CN208774546U - It is a kind of based on take stream feed back active control device for pantograph - Google Patents
It is a kind of based on take stream feed back active control device for pantograph Download PDFInfo
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- CN208774546U CN208774546U CN201821170680.1U CN201821170680U CN208774546U CN 208774546 U CN208774546 U CN 208774546U CN 201821170680 U CN201821170680 U CN 201821170680U CN 208774546 U CN208774546 U CN 208774546U
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- Prior art keywords
- pantograph
- gas circuit
- air bag
- valve
- current sensor
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- 238000001914 filtration Methods 0.000 claims 1
- 230000000630 rising effect Effects 0.000 abstract description 12
- 230000001133 acceleration Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The utility model discloses a kind of based on the active control device for pantograph for taking stream to feed back, including the main cables being connect with pantograph and air bag, the air supply source being connect by gas circuit with air bag, it is set to gas circuit control cabinet in gas circuit, for acquiring the current sensor in main cables by electric current, wheel counting apparatus, the capture card being all connected with current sensor and wheel counting apparatus, the control module being connect with capture card, the driver being connect with control module, and it is driven the electromagnetic relief pressure valve of device control.The constant pressure pressure-reducing valve that can not be adjusted in real time in original gas circuit control cabinet is replaced with the controllable electromagnetic relief pressure valve in the setting of non-high voltage part by the utility model, adjust air bag pressure can in real time, it is incorporated in the current sensor being arranged in pantograph main cables, pass through the rising bow power of size of current feedback control pantograph, acceleration area Pantograph-OCS system arcing rate is effectively reduced, to achieve the purpose that reduce electrically wearing away for pantograph pan and contact line.
Description
Technical field
The utility model relates to electric locomotives and motor-car pantograph technical field, in particular, being to be related to one kind to be based on taking
Flow the active control device for pantograph of feedback.
Background technique
In electric railway and City Rail Transit System, power train obtains electricity from overhead contact line using pantograph
Energy.Pantograph is generally by pantograph pan, upper frame, lower arm rod (both arms bow lower frame), chassis, rising bow spring, transmission gas
The components such as cylinder, support insulator composition.
Pantograph is mounted on car body top, and the contact wire of pantograph pan and offer electric energy is kept in train travelling process
Sliding contact.Pantograph and contact net the two subsystems are combined by bow net contact couple of force, form an interaction
Dynamical system.
Electric energy needed for power train passes through the transmission of the contact point of pantograph pan and contact wire.In accelerator,
Bow net contact point passes through very big electric current.Very big electric current results in bow net contact point arcing, and then increases pantograph pan
With the electrical abrasion of contact line.Many metro pantograph slide plate service life only have the half of desired value, the big discounting of economy at present
Button.
For this purpose, the utility model wishes that it is existing to reach reduction acceleration area bow net arcing by the active control to pantograph
As reducing the purpose of abrasion of pantograph pan.
It is a kind of based on State Variable Feedback Linearization Method that document number is that the Chinese patent literature of CN106094520A discloses
Pantograph Active Control Method.The pantograph control method that the document is announced is by establishing ternary bow net Coupled Dynamics mould
Type, and force analysis is carried out to it, Pantograph-OCS system quantity of state is obtained, by its feedback linearization, and finds out transmission function and zero pole
Point reaches linear optimal contro8 strategy so as to adjust rising bow power.
Document number is that the Chinese patent literature of CN105652111A discloses a kind of pantograph dynamic operation Properties Control side
Method and device.It mainly passes through experiment to the control method of pantograph and obtains pantograph in the bow of different directions friction speed grade
By stream performance parameter and pantograph dynamic parameters, the method for then utilizing quadratic polynomial curvilinear regression, bow net connects net
Trend regression curve of the touch under the friction speed grade of different openings direction is returned finally by resulting bow net contact power trend
The dynamic operation performance of curve controlled pantograph.Its principal concern be by the control of the dynamic performance parameter to pantograph,
To control bow net contact power, guarantee that pantograph-catenary current collection is good.
