CN111551818A - Automatic electric leakage monitoring and alarming system and equipment for bow net feed - Google Patents
Automatic electric leakage monitoring and alarming system and equipment for bow net feed Download PDFInfo
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- CN111551818A CN111551818A CN202010290771.4A CN202010290771A CN111551818A CN 111551818 A CN111551818 A CN 111551818A CN 202010290771 A CN202010290771 A CN 202010290771A CN 111551818 A CN111551818 A CN 111551818A
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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Abstract
The invention provides an automatic electric leakage monitoring and alarming system and device for bow net feed, comprising: the system comprises an electric leakage sensor, a data processing module, a communication module, a data processing server and a power supply module for supplying power to internal elements of the system; the automatic electric leakage monitoring and alarming system for the bow net feed performs electric leakage current detection through an electric leakage sensor, and the data processing module compares the received electric leakage current with a threshold value; if the threshold value is exceeded, the data processing module sends alarm information to the data processing server through the communication module. And the monitoring personnel acquires the current state information through the data processing server and makes a corresponding solution according to the alarm information. The threat of the electric leakage of the bow net feed system to the safety of the train is avoided; the safety of the railway pantograph-catenary feed system is improved, and the electric energy loss is reduced. Through the detection of the leakage electric sensor, the data processing module compares the leakage electric sensor with the leakage electric sensor, and monitoring personnel acquire state information through the data processing server, so that the personal safety of the personnel is ensured.
Description
Technical Field
The invention relates to the technical field of power railway feed, in particular to an automatic electric leakage monitoring and alarming system and device for bow net feed.
Background
Under normal conditions, the power railway bow net feed system transmits power to an overhead contact net through a feeder line, and then the power railway bow net feed system supplies power to a motor car for utilization. When the insulation is good, there is no leakage current, but under fault conditions, such as breakdown of the insulator towers or poor insulation, leakage current will occur.
The current electric railway bow net feed system has great electric leakage hazard and can threaten the safe operation of trains; threatens the safety of the bow net feed system of the railway. And also easily causes a loss of electric power. And threatens the personal safety of personnel.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an automatic electric leakage monitoring and alarming system with bow net feed, which comprises: the system comprises an electric leakage sensor, a data processing module, a communication module, a data processing server and a power supply module for supplying power to internal elements of the system;
the electric leakage sensor is arranged on the overhead contact network bracket and the F line connecting wire, senses electric leakage current and transmits the electric leakage current to the data processing module;
the data processing module compares the received leakage current with a threshold value;
if the threshold value is exceeded, the data processing module sends alarm information to the data processing server through the communication module;
the data processing module also sends the received leakage current data to the data processing server in real time through the communication module.
Preferably, the electrical leakage sensor comprises: the circuit comprises a Hall sensor, a resistor R1, a resistor R2, a resistor R3, a resistor R4 and an operational amplifier U1;
the Hall sensor is sleeved on the overhead cable, and a first output end of the Hall sensor is respectively connected with a first end of the resistor R4 and one pin of the operational amplifier U1 through a resistor R1;
the second output end of the Hall sensor is respectively connected with the first end of a resistor R3 and two pins of an operational amplifier U1 through a resistor R2;
the second end of the resistor R4 is respectively connected with five pins of the operational amplifier U1 and the output end of the leakage electric sensor;
the second end of the resistor R3 is grounded;
the three pins of the operational amplifier U1 are connected with a power supply, and the four pins are connected with a low level;
the Hall sensor is packaged by a silicon rubber shell, and the direct-current withstand voltage is more than or equal to 15 kilovolts; the current accurate acquisition range is 50-4000A; temperature range: -30-70 ℃ and the waterproof and dustproof grade is IPX 68.
Preferably, the system further comprises: an A/D converter;
the electric leakage sensor is connected with the data processing module through the A/D converter;
the A/D converter converts the current signals collected by the leakage electric sensor into digital signals and transmits the digital signals to the data processing module for processing.
