CN201457094U - Active control device for pantograph - Google Patents
Active control device for pantograph Download PDFInfo
- Publication number
- CN201457094U CN201457094U CN2009200830011U CN200920083001U CN201457094U CN 201457094 U CN201457094 U CN 201457094U CN 2009200830011 U CN2009200830011 U CN 2009200830011U CN 200920083001 U CN200920083001 U CN 200920083001U CN 201457094 U CN201457094 U CN 201457094U
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- gas
- pantograph
- valve
- pressure
- air bag
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Abstract
The utility model relates to an active control device for a pantograph type current collector. A gas bag (2) of the device is connected with a gas-circuit control system of the pantograph, the gas-circuit control system is specifically formed in the way that an electromagnetic directional valve (7) is connected in series with a gas circuit between a constant pressure pressure-reducing valve (8) and a filter (6), one end of a proportional directional-flow valve (9) is in gas connection with the electromagnetic directional valve (7), and the other end of the proportional directional-flow valve (9) is in gas connection with the gas bag (2); a control end of the proportional directional-flow valve (9) is connected with an output end of a computer gas-circuit controller (5); and an anemoscope (51), a CPS positioning device (52), a train vehicle-mounted odometer (53), a vehicle-mounted speedometer (54) are connected with corresponding input ends of the computer gas-circuit controller (5). The system can actively compensate a contract net for the contact-pressure change caused by various factors, so as to obviously reduce the fluctuation of the contact pressure, to ensure a good contact of a bow net in an operation process and the engine's steady flow collection; therefore, the safe, reliable and high speed running of an electrified railway can be ensured. Furthermore, the device has the advantages of easy implementation, low cost and special suitability for high speed train.
Description
Technical field
The utility model relates to a kind of pantograph active control device of electrified railway locomotive.
Background technology
Electric traction is all adopted in electrified railway, and it is along the line to be distributed in railway from the electric energy of electrical network by contact system, and locomotive is provided with pantograph, pantograph and sees Fig. 1 with the structure of its associated mechanical components.Framework 1 lower end of pantograph is connected by air bag 2 on the base 3 of pantograph, and pantograph base 3 is fixed on the roof 13 of locomotive by insulator 12.Locomotive is in operational process, and pantograph is upwards lifted with contact system and contacted, and realizes at any time from the contact system power taking.Locomotive must guarantee the absolute reliable and uninterrupted of its power supply in operational process, otherwise will influence the performance of high speed train operation and electrical drive system.So one of gordian technique of high-speed electric railway is how to guarantee having good current carrying quality under the high-speed cruising condition, promptly when the train high-speed cruising, keep even, the stable stream mode that is subjected to.
Electrification railway contact net is the periodic system that couples together by the anchor section, an anchor section is one-period, comprise a plurality of striding in an anchor section, each span centre contact wire is suspended in the below of catenary by many droppers, and catenary is fixed by surface-based pillar.Train moves on the line, and the contact condition of pantograph and contact system can be owing to influence of various factors changes.
At first, contact system is striden interior rigidity difference, and a near rigidity of striding the inner pillar is big, and in the rigidity minimum of span centre.Pantograph is when keeping in touch with contact system, because the rigidity difference at contact system diverse location place, cause bow in operational process, can fluctuate up and down the vertical of contact wire, the contact pressure of bow net contact position also can constantly change, rigidity is big near the pillar, bow lifting amount is little, contact pressure is little, and near the contact pressure the span centre is big.The fluctuation of contact pressure can make the bow net contact condition constantly change, even can produce the disadvantageous phenomenon generations such as destruction of off-line and contact wire.Contact pressure is little, and contact resistance is big, produces a large amount of energy consumption and electric heating, even causes off-line, and promptly pantograph collector head disengages line and produces electric arc, causes the burn of bow net contact interface; On the contrary, when contact system pressure is big, will make the contact wire local bending, cause the contact wire fatigue damage, the abrasion of pantograph collector head slide plate and contact wire are increased, cause accident between pantograph when serious.
Secondly because pantograph has opening and the two kinds of different mode of operation of remaining silent, when pantograph only when a direction is moved, can cause the eccentric wear of carbon slide plate, influence the service life of pantograph.Therefore during train operation, when pantograph open and close mouth operation scheme hockets.And under two kinds of different operating modes, the additive air lifting power that pantograph is subjected to is different, and additional air lifting amount is also different, thereby makes that the contact pressure of bow net contact position was also different when pantograph opened and closed mouthful operation.
The 3rd, in train travelling process, wind-force also can exert an influence to the bow net contact force.
Therefore, good in order to guarantee the bow net contact, locomotive is subjected to stream good, improves safety of railway transportation, reliability and stability, requires the contact pressure fluctuations of bow net contact position little, and this just need compensate control to the contact pressure of bow net contact position.
Existing pantograph is the variation that compensates the bow net contact pressure by its gas circuit structure, its gas circuit structure is seen Fig. 2: be installed in the air bag (2) of framework (1) lower end of pantograph, and with the pipeline (20) of air bag (2) gas circuit bonded assembly uniform-pressure-drop valve successively (8), filter (6), shutoff valve (4) and train air-channel system; On the air bag (2) also gas be connected with pressure-limiting safety valve (11). pantograph is constant to the air pressure that the air bag of framework lower end charges into by uniform-pressure-drop valve (8), invariable static lifting power is provided, the variation that can slow down the contact pressure between bow net to a certain extent by this passive damping structure. but the contact pressure variation range between bow net still is bigger than normal, the needs of high speed train operation be can not adapt to, off-line accident or bow net fatigue damage still are easy to generate.
The utility model content
The purpose of this utility model just provides a kind of pantograph active control device; this system can change because of the contact pressure that various factors produces by the Active Compensation contact system; obviously reduce the fluctuation of contact pressure; guarantee that locomotive bow net contact in operational process is good; locomotive is subjected to levelling steady, thereby guarantees safe, reliable, the high-speed cruising of electrified railway.And it is implemented easily, and expense is low, is particularly suitable for high speed train.
The utility model is realized its goal of the invention, the technical scheme that is adopted is: a kind of pantograph active control device, the air bag that comprises the framework lower end that is installed in pantograph, and with the pipeline of air bag gas circuit bonded assembly uniform-pressure-drop valve successively, filter, shutoff valve and train air-channel system; On the air bag also gas be connected with pressure-limiting safety valve, its constructional feature is, air bag also is connected with the gas channel of pantograph control system, specifically consisting of of this air-path control system: solenoid directional control valve is serially connected on the gas circuit between uniform-pressure-drop valve and the filter, proportion directional valve one end is connected with solenoid directional control valve gas and links to each other, and the other end is connected with air bag gas; The control end of proportion directional valve links to each other with the mouth of computing machine gas circuit controller, and the vehicle-mounted mileage meter of anemoscope, GPS registration device, train links to each other with the respective input of vehicular speeds table with computing machine gas circuit controller.
Principle of work of the present utility model and working process are:
Solenoid directional control valve switched to the proportion directional valve be communicated with, and disconnect with uniform-pressure-drop valve, pantograph enters the ACTIVE CONTROL mode of operation.
Computing machine gas circuit controller is according to the span of the contact system in current operation highway section, the dropper spacing, the contact wire material, contact system information such as catenary material and tension force draw the desirable lifting amount that in traffic coverage position can guarantee the pairing pantograph of contact pressure of desirable bow net contact position.
During train operation, data according to the GPS registration device on the train, data in conjunction with the vehicle-mounted mileage meter and the vehicular speeds table of train, computing machine gas circuit controller draws train residing position in contact system, draws the desirable lifting amount of the cooresponding pantograph of contact pressure that can guarantee desirable bow net contact position in this position.
The pantograph information of wind direction, wind-force data and the input that obtains according to anemoscope on the data of vehicular speeds table and the train is such as the pantograph model, open and close mouthful service direction and whether use deflecting plate etc., and in conjunction with the contact system rigidity value of current location, calculate the current instantaneous lifting amount that is attached to the instantaneous lifting amount that produces on the pantograph and produces because of the different motion state of pantograph by wind-force, draw total lifting amount of pantograph according to this.
When total lifting amount was higher than desirable lifting amount, computing machine gas circuit controller drew gasbag pressure reduction value and discharge quantity according to this, and the control ratio direction valve is quantitatively exitted to air bag; On the contrary, then draw the gasbag pressure lift-off value and charge air control ratio direction valve is quantitatively inflated to air bag.Thereby the active open loop of filling, exitting control by air bag, can compensate the contact pressure differences that factor caused such as friction speed, the switching mouthful isoparametric influence of running state and windage of the inconsistent and train of contact system rigidity value in striding, thereby make the contact pressure of bow net contact position reach desirable optimal value and remain basically identical.
When the control system et out of order, manually control the electromagnetic switch button of solenoid directional control valve, switch to uniform-pressure-drop valve, pressurized air to air bag, adopts existing air-channel system work through uniform-pressure-drop valve, guarantees that train also can move.
Compared with prior art, the beneficial effects of the utility model are:
Under the control of computing machine gas circuit controller, actual change situation according to pantograph lifting amount, the charge air of air bag is respective change also, the stiffness variation of contact system and pantograph opened and closed a mouthful operation scheme in thereby the Active Compensation adjustment was striden, the contact pressure that factor such as air resistance and running velocity is brought changes, the contact pressure of bow net contact position is remained near the optimal value, fluctuation range is little, train is in the whole service process, bow, the net contact is good all the time, guaranteed the current carrying quality that pantograph is good, improved safety of railway transportation, reliability and stability, being particularly useful for high speed train. it does not need the existing contact net system of railway is carried out big transformation simultaneously, only need on pantograph, add a vehicle-borne computing machine gas circuit device and a proportion directional valve, just can carry out Speed Increased Reformed to existing line bow net system, expense is low.
Also be connected with pressure sensor on the above-mentioned air bag, the mouth of pressure sensor links to each other with the respective input of computing machine gas circuit controller.
The gasbag pressure that computing machine gas circuit controller records pressure sensor and the pairing gasbag pressure value of desirable lifting amount of this position compare, with determine quantitatively the filling of air bag, whether exit meets the requirements, when the gasbag pressure value is not enough, then inflate; Otherwise venting.Like this, then can realize the active feedback closed loop control of computing machine gas circuit controller to the airbag aeration amount, its control effect is more accurately reliable.
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described in further detail.
Description of drawings
Fig. 1 is the physical construction scheme drawing of existing and the utility model embodiment pantograph.
Fig. 2 is the gas circuit principle scheme drawing of existing pantograph.
Fig. 3 is the utility model embodiment gas circuit and circuit theory scheme drawing.
The specific embodiment
Embodiment
Fig. 1,2,3 illustrates, a kind of specific embodiment of the present utility model is: a kind of pantograph active control device, the air bag 2 that comprises framework 1 lower end that is installed in pantograph, and with the pipeline 20 of air bag 2 gas circuit bonded assembly uniform-pressure-drop valve 8 successively, filter 6, shutoff valve 4 and train air-channel system; On the air bag 2 also gas be connected with pressure-limiting safety valve 11.Air bag 2 also is connected with the gas channel of pantograph control system, specifically consisting of of this air-path control system: solenoid directional control valve 7 is serially connected on the gas circuit between uniform-pressure-drop valve 8 and the filter 6, proportion directional valve 9 one ends are connected with solenoid directional control valve 7 gas and link to each other, and the other end is connected with air bag 2 gas; The control end of proportion directional valve 9 links to each other with the mouth of computing machine gas circuit controller 5, and the vehicle-mounted mileage meter 53 of anemoscope 51, GPS registration device 52, train links to each other with the respective input of vehicular speeds table 54 with computing machine gas circuit controller 5.
Fig. 3 illustrates, and also is connected with pressure sensor 10 on the air bag 2, and the mouth of pressure sensor 10 links to each other with the respective input of computing machine gas circuit controller 5.
Claims (2)
1. pantograph active control device comprises the air bag (2) of framework (1) lower end that is installed in pantograph, and with the pipeline (20) of air bag (2) gas circuit bonded assembly uniform-pressure-drop valve successively (8), filter (6), shutoff valve (4) and train air-channel system; On the air bag (2) also gas be connected with pressure-limiting safety valve (11), it is characterized in that, described air bag (2) also is connected with the gas channel of pantograph control system, specifically consisting of of this air-path control system: solenoid directional control valve (7) is serially connected on the gas circuit between uniform-pressure-drop valve (8) and the filter (6), proportion directional valve (9) one ends are connected with solenoid directional control valve (7) gas and link to each other, and the other end is connected with air bag (2) gas; The control end of proportion directional valve (9) links to each other with the mouth of computing machine gas circuit controller (5), and the vehicle-mounted mileage meter (53) of anemoscope (51), GPS registration device (52), train links to each other with the respective input of vehicular speeds table (54) with computing machine gas circuit controller (5).
2. a kind of pantograph active control device as claimed in claim 1 is characterized in that: also be connected with pressure sensor (10) on the described air bag (2), the mouth of pressure sensor (10) links to each other with the respective input of computing machine gas circuit controller (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200830011U CN201457094U (en) | 2009-07-30 | 2009-07-30 | Active control device for pantograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200830011U CN201457094U (en) | 2009-07-30 | 2009-07-30 | Active control device for pantograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201457094U true CN201457094U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200830011U Expired - Lifetime CN201457094U (en) | 2009-07-30 | 2009-07-30 | Active control device for pantograph |
Country Status (1)
| Country | Link |
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| CN (1) | CN201457094U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063118A (en) * | 2010-12-09 | 2011-05-18 | 中国北车股份有限公司大连电力牵引研发中心 | Test device for simulating instantaneous offline of pantograph of electric locomotive |
| CN102721879A (en) * | 2012-05-07 | 2012-10-10 | 北京交通大学 | Locomotive pantograph active control device and experimental method |
| CN104590032A (en) * | 2014-11-28 | 2015-05-06 | 南车株洲电力机车有限公司 | Electric locomotive and controlling device and method for pantograph type current collector |
| WO2016119510A1 (en) * | 2015-01-27 | 2016-08-04 | 中车青岛四方机车车辆股份有限公司 | Detection method and system for pantograph arc based on train power supply system |
| CN106526393A (en) * | 2016-12-30 | 2017-03-22 | 西南交通大学 | Bow net electric contact simulation experiment apparatus |
| CN106696768A (en) * | 2016-12-28 | 2017-05-24 | 中车太原机车车辆有限公司 | Oil-scraping pantograph device special for overhead contact system |
| 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 |
| CN113568357A (en) * | 2021-08-20 | 2021-10-29 | 北京航空航天大学 | Air bag type pantograph net contact force compensation control method and 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 |
| 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 |
-
2009
- 2009-07-30 CN CN2009200830011U patent/CN201457094U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063118A (en) * | 2010-12-09 | 2011-05-18 | 中国北车股份有限公司大连电力牵引研发中心 | Test device for simulating instantaneous offline of pantograph of electric locomotive |
| CN102721879A (en) * | 2012-05-07 | 2012-10-10 | 北京交通大学 | Locomotive pantograph active control device and experimental method |
| CN104590032A (en) * | 2014-11-28 | 2015-05-06 | 南车株洲电力机车有限公司 | Electric locomotive and controlling device and method for pantograph type current collector |
| GB2543715B (en) * | 2015-01-27 | 2021-09-22 | Crrc Qingdao Sifang Co Ltd | Detection method and system for pantograph arc based on train power supply system |
| WO2016119510A1 (en) * | 2015-01-27 | 2016-08-04 | 中车青岛四方机车车辆股份有限公司 | Detection method and system for pantograph arc based on train power supply system |
| GB2543715A (en) * | 2015-01-27 | 2017-04-26 | Crrc Qingdao Sifang Co Ltd | Detection method and system for pantograph arc based on train power supply system |
| US10416222B2 (en) | 2015-01-27 | 2019-09-17 | Crrc Qingdao Sifang Co., Ltd. | Detection method and system for pantograph arc based on train power supply system |
| CN106696768A (en) * | 2016-12-28 | 2017-05-24 | 中车太原机车车辆有限公司 | Oil-scraping pantograph device special for overhead contact system |
| CN106696768B (en) * | 2016-12-28 | 2023-08-18 | 太原中车时代轨道工程机械有限公司 | Special oil scraping bow device for contact net |
| CN106526393A (en) * | 2016-12-30 | 2017-03-22 | 西南交通大学 | Bow net electric contact simulation experiment apparatus |
| CN106526393B (en) * | 2016-12-30 | 2023-08-11 | 西南交通大学 | Bow net electric contact simulation experiment device |
| 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 |
| CN113568357A (en) * | 2021-08-20 | 2021-10-29 | 北京航空航天大学 | Air bag type pantograph net contact force compensation control method and device |
| CN113568357B (en) * | 2021-08-20 | 2023-05-23 | 北京航空航天大学 | Air bag type pantograph and pantograph net contact force compensation control method and 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 |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |