CN207697507U - Contact reaction type pantograph control system - Google Patents
Contact reaction type pantograph control system Download PDFInfo
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- CN207697507U CN207697507U CN201721078578.4U CN201721078578U CN207697507U CN 207697507 U CN207697507 U CN 207697507U CN 201721078578 U CN201721078578 U CN 201721078578U CN 207697507 U CN207697507 U CN 207697507U
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- trolley head
- controller
- sensor
- fibre optic
- pressure
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Abstract
The utility model discloses a kind of contact reaction type pantograph control systems comprising fibre optic compression sensor, wear sensor, demodulator and controller.The utility model in the mounting post between pantograph arm and trolley head by increasing fibre optic compression sensor, detect the normal pressure that trolley head is transmitted downwards by mounting post in real time, and the contact force between trolley head and contact net is isolated according to the normal pressure, so that it is guaranteed that the contact force is controlled in reasonable range, so that the pressure feedback information of the utility model is more accurate, even if sleet occurs, when trolley head hangs ice, also trolley head gravity can be efficiently separated, to improve the accuracy of control.
Description
Technical field
The utility model is related to a kind of pantograph control systems more particularly to a kind of contact reaction type pantograph to control
System.
Background technology
The effect of pantograph is contacted with the good of contact net by pantograph carbon slide, is obtained electric energy from contact net, is
Vehicle provides power.Contact force stabilization between pantograph and contact net is the premise reliably flowed；Contact force, which crosses conference, to be caused
Carbon slipper crosses quick-wearing, or even ditch is drawn to damage carbon slipper；Contact force is too small to cause poor contact to lead to offline spark raising etc.
Problem.The friction speed that therefore, it is necessary to be run according to vehicle accurately exists the contact force control between pantograph and contact net
In certain range.
Existing pantograph is as recorded in Chinese patent CN103528624A, and fibre optic strain sensor therein is for surveying
The elastic strain for measuring elastic plate, to calculate section force value Fd；Optical fiber therein wears away sensor：Measure carbon slipper remaining wall
Degree, Equivalent Calculation residue carbon slipper quality；Optical fiber acceleration transducer therein：The acceleration for measuring carbon slipper, passes through Fine
=M*a obtains inertia force, and M is obtained by carbon slipper residual thickness, the acceleration of a, that is, carbon slipper.
But the hypothesis in above-mentioned patent is typically establishment, but under extreme weather conditions, such as by
This incidence relation is invalid in the case that pantograph bow head hangs ice, and therefore, Actual Control Effect of Strong is poor.
Utility model content
The utility model aim is to provide a kind of contact reaction type pantograph control system, and optical fiber pressure is used to pass
Sensor detects the contact force between pantograph and contact net, and accuracy of detection is high；And works as and contact force is controlled using closed loop
When processed, control effect is preferable.
The utility model solves technical problem and adopts the following technical scheme that：A kind of contact reaction type pantograph control system
System comprising：Fibre optic compression sensor, wear sensor, demodulator and controller；
The pantograph includes pantograph arm, trolley head and air bag；The pantograph arm connects the collection by mounting post
Dateline is used to support the trolley head；The trolley head is contacted with contact net, for receiving electric power；The air bag is for controlling
The movement of the pantograph arm, to realize the lifting of the trolley head；
The air bag includes intake valve, air bleeding valve and pressure sensor, can be to the gas when the intake valve is opened
Intracapsular portion's filling gas promotes intracapsular pressure, increases the trolley head；And when the air bleeding valve is opened, out of air bag
Gas is discharged in portion, reduces intracapsular pressure, reduces the trolley head；The pressure sensor signal is connected to the controller,
With by the pressure transmission of the air bag to the controller；The intake valve and air bleeding valve are all connected to the controller, and by
The controller control；
The wear sensor is aciculiform, is embedded in carbon steel item, and each one in carbon steel item or so；Or it is mounted on
Carbon steel side, the abrasion condition for detecting carbon steel item, and the signal detected are sent to controller, while for marking
The read access time of fibre optic compression sensor marks；
The fibre optic compression sensor is set in the mounting post, and for detect in real time trolley head and pantograph arm it
Between pressure, and export corresponding signal；
The fibre optic compression sensor is connected to demodulator by optical fiber, and the demodulator is converted to the optical signal pair
The electric signal answered；
The demodulator signal is connected to the controller, telecommunications of the controller transmitted by the demodulator
Number, the size for the normal pressure that the fibre optic compression sensor is detected is calculated, and according to the size of the normal pressure, control contact force Fc
For optimal contact force.
Optionally, electric signal of the controller transmitted by the demodulator calculates the fibre optic compression sensor institute
The size of the normal pressure of detection, and according to the size of the normal pressure, control contact force Fc is that optimal contact force is specially：
The fibre optic compression sensor is two, and the normal pressure that the fibre optic compression sensor positioned at left side detects is Fb,
Fb=f1(t), the normal pressure detected positioned at the fibre optic compression sensor on right side is Fr, Fb=f2(t), wherein t is the time；Then：
Fb+Fr=Fg+Fc+Ft, wherein Fg are trolley head gravity, and Fc is contact force, and Ft is bow net elastic force；
When the t0 moment that pantograph is not contacted with contact net, Fg=Fb+Fr=f1(t0)+f2(t0)；
Fc=Fb+Fr-Fg-Ft at any time；
The controller is according to known preset function Fc=f3(v) optimal contact force is obtained, wherein v is speed；And
And the opening and closing of the control intake valve and air bleeding valve, the height of trolley head is raised and lowered, so that contact force Fc is most
Excellent contact force.
Optionally, when Fg changes, it is assumed that fibre optic compression sensor is symmetrical with the emphasis of pantograph arm, and two
The distance between a fibre optic compression sensor is L, and is d at a distance from the positional distance midpoint that is contacted with pantograph of power grid, then：
Fb × (L/2+d)=Fg × d+Fr (L/2-d)；Formula (1)；
Fg × L/2+Fc × (L/2+d)=Fr × L；Formula (2)；
Fg × L/2+Fc × (L/2-d)=Fb × L；Formula (3)；
Known to composite type (1), formula (2) and formula (3)：
Fc=L × | Fr-Fb |/2d；Formula (4)；Formula (4) is substituted into formula (2) or formula (3), it can be in the hope of Fg.
Optionally, when the RMS value of the Ft separated it is bigger than normal to a certain degree when, it is believed that bow net elasticity is excessive, as
The basis for estimation of pantograph and catenary fault.
The utility model has the advantages that：The utility model passes through the installation between pantograph arm and trolley head
Increase fibre optic compression sensor on column, detects the normal pressure that trolley head is transmitted downwards by mounting post in real time, and just according to this
Pressure isolates the contact force between trolley head and contact net, so that it is guaranteed that the contact force is controlled in reasonable range, by
This makes the pressure feedback information of the utility model more accurate, even if sleet occurs, when trolley head hangs ice, also can effectively divide
From trolley head gravity, to improve the accuracy of control.
Description of the drawings
Fig. 1 is the structural schematic diagram of the installation site of the fibre optic compression sensor of the utility model；
Fig. 2 is the controller of the utility model and the connection relationship diagram of coupled component；
Label is specially in attached drawing：1- trolley heads；2- pantograph arms；3- power grids；4- fibre optic compression sensors.
Specific implementation mode
The technical solution of the utility model is further elaborated with reference to embodiment and attached drawing.
Embodiment 1
Present embodiments provide a kind of contact reaction type pantograph control system comprising fibre optic compression sensor,
Wear sensor, demodulator and controller.
The pantograph includes pantograph arm, trolley head and air bag；The pantograph arm is connected to described by mounting post
On trolley head, it is used to support the trolley head, the trolley head is contacted with the contact net, for receiving electric power, and in institute
It states and generates contact force between trolley head and contact net, the air bag is used to control the movement of the pantograph arm, to realize
State the lifting of trolley head.
In the present embodiment, the air bag includes intake valve, air bleeding valve and baroceptor, when the intake valve is opened,
It can be to the inside air bag filling gas so that air bag expands, and increases the trolley head, and further such that contact force increases
Greatly；And when the air bleeding valve is opened, gas is discharged from inside air bag so that deflated balloon reduces the trolley head, goes forward side by side
One step makes contact force reduce, and therefore, can realize the adjusting of contact force by the opening and closing of the intake valve and air bleeding valve；Institute
It states baroceptor to be connected with the controller in a signal way., by the pressure transmission of the air bag to the controller.
The wear sensor is aciculiform, is embedded in carbon steel item, and each one at carbon steel item or so 1/4；Or
It is mounted on carbon steel side, the abrasion condition for detecting carbon steel item, and the signal of detection is sent to the controller, at this time
The wear sensor is connected with the controller in a signal way., and the wear sensor is additionally operable to label fibre optic compression sensor simultaneously
Read access time label.When the residual thickness of carbon steel item after wear is less than 5mm, driver is prompted to replace carbon steel
Item.
The fibre optic compression sensor is set in the mounting post, and for detect in real time trolley head and pantograph arm it
Between pressure, and export corresponding optical signal.
The fibre optic compression sensor is connected to demodulator by optical fiber, and the demodulator is converted to the optical signal pair
The electric signal answered.
The demodulator signal is connected to the controller, and the controller calculates the optical fiber pressure according to the electric signal
The size for the normal pressure that force snesor is detected is located at the optical fiber in left side for example, when the fibre optic compression sensor is two
The normal pressure that pressure sensor detects is Fb, Fb=f1(t), wherein t is the time, and the fibre optic compression sensor for being located at right side is examined
The normal pressure measured is Fr, Fr=f2(t), wherein t is the time, then：Fb+Fr=trolley heads gravity (Fg)+contact force (Fc)+bow
Elasticity of net power (Ft).
When the t0 moment that pantograph is not contacted with contact net, Fg=Fb+Fr=f1(t0)+f2(t0)；
Then：Contact force (Fc)=Fb+Fr- trolley heads gravity (Fg)-bow net elastic force (Ft)；
In the present embodiment, the control core of the contact reaction type pantograph control system be Fc can stablize by
As small as possible under conditions of stream, Ft is also as small as possible.But it is paradox between Fc and Ft, Fc reductions can cause Ft to increase.Fc mistakes
Conference causes the abrasion of carbon steel item to be accelerated.
When Fg changes (such as sleet occurring, when trolley head hangs ice), it is assumed that fibre optic compression sensor is with trolley head
Midpoint it is symmetrical, and the distance between two fibre optic compression sensors are L, and the positional distance that power grid is contacted with trolley head
The distance at midpoint is d, then：
Fb × (L/2+d)=Fg × d+Fr (L/2-d)；Formula (1)；
Fg × L/2+Fc × (L/2+d)=Fr × L；Formula (2)；
Fg × L/2+Fc × (L/2-d)=Fb × L；Formula (3)；
Known to composite type (1), formula (2) and formula (3)：
Fc=L × (Fr-Fb)/2d；Formula (4)；Formula (4) is substituted into formula (2) or formula (3), it can be in the hope of Fg, to effectively
Fc is detached with Fg.
The controller is according to known preset function Fc=f3(v) optimal contact force Fc is obtained, that is, Fc=f3(v)
For the function of known preferred speed and contact force.Wherein v is speed；The control targe of the utility model is controlled by controller
The intake valve, outlet valve regulation gasbag pressure, it is final to realize control Fc and f3(v) closest, as a result, in the utility model,
According to the Fb and Fr detected in real time, the opening and closing of the intake valve and air bleeding valve is controlled, the height of trolley head is raised and lowered, from
And so that contact force Fc is optimal contact force.
In the present embodiment, Ft filters out zero by the slope of Fb and Fr.
The utility model is come real by increasing fibre optic compression sensor in the mounting post between pantograph arm and trolley head
When the normal pressure transmitted downwards by mounting post of detection trolley head, and isolated between trolley head and contact net according to the normal pressure
Contact force, so that it is guaranteed that the contact force is controlled in reasonable range, so that the pressure feedback letter of the utility model
Breath is more accurate, even if sleet occurs, when trolley head hangs ice, can also efficiently separate trolley head gravity, to improve control
Accuracy.
It in the present system can also be very square additionally, due to pressure gap caused by the difference of circuit, the difference of vehicle itself
Just adaptation and adjustment.
The sequencing of above example is only for ease of description, can not represent the quality of embodiment.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacement；And these modifications or replacements, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (1)
1. a kind of contact reaction type pantograph control system, which is characterized in that including：Fibre optic compression sensor, abrasion pass
Sensor, demodulator and controller；
The pantograph includes pantograph arm, trolley head and air bag；The pantograph arm connects the trolley head by mounting post,
It is used to support the trolley head；The trolley head is contacted with contact net, for receiving electric power；The air bag for control it is described by
The movement of pantograph arm, to realize the lifting of the trolley head；
The air bag includes that intake valve, air bleeding valve and pressure sensor can be into the air bags when the intake valve is opened
Portion's filling gas promotes intracapsular pressure, increases the trolley head；And when the air bleeding valve is opened, arranged from inside air bag
Go out gas, reduces intracapsular pressure, reduce the trolley head；The pressure sensor signal is connected to the controller, will
The pressure transmission of the air bag is to the controller；The intake valve and air bleeding valve are all connected to the controller, and by described
Controller controls；
The wear sensor is aciculiform, is embedded in carbon steel item, and each one in carbon steel item or so；Or it is mounted on carbon steel
Side, the abrasion condition for detecting carbon steel item, and the signal detected are sent to controller, while for marking optical fiber
The read access time of pressure sensor marks；
The fibre optic compression sensor is set in the mounting post, and for detecting between trolley head and pantograph arm in real time
Pressure, and export corresponding signal；
The fibre optic compression sensor is connected to demodulator by optical fiber, and the demodulator exports the fibre optic compression sensor
Optical signal be converted to corresponding electric signal；
The demodulator signal is connected to the controller, electric signal of the controller transmitted by the demodulator, meter
The size for the normal pressure that the fibre optic compression sensor is detected is calculated, and according to the size of the normal pressure, control contact force Fc is most
Excellent contact force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721078578.4U CN207697507U (en) | 2017-08-25 | 2017-08-25 | Contact reaction type pantograph control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721078578.4U CN207697507U (en) | 2017-08-25 | 2017-08-25 | Contact reaction type pantograph control system |
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| Publication Number | Publication Date |
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| CN207697507U true CN207697507U (en) | 2018-08-07 |
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ID=63020845
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721078578.4U Active CN207697507U (en) | 2017-08-25 | 2017-08-25 | Contact reaction type pantograph control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487187A (en) * | 2017-08-25 | 2017-12-19 | 诺和君目（北京）科技有限公司 | Contact reaction type pantograph control system |
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2017
- 2017-08-25 CN CN201721078578.4U patent/CN207697507U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487187A (en) * | 2017-08-25 | 2017-12-19 | 诺和君目（北京）科技有限公司 | Contact reaction type pantograph control system |
| CN107487187B (en) * | 2017-08-25 | 2023-06-30 | 诺和君目（北京）科技有限公司 | Contact pressure feedback type pantograph control system |
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