Preferably, the data processing module sends heartbeat information to the data processing server every time a preset duration passes;
after the preset duration, the data processing server does not receive heartbeat information sent by the data processing module, and then in-place confirmation information is sent to the data processing module;
after the preset time, if the data processing server receives the in-place information of the data processing module, the monitoring is continued;
if the on-site information is not received, sending out a communication interruption alarm prompt or a monitoring fault alarm prompt.
Preferably, the system further comprises: a positioning module and a time module;
the time module and the positioning module are respectively connected with the data processing module;
the data processing module acquires the position information through the positioning module and acquires the time information through the time module;
the data processing module also sends the received leakage current data, the position information and the time information to the data processing server in real time through the communication module.
The present invention also provides an apparatus comprising: the system comprises an electric leakage sensor, a data processing module, a communication module, a data processing server, a power supply module and a memory;
the memory is used for storing a computer program and the automatic electric leakage monitoring and alarming system for bow net feed; and the data processing module is used for executing the computer program and the automatic electric leakage monitoring and alarming system for the pantograph-catenary feed so as to realize the automatic electric leakage monitoring and alarming system for the pantograph-catenary feed.
According to the technical scheme, the invention has the following advantages:
the automatic electric leakage monitoring and alarming system for the bow net feed performs electric leakage current detection through an electric leakage sensor, and the data processing module compares the received electric leakage current with a threshold value; if the threshold value is exceeded, the data processing module sends alarm information to the data processing server through the communication module. And the monitoring personnel acquires the current state information through the data processing server and makes a corresponding solution according to the alarm information. The threat of the electric leakage of the bow net feed system to the safety of the train is avoided; the safety of the railway pantograph-catenary feed system is improved, and the electric energy loss is reduced. Through the detection of the leakage electric sensor, the data processing module compares the leakage electric sensor with the leakage electric sensor, and monitoring personnel acquire state information through the data processing server, so that the personal safety of the personnel is ensured.
Drawings
FIG. 1 is a schematic diagram of an automatic leakage monitoring and alarming system with bow net feed;
figure 2 is a schematic diagram of a leakage electrical sensor;
FIG. 3 is a schematic diagram of a leakage electrical sensor;
FIG. 4 is a schematic diagram of an embodiment of an automatic leakage monitoring and alarming system with bow net feeding;
FIG. 5 is a schematic communication diagram of an automatic leakage monitoring and alarming system with bow net feed;
FIG. 6 is a schematic view of a tower;
FIG. 7 is a flow chart of system monitoring.
Detailed Description
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The invention provides an automatic electric leakage monitoring and alarming system with bow net feed, as shown in figure 1, comprising: the system comprises an electric leakage sensor 1, a data processing module 2, a communication module 3, a data processing server 4 and a power supply module 5 for supplying power to internal elements of the system;
the electric leakage sensor 1 is arranged on a connecting line of an overhead contact network bracket 13 and an F line 12, senses electric leakage current and transmits the electric leakage current to the data processing module 2; the data processing module 2 compares the received leakage current with a threshold value; if the threshold value is exceeded, the data processing module 2 sends alarm information to the data processing server 4 through the communication module 3; the data processing module 2 also sends the received leakage current data to the data processing server 4 in real time through the communication module 3.
As shown in fig. 2 and 3, the electrical leakage sensor 1 of the present invention includes: the circuit comprises a Hall sensor, a resistor R1, a resistor R2, a resistor R3, a resistor R4 and an operational amplifier U1; the Hall sensor is sleeved on the overhead cable, and a first output end of the Hall sensor is respectively connected with a first end of the resistor R4 and one pin of the operational amplifier U1 through a resistor R1; the second output end of the Hall sensor is respectively connected with the first end of a resistor R3 and two pins of an operational amplifier U1 through a resistor R2; the second end of the resistor R4 is respectively connected with five pins of the operational amplifier U1 and the output end of the leakage electric sensor 1; the second end of the resistor R3 is grounded; the three pins of the operational amplifier U1 are connected with a power supply, and the four pins are connected with a low level; the op-amp U1 acts to amplify the sense signal.
