CN209267182U - A kind of subway low-voltage distribution system of band PLC backup power automatic switching function - Google Patents
A kind of subway low-voltage distribution system of band PLC backup power automatic switching function Download PDFInfo
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- CN209267182U CN209267182U CN201920172597.6U CN201920172597U CN209267182U CN 209267182 U CN209267182 U CN 209267182U CN 201920172597 U CN201920172597 U CN 201920172597U CN 209267182 U CN209267182 U CN 209267182U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of subway low-voltage distribution systems of band PLC backup power automatic switching function, including I section of bus, II section of bus, I section of three stage load master switch, II section of three stage load master switch, SCADA monitoring platform and PLC programmable logic controller (PLC), the input terminal of the PLC programmable logic controller (PLC) is connect with I section of bus, II section of bus, I section of three stage load master switch and II section of three stage load master switch respectively, and the output end of PLC programmable logic controller (PLC) is connect with managed switches.The utility model realizes the prepared auto restart of system by PLC programmable logic controller (PLC), reduce the use number of relay, actual relay is replaced by PLC programmable logic controller (PLC) internal virtual relay, line arrangement is simple, and PLC prepared auto restart control program high reliablity, stability are good；Each transmission line circuit telemetering, remote signals has been concentrated to upload by communication manager simultaneously, communication manager is connect using cable with managed switches, may be implemented to transmit at a distance.
Description
Technical field
The utility model relates to a kind of distribution system, the subway low-voltage distribution system of especially a kind of band PLC backup power automatic switching function
System, belongs to low pressure transmission & distribution electro-technical field.
Background technique
Subway is the abbreviation of underground railway, and as a kind of independent rail transit system, it is not by surface road situation
Influence, can be run according to designed capacity, thus quickly, safety, cosily transport passenger.Subway is high-efficient, pollution-free, can
It requires with realizing large conveying quantity, there is good social benefit, becoming big city in now improves the first choice of traffic conditions.Distribution
Reliability requirement is especially prominent in metro industry.Once having a power failure, subway can not be safely operated, and will lead to the paralysis of urban transportation.
As shown in Figure 1, subway low-voltage distribution canonical system is constituted: it generallys use typical double inlet wires one and gets in touch with structure, wherein
1QF, 2QF are incoming switch, and 3QF is interconnection switch.Under normal operation, incoming switch 1QF and 2QF close a floodgate, and respectively I sections
With II sections of bussed supplies；When wherein one group of primary voltage falls (by taking 1TF Voltage Drop as an example), need to disconnect 1QF.Throw mother away
On line after three stage loads, it is closed interconnection switch 3QF, transformer 2TF is simultaneously I, II sections of bussed supplies at this time.Therefore, in order to subtract
Few bus section, busbar section power-off time, guarantee low voltage electrical equipment can trouble-free operation, the low-voltage distribution system of subway require with it is standby from
Throw function.So-called prepared auto restart is exactly when incoming switch because interconnection switch is closed automatically when Voltage Drop is threaded off.For existing
The composition of subway low-voltage distribution system have following defects that
1) backup power automatic switching function of existing subway low-voltage distribution system is all to be overlapped by multiple relays to complete, not only
Have the defects that complex circuit due to more than the relay quantity of use, and also usually draws in practical applications because of fault
Hair relay burn out make contact occur melting welding, lead to problems such as relay contacts bad, the prepared auto restart in distribution system can
It is poor by property and stability；
2) in order to guarantee reliability of operation and to avoid artificial fault, used in subway it is various with electronic computer at
Reason technology replaces artificial, mechanical, electrical organization of driving, equipment operation and safety to protect by the various automation equipments of core
Card system.Simultaneously in order to ensure the safety of subway circulation, through being adopted frequently with SCADA system as integrated data in subway construction
Collection and monitoring control system, with to main transformer station, traction substation, the remote control of stepdown substation device systems, remote signalling and telemetering,
The electrification situation of distribution substation's all devices is grasped in real time.In the prior art, the telemetering amount of plastic housing transmission line circuit: electric current, voltage, it is distant
Traffic breaker division state, failure, fire-fighting cut non-signal and PLC are all used to upload to backstage, upload higher cost.
Utility model content
The goal of the invention of the utility model is, in view of the above-mentioned problems, the subway for providing a kind of band PLC backup power automatic switching function is low
It is press-fitted electric system, the prepared auto restart of low-voltage distribution system, control route letter are realized by the PLC programmable logic controller (PLC) of setting
Single, reliability of operation and stability are improved.
In order to achieve the above objectives, the technical scheme adopted by the utility model is
A kind of subway low-voltage distribution system of band PLC backup power automatic switching function, including I section of bus, II section of bus, I section of three-level are negative
Lotus master switch, II section of three stage load master switch, busbar breaker, three-level load breaker and for monitor I section of bus and II
The SCADA monitoring platform of electric component operating condition on section bus, the busbar breaker are mounted in mother cabinet, and described three
Stage load breaker is mounted in three-level loading switch cabinet, and the electric component on I section of bus and II section of bus includes inlet wire
Cabinet instrument, mother cabinet instrument, transformer temperature controller, three-level loading switch cabinet instrument, active power filtering equipment and several go out
Line cabinet is mounted on several instrument on each outgoing line cabinet, and the subway low-voltage distribution system further includes PLC programmable logic
Controller, the input terminal of the PLC programmable logic controller (PLC) are always opened with I section of bus, II section of bus, I section of three stage load respectively
Pass is connected with II section of three stage load master switch, and the output end of PLC programmable logic controller (PLC) passes through managed switches and SCADA
Monitoring platform connection.
Preferably, the subway low-voltage distribution system further includes Fiber splice tray, managed switches and 2
A communication manager, one of communication manager is arranged on I section of bus, another communication manager is arranged in II section of bus
On；
The input terminal of the managed switches by cable respectively with communication manager, active power filtering equipment, transformer
Temperature controller is connected with PLC programmable logic controller (PLC)；
The input terminal of the Fiber splice tray is connected by optical patchcord and the output end of managed switches, fused fiber splice
The output end of box is connect by optical fiber with SCADA monitoring platform；
Each instrument in the incoming line cabinet instrument, mother cabinet instrument, three-level loading switch cabinet instrument and the outgoing line cabinet
It is connect with communication manager by Shielded Twisted Pair, for by the control information and status information of instrument each in electric component
It uploads in real time.
In above scheme, preferably, the subway low-voltage distribution system further includes the first discrete magnitude I/O mould
Block and the second discrete magnitude I/O module,
The input terminal of the first discrete magnitude I/O module is connect with the remote signalling amount on three-level loading switch cabinet, and first is discrete
The output end of amount I/O module is connect after connecting with PLC programmable logic controller (PLC) with managed switches, negative for receiving three-level
The remote signalling amount signal of lotus breaker；
The input terminal of the second discrete magnitude I/O module is connect with the remote signalling amount on mother cabinet, the second discrete magnitude I/O module
Output end connect with PLC programmable logic controller (PLC) after connect with managed switches, for receiving the distant of busbar breaker
Traffic signal；
The first discrete magnitude I/O module and the second discrete magnitude I/O module are respectively engaged with PLC programmable logic control
On device processed.
In above scheme, preferred embodiment, the first discrete magnitude I/O module and the second discrete magnitude I/O are acted on
Module is the PLC discrete magnitude expensive chip that model is TM3DI16.
In above scheme, preferably, the programmable logic controller (PLC) is that model is TM221CE40T.
In above scheme, the preferred embodiment, the communication manager is installed in incoming line cabinet, and the communication pipe
The model NISE-606B of reason machine.
In above scheme, preferably, alternate serial port mould is provided on the input terminal of the communication manager
Block.
Preferably, alternate serial port module is provided on the input terminal of the communication manager.
Due to the adoption of the above technical scheme, the utility model has the following beneficial effects:
1. the utility model passes through I section of bus, II section of bus, I section of three stage load master switch and II section of three stage load is total
All control information and status information of switch are directly inputted loaded in the PLC programmable logic controller (PLC) in mother cabinet, are realized
The prepared auto restart of low-voltage distribution system.Due to reducing the use number of relay using PLC programmable logic controller (PLC),
Cost is not only reduced, also makes the control route of system simpler.
2. when the utility model PLC programmable logic controller (PLC) prepared auto restart, can reduce relay using the same of number
When, actual relay is also replaced by PLC programmable logic controller (PLC) internal virtual relay, while passing through input letter
Number, directly judge whether to start prepared auto restart, reduces intermediate step, can accurately provide delay time, reduce error
Rate, high reliablity, stability are good.
3. the utility model is by using communication manager by the telemetry parameter of instrument (such as electric current, voltage and open circuit
The division state of device, malfunction fire-fighting cut non-state also or switch the telemetered signals such as combined floodgate, failure) by specially leading to
Road is uploaded to managed switches, finally by managed switches and Fiber splice tray communication transfer to SCADA monitoring platform
On, telemetry intelligence (TELINT) upload is at low cost, and transmission speed is fast.
Detailed description of the invention
Fig. 1 is the line construction schematic diagram of subway low-voltage distribution system in the prior art.
Fig. 2 is that the network of I section of bus in a kind of subway low-voltage distribution system of band PLC backup power automatic switching function of the utility model is opened up
Flutter schematic diagram.
Fig. 3 is the hardware topology figure of the PLC programmable logic controller (PLC).
1, SCADA monitoring platform, 2, optical fiber, 3, Fiber splice tray, 4, managed switches, 5, communication manager, 6, net
Line, 7, active power filtering equipment, 8, transformer temperature controller, 9, PLC programmable logic controller (PLC), 10, three-level loading switch cabinet
Instrument, 11, incoming line cabinet instrument, 12, mother cabinet instrument, 13, outgoing line cabinet, 14, alternate serial port module, 15, Shielded Twisted Pair.
Specific embodiment
Clear, complete description is carried out to the technical solution of the utility model below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.In addition, following institute
Technical characteristic involved in the utility model different embodiments of description as long as they do not conflict with each other can phase
Mutually combine.
The specific implementation of the utility model is further illustrated in the following with reference to the drawings and specific embodiments.
As shown in Fig. 2, for the structural topology figure of I section of bus access system, (II section of bus and its electric component be not in figure
It draws).A kind of subway low-voltage distribution system of band PLC backup power automatic switching function, including I section of bus, II section of bus, I section of three stage load
Master switch, II section of three stage load master switch, busbar breaker, three-level on-load switch breaker and for monitor I section of bus and
The SCADA monitoring platform 1 of electric component operating condition on II section of bus.The busbar breaker is mounted in mother cabinet 12.
The three-level on-load switch breaker is mounted in three-level loading switch cabinet.
Electric component on I section of bus and II section of bus includes incoming line cabinet instrument 11, mother cabinet instrument 12, transformer
Temperature controller 8, three-level loading switch cabinet instrument 10, active power filtering equipment 7 and several outgoing line cabinets 13.Each outgoing line cabinet 13
On be mounted on several instrument.Wherein, the incoming line cabinet instrument 11 is expressed as being equipped in incoming line cabinet for acquiring telemetering letter
Number instrument, in the present embodiment, the incoming line cabinet instrument 11 is specifically I section of incoming line cabinet instrument.On I section of bus and II section of bus
It corresponds to and a transformer temperature controller 8 is installed, in the present embodiment, the transformer temperature controller 8 is I section of transformer temperature
Controller.Similarly, three-level loading switch cabinet instrument 10 is I section of three-level loading switch cabinet instrument.The active power filtering equipment 7 is specific
For I section of active power filtering equipment.The outgoing line cabinet 13 is I section of outgoing line cabinet, and the metered quantity installed on the outgoing line cabinet 13 is 13
It is a.It is of course also possible to be other numbers, do not limit uniquely.It is useful that the mother cabinet instrument 12 is expressed as installation in mother cabinet
In the instrument of acquisition telemetered signal, I section of bus and II section of bus share a mother cabinet.
The subway low-voltage distribution system further includes Fiber splice tray 3, managed switches 4 and 2 communication manager 5,
One of communication manager 5 is arranged on I section of bus, another communication manager 5 is arranged on II section of bus.The present embodiment
In, the communication manager 5 is I section of communication manager.Correspondingly, I section of communication manager is installed on I section of incoming line cabinet 11
It is interior, and the model NISE-606B of the communication manager 5.In order to improve communication manager 5 remote indication instrument access number
It measures, may be provided with alternate serial port module 14 on the input terminal of the communication manager 5.
The input terminal of the Fiber splice tray 3 is connect by optical patchcord with the output end of managed switches 4, optical fiber welding
The output end for connecing box 3 is connect by optical fiber 2 with SCADA monitoring platform 1.