Document number is that the Chinese patent literature of CN2014570094U discloses a kind of active control device for pantograph, the dress
The contact force variation that energy Active Compensation contact net is generated by various factors is set, pressure oscillation is reduced.The device main operational principle
It is to determine that the corresponding pantograph ideal of traffic coverage each position is lifted by computer gas circuit controller and the GPS device on train
Amount, the data such as wind-force, wind direction then obtained according to the data of vehicular speeds table and train anemometer, and combine current contact net
Rigidity value, calculate pantograph different motion state generation total Uplifting amount.Finally according to ideal Uplifting amount and total Uplifting amount
Size, carrying out active opened loop control to air bag to compensate bow net contact pressure makes it remain almost the same.It is main
Focus is the control of the data that are obtained by the device to pantograph air bag, to control bow net contact pressure.
Active control, which is mostly realized by adjusting Dynamic Parameters of Pantograph, to be realized to pantograph at this stage, according to pantograph
Dynamic performance carries out active control.But bow net contact is not accounted for yet there is no the factor for considering that pantograph takes stream in control
The current-carrying capability of point.
Inventor studies this, according to the study the results show that when bow net contact point current-carrying capacity rises, arcing probability
It greatly increases, the abrasion in turn resulting in pantograph pan and contact line increase.Based on this research, inventor proposes quiet by increasing
State rising bow power reduces arcing rate, to reduce bow net abrasion, to improve this case.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of based on the pantograph active control for taking stream to feed back dress
It sets, power is risen to pantograph by bow net contact point electric current and carries out feedback control, bow net contact power increases when making to accelerate, and reduces bow
The arcing for netting contact point achievees the purpose that pantograph pan and contact line abrasion reduce.
To achieve the goals above, the technical solution adopted in the utility model is as follows:
It is a kind of based on the active control device for pantograph for taking stream to feed back, including the main cables being connect with pantograph and air bag,
It is the air supply source of air bag gas supply, and the gas circuit control cabinet being set in the gas circuit between air bag and air supply source by gas circuit, uses
In the current sensor in acquisition main cables by electric current, the wheel counting apparatus being set on rail wheel, with current sensor and meter
The capture card that axis device is all connected with, the control module being connect with capture card, the driver being connect with control module, and it is set to confession
In gas circuit between gas source and gas circuit control cabinet and it is driven the electromagnetic relief pressure valve that device controls；
Wherein, the gas circuit control cabinet is mainly included in the mistake set gradually in the gas circuit between electromagnetic relief pressure valve and air bag
Filter, safety valve and the first one-way throttle valve, the exhaust branch that the gas circuit between safety valve and air bag is arranged in parallel, Yi Jishe
The second one-way throttle valve being placed on exhaust branch, first and second one-way throttle valve it is contrary.
Preferably, the current sensor is the Hall current sensor being placed in main cables.
Preferably, the electromagnetic relief pressure valve is set to the non-high voltage part that the gas circuit corresponds to pantograph.
Specifically, the air supply source includes the air compressor machine with the air circuit connection of gas circuit control cabinet, is set to air compressor machine and gas
The solenoid directional control valve in gas circuit between the control cabinet of road, and the bailout gas being connect with solenoid directional control valve.
Compared with prior art, the utility model has the following beneficial effects:
(1) the utility model replaces with the constant pressure pressure-reducing valve that can not be adjusted in real time in original gas circuit control cabinet in non-high electricity
The controllable electromagnetic relief pressure valve of laminate section setting, adjust air bag pressure can in real time, is incorporated in and is arranged in pantograph main cables
Current sensor effectively reduces acceleration area Pantograph-OCS system arcing by the rising bow power of size of current feedback control pantograph
Rate, to achieve the purpose that reduce electrically wearing away for pantograph pan and contact line, and the utility model is novel, design
Ingenious, structure is relatively easy, it is easy to accomplish, basis is had a wide range of applications in pantograph control technology field, suitable popularization is answered
With.
(2) section that the utility model is presently in by axis-counting device auxiliary judgement train, so determine it is current by
Whether pantograph curent change is in train acceleration and is easy to produce the stage electrically worn, and improves the standard to pantograph active control
True property makes it accelerate to effectively reduce electrical abrasion by increasing rising bow power with the deboost phase, while being also based on to locating
The judgement of section takes the feedback of flow reduction according to electric current, reduces gas in due course when train enters the inert region of fast state
Capsule air pressure, to mitigate the mechanical wear of pantograph pan and contact line in the section, to reduce pantograph pan on the whole
With the abrasion of contact line, the service life of pantograph corresponding part is improved.