The Hall sensor is packaged by a silicon rubber shell, and the direct-current withstand voltage is more than or equal to 15 kilovolts; the current accurate acquisition range is 50-4000A; temperature range: -30-70 ℃ and the waterproof and dustproof grade is IPX 68.
The Hall sensor comprises a magnetic ring 16, wherein the magnetic ring 16 is connected with a locking bolt 18 through a rotating shaft 15 to form a closed loop. The bottom of the magnetic ring 16 is connected with a support and a connecting terminal 17.
As shown in fig. 4, the system of the present invention further includes: an A/D converter 6; the electric leakage sensor 1 is connected with the data processing module 2 through an A/D converter 6; the A/D converter 6 converts the current signals collected by the leakage electric sensor 1 into digital signals and transmits the digital signals to the data processing module 2 for processing.
The power supply module 5 for supplying power to the internal elements of the system can adopt a wind power generation or photovoltaic power generation mode because the power supply module is used outdoors, and is provided with a storage battery and a charging power supply controller.
As shown in fig. 5, the communication module 3 adopts a communication mode of combining the LORA module and the 4G module, the LORA is a wireless spread spectrum communication mode for converting military industry into civil use, and has the characteristics of convenient networking, long transmission distance, strong anti-interference capability, capability of communicating and the like, and the system adopts the mode of uploading data to a main server through the 4G gateway after 20-40 collectors are networked through the LARO module to perform data transmission. The data processing module 2 adopts an ARM processor and peripheral circuits thereof.
The data processing server 4 adopts an industrial control computer to configure a windows operating system. And various functions can be developed according to the requirements of users, and a human-computer interaction interface can be configured.
As shown in fig. 6, as an automatic leakage monitoring and alarming system with bow net feeding, a field monitoring device is configured to a corresponding monitoring position, and specifically, a vertical rod 10 is provided; a plurality of cross arms are arranged at the upper part of the upright stanchion 10; one of the cross arms is provided with an F wire 12 through an insulating porcelain insulator; the other cross arm is provided with a feeder line 11 through an insulating porcelain insulator; the other cross arm is provided with an overhead contact net bracket 13 through an insulating porcelain insulator; the feeder line 11 supplies power to the overhead cable, and the current of the F line 12 is zero under the normal condition; if a leakage fault occurs, the leakage current is drained through the F-line 12, and the F-line 12 generates 1500-3800A of F-line 12 current. Like this, electric leakage sensor 1 installs on overhead contact net support 13 and F line 12 connecting wire, and the response electric leakage current to transmit electric leakage current for data processing module 2, realized the effect that detects. The cross arms on the uprights 10 are arranged parallel to one another and at different height ranges.
In order to realize the positioning and time obtaining of the monitoring data, the system further comprises: a positioning module 7 and a time module 8; the time module 8 and the positioning module 7 are respectively connected with the data processing module 2; the data processing module 2 acquires the position information through the positioning module 7 and acquires the time information through the time module 8; the data processing module 2 also sends the received leakage current data, the position information and the time information to the data processing server 4 in real time through the communication module 3.
In order to enable the monitoring process to be continuous, if communication interruption occurs, or the monitoring interruption data processing server 4 can timely learn and give an alarm prompt. As shown in fig. 7, the data processing module 2 sends heartbeat information to the data processing server 4 every time a preset duration elapses;
after the preset time length, if the data processing server 4 does not receive the heartbeat information sent by the data processing module 2, in-place confirmation information is sent to the data processing module 2;
after the preset time, if the data processing server 4 receives the in-place information of the data processing module 2, the monitoring is continued; if the on-site information is not received, sending out a communication interruption alarm prompt or a monitoring fault alarm prompt.
Further, the data processing server 4 respectively acquires leakage current data, position information and time information, compares the leakage current data with corresponding previous leakage current data to form previous comparison information, and displays and alarms the threshold comparison information and the previous comparison information; and integrating leakage current data, displaying by configuring an electric power supply data curve graph and a leakage current data curve graph, and performing visual output, so that a user can track the electric power supply data curve graph and the leakage current data curve graph in real time and perform tracking management monitoring on a power supply process.
Therefore, monitoring personnel at the monitoring end can carry out all-around monitoring through the curve graph output by the data processing server 4, and the stable operation of the system is ensured.
In addition, in the mode of processing the alarm, the data processing server 4 is further used for respectively sending the alarm data grade, the alarm content of the bow net feed data and the alarm grade sent by the data processing module 2 to the user in the modes of short messages, mails and terminal alarm prompts;
the current bow net feed alarm information, the alarm content and the alarm level are sent to the terminal equipment corresponding to the monitoring personnel; configuring bow net feed information alarm issuing according to user preset conditions;
the data processing server 4 provides the clustering analysis of the bow net feed system alarm for the user; providing alarm time information, alarm position information and alarm data information for monitoring personnel; after the bow net feed system gives an alarm, pushing alarm information by defining alarm filtering conditions and notification rules;
after alarm information is generated and each stage of alarm process processing, current system state information is pushed for a user in real time, and whether current data exceeds a threshold value or not is judged in real time;
when the bow net feed system generates alarm information, the system automatically writes alarm time information, alarm position information and alarm data information into a log;
the device is also used for classifying the bow net feed information alarm, triggering the alarm output, and storing alarm time information, alarm position information and alarm data information into a memory;
providing a browsing and querying port for the storage; and refreshing the generated bow net feed information alarm information in real time, setting different colors according to the severity level of the bow net feed information alarm information for display, and displaying alarm time information, alarm position information and alarm data information.
As a system provided by the present invention, the present invention also provides an apparatus comprising: the system comprises an electric leakage sensor 1, a data processing module 2, a communication module 3, a data processing server 4, a power supply module 5 and a memory; the memory is used for storing a computer program and the automatic electric leakage monitoring and alarming system for bow net feed; and the data processing module 2 is used for executing the computer program and the automatic electric leakage monitoring and alarming system for bow net feed so as to realize the automatic electric leakage monitoring and alarming system for bow net feed.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a bow net feed's electric leakage automatic monitoring alarm system which characterized in that includes: the system comprises an electric leakage sensor, a data processing module, a communication module, a data processing server and a power supply module for supplying power to internal elements of the system;
the electric leakage sensor is arranged on the overhead contact network bracket and the F line connecting wire, senses electric leakage current and transmits the electric leakage current to the data processing module;
the data processing module compares the received leakage current with a threshold value;
if the threshold value is exceeded, the data processing module sends alarm information to the data processing server through the communication module;
the data processing module also sends the received leakage current data to the data processing server in real time through the communication module.
2. The system of claim 1,
the leakage electric sensor comprises: the circuit comprises a Hall sensor, a resistor R1, a resistor R2, a resistor R3, a resistor R4 and an operational amplifier U1;
the Hall sensor is sleeved on the overhead cable, and a first output end of the Hall sensor is respectively connected with a first end of the resistor R4 and one pin of the operational amplifier U1 through a resistor R1;
the second output end of the Hall sensor is respectively connected with the first end of a resistor R3 and two pins of an operational amplifier U1 through a resistor R2;
the second end of the resistor R4 is respectively connected with five pins of the operational amplifier U1 and the output end of the leakage electric sensor;
the second end of the resistor R3 is grounded;
the three pins of the operational amplifier U1 are connected with a power supply, and the four pins are connected with a low level;
the Hall sensor is packaged by a silicon rubber shell, and the direct-current withstand voltage is more than or equal to 15 kilovolts; the current accurate acquisition range is 50-4000A; temperature range: -30-70 ℃ and the waterproof and dustproof grade is IPX 68.
3. The system according to claim 1 or 2,
the system further comprises: an A/D converter;
the electric leakage sensor is connected with the data processing module through the A/D converter;
the A/D converter converts the current signals collected by the leakage electric sensor into digital signals and transmits the digital signals to the data processing module for processing.
4. The system according to claim 1 or 2,
the data processing module sends heartbeat information to the data processing server every time a preset time length passes;
after the preset duration, the data processing server does not receive heartbeat information sent by the data processing module, and then in-place confirmation information is sent to the data processing module;
after the preset time, if the data processing server receives the in-place information of the data processing module, the monitoring is continued;
if the on-site information is not received, sending out a communication interruption alarm prompt or a monitoring fault alarm prompt.
5. The system according to claim 1 or 2,
the system further comprises: erecting a rod;
a plurality of cross arms are arranged at the upper part of the upright stanchion;
one of the cross arms is provided with an F wire through an insulating porcelain insulator;
the other cross arm is provided with a feeder line through an insulating porcelain insulator;
the other cross arm is provided with an overhead contact net bracket through an insulating porcelain insulator;
the feeder line supplies power to the overhead cable, and the current of the F line is zero under the normal condition;
if a leakage fault occurs, the leakage current is drained through the F wire, and the F wire generates the F wire current of 1500-3800A.
6. The system according to claim 1 or 2,
the system further comprises: a positioning module and a time module;
the time module and the positioning module are respectively connected with the data processing module;
the data processing module acquires the position information through the positioning module and acquires the time information through the time module;
the data processing module also sends the received leakage current data, the position information and the time information to the data processing server in real time through the communication module.
7. The system according to claim 1 or 2,
the communication module adopts a communication mode of combining an LORA module and a 4G module;
the data processing module adopts an ARM processor and a peripheral circuit thereof.
8. The system of claim 6,
the data processing server respectively acquires leakage current data, position information and time information, compares the leakage current data with corresponding previous leakage current data to form previous comparison information, and displays and alarms the threshold comparison information and the previous comparison information;
and integrating leakage current data, displaying by configuring an electric power supply data curve graph and a leakage current data curve graph, and performing visual output, so that a user can track the electric power supply data curve graph and the leakage current data curve graph in real time and perform tracking management monitoring on a power supply process.
9. The system of claim 6,
the data processing server is also used for respectively sending the alarm data grade, the bow net feed data alarm content and the alarm grade sent by the data processing module to a user in a short message, mail and terminal alarm prompting mode;
the current bow net feed alarm information, the alarm content and the alarm level are sent to the terminal equipment corresponding to the monitoring personnel; configuring bow net feed information alarm issuing according to user preset conditions;
the data processing server provides the clustering analysis of the warning of the bow net feed system for the user; providing alarm time information, alarm position information and alarm data information for monitoring personnel;
after the bow net feed system gives an alarm, pushing alarm information by defining alarm filtering conditions and notification rules;
after alarm information is generated and each stage of alarm process processing, current system state information is pushed for a user in real time, and whether current data exceeds a threshold value or not is judged in real time;
when the bow net feed system generates alarm information, the system automatically writes alarm time information, alarm position information and alarm data information into a log;
the device is also used for classifying the bow net feed information alarm, triggering the alarm output, and storing alarm time information, alarm position information and alarm data information into a memory;
providing a browsing and querying port for the storage;
and refreshing the generated bow net feed information alarm information in real time, setting different colors according to the severity level of the bow net feed information alarm information for display, and displaying alarm time information, alarm position information and alarm data information.
10. An apparatus, comprising: the system comprises an electric leakage sensor, a data processing module, a communication module, a data processing server, a power supply module and a memory;
the memory is used for storing a computer program and the automatic electric leakage monitoring and alarming system for bow net feed;
a data processing module for executing the computer program and the automatic pantograph-fed leakage monitoring and alarming system to realize the automatic pantograph-fed leakage monitoring and alarming system according to claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010290771.4A CN111551818A (en) | 2020-04-14 | 2020-04-14 | Automatic electric leakage monitoring and alarming system and equipment for bow net feed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010290771.4A CN111551818A (en) | 2020-04-14 | 2020-04-14 | Automatic electric leakage monitoring and alarming system and equipment for bow net feed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113593400A (en) * | 2021-08-04 | 2021-11-02 | 国网山东省电力公司新泰市供电公司 | RFID electronic lead sealing system |
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Application publication date: 20200818 |