CN108957238A - The device and method of urban rail transit contact network fault location - Google Patents
The device and method of urban rail transit contact network fault location Download PDFInfo
- Publication number
- CN108957238A CN108957238A CN201810868994.7A CN201810868994A CN108957238A CN 108957238 A CN108957238 A CN 108957238A CN 201810868994 A CN201810868994 A CN 201810868994A CN 108957238 A CN108957238 A CN 108957238A
- Authority
- CN
- China
- Prior art keywords
- voltage
- contact net
- protective device
- direct current
- controlling protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The present invention provides a kind of device and methods of urban rail transit contact network fault location, are related to power system monitor field, which includes: direct current transmitter, interlock tripper, DC traction measuring and controlling protective device.Direct current transmitter, interlock tripper, DC traction measuring and controlling protective device.Direct current transmitter detects the electric current and information of voltage of urban rail transit contact network, and the electric current and information of voltage that will test are sent to DC traction measuring and controlling protective device；DC traction measuring and controlling protective device determines the abort situation of urban rail transit contact network according to the electric current and information of voltage that detect.Device and method in through the embodiment of the present invention can be quickly found out the specific location of failure, improve the efficiency of fault location.
Description
Technical field
The present invention relates to power system monitor fields, in particular to a kind of urban rail transit contact network fault location
Device and method.
Background technique
Currently, the power supply system for being similar to the contact net of the rail traffic of subway is no longer single-ended power mode or simple
Both end power supplying mode, but the both end power supplying mode of the bilateral switching of size, power supply system also just complicate accordingly.Power supply system
System is when breaking down, and quickly and accurately finds out failure just and seem unusual difficulty.
Existing power supply mode goes on-site test after breaking down, through manpower.This is by costly manpower and material resources
Capital and time are longer, so reducing the efficiency of transport.
Summary of the invention
The purpose of the present invention is to provide a kind of device and methods of urban rail transit contact network fault location, to improve
The above problem.To achieve the goals above, the technical solution adopted by the present invention is as follows:
In a first aspect, the embodiment of the invention provides a kind of urban rail transit contact network fault locators；Include:
Direct current transmitter is arranged between substation and contact net.The substation is used to power to the contact net；Institute
Direct current transmitter is stated for detecting the first electric current of the contact net, detecting the contact net to the first voltage and use of track
In the second voltage of the detection contact net over the ground.
Interlock tripper is connect with the interlock tripper of adjacent substations.The interlock tripper is used for from institute
The interlock tripper for stating adjacent substations receives the institute for the direct current transmitter detection being arranged in other substations
State the first electric current, the first voltage and the second voltage.Other substations are used to power to the contact net；It is described
Other substations include the adjacent substations.
DC traction measuring and controlling protective device is connected between the direct current transmitter and the interlock tripper.It is described
DC traction measuring and controlling protective device is used to receive first electric current, the first voltage and the institute of the direct current transmitter output
State second voltage；And for receiving the direct current transmitter being arranged in other substations inspection from the interlock tripper
First electric current, the first voltage and the second voltage surveyed.The DC traction measuring and controlling protective device is also used to root
The contact net location of fault is determined according to first electric current, the first voltage and the second voltage that receive.
Optionally, above-mentioned contact net includes upcoming contact net and downlink contact net.It is connect in the substation and the uplink
The direct current transmitter, the direct current are each equipped between net-fault and between the substation and the downlink contact net
Draw measuring and controlling protective device and the interlock tripper.And it is corresponding that the upcoming contact net in same substation is arranged in
It is connected with each other between two shunt tripping devices.
The corresponding direct current transmitter of the downlink contact net be used to acquire the downlink contact net the first electron current,
The downlink contact net is detected to the first sub- voltage of track and for detecting the second son electricity of the downlink contact net over the ground
Pressure, and first electron current, the first sub- voltage and the second sub- voltage are sent to the downlink contact net pair
The DC traction measuring and controlling protective device answered.The corresponding direct current transmitter of the downlink contact net is also used to described
One electron current is sent to the corresponding DC traction measuring and controlling protective device of the upcoming contact net.The downlink contact net is corresponding
The first voltage that receives of the DC traction measuring and controlling protective device include the described first sub- voltage, the second voltage
Including the described second sub- voltage.
The corresponding direct current transmitter of the upcoming contact net be used to acquire the upcoming contact net the second electron current,
The upcoming contact net is detected to the sub- voltage of the third of track and for detecting the 4th son electricity of the upcoming contact net over the ground
Pressure.And second electron current, the sub- voltage of the third and the 4th sub- voltage are sent to the upcoming contact net pair
The DC traction measuring and controlling protective device answered.The corresponding direct current transmitter of the upcoming contact net is also used to described
Two electron currents are sent to the corresponding DC traction measuring and controlling protective device of the downlink contact net.The upcoming contact net is corresponding
The first voltage that receives of the DC traction measuring and controlling protective device include the sub- voltage of the third, the second voltage
Including the 4th sub- voltage.
Wherein, the downlink contact net and the corresponding DC traction measuring and controlling protective device of the upcoming contact net receive
To first electric current include first electron current and second electron current.
Optionally, above-mentioned DC traction measuring and controlling protective device is connect with the interlock tripper by optical fiber, adjacent
It is connected between the interlock tripper by optical fiber.
Optionally, above-mentioned direct current transmitter and the DC traction measuring and controlling protective device pass through cable connection.
Optionally, above-mentioned direct current transmitter is connect with the DC traction measuring and controlling protective device by optical fiber.
