CN108233528A - A kind of power input control device - Google Patents

A kind of power input control device Download PDF

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Publication number
CN108233528A
CN108233528A CN201611155267.3A CN201611155267A CN108233528A CN 108233528 A CN108233528 A CN 108233528A CN 201611155267 A CN201611155267 A CN 201611155267A CN 108233528 A CN108233528 A CN 108233528A
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CN
China
Prior art keywords
phase line
pole double
neutral conductor
throw relay
electrically connected
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Granted
Application number
CN201611155267.3A
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Chinese (zh)
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CN108233528B (en
Inventor
宋奎超
李剑钊
饶俊阳
王凯
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201611155267.3A priority Critical patent/CN108233528B/en
Publication of CN108233528A publication Critical patent/CN108233528A/en
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Publication of CN108233528B publication Critical patent/CN108233528B/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H02J13/00009—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Inverter Devices (AREA)

Abstract

A kind of power input control device, including phase line and neutral conductor detection module, controller, the first phase line, the second phase line, third phase line and the neutral conductor；Each input terminal of the phase line and neutral conductor detection module is one-to-one to be electrically connected to first phase line, second phase line, the third phase line and the neutral conductor；Each input terminal of the controller one-to-one each output terminal for being electrically connected to the phase line and neutral conductor detection module respectively；The phase line exports the wiring parameter of the phase line detected and the neutral conductor to the controller with neutral conductor detection module, and the controller is according to the wiring Parameter analysis and output connection state.The wiring state of phase line and the neutral conductor can be detected using the present invention, it is ensured that wiring is correct.

Description

A kind of power input control device
Technical field
The present invention relates to electric power network technique field more particularly to a kind of power input control devices.
Background technology
The intelligence disposed using advanced metering framework (Advanced Metering Infrastructure, abbreviation AMI) Meter communication network mainly includes meter (meter), main website and communication system.Intelligent electric meter system based on AMI is (hereinafter referred to as " AMI intelligent electric meter systems ") in, power line carrier communication (Power Line Communication, PLC) technology generally should With.Main website carries out data to PLC ammeters by data centralized unit (data concentrating unit, abbreviation DCU) and adopts Collection, management and control etc..Wherein, it is communicated between DCU and PLC ammeters using PLC technology.
During networking, PLC ammeters and DCU can be carried out data transmission by existing power line.The object of power line Reason cabling is tree topology, and transformer is the supply source of a taiwan area, and thus source separates a plurality of power line, every electricity Nodes sharing communication media in the line of force.It is every to ensure since current power industry low-voltage distribution is generally using three-phase four-wire system PLC ammeters can communicate with DCU in one phase, and DCU AC powers are usually three-phase and four-line input.
The construction of AMI intelligent electric meter systems is usually carried out on existing power supply system, and DCU installations and wiring are all Directly borrow existing distribution stent.On the one hand, the aging of distribution stent is serious, lacks and safeguards, exists and is difficult to differentiate between phase line in The situation of property line.On the other hand, it is larger for site operation personnel's enforcement difficulty according to the progress wiring of the sequence of regulation, easily occur The phenomenon that phase line is with neutral conductor wrong.
Invention content
This application provides a kind of power input control device, to detect the wiring state of phase line and the neutral conductor in time.
First aspect provides a kind of power input control device, including：
Phase line and neutral conductor detection module, controller, the first phase line, the second phase line, third phase line and the neutral conductor；
Each input terminal of the phase line and neutral conductor detection module is one-to-one to be electrically connected to first phase line, described the Two phase lines, the third phase line and the neutral conductor；
Each input terminal of the controller is one-to-one respectively to be electrically connected to each of the phase line and neutral conductor detection module A output terminal；
The phase line exports the wiring parameter of the phase line detected and the neutral conductor to institute with neutral conductor detection module Controller is stated, the controller is according to the wiring Parameter analysis and output connection state.
In the first aspect, phase line and neutral conductor detection module in power input control device are set, phase line can be detected With the wiring state of the neutral conductor and wiring state being sent to controller, such as wiring error or phase shortage, controller can export The alarm prompt of phase shortage or wiring error, in order to which maintenance personal has found wiring issue or phase shortage problem in time.
With reference to first aspect, in the first possible embodiment of first aspect, the phase line detects mould with the neutral conductor Block includes the first sub- detection module, the second sub- detection module and the sub- detection module of third；
The first input end of the first sub- detection module is electrically connected to first phase line, the second sub- detection module First input end be electrically connected to second phase line, the first input end of the sub- detection module of third is electrically connected to described Triple line；
Second input terminal of the first sub- detection module, the second input terminal of the second sub- detection module, Yi Jisuo The second input terminal of the sub- detection module of third is stated, is electrically connected in the neutral conductor；
The output terminal of the first sub- detection module is electrically connected to the first input end of the controller, the second son inspection The output terminal for surveying module is electrically connected to the second input terminal of the controller, the output terminal electrical connection of the sub- detection module of third In the third input terminal of the controller.
The possible embodiment of with reference to first aspect the first, in second of possible embodiment of first aspect,
The first sub- detection module includes the first Industrial Frequency Transformer, the first rectifier bridge and first voltage comparator；
The first input end of first Industrial Frequency Transformer is electrically connected to first phase line, first Industrial Frequency Transformer The second input terminal be electrically connected to the neutral conductor；
The first input end of first rectifier bridge is electrically connected to the first output terminal of first Industrial Frequency Transformer, described Second input terminal of the first rectifier bridge is electrically connected to the second output terminal of first Industrial Frequency Transformer；
The first input end of the first voltage comparator is electrically connected to the first output terminal of first rectifier bridge, described Second input terminal of first voltage comparator is electrically connected to the second output terminal of first rectifier bridge；
The output terminal of the first voltage comparator is electrically connected to the first input end of the controller；
First Industrial Frequency Transformer exports the AC power after voltage transformation of first phase line and the neutral conductor To first rectifier bridge, first rectifier bridge is defeated by the DC power supply obtained after AC power progress direct current conversion Go out to the first voltage comparator, the first voltage comparator obtains logic level according to the DC power supply and exports extremely The controller, the controller is according to logic level analysis and output connection state.
Second of possible embodiment with reference to first aspect, in the third possible embodiment of first aspect, institute It states the first sub- detection module and further includes the first transistor, it is first defeated to be electrically connected to first rectifier bridge for the first transistor Outlet；
First rectifier bridge exports DC power supply to the first transistor, and the first transistor is according to the direct current First phase line described in power supply monitoring and the turn-on parameter of the neutral conductor, and the turn-on parameter is exported to the controller； Wherein, the turn-on parameter is first phase line and a kind of wiring parameter of the neutral conductor.
In the third possible embodiment of first aspect, turn-on parameter is obtained by transistor, which can For judging whether phase shortage.
With reference to first aspect, in the 4th kind of possible embodiment of first aspect, the first sub- detection module includes First photo-coupler；
The first input end of first photo-coupler is electrically connected to first phase line, and the of first photo-coupler Two input terminals are electrically connected to the neutral conductor；
The output terminal of first photo-coupler is electrically connected to the first input end of the controller；
The AC power that first phase line and the neutral conductor export is converted to the first arteries and veins by first photo-coupler Rush signal, and by first output of pulse signal to the controller, first pulse signal for first phase line with A kind of wiring parameter of the neutral conductor.
