CN108025649A - Monitoring to being designed to the state against the current-collector slide plate of electric car link friction - Google Patents
Monitoring to being designed to the state against the current-collector slide plate of electric car link friction Download PDFInfo
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- CN108025649A CN108025649A CN201680039122.9A CN201680039122A CN108025649A CN 108025649 A CN108025649 A CN 108025649A CN 201680039122 A CN201680039122 A CN 201680039122A CN 108025649 A CN108025649 A CN 108025649A
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- slide plate
- catenary
- distribution
- sensor device
- vehicle
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- 238000012544 monitoring process Methods 0.000 title claims description 35
- 238000009826 distribution Methods 0.000 claims description 91
- 238000001514 detection method Methods 0.000 claims description 41
- 238000004804 winding Methods 0.000 claims description 33
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 238000005299 abrasion Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 206010017076 Fracture Diseases 0.000 description 16
- 208000010392 Bone Fractures Diseases 0.000 description 15
- 238000005259 measurement Methods 0.000 description 8
- 238000005336 cracking Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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Classifications
-
- 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
- B60L5/20—Details of contact bow
- B60L5/205—Details of contact bow with carbon contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R41/00—Non-rotary current collectors for maintaining contact between moving and stationary parts of an electric circuit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
Abstract
A kind of system for being used to monitor the state for being designed to the current-collector slide plate (1) against powered contact line (2) friction, including：At least one sensor device (3), it is designed to be at least partially installed in slide plate, only to extend in a part for the length of slide plate, the equipment is arranged to when contact line is contacted with the part of the slide plate, at least when the wear height of the slide plate in the part of the slide plate alreadys exceed threshold value, the path of contact line is detected, sensor device, which is also arranged such that, can measure at least two different wear heights.
Description
It is intended to transmit slide plate against the electric current of catenary distribution (catenary wire) friction the present invention relates to monitoring
(strip) state.
In general, pantograph (pantograph) system includes：Slide plate, its mainly be made of carbon or be made completely of carbon and
It is intended to match somebody with somebody link friction against powered catenary under voltage to provide electric current to the electro-motive vehicle for being provided with slide plate.
Catenary distribution is typically installed as forming zigzag along expected displacement path.Slide plate perpendicular to or substantially hang down
Directly extend on the longitudinal direction in the immediate movement direction of vehicle.Since the zigzag is installed, catenary distribution is relative to the position
Direction is moved to set with being slightly slanted.Therefore, catenary distribution only represent slide plate length a part contact area on cunning
Plate contacts, and when the vehicle for being provided with pantograph is mobile by driving, which travels along slide plate.
Set by the zigzag, it is possible thereby to wish and be kept substantially in contact area in displacement process identical
Situation is compared to preferably distribution abrasion.In other words, with catenary distribution compared with displacement path is essentially straight, abrasion wheels
Exterior feature is evenly.
What is sought is that evaluation is worn in order to safeguard.
In general, it is arranged to installation seal pipe made of metal, carbon etc. inside slide plate.It is empty that this pipe is filled with compression
Gas.When a failure occurs, pipe may be broken and can detect that thing followed pressure declines.After this detection, connect
Reduction pantograph to avoid any damage is caused to catenary.
The system still maintains relatively inaccurate in the detection, (such as to be slided this is because there are premature failure to pickup
In the case of the relatively weak influence of plate or slight damage) and/or the risk that is broken too late.Although it is real even to there is pickup slide plate
(such as in the case where material is been considerably stripped relatively) no longer available on border but without the risk of fracture.
In addition, the system causes pantograph to disable immediately, and it is practically impossible to provide and organize the maintenance to slide plate.
Document JP57-80201 describes a kind of detecting system, wherein, conductive wires are installed in pickup slide plate, this is led
Electrical wiring forms the U-shaped of its branch Longitudinal extending in the whole length of slide plate.When wear it is enough when, catenary distribution then with
The distribution electrical contact of U-shaped is formed, and detection circuit makes it possible to the electric current that detection is produced by catenary distribution.Corresponding to the cunning
Then the pantograph of plate disables at once.
However, it is still desirable to which a kind of state for being used to monitor slide plate is made it possible to ensure that to electrically driven vehicles movement
When abrasion tracking system.
A kind of system of the state for monitoring current transmission slide plate is proposed, the slide plate is mainly or entirely made of carbon
And it is intended to be installed on electro-motive vehicle, and it is electric to be provided to the vehicle with link friction against catenary under voltage
Stream.Pantograph pan is extendable in the longitudinal direction and on the electric vehicle so that the direction perpendicular to or substantially vertically
In the direction of displacement of vehicle.Catenary distribution is obliquely set relative to the direction of displacement of vehicle so that catenary distribution is only
Represent to make electrical contact with slide plate on the contact area of a part for the length of slide plate, and it is driven in vehicle on direction of displacement
Advance when mobile along slide plate.Monitoring system includes：
At least one sensor device, it is intended to be at least partially installed in slide plate only to occupy the length of slide plate
A part, the equipment are designed to when contact area corresponds to the slide plate part, at least at the level in slide plate part
When the wear height of slide plate exceedes threshold value, detect that catenary is crossed.The sensor device is also devised to make it possible to measure
At least two different wear heights.
The part of the slide plate length occupied by sensor device can for example represent the 0.01% to 20% of slide plate length, have
Sharp ground is between the 0.1% to 5% of slide plate length.
The part of the slide plate length occupied by sensor device for example can correspond to the length between 0.1 millimeter and 10 centimetres
Degree, the advantageously length between 1 millimeter and 1 centimetre.
It thus provides the point as sensor device, it can measure at least two wear levels, and can examine
At the time of survey catenary is crossed.The monitoring system makes it possible to perform abrasion tracking, this is because (one or more) sensings
Device equipment can measure several wear heights.Further, since detect crossing for catenary distribution, it is possible to by abrasion and horizontal stroke
More mileage is relatively easily associated.In fact, on direction of displacement distance phase of the catenary distribution between zigzag extreme value
The zigzag of rule is arranged.Therefore, it can be assumed that the operating range between the crossing of catenary distribution is detected twice, and
Therefore the relatively easily abrasion of every kilometer of evaluation traveling.
For example, can provide to being counted at the time of catenary is crossed between the detection twice of wear height, so as to
Abrasion of the evaluation per travel distance.
Can be based on the detection moment crossed in catenary signal (such as based on the signal these moment amplitude)
Advantageously to perform the measurement of the wear height different at least two.
Meaned by " electrical contact "：Because there is contact (slide plate contact catenary distribution) in the mechanical sense of term
Or because slide plate and catenary distribution are close enough to form and ensure the biography of electric current at the level of the contact area of electric arc
It is defeated, so electric current is collected.
In advantageous embodiment, sensor device can include at least one transport element.
It can be advantageous to detection catenary is crossed after in the electric current produced by catenary distribution is by transport element.
The electric current produced by catenary distribution can during being made electrical contact with sensor device by one or more transport elements, and
And the electric current can be detected and passed through.
The present invention is certainly not limited to such sensor.Such as can be arranged on arranged in the bellmouth of slide plate it is bright
Sensor is spent, which makes it possible to measure wear height when contact area does not correspond to hole, and the brightness passes
Sensor is sensitive enough and quickly corresponds to the decline of the brightness crossed of catenary distribution with measurement.The system it is possible thereby to so that
Abrasion can be made consistent with distance travelled.
In advantageous embodiment, sensor device can include at least two transport elements, and each transport element exists
The slide plate height associated with the transport element is extended up in slide plate.
Therefore, as long as wear levels are not up to the slide plate height corresponding to transport element, would not be produced from the transport element
Raw measuring signal.
The present invention is never limited to using several transport elements each with associated wear height.Such as tool can be arranged on
There is the relative resistance element that greatest wear height is extended up on the direction of vertical component.By the electronics produced from catenary distribution
The resistance run into is accordingly dependent on the length for the resistive element to be crossed, and is accordingly dependent on and is set corresponding to the sensor
Slide plate height at standby slide plate part.
In advantageous embodiment, set：Multiple sensor devices, it is intended to be installed on same slide plate so that
It is mutually different corresponding to the part of the slide plate length of the plurality of sensor device.In other words, sensor can be distributed along slide plate
Equipment.Therefore, wearing tracking can be more accurate, and can preferably estimate the uniformity along the abrasion of slide plate in addition.
Therefore, which can be relatively accurate, or even in the part in turning to be crossed or the path of tunnel type, its
In, catenary distribution is be easily moved relative to slide plate in the scope of a part for corresponding only to slide plate length.
Certainly, the present invention is never limited to this embodiment, and can for example set with for example in slide plate
Between single sensor device system.
Advantageously and in a non-limiting manner, transport element can be mainly or entirely made of copper.
Advantageously and in a non limiting manner, the element of same sensor device can be by insulator (for example, pottery
Porcelain or glass fibre) it is separated from each other.
Advantageously and in a non-limiting manner, each transport element can be sheet.
Sensor device can be installed advantageously so that at least one conductive sheet, and preferably each conductive sheet is set
Put in there is the plane of normal vector substantially on direction of displacement.
Advantageously and in a non limiting manner, at least one sensor device can include in pairs being separated by insulator
Piece stacked body.The stacked body can be advantageously embodied in resin.
Advantageously and in a non limiting manner, in the case of several sensor devices, it can be provided will at least two
A sensor device, and all sensor devices are preferably connected to single cable, it is enable to reduce monitoring
Circuit it is huge.
In advantageous embodiment, monitoring system can include：
Electronic measuring circuit, it includes the first transformer winding and can be transmitted the generator of AC electric currents, electronic measuring circuit quilt
It is designed so that at least a portion of the electric current by generator transmission passes through first winding；
Power detection circuit, the circuit include：Second transformer winding；The reference branch of the current potential of detection circuit, the branch
It is designed to contact with slide plate or the conduction device of the micro resistance with contacting slide plate contacts so that is examined when being contacted with slide plate
The ground voltage of slowdown monitoring circuit is equal to or is in close proximity to the voltage of catenary distribution；And at least one sensor device；
Transformer including the first winding and the second winding, for by the ground voltage of electronic measuring circuit and power detection circuit
Isolation；And
For measuring the device of the intensity across the voltage of the terminal of the first winding and/or through first winding.
Therefore, the voltage in detection circuit can be of a relatively high and relative to the earth alterable, this is because the circuit
Grounding connection to slide plate.For example, the signal of 25000V AC or 1500V DC can be to pass through catenary distributions under 50Hz.Cause
This, in the case of there is additional electrical contact between a part for detection circuit and slide plate, such as circuit with thread breakage it
Afterwards, overvoltage will not be transmitted, this is because the supplementary contact is electrically being equivalent to the ground connection that is connected to detection circuit.
Refer to that one (or several) conduct herein by " conduction device of micro resistance " and " be equal to or be in close proximity to "
Element (for example, clamp), it is resisted with reference to the sufficiently low resistance between branch and slide plate, so as to the ground voltage of detection circuit
It is no more than 5% with the voltage deviation of slide plate, the advantageously voltage deviation with slide plate is no more than 2%.
There can be relatively low crest voltage (for example, 3 volts relative to the supply voltage by the signal of generator injection
It is special or 5 volts).
Electronic measuring circuit can have or can not have floating ground (such as to be connected to chassis or the earth of railway locomotive
Ground connection).
The abrasion crossed with slide plate of catenary can produce detection circuit via (one or more) sensor device
It is raw to influence, and therefore influence the voltage across the terminal collection of the winding of measuring circuit side.
Detection circuit can advantageously comprise in addition to (one or more) measuring apparatus to slide plate state sensitive
Other detecting elements.
For example, detection circuit can also include being intended to install (for example, inside slide plate or on the surface of slide plate along slide plate
On) electric insulation distribution.In the case where slide plate cracks or is broken, which is easy to be broken, and thus influences generated AC letters
Number transmission, and therefore influence the voltage across the terminal of the winding of transformer.
If for example, the distribution is installed with capacitor in parallel, in the case of with thread breakage, equivalent resistance increases, and
And the voltage of the terminal across the first winding reduces.It is possible thereby to detect this by analyzing the signal across the terminal measurement of the winding
The fracture of distribution.
In one embodiment, detection circuit can include an at least additional insulated wire, described additional exhausted
Edge distribution is intended to install along slide plate (such as inside slide plate or on surface of slide plate), is installed in parallel with insulated wire and is in
Mechanical resistance characteristics now different from insulated wire.Especially, the fracture tolerance of an insulated wire and other insulated wires
Can be different.
Since this of more insulated wires is installed in parallel, these distributions show mechanical resistance characteristic different from each other, can
Energy wishes to detect the cracking of slide plate before slide plate fracture.In fact, in the case of cracking, it is contemplated that more fragile matches somebody with somebody
Line is broken first, so as to cause the change of equivalent resistance, and therefore causes the change across the signal of the terminal measurement of transformer.
As long as can be arranged to, an at least insulated wire is still intact, as long as or more mechanical resistance insulated wire still
It is so intact, it is possible to pantograph is placed into appropriate location, is enable to avoid being related to as in the prior art
The inconvenience surprisingly reduced of pantograph.
Every insulated wire can include conductive core and insulating sheath.
Conductive core can show sufficiently high linear resistance, so as to detect the change of equivalent resistance.As an alternative, may be used
To be arranged to install every insulated wire with corresponding resistor in series, to allow to detect the fracture of distribution.As an alternative, it is special
It is not when circuit includes single insulated wire, its fracture is examined by the zero crossings of the signal of the terminal across the first winding
Survey, low linear resistance can be presented in the core of distribution, and can save the resistor that installation is connected with the insulated wire.
Advantageously and in a non limiting manner, detection circuit is designed such that an at least insulated wire and extremely
One or more output terminals of a few sensor device are connected to (or with that can connect in the case of catenary wiring contacts
Be connected to) slide plate or contact slide plate micro resistance conduction device.Therefore, save provide by these detecting elements (one or
More) output terminal be connected to detection circuit ground connection output distribution.In other words, there is provided have end detection circuit and
Non- closed-loop, the end when in use between at least part in contacted with slide plate or the biography of the micro resistance with contacting slide plate
Lead device contact.Installation limits the inverted risk of distribution it is possible thereby to simpler in addition.
Advantageously, when setting several detecting elements, these elements can be connected in parallel to each other installation or with it is one or more
A resistive element is installed in parallel.If one of these detecting elements being installed in parallel are failed or are broken due to slide plate state
It is bad, then by the signal between the terminal that still can measure the first winding.Therefore, it can be provided send the warning of type of alarm
Signal, rather than cause the reduction of pantograph immediately.
Advantageously, when being installed in parallel as setting, at least one bypass section between the second winding and detecting element
Point can be located among or on slide plate.In other words, detection circuit can be included in single defeated between the second winding and slide plate
Enter distribution.Second winding can by be penetrated into the single distribution in slide plate or on slide plate be connected to it is (one or more
It is a) detecting element.
In addition, (or it can be connected via catenary distribution when (one or more) output terminal of detecting element is connected to
To) slide plate or when contacting micro- conduction device of slide plate, detection circuit can include being penetrated into single distribution in slide plate.
More generally, the second winding can be connected by being penetrated into the single input distribution in slide plate or on slide plate
To (one or more) detecting element, and in the case of with catenary wiring contacts, each detecting element can include
It is connected to slide plate or the output terminal connectable to slide plate.
Advantageously, an at least insulated wire and at least one sensor device can be from single input distribution series connection
Or install in bypass mode, to be connected to the second winding.Therefore, while extract and close from the signal between the terminal of the first winding
In the item of information and item of information on abrasion of cracking or fracture.
Advantageously, the processing unit that communicates with least one sensor device can also be included by monitoring system, at these
Reason device (for example, all or part in one or more processors) is designed to be based on from least one sensor device
At least one signal received identifies two continuous moment that catenary is crossed, by between preset distance and these moment
Duration be associated, and when having reached at least two wear heights, based at least one signal received
Come estimate to advance every kilometer slide plate abrasion.
In addition it also proposed a kind of pantograph group including all monitoring system and electric current transmission slide plates as described above
Part.Monitoring system may be mounted on slide plate.
In addition it also proposed a kind of electro-motive vehicle (such as railway locomotive including all pantograph components as described above
Deng).
In addition a kind of method of the state for monitoring current transmission slide plate is also proposed, the electric current transmission slide plate is main
Or be made completely of carbon, it is extendable in the longitudinal direction, on electro-motive vehicle so that the longitudinal direction perpendicular to or substantially
Perpendicular to the direction of displacement of vehicle, and it is intended to match somebody with somebody link friction against catenary under voltage, to provide electric current to the vehicle,
Catenary distribution is obliquely set relative to the direction of displacement of vehicle so that catenary distribution only represent slide plate length one
Made electrical contact with partial contact area with slide plate, and its vehicle when mobile by driving on direction of displacement along slide plate row
Into method includes：
At least one signal, and preferably individual signals are received from least one sensor device, it is described at least one
Sensor device is at least partially installed in slide plate, and only to occupy a part for the length of slide plate, which is designed to
When contact area corresponds to the slide plate part, at least the wear height of the slide plate at the level in slide plate part exceedes threshold value
When, detect that catenary is crossed, and the sensor device is also devised to that at least two different wear heights can be measured.
Method can advantageously comprise following processing step：During the processing step, by preset distance and stretched wire
Two continuous moment that line crosses signal are associated, and during the processing step, based on performed at least two
Elevation carrection come estimate to advance every kilometer slide plate abrasion.
Method can also include the following steps：It is formulated as the function of the estimation；And passed to the device of control pantograph
The message of the defeated reduction for causing pantograph.
This method can be for example by the processing unit of processor type (for example, microcontroller, microprocessor, DSP (" numbers
Word signal processing ") etc.) realize.
Therefore, it is proposed to a kind of processing unit, it includes：For performing the reception device of above-mentioned receiving step (for example, defeated
Inbound port, input pin etc.)；For performing the processing unit (for example, processor core etc.) of above-mentioned estimating step；And transmitting dress
(for example, output port, output pin etc.) is put, for the control device of the signal transmission of formulation to pantograph (such as to be walked
Into motor).
In addition, it is also proposed that a kind of computer program product, it includes such as giving an order：When described instruction is performed by processor
The step of Shi Zhihang all method as described above.
The present invention will preferably be described with reference to following attached drawing, these attached drawings represent the non-limit provided by way of example
Property embodiment processed.
Fig. 1 is schematically shown when being installed in the pickup slide plate with catenary wiring contacts according to the present invention one
The monitoring system of a embodiment.
Fig. 2 shows the example of the sensor device of the monitoring system schematically shown in Fig. 1 in more detailed manner.
Fig. 3 is the view of the exemplary sensor device for the monitoring system for being depicted schematically from above Fig. 1 and Fig. 2,
When being installed on slide plate, also partly illustrate partly represented and with the slide plate of catenary wiring contacts.
Fig. 4 schematically shows exemplary monitoring system according to embodiment of the present invention.
Fig. 5 schematically shows the exemplary monitoring system of another embodiment according to the present invention.
Fig. 6 is the terminal for the first winding for showing the transformer across monitoring system according to embodiment of the present invention
The figure of the exemplary form of the voltage signal of measurement.
Fig. 7 is the logic chart for showing illustrative methods according to embodiment of the present invention.
Different attached drawings can refer to the same or similar element using identical reference numeral.
With reference to Fig. 1, mainly or entirely the slide plate 1 made of carbon extends along the longitudinal direction for corresponding to vector x herein.
The carbon slipper is horizontal, the direction of displacement relative to the direction of displacement for the electric traction vehicle for being provided with the slide plate
Corresponding to vectorial y.
