CN203104124U - Power line abnormal electric leakage detection and remote control device - Google Patents
Power line abnormal electric leakage detection and remote control device Download PDFInfo
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- CN203104124U CN203104124U CN 201320119538 CN201320119538U CN203104124U CN 203104124 U CN203104124 U CN 203104124U CN 201320119538 CN201320119538 CN 201320119538 CN 201320119538 U CN201320119538 U CN 201320119538U CN 203104124 U CN203104124 U CN 203104124U
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Abstract
The utility model relates to a power line abnormal electric leakage detection and remote control device. The power line abnormal electric leakage detection and remote control device is characterized in that at least two current detection terminals constitute a tree topology structure along a power supply circuit, each current detection terminal simultaneously collects current data and transmits the current data to a control center, a computer program of the control center calculates the algebraic sum of currents according to the tree topology structure formed by each current detection terminal, by considering the measuring error and normal atmospheric discharge loss, once the detected current of a father node is abnormal and larger than the algebraic sum of currents of child nodes, a real-time connection is established by a data calling way, and a power failure command is sent to a current control device for the father node, so that the electric power of the faulty line is cut off. After the application of the power line abnormal electric leakage detection and remote control device, the loss of power failure can be reduced.
Description
Technical field
The utility model relates to unusual detection of electrical leakage of a kind of power circuit and remote control, belongs to electric power control and communication technical field.
Background technology
The unusual electric leakage of power circuit generally is because short trouble causes, serious accident such as can cause waste of energy, breaking out of fire, cause casualties.The detection power circuit leaks electricity unusually and need gather the current data of each distribution node of electrical network simultaneously, in low frequency and DC power transmission line, can be that zero principle detects according to the node current algebraical sum, the electric leakage in case note abnormalities, should in time disconnect the supply of electric power behind the malfunctioning node that is short-circuited, thereby reduce the loss.Be widely used in remote control field based on 2G and 3G mobile communication technology, as remote meter reading, remote data acquisition, Long-distance Control etc., Chinese utility model as Granted publication CN 202663199 U, a kind of remote power distribution control device is disclosed, floor manager's mobile phone connects the GSM communication module by communication network, the GSM communication module communicates by serial port circuit, and serial port circuit connects master controller, and master controller is implemented control by relay circuit control distribution instrument; As publication number is the Chinese invention patent of CN101325346A, a kind of wireless remote control method for electric power active filter is disclosed, utilize detection signal module, signal conversion module, GPRS DTU module, transfer signals to control centre by GPRS network, the configuration software of control centre is handled signal, returns control command to the scene by GPRS again.The characteristics that communicate by GPRS network are that cost is low, but real-time can not guarantee.Above-mentioned patented technology provides image data and has implemented the means of control, but can not solve the judgement of the behavior of the unusual electric leakage of power circuit.
Summary of the invention
The purpose of this utility model is: unusual detection of electrical leakage of a kind of power circuit and remote control are provided, and for building intelligent grid, the loss that reduces electric power accident is of great importance.In order to reach this purpose, technology path of the present utility model is:
1. unusual detection of electrical leakage of power circuit and remote control comprise control centre's computer (1), the mobile module (2) that is connected with the control centre computer, at least two current detecting and control terminal (3); Described current detecting and control terminal comprise mobile communication module (4), current measurement module (5), electromagnetic relay module (7), micro controller module (6), it is characterized in that: also comprise time-of-day clock module (10), powered battery module (8), eeprom memory (9);
Described control centre computer (1) is connected by wired modes such as RS-232 or RS-485 with described mobile module (2), described mobile module (2) is connected by wireless communication technology with control terminal (3) with described current detecting, when the school is assigned by described control centre, closure, ON-and OFF-command to described current detecting and the control terminal, need earlier between described mobile module (2) and described mobile communication module (4), to set up data call and be connected in real time;
Described mobile communication module (4), current measurement module (5), electromagnetic relay module (7), time-of-day clock module (10), powered battery module (8), eeprom memory (9) are electrically connected with described micro controller module (6);
Described at least two current detecting and control terminal (3) are installed along power supply power electric line, form tree topology; Current detecting and control terminal (3) detect (A, B, C) phase current effective value; Described current measurement module (5) connects the power supply circuit by instrument transformer, and described electromagnetic relay module (7) is connected to the power supply circuit by A.C. contactor, circuit breaker etc.
2. unusual detection of electrical leakage of power circuit and long-range control method comprise following operation:
One, initialization operation
The computer program of operation makes described mobile module (2) sign in to the data traffic net (GPRS) of communication common carrier by the AT instruction in the described control centre computer (1), and obtain IP address and port address, every the regular hour, the computer program of operation sends data call to each described current detecting and control terminal (3) respectively by the mobile module (2) that is connected with the control centre computer in the described control centre computer (1), described current detecting receives the latter two foundation of this data call request with control terminal (3) and is connected in real time, both sides can carry out exchanges data, the computer program of operation sends to described current detecting and control terminal (3) with this IP address and port address in the described control centre computer (1), described current detecting and control terminal (3) are revised IP address and the port address value in its eeprom memory (9), finish IP address and port address and upgrade operation; The computer program of operation sends to described current detecting and control terminal (3) with the time-of-day clock time in the described control centre computer (1), and described current detecting and control terminal (3) are revised the value of its time-of-day clock module (8), operate when finishing the school; The computer program of operation sends to described current detecting and control terminal (3) with acquisition time in the described control centre computer (1), described current detecting and control terminal (3) are revised the acquisition time value in its eeprom memory (9), finish acquisition time simultaneous operation, the data call that disconnects afterwards between the two connects;
The computer program of operation is set up the tree topology model with described current detecting and control terminal (3) in the described control centre computer (1);
Described current detecting and control terminal (3) sign in to the data traffic net (GPRS) of communication common carrier;
Two, gather and monitor operation
Each described current detecting and control terminal (3) are according to the acquisition time of its eeprom memory (9) storage, regularly, add that acquisition time label, terminal address sign indicating number send to the target location by its eeprom memory (9) stored IP address and port address appointment with the current data that collects;
The computer program of operation compares according to algebraical sum and its father node electric current (I father) of above-mentioned tree structure Model Calculation synchronization child node electric current (I) in the described control centre computer (1), consider the normal loss (△ I) of measure error and transmission line, just often: I father=∑ I+△ I, in case I father occurs〉∑ I+△ I, represent that then unusual electric leakage has taken place the circuit after this father node, should disconnect the supply of electric power behind this father node;
Three, control operation
The computer program of operation sends data call to the current detecting of above-mentioned father node with control terminal (3) by the mobile module (2) that is connected with the control centre computer and is connected in the described control centre computer (1), above-mentioned father node current detecting receives the latter two foundation of this data call request with control terminal (3) and is connected in real time, both sides can carry out exchanges data, the computer program of operation sends to described current detecting and control terminal (3) with cut-offing instruction in the described control centre computer (1), described current detecting and control terminal (3) are realized being attached thereto the A.C. contactor that connects by its electromagnetic relay module (7), the control of circuit breaker etc., thus the supply of electric power afterwards of this father node disconnected; The current detecting of above-mentioned father node and control terminal (3) return to the computer program that moves in the described control centre computer (1) with execution result, disconnect the data call between the two afterwards; After feeder line fault is removed,, send close commands, recover supply of electric power by artificial computer program by operation in control centre's computer (1).
The unusual detection of electrical leakage of power circuit and remote control and method according to above technical scheme proposition, combine the advantage of wireless communication technology, adopt the data cost of GPRS mode acquisition terminal low, adopt data call communication mode real-time good, control command assigns in time, accurate.Building intelligent grid, reducing and be significant aspect the loss that the power line short-circuit fault brings.
Description of drawings
Accompanying drawing 1 is a system architecture diagram of the present utility model; 1 is control centre's computer among the figure, and 2 is mobile module, and 3 is current detecting and control terminal;
The logical topology structure chart that accompanying drawing 2 is implemented for the utility model, R, C1, C2, C11, C12, C21, C111, C112, C113 are current detecting and control terminal among the figure, and Lc1, Lc2, Lc11, Lc12, Lc21, Lc111, Lc112, Lc113 are power transmission line.
Embodiment
In the accompanying drawing 1, control centre's computer (1) can be selected the desktop computer or the server that can run without interruption in 24 hours, mobile module (2) can select to have the 2G or the 3G mobile/mobile module of RS-232/RS485 serial communication interface, this mobile module is installed SIM card, and opens the service of GPRS data traffic, serve data calls and voice call service; Mobile communication module (4) in current detecting and the control terminal (3) can be selected module, current measurement module (5) employing at least 10 bit AD sample devices such as SIM300, to reach higher required precision, electromagnetic relay module (7) selectively operating voltage is the miniature relay of 12V, and micro controller module (6) can select MCS-51 series monolithic, time-of-day clock module (10) can select DS1302 etc., powered battery module (8) can select solar cell, eeprom memory (9) can select 24C08 etc.;
Described control centre computer (1) is connected by wired modes such as RS-232 or RS-485 with described mobile module (2), control centre's computer (1) is handled mobile module (2) by the AT instruction, described mobile module (2) is connected by wireless communication technology with control terminal (3) with described current detecting, when uploading current data with control terminal, described current detecting adopt the GPRS mode to be connected, when assigning the school, closure, ON-and OFF-command to described current detecting and control terminal adopt the data call mode to be connected in real time in described control centre.
Described mobile communication module (4), current measurement module (5), electromagnetic relay module (7), time-of-day clock module (10), powered battery module (8), eeprom memory (9) are electrically connected with described micro controller module (6), be designed to a control board, reserve the interface that connects instrument transformer and A.C. contactor.
Described at least two current detecting and control terminal (3) are installed along power supply power electric line, form tree topology; Current detecting and control terminal (3) detect (A, B, C) phase current effective value; Described current measurement module (5) connects the power supply circuit by instrument transformer, and described electromagnetic relay module (7) is connected to the power supply circuit by A.C. contactor, circuit breaker etc.
Among Fig. 2, R is a root node, it is the electric energy output station (as power plant or transformer station) of the electric power networks that is applied to of the utility model, C1, C2 is that its child node (can claim that also R is a father node, C1, C2 is a child node), Lr is the power transmission line of generator to distribution box, Lc1, Lc2 is that root node arrives child node C1, the power transmission line of C2, R, C1, C2 is current detecting of the present utility model and control terminal (3), each terminal has unique geocoding, in low frequency or DC circuit, following the node current algebraical sum is zero principle, atmospheric discharge and error of measurement instrument when considering high voltage power transmission, the electric current that flow into node R under the normal condition equals to flow out to from node R the electric current of C1 and C2, the normal loss sum, can be designated as be I father=∑ I+△ I.I father is for flowing into the electric current of node R in the formula, and I is for flowing out to the electric current of node C1 and C2 from node R, and △ I is atmospheric discharge and error of measurement instrument.
In like manner for C1, C11, C12 node, can think that C1 is a father node, C11, C12 are child node, satisfy above-mentioned computing formula equally.When the transmission line short trouble occurring, I father will appear〉∑ I+△ I, should disconnect the supply of electric power behind this father node.
Unusual detection of electrical leakage of power circuit and long-range control method comprise following operation:
One, initialization operation
The computer program of operation makes described mobile module (2) sign in to the data traffic net (GPRS) of communication common carrier by the AT instruction in the described control centre computer (1), and obtain IP address and port address, every the regular hour, the computer program of operation sends data call to each described current detecting and control terminal (3) respectively by the mobile module (2) that is connected with the control centre computer in the described control centre computer (1), described current detecting receives the latter two foundation of this data call request with control terminal (3) and is connected in real time, both sides can carry out exchanges data, the computer program of operation sends to described current detecting and control terminal (3) with this IP address and port address in the described control centre computer (1), described current detecting and control terminal (3) are revised IP address and the port address value in its eeprom memory (9), finish IP address and port address and upgrade operation; The computer program of operation sends to described current detecting and control terminal (3) with the time-of-day clock time in the described control centre computer (1), and described current detecting and control terminal (3) are revised the value of its time-of-day clock module (8), operate when finishing the school; The computer program of operation sends to described current detecting and control terminal (3) with acquisition time in the described control centre computer (1), described current detecting and control terminal (3) are revised the acquisition time value in its eeprom memory (9), finish acquisition time simultaneous operation, disconnect the data call between the two afterwards;
The computer program of operation is set up the tree topology model with described current detecting and control terminal (3) in the described control centre computer (1);
Described current detecting and control terminal (3) sign in to the data traffic net (GPRS) of communication common carrier;
Two, gather and monitor operation
Each described current detecting and control terminal (3) are according to the acquisition time of its eeprom memory (9) storage, regularly, add that acquisition time label, terminal address sign indicating number send to the target location by its eeprom memory (9) stored IP address and port address appointment with the current data that collects;
The computer program of operation compares according to algebraical sum and its father node electric current (I father) of above-mentioned tree structure Model Calculation synchronization child node electric current (I) in the described control centre computer (1), consider the normal loss (△ I) of measure error and transmission line, just often: I father=∑ I+△ I, in case I father occurs〉∑ I+△ I, represent that then unusual electric leakage has taken place the circuit after this father node, should disconnect the supply of electric power behind this father node;
Three, control operation
The computer program of operation sends data call by the mobile module (2) that is connected with the control centre computer to the current detecting and the control terminal (3) of above-mentioned father node in the described control centre computer (1), above-mentioned father node current detecting receives the latter two foundation of this data call request with control terminal (3) and is connected in real time, both sides can carry out exchanges data, the computer program of operation sends to described current detecting and control terminal (3) with cut-offing instruction in the described control centre computer (1), described current detecting and control terminal (3) are realized being attached thereto the A.C. contactor that connects by its electromagnetic relay module (7), the control of circuit breaker etc., thus the supply of electric power afterwards of this father node disconnected; The current detecting of above-mentioned father node and control terminal (3) return to the computer program that moves in the described control centre computer (1) with execution result, disconnect the data call between the two afterwards; After feeder line fault is removed,, send close commands, recover supply of electric power by artificial computer program by operation in control centre's computer (1).
Claims (1)
1. unusual detection of electrical leakage of power circuit and remote control comprise control centre's computer (1), the mobile module (2) that is connected with the control centre computer, at least two current detecting and control terminal (3); Described current detecting and control terminal comprise mobile communication module (4), current measurement module (5), electromagnetic relay module (7), micro controller module (6), it is characterized in that: also comprise time-of-day clock module (10), powered battery module (8), eeprom memory (9);
Described control centre computer (1) is connected by wired modes such as RS-232 or RS-485 with described mobile module (2), described mobile module (2) is connected by wireless communication technology with control terminal (3) with described current detecting, when the school is assigned by described control centre, closure, ON-and OFF-command to described current detecting and the control terminal, need earlier between described mobile module (2) and described mobile communication module (4), to set up data call and be connected in real time;
Described mobile communication module (4), current measurement module (5), electromagnetic relay module (7), time-of-day clock module (10), powered battery module (8), eeprom memory (9) are electrically connected with described micro controller module (6);
Described at least two current detecting and control terminal (3) are installed along power supply power electric line, form tree topology; Current detecting and control terminal (3) detect A, B, C phase current effective value; Described current measurement module (5) connects the power supply circuit by instrument transformer, and described electromagnetic relay module (7) is connected to the power supply circuit by A.C. contactor, circuit breaker etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320119538 CN203104124U (en) | 2013-03-17 | 2013-03-17 | Power line abnormal electric leakage detection and remote control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320119538 CN203104124U (en) | 2013-03-17 | 2013-03-17 | Power line abnormal electric leakage detection and remote control device |
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| CN203104124U true CN203104124U (en) | 2013-07-31 |
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| CN 201320119538 Expired - Fee Related CN203104124U (en) | 2013-03-17 | 2013-03-17 | Power line abnormal electric leakage detection and remote control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390533A (en) * | 2017-06-22 | 2017-11-24 | 上海斐讯数据通信技术有限公司 | A kind of Monitor for electricity use, system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390533A (en) * | 2017-06-22 | 2017-11-24 | 上海斐讯数据通信技术有限公司 | A kind of Monitor for electricity use, system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140317 |