CN108631446A - A kind of contact net power supply network control method - Google Patents
A kind of contact net power supply network control method Download PDFInfo
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- CN108631446A CN108631446A CN201810609736.7A CN201810609736A CN108631446A CN 108631446 A CN108631446 A CN 108631446A CN 201810609736 A CN201810609736 A CN 201810609736A CN 108631446 A CN108631446 A CN 108631446A
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- 238000000034 method Methods 0.000 title claims abstract description 44
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- 230000004224 protection Effects 0.000 claims description 23
- 230000005611 electricity Effects 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 17
- 238000012423 maintenance Methods 0.000 claims description 14
- 238000003745 diagnosis Methods 0.000 claims description 9
- 230000010365 information processing Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 238000003032 molecular docking Methods 0.000 claims 1
- 230000000875 corresponding effect Effects 0.000 description 13
- 238000010276 construction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000011835 investigation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 241001269238 Data Species 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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Classifications
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- H02J13/0062—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- 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
- H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
Abstract
The invention discloses a kind of contact net power supply network control methods, and when needing power supply, main control module receives rising bow signal, control pantograph rising bow, and display module shows the arciform state of lifting of pantograph, contact net voltage, electric current.After receiving main circuit breaker close command, master control module controls main circuit breaker is closed, and display module shows main circuit breaker state.Contact net single-phase alternating current is depressured by high-tension transformer, and after main circuit breaker is closed, bow is dropped if detecting failure, and when detection contact net is normal, main control module synchronizes locking phase to contact net voltage, adjusts the open signal of switching device in the first rectifier.Inverter exports three-phase alternating current by frequency conversion, and in detection output three-phase alternating current, normally closure output switchs and externally exports three-phase alternating current main control module afterwards.The technical issues of present invention can solve existing diesel-electric set electric supply system and cause seriously to pollute to environment, and generation much noise and unit capacity cannot be met the requirements.
Description
Technical field
The present invention relates to Railway Electric fields, are supplied more particularly, to a kind of contact net applied to railway engineering working truck
Electric electric power network control method.
Background technology
Currently, with the continuous growth of China railways total kilometrage, railroad maintenance workload also increasingly increases, large-scale maintainer
Tool has become the main power of China railways maintenance, has tens mechanized construction teams to be active in ten thousand li of railway lines daily
On.The operation in the wild throughout the year of these construction teams, war severe cold, bucket heat, are the development of China railways cause, especially in recent years
The speed-raising of railway is made that huge contribution.In order to solve the problem concerning life of railroad maintenance fleet in the wild, each road bureau is all vehicle
Team is equipped with the train of camping for having mechanized construction operation function.These camp trains based on passenger train vehicle transformation and
Come, is provided between sleeping berth, the facilities such as kitchen and dining room.In the prior art, CN205890886U, CN106080625A,
The patents such as CN202389375U, CN101386305B, CN201712613U, CN201283866Y, CN101386305A provide
The structure of this train of camping.
The train of camping of mechanized construction team is typically all to take electricity from bus stop on the way, is responsible for by water power section, and place
The time that train is sought in each station stop is all very short, and water power section must frequently arrive construction team and connect electricity.And these stops on the way
It stands typically small station, the transformer capacity on small station is all smaller, and no normal direction train of camping provides the electric energy for comparing large capacity,
So train of camping all carries the diesel generating set provided for oneself.Many times, especially in summer and use in winter air-conditioning
When generally all from diesel generating set to train power supply of camping.Massive diesel-fuel is consumed by diesel generating set power generation, simultaneously
Environment is caused seriously to pollute, the noise that generating set is sent out also causes interference to construction team member and surrounding resident.In addition, bavin
The capacity of oily generating set is also little, and many electrical equipments such as electromagnetic stove, electric shower-bath, refrigerator etc. can not all use on vehicle.
However, the electrified mileage of China railways is all being increased with very high speed every year at present, each main line is substantially electrified,
Electric railway from now on will be more and more, if often camping in the mechanized construction of electrified section operation is equipped with one on train
The system that set directly can take electricity from contact net can obtain great Rong no matter the train that can make to camp is parked in where from contact net
The electric energy of amount fundamentally solves various drawbacks of diesel generating set to avoid water power section from frequently connecing the trouble of electricity.
In the prior art, there is presently no the technical solutions for being directed to contact net power supply progress network-control.Cause
This, researches and develops a kind of contact net power supply network control method, to ensure railway engineering working truck contact net power supply system
Safe and reliable operation becomes current technical problem urgently to be resolved hurrily.
Invention content
In view of this, the purpose of the present invention is to provide a kind of contact net power supply network control method, it is existing to solve
There is diesel-electric set electric supply system to cause seriously to pollute to environment, generates much noise and unit capacity and cannot meet and want
The technical issues of asking.