In the present specification, term "front", "rear" refers to before being provided with the vehicle of described monitoring system on it
Rear direction.Vertical direction can be the direction of gravity vector.Axis x, y, z corresponds respectively to longitudinal direction, the vehicle of pickup slide plate
Direction of displacement and vertical direction.In the accompanying drawings, (it is installed on flat and horizontal floor to monitoring system on locomotive
On) and without turn (turning-free) position at, that is to say, that, it is assumed that pickup slide plate is along being orthogonal to vertical direction
With the direction Longitudinal extending of direction of displacement.Certainly, in fact, longitudinal direction and direction of displacement residing for pickup slide plate each other may
It is not exclusively orthogonal, and may not be fully horizontal by the plane that the two directions limit.
Slide plate 1 be arranged on high pressure catenary distribution 2 (such as 1500V or 25000V) in the following, and as the vehicle moves, it is sliding
Plate 1 can be contacted with catenary distribution 2, so as to collect the electric current needed for vehicle traction.
Catenary distribution 2 is usually arranged along the expectation path of vehicle with zigzag, that is to say, that when vehicle in y-direction
When mobile, catenary distribution 2 is scanned in the x direction relative to slide plate 1.Therefore, slide plate 1 by catenary distribution 2 longitudinally
Cross, thus allow the abrasion for preferably distributing slide plate.
The monitoring system of the embodiment includes multiple sensor devices 3, and each sensor device occupies the length of slide plate 1
Relatively limited part.For example, slide plate 1 can extend almost one meter in the x direction, and each sensor device 3 can have
There is the diameter of several millimeters (such as 3 millimeters).
It is noted that attached drawing is schematical, and ratio does not meet priori.
Sensor device 3 is positioned along at the diverse location of slide plate 1, so that when vehicle is mobile by driving, these biographies
Sensor equipment is intended to contact successively with catenary distribution 2.
Each sensor device 3 is including mark in Fig. 2,6,7,8,9 transport element.
When catenary distribution 2 and conducting element contacts, the electric current produced by the catenary distribution enters conduction member
In part.Transport element is connected to the processing equipment of Local or Remote via cable 4, and therefore can be detected by the processing equipment
The electric signal produced by catenary distribution 2, is enable to detection catenary distribution at the level of respective sensor equipment
Cross.As further illustrated with reference to Fig. 4 and Fig. 5, cable 4 forms the electro-detection that ground voltage is equal to the voltage of slide plate
A part for circuit.At work, slide plate is contacted with distribution 2 so that the ground voltage of detection circuit is the electricity of catenary distribution 2
Pressure.
Contact between catenary distribution 2 and the transport element in element 5,6,7,8,9 is equivalent to transport element ground connection,
So as to change the equivalent resistance of detection circuit.
With reference to Fig. 2 and Fig. 3, each sensor device 3 includes being made of copper herein and being substantially orthogonal to y directions
Multiple transport elements 5 of the sheet of extension in plane.
Resistor 15,16,17,18,19 is connected to each in these corresponding copper sheets 5,6,7,8,9, is additionally coupled to
Cable 4.
Therefore, if the wear levels of slide plate cause such as piece 5 and 6 to match somebody with somebody during catenary distribution is crossed with the catenary
Line contacts and causes slide plate 7,8,9 to keep insulating with catenary distribution during the distribution is crossed, then is got in catenary distribution
Expired received electric signal indirectly is by with the value depending on resistor values 15 and 16.
Resistor 15,16,17,18,19 can have different values, or can not have different values.
The electric signal of measurement depends on effective wear height during catenary is crossed.Therefore, the electric signal on cable 4
There can be the shape of one group of spike, each spike corresponds to catenary distribution crossing above sensor device, and point
The amplitude at peak represents wear levels.
By by the time interval between two spikes and preset distance (depend on catenary distribution zigzag install with
And depending on the interval between two neighboring sensor devices on slide plate) associated, it will can wear associated with distance travelled.
With reference to Fig. 3, sensor device 3 can have the diameter of several millimeter magnitudes, and for example corresponding under reset condition
Slide plate height 50% to 90% height, such as between several millimeters and several centimetres.
Catenary distribution can have the diameter of centimetres, that is to say, that contact area can extend in the x direction
Several millimeters (such as 2mm or 3mm).
Carbon slipper 1 can have the width for example between 35 millimeters and 60 millimeters in y-direction.
Copper sheet 5,6,7,8,9 can be insulated from each other by ceramic material, and the stacked body including these copper sheets and ceramics
It can be embedded in resin, resin adds the component of stacked body thus with a diameter of about 3 millimeters of section.
Back to Fig. 2, the connection between copper sheet 5,6,7,8,9 and corresponding resistor 15,16,17,18,19 can pass through
Weld at relatively high temperature to realize.
The invention is not restricted to the sensor device of predetermined number.Such as can set one, two, three, four, five
A, ten sensor devices etc..
The present invention is also from the limitation of copper sheet number in sensor device.In this illustration, there is provided five conduction members
Part 5,6,7,8,9, so as to measure five different wear heights.
With reference to Fig. 4, monitoring system 40 includes isolating transformer 50, isolating transformer 50 including the first winding 31 and second around
Group 22.System 40 includes power detection circuit 20 and electronic measuring circuit 30.
Detection circuit includes the reference branch 23 contacted with slide plate 1, that is to say, that as long as existing between slide plate 1 and distribution 2
Contact, the ground connection of circuit 20 is at the current potential of slide plate, then at the current potential of catenary distribution.As an alternative, with reference to branch 23
Clamp (caliper) (not shown) can be soldered to.
Generator 21 makes it possible to inject current into the detection circuit 20.The electric current can be with sinusoidal variations, wherein peak
Value amplitude is such as several milliamperes and frequency is for example several kHz (such as 4kHz).21 and first winding 31 of generator is arranged in series,
So that the first winding 31 is passed through by caused electric current.
Transformer 50 makes it possible to isolate measuring circuit 30 with the ground voltage of detection circuit 20.
In this example, detection circuit 20 includes two detecting elements being installed in parallel, the i.e. abrasion for measurement of skateboarding 2
One group of sensor device 3 and the insulated wire 25 that is bonded on slide plate.
Due to the linear resistance of the conductive core of the armouring distribution 25, wiring resistance R is presented in insulated wire 25wire。
Sensor device 3 is each described similar with referring to figs. 1 to Fig. 3.
This group of sensor 3 and resistor R3It is installed in parallel.In one or more conduction of catenary distribution and sensor 3
In the case of being contacted between element, the end of this or these transport element and the endpoint node 27 of slide plate 2 is contacted in identical
Current potential.If the contact between this or these transport element of catenary distribution and sensor 3 occurs via electric arc, this
A little ends lie substantially in identical current potential with node 27.Current bypasses resistive device R3Lead between these ends and node 26
Cross, so as to run into the number resistor R of the transport element depending on being made electrical contact with catenary distribution 2h。
The electric current injected by generator 21 is then run into equal to resistance RwirePlus being equivalent to resistor R3And RhPeace in parallel
The resistance of the resistance of dress.
When catenary distribution is no longer contacted with any sensor device, the resistance of current path is resisted just by detection circuit
It is simply equal to Rwire+R3The sum of.
Insulated wire 25 is relatively fragile, therefore is easily broken off in the case where slide plate is broken.Then inspection is entered without electric current
Slowdown monitoring circuit, and the signal vanishing of the terminal measurement across winding 31.Contacted between the end of the fracture of distribution 25 and slide plate
In the case of, depending on the length of the distribution corresponding to the end, the resistance run into becomes at a fairly low, therefore can also examine
Survey the fracture of slide plate.
In the case where detecting the fracture of distribution 25, control signal is produced, so as to cause the reduction of pantograph.
Measuring circuit includes the resistor R being installed in series with generator 2132And for receiving and the terminal across winding 31
The proportional signal of signal processor 33.
In the embodiment of Fig. 5, one of terminal of winding 22 (does not show with the current collection clamp below slide plate
Go out) electrical contact.Therefore reference branch 23 between the terminal and clamp is connected to the weak resistive transport element contacted with slide plate.
In addition, it is not that single insulated wire 25 is set, and set and show different mechanical resistances in this embodiment
Two distributions 25,25' of characteristic.For example, distribution 25' has the fracture tolerance lower than armouring distribution 25.Therefore, it would be possible to
, distribution 25' fractures, while distribution 25 is still excellent, so as to allow to detect cracking before slide plate is broken.
In alternative embodiment (not shown), it can set and be installed in parallel and distribution is presented not with other distributions
With the insulated wire (such as three, four or five insulated wires) for being more than two of fracture tolerance.This can be enabled to
Gradually detection slide plate cracking.
Node 28 ensure that insulated wire 25,25' and be also similarly to the one of one group of sensor device described above
The bypass of group sensor device 3.
Fig. 6 shows the theoretical examples for the curve type that can be recorded in carbon slipper life span by processor 33.Horizontal seat
Mark corresponds to the time, and ordinate corresponds to voltage.
At the time of the spike of the curve is crossed corresponding to catenary.
More precisely, in moment t1, catenary distribution do not contact any wear sensor 3.Therefore, detection circuit etc.
Effect resistance is equal to resistance R3With the summation of the resistance being installed in parallel that is equivalent to insulated wire.
In moment t2, catenary wiring contacts wear sensor 3, wearing depth is in wear sensor and catenary distribution
It is relatively low at the level of 2 contacts.Therefore, the equivalent resistance of detection circuit is equal to resistance R3Be equivalent to insulated wire and the mill
Damage the summation of the resistance being installed in parallel of sensor.Therefore, equivalent resistance is less than moment t1Equivalent resistance, and therefore remembered
The voltage of record is higher than moment t1Voltage.
Moment t3At the time of being crossed corresponding to catenary at the horizontal place of sensor 3, at the level, wearing depth is opposite
It is high.The resistance that the wear sensor is resisted is therefore less than the sensor with catenary wiring contacts in moment t2The electricity resisted
Resistance.Therefore, corresponding to moment t3Spike in amplitude ratio correspond to moment t2Spike it is high.Therefore, which makes it possible to
Ensure the uniformity of abrasion, or at least have gained some understanding during slide plate is run to wear profile.
Moment t4Corresponding to the fracture of the distribution 25' of most fragile.Therefore the equivalent resistance of circuit increases, and measured
Voltage drastically declines.
However, catenary distribution during at the time of the horizontal place of sensor 3 is crossed (such as in moment t5), spike is held
It is continuous to be recorded.
Moment t6Corresponding to the fracture of most firm distribution 25.Voltage drops to zero.Send the control for reducing pantograph
Signal processed, so as to prevent from then recording new spike.
Fig. 7 is for showing reference numeral in figures 4 and 5 as the logic for the exemplary method realized in 33 processor
Figure.
During step 101, receiving voltage signal U (t), on this basis, during unshowned step
Estimate the equivalent resistance of detection circuit.
During step 102, wear coefficient value S is derived from the equivalent resistancewWith fragmentation parameters value Sb.At this
In a example, Boolean variable is used for parameter Sb。
In addition can be arranged to：The attrition value S of every kilometer of traveling is calculated during the step 102w-km(not shown)
Function at the time of as corresponding to spike maximum and the function as peak amplitude.
During testing procedure 103, it may be determined that abrasion is not above acceptable threshold value THR, and slide plate does not have
There is fracture.It can also determine that the attrition value of every kilometer of traveling is not shown not less than threshold value THR'().
If appropriate, the signal for authorizing the contact between slide plate and catenary distribution is produced during step 104
SCONTROL.Next, before new magnitude of voltage is received, itself is placed in holding state by processor during step 106.
If finding that abrasion alreadys exceed threshold value THR when testing 103 completion, the abrasion of every kilometer of stroke is too high or sliding
Plate is broken, then signal SCONTROLThe value for example equal to 1 is taken so that pantograph reduces.
Claims (10)
1. the system that one kind is used for the state of monitoring current transmission slide plate (1), electric current transmission slide plate (1) mainly or entirely by
Carbon is made, extendable in the longitudinal direction, it is intended to is installed on electro-motive vehicle so that the longitudinal direction perpendicular to or substantially hang down
Directly in the direction of displacement of the vehicle, and it is intended to rub against catenary distribution (2) under voltage, to carry to the vehicle
For electric current, the catenary distribution is obliquely set relative to the direction of displacement of the vehicle so that the catenary distribution exists
Only represent on the contact area of a part for the length of the slide plate with the slide plate make electrical contact with, and its in the vehicle in institute
State and advanced on direction of displacement during driving movement along the slide plate, the monitoring system includes：
At least one sensor device (3), it is intended to be at least partially installed in the slide plate, only to occupy the length of slide plate
A part for degree, the equipment are designed to when the contact area corresponds to the slide plate part, at least when in the cunning
When the wear height of the slide plate at the level of plate part exceedes threshold value, detect that catenary is crossed, and the sensor
Equipment is also devised to make it possible to measure at least two different wear heights.
2. monitoring system according to claim 1, wherein,
The sensor device includes at least one transport element (5,6,7,8,9), and
After during the electric current produced by the catenary distribution (2) is by the transport element, the stretched wire can be detected
Line is crossed.
3. monitoring system according to claim 2, wherein,
The sensor device includes several transport elements (5,6,7,8,9), and each transport element is in the slide plate internal stretch
Until the slide plate height associated with the transport element.
4. monitoring system according to claim 3, wherein, the transport element is made of copper, in the form of sheets, and the biography
Sensor equipment includes the stacked body for the transport element for being separated from each other by insulator and being embedded in resin.
5. monitoring system according to any one of claim 1 to 4, including：Multiple sensor devices, it is intended to be mounted
On same slide plate so that different from each other corresponding to the part of the slide plate length of the multiple sensor device.
6. monitoring system according to any one of claim 1 to 5, including：
Electronic measuring circuit (30), its generator (21) for including the first transformer winding (31) and can be transmitted AC electric currents are described
Electronic measuring circuit is designed such that at least a portion of the electric current transmitted by the generator passes through the first winding；
Power detection circuit (20), it includes：Second transformer winding；The reference branch of the current potential of detection circuit, branch's quilt
Be designed to contact with the slide plate or the conduction device of the micro resistance with contacting the slide plate contact so that with the cunning
The ground voltage of the detection circuit is equal to or is in close proximity to the voltage of the catenary distribution when plate contacts；And it is described extremely
A few sensor device；
Transformer (50) including first winding and the second winding, for the electronic measuring circuit and the electro-detection is electric
The ground voltage isolation on road；And
For measuring the device (33) of the intensity across the voltage of the terminal of first winding and/or through first winding.
7. monitoring system according to any one of claim 1 to 6, further includes：
At least one electric insulation distribution (25), it is intended to install along the slide plate, and crack or be broken in the slide plate
In the case of be easy to be broken.
8. a kind of pantograph component, including monitoring system according to any one of claim 1 to 7 and electric current transmission are slided
Plate.
9. a kind of method of state for monitoring current transmission slide plate, the electric current transmit slide plate mainly or entirely by carbon system
Into, it is extendable in the longitudinal direction, on electro-motive vehicle so that the longitudinal direction is perpendicular to or substantially perpendicular to described
The direction of displacement of vehicle, and be intended to match somebody with somebody link friction against catenary under voltage, it is described to provide electric current to the vehicle
Catenary distribution is obliquely set relative to the direction of displacement of the vehicle so that the catenary distribution is only representing the cunning
On the contact area of a part for the length of plate with the slide plate make electrical contact with, and its in the vehicle on the direction of displacement
Advanced during driving movement along the slide plate, the monitoring method includes：
At least one signal is received from least one sensor device, at least one sensor device is installed at least in part
In the slide plate, only to occupy a part for the length of the slide plate, the equipment is designed to work as the contact area
During corresponding to the slide plate part, the wear height of the slide plate at least at the level in the slide plate part exceedes threshold value
When, detect that catenary is crossed, and the sensor device is also devised to make it possible to measure at least two different mills
Damage height.
10. according to the method described in claim 9, further include following processing step：, will be pre- during the processing step
Set a distance is associated with two continuous moment that catenary crosses signal, and during the processing step, based on institute
At least two elevation carrections performed come estimate to advance every kilometer the slide plate abrasion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1556138 | 2015-06-30 | ||
| FR1556138A FR3038269B1 (en) | 2015-06-30 | 2015-06-30 | MONITORING THE STATE OF A CURRENT TRANSMISSION STRIP INTENDED TO FRACTURE AGAINST CATENARY WIRE. |
| PCT/FR2016/051660 WO2017001799A1 (en) | 2015-06-30 | 2016-06-30 | Monitoring the state of a current collector strip designed to rub against a trolley wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108025649A true CN108025649A (en) | 2018-05-11 |
Family
ID=54545228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680039122.9A Pending CN108025649A (en) | 2015-06-30 | 2016-06-30 | Monitoring to being designed to the state against the current-collector slide plate of electric car link friction |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3317137A1 (en) |
| CN (1) | CN108025649A (en) |
| FR (1) | FR3038269B1 (en) |
| WO (1) | WO2017001799A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023006323A1 (en) * | 2021-07-30 | 2023-02-02 | Siemens Mobility GmbH | Current collector for an electric tractive unit, and tractive unit equipped with a current collector of this kind |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017217559B3 (en) * | 2017-10-02 | 2019-02-07 | Schunk Carbon Technology Gmbh | Method for inspecting abrasive strips and abrasive strip samples |
| FR3071781A1 (en) * | 2017-10-03 | 2019-04-05 | Faiveley Transport Tours | SYSTEM FOR MONITORING THE WEAR OF A FRICTION BAND OF A PANTOGRAPH |
| FR3077782B1 (en) * | 2018-02-15 | 2020-01-10 | Faiveley Transport Tours | PANTOGRAPH FRICTION TAPE, RAIL VEHICLE AND METHOD OF MONITORING THEREOF |
| FR3071782B1 (en) * | 2017-10-03 | 2022-02-11 | Faiveley Transp Tours | FRICTION STRIP OF A PANTOGRAPH FOR A RAILWAY VEHICLE |
| EP3691929B1 (en) * | 2017-10-03 | 2023-11-01 | Faiveley Transport Tours | System comprising contact strip and detection circuit of a pantograph for a rail vehicle, method for monitoring such a strip, and rail vehicle |
| CN107953783A (en) * | 2017-12-20 | 2018-04-24 | 大同新成新材料股份有限公司 | A kind of pantograph and its detection method easy to detection slide plate loss |
| CN109632803B (en) * | 2019-02-20 | 2023-10-20 | 银河水滴科技（北京）有限公司 | Contact net detection equipment, method and device |
| CN113635770B (en) * | 2021-08-25 | 2023-06-23 | 国网福建省电力有限公司将乐县供电公司 | Self-adaptive constant-voltage contact mechanism based on pantograph |
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- 2016-06-30 CN CN201680039122.9A patent/CN108025649A/en active Pending
- 2016-06-30 WO PCT/FR2016/051660 patent/WO2017001799A1/en active Application Filing
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| JPH03178501A (en) * | 1989-12-05 | 1991-08-02 | Shinpei Iguchi | Pantograph contact-strip fault detector and pantograph fault alarm system |
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| WO2023006323A1 (en) * | 2021-07-30 | 2023-02-02 | Siemens Mobility GmbH | Current collector for an electric tractive unit, and tractive unit equipped with a current collector of this kind |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3317137A1 (en) | 2018-05-09 |
| WO2017001799A1 (en) | 2017-01-05 |
| FR3038269A1 (en) | 2017-01-06 |
| FR3038269B1 (en) | 2017-08-25 |
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Application publication date: 20180511 |