CN107147090B - Bilateral united-hop device and bilateral united-hop protection system based on optical fiber communication - Google Patents
Bilateral united-hop device and bilateral united-hop protection system based on optical fiber communication Download PDFInfo
- Publication number
- CN107147090B CN107147090B CN201710423548.0A CN201710423548A CN107147090B CN 107147090 B CN107147090 B CN 107147090B CN 201710423548 A CN201710423548 A CN 201710423548A CN 107147090 B CN107147090 B CN 107147090B
- Authority
- CN
- China
- Prior art keywords
- digital quantity
- double
- feeder
- group
- traction substation
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/04—Arrangements for cutting in and out of individual track sections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a double-side-coupled-hop device and a double-side-coupled-hop protection system based on optical fiber communication, wherein the double-side-coupled-hop device is provided with a first switching input end, a second switching input end, a first group of digital quantity input ends, a first group of digital quantity output ends, a first group of optical fiber interfaces, a second group of digital quantity input ends, a second group of digital quantity output ends and a second group of optical fiber interfaces; the bilateral combined-tripping protection system is provided with the bilateral combined-tripping device corresponding to each traction substation. According to the invention, the optical fiber communication loop of the fault detection result between the second feeder line and the first feeder line of two adjacent traction substations is established, so that the size of the traction substation is subjected to bilateral joint tripping, no matter whether the traction substation in a contact network is in a normal operation state or a cross-region operation state, the fault information of the two feeder lines in any contact network section can be reliably exchanged, and the reliability of bilateral joint tripping protection of a direct-current traction power supply system is improved.
Description
Technical Field
The invention relates to a bilateral united-hop device and a bilateral united-hop protection system based on optical fiber communication.
Background
When the urban rail transit direct-current traction power supply system operates normally, one direct-current power supply of each of two adjacent substations is generally adopted to supply power to the same interval. In this power supply mode, if a fault occurs in the section, the system needs to disconnect the dc feeder circuit breakers corresponding to two adjacent substations through the double-side linkage tripping protection, so that the fault in the section can be thoroughly isolated. When the direct current traction power supply system carries out cross-zone bilateral power supply, the correct switching of the corresponding relation of the direct current feeder of the bilateral jump protection tripping operation is realized through an auxiliary contact of the cross-zone isolating switch.
At present, a direct current switch cabinet for a direct current traction power supply system of urban rail transit adopts a multi-core control cable to transmit an electric pulse signal to realize the direct current switch combined tripping function between two traction stations. The multi-core cable transmits electric signals such as joint hopping, protection and blocking, and the like, and although the scheme is mature, the following problems also exist. 1, node signals are transmitted by using a secondary cable, and long-distance communication cannot be realized; 2, the long-distance laying of the control cable is easy to be interfered; and 3, whether the control cable works normally or not lacks a monitoring means.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a double-side united-hop device and a double-side united-hop protection system based on optical fiber communication are provided.
The technical scheme adopted by the invention is as follows:
the utility model provides a bilateral antithetical couplet hop device based on optical fiber communication which characterized in that: the double-side joint tripping device is provided with a first switching input end, a second switching input end, a first group of digital quantity input ends, a first group of digital quantity output ends, a first group of optical fiber interfaces, a second group of digital quantity input ends, a second group of digital quantity output ends and a second group of optical fiber interfaces, wherein the first group of digital quantity input ends are provided with N first digital quantity input ends, the first group of digital quantity output ends are provided with N first digital quantity output ends, the first group of optical fiber interfaces comprise a first transmitting end and a first receiving end, the second group of optical fiber interfaces comprise a second transmitting end and a second receiving end, the second group of digital quantity input ends are provided with N second digital quantity input ends, the second group of digital quantity output ends are provided with N second digital quantity output ends, and N is a positive integer; the bilateral tandem hop device has the following communication characteristics: when the first switching input end and the second switching input end are powered off, the fault detection result electrical signals input by the first digital quantity input ends are respectively converted into optical signals and then sent out through the first sending end, each piece of fault detection result information contained in the optical signals input by the first receiving end is converted into a fault detection result electrical signal and then output through the first digital quantity output end, the fault detection result electrical signals input by the second digital quantity input ends are respectively converted into optical signals and then sent out through the second sending end, and each piece of fault detection result information contained in the optical signals input by the second receiving end is converted into a fault detection result electrical signal and then output through the second digital quantity output end; when the first switching input end is powered on, the first sending end is connected with the second receiving end, the first receiving end is connected with the second sending end, and the first group of digital quantity input ends, the first group of digital quantity output ends, the second group of digital quantity input ends and the second group of digital quantity output ends are all invalid.