In order to achieve the above-mentioned object of the invention, the present invention specifically provides a kind of contact net power supply network control method
Technic relization scheme, a kind of contact net power supply network control method, for controlling contact net powersupply system,
Contact net powersupply system accesses single phase ac by pantograph from contact net, is inputted by main circuit breaker, high-tension fuse
High-tension transformer, and be depressured through the high-tension transformer, then the first rectifier is entered by input switch, through first rectification
After device rectification and filter filtering, output DC voltage supplies inverter, and the inverter exports PWM three-phase modulations voltages, then
Three-phase alternating voltage is exported by isolating transformer.Contact net power supply network control system includes charging system, master control mould
Block and display module.This approach includes the following steps：
When the contact net powersupply system needs power supply, main control module receives rising bow signal, control it is described by
Pantograph executes rising bow operation, and display module shows the arciform state of lifting of pantograph, and shows the voltage of contact net, electric current；
After the close command for receiving the main circuit breaker, the master control module controls main circuit breaker is closed, described aobvious
Show that module shows the closed state of main circuit breaker；
The single-phase alternating current of the contact net is depressured by high-tension transformer, after the main circuit breaker is closed, master control
Module detect contact net voltage, electric current, if exist include exchange overvoltage, overcurrent or it is under-voltage including abnormal conditions when, control
The main circuit breaker disconnects, and the pantograph executes drop bow operation, and corresponding failure cause is sent to the display module
It is shown and is recorded；
After the voltage of the detection contact net, electric current normal condition continue setting time, the main control module is to contact
The voltage of net synchronizes locking phase, is carried out according to the middle dc voltage value of feedback between first rectifier and inverter
PID arithmetic adjusts the open signal of switching device in first rectifier, the friendship that the high-tension transformer secondary side is exported
The direct current that stream is rectified into setting amplitude supplies the inverter, and the display module shows middle dc voltage, intermediate dc
Electric current；
The inverter exports three-phase alternating current by frequency conversion, and the display module shows three-phase output voltage simultaneously, institute
It states main control module and is normally closed the output switch afterwards in detection output three-phase alternating current, and externally export three-phase alternating current；
In the contact net powersupply system power supply process, the contact net powersupply system have it is any abnormal or
Failure, the main control module send corresponding block control pulse, disconnect the main circuit breaker, execute pantograph drop bow operation,
The display module carries out corresponding indicating fault and record.
Preferably, the contact net power supply network control system further includes charging system, and the charging system includes
Second rectifier, charging module, accumulator, overcurrent contactor, over-pressed contactor.The method is further comprising the steps of：
The high-tension transformer output single-phase exchange is filled at direct current for the accumulator through second rectifier rectification
Electricity bends device and master control system output power supply from the accumulator to the lifting；
The charging module controls derailing switch in second rectifier according to the output voltage value of feedback of the accumulator
The open signal of part, to adjust the charging voltage and charging current of the accumulator；
The charging module can be set between second rectifier and accumulator overcurrent contactor, cross press contacts
Device is controlled；
The charging module carries out A/D conversions to the output voltage and charging current of the accumulator, for the master control
Module is controlled, and is shown for the display module；
The charging module obtains the over-voltage and over-current of the accumulator and under-voltage by calculating input signal
Warning message, and execute corresponding protection act.
Preferably, the method is further comprising the steps of：
After the contact net powersupply system collects the high pressure of contact net, the charging module is according to accumulator
Output voltage value of feedback controls the open signal of switching device in second rectifier, to adjust the charging electricity of the accumulator
Pressure and charging current；
The display module shows the charging voltage and charging current of the accumulator, when the charging voltage of the accumulator
When being higher than overcurrent value higher than overpressure value or charging current, the charging module blocks the control of switching device in second rectifier
Pulse processed, stopping charge to the accumulator；
When the output voltage of the accumulator is in under-voltage condition, it is externally defeated that the charging module limits the accumulator
Go out voltage, forbids the lifting bow device operation, prompt charging overvoltage, overcurrent or under-voltage fault on the display module and carry out
Record.
Preferably, between the charging system, main control module and display module using CAN bus distributed control network into
Row communication.
Preferably, the main control module is to high AC voltage, the high-voltage ac current of input first rectifier, institute
State middle dc voltage, intermediate DC circuit and the inverter ac three-phase output between the first rectifier and inverter
In every phase voltage, AC three-phase output in every phase current progress A/D conversions, so that the main control module is controlled, and
It is shown for the display module.
Preferably, the main control module becomes the arciform state of lifting of the pantograph, the make and break state of main circuit breaker, isolation
The exchange output state of depressor, the over-temperature condition of high-tension transformer, the chain state of hyperbaric chamber door are monitored, for the master
Control module is controlled, and is shown for the display module.
Preferably, the main control module bends drive signal, the lifting to lifting bow device output pantograph rising bow or drop
Bow device controls the pantograph by cylinder and carries out rising bow or drop bow operation, and the main control module output main circuit breaker break-make is driven
Dynamic signal is switched on or switched off for controlling the main circuit breaker, and the main control module output inverter start and stop drive signal is for controlling
Make the inverter startup or stopping.The isolating transformer switchs output three-phase alternating voltage, the master control mould by exporting
Block also controls signal to output switch output driving.
Preferably, the main control module synchronizes locking phase to the voltage of contact net, according to first rectifier with it is inverse
The middle dc voltage value of feedback become between device carries out PID arithmetic, and adjust switching device in first rectifier opens letter
Number, the AC rectification of high-tension transformer secondary side output is supplied into inverter at the direct current of setting amplitude.The master control
Module is by being calculated including high pressure over-voltage and over-current, DC over-voltage overcurrent, AC three-phase output overvoltage input signal
Warning message including overcurrent, high-tension transformer excess temperature, fault of converter, network communication failure, and it is dynamic to execute corresponding protection
Make.
Preferably, the display module shows following data, including but not limited to：
A) high AC voltage, the high-voltage ac current of first rectifier, first rectifier and inverter it
Between middle dc voltage, intermediate DC circuit, charging voltage, charging current and the inverter ac of the accumulator
Every phase current in every phase voltage, AC three-phase output in three-phase output；
B) the arciform state of lifting of the pantograph, the make and break state of the make and break state of main circuit breaker, output switch；Input institute
The high-voltage alternating for stating the first rectifier is over-pressed, normal, under-voltage, high-pressure and overflowing, normal, accumulator charging is over-pressed, normal, under-voltage,
Overcurrent, middle dc voltage is over-pressed, normal, under-voltage, overcurrent, in the inverter ac three-phase output per phase it is over-pressed, normal,
Under-voltage, overcurrent；
C) over-temperature condition of the high-tension transformer, hyperbaric chamber door folding condition, pantograph atmospheric pressure state, contact net
Power supply network control system communication fault message.
Preferably, overvoltage, the overcurrent of the contact net power supply network control system are set by the display module
Protection value, pid parameter.Display data is sent to communication module by the display module, and the communication module passes through wireless transmission
Network sends data to terrestrial information processing and maintenance system, to carry out remote monitoring and remote fault diagnosis.
By implementing the technical solution for the contact net power supply network control method that aforementioned present invention provides, have as follows
Advantageous effect：
The present invention is directed to contact net powersupply system, it is proposed that the technical side of contact net power supply network control method
Case uses ripe CAN bus technology, controlled using the rectification of network control system realization contact net powersupply system,
System protection and fault diagnosis control, real-time, strong antijamming capability can detect contact net high-voltage electricity piezoelectricity in real time
Stream, DC voltage and current, three-phase output voltage electric current.Detecting the failures such as chain, the transformer overtemperature of over-voltage and over-current, high-pressure door
When, the corresponding virtual protection of the carry out such as pantograph, main circuit breaker can be controlled at once, it is ensured that high-pressure system works normally and personnel's peace
Entirely, and fault message can be sent to terrestrial information processing and maintenance system to carry out fault diagnosis and investigation.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is the schematic block circuit diagram for the contact net powersupply system that the present invention is based on；
Fig. 2 is a kind of network structure block diagram of specific embodiment of contact net power supply network control method of the present invention；
Fig. 3 is a kind of main control module signal flow diagram of specific embodiment of contact net power supply network control method of the present invention
One；
Fig. 4 is a kind of main control module signal flow diagram of specific embodiment of contact net power supply network control method of the present invention
Two；
Fig. 5 is the structure group of charging system in a kind of specific embodiment of contact net power supply network control method of the present invention
At block diagram；
In figure：1- arresters, 2- pantographs, 3- contact nets, 4- cylinders, 5- lifting bow devices, 6- main circuit breakers, 7- high pressures
Fuse, 8- input switches, 9- high-voltage mutual inductors, 10- high-tension transformers, 11- current transformers, 12- watt-hour meter measuring devices, 13-
First rectifier, 14- filters, 15- inverters, 16- sinusoidal filters, 17- isolating transformers, 18- output switches, 19- connect
Net-fault power supply network control system, 20- master control systems, 21- charging systems, 22- main control modules, 23- display modules, 24-
Communication module, the processing of 25- terrestrial informations and maintenance system, the second rectifiers of 26-, 27- charging modules, 28- accumulators, 29- mistakes
Flow contactor, 30- overvoltage contactors, the hyperbaric chambers 31- door, 32- ground protections switch.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention carries out clear, complete description.Obviously, described embodiment is only
Only it is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
All other embodiment that art personnel are obtained without creative efforts belongs to the model that the present invention protects
It encloses.