Optionally, above-mentioned DC traction measuring and controlling protective device is used to receive the direct current pick-up of our station by ping-pong procedure
First electric current, the first voltage and the institute that the interlock tripper in the adjacent substations of device detection is sent
State second voltage.
Second aspect, the embodiment of the invention provides a kind of method of urban rail transit contact network fault location, applications
Urban rail transit contact network fault locator described in first aspect.The described method includes:
The DC traction measuring and controlling protective device being arranged in each substation obtains setting in our station and other changes
First electric current, the first voltage and the second voltage of direct current transmitter acquisition in power station.
The DC traction measuring and controlling protective device is true according to first electric current, the first voltage and the second voltage
The abort situation of the fixed contact net.
Optionally, above-mentioned DC traction measuring and controlling protective device is according to first electric current, the first voltage and described
Two voltages determine that the step of abort situation of the contact net includes:
Obtain the equivalent resistance and equivalent inductance of the contact net；
Obtain the equivalent resistance and equivalent inductance of track；
Obtain the length of fault section；
The DC traction measuring and controlling protective device according to first electric current, the first voltage, the contact net etc.
Effect resistance and equivalent inductance, the equivalent resistance of the track and equivalent inductance, the length are with determining the failure of the contact net
Distance of the point apart from the DC traction measuring and controlling protective device.
Optionally, the DC traction measuring and controlling protective device is according to first electric current, the first voltage and described
Two voltages determine that the step of abort situation of the contact net includes:
Obtain the equivalent resistance and equivalent inductance of the contact net；
Obtain the length of fault section；
The DC traction measuring and controlling protective device according to the second voltage, the first electric current, the contact net equivalent electricity
Resistance and equivalent inductance, the length determine the position of fault of the contact net apart from the DC traction measuring and controlling protective device away from
From.
Optionally, the position of fault for being calculated by the following formula the contact net is filled apart from the DC traction monitoring and protection
The distance set:
Wherein, X is the distance, and D is the length, calculates X value using the formula, obtains contact net fault point pair
The distance between DC traction measuring and controlling protective device.
The embodiment of the invention provides a kind of urban rail transit contact network fault locator and methods；The device packet
Include: direct current transmitter is arranged between substation and contact net.The substation is used to power to the contact net；It is described straight
Flow transmitter is used to detect the first electric current of the contact net, the detection contact net to the first voltage of track and for examining
Survey the second voltage of the contact net over the ground.Interlock tripper is connect with the interlock tripper of adjacent substations.It is described double
Described in side shunt tripping device is used to be arranged in other substations from the reception of the interlock tripper of the adjacent substations
First electric current, the first voltage and the second voltage of direct current transmitter detection.Other substations are for giving
The contact net power supply；Other substations include the adjacent substations.DC traction measuring and controlling protective device is connected to institute
It states between direct current transmitter and the interlock tripper.The DC traction measuring and controlling protective device becomes for receiving the direct current
First electric current, the first voltage and the second voltage for sending device to export；And it is used for from the interlock tripper
Receive first electric current, the first voltage and described the of the direct current transmitter detection being arranged in other substations
Two voltages.The DC traction measuring and controlling protective device be also used to according to receive first electric current, the first voltage and
The second voltage determines the contact net location of fault.Energy is convenient, accurately determines location of fault.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that by implementing understanding of the embodiment of the present invention.The objectives and other advantages of the invention can be by written theory
Specifically noted structure is achieved and obtained in bright book, claims and attached drawing.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structure chart of urban track traffic fault locator provided in an embodiment of the present invention；
Fig. 2 is the structure chart of another urban track traffic fault locator provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of ping-pong procedure provided in an embodiment of the present invention；
Fig. 4 is schematic equivalent circuit of the contact net provided in an embodiment of the present invention to track；
Fig. 5 is the schematic equivalent circuit of contact net provided in an embodiment of the present invention over the ground；
Fig. 6 is the terminals subgraph of DC traction measuring and controlling protective device provided in an embodiment of the present invention；
Fig. 7 is the schematic diagram of interlock tripper terminal provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram of direct current transmitter terminal provided in an embodiment of the present invention；
Fig. 9 is flow diagram provided in an embodiment of the present invention.
In figure: 10- urban rail transit contact network fault locator；100- direct current transmitter；200- DC traction is surveyed
Control protective device；300- interlock tripper.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Fig. 1-Fig. 2 and Fig. 6-Fig. 8 are please referred to, the embodiment of the invention provides a kind of urban rail transit contact network events
Hinder positioning device 10；Include:
Direct current transmitter 100 is arranged between substation and contact net.The substation is used to supply to the contact net
Electricity；The direct current transmitter 100 is used to detect the first electric current of the contact net, detects the contact net to the first electricity of track
It presses and for detecting the second voltage of the contact net over the ground.
Interlock tripper 300 is connect with the interlock tripper 300 of adjacent substations.The interlock tripper 300
For receiving the direct current pick-up being arranged in other substations from the interlock tripper 300 of the adjacent substations
First electric current, the first voltage and the second voltage that device 100 detects.Other substations are used to connect to described
It touches net and powers；Other substations include the adjacent substations.
DC traction measuring and controlling protective device 200 is connected to the direct current transmitter 100 and the interlock tripper 300
Between.The DC traction measuring and controlling protective device 200 be used to receive first electric current that the direct current transmitter 100 exports,
The first voltage and the second voltage；And it is arranged for being received from the interlock tripper 300 in other substations
In the direct current transmitter 100 detect first electric current, the first voltage and the second voltage.The direct current is led
Draw measuring and controlling protective device 200 and determines institute also according to first electric current, the first voltage and the second voltage received
State contact net location of fault.
Optionally, above-mentioned contact net includes upcoming contact net and downlink contact net.It is connect in the substation and the uplink
The direct current transmitter 100, described straight is each equipped between net-fault and between the substation and the downlink contact net
Stream traction measuring and controlling protective device 200 and the interlock tripper 300.And the upcoming contact in same substation is set
It nets and is connected with each other between corresponding two interlock trippers 300.Downlink contact in same substation is set
It nets and is connected with each other between corresponding two interlock trippers 100.
The corresponding direct current transmitter 100 of the downlink contact net is used to acquire the first son electricity of the downlink contact net
It flows, detect the downlink contact net to the first sub- voltage of track and for detecting the second son of the downlink contact net over the ground
Voltage.And first electron current, the first sub- voltage and the second sub- voltage are sent to the downlink contact net
The corresponding DC traction measuring and controlling protective device 200, the corresponding direct current transmitter 100 of the downlink contact net are also used to
First electron current is sent to the corresponding DC traction measuring and controlling protective device 200 of the upcoming contact net.Under described
The first voltage that the corresponding DC traction measuring and controlling protective device 200 of row contact net receives includes the first son electricity
Pressure, the second voltage includes the described second sub- voltage.
The corresponding direct current transmitter 100 of the upcoming contact net is used to acquire the second son electricity of the upcoming contact net
It flows, detect the upcoming contact net to the sub- voltage of the third of track and for detecting the 4th son of the upcoming contact net over the ground
Voltage.And second electron current, the sub- voltage of the third and the 4th sub- voltage are sent to the upcoming contact net
The corresponding DC traction measuring and controlling protective device 200.The corresponding direct current transmitter 100 of the upcoming contact net is also used to
Second electron current is sent to the corresponding DC traction measuring and controlling protective device 200 of the downlink contact net.On described
The first voltage that the corresponding DC traction measuring and controlling protective device 200 of row contact net receives includes the third electricity
Pressure, the second voltage includes the 4th sub- voltage.
Wherein, the downlink contact net and the corresponding DC traction measuring and controlling protective device 200 of the upcoming contact net
First electric current received includes first electron current and second electron current.
Optionally, the upcoming contact net and the direct current transmitter 100, the direct current in the downlink contact net are led
Draw measuring and controlling protective device 200 and the mutual connection relationship of the interlock tripper 300 is consistent.
Optionally, in embodiments of the present invention, by taking three substations are contact net power supply jointly as an example, concrete analysis is such as
Under:
Optionally, each of described urban rail transit contact network fault locator 10 DC traction monitoring and protection
Device 200 will receive the data of three parts, by taking the DC traction measuring and controlling protective device 200 of the station A upcoming contact net side as an example；Remaining
The form that DC traction measuring and controlling protective device 200 receives data is consistent.DC traction measuring and controlling protective device 200 received
A part of data be A station upstream side direct current transmitter 100 detect first part's data (the first electron current, first voltage and
Second voltage), the received second part data of DC traction measuring and controlling protective device 200 are the interlock trippers of the station A upstream side
300 obtain second part data (other substations, for example, the station B and the station C direct current transmitter 100 detect the first electric current, the
One voltage and second voltage), the received Part III data of DC traction measuring and controlling protective device 200 are the direct currents of the station A downlink side
The Part III data (the second electron current) that transmitter 100 detects.
Further, received first electric current of DC traction measuring and controlling protective device 200 of the upstream side at the station A includes the first son
Electric current and the second electron current.
Further, the second part data are the numbers of the acquisition of interlock tripper 300 of the upstream side of this substation
According to.For example, in embodiments of the present invention, there are three substations, then the interlock tripper 300 of the upstream side of this substation obtains
Data be other two substation respective upstream side DC traction measuring and controlling protective device 200 obtain respective side first
Electric current, first voltage and second voltage.What needs to be explained here is that first electric current refers to the direct current of this side of this substation
The contact net electric current that the direct current transmitter 100 of the electric current for originally flanking net-fault and the our station other side that transmitter 100 monitors monitors, institute
Originally flanking of stating that first voltage refers to that the direct current transmitter 100 of this side of this substation monitors is touched net to the voltage of track, described
Second voltage refers to that the direct current transmitter 100 of this side of this substation monitored originally flanks the voltage over the ground of touching net.
Further, Part III data are the downlink side of the monitoring of direct current transmitter 100 of the downlink side of this substation
First electric current of contact net.
Further, in embodiments of the present invention, the quantity of substation is three, but in the particular embodiment, described
The quantity of substation can limit as the case may be, however it is not limited to only be three.But DC traction measuring and controlling protective device 200
It is the same for obtaining the mode of data.
Optionally, above-mentioned DC traction measuring and controlling protective device 200 is connect with the interlock tripper 300 by optical fiber,
It is connected between the adjacent interlock tripper 300 by optical fiber.
Further, shown in dotted line as in Figure 1 and Figure 2 connection, the DC traction measuring and controlling protective device 200 with it is described
Optical Interface Board can be set between interlock tripper 300, the Optical Interface Board is used for fiber optic communication.Optical Interface Board
Setting make first electric current, first voltage and second voltage by spread fiber decay it is smaller, spread speed is fast.
Optionally, above-mentioned direct current transmitter 100 passes through cable connection with the DC traction measuring and controlling protective device 200.Such as
Shown in solid line connection in Fig. 1.
Further, when direct current transmitter 100 and the DC traction measuring and controlling protective device 200 pass through cable connection,
The cable includes the first cable, the second cable and third cable.First cable and this side of second cable connection
DC traction measuring and controlling protective device 200, the DC traction measuring and controlling protective device 200 of the third cable connection other side.It is described
First cable transmission is first voltage and second voltage, and second cable and the third cable transmission are the first electricity
Stream.It should be noted that first electron current is the electric current obtained relative to the direct current transmitter 100 of this side, relative to another
For side, the electric current that the direct current transmitter 100 of this side obtains is transferred to the DC traction measuring and controlling protective device 200 of the other side
Electric current is the second electron current relative to the DC traction measuring and controlling protective device 200 of the other side.
Optionally, above-mentioned direct current transmitter 100 can also be connected with the DC traction measuring and controlling protective device 200 by optical fiber
It connects (as shown in the dotted line connection in Fig. 2).Optical fiber mentioned here connection is, the ipsilateral direct current transmitter 100 with it is described
DC traction measuring and controlling protective device 200 can be connected by optical fiber；Simultaneously in same substation, the direct current pick-up of upstream side
Device 100 can also be connect with the DC traction measuring and controlling protective device 200 of downlink side by optical fiber.Similarly, downlink side is described straight
Flow transmitter 100 can also be connect with the DC traction measuring and controlling protective device 200 of upstream side by optical fiber.
Explanation is needed further exist for, in the present invention is implemented, DC traction measuring and controlling protective device 200 obtains described
First electric current includes two parts electric current, and a part is the detection of direct current transmitter 100 of this side relative to originally flanking the of net-fault
One electron current, another part are the second electron currents relative to other side contact net that other side direct current transmitter 100 detects.
Optionally, in embodiments of the present invention, above-mentioned DC traction measuring and controlling protective device 200 by ping-pong procedure for being connect
The interlock tripper 300 in the adjacent substations that the direct current transmitter 100 of receipts our station detects and described is sent
First electric current, the first voltage and the second voltage.Synchrodata is obtained in this way, is calculated with improving
As a result accuracy more accurately judges out of order specific location.
Referring to Fig. 3, in an embodiment of the present invention, the mode for obtaining synchrodata is to select direct current transmitter 100
For time reference terminal and it is set as main website.The DC traction measuring and controlling protective device on another contact net being directly connected to therewith
200 are set as substation.Boss station is arranged for sampling time synchronous convenience.Time synchronization utilizes a data frame receipt
Time executes.In order to execute the time synchronization of substation, when time signal is dealt into the sampling of substation and substation relay by main website
Between it is synchronous with substation receiving time；The fault position method that the data detected in this way could be used for rail traffic calculates out of order tool
Body position.
Further, the mode for obtaining synchrodata can be main website and send a time command to substation, that is, its
In a DC traction measuring and controlling protective device 200 when acquiring data, by send one order give remaining DC traction observing and controlling protect
Protection unit 200, remaining DC traction measuring and controlling protective device 200 are based on this order and acquire corresponding data.The corresponding data
It is acquired for each DC traction measuring and controlling protective device 200 in remaining described DC traction measuring and controlling protective device 200 corresponding
First electric current, first voltage and second voltage.
Referring to Fig. 6, for the terminals subgraph of DC traction measuring and controlling protective device 200 in the embodiment of the present invention.It can wrap
Include A terminal (analog quantity access terminal), B terminal (outputing terminal) C terminal (communication terminal) D terminal (power supply terminal) E terminal (is opened
Enter terminal) 2 road Ethernet interfaces, 2 road optical fiber interfaces, 2 road USB interfaces, 1 road B code clock synchronization interface.
Referring to Fig. 7, for the terminals subgraph of interlock tripper 300 in the embodiment of the present invention.It may include: 1 road electricity
Source terminal, 1 ground terminal, 1 tunnel, 458 communication terminal, 2 groups totally 8 tunnels open into, 2 groups totally 8 roads output, 1 tunnel alarm instruction terminal, 2
Size bilateral switching in road indicates terminal.
Referring to Fig. 8, for the terminals subgraph of direct current transmitter 100 in the embodiment of the present invention.It may include that 1 road power supply connects
Mouthful, the communication of 1 tunnel 458, No. 8 relays, 3 tunnel voltage outputs, 5 road current output interfaces.
A kind of working principle of urban track traffic positioning device provided in an embodiment of the present invention is as follows:
The electric current and information of voltage of the direct current transmitter detection urban rail transit contact network, and the electric current that will test
The ipsilateral DC traction measuring and controlling protective device of described substation is sent to information of voltage；The DC traction monitoring and protection
Device also receive the ipsilateral interlock tripper of described substation electric current and information of voltage and this substation it is another
The current information of the direct current transmitter detection of side.Each direct current of upstream side is led in the urban track traffic positioning device
Drawing the received data of measuring and controlling protective device is identical, each direct current of downlink side in the urban track traffic positioning device
It is also identical for drawing the received data of measuring and controlling protective device.Each DC traction of the urban track traffic positioning device
Measuring and controlling protective device carries out the accurate positionin of failure according to fault location algorithm.
The embodiment of the invention provides a kind of urban rail transit contact network fault locators；It include: direct current transmitter,
It is arranged between substation and contact net.The substation is used to power to the contact net；The direct current transmitter is for examining
The first electric current for surveying the contact net detects the contact net to the first voltage of track and for detecting the contact net pair
The second voltage on ground.Interlock tripper is connect with the interlock tripper of adjacent substations.The interlock tripper is used for
The direct current transmitter detection being arranged in other substations is received from the interlock tripper of the adjacent substations
First electric current, the first voltage and the second voltage.Other substations are used to power to the contact net；
Other substations include the adjacent substations.DC traction measuring and controlling protective device, be connected to the direct current transmitter and
Between the interlock tripper.The DC traction measuring and controlling protective device is used to receive the described of the direct current transmitter output
First electric current, the first voltage and the second voltage；And it is arranged for being received from the interlock tripper other
First electric current, the first voltage and the second voltage of direct current transmitter detection in substation.It is described straight
Stream traction measuring and controlling protective device is also used to true according to first electric current, the first voltage and the second voltage that receive
The fixed contact net location of fault.Energy is convenient, accurately determines location of fault.
Referring to Fig. 9, the embodiment of the invention provides a kind of method of urban rail transit contact network fault location, application
Urban rail transit contact network fault locator described in first aspect.The described method includes:
S400: be arranged in the DC traction measuring and controlling protective device in each substation obtain setting our station and its
First electric current, the first voltage and the second voltage of direct current transmitter acquisition in his substation.
S500: the DC traction measuring and controlling protective device is according to first electric current, the first voltage and described second
Voltage handles to obtain the specific location of rail traffic electric network fault by fault location algorithm.
In embodiments of the present invention, above-mentioned DC traction measuring and controlling protective device is according to first electric current, first electricity
Pressure and second voltage the step of determining the abort situation of the contact net include:
Obtain the equivalent resistance and equivalent inductance of the contact net；
Obtain the length of fault section；
The DC traction measuring and controlling protective device according to the second voltage, the first electric current, the contact net equivalent electricity
Resistance and equivalent inductance, the length determine the position of fault of the contact net apart from the DC traction measuring and controlling protective device away from
From.
Optionally, the position of fault for being calculated by the following formula the contact net is filled apart from the DC traction monitoring and protection
The distance set:
Wherein, X is the distance, and D is the length, calculates X value using the formula, obtains contact net fault point pair
The distance between DC traction measuring and controlling protective device.
Further, the process of above-mentioned acquisition equivalent circuit is mode as described below:
Referring to Fig. 4, the contact net that the uplink and downlink contact net between the end section m and the end n of powering is equivalent to two is in parallel
Substitutional connection, length D, both ends are a node and b node, and Rc, Lc are respectively the resistance of contact net substitutional connection, inductance.
Equally, the rail powered between the end section m and the end n is equivalent to a rail substitutional connection, length D, both ends m
End and the end n, Rr, Lr are respectively the resistance of rail substitutional connection, inductance.
The end m power supply system is Ueqm, Reqm and the Leqm being sequentially connected in series, and the end Leqm and the end Ueqm are separately connected contact net etc.
Imitate a node of route and the end m of rail substitutional connection；
The end n power supply system is Ueqn, Reqn and the Leqn being sequentially connected in series, and the end Leqn and the end Ueqn are separately connected contact net etc.
Imitate the b node of route and the end n of rail substitutional connection.
Wherein: Ueqm, Reqm and Leqm are power supply, interior resistance and the interior inductance of the end m power supply system；Ueqn, Reqn and
Leqn is power supply, interior resistance and the interior inductance of the end n power supply system.
Further, it is directed to based on above-mentioned contact net in the embodiment of the present invention to the equivalent circuit diagram of track, one provided
The specific detection method of kind.Between upstream or downstream contact net substitutional connection and track substitutional connection, contact with each other failure,
Contact net substitutional connection fault point is c, rail substitutional connection fault point is d；And the transition resistance between c point and d point is Rf.
X is the ratio of fault point c point (or d) distance a nodal distance and fault section length (enable is 1), then: a node to c
Contact net substitutional connection resistance, the inductance of point are respectively xRc, xLc；Contact net substitutional connection resistance, the electricity of c point distance b node
Sense is respectively (1-x) Rc, (1-x) Lc.Rail substitutional connection resistance, the inductance of a node to c point are respectively x Rr, xLr；C point away from
Rail substitutional connection resistance, inductance from b node are respectively (1-x) Rr, (1-x) Lr.
According to Kirchhoff's second law, 1 circuit in Fig. 4, increase it is collated after algorithm such as formula (1), in following formula:
X is the place of fault point generation with a distance from this side of measuring device；D is fault section length.
In above-mentioned formula (1), i1、i2For the first loop current；i3For second servo loop branch current.
According to Kirchhoff's second law, 2 circuits in Fig. 4, increase it is collated after algorithm such as formula (2), it may be assumed that utilize
Contact net ranging and contact net and rail ranging.In following formula: X be the place that occurs of fault point from measuring device this side away from
From；D is fault section length.
In above-mentioned formula (2), i3 ' is the road electric current of second servo loop.
Referring to Fig. 5, the contact net that the uplink and downlink contact net between the end section m and the end n of powering is equivalent to two is in parallel
Substitutional connection, length D, both ends are a node and b node, and Rc, Lc are respectively the resistance of contact net substitutional connection, inductance.
The end m power supply system is Ueqm, Reqm and the Leqm being sequentially connected in series, and the end Leqm and the end Ueqm are separately connected contact net etc.
Imitate a node and the ground connection of route.
The end n power supply system is Ueqn, Reqn and the Leqn being sequentially connected in series, and the end Leqn and the end Ueqn are separately connected contact net etc.
Imitate b node and the ground connection of route.
Wherein: Ueqm, Reqm and Leqm are power supply, interior resistance and the interior inductance of the end m power supply system.
Ueqn, Reqn and Leqn are power supply, interior resistance and the interior inductance of the end n power supply system.Further, the present invention is implemented
Example provides specific detection method for the contact net equivalent circuit diagram over the ground of above-mentioned offer.
Between upstream or downstream contact net substitutional connection and ground, ground fault, fault point c occurs.
Using contact net and ground ranging, shown in the increased algorithm such as formula (3) of institute.In following formula: X is the ground that fault point occurs
Point is with a distance from this side of measuring device；D is fault section length.
I in above-mentioned 3 formula1、i2、i3、i3', u+-1, u+-2, u+GND1 and u+GND2 be above-mentioned apparatus allocation plan
In (with A station upstream side direct current transmitter 100 and B stand left side upstream side direct current transmitter 100, A stand upstream side direct current transmitter
The electric current of 100 acquisitions is i1For, remaining interval and so on): i1It is the electric current that the station A upstream side direct current transmitter 100 acquires
i1、i2It is the electric current i that the station B left side upstream side direct current transmitter 100 acquires1、i3It is that the station A downlink side direct current transmitter 100 acquires
Electric current, i3' be B station left side downlink side direct current transmitter 100 acquire electric current, u+-1 be A stand erectly flow transmitter 100 acquisition electricity
Pressure, u+-2 be B station left side upstream side direct current transmitter 100 acquire voltage, u+GND1 be A stand erectly flow transmitter 100 acquisition
Voltage, u+GND2 are the voltage u+GND that the station B left side upstream side direct current transmitter 100 acquires.D can be by measuring contact net lines
It grows and obtains.RC, LC, Rr, Lr can be obtained by on-the-spot test.
The embodiment of the invention provides a kind of methods of urban rail transit contact network fault location, are applied to first aspect
The urban rail transit contact network fault locator 10.The described method includes:
Be arranged in the DC traction measuring and controlling protective device 200 in each substation obtain setting our station and other
First electric current, the first voltage and the second voltage that the direct current transmitter 100 in substation acquires.
The DC traction measuring and controlling protective device 200 is according to first electric current, the first voltage and second electricity
Pressure handles to obtain the specific location of rail traffic electric network fault by fault location algorithm.Failure can be quickly and accurately found out
Specific location increases the efficiency of communications and transportation.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of urban rail transit contact network fault locator characterized by comprising
Direct current transmitter is arranged between substation and contact net；The substation is used to power to the contact net；It is described straight
Flow transmitter is used to detect the first electric current of the contact net, the detection contact net to the first voltage of track and for examining
Survey the second voltage of the contact net over the ground；
Interlock tripper is connect with the interlock tripper of adjacent substations；The interlock tripper is used for from the phase
The interlock tripper of adjacent substation receives described the of the direct current transmitter detection being arranged in other substations
One electric current, the first voltage and the second voltage, other substations are used to power to the contact net；It is described other
Substation includes the adjacent substations；
DC traction measuring and controlling protective device is connected between the direct current transmitter and the interlock tripper, the direct current
Traction measuring and controlling protective device is used to receive first electric current of direct current transmitter output, the first voltage and described the
Two voltages；And detected for receiving the direct current transmitter being arranged in other substations from the interlock tripper
First electric current, the first voltage and the second voltage；The DC traction measuring and controlling protective device is also used to basis and connects
First electric current, the first voltage and the second voltage received determines the contact net location of fault.
2. the apparatus according to claim 1, which is characterized in that the contact net includes upcoming contact net and downlink contact
Net is matched between the substation and the upcoming contact net and between the substation and the downlink contact net
It is equipped with the direct current transmitter, the DC traction measuring and controlling protective device and the interlock tripper；And it is arranged in same change
It is connected with each other between the corresponding two shunt tripping devices of the upcoming contact net in power station；
The corresponding direct current transmitter of the downlink contact net is used to acquire the first electron current of the downlink contact net, detection
The downlink contact net to the first sub- voltage of track and for detecting the second sub- voltage of the downlink contact net over the ground, and
First electron current, the first sub- voltage and the second sub- voltage are sent to the corresponding institute of the downlink contact net
State DC traction measuring and controlling protective device, the corresponding direct current transmitter of the downlink contact net is also used to the first son electricity
Stream is sent to the corresponding DC traction measuring and controlling protective device of the upcoming contact net；The downlink contact net is corresponding described
The first voltage that DC traction measuring and controlling protective device receives includes the described first sub- voltage, and the second voltage includes institute
State the second sub- voltage；
The corresponding direct current transmitter of the upcoming contact net is used to acquire the second electron current of the upcoming contact net, detection
The upcoming contact net to the sub- voltage of the third of track and for detecting the 4th sub- voltage of the upcoming contact net over the ground, and
Second electron current, the sub- voltage of the third and the 4th sub- voltage are sent to the corresponding institute of the upcoming contact net
State DC traction measuring and controlling protective device, the corresponding direct current transmitter of the upcoming contact net is also used to the second son electricity
Stream is sent to the corresponding DC traction measuring and controlling protective device of the downlink contact net；The upcoming contact net is corresponding described
The first voltage that DC traction measuring and controlling protective device receives includes the sub- voltage of the third, and the second voltage includes institute
State the 4th sub- voltage；
Wherein, the downlink contact net and the corresponding DC traction measuring and controlling protective device of the upcoming contact net receive
First electric current includes first electron current and second electron current.
3. the apparatus according to claim 1, which is characterized in that the DC traction measuring and controlling protective device and described bilateral
It jumps device to connect by optical fiber, be connected between the adjacent interlock tripper by optical fiber.
4. device according to claim 3, which is characterized in that the direct current transmitter and the DC traction monitoring and protection
Device passes through cable connection.
5. device according to claim 3, which is characterized in that the direct current transmitter and the DC traction monitoring and protection
Device is connected by optical fiber.
6. the apparatus according to claim 1, which is characterized in that the DC traction measuring and controlling protective device is for passing through table tennis
The institute that the interlock tripper in the adjacent substations of the method to receive the direct current transmitter detection of our station is sent
State the first electric current, the first voltage and the second voltage.
7. a kind of method of urban rail transit contact network fault location is applied in device as described in claim 1, special
Sign is, which comprises
The DC traction measuring and controlling protective device being arranged in each substation, which obtains, to be arranged in our station and other substations
In the direct current transmitter acquisition first electric current, the first voltage and the second voltage；
The DC traction measuring and controlling protective device determines institute according to first electric current, the first voltage and the second voltage
State the abort situation of contact net.
8. the method for urban rail transit contact network fault location according to claim 7, which is characterized in that the direct current
Traction measuring and controlling protective device determines the event of the contact net according to first electric current, the first voltage and the second voltage
Hinder position the step of include:
Obtain the equivalent resistance and equivalent inductance of the contact net；
Obtain the equivalent resistance and equivalent inductance of track；
Obtain the length of fault section；
The DC traction measuring and controlling protective device according to first electric current, the first voltage, the contact net equivalent electricity
Resistance and equivalent inductance, the equivalent resistance of the track and equivalent inductance, the length determine the position of fault of the contact net away from
With a distance from the DC traction measuring and controlling protective device.
9. the method for urban rail transit contact network fault location according to claim 7, which is characterized in that the direct current
Traction measuring and controlling protective device determines the event of the contact net according to first electric current, the first voltage and the second voltage
Hinder position the step of include:
Obtain the equivalent resistance and equivalent inductance of the contact net；
Obtain the length of fault section；
The DC traction measuring and controlling protective device according to the second voltage, the first electric current, the contact net equivalent resistance and
Equivalent inductance, the length determine distance of the position of fault of the contact net apart from the DC traction measuring and controlling protective device.
10. the method for urban rail transit contact network fault location according to claim 9, which is characterized in that by with
Lower formula calculates distance of the position of fault of the contact net apart from the DC traction measuring and controlling protective device:
It will acquire data and bring formula into:
Wherein, X is the distance, and D is the length, calculates X value using the formula, obtains contact net fault point to direct current
Draw the distance between measuring and controlling protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868994.7A CN108957238B (en) | 2018-08-01 | 2018-08-01 | Device and method for positioning faults of urban rail transit contact network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868994.7A CN108957238B (en) | 2018-08-01 | 2018-08-01 | Device and method for positioning faults of urban rail transit contact network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108957238A true CN108957238A (en) | 2018-12-07 |
| CN108957238B CN108957238B (en) | 2020-11-03 |
Family
ID=64466858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810868994.7A Active CN108957238B (en) | 2018-08-01 | 2018-08-01 | Device and method for positioning faults of urban rail transit contact network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108957238B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244182A (en) * | 2019-06-28 | 2019-09-17 | 国电南瑞南京控制系统有限公司 | A kind of Fault Locating Method and system suitable for electric railway multipoint line |
| CN110501560A (en) * | 2019-08-30 | 2019-11-26 | 广州市扬新技术研究有限责任公司 | Orbit traffic direct current transmitter digitalizer based on fiber optic communication |
| CN110579686A (en) * | 2019-09-12 | 2019-12-17 | 池代臻 | Fault testing method and fault testing circuit of rail contact network |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1590968A1 (en) * | 1988-10-03 | 1990-09-07 | Rizhskij Polt Inst | Method of bilateral determination of distance to the place of short circuit |
| JPH0694778A (en) * | 1992-09-11 | 1994-04-08 | Furukawa Electric Co Ltd:The | Fault section locating method |
| CN102707190A (en) * | 2012-01-10 | 2012-10-03 | 成都唐源电气有限责任公司 | Direct-current-side short-circuit fault distance measuring device and method of metro tractive power supply system |
| CN104934949A (en) * | 2015-05-15 | 2015-09-23 | 广州白云电器设备股份有限公司 | Optical fibre communication-based two way inter-tripping protection system for DC traction power supply system |
| CN104924922A (en) * | 2015-05-15 | 2015-09-23 | 广州白云电器设备股份有限公司 | Bilateral combination jump protection system of direct-current traction power supply system based on digital communications |
| CN106100130A (en) * | 2016-08-04 | 2016-11-09 | 南京南瑞继保电气有限公司 | A kind of guard method of urban track traffic DC power-supply system |
| CN107015102A (en) * | 2017-05-12 | 2017-08-04 | 武汉中直电气股份有限公司 | The distance-finding method and system of a kind of direct current rail transportation supply line short trouble |
| CN107147090A (en) * | 2017-06-07 | 2017-09-08 | 广州白云电器设备股份有限公司 | Interlock tripper and two-sided anti-interference protection system based on fiber optic communication |
| CN107688128A (en) * | 2017-08-22 | 2018-02-13 | 广州得元电力科技有限公司 | Method of testing, device, computer-readable recording medium and the computer equipment of subway direct current protecting device |
-
2018
- 2018-08-01 CN CN201810868994.7A patent/CN108957238B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1590968A1 (en) * | 1988-10-03 | 1990-09-07 | Rizhskij Polt Inst | Method of bilateral determination of distance to the place of short circuit |
| JPH0694778A (en) * | 1992-09-11 | 1994-04-08 | Furukawa Electric Co Ltd:The | Fault section locating method |
| CN102707190A (en) * | 2012-01-10 | 2012-10-03 | 成都唐源电气有限责任公司 | Direct-current-side short-circuit fault distance measuring device and method of metro tractive power supply system |
| CN104934949A (en) * | 2015-05-15 | 2015-09-23 | 广州白云电器设备股份有限公司 | Optical fibre communication-based two way inter-tripping protection system for DC traction power supply system |
| CN104924922A (en) * | 2015-05-15 | 2015-09-23 | 广州白云电器设备股份有限公司 | Bilateral combination jump protection system of direct-current traction power supply system based on digital communications |
| CN106100130A (en) * | 2016-08-04 | 2016-11-09 | 南京南瑞继保电气有限公司 | A kind of guard method of urban track traffic DC power-supply system |
| CN107015102A (en) * | 2017-05-12 | 2017-08-04 | 武汉中直电气股份有限公司 | The distance-finding method and system of a kind of direct current rail transportation supply line short trouble |
| CN107147090A (en) * | 2017-06-07 | 2017-09-08 | 广州白云电器设备股份有限公司 | Interlock tripper and two-sided anti-interference protection system based on fiber optic communication |
| CN107688128A (en) * | 2017-08-22 | 2018-02-13 | 广州得元电力科技有限公司 | Method of testing, device, computer-readable recording medium and the computer equipment of subway direct current protecting device |
Non-Patent Citations (2)
| Title |
|---|
| 宋晓明: "城市轨道牵引供电系统故障定位研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 胡笑翔: "地铁直流牵引供电系统双边联跳保护", 《城市建设理论研究》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244182A (en) * | 2019-06-28 | 2019-09-17 | 国电南瑞南京控制系统有限公司 | A kind of Fault Locating Method and system suitable for electric railway multipoint line |
| CN110244182B (en) * | 2019-06-28 | 2021-05-18 | 国电南瑞南京控制系统有限公司 | Fault positioning method and system suitable for electrified railway multi-branch line |
| CN110501560A (en) * | 2019-08-30 | 2019-11-26 | 广州市扬新技术研究有限责任公司 | Orbit traffic direct current transmitter digitalizer based on fiber optic communication |
| CN110579686A (en) * | 2019-09-12 | 2019-12-17 | 池代臻 | Fault testing method and fault testing circuit of rail contact network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108957238B (en) | 2020-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201352239Y (en) | Distribution room user identifier | |
| CN108957238A (en) | The device and method of urban rail transit contact network fault location | |
| CN109901024A (en) | A kind of Fault Locating Method of aerial-cable hybrid line | |
| CN102495336B (en) | Distributed single-phase earth fault ranging system and ranging method thereof | |
| RU2516299C2 (en) | Line damage detector | |
| JP2023098887A (en) | System and method for monitoring power line conductor using related optical fiber cable | |
| CN109613425A (en) | Converter valve test macro and test method | |
| CN101603995A (en) | Method and station user identification apparatus that cable detecting device and realization thereof detect | |
| CN103760467A (en) | Method for inspecting single-phase earth fault point of power distribution network | |
| CN101183133A (en) | Phase amount and zero sequence amount combined realization powerline both-end distance measuring method | |
| CN102707190A (en) | Direct-current-side short-circuit fault distance measuring device and method of metro tractive power supply system | |
| CN110082636A (en) | A kind of power cable fault localization method and system | |
| CN109849975A (en) | A kind of passive speed measuring device of magnetic-levitation train and magnetic-levitation train velocity-measuring system | |
| CN104535895A (en) | Cable-and-overhead-line hybrid line fault section method based on synchronous sampling technology | |
| CN204903655U (en) | Tower grounding resistance measurement device of disconnect ground downlead exempts from | |
| CN102735988B (en) | One-phase earthing failure in electric distribution network localization method | |
| CN104075836A (en) | Tension real-time measuring device and tension real-time measuring method | |
| CN103278744A (en) | Same-tower double-circuit electric transmission line pilot protection method based on T-type line equivalent and post-test simulation thought | |
| CN105116287A (en) | High-voltage cable line fault on-line positioning system and positioning method thereof | |
| CN102749524A (en) | Method for measuring ground resistance with clamp-on ground resistance tester | |
| CN201126458Y (en) | Power line detection apparatus | |
| CN108390719A (en) | A kind of optical cable is automatically to fine test system | |
| CN108387814A (en) | The urban rail transit contact network fault locator and method of the bilateral switching power supply of size | |
| CN202649374U (en) | Inputting or detecting device based on capacitive sensing non-contact signals | |
| CN100381826C (en) | Method for measuring power cable equipment live or not |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Cansen Inventor after: Xie Weijia Inventor after: Chen Jiahui Inventor after: Xue Feipin Inventor after: Chang Baobo Inventor after: Wang Weibin Inventor after: Zeng Binhua Inventor after: Yang Zhiwei Inventor after: Zheng Changquan Inventor after: Ye Zhibing Inventor after: Cao Jinbin Inventor after: Hu Minhua Inventor before: Chen Cansen Inventor before: Chang Baobo Inventor before: Wang Weibin Inventor before: Zeng Binhua Inventor before: Yang Zhiwei Inventor before: Zheng Changquan Inventor before: Ye Zhibing |