CN108556636A - A kind of pantograph closed-loop control system - Google Patents
A kind of pantograph closed-loop control system Download PDFInfo
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- CN108556636A CN108556636A CN201810697748.XA CN201810697748A CN108556636A CN 108556636 A CN108556636 A CN 108556636A CN 201810697748 A CN201810697748 A CN 201810697748A CN 108556636 A CN108556636 A CN 108556636A
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- pantograph
- port
- valve
- control unit
- train
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 15
- 230000000630 rising effect Effects 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 239000002775 capsule Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
- B60L5/28—Devices for lifting and resetting the collector
- B60L5/32—Devices for lifting and resetting the collector using fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
Abstract
The present invention provides a kind of pantograph closed-loop control systems, are related to Pneumatic Control Technology field.In compressed air line concatenate filter after with solenoid valve, the output port of solenoid valve is connect with the input port of servo pressure regulating valve, the control port of five two three-way electromagnetic valves is connected with pantograph control unit port one, and the input terminal of servo pressure regulating valve is connected with the output control terminal mouth six of pantograph control unit;Air bag is accessed after the output pipe concatenation one-way throttle valve of servo pressure regulating valve, in the air bag pipeline of one-way throttle valve connection and connects safety valve and pressure sensor, the data output end of pressure sensor is connected with the port two of pantograph control unit;Another branch of air bag is equipped with rapid escape valve and pressure switch;The control terminal of rapid escape valve is connected with the port three of pantograph control unit, and the data output end for the Optical Fiber Force Sensor being arranged on slide plate is connected with the port four of pantograph control unit, and the output end of pressure switch is connected with the port five of pantograph control unit.
Description
Technical field
The present invention relates to the Pneumatic Control Technology fields of pantograph.
Background technology
Power train (including municipal rail train, electric locomotive and the EMU using the driving of gasbag-type pantograph) was being run
Required electric energy is obtained by the pantograph at the top of train from contact net in journey.
The variation of contact is directly affected by fluidity energy between pantograph and contact net, and contact is small, is be easy to cause
Pantograph is offline, causes the burn at bow net contact interface;On the contrary, when contact net pressure is big, contact line local buckling can be made, drawn
Play contact line fatigue damage, while also wear away slide plate and contact line and increasing, increase the replacement frequency of slide plate, increase operation at
This, can cause slide plate or contact line to fracture, cause accident between pantograph when serious.For this purpose, IEC (International Electrotechnical Commission), (Europe EN
Alliance's standard), the relevant criterions such as GB (chinese national standard) and TB (Chinese Railway standard) all have bow net contact power and explicitly want
It asks.
The variation of contact and the working line of power train, catenary's parameters, geographic factor, train speed, by electricity
Arc-shaped and pantograph opening and closing mouth traffic direction etc. have close relationship.In order to ensure power train by stream well it is necessary to
It asks the contact pressure fluctuations at bow net contact small, needs to compensate adjustment to bow net contact pressure.Pantograph and contact net it
Between contact, rely primarily on pantograph control system realization.
Patent ZL 200520142757.0 describes a kind of pantograph control valve using precise pressure regulating valve as adjusting device
Group, this control valve group can only provide an invariable lifting force, control before power train is runed by the adjustment of manpower
Mode controls for passive type, cannot in real time be changed based on train speed, running environment, be not suitable for high speed and bad working environments
It uses.
Patent ZL 200710107353.1 describes a kind of pantograph control system by air-drive pilotage, including electricity
The main devices such as road, pressure regulator, two motor-driven valves, pressure sensors, core are to coordinate two using pressure regulator
Motor-driven valve realizes the adjustment to pantograph gasbag pressure value, and two motor-driven valves realize tonifying Qi and operation of losing heart respectively, while also existing
Bladder port is provided with pressure sensor, monitors the pressure change feedback in air bag to circuit, circuit also receives vehicle group or network
The information such as information, geology alignment sensor, climactic sensors information and train speed, control motor-driven valve after comprehensive analysis, lead to
Over-pressed draught control mechanism realizes the adjusting of gasbag pressure.Based on above-mentioned analysis it is found that being described in patent ZL 200710107353.1
System influences bow net contact forces indirectly by adjusting the pressure value in pantograph air bag, though it can adjust in real time, not
The decaying occurred when considering between gasbag pressure value is transmitted to bow net contact or amplification effect, thus be a kind of opened loop control system
System.Moreover, this control system realizes complexity, need to use multiple components, cost is higher.
Patent ZL201010165635.9 describes a kind of pantograph control device, including main control circuit unit, pressure reducing valve,
The main components such as big flow precise proportions reversal valve, solenoid valve, pressure sensor, main control circuit unit are obtaining train speed
Information, line conditions information (information such as open-wire line, tunnel), pantograph condition information (pantograph type, nominal quiescent contact
Value etc. information), pantograph location information (information such as Dan Gong, bouble-bow, anterior arch, cantle), contact net condition information (contact net class
The information such as type, tension, span), (pantograph is opened for climatic information (information such as extraneous wind speed, temperature, humidity) and traffic direction information
The information such as mouthful operation, silent operation) etc. after information, realized in pantograph air bag by controlling big flow precise proportions reversal valve
Pressure value is adjusted, and then influences bow net contact forces indirectly.Similarly, the control described in patent ZL201010165635.9
System is also a kind of open-loop control system, and there are anti-electromagnetic interference capabilities during the use of big flow precise proportions reversal valve
Difference, it is expensive the shortcomings of.
In above-mentioned technical proposal, at least there are the following problems:
Bow net contact pressure is influenced by external environment and pantograph structure, and one is quilts for existing pantograph control system
Dynamic formula system cannot change with speed, external environment and adjust in real time;One is open loop type control systems, can only be to pantograph
Pressure value carries out adjusting and then influencing bow net contact power in real time in air bag, cannot consider that pantograph structure transmits gasbag pressure
Decaying when to bow net contact power or amplification, it is more to exist simultaneously component used in realization method, poor anti jamming capability,
The shortcomings of of high cost.
Existing control mode is due to that cannot accurately control bow net contact forces so that increase the abrasion of slide plate, fortune in operation
Battalion's cost becomes larger.
Invention content
The object of the present invention is to provide a kind of pantograph closed-loop control systems, it can efficiently solve bow net contact forces essence
True control problem.
The purpose of the present invention is what is be achieved through the following technical solutions:A kind of pantograph closed-loop control system, including setting
Optical Fiber Force Sensor on pantograph pan and rising bow baric systerm are gone here and there from the compressed air line that train air compressor machine is drawn
It is connect with the input port of five two three-way electromagnetic valves after connecing filter, output port and the servo pressure regulating valve of five two three-way electromagnetic valves
Input port connects, and the control port of five two three-way electromagnetic valves is connected with the port one of pantograph control unit, for feeding back five
The state of two three-way electromagnetic valves gives pantograph control unit;The input terminal of servo pressure regulating valve is controlled with the output of pantograph control unit
Port six is connected, the output for controlling servo pressure regulating valve;After the output pipe concatenation rising bow one-way throttle valve of servo pressure regulating valve
Access air bag, one-way throttle valve connection air bag pipeline in and connect safety valve and pressure sensor, the data of pressure sensor are defeated
Outlet is connected with the port two in pantograph control unit;Another branch of air bag is equipped with rapid escape valve and pressure switch;Quickly
The control terminal of air bleeding valve is connected with the port three in pantograph control unit, the compressed air for being quickly discharged in air bag, sliding
The data output end for the Optical Fiber Force Sensor being arranged on plate is connected with the port four in pantograph control unit, for feeding back detection
Bow net contact forces data;The output end of pressure switch is connected with the port five in pantograph control unit, for detect by
The fault detect of pantograph.
The pantograph control unit is equipped with the port seven with train communication.
The train communication port seven is by obtaining train running speed, train for closed-loop control with train communication
Operating status and line status.
The train communication port seven and the communication mode of train is:Serial ports, multifunctional train bus MVB or ether
Net.
The exhaust outlet of the servo pressure regulating valve is equipped with drop bow throttle valve, for the adjusting to drop bow speed.
As seen from the above technical solution provided by the invention, pantograph closed-loop control provided in an embodiment of the present invention system
Closed-loop control may be implemented in system, detects the contact between pantograph and contact net in real time and feeds back to pantograph control unit,
The external conditions such as comprehensive analysis train running speed, train operation state and line status automatically, quickly and accurately adjust gas
The pressure of capsule, and then the contact between dynamic control bow net have reached guarantee train to reduce the abrasion between spark and bow net
Safe and reliable, high-speed cruising and reduction carbon slipper are worn away to save the purpose of operation cost, while after component malfunction,
System can cut off closed-loop control automatically, only with opened loop control or passive mode operation and the state of emergency under, fast automatic drop
Bow is to protect pantograph and contact net by the function of more havoc.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment one
As shown in Figure 1, a kind of pantograph closed-loop control system, can detect the contact between pantograph and contact net in real time
And pantograph control unit is fed back to, the external conditions such as comprehensive analysis train running speed, train operation state and line status,
Using the compressed air from train to pantograph carry out real-time closed-loop control, dynamic adjust bow net contact pressure in favor of by
Stream, including:1, five two three-way electromagnetic valve 2 of filter, servo pressure regulating valve 3, rising bow one-way throttle valve 4, safety valve 5, air bag 6, by
Pantograph control unit 7, pressure sensor 8, rapid escape valve 9, pressure switch 10, slide plate 11 and Optical Fiber Force Sensor 12;Servo
Pressure regulator valve 3 has passive and two kinds of operating modes of automatic adjustment;Optical Fiber Force Sensor 12 detects bow net contact forces for real-time,
Pantograph control unit 7 is inputed to by port 4 13;7 comprehensive analysis detection data of pantograph control unit and train line shape
State information exports control signal to servo pressure regulating valve 3 dynamically to adjust bow net contact forces by port 6 18;And work as pantograph
Closed-loop control system breaks down, when 6 18 non-output signal of port or output disorderly, servo pressure regulating valve 3 automatically switch by
Start building operation mode, adjust output valve in advance in such a mode, compressed air is not adjusted to be directly entered air bag 6, at this time by
Pantograph intracapsular pressure is invariable not to adjust bow net contact forces in real time;Simultaneously in emergency situations, pantograph control is single
Member 7 can control rapid escape valve 9 by port 3 15, and pantograph is made quickly to fall, and prevent pantograph and contact net from occurring more
Big destruction is played the role of actively protecting pantograph and contact net;
Its specific connection type is as follows:The filter 1 receives the compressed air from train and carries out at filtration drying
Reason, then outputs it to five two three-way electromagnetic valves 2;Five two three-way electromagnetic valves 2 are controlled by train operator by rigid line, and are led to
Port 1 is crossed by its feedback of status to pantograph control unit 7;When obtaining electric, five two three-way electromagnetic valves 2 are connected, and compressed air is straight
Connected five two three-way electromagnetic valves 2, when dead electricity, five two three-way electromagnetic valves 2 disconnect, and compressed air is blocked to enter in air bag 6;From five
After the compressed air sequence of position two three-way electromagnetic valves 2 output flows through servo pressure regulating valve 3, rising bow one-way throttle valve 4 and safety valve 5, into
Enter air bag 6;Pressure sensor 8 and air bag 6 connect, and data output end is connected with the port 2 16 in pantograph control unit 7,
Pressure information for detecting air bag 6;The input terminal of servo pressure regulating valve 3 and the output control terminal mouth six of pantograph control unit 7
18 are connected, the output for controlling servo pressure regulating valve 3;Optical Fiber Force Sensor 12 be mounted on slide plate 11 on, data output end with
Port 4 13 in pantograph control unit 7 is connected, the bow net contact forces data for feeding back detection;
Wherein, air bag 6 is also associated with rapid escape valve 9 and pressure switch 10;The control terminal and pantograph of rapid escape valve 9
Port 3 15 in control unit 7 is connected, the compressed air for being quickly discharged in air bag 6;
The output end of the pressure switch 10 is connected with the port 5 14 in pantograph control unit 7, is used for pantograph
Fault detect, when the pressure value in air bag 6 reaches setting value, then it is assumed that pantograph has risen and working properly, conversely, then having
Failure;
Wherein, the pantograph control unit 7 uses model STM32F103VET6 microcontrollers, is pacified according to actual demand
Arrange seven Wiring ports, including train communication port 7 17.Train communication port 7 17 is obtained by train and is used for closed-loop control
Train running speed, train operation state (pantograph the position of train, train and pantograph traffic direction, whether have
It is related to the failure of pantograph) and line status (whether having tunnel, mileage information, humiture information);Train communication port 7 17
Communication mode with train is:Serial ports, MVB (multifunctional train bus) or Ethernet;
The exhaust outlet of the servo pressure regulating valve 3 is connected with drop bow throttle valve 20, for the adjusting to drop bow speed, to keep away
Exempt to injure roof or pantograph ontology by a crashing object;
The Optical Fiber Force Sensor 12 uses optical fiber transmission data, has good anti-interference.
Further, the operation principle of this pantograph closed-loop control system is as follows:
Under normal operation, rising bow signal is sent out by power train driver, five two three-way electromagnetic valves 2 must conduct, pressure
Contracting air is arrived through 1, five two three-way electromagnetic valve 2 of cleaner, servo pressure regulating valve 3, rising bow one-way throttle valve 4 and safety valve 5 successively
Up to air bag 6;The closure of pressure switch 10 exports pantograph signal working properly to pantograph control unit 7 at this time, and pantograph control
Unit 7 processed controls rapid escape valve 9 and is closed.At this point, servo pressure regulating valve 3 is operated in automatic adjustment pattern and when speed is more than zero
When, pantograph control unit 7 is received from pressure sensor 8, Optical Fiber Force Sensor 12 and is obtained by train communication port 7 17
The external information arrived, accurately and fast to control the aeration quantity and air leakage amount of air bag 6, to make the contact one between bow net
It is straight to keep rational horizontal.And when speed is equal to zero, 7 port of pantograph control unit, 6 18 output signal is zero, i.e. servo
Regulating valve output valve is constant.Corresponding rising bow one-way throttle valve 4 controls the flow velocity of the compressed air, with control into
Enter the flow velocity of the compressed air of air bag 6.Drop bow throttle valve 20 is used to control the discharge flow velocity of compressed air;
When Optical Fiber Force Sensor 12 breaks down, pantograph control unit 7 actively closes the transmission of 4 13 data of port,
Pantograph control unit 7 does not receive the data from Optical Fiber Force Sensor 12 at this time, and entire control system work is at opened loop control
State;
When in servo regulation valve 3, pantograph control unit 7 or pressure switch 10 it is any break down when, servo regulation valve 3
Automatically into passive work mode.Adjust output valve in advance in such a mode, compressed air is not adjusted to be directly entered gas
Capsule 6, i.e., the compressed air pressure value for entering air bag 6 at this time are invariable;Such situation can give gas as a kind of emergency plan
Capsule provides contact between the constant static bow net of an approximation, to ensure that train occurs in the system for accurately controlling gasbag pressure
It remains to continue to travel in the case of failure, reduces whole system failure rate, improve availability.