(3) traffic partition that takes of pantograph is multiple sections by the maximum changing range of electric current by the utility model, in advance
The corresponding air bag pressure value in each section is set, can directly be adjusted air bag pressure to default after detecting that pantograph takes flow
Value, has achieved the purpose that simplified control process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pantograph and its control section in the prior art.
Fig. 2 is the structural schematic diagram of the gas circuit control cabinet of pantograph in the prior art.
Fig. 3 is the structural block diagram of the utility model.
Fig. 4 is the structural schematic diagram of the gas circuit control cabinet in the utility model.
Fig. 5 is setting schematic diagram of the utility model in pantograph.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, and the embodiments of the present invention includes
But it is not limited to the following example.
As illustrated in fig. 1 and 2, pantograph passes through by the lifting of air bag controlled pantograph in the Pantograph-OCS system of the prior art
Gas circuit control cabinet controls the air pressure of air bag, and then controls the size of pantograph rising bow power.In original gas circuit control cabinet, tool
There are constant pressure pressure-reducing valve 15, filter, safety valve and one-way throttle valve, air bag pressure be adjusted by constant pressure pressure-reducing valve,
Normal processes are to adjust in train overhaul to the constant pressure pressure-reducing valve of pantograph, and constant pressure pressure-reducing valve is then during train operation
It is non-adjustable.That is, being to have preset atmospheric pressure value to pantograph air bag by constant pressure pressure-reducing valve in the prior art, make train
During the entire process of all keep same air bag pressure, so that the rising bow power of pantograph be made to maintain a fixed value.According to inventor
To pantograph state of wear the study found that since pantograph in different sections takes flow different, in the section for taking flow big
Such as acceleration area, braking section, the current-carrying capacity of bow net contact point can accordingly rise, and greatly increase arcing rate, thus significantly
The electrical abrasion for increasing pantograph pan and contact line, seriously affect the service life of pantograph pan.Data according to statistics, often
The practical physical life of the pantograph pan of rule only has the half of desired value.Based on this, inventor is from pantograph electric current to by electricity
The direction that bow abrasion influence study and has improved, and proposes the solution of the utility model.
Embodiment
It as shown in Figures 3 to 5, should be based on the active control device for pantograph for taking stream to feed back, including what is connect with pantograph 1
Main cables 2 and air bag 3 are the air supply source 14 of air bag gas supply, and the gas circuit being set between air bag and air supply source by gas circuit
On gas circuit control cabinet 13, for acquiring by the current sensor 4 of electric current in main cables, the meter shaft being set on rail wheel
Device, the capture card being all connected with current sensor and wheel counting apparatus, the control module connecting with capture card are connect with control module
On driver, and the gas circuit that is set between air supply source and gas circuit control cabinet and it is driven the electromagnetic relief pressure valve 5 of device control.
Wherein, the gas circuit control cabinet is mainly included in the mistake set gradually in the gas circuit between electromagnetic relief pressure valve and air bag
Filter 6, safety valve 7 and the first one-way throttle valve 8, the exhaust branch that the gas circuit between safety valve and air bag is arranged in parallel, with
And be set to the second one-way throttle valve 9 on exhaust branch, first and second one-way throttle valve it is contrary.Specifically
Ground, the air supply source include the air compressor machine 11 with the air circuit connection of gas circuit control cabinet, be set to air compressor machine and gas circuit control cabinet it
Between gas circuit on solenoid directional control valve 10, and the bailout gas 12 being connect with solenoid directional control valve.
Preferably, the current sensor is the Hall current sensor being placed in main cables.The capture card according to
According to the output selection of current sensor.The driver is matched according to control module output voltage and electromagnetic relief pressure valve required voltage
It sets.Existing PLC controller or singlechip controller can be used in the control module.The electromagnetic relief pressure valve is set to the gas
Road corresponds to the non-high voltage part of pantograph.Further, the control module can be configured to independent control device, can also collect
At in the control system of train.
