming line cabinet, second incoming line cabinet and the mother cabinet, output control signal is configured as, to divide
The output unit of the working condition of first incoming line cabinet, second incoming line cabinet and the mother cabinet is not controlled；And
It is configured as providing the power supply unit of power supply to the input unit and the output unit.
3. two inlet wires, one mother automatic switching control system as claimed in claim 2, which is characterized in that the input unit packet
It includes:
First energy storage signal input part, first switch signal input part, Fisrt fault signal input part, the first switch positions
Signal input part, the second energy storage signal input part, second switch signal input part, the second fault-signal input terminal, the second conversion
Switch position signal input terminal, third energy storage signal input part, third switch signal input end, third fault-signal input terminal with
And third switch positions signal input part；
The first energy storage signal input part, the first switch signal input part, the Fisrt fault signal input part and institute
It states the first switch positions signal input part and connects first incoming line cabinet；
The second energy storage signal input part, the second switch signal input part, the second fault-signal input terminal and institute
It states the second switch positions signal input part and connects second incoming line cabinet；
The third energy storage signal input part, the third switch signal input end, the third fault-signal input terminal and institute
It states third switch positions signal input part and connects the mother cabinet.
4. two inlet wires, one mother automatic switching control system as claimed in claim 2, which is characterized in that the output unit packet
It includes:
First intermediate relay, the second intermediate relay, third intermediate relay and the 4th intermediate relay；
First intermediate relay includes first coil and the first normally opened contact, and second intermediate relay includes the second line
Circle and the second normally opened contact, the third intermediate relay include tertiary coil and third normally opened contact, among the described 4th after
Electric appliance includes the 4th coil and the 4th normally opened contact.
The first end of the first coil, the first end of second coil, the first end of the tertiary coil and described
The first end of the coil of four intermediate relays is all connected with the mother cabinet；The first coil second end connection described first into
The second end of line cabinet, second coil connects second incoming line cabinet, the second end of the tertiary coil and the 4th line
The second end of circle connects the mother cabinet；
First normally opened contact connects first incoming line cabinet；Second normally opened contact connects second incoming line cabinet；Institute
It states third normally opened contact and connects the mother cabinet with the 4th normally opened contact.
5. two inlet wires, one mother automatic switching control system as described in claim 1, which is characterized in that first incoming line cabinet
Include:
First fuse, the first change-over switch, the 5th intermediate relay, the first breaker, the first switch knob, the first separating brake are pressed
Button, the first combined floodgate indicator light and the first separating brake indicator light；First change-over switch includes manual, stopping and automatic position
Option；
5th intermediate relay includes the 5th coil and the 5th normally opened contact；
The first end of the first fuse accesses the first via alternating current, the second end of the first fuse, described first
The first end of switch knob, the first end of first opening button and the PLC module connect first change-over switch；
The second end of first switch knob connect first breaker with the second end of first opening button；Described first
The first end of combined floodgate indicator light connect the second end of the first fuse with the first end of the first separating brake indicator light, described
The second end of first combined floodgate indicator light connect first breaker with the second end of the first separating brake indicator light；
The first end of 5th coil connects the second end of the first fuse, and the second end of the 5th coil connects institute
State the first breaker；The first end of 5th normally opened contact connects the second end of the first fuse, and the described 5th is normally opened
The second end of contact connects the PLC module.
6. two inlet wires, one mother automatic switching control system as described in claim 1, which is characterized in that second incoming line cabinet
Include:
Second fuse, the second change-over switch, the 6th intermediate relay, the second breaker, the second switch knob, the second separating brake are pressed
Button, the second combined floodgate indicator light and the second separating brake indicator light；Second change-over switch includes manual, stopping and automatic position
Option；
6th intermediate relay includes the 6th coil and the 6th normally opened contact；
The first end of the second fuse accesses second road alternating current, the second end of the second fuse, described second
The first end of switch knob, the first end of second opening button and the PLC module connect second change-over switch；
The second end of second switch knob connect second breaker with the second end of second opening button；Described second
The first end of combined floodgate indicator light connect the second end of the second fuse with the first end of the second separating brake indicator light, described
The second end of second combined floodgate indicator light connect second breaker with the second end of the second separating brake indicator light；
The first end of 6th coil connects the second end of the second fuse, and the second end of the 6th coil connects institute
State the second breaker；The first end of 6th normally opened contact connects the second end of the second fuse, and the described 6th is normally opened
The second end of contact connects the PLC module.
7. two inlet wires, one mother automatic switching control system as described in claim 1, which is characterized in that the mother cabinet packet
It includes:
Third change-over switch, the 7th intermediate relay, the 8th intermediate relay, the 9th intermediate relay, third breaker, third
Switch knob, third opening button, third combined floodgate indicator light and third separating brake indicator light；The third change-over switch includes hand
Dynamic, stopping and automatic location options；
7th intermediate relay includes the 7th coil and the 7th normally opened contact, and the 8th intermediate relay includes the 8th line
Circle and the 8th normally opened contact, the 9th intermediate relay include the 9th coil and the first normally-closed contact；
The 8th coil first end connects first incoming line cabinet, the 9th line with the first end of the 8th normally opened contact
It encloses first end and connects second incoming line cabinet with the first end of first normally-closed contact；The second end of 8th coil and institute
State the second terminal connecting zero line of the 9th coil；The second end of 8th normally opened contact and the second end of first normally-closed contact are total
Connect the electric signal input end as the mother cabinet；
The third change-over switch connects the electric signal input end, first end, the third point of the third switch knob
The first end of lock button and the PLC module connect the third change-over switch；The second end of the third switch knob with
The second end of the third opening button connects the third breaker；The first end of the third combined floodgate indicator light and described the
The first end of three separating brake indicator lights connects the electric signal input end, the second end and the third of the third combined floodgate indicator light
The second end of separating brake indicator light connects the third breaker；
The first end of 7th coil connects the electric signal input end, and the second end of the 7th coil connects the third
Breaker；7th normally opened contact connects the PLC module.
8. two inlet wires, one mother automatic switching control system as described in claim 1, which is characterized in that the PLC module is set
It is placed in the inside of first incoming line cabinet or the inside of second incoming line cabinet or the inside of the mother cabinet.
9. two inlet wires, one mother automatic switching control system as described in claim 1, which is characterized in that the PLC module is adopted
It is realized with PLC controller.
10. a kind of one mother automatic switching control method of two inlet wire characterized by comprising
It powers using the first incoming line cabinet access first via alternating current, to the first load outgoing line cabinet, and exports first state signal；It is described
The working condition, malfunction of first incoming line cabinet described in first state characterization, energy storage state and voltage signal state；
Second road alternating current is accessed, to the second load outgoing line cabinet power supply using the second incoming line cabinet, and exports the second status signal；It is described
Second status signal characterizes working condition, malfunction, energy storage state and the voltage signal state of second incoming line cabinet；
Third state signal is exported using mother cabinet；Working condition, the failure of mother cabinet described in the third state characterization
State and energy storage state；
Using PLC module according to the first state signal, second status signal and the third state signal, supervise in real time
The working condition of first incoming line cabinet and second incoming line cabinet is surveyed, and when first incoming line cabinet and second incoming line cabinet
When powering, first incoming line cabinet is controlled respectively to the first load outgoing line cabinet power supply and second incoming line cabinet to described
Second load outgoing line cabinet power supply；Or when first incoming line cabinet can not power, the mother cabinet and described are controlled respectively
Second road alternating current is led to the first load outgoing line cabinet from second incoming line cabinet by the work of two incoming line cabinets；Or
When second incoming line cabinet can not power, the mother cabinet and first incoming line cabinet work are controlled respectively, by described the
Alternating current leads to the second load outgoing line cabinet from first incoming line cabinet all the way.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910365053.6A CN110138076A (en) | 2019-04-30 | 2019-04-30 | One kind two inlet wires, one mother automatic switching control system and method |
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| CN201910365053.6A CN110138076A (en) | 2019-04-30 | 2019-04-30 | One kind two inlet wires, one mother automatic switching control system and method |
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| CN110138076A true CN110138076A (en) | 2019-08-16 |
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