As shown in figure 3, the subway low-voltage distribution system further includes PLC programmable logic controller (PLC) 9, the first discrete magnitude I/
O module and with the second discrete magnitude I/O module.
The input terminal of the programmable logic controller (PLC) 9 respectively with I section of bus, II section of bus, I section of three stage load master switch
It is connected with II section of three stage load master switch.The output end of the programmable logic controller (PLC) 9 is connected to after managed switches 4
On SCADA monitoring platform 1.Wherein, the concrete model of the programmable logic controller (PLC) 9 is TM221CE40T.
The input terminal of the first discrete magnitude I/O module is connect with the remote signalling amount on three-level loading switch cabinet, and first is discrete
The output end of amount I/O module is connect after connecting with PLC programmable logic controller (PLC) 9 with managed switches 4, for receiving three-level
The remote signalling amount signal of load breaker.The input terminal of the second discrete magnitude I/O module is connect with the remote signalling amount on mother cabinet, the
The output end of two discrete magnitude I/O modules is connect with managed switches 4 again after connecting with PLC programmable logic controller (PLC) 9, is used for
Receive the remote signalling amount signal of busbar breaker.
The first discrete magnitude I/O module and the second discrete magnitude I/O module are respectively engaged with PLC programmable logic control
On device 9 processed.In the present embodiment, the first discrete magnitude I/O module and the second discrete magnitude I/O module are that model is
The PLC discrete magnitude expensive chip of TM3DI16.
The input terminal of the managed switches 4 by cable 6 respectively with communication manager 5, active power filtering equipment 7, become
Depressor temperature controller 8 is connected with the prepared auto restart control module of PLC programmable logic controller (PLC) 9.Exchanged with the management type
What machine 4 connected has I section of communication manager, II section of communication manager, I section of active power filtering equipment, II section of active power filtering equipment, I section
Transformer temperature controller, II section of transformer temperature controller and the PLC programmable logic controller (PLC) 9.
It is each in the incoming line cabinet instrument 11, mother cabinet instrument 12, three-level loading switch cabinet instrument 10 and outgoing line cabinet 13
Instrument passes through Shielded Twisted Pair 15 and connect with communication manager 5, for by the control information of instrument each in electric component and
Status information uploads in real time.
When the utility model is used, the output winding of PLC programmable logic controller (PLC) 9 successively controls I section of bus, II section
The conjunction of bus, I section of three stage load master switch and II section of three stage load master switch circuit switching point.In detection process, the PLC can
Programmed logic controller 9 judges whether that low-voltage occurs, and whether judge output relay according to the state of each input signal
It needs to act, realizes the prepared auto restart switching of two buses, one contacted system.I.e. whether PLC programmable logic controller (PLC) 9 judges bus
Decompression, if decompression, three stage load master switch of related incoming switch and separating brake of threading off confirms inlet wire and three stage load master switch
It after separating brake, is closed bus connection switch (i.e. busbar breaker), completes the prepared auto restart of subway low-voltage distribution system, system operation more may be used
It leans on and stablizes.
When operating normally, 2 communication managers 5 summarize by using RS485 interface by each electric component instrument system
Telemetry intelligence (TELINT) on table be uploaded in managed switches 4；The managed switches 4 and Fiber splice tray 3 are good at logical
News transmission, the telemetry intelligence (TELINT) that communication manager 5 is sent is transmitted on SCADA monitoring platform 1, treatment effeciency and transmission are improved
Accuracy.
Above description is the detailed description for the preferable possible embodiments of the utility model, but embodiment is not limited to
The patent claim of the utility model, the same changes or modifications completed under technical spirit suggested by all the utility model
Change, should belong to the covered the scope of the patents of the utility model.
Claims (7)
1. a kind of subway low-voltage distribution system of band PLC backup power automatic switching function, including I section of bus, II section of bus, I section of three stage load
Master switch, II section of three stage load master switch, busbar breaker, three-level load breaker and for monitoring I section of bus and II section
The SCADA monitoring platform of electric component operating condition on bus, the busbar breaker are mounted in mother cabinet, the three-level
Load breaker is mounted in three-level loading switch cabinet, and the electric component on I section of bus and II section of bus includes incoming line cabinet
Instrument, mother cabinet instrument, transformer temperature controller, three-level loading switch cabinet instrument, active power filtering equipment and several outlets
Cabinet is mounted on several instrument on each outgoing line cabinet, it is characterised in that: the subway low-voltage distribution system further includes PLC
Programmable logic controller (PLC),
The input terminal of the PLC programmable logic controller (PLC) respectively with I section of bus, II section of bus, I section of three stage load master switch and
II section of three stage load master switch connection, the output end of PLC programmable logic controller (PLC) are monitored by managed switches and SCADA
Platform connection.
2. a kind of subway low-voltage distribution system of band PLC backup power automatic switching function according to claim 1, it is characterised in that: institute
Stating subway low-voltage distribution system further includes Fiber splice tray, managed switches and 2 communication managers, one of communication pipe
Reason machine is arranged on I section of bus, another communication manager is arranged on II section of bus；
The input terminal of the managed switches by cable respectively with communication manager, active power filtering equipment, transformer temperature
Controller is connected with PLC programmable logic controller (PLC)；
The input terminal of the Fiber splice tray is connected by optical patchcord and the output end of managed switches, Fiber splice tray
Output end is connect by optical fiber with SCADA monitoring platform；
Each instrument in the incoming line cabinet instrument, mother cabinet instrument, three-level loading switch cabinet instrument and the outgoing line cabinet is logical
It crosses Shielded Twisted Pair to connect with communication manager, for the control information of instrument each in electric component and status information is real-time
It uploads.
3. a kind of subway low-voltage distribution system of band PLC backup power automatic switching function according to claim 2, it is characterised in that: also
Including the first discrete magnitude I/O module and the second discrete magnitude I/O module,
The input terminal of the first discrete magnitude I/O module is connect with the remote signalling amount on three-level loading switch cabinet, the first discrete magnitude I/O
The output end of module is connect after connecting with PLC programmable logic controller (PLC) with managed switches, disconnected for receiving three stage loads
The remote signalling amount signal of road device；
The input terminal of the second discrete magnitude I/O module is connect with the remote signalling amount on mother cabinet, the second discrete magnitude I/O module it is defeated
Outlet is connect after connecting with PLC programmable logic controller (PLC) with managed switches, for receiving the remote signalling amount of busbar breaker
Signal；
The first discrete magnitude I/O module and the second discrete magnitude I/O module are respectively engaged with PLC programmable logic controller (PLC)
On.
4. a kind of subway low-voltage distribution system of band PLC backup power automatic switching function according to claim 3, it is characterised in that: institute
It states the first discrete magnitude I/O module and the second discrete magnitude I/O module is the PLC discrete magnitude expansion core that model is TM3DI16
Piece.
5. a kind of subway low-voltage distribution system of band PLC backup power automatic switching function according to claim 1, it is characterised in that: institute
It is TM221CE40T that programmable logic controller (PLC), which is stated, as model.
6. a kind of subway low-voltage distribution system of band PLC backup power automatic switching function according to claim 2, it is characterised in that: institute
It states communication manager to be installed in incoming line cabinet, and the model NISE-606B of the communication manager.
7. a kind of subway low-voltage distribution system of band PLC backup power automatic switching function according to claim 2, it is characterised in that: institute
It states and is provided with alternate serial port module on the input terminal of communication manager.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172597.6U CN209267182U (en) | 2019-01-31 | 2019-01-31 | A kind of subway low-voltage distribution system of band PLC backup power automatic switching function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172597.6U CN209267182U (en) | 2019-01-31 | 2019-01-31 | A kind of subway low-voltage distribution system of band PLC backup power automatic switching function |
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| Publication Number | Publication Date |
|---|---|
| CN209267182U true CN209267182U (en) | 2019-08-16 |
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ID=67584955
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920172597.6U Active CN209267182U (en) | 2019-01-31 | 2019-01-31 | A kind of subway low-voltage distribution system of band PLC backup power automatic switching function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112751333A (en) * | 2019-10-30 | 2021-05-04 | 株洲中车机电科技有限公司 | Intelligent low-voltage switch cabinet for rail transit and control method |
-
2019
- 2019-01-31 CN CN201920172597.6U patent/CN209267182U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112751333A (en) * | 2019-10-30 | 2021-05-04 | 株洲中车机电科技有限公司 | Intelligent low-voltage switch cabinet for rail transit and control method |
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