As shown in attached drawing 1 to attached drawing 5, the specific implementation of contact net power supply network control method of the present invention is given
Example, the invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in Fig. 1, contact net powersupply system includes：The pantograph 2 that is sequentially connected, main circuit breaker 6, high-voltage fuse
Disconnected device 7, high-tension transformer 10, input switch 8, the first rectifier 13, filter 14, inverter 15, isolating transformer 17.Contact
Net powersupply system accesses single phase ac by pantograph 2 from contact net 1, is inputted by main circuit breaker 6, high-tension fuse 7
High-tension transformer 10, and be depressured through high-tension transformer 10, then the first rectifier 13 is entered by input switch 8, through the first rectification
After 13 rectification of device and filter 14 filter, output DC voltage supplies inverter 15, and inverter 15 exports PWM three-phase modulations electricity
Pressure, then three-phase alternating voltage is exported by isolating transformer 17.As a kind of typical specific embodiment of the present invention, railroad maintenance
The contact net powersupply system of train of camping is received the single-phase voltage of 25KV by pantograph 2 from contact net 3, through high-tension transformer
10 are depressured to 800V, after 13 semi-controlled bridge rectifier of the first rectifier and inductance, capacitor filtering, output 600V DC voltages supply
(three-phase) inverter 15, inverter 15 export PWM (Pulse Width Modulation, the abbreviation of pulsewidth modulation) three-phase modulations
Voltage, then by 17 output frequency 50hz of isolating transformer meet civil standards three-phase 380V and 220V AC voltage supply iron
Safeguard train use of camping in road.Pantograph 2 is also connected to ground by arrester 1 simultaneously.Lifting bow device 5 is by being attached thereto
Cylinder 4 controls pantograph 2 and carries out lifting bow operation.
In order to solve the control problem of contact net powersupply system, the embodiment of the present invention proposes a kind of based on CAN bus
The technical solution of the contact net power supply network control method of communication, contact net powersupply system are single-phase by contact net 3
25KV alternating currents are converted into 380V/220V three-phase alternating currents, are used as household electricity supply railroad maintenance train of camping, it is ensured that
Contact net powersupply system can be safe and reliable operation, control system safeguards that simple, the degree of modularity is high.Contact net supplies
Electric electric power network control method can realize the control of rising bow drop bow, voltage commutation, the overvoltage of contact net powersupply system simultaneously
Overcurrent protection, the functions such as under-voltage protection, accumulator charging, remote monitoring and fault diagnosis, it can be ensured that contact net power supply
Safe and reliable operation, to ensure contact net safety.
As shown in Fig. 2, a kind of embodiment of contact net power supply network control system, it is electric for powering to contact net
Source system is controlled.Contact net power supply network control system 19 includes master control system 20 and charging system 21, master control system
System 20 further comprises main control module 22 and display module 23.Main control module 22 is used to complete the rectification control of the first rectifier 13
And contact net powersupply system interlock protection, monitoring Primary Component (including pantograph 2, main circuit breaker 6, high-tension transformer 10,
First rectifier 13, inverter 15) state, and communicated with display module 23.Charging system 21 is for completing accumulator
Charging rectifier controls and charging interlock protection, and working power, and and display module are provided for lifting bow device 5 and master control system 20
23 are communicated.Display module 23 be used for show and monitor come self-charging system 21, main control module 22 send data, record therefore
Hinder data and adjustment contact net powersupply system protection value, realizing GPS, (Global Positioning System, the whole world are fixed
The abbreviation of position system) functions such as positioning and remote monitoring.Charging system 21 (be specially charging module 27), main control module 22 and aobvious
Show and further uses CAN (ControllerArea Network, the abbreviation of controller local area network) bus point between module 23
Cloth control network is communicated.Contact net power supply network control system 19 is using Field Bus CAN as digital communication
Carrier throughout by CAN network by entire control system forms a complete control network.CAN bus control mode
Have the characteristics that networking, digitlization, modularization, network control system are not only adapted to advanced network technical development, and
And product development cycle is short, reliability is high.
A kind of specific embodiment of contact net power supply network control method, contact net powersupply system pass through by electricity
Bow 2 accesses single phase ac from contact net 1, inputs high-tension transformer 10 by main circuit breaker 6, high-tension fuse 7, and through high voltage variable
Depressor 10 is depressured, then enters the first rectifier 13 by input switch 8, is filtered through 13 rectification of the first rectifier and filter 14
Afterwards, output DC voltage supplies inverter 15, and inverter 15 exports PWM three-phase modulations voltages, then defeated by isolating transformer 17
Go out three-phase alternating voltage.Contact net power supply network control system 19 includes charging system 21, main control module 22 and display mould
Block 23.This approach includes the following steps：
When contact net powersupply system needs power supply, main control module 22 receives rising bow signal, and control pantograph 2 is held
Row rising bow operates, and display module 23 shows the arciform state of lifting of pantograph 2, and shows the voltage of contact net 3, electric current.It is receiving
To after the close command of main circuit breaker 6, main control module 22 controls main circuit breaker 6 and is closed, and display module 23 shows main circuit breaker 6
Closed state.(25kV) single-phase AC voltage of contact net 3 is depressured (transformation 800V) by high-tension transformer 10, main disconnected
After road device 6 is closed, main control module 22 detects voltage, the electric current of contact net 3, if exist include exchange over-pressed, overcurrent or it is under-voltage
When interior abnormal conditions, control main circuit breaker 6 disconnects, and pantograph 2 executes drop bow operation, and corresponding failure cause is sent to
Display module 23 is shown and is recorded.Continue setting time (such as 15S) in the voltage of detection contact net 3, electric current normal condition
Afterwards, main control module 22 synchronizes locking phase to the voltage of contact net 3, according to the centre between the first rectifier 13 and inverter 15
DC voltage value of feedback carries out PID (abbreviation of Proportional-Integrating-Differentiation) operation, adjusts
The open signal of switching device in whole first rectifier 13, by 10 secondary side of high-tension transformer output (800V) AC rectification at
(600V) direct current for setting amplitude supplies inverter 15, and display module 23 shows middle dc voltage, intermediate DC circuit.It is inverse
Become device 15 and (220V) three-phase alternating current is exported by frequency conversion, display module 23 shows three-phase output voltage, main control module 22 simultaneously
It is normally closed output switch 18 afterwards in detection output three-phase alternating current, and externally output (220V) three-phase alternating current is used as life
Electricity supply railroad maintenance camp train use.In contact net powersupply system power supply process, contact net powersupply system
There are any exception or failure, main control module 22 to send corresponding block control pulse, disconnect main circuit breaker 6, execute pantograph 2 and drop
Bow operation, display module 23 carry out corresponding indicating fault and record.
As shown in Fig. 5, charging system 21 further comprises the second rectifier 26, charging module 27, accumulator 28, overcurrent
Contactor 29, over-pressed contactor 30.Charging system 21 has A/D conversion functions, to the charging voltage of accumulator 28 and can fill
Electric current carries out A/D conversions, is controlled and is shown for system.Contact net power supply network control method further includes：High pressure
10 output single-phase of transformer exchanges, and it is the charging of accumulator 28 to be rectified into direct current through the second rectifier 26, from accumulator 28 to lifting
Bend device 5 and 20 output power supply of master control system.Charging module 27 is according to the output voltage value of feedback of accumulator 28 control the
The open signal of switching device in two rectifiers 26, to adjust the charging voltage and charging current of accumulator 28, control charging electricity
It is pressed between 110V-125V, charging current is between 0A-10A.Charging system 21 also has digital output driving function, fills
Electric module 27 can control overcurrent contactor 29, the over-pressed contactor 30 being set between the second rectifier 26 and accumulator 28
System.Charging module 27 carries out A/D conversions to the output voltage and charging current of accumulator 28 simultaneously, so that main control module 22 carries out
Control, and shown for display module 23.Charging module 27 by the virtual protection algorithm of setting to correlated inputs signal into
Row calculates, and obtains the over-voltage and over-current and undervoltage warning information of accumulator 28, and execute corresponding protection act.It is opened in output
Ground protection switch 32 is connected between the three-phase output end and ground of pass 18, charging module 27 acquires the number of ground protection switch 32
Word switch amount signal.
Contact net power supply network control method further includes：When contact net powersupply system collects contact net 3
After high pressure, charging module 27 according to the output voltage value of feedback of accumulator 28 control the second rectifier 26 in switching device it is open-minded
Signal, to adjust the charging voltage (between 110V-125V) and charging current of accumulator 28 (between 0A-10A).Show mould
Block 23 shows the charging voltage and charging current of accumulator 28, when the charging voltage of accumulator 28 is higher than overpressure value or charging current
When higher than overcurrent value, charging module 27 block the second rectifier 26 in switching device control pulse, stop to accumulator 28 into
Row charging.When the output voltage of accumulator 28 is in under-voltage condition, charging module 27 limits 28 external output voltage of accumulator,
Forbid the compressor operation of lifting bow device 5, charging overvoltage, overcurrent or under-voltage fault are prompted on display module 23 and is remembered
Record.
As shown in Fig. 3, main control module 22 to input the first rectifier 13 high AC voltage, high-voltage ac current,
Middle dc voltage 600V, intermediate dc 600V electric currents and inverter 15 between first rectifier 13 and inverter 15 are exchanged
Every phase current in every phase voltage, AC three-phase output in three-phase output carries out A/D conversions (analog/digital conversion), for
Main control module 22 is controlled, and is shown for display module 23.Main control module 22 is to the arciform state of the lifting of pantograph 2, master
The make and break state of breaker 6, the exchange output state of isolating transformer 17, the over-temperature condition of high-tension transformer 10, hyperbaric chamber door
31 chain state is monitored, and so that main control module 22 is controlled, and is shown for display module 23.Contact net is powered
Power-supply system further includes cylinder 4 and lifting bow device 5, and main control module 22 exports pantograph rising bow or drop bow to lifting bow device 5
Drive signal, lifting bow device 5 controls the progress rising bow of pantograph 2 by cylinder 4 or drop bow operation, the output master of main control module 22 are disconnected
Road device break-make drive signal is switched on or switched off for controlling main circuit breaker 6,22 output inverter start and stop drive signal of main control module
It is started or stoped for controlling inverter 15.Isolating transformer 17 exports three-phase alternating voltage, master control mould by exporting switch 18
Block 22 also controls signal to output 18 output driving of switch.Main control module 22 acquires the synchronizing signal of high-tension transformer 10 to contact
The voltage of net 3 synchronizes locking phase, is carried out according to the middle dc voltage value of feedback between the first rectifier 13 and inverter 15
PID arithmetic adjusts the open signal of switching device in the first rectifier 13, and the exchange that 10 secondary side of high-tension transformer is exported is whole
Flow into the direct current supply inverter 15 of setting amplitude.Main control module 22 is by being calculated including high pressure input signal
Over-voltage and over-current, DC over-voltage overcurrent, AC three-phase output overvoltage overcurrent, high-tension transformer excess temperature, fault of converter, network communication
Warning message including failure, and execute corresponding protection act.After main control module 22 collects rising bow switching signal, pass through drive
The dynamic rising bow actuating of relay makes the rising bow valve of lifting bow device 5 obtain electric or dead electricity.The acquisition of main control module 22 high-voltage mutual inductor 9,
The signal of current transformer 11, watt-hour meter measuring device 12 are carried out according to the data of collected high-voltage mutual inductor 9, current transformer 11
Watt metering.
As shown in Fig. 4, display module 23 shows following data, including but not limited to：
A) high AC voltage, the high-voltage ac current of the first rectifier 13, between the first rectifier 13 and inverter 15
Middle dc voltage, intermediate DC circuit, the charging voltage of accumulator 28, charging current and 15 AC three-phase of inverter are defeated
The analog datas such as every phase current in every phase voltage for going out, AC three-phase (A, B, C three-phase) output.
B) the arciform state of lifting of pantograph 2, the make and break state of main circuit breaker 6, the make and break state for exporting switch 18.Input the
The high-voltage alternating of one rectifier 13 is over-pressed, normal, under-voltage, high-pressure and overflowing, normal, accumulator 28 charge it is over-pressed, normal, under-voltage,
Overcurrent, middle dc voltage is over-pressed, normal, under-voltage, overcurrent, per phase in 15 AC three-phase of inverter (A, B, C three-phase) output
Over-pressed, normal, under-voltage, overcurrent.
C) over-temperature condition of high-tension transformer 10, the folding condition of hyperbaric chamber door 31, the atmospheric pressure state of pantograph 2, contact
19 communication failure information of net power supply network control system.
Display module 23 is additionally operable to that the overvoltage of contact net power supply network control system 19, overcurrent protection value, PID is arranged
Parameter.Contact net power supply network control system 19 further includes communication module (as used 4G modules) 24 and terrestrial information processing
And display data is sent to communication module 24 by maintenance system 25, display module 23, communication module 24 passes through wireless-transmission network
Terrestrial information processing and maintenance system 25 are sent data to, to carry out remote monitoring and remote fault diagnosis.
By implementing the technical solution of the contact net power supply network control method of specific embodiment of the invention description, energy
Enough have the following technical effects：
The contact net power supply network control method of specific embodiment of the invention description is directed to contact net power supply system
System, it is proposed that the technical solution of contact net power supply network control method uses ripe CAN bus technology, utilizes net
Network control system realizes rectification control, system protection and the fault diagnosis control of contact net powersupply system, real-time, resists
Interference performance is strong, can detect contact net high tension voltage electric current, DC voltage and current, three-phase output voltage electric current in real time.
When detecting the failures such as chain, the transformer overtemperature of over-voltage and over-current, high-pressure door, the progress such as pantograph, main circuit breaker can be controlled at once
Corresponding virtual protection, it is ensured that high-pressure system works normally and personnel safety, and can fault message be sent to terrestrial information
Processing and maintenance system are to carry out fault diagnosis and investigation.
The present invention is directed to contact net powersupply system, proposes contact net power supply network control method scheme, adopts
With ripe CAN bus technology, real-time, strong antijamming capability can detect contact net high tension voltage electric current, straight in real time
Galvanic electricity current voltage, three-phase output voltage electric current, when detecting the failures such as chain, the transformer overtemperature of over-voltage and over-current, high-pressure door, energy
The corresponding virtual protections of carry out such as pantograph, main circuit breaker are controlled at once, it is ensured that high-pressure system works normally and personnel safety, and
Fault message can be sent to terrestrial information processing and maintenance system to carry out fault diagnosis and investigation.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention has been disclosed with preferred embodiment as above, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from the Spirit Essence and technical solution of the present invention, all using in the methods and techniques of the disclosure above
Appearance makes many possible changes and modifications to technical solution of the present invention, or is revised as the equivalent embodiment of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention is made to the above embodiment any simple according to the technical essence of the invention
Modification, equivalent replacement, equivalence changes and modification still fall within the range of technical solution of the present invention protection.
Claims (10)
1. a kind of contact net power supply network control method, for controlling contact net powersupply system, feature
Be, contact net powersupply system by pantograph (2) from contact net (1) access single phase ac, by main circuit breaker (6),
High-tension fuse (7) inputs high-tension transformer (10), and is depressured through the high-tension transformer (10), then passes through input switch (8)
Into the first rectifier (13), after the first rectifier (13) rectification and filter (14) filtering, output DC voltage supplies
Inverter (15) is given, the inverter (15) exports PWM three-phase modulations voltages, then passes through three intersection of isolating transformer (17) output
Galvanic electricity pressure；Contact net power supply network control system (19) includes main control module (22) and display module (23)；This method packet
Include following steps：
When the contact net powersupply system needs power supply, main control module (22) receives rising bow signal, control it is described by
Pantograph (2) executes rising bow operation, and display module (23) shows the arciform state of lifting of pantograph (2), and shows the electricity of contact net (3)
Pressure, electric current；
After the close command for receiving the main circuit breaker (6), main control module (22) the control main circuit breaker (6) is closed,
The display module (23) shows the closed state of main circuit breaker (6)；
The single-phase alternating current of the contact net (3) is depressured by high-tension transformer (10), and the main circuit breaker (6) is closed
Afterwards, voltage, the electric current of main control module (22) detection contact net (3), if exist include exchange over-pressed, overcurrent or it is under-voltage including it is different
When reason condition, the main circuit breaker (6) disconnection is controlled, the pantograph (2) executes drop bow operation, and by corresponding failure cause
The display module (23) is sent to be shown and recorded；
After the voltage of the detection contact net (3), electric current normal condition continue setting time, main control module (22) docking
The voltage of net-fault (3) synchronizes locking phase, according to the intermediate dc electricity between first rectifier (13) and inverter (15)
It presses value of feedback to carry out PID arithmetic, the open signal of switching device in first rectifier (13) is adjusted, by the high pressure transformation
The AC rectification of device (10) secondary side output supplies the inverter (15), the display module at the direct current of setting amplitude
(23) middle dc voltage, intermediate DC circuit are shown；
The inverter (15) by frequency conversion export three-phase alternating current, the display module (23) at the same show three-phase output electricity
Pressure, the main control module (22) is normally closed the output in detection output three-phase alternating current and switchs (18) afterwards, and externally exports
Three-phase alternating current；
In the contact net powersupply system power supply process, the contact net powersupply system has any abnormal or event
Barrier, the main control module (22) send corresponding block control pulse, disconnect the main circuit breaker (6), execute pantograph (2) and drop
Bow operation, the display module (23) carry out corresponding indicating fault and record.
2. contact net power supply network control method according to claim 1, which is characterized in that the contact net power supply
Electric power network control system (19) further includes charging system (21), and the charging system (21) includes the second rectifier (26), fills
Electric module (27), accumulator (28), overcurrent contactor (29), over-pressed contactor (30)；The method is further comprising the steps of：
High-tension transformer (10) the output single-phase exchange, it is the accumulator to be rectified into direct current through second rectifier (26)
(28) it charges, bends device (5) and master control system (20) output power supply from the accumulator (28) to the lifting；
The charging module (27) controls second rectifier (26) according to the output voltage value of feedback of the accumulator (28)
The open signal of middle switching device, to adjust the charging voltage and charging current of the accumulator (28)；
The charging module (27) can be to the overcurrent contactor that is set between second rectifier (26) and accumulator (28)
(29), over-pressed contactor (30) is controlled；
The charging module (27) carries out A/D conversions to the output voltage and charging current of the accumulator (28), for described
Main control module (22) is controlled, and is shown for the display module (23)；
The charging module (27) by calculating input signal, obtain the accumulator (28) over-voltage and over-current and
Undervoltage warning information, and execute corresponding protection act.
3. contact net power supply network control method according to claim 2, which is characterized in that the method further includes
Following steps：
After the contact net powersupply system collects the high pressure of contact net (3), the charging module (27) is according to electric power storage
The output voltage value of feedback in pond (28) controls the open signal of switching device in second rectifier (26), to adjust the storage
The charging voltage and charging current of battery (28)；
The display module (23) shows the charging voltage and charging current of the accumulator (28), when the accumulator (28)
When charging voltage is higher than overcurrent value higher than overpressure value or charging current, the charging module (27) blocks second rectifier
(26) the control pulse of switching device in, stopping charge to the accumulator (28)；
When the output voltage of the accumulator (28) is in under-voltage condition, the charging module (27) limits the accumulator
(28) external output voltage forbids the lifting bow device (5) to run, prompt charging overvoltage, mistake on the display module (23)
Stream or under-voltage fault are simultaneously recorded.
4. according to claim 1,2 or 3 any one of them contact net power supply network control methods, it is characterised in that：Institute
It states and is led to using CAN bus distributed control network between charging system (21), main control module (22) and display module (23)
News.
5. contact net power supply network control method according to claim 4, it is characterised in that：The main control module
(22) to inputting high AC voltage, the high-voltage ac current of first rectifier (13), first rectifier (13) with
It is every in middle dc voltage, intermediate DC circuit and the output of the inverter (15) AC three-phase between inverter (15)
Every phase current in phase voltage, AC three-phase output carries out A/D conversions, so that the main control module (22) is controlled, and supplies
The display module (23) is shown.
6. according to claim 1,2,3 or 5 any one of them contact net power supply network control methods, it is characterised in that：
The main control module (22) is to the arciform state of lifting of the pantograph (2), the make and break state of main circuit breaker (6), isolating transformer
(17) over-temperature condition of exchange output state, high-tension transformer (10), the chain state of hyperbaric chamber door (31) are monitored, with
It is controlled for the main control module (22), and is shown for the display module (23).
7. contact net power supply network control method according to claim 6, it is characterised in that：The main control module
(22) it exports pantograph rising bow to lifting bow device (5) or drop bow drive signal, the lifting bow device (5) passes through cylinder (4)
It controls the pantograph (2) and carries out rising bow or drop bow operation, main control module (22) the output main circuit breaker break-make drive signal
It is switched on or switched off for controlling the main circuit breaker (6), main control module (22) the output inverter start and stop drive signal is used for
The inverter (15) is controlled to start or stop；The isolating transformer (17) switchs (18) by output and exports three-phase alternating current
Pressure, the main control module (22) also control signal to output switch (18) output driving.
8. being existed according to claim 1,2,3,5 or 7 any one of them contact net power supply network control methods, feature
In：The main control module (22) synchronizes locking phase to the voltage of contact net (3), according to first rectifier (13) and inversion
Middle dc voltage value of feedback between device (15) carries out PID arithmetic, adjusts switching device in first rectifier (13)
Open signal, the AC rectification of the high-tension transformer (10) secondary side output is described inverse at the direct current supply of setting amplitude
Become device (15)；The main control module (22) is by being calculated including high pressure over-voltage and over-current, DC over-voltage input signal
Alarm signal including overcurrent, AC three-phase output overvoltage overcurrent, high-tension transformer excess temperature, fault of converter, network communication failure
Breath, and execute corresponding protection act.
9. contact net power supply network control method according to claim 8, which is characterized in that the display module
(23) following data is shown, including but not limited to：
A) high AC voltage, the high-voltage ac current of first rectifier (13), first rectifier (13) and inversion
Middle dc voltage, intermediate DC circuit between device (15), charging voltage, charging current and the institute of the accumulator (28)
State every phase voltage in the output of inverter (15) AC three-phase, every phase current in AC three-phase output；
B) the arciform state of lifting of the pantograph (2), the make and break state of the make and break state of main circuit breaker (6), output switch (18)；
The high-voltage alternating for inputting first rectifier (13) is over-pressed, normal, under-voltage, high-pressure and overflowing, normal, and accumulator (28) charged
Pressure, normal, under-voltage, overcurrent, middle dc voltage is over-pressed, normal, under-voltage, overcurrent, and inverter (15) AC three-phase exports
In per the over-pressed, normal, under-voltage of phase, overcurrent；
C) over-temperature condition of the high-tension transformer (10), the hyperbaric chamber door folding condition of (31), pantograph (2) air pressure shape
State, contact net power supply network control system (19) communication failure information.
10. according to claim 1,2,3,5,7 or 9 any one of them contact net power supply network control methods, feature
It is：The overvoltage of the contact net power supply network control system (19) is set by the display module (23), overcurrent is protected
Shield value, pid parameter；Display data is sent to communication module (24) by the display module (23), and the communication module (24) is logical
It crosses wireless-transmission network and sends data to terrestrial information processing and maintenance system (25), to carry out remote monitoring and remote failure
Diagnosis.
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| CN201810609736.7A CN108631446A (en) | 2018-06-13 | 2018-06-13 | A kind of contact net power supply network control method |
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| CN201810609736.7A CN108631446A (en) | 2018-06-13 | 2018-06-13 | A kind of contact net power supply network control method |
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| CN111111077A (en) * | 2020-01-16 | 2020-05-08 | 北京紫光新锐科技发展有限公司 | Automatic fire-fighting inspection control equipment and method |
| CN112332364A (en) * | 2020-09-28 | 2021-02-05 | 中车青岛四方机车车辆股份有限公司 | Overcurrent protection control method and system under pantograph lifting state of pantograph |
| CN112874389A (en) * | 2021-02-01 | 2021-06-01 | 重庆中车长客轨道车辆有限公司 | Operation protection method, device, equipment and computer readable storage medium |
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