The 4th kind of possible embodiment with reference to first aspect, in the 5th kind of possible embodiment of first aspect, institute Controller is stated according to first pulse signal, the second pulse of the second photo-coupler output in the second sub- detection module In signal and the sub- detection module of the third third photo-coupler output third pulse signal, between failing edge when Difference is compared with predetermined threshold value, analyzes simultaneously output connection state.
With reference to first aspect, the first possible embodiment of first aspect to first aspect the 5th kind of possible embodiment In any one possible embodiment, in the 6th kind of possible embodiment of first aspect, described device further includes phase line Module is adjusted with the neutral conductor；
First power input of the phase line and neutral conductor adjustment module is electrically connected to first phase line；
The second source input terminal of the phase line and neutral conductor adjustment module is electrically connected to second phase line；
The third power input of the phase line and neutral conductor adjustment module is electrically connected to the third phase line；
4th power input of the phase line and neutral conductor adjustment module is electrically connected to the neutral conductor；
The control signal of the phase line and neutral conductor adjustment module is electrically connected to the first output terminal of the controller；
If the controller analyzes the wiring state as abnormality, the controller is to the phase line and the neutral conductor It adjusts module and sends wiring control instruction, the phase line is with neutral conductor adjustment module according to wiring control instruction adjustment Wiring state.
In the 6th kind of possible embodiment of first aspect, phase is also provided in the power input control device Line adjusts module with the neutral conductor, can be in the block by phase line and neutral conductor adjustment mould when finding wiring issue or phase shortage problem Single-pole double-throw switch (SPDT) adjusts wiring in time, effectively improves wiring state regulated efficiency.
The 6th kind of possible embodiment with reference to first aspect, in the 7th kind of possible embodiment of first aspect, institute It states phase line and includes the first son adjustment module, the second son adjustment module and third adjustment module with neutral conductor adjustment module；
The first son adjustment module includes the first single-pole double-throw relay and the second single-pole double-throw relay；
The second son adjustment module includes third single-pole double-throw relay；
The third adjustment module includes the 4th single-pole double-throw relay, the 5th single-pole double-throw relay, the 6th hilted broadsword Double-throw relay and the 7th single-pole double-throw relay；
When the controller determines adjustment wiring state, the controller is sent out to the phase line and neutral conductor adjustment module Send wiring control instruction, the phase line and neutral conductor adjustment module are according to the wiring control instruction from first single-pole double throw Selection target single-pole double-throw relay in relay to the 7th single-pole double-throw relay, and to the target single-pole double throw after Electric appliance carries out being closed control to adjust the wiring state of the phase line and the neutral conductor.
The 7th kind of possible embodiment with reference to first aspect, in the 8th kind of possible embodiment of first aspect, institute It states device and further includes power line carrier unit PLC module, the PLC module includes the first phase line input terminal, the second phase line inputs End, third phase line input terminal and neutral conductor input terminal；
First power input of the phase line and neutral conductor adjustment module includes first single-pole double-throw relay Knife；The second source input terminal of the phase line and neutral conductor adjustment module includes the knife of second single-pole double-throw relay；
If the third power input of the phase line and neutral conductor adjustment module includes the third single-pole double-throw relay Knife, then the 4th power input of the phase line and the neutral conductor adjustment module include the 4th single-pole double-throw relay to institute State the knife of the 7th single-pole double-throw relay；
If the third power input of the phase line and neutral conductor adjustment module includes the 4th single-pole double-throw relay Knife to the 7th single-pole double-throw relay knife, the then phase line and the neutral conductor adjustment module the 4th power input packet Include the knife of the third single-pole double-throw relay；
First contact of first single-pole double-throw relay and the second contact of the 5th single-pole double-throw relay point It is not electrically connected to the first phase line input terminal of the PLC module, the first contact of second single-pole double-throw relay and described Second contact of the 6th single-pole double-throw relay is electrically connected the second phase line input terminal in the PLC module, the third First contact of single-pole double-throw relay and the second contact of the 7th single-pole double-throw relay are electrically connected in the PLC The third phase line input terminal of module；
Second contact of first single-pole double-throw relay, the second contact of second single-pole double-throw relay, institute State the second contact of third single-pole double-throw relay and the first contact of the 4th single-pole double-throw relay be electrically connected in The neutral conductor incoming end of the PLC module；
Second contact of the 4th single-pole double-throw relay, the first contact of the 5th single-pole double-throw relay, institute State the 6th single-pole double-throw relay the first contact and the 7th single-pole double-throw relay the first contact difference it is hanging.
The 7th kind of possible embodiment with reference to first aspect, in the 9th kind of possible embodiment of first aspect, institute It states device and further includes cells D CU interface modules in data set, the DCU interface modules include the first phase line input terminal, the second phase Line input terminal, third phase line input terminal and neutral conductor input terminal；
First power input of the phase line and neutral conductor adjustment module includes first single-pole double-throw relay Knife；The second source input terminal of the phase line and neutral conductor adjustment module includes the knife of second single-pole double-throw relay；
If the third power input of the phase line and neutral conductor adjustment module includes the third single-pole double-throw relay Knife, then the 4th power input of the phase line and the neutral conductor adjustment module include the 4th single-pole double-throw relay to institute State the knife of the 7th single-pole double-throw relay；
If the third power input of the phase line and neutral conductor adjustment module includes the 4th single-pole double-throw relay Knife to the 7th single-pole double-throw relay knife, the then phase line and the neutral conductor adjustment module the 4th power input packet Include the knife of the third single-pole double-throw relay；
First contact of first single-pole double-throw relay and the second contact of the 5th single-pole double-throw relay point Be not electrically connected to the first phase line input terminal of the DCU interface modules, the first contact of second single-pole double-throw relay and Second contact of the 6th single-pole double-throw relay is electrically connected the second phase line input terminal in the DCU interface modules, First contact of the third single-pole double-throw relay and the second contact of the 7th single-pole double-throw relay are electrically connected In the third phase line input terminal of the DCU interface modules；
Second contact of first single-pole double-throw relay, the second contact of second single-pole double-throw relay, institute State the second contact of third single-pole double-throw relay and the first contact of the 4th single-pole double-throw relay be electrically connected in The neutral conductor incoming end of the DCU interface modules；
Second contact of the 4th single-pole double-throw relay, the first contact of the 5th single-pole double-throw relay, institute State the 6th single-pole double-throw relay the first contact and the 7th single-pole double-throw relay the first contact difference it is hanging.
Description of the drawings
Fig. 1 is a kind of transmission line of electricity schematic diagram of three-phase and four-line provided in an embodiment of the present invention；
Fig. 2 is a kind of structure diagram of power input control device provided in an embodiment of the present invention；
Fig. 3 is phase line provided in an embodiment of the present invention and the first structure schematic diagram of neutral conductor detection module；
Fig. 4 is phase line provided in an embodiment of the present invention and the second structure diagram of neutral conductor detection module；
Fig. 5 is the first three-phase vectorcardiogram provided in an embodiment of the present invention；
Fig. 6 is the pulse sequence diagram of the first output provided in an embodiment of the present invention；
Fig. 7 is second of three-phase vectorcardiogram provided in an embodiment of the present invention；
Fig. 8 is the pulse sequence diagram of second provided in an embodiment of the present invention output；
Fig. 9 is the third three-phase vectorcardiogram provided in an embodiment of the present invention；
Figure 10 is the pulse sequence diagram of the third output provided in an embodiment of the present invention；
Figure 11 is the 4th kind of three-phase vectorcardiogram provided in an embodiment of the present invention；
Figure 12 is the pulse sequence diagram of 4th kind provided in an embodiment of the present invention output；
Figure 13 is a kind of flow diagram of pulse train detection method provided in an embodiment of the present invention；
Figure 14 is a kind of flow diagram of wiring state judgment method provided in an embodiment of the present invention；
Figure 15 is the first structure schematic diagram that phase line provided in an embodiment of the present invention adjusts module with the neutral conductor；
Figure 16 is the second structure diagram that phase line provided in an embodiment of the present invention adjusts module with the neutral conductor.