Scrape bow when pantograph occurs, when contacting thread breakage etc. pantograph being needed promptly to fall situation, train operator or
Urgent drop bow instruction occurs automatically for pantograph control unit 7, and pantograph control unit 7 obtains that port six is automatically closed when this instruction
18 output, and rapid escape valve 9 is controlled by port 3 15 and is connected, because the design capacity of rapid escape valve 9 is more than air bag 6
Air inflow, then compressed air is quickly discharged in air bag 6, and pantograph is fallen;Meanwhile pantograph control unit 7 is logical by train
Letter interface 7 17 feeds back pantograph control system and has been carried out fast prompt drop bow instruction, then train control system makes five two energizations automatically
Magnet valve 2 powers off, and compressed air cannot enter in air bag 6.
The realization of the embodiment of the present invention can make pantograph control system realize closed-loop control, detect pantograph in real time and connect
Contact between net-fault simultaneously feeds back to pantograph control unit, comprehensive analysis train running speed, train operation state and line
The external conditions such as line state, pressure that is automatic, quickly and accurately adjusting air bag 6, and then the contact pressure between dynamic control bow net
Power has reached safe and reliable guarantee train, high-speed cruising and has reduced carbon slipper abrasion to reduce the abrasion between spark and bow net
To save the purpose of operation cost, while after component malfunction, system can cut off closed-loop control automatically, only with open loop control
Under system or passive mode operation and the state of emergency, fast automatic drop bow is to protect pantograph and contact net by more havoc
Function.
The foregoing is only a preferred embodiment of the present invention, any one skilled in the art exists
In the technical scope of present disclosure, the change or replacement that can be readily occurred in should be covered by the protection scope of the present invention.
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
Bright protection domain.
Claims (5)
1. a kind of pantograph closed-loop control system includes Optical Fiber Force Sensor (12) and liter of the setting on pantograph pan (11)
Bend baric systerm, it is characterised in that:From train air compressor machine draw compressed air line in concatenation filter (1) afterwards with five two
The input port of three-way electromagnetic valve (2) connects, and the output port of five two three-way electromagnetic valves (2) connects with the input port of servo pressure regulating valve (3)
It connects, the control port of five two three-way electromagnetic valves (2) is connected with the port one (19) of pantograph control unit (7), for feeding back five
The state of two three-way electromagnetic valves of position (2) gives pantograph control unit (7);The input terminal of servo pressure regulating valve (3) and pantograph control are single
The output control terminal mouth six (18) of first (7) is connected, the output for controlling servo pressure regulating valve (3);The output of servo pressure regulating valve (3)
Pipeline concatenate rising bow one-way throttle valve (4) afterwards access air bag (6), one-way throttle valve (4) connection air bag (6) pipeline in and connect peace
Full valve (5) and pressure sensor (8), data output end and the port two in pantograph control unit (7) of pressure sensor (8)
(16) it is connected;Air bag (6) another branch is equipped with rapid escape valve (9) and pressure switch (10);The control terminal of rapid escape valve (9)
It is connected with the port three (15) in pantograph control unit (7), the compressed air for being quickly discharged in air bag (6), slide plate
(11) data output end for the Optical Fiber Force Sensor (12) being arranged on and port four (13) phase in pantograph control unit (7)
Even, the bow net contact forces data for feeding back detection;On the output end and pantograph control unit (7) of pressure switch (10)
Port five (14) is connected, the fault detect for detecting pantograph.
2. a kind of pantograph closed-loop control system according to claim 1, it is characterised in that:The pantograph control unit
(7) it is equipped with the port seven (17) with train communication.
3. a kind of pantograph closed-loop control system according to claim 2, it is characterised in that:The train communication port
Seven (17) are by obtaining train running speed, train operation state and line status for closed-loop control with train communication.
4. a kind of pantograph closed-loop control system according to claim 2, it is characterised in that:The train communication port
Seven (17) and the communication mode of train are:Serial ports, multifunctional train bus MVB or Ethernet.
5. a kind of pantograph closed-loop control system according to claim 1 or 2, which is characterized in that servo pressure regulating valve (3)
Exhaust outlet is equipped with drop bow throttle valve (20), for the adjusting to drop bow speed.
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