As a preferred embodiment of the present invention: the double-side linked jump device is provided with a fault alarm normally-closed node output end and a fault detection module; the fault detection module can control the output end of the fault alarm normally-closed node to supply power to the outside when detecting that any input end of the double-side jump device has a fault or any output end has a fault or a working power supply is lost or any optical fiber interface is disconnected.
As a preferred embodiment of the present invention: the bilateral united-hop device is realized by FPGA modeling.
A bilateral united-tripping protection system based on optical fiber communication is applied to a direct current traction power supply system, the direct current traction power supply system comprises a contact network and at least three traction substations, each traction substation is arranged along the extension direction of the contact network, and the contact network is divided into contact network sections with corresponding number according to the arrangement direction of each traction substation; each traction substation is provided with a first feeder line and a second feeder line, each first feeder line and each second feeder line are connected in series with a feeder line breaker and a feeder line isolating switch, any one of the traction substations can serve as a middle position traction substation, two traction substations adjacent to the middle position traction substation are respectively called a front position traction substation and a rear position traction substation, a contact network interval between the middle position traction substation and the front position traction substation is defined as a first contact network interval, a contact network interval between the middle position traction substation and the rear position traction substation is defined as a second contact network interval, the first contact network interval and the second contact network interval are connected through a cross-area isolating switch, and the first feeder line of the middle position traction substation and the second feeder line of the front position traction substation are connected in series The second feeder line of the middle position traction substation and the first feeder line of the rear position traction substation supply power to the first contact network section together; the over-zone isolating switch is provided with an auxiliary contact point which is synchronous with the on-off position state of the over-zone isolating switch;
the method is characterized in that:
the double-side linked-tripping protection system is provided with the double-side linked-tripping device corresponding to each traction substation, and is provided with a first frame leakage protection device for detecting the fault condition of the first feeder line and a second frame leakage protection device for detecting the fault condition of the second feeder line corresponding to each traction substation;
for any one of the two-side ganged-hop devices, the first frame leakage protection device and the second frame leakage protection device of the intermediate position traction substation: a first switching input end and a second switching input end of the bilateral gang tripping device are connected with a direct-current power supply through an auxiliary contact of the middle traction substation, so that the first switching input end and the second switching input end are both powered off when the auxiliary contact is in a separating state, and the first switching input end is powered on when the auxiliary contact is in an on state; each fault detection result detected by the first frame leakage protection device is output to one first digital quantity input end of the double-side joint tripping device, each fault detection result detected by the second frame leakage protection device is output to one second digital quantity input end of the double-side joint tripping device, a first transmitting end and a first receiving end of the double-side joint tripping device are respectively connected with a second receiving end and a second transmitting end of the double-side joint tripping device of the front position traction substation, a second transmitting end and a second receiving end of the double-side joint tripping device are respectively connected with a first receiving end and a first transmitting end of the double-side joint tripping device of the rear position traction substation, each first digital quantity output end of the double-side joint tripping device is connected with a feeder circuit breaker switching-closing control end of a first feeder line of the middle position traction substation through a first joint tripping action node, and the feeder circuit breaker of the first feeder line is enabled to be switched off when an electric signal indicating that a fault detection result is a fault is output at any one first digital output end of the double-side linked jump device, and each second digital output end of the double-side linked jump device is connected with a feeder circuit breaker switching-on and switching-off control end of a second feeder line of the intermediate traction substation through a second linked jump action node, so that the feeder circuit breaker of the second feeder line is enabled to be switched off when an electric signal indicating that a fault detection result is a fault is output at any one second digital output end of the double-side linked jump device.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the bilateral united-tripping protection system is provided with a bilateral united-tripping device corresponding to each traction substation, and an optical fiber communication loop of a fault detection result between a second feeder line and a first feeder line of two adjacent traction substations is established through the bilateral united-tripping devices so as to realize the bilateral united-tripping of the traction substations, so that no matter the traction substations in a contact network are in a normal operation state or a cross-region operation state, the bilateral united-tripping protection system can ensure reliable exchange of fault information of the two feeder lines in any contact network section, and improves the reliability of bilateral united-tripping protection of a direct-current traction power supply system;
secondly, the invention transmits the joint jump information through two optical fiber communication loops of the bilateral joint jump device, and eliminates the action time of the output contact because other output contacts are not needed to act to transmit the information, thereby shortening the integral action time of bilateral joint jump protection and improving the real-time property;
thirdly, the invention realizes the soft switching of the communication loop when the normal operation state and the cross-area operation state are changed by the double-side linked jump device, and compared with the hard-wired switching communication loop, the invention greatly improves the anti-interference performance and the reliability, and can reduce the unnecessary wiring;
fourthly, the invention has simple wiring and low cost;
fifthly, the invention realizes the double-side jump device through FPGA modeling, and can further improve the anti-interference performance and reliability of the communication loop.