Specific embodiment
Below in conjunction with attached drawing, the embodiment of the present invention is described.
In low-voltage network, transmission line of electricity generally uses three-phase four-wire system.Fig. 1 is provided for one embodiment of the present of invention A kind of three-phase and four-line transmission line of electricity schematic diagram.As shown in Figure 1, figure low and medium voltage distribution network is to the power transmission between user terminal Four circuits are relied primarily on, wherein three phase lines are represented respectively with A, B and C, another is neutral conductor N (if the ring current The neutral ground of side, then the neutral conductor be also referred to as zero curve).A, B, C three-phase alternating-current supply are by three frequencies are identical, amplitude phase Deng the power supply of the exchange potential composition of, phase successively 120 ° of mutual deviation.
In Fig. 1, PLC module and DCU interface modules can be connected on the transmission line of electricity of three-phase and four-line.Wherein, PLC moulds Block can utilize existing power line, and analog or digital signal is carried out high-speed transfer by carrier system, realizes power line carrier, PLC. DCU interface modules are properly termed as the central point that cable converges, such as in power remote meter reading system, ammeter 1 in terminal such as figure, Ammeter 2 ... ammeter n is connected respectively with a phase line and the neutral conductor, and the data that each ammeter is made a copy for are sent by DCU interface modules To the computer or communication equipment of control centre.When carrying out the construction of AMI intelligent electric meter systems, construction personnel is by artificially judging Wiring is carried out it is possible that the phenomenon that phase line and neutral conductor wrong, for example, it is assumed that four lines from top to bottom first in figure Line, Article 2 line, Article 3 line and the fourth line, are represented respectively with A, B, C and N, as shown in Figure 1, actually first bar of line, The wiring that two-lines, Article 3 line and the fourth line are corresponding in turn to is the wiring wrong of A, N, C and B, i.e. N and B, this is possible It will appear the voltage increase at certain equipment such as ammeter both ends, easily ammeter caused to damage.
In the embodiment of the present invention, easily there is wiring error (for example, phase line B and neutral conductor N connect with the neutral conductor for phase line Instead) the problem of, by increasing phase line with neutral conductor detection module to detect the wiring state of phase line and the neutral conductor, and can be further False wiring is adjusted in time by increasing phase line and neutral conductor adjustment module, it is ensured that wiring is correct.
Fig. 2 is referred to, Fig. 2 is the structural representation of a kind of power input control device that one embodiment of the present of invention provides Figure.As shown in Fig. 2, power input control device 100 includes phase line and neutral conductor detection module 110, controller 120, the first phase Line 131, the second phase line 132, third phase line 133 and the neutral conductor 140.
The phase line can be used for whether detection phase line connect exception with the neutral conductor with neutral conductor detection module 110, including First sub- detection module 111, the second sub- detection module 112 and the sub- detection module 113 (Fig. 2 is temporarily not shown) of third are examined per height It surveys module and includes two input terminals and an output terminal.
The first input end of first sub- detection module 111 is electrically connected to the first phase line 131, the second sub- detection module 112 First input end is electrically connected to the second phase line 132, and the first input end of the sub- detection module 113 of third is electrically connected to third phase line 133.Second input terminal of the first sub- detection module 111, the second input terminal and third the inspection of the second sub- detection module 112 The second input terminal of module 113 is surveyed, is electrically connected in the neutral conductor 140.
The controller 120 can be processor or programmable logic device, including first input end, the second input terminal and Third input terminal.Each input terminal of controller 120 is one-to-one respectively to be electrically connected to each of phase line and neutral conductor detection module 110 A output terminal.That is, the output terminal of the first sub- detection module 111 is electrically connected to the first input end of controller 120, the second son detection The output terminal of module 112 is electrically connected to the second input terminal of controller 120, the output terminal electrical connection of the sub- detection module 113 of third In the third input terminal of controller 120.
The phase line and neutral conductor detection module 110 by the wiring parameter of the phase line detected and the neutral conductor export to The controller 120, the controller 120 is according to the wiring Parameter analysis and exports connection status.
Optionally, the power input control device 100 further includes phase line and adjusts module 150 with the neutral conductor, for adjusting The wiring state of phase line and the neutral conductor.The phase line includes the first power input, second source with neutral conductor adjustment module 150 Input terminal, third power input, the 4th power input and control signal, wherein, phase line adjusts module 150 with the neutral conductor The first power input be electrically connected to the first phase line 131, the second source input terminal electricity of phase line and neutral conductor adjustment module 150 The second phase line 132 is connected to, the third power input of phase line and neutral conductor adjustment module 150 is electrically connected to third phase line 133, 4th power input of phase line and neutral conductor adjustment module 150 is electrically connected to the neutral conductor 140；Phase line adjusts module with the neutral conductor 150 control signal is electrically connected to the first output terminal of the controller 120.If controller 120 analyzes the wiring state For abnormality, for example, any one phase line and the neutral conductor 140 it is reversed, then controller 120 adjusts module 150 to phase line and the neutral conductor Wiring control instruction is sent, phase line adjusts the wiring state with neutral conductor adjustment module 150 according to the wiring control instruction.
Power input control device 100 can also include PLC module 160 and/or DCU interface modules 170.PLC module 160 Including the first phase line input terminal 161, the second phase line input terminal 162, third phase line input terminal 163 and a neutral conductor input terminal 164, it is electrically connected in the output terminal of neutral conductor adjustment module 150, communicates for PCL.DCU interface modules 170 include first Phase line input terminal 171, the second phase line input terminal 172, third phase line input terminal 173 and a neutral conductor input terminal 174, it is electric respectively The output terminal of neutral conductor adjustment module 150 is connected to, for connecting DCU.
It is understood that the embodiment of the present invention in power input control device by setting phase line to be detected with the neutral conductor Module can detect the wiring state of phase line and the neutral conductor and wiring state is sent to controller, such as wiring error or lack Phase, controller can export the alarm prompt of phase shortage or wiring error, in order to which maintenance personal has found wiring issue in time or lacks Phase problem.Phase line is also provided in power input control device and adjusts module with the neutral conductor, when discovery wiring issue or is lacked During phase problem, can mould single-pole double-throw switch (SPDT) in the block be adjusted by phase line and the neutral conductor and adjust wiring in time, can effectively improved Wiring state regulated efficiency.
Fig. 3 is referred to, Fig. 3 is the phase line and the first structure of neutral conductor detection module that one embodiment of the present of invention provides Schematic diagram.As shown in figure 3, phase line and neutral conductor detection module 110 include first sub- the first sub- detection module 111 of detection module, Second sub- detection module 112 and the sub- detection module 113 of third.The embodiment of the present invention is other by taking the first sub- detection module 111 as an example Two sub- detection modules refer to the description of the first sub- detection module.
First sub- detection module includes the first Industrial Frequency Transformer 1111, the first rectifier bridge 1112 and first voltage comparator 1113；Second sub- detection module 112 includes the second Industrial Frequency Transformer 1121, the second rectifier bridge 1122 and second voltage comparator 1123；The sub- detection module of third includes 113 third Industrial Frequency Transformers 1131, third rectifier bridge 1132 and tertiary voltage comparator 1133。
First Industrial Frequency Transformer 1111 includes two input terminals and two output terminals, wherein, first Industrial Frequency Transformer 1111 first input end is electrically connected to the first phase line 131, during the second input terminal of the first Industrial Frequency Transformer 1111 is electrically connected to Property line 140.
First rectifier bridge 1112 includes two input terminals and two output terminals, wherein, the first of the first rectifier bridge 1112 is defeated Enter the first output terminal that end is electrically connected to the first Industrial Frequency Transformer 1111, the second input terminal of the first rectifier bridge 1112 is electrically connected to The second output terminal of first Industrial Frequency Transformer 1111.
First voltage comparator 1113 includes two input terminals and an output terminal, wherein, first voltage comparator 1113 First input end be electrically connected to the first output terminal of the first rectifier bridge 1112, the second input terminal of first voltage comparator 1113 The second output terminal of the first rectifier bridge 1112 is electrically connected to, the output terminal of first voltage comparator 1113 is electrically connected to controller 120 first input end.
First Industrial Frequency Transformer 1111 is defeated by the AC power after voltage transformation of the first phase line 131 and the neutral conductor 140 Go out the DC power supply for by the AC power obtained after direct current conversion to the first rectifier bridge 1112, the first rectifier bridge 1112 Output to first voltage comparator 1113, first voltage comparator 1113 obtains logic level according to the DC power supply and exports To controller 120, controller 120 is according to logic level analysis and output connection state.
By taking rated voltage is the power grid of 220V as an example, the input voltage of the first sub- detection module 111 is 220V, first voltage The voltage threshold of comparator 1113 is 8V, and the no-load voltage ratio of the first Industrial Frequency Transformer 1111 is 220/5=44.Normal wiring condition Under, the output of the first Industrial Frequency Transformer 1111 is 5V (alternating voltage virtual value), the DC voltage of corresponding three rectifier bridges output For 5*1.41=7.05V, (i.e. the peak value of the alternating voltage of the first Industrial Frequency Transformer 1111 output, the peak value of alternating voltage is exchange Voltage effective valueTimes, for convenience of value 1.41 is calculated), which is less than reference voltage (voltage threshold).If the One voltage comparator 1113, second voltage comparator 1123 and the output of tertiary voltage comparator 1133 are logical zero, then phase line Wiring parameter with 110 final output of neutral conductor detection module is " 000 ".
It is reversed when wiring error, such as by the second phase line 132 and the neutral conductor 140, then the first sub- 111 He of detection module The sub- input of detection module 113 of third is line voltage, voltage value 380V, the first Industrial Frequency Transformer 1111 and third Industrial Frequency Transformer 1131 output voltages are 380/ (220/5)=8.636V respectively, and corresponding first rectifier bridge 1112 and third rectifier bridge 1132 divide Not Shu Chu DC voltage be 8.636*1.41 ≈ 12.18V, the DC voltage be more than reference voltage (voltage threshold), first electricity It is logic ' 1 ' that pressure comparator 1113 and tertiary voltage comparator 1133 export respectively, and the 132 corresponding second son inspection of the second phase line The output of second voltage comparator 1122 surveyed in module 112 remains as ' 0 '.Phase line and 110 final output of neutral conductor detection module State is " 101 " (wiring parameter).Similarly, if the first phase line 131 and the neutral conductor 140 are reversed, phase line is detected with the neutral conductor The wiring parameter of 110 final output of module is " 011 "；If third phase line 133 and the neutral conductor 140 are reversed, phase line and neutrality The wiring parameter of 110 final output of line detection module is " 110 ".
Optionally, the first sub- detection module 111 can also include the first transistor 1114, and the first transistor 1114 is electrically connected In the first output terminal of the first rectifier bridge 1112, the second sub- detection module 112 can also include 1114 (transistor of second transistor Can be triode), the first transistor 1114 is electrically connected to the first output terminal of the first rectifier bridge 1112, the first sub- detection module 111 can also include the first transistor 1114, and the first transistor 1114 is electrically connected to the first output terminal of the first rectifier bridge 1112. Using the first transistor 1114 and necessary resistance, pile defection can be realized.When the first rectifier bridge 1112 is to first crystal When pipe 1114 exports DC power supply, the first transistor 1114 is according to the first phase line of DC power supply monitoring 131 and the neutral conductor 140 Turn-on parameter export to controller 120；Wherein, the turn-on parameter is the one of the phase line and the wiring parameter of the neutral conductor Kind.
For example, when the first transistor 1114, the collector level state of 1124 and the threeth transistor 1134 of second transistor For " 000 ", i.e. turn-on parameter is " 000 ", then triode is both turned on.If the second transistor without input of the first transistor 1114 1124 and third transistor 1134 have output, then the first transistor 1114 ends, second transistor 1124 and third transistor 1134 conductings, it is " 100 " to correspond to the corresponding turn-on parameter of three transistor turns states, illustrates that the first sub- detection module 111 is defeated Enter phase shortage.
It is understood that the embodiment of the present invention is by phase line and neutral conductor detection module, using Industrial Frequency Transformer, rectification Bridge and voltage comparator, which are realized, detects the wiring state or non-full-phase state of each phase, can find wiring issue in time.
Fig. 4 is referred to, Fig. 4 is the phase line and the second structure of neutral conductor detection module that one embodiment of the present of invention provides Schematic diagram.As shown in figure 4, phase line includes the first sub- detection module 111, the second sub- detection module with neutral conductor detection module 110 112 and the sub- detection module 113 of third, the embodiment of the present invention is by taking the first sub- detection module 111 as an example, other two sub- detection modules With reference to the description of the first sub- detection module.
First sub- detection module 111 includes the first photo-coupler 1111.The first input end electricity of first photo-coupler 1111 The first phase line 131 is connected to, the second input terminal of first photo-coupler 1111 is electrically connected to the neutral conductor 140.
The output terminal of first photo-coupler 1111 is electrically connected to the first input end of controller 120.
The AC power that first phase line 131 and the neutral conductor 140 export is converted to the first pulse by the first photo-coupler 1111 Signal, and by the first output of pulse signal to controller 120, the first pulse signal is the first phase line 131 and the one of the neutral conductor 140 Kind wiring parameter.Controller 120 is according to the first pulse signal, the second photo-coupler 1121 in the second sub- detection module 112, and Third photo-coupler 1131 in three sub- detection modules 113, between the failing edge time difference be compared with predetermined threshold value, analysis simultaneously Output connection state.
In the embodiment of the present invention, using the zero crossing of photo-coupler detection three-phase, it is not turned near zero-crossing point optocoupler, mistake Optocoupler is connected after zero, generates pulse signal stream, and pulse signal cycle is identical with three-phase electricity input frequency.Controller 120 can pass through Detect and three road pulse signal intervals and whether there is, identify phase line and the neutral conductor with the presence or absence of it is reversed and whether phase shortage, control The judgment method that device 120 processed performs is as described below.
(1) input voltage phase of each photo-coupler in the case of analysis wiring is reversed
Fig. 5 is referred to, Fig. 5 is the first three-phase vectorcardiogram that one embodiment of the present of invention provides.Such as figure Shown in 5,WithIdentify the corresponding phase voltage of photo-coupler respectively, three-phase electricity vector expression is：For example, three-phase electric frequency is 50Hz, the period is 20ms is spaced 120 ° between three-phase, then 6.67ms (20/3ms) is spaced in phase.In the case of the normal order of connection, such as Fig. 6 institutes Show, the pulse sequence diagram of the first output provided for one embodiment of the present of invention.
1) if B phases and N phases are reversed, then the input voltage for corresponding to the second photo-coupler 1121 changes, after reversed Three-phase vectorcardiogram is as shown in fig. 7, Fig. 7 is second of three-phase vectorcardiogram that one embodiment of the present of invention provides, specifically such as Under：
(1)
(2)I.e. with former 180 ° of phase difference；
(3)
Assuming that three-phase circuit phase voltageUsing U1、U2And U3Three road light are represented respectively The input voltage of coupler can derive the input voltage of No. three photo-couplers with vector method
Therefore, the input voltage of optocoupler just will appear U in phase2Compare U1Input advanced 30 ° (60 ° -30 °), U3Compare U1It is defeated Enter advanced 60 ° (90 ° -30 °).The pulse sequence diagram of second of output that Fig. 8 is provided for one embodiment of the present of invention, such as Fig. 8 It is shown, P1、P2And P3No. three photo-coupler output signals are represented respectively, wherein, P2With P11.67ms (20/ is spaced in phase 12ms), P3With P13.33ms (20/6ms) is spaced in phase.
2) similarly, when A and N are reversed, then the input voltage for corresponding to the first photo-coupler 1111 changes, and Fig. 9 is this The third three-phase vectorcardiogram that one embodiment of invention provides, as shown in figure 9, can derive three road light with vector method The input voltage of coupler is specific as follows：
(1)U1=-UA180 ° of=U ∠；
(2)U2=UBA∠ -150 ° of=U；
(3)U3=UCA150 ° of=U ∠；
Using U1 as reference, that is, U10 ° of=U ∠,Therefore, light The input voltage of coupling just will appear U in phase2Compare U1Advanced 30 ° are inputted, U3Compare U1Input is -30 ° advanced.Figure 10 is the present invention One embodiment provide the third output pulse sequence diagram, as shown in Figure 10, P1、P2And P3Three road optocouplers are represented respectively Clutch output signal, wherein, P2With P11.67ms (20/12ms), P are spaced in phase3With P1Interval -1.67ms (- 20/ in phase 12ms)。
3) similarly, when C and N are reversed, then the input voltage for corresponding to third photo-coupler 1131 changes, and Figure 11 is this The 4th kind of three-phase vectorcardiogram that one embodiment of invention provides, as shown in figure 11, three tunnels can be derived with vector method The input voltage of photo-coupler is specific as follows：
(1)U1=-UAC∠ -30 ° of=* U；
(2)U2=UBC∠ -90 ° of=* U；
(3)U3=-UC∠ -60 ° of=U；
Using U1 as reference, that is, U10 ° of=U ∠,U3∠ -30 ° of=U.Therefore, the input of optocoupler Voltage just will appear U in phase2Compare U1Input is -60 ° advanced, U3Compare U1Input is -30 ° advanced, and Figure 12 is the reality of the present invention The pulse sequence diagram of 4th kind of output of example offer, as shown in figure 12, P are provided1、P2And P3No. three photo-coupler outputs are represented respectively Signal, wherein, P2With P1Interval -3.33ms (- 20/6ms), P in phase3With P1Interval -1.67ms (- 20/12ms) in phase.
(2) judge the wiring state of each photo-coupler
1) non-full-phase state detects
(it is more than 20ms) within a time-count cycle and detects the first photo-coupler 1111, the second photo-coupler 1121 and third The three road pulse signals that photo-coupler 1131 exports respectively whether there is, if in the presence of, illustrate not phase shortage, otherwise, illustrate phase shortage, it can It is mutually alerted with judging that non-full-phase state is concurrently fallen vacant according to pulse signal.
2) not in the case of phase shortage, wiring state detection is carried out
The pulse signal that first photo-coupler 1111, the second photo-coupler 1121 and third photo-coupler 1131 export respectively Using P1、P2And P3It represents, sets a counter and carry out wiring state detection, specific steps may refer to Figure 13, and Figure 13 is this A kind of flow diagram for pulse train detection method that one embodiment of invention provides, the method may include steps S101~S108.
S101 is started counting up with P1 failing edge flip-flop numbers, records its corresponding failing edge moment as T1；
S102, if detecting P2Corresponding failing edge records the moment as T2；
S103, if detecting P3Corresponding failing edge records the moment as T3；
S104 detects whether to receive P1Second of failing edge performs step S105 if not；If perform step S106；
S105 continues timing；
S106 calculates T in a period respectively1To T2And T1To T3Between time difference, i.e. Δ t1=T2-T1, Δ t2=T3- T1；
S107, by P1Timer is reset, P2/P3Failing edge flag clear；
S108 terminates this detection, opens time-count cycle next time.
Δ t is got according to above-mentioned steps1With Δ t2It, can be by judging Δ t after numerical value1、Δt2Numberical range determines Wiring state, wiring state mainly includes normal wiring, B and N is reversed, A and N is reversed and the reversed four kinds of situations of C and N.
(1) normal wiring：Δt1=6.67ms (20/3ms), Δ t2=(20-6.67) ms=13.33ms；
(2) B and N is reversed：Δt1=1.67ms (20/12ms), Δ t2=(20/6ms) ms=3.33ms；
(3) A and N is reversed：Δt1=(20-1.67) ms=18.33ms, Δ t2=1.67ms；
(4) C and N is reversed：Δt1=3.33ms, Δ t2=1.67ms；
Corresponding judgment threshold is set (such as 6ms to be set according to above-mentioned parameter value<Δt1<7ms, 12.8ms<Δt2<14ms When, it can be determined that wiring is normal), then judge the wiring state of phase line and the neutral conductor, the flow of wiring state judgment method is shown It is intended to the flow of a kind of wiring state judgment method signal shown in Figure 14, Figure 14 is provided for one embodiment of the present of invention Figure, the method may include S201~S210.
S201 starts to judge Δ t1、Δt2Numberical range determines wiring state；
S202 judges Δ t1With Δ t2Whether 6ms is satisfied by<Δt1<7ms, 12.8ms<Δt2<14ms；
S203 determines that wiring state is normal for wiring；
Specifically, if S202 is judged as YES, it is determined that wiring state is normal for wiring, and performs step S210；If 202 sentence It is no to break, then further performs step S204.
S204 judges Δ t1With Δ t2Whether 1ms is satisfied by<Δt1<2ms, 2.8ms<Δt2<4ms；
S205 determines that wiring state is reversed for B and N；
Specifically, if S204 is judged as YES, it is determined that wiring state is reversed for B and N, and performs step S210；If S204 It is judged as NO, then further performs step S206；
S206 judges Δ t1With Δ t2Whether 17.8ms is satisfied by<Δt1<19ms, 1ms<Δt2<2ms；
S207 determines that wiring state is reversed for A and N；
Specifically, if S206 is judged as YES, it is determined that wiring state is reversed for A and N, and performs step S210；If S206 It is judged as NO, then further performs step S208；
S208 judges Δ t1With Δ t2Whether 2.8ms is satisfied by<Δt1<4ms, 1ms<Δt2<2ms；
S209 determines that wiring state is reversed for C and N；
Specifically, if S208 is judged as YES, it is determined that wiring state is reversed for C and N, and performs step S210；If S206 It is judged as NO, then further performs step S210；
S210 terminates to judge.
It is understood that the embodiment of the present invention realizes the wiring state to each phase by photo-coupler and corresponding algorithm Or non-full-phase state detection, wiring issue can be found in time.
Refer to Figure 15~16, Figure 15 is the phase line that provides of one embodiment of the present of invention and the neutral conductor adjusts the of module One structure diagram, Figure 16 are the second structural representation that the phase line that one embodiment of the present of invention provides adjusts module with the neutral conductor Figure.As shown in figures 15-16, phase line includes first son adjustment module the 151, second son adjustment module with neutral conductor adjustment module 150 152 and third adjustment module 153, first son adjustment module 151 include the first single-pole double-throw relay 1511 and the second hilted broadsword Double-throw relay 1512, the second son adjustment module 152 include third single-pole double-throw relay 1521, third adjustment module 153 Including the 4th single-pole double-throw relay 1531, the 5th single-pole double-throw relay 1532, the 6th single-pole double-throw relay 1533 and Seven single-pole double-throw relays 1534.
As shown in figure 15, power input control device 100 further includes PLC module 160, and PLC module 160 includes the first phase line Input terminal 161, the second phase line input terminal 162, third phase line input terminal 163 and neutral conductor input terminal 164, F1, F2 and F3 are represented Fuse.
First power input of phase line and neutral conductor adjustment module 150 is electrically connected to the first phase line 131, wherein, phase line Include the knife of the first single-pole double-throw relay 1511 with the first power input of neutral conductor adjustment module 150.Phase line and neutrality The second source input terminal of line adjustment module 150 is electrically connected to the second phase line 132, wherein, phase line adjusts module 150 with the neutral conductor Second source input terminal include the knife of the second single-pole double-throw relay 1512.That is, the knife of the first single-pole double-throw relay 1511 The first phase line 131 is electrically connected to, the knife of the second single-pole double-throw relay 1512 is electrically connected to the second phase line 132.
The third power input of phase line and neutral conductor adjustment module 150 is electrically connected to third phase line 133, phase line and neutrality 4th power input of line adjustment module 150 is electrically connected to the neutral conductor 140.Including two kinds of situations：The first situation, if phase line Include the knife of third single-pole double-throw relay 1521 with the third power input of neutral conductor adjustment module 150, then phase line is in Property line adjustment module 150 the 4th power input include the 4th single-pole double-throw relay 1531 to the 7th single-pole double throw after The knife of electric appliance 1534, the knife of even the first single-pole double-throw relay 1511 are electrically connected to third phase line 133, then the 4th single-pole double throw The knife of relay 1531 to the 7th single-pole double-throw relay 1534 is electrically connected to the neutral conductor 140；The second situation, if phase line With the knife of the third power input including the 4th single-pole double-throw relay 1531 of neutral conductor adjustment module 150 to the described 7th single The knife of dpdt double-pole double-throw (DPDT) relay 1534, then the 4th power input of phase line and neutral conductor adjustment module 150 is double including third hilted broadsword The knife of relay 1521 is thrown, the knife of even the first single-pole double-throw relay 1511 is electrically connected to the neutral conductor 140, then the 4th hilted broadsword is double The knife for throwing relay 1531 to the 7th single-pole double-throw relay 1534 is electrically connected to third phase line 133.
First contact of the first single-pole double-throw relay 1511 and the second contact of the 5th single-pole double-throw relay 1532 point It is not electrically connected to the first phase line input terminal 161 of PLC module 160, the first contact of the second single-pole double-throw relay 1512 and institute The second contact for stating the 6th single-pole double-throw relay 1533 is electrically connected the second phase line input terminal 162 in PLC module 160, First contact of third single-pole double-throw relay 1521 and the second contact of the 7th single-pole double-throw relay 1534 are electrically connected In the third phase line input terminal 163 of PLC module 160.
Second contact of the first single-pole double-throw relay 1511, the second contact of the second single-pole double-throw relay 1512, Second contact of three single-pole double-throw relays 1521 and the first contact of the 4th single-pole double-throw relay 1531 be electrically connected in The neutral conductor incoming end 164 of PLC module 160.
Second contact of the 4th single-pole double-throw relay 1531, the first contact of the 5th single-pole double-throw relay 1532, First contact of six single-pole double-throw relays 1533 and the first contact difference of the 7th single-pole double-throw relay 1534 are hanging.
The control signal of phase line and neutral conductor adjustment module 150 is electrically connected to the first output terminal of controller 120.
When the controller 120 determines adjustment wiring state, controller 120 adjusts module 150 to phase line and the neutral conductor Wiring control instruction is sent, phase line adjusts module 150 according to the wiring control instruction selection target single-pole double throw with the neutral conductor Relay 151, and the target single-pole double-throw relay 151 be closed controlling and is connect with adjusting the phase line and the neutral conductor Linear state.
As shown in figure 15, such as the second phase line 132 and the neutral conductor 140 are reversed, then need the second single-pole double-throw relay 1511st, the knife of the 4th single-pole double-throw relay 1531 and the 6th single-pole double-throw relay 1533 be switched to it is currently not connected another One contact, to be adjusted to the second phase line 132 and the reversed state of the neutral conductor 140.Single-pole double-throw relay sequence of movement is： The knife of 4th single-pole double-throw relay 1531 is switched to another contact with being currently not connected with, and is allowed to original N phases (practical for B phases) It disconnects；The knife of second single-pole double-throw relay 1511 is switched to another contact with being currently not connected with, and it is (practical to be allowed to original B phases For N phases) it is switched to N input channels；The knife of 6th single-pole double-throw relay 1533 is switched to another contact with being currently not connected with, It is allowed to original N phases (practical for B phases) and is switched to B input channels；Other relays maintain the original state, and can be set between each switching Certain delay time.
Similarly, such as the first phase line 131 and the neutral conductor 140 are reversed, then need the first single-pole double-throw relay the 1511, the 4th The knife of 1531 and the 5th single-pole double-throw relay 1532 of single-pole double-throw relay is switched to and is currently not connected with another tactile respectively Point, to be adjusted to the first phase line 131 and the reversed state of the neutral conductor 140.Above-mentioned handoff procedure can pass through controller 120 Or it is manually performed to control.
It is understood that the embodiment of the present invention passes through phase line and each phase of neutral conductor adjustment module realization PLC module The adjustment of wiring state or non-full-phase state improves the efficiency of wiring adjustment.
As shown in figure 16, power input control device 100 further includes DCU interface modules 170, and DCU interface modules 170 include First phase line input terminal 171, the second phase line input terminal 172, third phase line input terminal 173 and neutral conductor input terminal 174, F1, F2 Fuse is represented with F3.
First power input of phase line and neutral conductor adjustment module 150 is electrically connected to the first phase line 131, wherein, phase line Include the knife of the first single-pole double-throw relay 1511 with the first power input of neutral conductor adjustment module 150.Phase line and neutrality The second source input terminal of line adjustment module 150 is electrically connected to the second phase line 132, wherein, phase line adjusts module 150 with the neutral conductor Second source input terminal include the knife of the second single-pole double-throw relay 1512.That is, the knife of the first single-pole double-throw relay 1511 The first phase line 131 is electrically connected to, the knife of the second single-pole double-throw relay 1512 is electrically connected to the second phase line 132.
The third power input of phase line and neutral conductor adjustment module 150 is electrically connected to third phase line 133, phase line and neutrality 4th power input of line adjustment module 150 is electrically connected to the neutral conductor 140.Including two kinds of situations：The first situation, if phase line Include the knife of third single-pole double-throw relay 1521 with the third power input of neutral conductor adjustment module 150, then phase line is in Property line adjustment module 150 the 4th power input include the 4th single-pole double-throw relay 1531 to the 7th single-pole double throw after The knife of electric appliance 1534, the knife of even the first single-pole double-throw relay 1511 are electrically connected to third phase line 133, then the 4th single-pole double throw The knife of relay 1531 to the 7th single-pole double-throw relay 1534 is electrically connected to the neutral conductor 140；The second situation, if phase line With the knife of the third power input including the 4th single-pole double-throw relay 1531 of neutral conductor adjustment module 150 to the described 7th single The knife of dpdt double-pole double-throw (DPDT) relay 1534, then the 4th power input of phase line and neutral conductor adjustment module 150 is double including third hilted broadsword The knife of relay 1521 is thrown, the knife of even the first single-pole double-throw relay 1511 is electrically connected to the neutral conductor 140, then the 4th hilted broadsword is double The knife for throwing relay 1531 to the 7th single-pole double-throw relay 1534 is electrically connected to third phase line 133.
First contact of the first single-pole double-throw relay 1511 and the second contact of the 5th single-pole double-throw relay 1532 point It is not electrically connected to the first phase line input terminal 171 of DCU interface modules 170, the first contact of the second single-pole double-throw relay 1512 It is defeated that the second phase line in DCU interface modules 170 is electrically connected with the second contact of the 6th single-pole double-throw relay 1533 Enter end 172, the first contact of third single-pole double-throw relay 1521 and the second contact of the 7th single-pole double-throw relay 1534 point It is not electrically connected to the third phase line input terminal 173 of DCU interface modules 170.
Second contact of the first single-pole double-throw relay 1511, the second contact of the second single-pole double-throw relay 1512, Second contact of three single-pole double-throw relays 1521 and the first contact of the 4th single-pole double-throw relay 1531 be electrically connected in The neutral conductor incoming end 174 of DCU interface modules 170.
Second contact of the 4th single-pole double-throw relay 1531, the first contact of the 5th single-pole double-throw relay 1532, First contact of six single-pole double-throw relays 1533 and the first contact difference of the 7th single-pole double-throw relay 1534 are hanging.
The control signal of phase line and neutral conductor adjustment module 150 is electrically connected to the first output terminal of controller 120.
When the controller 120 determines adjustment wiring state, the controller 120 is adjusted to the phase line and the neutral conductor Module 150 sends wiring control instruction, and the phase line selects mesh with neutral conductor adjustment module 150 according to the wiring control instruction Mark single-pole double-throw relay 151, and to the target single-pole double-throw relay 151 carry out be closed control with adjust the phase line with The wiring state of the neutral conductor.
As shown in figure 16, it as PLC module 160 and the neutral conductor 140 are reversed, then needs the second single-pole double-throw relay 1511st, the knife of the 4th single-pole double-throw relay 1531 and the 6th single-pole double-throw relay 1533 be switched to it is currently not connected another One contact, to be adjusted to the second phase line 132 and the reversed state of the neutral conductor 140.The actuating of relay sequence be：4th hilted broadsword The knife of double-throw relay 1531 is switched to another contact with being currently not connected with, and is allowed to original N phases (practical for B phases) and disconnects；The The knife of two single-pole double-throw relays 1511 is switched to another contact with being currently not connected with, and is allowed to original B phases (practical for N phases) and cuts Change to N input channels；The knife of 6th single-pole double-throw relay 1533 is switched to another contact with being currently not connected with, and is allowed to original N phases (practical is B phases) are switched to B input channels；Other relays maintain the original state, and certain prolong can be set between each switching When the time.
Similarly, such as the first phase line 131 and the neutral conductor 140 are reversed, then need the first single-pole double-throw relay the 1511, the 4th The knife of 1531 and the 5th single-pole double-throw relay 1532 of single-pole double-throw relay is switched to and is currently not connected with another tactile respectively Point, to be adjusted to the first phase line 131 and the reversed state of the neutral conductor 140.Above-mentioned handoff procedure can pass through controller 120 Or it is manually performed to control.
It is understood that the embodiment of the present invention adjusts module by phase line with the neutral conductor realizes each of DCU interface modules The adjustment of the wiring state or non-full-phase state of phase improves the efficiency of wiring adjustment.
In the present embodiment, the connection between the circuit that each module and module include can be directly connected to, It can be the indirect electric connection by some interfaces, device, module, component or circuit.
In short, the foregoing is merely the preferred embodiment of technical solution of the present invention, it is not intended to limit the present invention's Protection domain.It is all within principle of the present invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention Within protection domain.

Claims (10)

1. a kind of power input control device, which is characterized in that including phase line and neutral conductor detection module, controller, the first phase Line, the second phase line, third phase line and the neutral conductor；
Each input terminal of the phase line and neutral conductor detection module is one-to-one to be electrically connected to first phase line, second phase Line, the third phase line and the neutral conductor；
Each input terminal of the controller is one-to-one respectively to be electrically connected to each defeated of the phase line and neutral conductor detection module Outlet；
The phase line exports the wiring parameter of the phase line detected and the neutral conductor to the control with neutral conductor detection module Device processed, the controller is according to the wiring Parameter analysis and output connection state.
2. the apparatus according to claim 1, which is characterized in that the phase line includes the first son with neutral conductor detection module and examines Survey module, the second sub- detection module and the sub- detection module of third；
The first input end of the first sub- detection module is electrically connected to first phase line, and the of the second sub- detection module One input terminal is electrically connected to second phase line, and the first input end of the sub- detection module of third is electrically connected to the third phase Line；
Second input terminal of the first sub- detection module, the second input terminal of the second sub- detection module and described Second input terminal of three sub- detection modules, is electrically connected in the neutral conductor；
The output terminal of the first sub- detection module is electrically connected to the first input end of the controller, the second son detection mould The output terminal of block is electrically connected to the second input terminal of the controller, and the output terminal of the sub- detection module of third is electrically connected to institute State the third input terminal of controller.
3. the apparatus of claim 2, which is characterized in that
The first sub- detection module includes the first Industrial Frequency Transformer, the first rectifier bridge and first voltage comparator；
The first input end of first Industrial Frequency Transformer is electrically connected to first phase line, and the of first Industrial Frequency Transformer Two input terminals are electrically connected to the neutral conductor；
The first input end of first rectifier bridge is electrically connected to the first output terminal of first Industrial Frequency Transformer, and described first Second input terminal of rectifier bridge is electrically connected to the second output terminal of first Industrial Frequency Transformer；
The first input end of the first voltage comparator is electrically connected to the first output terminal of first rectifier bridge, and described first Second input terminal of voltage comparator is electrically connected to the second output terminal of first rectifier bridge；
The output terminal of the first voltage comparator is electrically connected to the first input end of the controller；
First Industrial Frequency Transformer exports the AC power after voltage transformation of first phase line and the neutral conductor to institute State the first rectifier bridge, first rectifier bridge by the DC power supply that the AC power obtained after direct current conversion export to The first voltage comparator, the first voltage comparator obtain logic level according to the DC power supply and export to described Controller, the controller is according to logic level analysis and output connection state.
4. device according to claim 3, which is characterized in that the first sub- detection module further includes the first transistor, The first transistor is electrically connected to the first output terminal of first rectifier bridge；
First rectifier bridge exports DC power supply to the first transistor, and the first transistor is according to the DC power supply The turn-on parameter of first phase line and the neutral conductor is monitored, and the turn-on parameter is exported to the controller；Wherein, The turn-on parameter is first phase line and a kind of wiring parameter of the neutral conductor.
5. the apparatus of claim 2, which is characterized in that the first sub- detection module includes the first photo-coupler；
The first input end of first photo-coupler is electrically connected to first phase line, and the second of first photo-coupler is defeated Enter end and be electrically connected to the neutral conductor；
The output terminal of first photo-coupler is electrically connected to the first input end of the controller；
The AC power that first phase line and the neutral conductor export is converted to the first pulse letter by first photo-coupler Number, and by first output of pulse signal to the controller, first pulse signal is first phase line and neutrality A kind of wiring parameter of line.
6. device according to claim 5, which is characterized in that the controller is described according to first pulse signal The in the second pulse signal of the second photo-coupler output and the sub- detection module of the third in second sub- detection module The third pulse signal of three photo-couplers output, between the failing edge time difference be compared with predetermined threshold value, analyze and export and connect Linear state.
7. according to claim 1-6 any one of them devices, which is characterized in that described device further includes phase line and neutral conductor tune Mould preparation block；
First power input of the phase line and neutral conductor adjustment module is electrically connected to first phase line；
The second source input terminal of the phase line and neutral conductor adjustment module is electrically connected to second phase line；
The third power input of the phase line and neutral conductor adjustment module is electrically connected to the third phase line；
4th power input of the phase line and neutral conductor adjustment module is electrically connected to the neutral conductor；
The control signal of the phase line and neutral conductor adjustment module is electrically connected to the first output terminal of the controller；
If the controller analyzes the wiring state as abnormality, the controller is adjusted to the phase line and the neutral conductor Module sends wiring control instruction, and the phase line adjusts the wiring with neutral conductor adjustment module according to the wiring control instruction State.
8. device according to claim 7, which is characterized in that the phase line includes the first son with neutral conductor adjustment module and adjusts Mould preparation block, the second son adjustment module and third adjustment module；
The first son adjustment module includes the first single-pole double-throw relay and the second single-pole double-throw relay；
The second son adjustment module includes third single-pole double-throw relay；
The third adjustment module includes the 4th single-pole double-throw relay, the 5th single-pole double-throw relay, the 6th single-pole double throw Relay and the 7th single-pole double-throw relay；
When the controller determines adjustment wiring state, the controller connects to the phase line and neutral conductor adjustment module transmission Line traffic control instructs, and the phase line and the neutral conductor adjustment module are according to the wiring control instruction from the first single-pole double throw relay Selection target single-pole double-throw relay in device to the 7th single-pole double-throw relay, and to the target single-pole double-throw relay It carries out being closed control to adjust the wiring state of the phase line and the neutral conductor.
9. device according to claim 8, which is characterized in that described device further includes power line carrier unit PLC module, The PLC module includes the first phase line input terminal, the second phase line input terminal, third phase line input terminal and neutral conductor input terminal；
First power input of the phase line and neutral conductor adjustment module includes the knife of first single-pole double-throw relay；Institute The second source input terminal for stating phase line and the neutral conductor adjustment module includes the knife of second single-pole double-throw relay；
If the third power input of the phase line and neutral conductor adjustment module includes the knife of the third single-pole double-throw relay, Then the 4th power input of the phase line and the neutral conductor adjustment module includes the 4th single-pole double-throw relay to described the The knife of seven single-pole double-throw relays；
If the third power input of the phase line and neutral conductor adjustment module includes the knife of the 4th single-pole double-throw relay To the knife of the 7th single-pole double-throw relay, then the 4th power input of the phase line and the neutral conductor adjustment module includes institute State the knife of third single-pole double-throw relay；
First contact of first single-pole double-throw relay and the second contact of the 5th single-pole double-throw relay are electric respectively It is connected to the first phase line input terminal of the PLC module, the first contact of second single-pole double-throw relay and the described 6th Second contact of single-pole double-throw relay is electrically connected the second phase line input terminal in the PLC module, the third hilted broadsword First contact of double-throw relay and the second contact of the 7th single-pole double-throw relay are electrically connected in the PLC module Third phase line input terminal；
Second contact of first single-pole double-throw relay, the second contact of second single-pole double-throw relay, described Second contact of three single-pole double-throw relays and the first contact of the 4th single-pole double-throw relay are electrically connected in described The neutral conductor incoming end of PLC module；
Second contact of the 4th single-pole double-throw relay, the first contact of the 5th single-pole double-throw relay, described First contact of six single-pole double-throw relays and the first contact of the 7th single-pole double-throw relay difference are hanging.
10. device according to claim 8, which is characterized in that described device further includes cells D CU interface moulds in data set Block, it is defeated that the DCU interface modules include the first phase line input terminal, the second phase line input terminal, third phase line input terminal and the neutral conductor Enter end；
First power input of the phase line and neutral conductor adjustment module includes the knife of first single-pole double-throw relay；Institute The second source input terminal for stating phase line and the neutral conductor adjustment module includes the knife of second single-pole double-throw relay；
If the third power input of the phase line and neutral conductor adjustment module includes the knife of the third single-pole double-throw relay, Then the 4th power input of the phase line and the neutral conductor adjustment module includes the 4th single-pole double-throw relay to described the The knife of seven single-pole double-throw relays；
If the third power input of the phase line and neutral conductor adjustment module includes the knife of the 4th single-pole double-throw relay To the knife of the 7th single-pole double-throw relay, then the 4th power input of the phase line and the neutral conductor adjustment module includes institute State the knife of third single-pole double-throw relay；
First contact of first single-pole double-throw relay and the second contact of the 5th single-pole double-throw relay are electric respectively It is connected to the first phase line input terminal of the DCU interface modules, the first contact of second single-pole double-throw relay and described Second contact of the 6th single-pole double-throw relay is electrically connected the second phase line input terminal in the DCU interface modules, described First contact of third single-pole double-throw relay and the second contact of the 7th single-pole double-throw relay are electrically connected in institute State the third phase line input terminal of DCU interface modules；
Second contact of first single-pole double-throw relay, the second contact of second single-pole double-throw relay, described Second contact of three single-pole double-throw relays and the first contact of the 4th single-pole double-throw relay are electrically connected in described The neutral conductor incoming end of DCU interface modules；
Second contact of the 4th single-pole double-throw relay, the first contact of the 5th single-pole double-throw relay, described First contact of six single-pole double-throw relays and the first contact of the 7th single-pole double-throw relay difference are hanging.
CN201611155267.3A 2016-12-14 2016-12-14 Power input control device Active CN108233528B (en)

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