When the utility model is used, the electric current of pantograph is obtained by the current sensor being set in pantograph main cables
Signal, and pass through speed signal/position signal of axis-counting device acquisition train；Then believed according to the speed signal of train/position
Section where number judgement train, cooperation current signal feedback adjusts air bag pressure in real time, changes the rising bow power of pantograph, to reduce
Bow net contact point arcing rate；Wherein, when train is in acceleration area, current signal increases, and adjusts air bag pressure and increases, increases
The rising bow power of pantograph；When train is in inert region, current signal reduces, and adjusting air bag pressure reduces, and reduces pantograph
Rising bow power；When train is in braking section, current signal increases, and adjusts air bag pressure and increases, increases the rising bow of pantograph
Power.
Above-described embodiment is only the preferred embodiment of the utility model, is not intended to limit the scope of the present invention,
In every case the design principle of the utility model is used, and carries out the non-creative variation worked and made on this basis, it should all
Belong within the protection scope of the utility model.
Claims (4)
1. a kind of led to based on the active control device for pantograph for taking stream to feed back including the main cables connecting with pantograph and air bag
The air supply source that gas circuit is air bag gas supply, and the gas circuit control cabinet being set in the gas circuit between air bag and air supply source are crossed, it is special
Sign is, further includes the wheel counting apparatus being set on rail wheel for acquiring the current sensor in main cables by electric current, with
The capture card that current sensor and wheel counting apparatus are all connected with, the control module being connect with capture card, the driving being connect with control module
On device, and the gas circuit that is set between air supply source and gas circuit control cabinet and it is driven the electromagnetic relief pressure valve of device control；
Wherein, the gas circuit control cabinet is mainly included in the filtering set gradually in the gas circuit between electromagnetic relief pressure valve and air bag
Device, safety valve and the first one-way throttle valve, the exhaust branch that the gas circuit between safety valve and air bag is arranged in parallel, and setting
In the second one-way throttle valve on exhaust branch, first and second one-way throttle valve it is contrary.
2. according to claim 1 based on the active control device for pantograph for taking stream to feed back, which is characterized in that the electric current
Sensor is the Hall current sensor being placed in main cables.
3. according to claim 1 based on the active control device for pantograph for taking stream to feed back, which is characterized in that the electromagnetism
Pressure reducing valve is set to the non-high voltage part that the gas circuit corresponds to pantograph.
4. described in any item based on the active control device for pantograph for taking stream to feed back according to claim 1~3, feature exists
In the air supply source includes the air compressor machine with the air circuit connection of gas circuit control cabinet, is set between air compressor machine and gas circuit control cabinet
Gas circuit on solenoid directional control valve, and the bailout gas being connect with solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821170680.1U CN208774546U (en) | 2018-07-23 | 2018-07-23 | It is a kind of based on take stream feed back active control device for pantograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821170680.1U CN208774546U (en) | 2018-07-23 | 2018-07-23 | It is a kind of based on take stream feed back active control device for pantograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208774546U true CN208774546U (en) | 2019-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821170680.1U Expired - Fee Related CN208774546U (en) | 2018-07-23 | 2018-07-23 | It is a kind of based on take stream feed back active control device for pantograph |
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| Country | Link |
|---|---|
| CN (1) | CN208774546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944462A (en) * | 2018-07-23 | 2018-12-07 | 西南交通大学 | It is a kind of based on take stream feed back pantograph Active Control Method and control device |
| CN116400623A (en) * | 2023-04-06 | 2023-07-07 | 南京星河世纪信息技术有限公司 | Intelligent monitoring system for high-voltage equipment |
-
2018
- 2018-07-23 CN CN201821170680.1U patent/CN208774546U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944462A (en) * | 2018-07-23 | 2018-12-07 | 西南交通大学 | It is a kind of based on take stream feed back pantograph Active Control Method and control device |
| CN108944462B (en) * | 2018-07-23 | 2023-09-08 | 西南交通大学 | Pantograph active control method and device based on current taking feedback |
| CN116400623A (en) * | 2023-04-06 | 2023-07-07 | 南京星河世纪信息技术有限公司 | Intelligent monitoring system for high-voltage equipment |
| CN116400623B (en) * | 2023-04-06 | 2024-05-14 | 国网安徽省电力有限公司芜湖供电公司 | Intelligent monitoring system for high-voltage equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |