CN107979071A - Remote monitoring of power transmission line system - Google Patents
Remote monitoring of power transmission line system Download PDFInfo
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- CN107979071A CN107979071A CN201711274071.0A CN201711274071A CN107979071A CN 107979071 A CN107979071 A CN 107979071A CN 201711274071 A CN201711274071 A CN 201711274071A CN 107979071 A CN107979071 A CN 107979071A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 230000005611 electricity Effects 0.000 claims abstract description 38
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000010295 mobile communication Methods 0.000 claims description 19
- 230000001052 transient effect Effects 0.000 claims description 16
- 239000003381 stabilizer Substances 0.000 claims description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052744 lithium Inorganic materials 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 claims description 3
- 101150105073 SCR1 gene Proteins 0.000 claims description 3
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 6
- 238000012790 confirmation Methods 0.000 abstract description 4
- 230000003750 conditioning effect Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- 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
- H02H7/04—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 for transformers
- H02H7/042—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 for transformers for current transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/043—Protection of over-voltage protection device by short-circuiting
-
- H02J13/0006—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
Abstract
A kind of remote monitoring of power transmission line system provided by the invention, including Current Transmit 1, rectification circuit REC, voltage stable circuit, power circuit, detection circuit, central processing circuit, battery module, LED drive circuit, the first LED light group and the second LED light group；Further include for detecting Current Transformer Secondary side open-circuit condition and performing the protection circuit of protection, the protection of the protection circuit performs control terminal and is connected with central processing circuit；Accurate detection can be made to the electriferous state of transmission line of electricity, and corresponding instruction can be made according to electriferous state and can be alerted in time, so as to effectively improve the efficiency of accident point confirmation, O＆M maintenance purpose is strong, improve overhaul efficiency, and human cost can be reduced, avoid the security risk present in line walking and maintenance process；Moreover, whole system has self detection and defencive function, ensure that whole system can continually and steadily be run.
Description
Technical field
The present invention relates to a kind of energy monitoring apparatus, more particularly to a kind of remote monitoring of power transmission line system.
Background technology
Transmission line of electricity is one of equipment as important in power grid, and transmission line of electricity is subject to the shadow of environment in the process of running
, in the prior art, is there is above-mentioned failure for transmission line of electricity in situations such as ringing, short circuit, current-jump and open circuit easily occurs
Afterwards, commonly rely on staff and carry out line walking inspection, this mode causes efficiency very low, and human cost is high, right
In the even more inconvenience of mountain area place, it is difficult to accomplish minute inspection, appearance is prone to have accidents；What is more important, is determining transmission of electricity
After line fault, if cannot accurately determine whether transmission line of electricity current state is powered in maintenance, it will staff is made
Into serious security risk, or even the accident got an electric shock and died.
It is, therefore, desirable to provide a kind of monitoring system, can make the electriferous state of transmission line of electricity accurate detection, and energy
It is enough that corresponding instruction is made according to electriferous state and can be alerted in time, so as to effectively improve the efficiency of accident point confirmation,
O＆M maintenance purpose is strong, improves overhaul efficiency, and can reduce human cost, avoids depositing in line walking and maintenance process
Security risk；Moreover, whole system has self detection and defencive function, ensure that whole system can be transported continually and steadily
OK.
The content of the invention
In view of this, can be to transmission line of electricity the object of the present invention is to provide a kind of remote monitoring of power transmission line system
Electriferous state makes accurate detection, and corresponding instruction can be made according to electriferous state and can be alerted in time, so as to
Enough effectively improve accident point confirmation efficiency, O＆M maintenance purpose it is strong, improve overhaul efficiency, and can reduce manpower into
This, is avoided the security risk present in line walking and maintenance process；Moreover, whole system has self detection and protection work(
Can, ensure that whole system can continually and steadily be run.
A kind of remote monitoring of power transmission line system provided by the invention, including Current Transmit 1, rectification circuit REC, electricity
Press stabilizing circuit, power circuit, detection circuit, central processing circuit, battery module, LED drive circuit, the first LED light group
With the second LED light group；
The Current Transmit 1 is arranged at transmission line of electricity and its output terminal is connected with the input terminal of rectification circuit REC, institute
The input terminal of the output terminal and voltage stable circuit of stating rectification circuit REC connects, output terminal and the electricity of the voltage stable circuit
The input terminal connection of source circuit, the power circuit export 5V direct currents and be supplied to central processing circuit, mobile communication module,
LED drive circuit and battery module, the detection circuit are arranged at the output terminal of voltage stable circuit, detection circuit it is defeated
The signal input part of outlet and central processing circuit connects, the charging input end of the battery module and the output of power circuit
End connection, power supply output terminal and central processing circuit, LED drive circuit and the mobile communication module of the battery module
Power end connects, and the output terminal of LED drive circuit is connected with the first LED light group and the second LED light group；The central processing circuit
It is connected with mobile communication module communication connection and central processing circuit by mobile communication module with upper main-machine communication；
Further include for detecting Current Transformer Secondary side open-circuit condition and performing the protection circuit of protection, the protection electricity
The protection on road performs control terminal and is connected with central processing circuit.
Further, the voltage stable circuit includes resistance R1, Zener diode D1 and amplifier U1；
The in-phase end of the amplifier U1 is connected with the output terminal of rectification circuit REC, and the in-phase end of amplifier U1 passes through resistance R1
Ground connection, the anode of the in-phase end of amplifier U1 also with Zener diode D1 are connected, and the plus earth of Zener diode, amplifier U1's is anti-
Phase end is directly connected to its output terminal, and the output terminal of amplifier U1 is connected with power circuit input terminal.
Further, it is LM2596 cores that the power circuit, which includes power supply chip U2 and voltage-stabiliser tube D2, the power supply chip U2,
Piece, the input terminal of the power supply chip U2 are connected with the output terminal of amplifier U1, the input terminal of the power supply chip U2 also with voltage stabilizing
The anode connection of pipe D2, the plus earth of voltage-stabiliser tube D2, the output terminal output 5V direct currents of power supply chip U2.
Further, the detection circuit includes resistance R2 and adjustable resistance R3；One end of the resistance R2 is as detection electricity
The input terminal on road is connected to the output terminal of amplifier U1, and the other end of resistance R2 is grounded by adjustable resistance R3, resistance R2 and adjustable
Points of common connection between resistance R3 exports characterization electric transmission line hot-line as the output terminal of detection circuit to central processing circuit
Whether detection signal.
Further, the protection circuit includes transient diode TVS1, resistance R4, diode D4, Zener diode D5, electricity
Hinder R6, amplifier U3, resistance R7, resistance R8, triode Q1, triode Q2, relay J1 and controllable silicon SCR 1；
One end of the transient diode TVS1 is connected with one end of the secondary winding of Current Transmit 1, two pole of transient state
The other end of pipe TVS1 is grounded by resistance R4, and the cathode of diode D4 is connected between resistance R4 and transient diode TVS1
Points of common connection, the anode of diode are connected to the in-phase end of amplifier U3, the anode connection of Zener diode D5 by resistance R5
In the cathode of diode D4, the plus earth of Zener diode D5, the output of the end of oppisite phase of amplifier U3 directly with amplifier U3 is connected,
The output terminal of amplifier U3 is connected to the base stage of triode Q1 by resistance R6, and the emitter of triode Q1 is grounded, triode Q1's
Collector is grounded 5V power supplys by resistance R7, and the control pole of the collector of triode Q1 also with controllable silicon SCR 1 is connected, silicon-controlled
The anode of SCR1 by the normally closed switch K1 of relay J1 and the secondary winding of Current Transmit 1 and transient diode TVS1 it
Between points of common connection connect, coil one end of relay J1 ground connection, the other end is connected with the emitter of triode Q2, triode Q2
Collector 5V power supplys are connect by resistance R8, the base stage of triode Q2 performs control terminal and centre as the protection of protection circuit
Manage circuit connection.
Further, the lithium battery module includes lithium battery, on-off circuit and is carried out for the discharge and recharge to aluminum cell
The battery management circuit of management；The charging input end of the battery management circuit and the output terminal of power circuit connect, cell tube
Reason circuit is connected with lithium battery, and the power supply output terminal of the battery management circuit passes through on-off circuit and central processing circuit, LED
The power end of drive circuit and mobile communication module connects.
Further, the on-off circuit is the normally closed DC relays of 12V, and the control power end of the DC relay connects
Points of common connection between voltage-stabiliser tube D2 and the input terminal of power supply chip.
Beneficial effects of the present invention：By means of the invention it is possible to accurate detection is made to the electriferous state of transmission line of electricity, and
Corresponding instruction can be made according to electriferous state and can be alerted in time, so as to effectively improve the effect of accident point confirmation
Rate, O＆M maintenance purpose is strong, improves overhaul efficiency, and can reduce human cost, avoids in line walking and maintenance process
Present in security risk；Moreover, whole system has self detection and defencive function, ensure that whole system can be continual and steady
Operation.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the principle of the present invention block diagram.
Fig. 2 is voltage stable circuit, detection circuit and the power circuit principle figure of the present invention.
Fig. 3 is the drive circuit figure of relay J1.
Embodiment
Further description is made to the present invention below in conjunction with Figure of description：
A kind of remote monitoring of power transmission line system provided by the invention, including Current Transmit 1, rectification circuit REC, electricity
Press stabilizing circuit, power circuit, detection circuit, central processing circuit, battery module, LED drive circuit, the first LED light group
With the second LED light group；
The Current Transmit 1 is arranged at transmission line of electricity and its output terminal is connected with the input terminal of rectification circuit REC, institute
The input terminal of the output terminal and voltage stable circuit of stating rectification circuit REC connects, output terminal and the electricity of the voltage stable circuit
The input terminal connection of source circuit, the power circuit export 5V direct currents and be supplied to central processing circuit, mobile communication module,
LED drive circuit and battery module, the detection circuit are arranged at the output terminal of voltage stable circuit, detection circuit it is defeated
The signal input part of outlet and central processing circuit connects, the charging input end of the battery module and the output of power circuit
End connection, power supply output terminal and central processing circuit, LED drive circuit and the mobile communication module of the battery module
Power end connects, and the output terminal of LED drive circuit is connected with the first LED light group and the second LED light group；The central processing circuit
It is connected with mobile communication module communication connection and central processing circuit by mobile communication module with upper main-machine communication；
Further include for detecting Current Transformer Secondary side open-circuit condition and performing the protection circuit of protection, the protection electricity
The protection on road performs control terminal and is connected with central processing circuit, by means of the invention it is possible to be made to the electriferous state of transmission line of electricity
Accurate detection, and corresponding instruction can be made according to electriferous state and can be alerted in time, so as to effectively improve thing
Therefore the efficiency that point confirms, O＆M maintenance purpose is strong, improves overhaul efficiency, and can reduce human cost, avoids in line walking
And security risk present in maintenance process；Moreover, whole system has self detection and defencive function, ensure whole system
Can continually and steadily it run, wherein, central processing circuit uses existing microcontroller, for example ATM series is clicked, 89C51 series
Microcontroller etc., can be by directly obtaining in market purchasing；Mobile communication module is using existing GPRS module, 4G modules etc..
In the present embodiment, the voltage stable circuit includes resistance R1, Zener diode D1 and amplifier U1；
The in-phase end of the amplifier U1 is connected with the output terminal of rectification circuit REC, and the in-phase end of amplifier U1 passes through resistance R1
Ground connection, the anode of the in-phase end of amplifier U1 also with Zener diode D1 are connected, and the plus earth of Zener diode, amplifier U1's is anti-
Phase end is directly connected to its output terminal, and the output terminal of amplifier U1 is connected with power circuit input terminal, wherein, resistance R1 is used for electricity
Stream signal is converted into voltage signal, and Zener diode D1 is used to protect subsequent conditioning circuit, and amplifier U1 forms voltage follower,
For stablizing to the voltage signal of input, and buffer action is played, good protection can be formed to subsequent conditioning circuit.
In the present embodiment, the power circuit includes power supply chip U2 and voltage-stabiliser tube D2, the power supply chip U2 are
LM2596 chips, the input terminal of the power supply chip U2 are connected with the output terminal of amplifier U1, the input terminal of the power supply chip U2
Anode also with voltage-stabiliser tube D2 is connected, the plus earth of voltage-stabiliser tube D2, and the output terminal output 5V direct currents of power supply chip U2, such as scheme
Shown in 2, power supply chip U2 further includes peripheral circuit, i.e. inductance L1, capacitance C1 and voltage-stabiliser tube D3 in Fig. 2, wherein, voltage-stabiliser tube
D2 is using IN4742 voltage-stabiliser tubes and in 5V and the voltage signal stabilization that amplifier U1 is exported to be supplied to power supply chip U2；Pass through
This structure, can export stable 5V direct currents.
The protection circuit includes transient diode TVS1, resistance R4, diode D4, Zener diode D5, resistance R6, fortune
Put U3, resistance R7, resistance R8, triode Q1, triode Q2, relay J1 and controllable silicon SCR 1；
One end of the transient diode TVS1 is connected with one end of the secondary winding of Current Transmit 1, two pole of transient state
The other end of pipe TVS1 is grounded by resistance R4, and the cathode of diode D4 is connected between resistance R4 and transient diode TVS1
Points of common connection, the anode of diode are connected to the in-phase end of amplifier U3, the anode connection of Zener diode D5 by resistance R5
In the cathode of diode D4, the plus earth of Zener diode D5, the output of the end of oppisite phase of amplifier U3 directly with amplifier U3 is connected,
The output terminal of amplifier U3 is connected to the base stage of triode Q1 by resistance R6, and the emitter of triode Q1 is grounded, triode Q1's
Collector is grounded 5V power supplys by resistance R7, and the control pole of the collector of triode Q1 also with controllable silicon SCR 1 is connected, silicon-controlled
The anode of SCR1 by the normally closed switch K1 of relay J1 and the secondary winding of Current Transmit 1 and transient diode TVS1 it
Between points of common connection connect, coil one end of relay J1 ground connection, the other end is connected with the emitter of triode Q2, triode Q2
Collector 5V power supplys are connect by resistance R8, the base stage of triode Q2 performs control terminal and centre as the protection of protection circuit
Circuit connection is managed, current transformer when secondary side is opened a way, then can cause secondary side sense as a kind of electromagnetic induction device
High voltage should be gone out, so that the safety of subsequent conditioning circuit can be seriously affected；After Current Transformer Secondary side is opened a way, transient state
Diode TVS1 is turned on, and at this time, voltage signal is formed on resistance R4, and is input to amplifier U3 by resistance R5, due to amplifier
The structure of U3 is the structure of a voltage follower, and voltage can be stablized, and due to its high input impedance charcteristic, energy
Enough so that the subsequent conditioning circuit of amplifier U3 is isolated, so that protection is formed, and also Zener diode D5 is used to protect amplifier U3, amplifier
After the voltage of U3 outputs is by resistance R6, control triode Q1 conducting, controllable silicon SCR 1 is triggered conducting, at this time, Current Mutual Inductance
Device CT1 is short-circuited, so as to realize good protection to subsequent conditioning circuit, when needing to release short-circuit protection state, then passes through centre
Circuit is managed to triode Q2 output control signals, triode Q2 conductings, the normally closed switch K1 of relay J1 is disconnected, so as to release short
Road is protected, and the power supply of relay J1 is provided by lithium battery module.
In the present embodiment, the detection circuit includes resistance R2 and adjustable resistance R3；One end of the resistance R2 is as inspection
The input terminal of slowdown monitoring circuit is connected to the output terminal of amplifier U1, and the other end of resistance R2 is grounded by adjustable resistance R3, resistance R2 and
Points of common connection between adjustable resistance R3 exports characterization transmission line of electricity as the output terminal of detection circuit to central processing circuit
Detection signal whether powered, wherein, adjustable resistance R3 can use slide rheostat, resistance box or digital regulation resistance etc..
In the present embodiment, the lithium battery module includes lithium battery, on-off circuit and for the discharge and recharge to aluminum cell
The battery management circuit being managed；The charging input end of the battery management circuit and the output terminal of power circuit connect, electricity
Pond management circuit is connected with lithium battery, and the power supply output terminal of the battery management circuit passes through on-off circuit and central processing electricity
The power end connection on road, LED drive circuit and mobile communication module, wherein；Wherein, the on-off circuit is normally closed straight for 12V
Current relay, the control power end of the DC relay are connected to public between voltage-stabiliser tube D2 and the input terminal of power supply chip
Tie point, that is to say, that when whole system normal operation, on-off circuit is off-state, once Current Transmit 1 is because certainly
Barrier or transmission line of electricity die when powering off, then on-off circuit closes automatically, is powered by lithium battery；By said structure, when
Transmission line of electricity can provide work electricity consumption when powering off to central processing circuit, LED drive circuit and mobile communication module；Its
In, battery management circuit uses existing lithium battery managing chip.
Operation principle of the invention further explained below：
When transmission line of electricity has electricity, current transformer carries out taking electricity, the full-bridge type rectified current being then made up of diode
Road REC carries out rectification, after being handled by voltage stable circuit, by the 5V direct currents that power module output is stable, detection electricity
Road is used to detect transmission line of electricity current flow variable condition, and central processing circuit is formed after the status signal of reception is handled
Data reporting, is then transmitted to upper host by mobile communication module；First LED light group and the second LED light group use two groups
Different-colour, wherein, the first LED light group forms for red LED lamp, and the second LED light group is formed using yellow LED lamp, works as transmission of electricity
When circuit is powered, the first LED light group is bright, represents current electric transmission line hot-line, if saltus step, center occur for transmission line of electricity electric current
Processing circuit controls LED drive circuit acts, and makes two groups of LED light keep being always on state；The normally closed DC relays of 5V are at this time
Off-state.
After transmission line of electricity powers off, then Current Transmit 1 does not export, at this time relay electric-loss, and relay is again extensive
Reclosing conjunction state, is powered by lithium battery to central processing circuit, mobile communication module and LED drive circuit, and is examined
Slowdown monitoring circuit is input to central processing circuit also without signal, then central processing circuit passes through current status information mobile logical
Letter module is sent to upper host；And the alternating bright light such as two groups of LED of central processing circuit control LED drive circuit driving, two
A LED light forms flicker state, for indicating failure；Wherein, LED lamp drive circuit is existing circuit, equally can be direct
Obtained from market purchasing.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, can be to the skill of the present invention
Art scheme technical scheme is modified or replaced equivalently, without departing from the objective and scope of technical solution of the present invention, it should all cover at this
Among the right of invention.
Claims (7)
- A kind of 1. remote monitoring of power transmission line system, it is characterised in that：Including Current Transmit 1, rectification circuit REC, voltage Stabilizing circuit, power circuit, detection circuit, central processing circuit, battery module, LED drive circuit, the first LED light group and Second LED light group；The Current Transmit 1 is arranged at transmission line of electricity and its output terminal is connected with the input terminal of rectification circuit REC, described whole The output terminal of current circuit REC and the input terminal of voltage stable circuit connect, output terminal and the power supply electricity of the voltage stable circuit The input terminal connection on road, the power circuit export 5V direct currents and are supplied to central processing circuit, mobile communication module, LED Drive circuit and battery module, the detection circuit are arranged at the output terminal of voltage stable circuit, the output of detection circuit End is connected with the signal input part of central processing circuit, the charging input end of the battery module and the output terminal of power circuit Connection, the electricity of the power supply output terminal and central processing circuit, LED drive circuit and mobile communication module of the battery module Source connects, and the output terminal of LED drive circuit is connected with the first LED light group and the second LED light group；The central processing circuit with Mobile communication module communicates to connect and central processing circuit is connected by mobile communication module with upper main-machine communication；Further include for detecting Current Transformer Secondary side open-circuit condition and performing the protection circuit of protection, the protection circuit Protection performs control terminal and is connected with central processing circuit.
- 2. remote monitoring of power transmission line system according to claim 1, it is characterised in that：The voltage stable circuit includes Resistance R1, Zener diode D1 and amplifier U1；The in-phase end of the amplifier U1 is connected with the output terminal of rectification circuit REC, and the in-phase end of amplifier U1 is grounded by resistance R1, Anode of the in-phase end of amplifier U1 also with Zener diode D1 is connected, the plus earth of Zener diode, the end of oppisite phase of amplifier U1 It is directly connected to its output terminal, the output terminal of amplifier U1 is connected with power circuit input terminal.
- 3. remote monitoring of power transmission line system according to claim 2, it is characterised in that：The power circuit includes power supply Chip U2 and voltage-stabiliser tube D2, the power supply chip U2 are LM2596 chips, and the input terminal of the power supply chip U2 is with amplifier U1's Output terminal connects, and the anode of the input terminal of the power supply chip U2 also with voltage-stabiliser tube D2 be connected, and the plus earth of voltage-stabiliser tube D2 is electric The output terminal output 5V direct currents of source chip U2, the points of common connection between the anode of voltage-stabiliser tube D2 and the input terminal of power circuit Export 5V direct currents.
- 4. remote monitoring of power transmission line system according to claim 2, it is characterised in that：The detection circuit includes resistance R2 and adjustable resistance R3；One end of the resistance R2 is connected to the output terminal of amplifier U1, resistance as the input terminal of detection circuit The other end of R2 is grounded by adjustable resistance R3, and the points of common connection between resistance R2 and adjustable resistance R3 is as detection circuit Output terminal exports detection signal whether characterizing electric transmission line hot-line to central processing circuit.
- 5. remote monitoring of power transmission line system according to claim 1, it is characterised in that：The protection circuit includes transient state Diode TVS1, resistance R4, diode D4, Zener diode D5, resistance R6, amplifier U3, resistance R7, resistance R8, triode Q1, Triode Q2, relay J1 and controllable silicon SCR 1；One end of the transient diode TVS1 is connected with one end of the secondary winding of Current Transmit 1, transient diode The other end of TVS1 is grounded by resistance R4, and the cathode of diode D4 is connected to the public affairs between resistance R4 and transient diode TVS1 Tie point, the anode of diode are connected to the in-phase end of amplifier U3 by resistance R5 altogether, and the anode of Zener diode D5 is connected to The cathode of diode D4, the plus earth of Zener diode D5, the output of the end of oppisite phase of amplifier U3 directly with amplifier U3 are connected, transport The output terminal for putting U3 is connected to the base stage of triode Q1, the emitter ground connection of triode Q1, the collection of triode Q1 by resistance R6 Electrode is grounded 5V power supplys by resistance R7, and the control pole of the collector of triode Q1 also with controllable silicon SCR 1 is connected, silicon-controlled The anode of SCR1 by the normally closed switch K1 of relay J1 and the secondary winding of Current Transmit 1 and transient diode TVS1 it Between points of common connection connect, coil one end of relay J1 ground connection, the other end is connected with the emitter of triode Q2, triode Q2 Collector 5V power supplys are connect by resistance R8, the base stage of triode Q2 performs control terminal and centre as the protection of protection circuit Manage circuit connection.
- 6. remote monitoring of power transmission line system according to claim 3, it is characterised in that：The lithium battery module includes lithium Battery, on-off circuit and the battery management circuit being managed for the discharge and recharge to aluminum cell；The battery management circuit Charging input end and the output terminal of power circuit connect, battery management circuit is connected with lithium battery, the battery management circuit Power supply output terminal pass through the power end of on-off circuit and central processing circuit, LED drive circuit and mobile communication module and connect Connect.
- 7. remote monitoring of power transmission line system according to claim 6, it is characterised in that：The on-off circuit is normal for 12V DC relay is closed, the control power end of the DC relay is connected between voltage-stabiliser tube D2 and the input terminal of power supply chip Points of common connection.
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| CN201711274071.0A CN107979071A (en) | 2017-12-06 | 2017-12-06 | Remote monitoring of power transmission line system |
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| CN201711274071.0A CN107979071A (en) | 2017-12-06 | 2017-12-06 | Remote monitoring of power transmission line system |
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| CN201711274071.0A Pending CN107979071A (en) | 2017-12-06 | 2017-12-06 | Remote monitoring of power transmission line system |
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| CN110672909A (en) * | 2019-10-31 | 2020-01-10 | 国家电网有限公司 | OPGW (optical fiber composite overhead ground wire) line live indication power-off prompting system based on induction power taking |
| CN110988575A (en) * | 2019-12-30 | 2020-04-10 | 国家电网有限公司 | Electric power terminal electric quantity acquisition warning system |
| CN112865027A (en) * | 2020-12-31 | 2021-05-28 | 国家电网有限公司 | Direct current power supply system for power monitoring |
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Application publication date: 20180501 |