Drawings
The invention is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a schematic block circuit diagram of a dual edge ganghop arrangement of the present invention;
FIG. 2 is a schematic block circuit diagram of a dual edge coupled trip protection system of the present invention;
in the figure, V1 to V6 each represent a dc power supply; CR denotes the return circuit.
Detailed Description
As shown in fig. 1 and fig. 2, the invention discloses a double-side concatenated hop device based on optical fiber communication, and the inventive concept thereof is as follows: the double-side gang jumping device GD is provided with a first switching input end SWITCH1, a second switching input end SWITCH2, a first group of digital quantity input ends, a first group of digital quantity output ends, a first group of optical fiber interfaces OPTA, a second group of digital quantity input ends, a second group of digital quantity output ends and a second group of optical fiber interfaces OPTB, wherein the first group of digital quantity input ends are provided with N first digital quantity input ends A _ IN, the first group of digital quantity output ends are provided with N first digital quantity output ends A _ OUT, the first group of optical fiber interfaces OPTA comprises a first transmitting end TXA and a first receiving end RXA, the second group of optical fiber interfaces OPTB comprises a second transmitting end TXB and a second receiving end RXB, the second group of digital quantity input ends are provided with N second digital quantity input ends B _ IN, the second group of digital quantity output ends are provided with N second digital quantity output ends B _ OUT, wherein N is a positive integer; the double-edge joint hop device has the following communication characteristics: when the first switching input terminal SWITCH1 and the second switching input terminal SWITCH2 are both powered off, the fault detection result electrical signals input by each first digital quantity input terminal a _ IN are respectively converted into optical signals and then are sent OUT by a first sending terminal TXA, each piece of fault detection result information contained IN the optical signals input by the first receiving terminal RXA is converted into a fault detection result electrical signal and then is output by a first digital quantity output terminal a _ OUT, the fault detection result electrical signals input by each second digital quantity input terminal B _ IN are respectively converted into optical signals and then are sent OUT by a second sending terminal TXB, each piece of fault detection result information contained IN the optical signals input by the second receiving terminal RXB is converted into a fault detection result electrical signal and then is output by a second digital quantity output terminal B _ OUT; when the first switching input terminal SWITCH1 is powered on, the first transmitting terminal TXA is connected with the second receiving terminal RXB, the first receiving terminal RXA is connected with the second transmitting terminal TXB, and the first group of digital quantity input terminals, the first group of digital quantity output terminals, the second group of digital quantity input terminals and the second group of digital quantity output terminals all fail.
On the basis of the above inventive concept, the present invention adopts the following preferred structure:
as a preferred embodiment of the present invention: the double-side linked jump device GD is provided with a fault ALARM normally-closed node output end ALARM and a fault detection module; the fault detection module can control the output end ALARM of the fault ALARM normally-closed node to supply power to the outside when detecting that any input end of the double-side gang-tripping device has a fault or any output end has a fault or a working power supply is lost or any optical fiber interface is disconnected. Therefore, the fault indicator lamp driven by the ALARM output end of the fault ALARM normally-closed node is arranged, so that the fault state of the double-side jump device can be prompted through the fault indicator lamp.
As a preferred embodiment of the present invention: and the two-side jump device GD is realized by FPGA modeling. For example: the double-side jump device shown in fig. 1 is provided with: four first digital quantity input terminals a _ IN1, a _ IN2, a _ IN3, a _ IN4, four first digital quantity output terminals a _ OUT1, a _ OUT2, a _ OUT3, a _ OUT4, four second digital quantity input terminals B _ IN1, B _ IN2, B _ IN3, B _ IN4, four second digital quantity output terminals B _ OUT1, B _ OUT2, B _ OUT3, B _ OUT 4; the two functional modules are respectively used for converting fault detection result electric signals input by the corresponding digital input end into optical signals, the two functional modules are respectively used for converting each piece of fault detection result information contained in the optical signals input by the corresponding receiving end into a fault detection result electric signal and outputting the fault detection result electric signal to the corresponding digital output end, and the SWITCH _ DETECT and the SWITCH are used for detecting the power-on and power-off states of the first switching input end SWITCH1 and the second switching input end SWITCH2 and controlling the communication mode of the double-side coupled skip device.
The invention also discloses a bilateral united-trip protection system based on optical fiber communication, which is applied to a direct-current traction power supply system, wherein the direct-current traction power supply system comprises a contact network CL and at least three traction substations, each traction substation is arranged along the extension direction of the contact network CL, and the contact network CL is divided into contact network sections with corresponding number according to the arrangement direction of each traction substation; each traction substation is provided with a first feeder FC1 and a second feeder FC2, each first feeder FC1 and each second feeder FC2 are connected in series with a feeder breaker QF and a feeder disconnector QS, any one of the traction substations can be used as a middle position traction substation B, two traction substations adjacent to the middle position traction substation B are respectively called a front position traction substation A and a rear position traction substation C, a contact network interval between the middle position traction substation B and the front position traction substation A is defined as a first contact network interval CL-1, a contact network interval between the middle position traction substation B and the rear position traction substation C is defined as a second contact network interval CL-2, and the first contact network interval CL-1 is connected with the second contact network interval CL-2 through a cross-over disconnector YQS, the first feeder FC1 of the middle position traction substation B and the second feeder FC2 of the front position traction substation A supply power to a first contact network section CL-1, and the second feeder FC2 of the middle position traction substation B and the first feeder FC1 of the rear position traction substation C supply power to the first contact network section CL-1 together; the disconnecting switch YQS is provided with an auxiliary contact RT1 synchronized with the opening/closing state thereof.
The double-side-linked-hop protection system is provided with the double-side-linked-hop device GD corresponding to each traction substation, and is provided with a first frame leakage protection device K1 used for detecting the fault condition of the first feeder FC1 and a second frame leakage protection device K2 used for detecting the fault condition of the second feeder FC2 corresponding to each traction substation.
For any one of the two-side gang-tripping devices GD, the first frame leakage protection device K1, and the second frame leakage protection device K2 of the intermediate traction substation B: a first switching input end SWITCH1 and a second switching input end SWITCH2 of the double-side gang jumping device GD are connected with a direct-current power supply through an auxiliary contact RT1 of a middle traction substation B, so that the first switching input end SWITCH1 and the second switching input end SWITCH2 are powered off when the auxiliary contact RT1 is in a separating state, and the first switching input end SWITCH1 is powered on when the auxiliary contact RT1 is in an on state; each fault detection result detected by the first frame leakage protection device K1 is output to a first digital quantity input end A _ IN of the double-side linked jump device GD, each fault detection result detected by the second frame leakage protection device K2 is output to a second digital quantity input end B _ IN of the double-side linked jump device GD, a first sending end TXA and a first receiving end RXA of the double-side linked jump device GD are respectively connected with a second receiving end RXB and a second sending end TXB of the double-side linked jump device GD of the front position traction substation A, a second sending end TXB and a second receiving end RXB of the double-side linked jump device GD are respectively connected with a first receiving end RXA and a first sending end TXA of the double-side linked jump device GD of the rear position traction substation C, each first digital quantity output end A _ OUT of the double-side linked jump device GD is respectively connected with a feeder line breaker on-off and on-off switch control end of a first FC1 of the middle position traction substation B through a first linked jump action node J1, and the feeder circuit breaker QF of the first feeder FC1 is enabled to output an electric signal with a fault detection result at any one first digital output end A _ OUT of the double-side-jump device GD so as to be opened when the fault detection result is the electric signal with the fault, and each second digital output end B _ OUT of the double-side-jump device GD is connected with the feeder circuit breaker QF opening and closing control end of the second feeder FC2 of the middle traction substation B through a second joint jump action node J2 so that the feeder circuit breaker QF of the second feeder FC2 is enabled to output an electric signal with a fault detection result at any one second digital output end B _ OUT of the double-side-jump device GD so as to be opened when the fault detection result is the electric signal with the fault.
The working principle of the bilateral gang-jump protection system of the present invention is described below with respect to any one of a middle position traction substation B (hereinafter referred to as a station B), a front position traction substation a (hereinafter referred to as a station a), and a rear position traction substation C (hereinafter referred to as a station C):
when the station A, B, C normally operates, the B-station disconnecting switch YQS and the auxiliary contact RT1 thereof are in a shunting state, the a-station second feeder FC2 and the B-station first feeder FC1 supply power to the first contact network section CL-1 in a bilateral mode, and the B-station second feeder FC2 and the C-station first feeder FC1 supply power to the second contact network section CL-2 in a bilateral mode. At this time, the first switching input SWITCH1 and the second switching input SWITCH2 are both de-energized due to the separation of the auxiliary contact RT1, the states of the first switching input SWITCH1 and the second switching input SWITCH2 are both 0, so that the first group of optical fiber interfaces OPTB of the B station and the second group of optical fiber interfaces OPTB of the a station are in real-time communication at this time, the second group of optical fiber interfaces OPTB of the B station and the first group of optical fiber interfaces OPTA of the C station are in real-time communication, so that at this time, the electric signal of the first digital input end a _ IN of the station B is output to the second digital output end B _ OUT of the station a, the electric signal of the second digital input end B _ IN of the station a is output to the first digital output end a _ OUT of the station B, the electric signal of the second digital input end B _ IN of the station B is output to the first digital output end a _ OUT of the station C, and the electric signal of the first digital input end a _ IN of the station C is output to the second digital output end B _ OUT of the station B. So that: the fault signal of the second feeder FC2 of the station A can be transmitted to the station B through optical fibers and is opened to the first feeder FC1 of the station B, the fault signal of the first feeder FC1 of the station B can be transmitted to the station A through optical fibers and is opened to the second feeder FC2 of the station A, the fault signal of the second feeder FC2 of the station B can be transmitted to the station C through optical fibers and is opened to the first feeder FC1 of the station C, and the fault signal of the first feeder FC1 of the station C can be transmitted to the station B through optical fibers and is opened to the second feeder FC2 of the station B, so that the double-side-link jump protection effect is achieved.
Therefore, under the normal operation state of the A, B, C station, the bilateral joint jump protection of the first contact network interval CL-1 and the second contact network interval CL-2 can be reliably realized, for example: when a certain position of a first contact network section CL-1 close to the station A has a fault and a feeder FC2 feeder breaker QF is disconnected, only a second frame leakage protection device K2 of the station A receives a fault signal, and a first frame leakage protection device K1 of the station B does not receive the fault signal, a double-side jump device of the station A transmits the fault signal to a first receiving end RXA of a first group of optical fiber interfaces OPTA of the double-side jump device of the station B through a second transmitting end TXB of a second group of optical fiber interfaces OPTB, and then the fault signal is sent to the feeder breaker QF of the first feeder FC1 through a first digital quantity output end A _ OUT, so that the relay QF acts and is disconnected.
When the station A, B, C is in a handover operation, the first feeder FC1 and the second feeder FC2 of the station B are out of operation, the handover isolating switch YQS and the auxiliary contact RT1 of the station B are in an on-position state, and the second feeder FC2 of the station A and the first feeder FC1 of the station C supply power to a combined section formed by connecting the contact net section CL-1 and the contact net section CL-2 in a large bilateral mode. At this time, the first switching input terminal SWITCH1 and the second switching input terminal SWITCH2 of the double-side interconnection apparatus of the B station get powered due to the closing of the auxiliary contact RT1, at this time, the states of the first switching input terminal SWITCH1 and the second switching input terminal SWITCH2 are both 1, so that the first group of optical fiber interfaces OPTA and the second group of optical fiber interfaces OPTB of the double-side interconnection apparatus of the B station form internal communication, that is, the second sending terminal TXB and the second receiving terminal RXB of the second group of optical fiber interfaces OPTB of the double-side interconnection apparatus of the a station are respectively connected with the first rxreceiving terminal a and the first sending terminal TXA of the first group of optical fiber interfaces OPTA of the double-side interconnection apparatus of the C station, so that at this time, an electrical signal at the second digital quantity input terminal B _ IN of the a station is output to the first digital quantity output terminal a _ OUT of the C station, and an electrical signal at the first digital quantity input terminal a _ IN of the C station is output to the second digital quantity output terminal B _ OUT of the a. So that: a fault signal from the second feeder FC2 of the a station can be transmitted directly to the C station via optical fibres and launched onto the first feeder FC1 of the C station, while a fault signal from the first feeder FC1 of the C station can also be transmitted directly to the a station via optical fibres and launched onto the second feeder FC2 of the a station, providing large double-ganged-hop protection.
Therefore, in the A, B, C station handover operation state, the double-side linked jump protection of the first contact network section CL-1 and the second contact network section CL-2 can be reliably realized, and the actual process is similar to the implementation process in the normal state, and is not described herein again.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the invention as described above, according to the common technical knowledge and conventional means in the field.
Claims (4)
1. A dual edge tandem hop device (GD) based on fiber optic communications, characterized by: the double-side united-hop device (GD) is provided with a first switching input end (SWITCH1), a second switching input end (SWITCH2), a first group of digital quantity input ends, a first group of digital quantity output ends, a first group of optical fiber interfaces (OPTA), a second group of digital quantity input ends, a second group of digital quantity output ends and a second group of optical fiber interfaces (OPTB), wherein the first group of digital quantity input ends are provided with N first digital quantity input ends (A _ IN), the first group of digital quantity output ends are provided with N first digital quantity output ends (A _ OUT), the first group of optical fiber interfaces (OPTA) comprise a first transmitting end (TXA) and a first receiving end (RXA), the second group of optical fiber interfaces (OPTB) comprise a second transmitting end (TXB) and a second receiving end (RXB), the second group of digital quantity input ends are provided with N second digital quantity input ends (B _ IN), and the second group of digital quantity output ends are provided with N second digital quantity output ends (B _ OUT), wherein N is a positive integer; the bilateral tandem hop device has the following communication characteristics: when both the first switching input (SWITCH1) and the second switching input (SWITCH2) are powered down, the fault detection result electrical signals input by the first digital quantity input ends (A _ IN) are respectively converted into optical signals and then are sent OUT through the first sending end (TXA), each piece of fault detection result information contained IN the optical signals input by the first receiving end (RXA) is converted into a fault detection result electrical signal and then is output through the first digital quantity output end (A _ OUT), the fault detection result electrical signals input by the second digital quantity input ends (B _ IN) are respectively converted into optical signals and then are sent OUT through the second sending end (TXB), each piece of fault detection result information contained IN the optical signals input by the second receiving end (RXB) is converted into a fault detection result electrical signal and then is output through the second digital quantity output end (B _ OUT); when the first switching input terminal (SWITCH1) is powered on, the first transmitting Terminal (TXA) is connected with a second receiving terminal (RXB), the first receiving terminal (RXA) is connected with a second transmitting Terminal (TXB), and the first group of digital quantity input terminals, the first group of digital quantity output terminals, the second group of digital quantity input terminals and the second group of digital quantity output terminals are all disabled.
2. A double side leapfrog device (GD) according to claim 1, characterized in that: the double-side linked jump device (GD) is provided with a fault ALARM normally closed node output end (ALARM) and a fault detection module; the fault detection module can control the fault ALARM normally closed node output end (ALARM) to supply power to the outside when detecting that any one input end of the double-side jump device has a fault or any one output end has a fault or a working power supply is lost or any one optical fiber interface is disconnected.
3. A double side leapfrog device (GD) according to claim 1 or 2, characterized in that: the double-side jump device (GD) is realized by FPGA modeling.
4. A bilateral united-tripping protection system based on optical fiber communication is applied to a direct-current traction power supply system, the direct-current traction power supply system comprises a contact network (CL) and at least three traction substations, each traction substation is arranged along the extension direction of the contact network (CL), and the contact network (CL) is divided into contact network sections with corresponding number according to the arrangement direction of each traction substation; each traction substation is provided with a first feeder (FC1) and a second feeder (FC2), each first feeder (FC1) and each second feeder (FC2) are connected in series with a feeder breaker (QF) and a feeder disconnector (QS), any one of the traction substations can be used as a middle position traction substation (B), two traction substations adjacent to the middle position traction substation (B) are respectively called a front position traction substation (A) and a rear position traction substation (C), a contact network interval between the middle position traction substation (B) and the front position traction substation (A) is defined as a first interval (CL-1), and a contact network interval between the middle position traction substation (B) and the rear position traction substation (C) is defined as a second interval (CL-2), the first contact network section (CL-1) and the second contact network section (CL-2) are connected through a cross-over isolating switch (YQS), a first feeder (FC1) of the middle position traction substation (B) and a second feeder (FC2) of the front position traction substation (A) supply power to the first contact network section (CL-1), and a second feeder (FC2) of the middle position traction substation (B) and a first feeder (FC1) of the rear position traction substation (C) supply power to the first contact network section (CL-1) together; wherein the said separation and reunion switch (YQS) of the said handoff has auxiliary contacts (RT1) in pace with their on-off position state;
the method is characterized in that:
the double side gang jump protection system is provided with a double side gang jump device (GD) as claimed in any one of claims 1 to 3 for each of the traction substations, and is provided with a first frame leakage protection device (K1) for detecting a fault condition of the first feeder (FC1) and a second frame leakage protection device (K2) for detecting a fault condition of the second feeder (FC2) for each of the traction substations;
-a double side ganged-hop device (GD), a first frame leakage protection device (K1) and a second frame leakage protection device (K2) for any one of said intermediate traction substations (B): a first switching input (SWITCH1) and a second switching input (SWITCH2) of the double-sided gang tripping device (GD) are connected to a direct current power supply through an auxiliary contact (RT1) of the intermediate traction substation (B), so that the first switching input (SWITCH1) and the second switching input (SWITCH2) are both de-energized when the auxiliary contact (RT1) is in the off-position state, and the first switching input (SWITCH1) is energized when the auxiliary contact (RT1) is in the on-position state; each fault detection result detected by the first frame leakage protection device (K1) is output to one first digital quantity input end (A _ IN) of the double-side linked-tripping device (GD), each fault detection result detected by the second frame leakage protection device (K2) is output to one second digital quantity input end (B _ IN) of the double-side linked-tripping device (GD), a first sending end (TXA) and a first receiving end (RXA) of the double-side linked-tripping device (GD) are respectively connected with a second receiving end (RXB) and a second sending end (TXB) of the double-side linked-tripping device (GD) of the front position traction substation (A), a second sending end (TXB) and a second receiving end (RXB) of the double-side linked-tripping device (GD) are respectively connected with a first receiving end (RXA) and a first sending end (RXA) of the double-side linked-tripping device (GD) of the rear position traction substation (TXC), each first digital output end (A _ OUT) of the double-sided united-hop device (GD) is connected with a feeder breaker (QF) switching-on and switching-off control end of a first feeder (FC1) of the intermediate-position traction substation (B) through a first united-hop action node (J1), so that the feeder breaker (QF) of the first feeder (FC1) is switched off when any first digital output end (A _ OUT) of the double-sided united-hop device (GD) outputs an electric signal indicating that a fault detection result is a fault, and each second digital output end (B _ OUT) of the double-sided united-hop device (GD) is connected with a feeder breaker (QF) switching-on and switching-off control end of a second feeder (FC2) of the intermediate-position traction substation (B) through a second united-hop action node (J2), so that the feeder breaker (QF) of the second feeder (FC2) is switched on any one of the second digital output ends (QF) of the double-united-hop device (GD) B _ OUT) outputs an electrical signal indicating that the fault detection result is a fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423548.0A CN107147090B (en) | 2017-06-07 | 2017-06-07 | Bilateral united-hop device and bilateral united-hop protection system based on optical fiber communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423548.0A CN107147090B (en) | 2017-06-07 | 2017-06-07 | Bilateral united-hop device and bilateral united-hop protection system based on optical fiber communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107147090A CN107147090A (en) | 2017-09-08 |
| CN107147090B true CN107147090B (en) | 2021-06-01 |
Family
ID=59780608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710423548.0A Active CN107147090B (en) | 2017-06-07 | 2017-06-07 | Bilateral united-hop device and bilateral united-hop protection system based on optical fiber communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107147090B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414888A (en) * | 2018-01-12 | 2018-08-17 | 广州市扬新技术研究有限责任公司 | A kind of localization method of urban rail transit contact network to rail failure |
| CN108957238B (en) * | 2018-08-01 | 2020-11-03 | 广州白云电器设备股份有限公司 | Device and method for positioning faults of urban rail transit contact network |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060047091A (en) * | 2004-11-15 | 2006-05-18 | 한국철도기술연구원 | Bus differential protective relaying system in ungrounded dc traction power supply system and control method thereof |
| CN101969191A (en) * | 2010-10-29 | 2011-02-09 | 南京因泰莱电器股份有限公司 | Optical fiber blocking override-avoiding tripping system |
| CN102522732A (en) * | 2011-12-06 | 2012-06-27 | 国电南瑞科技股份有限公司 | Direct-current protection system with multiple paths of optical fiber interfaces and direct-current protection method |
| CN103346543A (en) * | 2013-07-09 | 2013-10-09 | 张向浩 | Transfer intertrip electronic device of controlling cable with disconnection alarm function |
| 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 |
| 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 |
-
2017
- 2017-06-07 CN CN201710423548.0A patent/CN107147090B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060047091A (en) * | 2004-11-15 | 2006-05-18 | 한국철도기술연구원 | Bus differential protective relaying system in ungrounded dc traction power supply system and control method thereof |
| CN101969191A (en) * | 2010-10-29 | 2011-02-09 | 南京因泰莱电器股份有限公司 | Optical fiber blocking override-avoiding tripping system |
| CN102522732A (en) * | 2011-12-06 | 2012-06-27 | 国电南瑞科技股份有限公司 | Direct-current protection system with multiple paths of optical fiber interfaces and direct-current protection method |
| CN103346543A (en) * | 2013-07-09 | 2013-10-09 | 张向浩 | Transfer intertrip electronic device of controlling cable with disconnection alarm function |
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 基于光纤数字通信的直流双边联跳保护方案;王开康;《都市快轨交通》;20110831;第24卷(第4期);第105-108页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107147090A (en) | 2017-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101867223A (en) | Automatic system fault handling method of distribution network containing a plurality of distributed power supplies | |
| CN109193552B (en) | Intelligent distributed protection self-healing control system and configuration method | |
| CN102611082B (en) | Self-adaptive feeder neighborhood interactive fault-tolerant relay protection method for power distribution network | |
| CN109687415B (en) | Fault diagnosis isolation recovery method and system for distributed data transmission unit | |
| CN104113141A (en) | Intelligent lengthways interconnected feeder line automatic control method | |
| CN211880174U (en) | Self-adaptive differential protection device based on 5G wireless communication | |
| CN204068430U (en) | A kind of intelligence longitudinally interconnected feeder automation control system | |
| US20180219371A1 (en) | Medium voltage power supply | |
| CN202444323U (en) | Feeder automation system based on optical longitudinal differential protection principle | |
| CN107147090B (en) | Bilateral united-hop device and bilateral united-hop protection system based on optical fiber communication | |
| CN104924922B (en) | Bilateral combination jump protection system of direct-current traction power supply system based on digital communications | |
| CN208862570U (en) | Ring-main unit and bicyclic net type power distribution network | |
| CN107611939B (en) | Regional power supply looped network fault quick isolation and load transfer method | |
| CN113162235A (en) | Urban rail transit intelligent substation system | |
| CN202435021U (en) | Automatic fault isolation system for distribution network feed line | |
| CN104934949B (en) | DC traction power-supply system two-sided anti-interference protection system based on fiber optic communication | |
| CN208753979U (en) | A kind of low-voltage distribution system | |
| CN203014357U (en) | GOOSE message/switch value conversion device for relay protection digitized transformation | |
| CN108718087B (en) | Spare power automatic switching system suitable for medium-voltage power supply ring network of rail transit | |
| CN108923393B (en) | Method for isolating faults in station of station integrated power distribution terminal | |
| CN106787204A (en) | A kind of intelligent terminal for being applied to current conversion station | |
| CN113162234B (en) | Direct current combined-hop system based on GOOSE communication and monitoring method | |
| CN205565710U (en) | Magnetic suspension engineering jumps device bilateral antithetical couplet | |
| CN107026433B (en) | Rapid protection system and method for current collection circuit of new energy power station | |
| CN202260425U (en) | Master-slave type double-side inter-tripping device adopting control cable transmission way |
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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yi Inventor after: Chang Baobo Inventor after: Zheng Changquan Inventor after: Xu Junjie Inventor after: Huang Miaoying Inventor after: Guan Qingkun Inventor after: Yang Zhiwei Inventor after: Zhu Zhiwen Inventor after: Jiang Haoxian Inventor after: Zhou Dalin Inventor after: Jin Hui Inventor after: Wang Ping Inventor after: Huang Shanshan Inventor after: Chen Cansen Inventor after: Wang Pan Inventor after: Xie Yuehai Inventor after: Yu Long Inventor before: Wang Yi Inventor before: Guan Qingkun Inventor before: Yang Zhiwei Inventor before: Zhu Zhiwen Inventor before: Jiang Haoxian Inventor before: Chen Cansen Inventor before: Wang Pan Inventor before: Xie Yuehai Inventor before: Yu Long Inventor before: Chang Baobo Inventor before: Zheng Changquan Inventor before: Xu Junjie Inventor before: Huang Miaoying |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200713 Address after: 510308 Guangdong Guangzhou Haizhuqu District Xingang East Road 618 South Fung Hui World Exhibition Center office floor eleventh to 14 floors Applicant after: GUANGZHOU METRO GROUP Co.,Ltd. Applicant after: GUANGZHOU BAIYUN ELECTRIC EQUIPMENT Co.,Ltd. Address before: 510460, No. 18 Daling Road South, Baiyun Town, Baiyun District, Guangdong, Guangzhou Applicant before: GUANGZHOU BAIYUN ELECTRIC EQUIPMENT Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |