CN207851210U - A kind of indicator of monitoring power transmission distribution network failure - Google Patents
A kind of indicator of monitoring power transmission distribution network failure Download PDFInfo
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- CN207851210U CN207851210U CN201820233165.7U CN201820233165U CN207851210U CN 207851210 U CN207851210 U CN 207851210U CN 201820233165 U CN201820233165 U CN 201820233165U CN 207851210 U CN207851210 U CN 207851210U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000007726 management method Methods 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 238000013500 data storage Methods 0.000 claims abstract description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims description 8
- 230000001413 cellular effect Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A kind of indicator of monitoring power transmission distribution network failure, it is related to a kind of indicator of monitoring power failure, including CPU processing chips, data storage circuitry, NBIOT modules, 433 communication modules, electric power management circuit, signal acquisition circuit, host computer monitor system；CPU processing chips are connected with data storage circuitry, NBIOT modules, 433 communication modules, data storage circuitry, signal acquisition circuit, and CPU processing chips connect NBIOT modules and are connected with host computer monitoring system；Electric power management circuit includes current transformer, super capacitor, lithium battery, mos pipes, comparator, diode, power management chip, load switch original paper；Signal acquisition circuit amplifies integrating circuit and reference power supply composition, by the current signal of Rogowski coil gathering line road by Rogowski coil.The failure that power transmission cable occurs for the utility model indicator is monitored in real time and is recorded, and is alarmed by light mode, ensures the reliability service of system.
Description
Technical field
The utility model is related to a kind of indicators of monitoring power failure, more particularly to a kind of monitoring power transmission distribution
The indicator of network failure.
Background technology
With the construction of transmission and distribution networks, electrical power trans mission/distribution system has developed between power station and different terminal users load
Huge interconnecting electric power transmission network.In order to monitor each branch of distribution network, especially city and rural area as far as possible
Overhead power transmission line cable, quickly search and response line failure and that distribution network is restored to stable state in the shortest time is outstanding
To be important, traditional transient state recording type fault detector needs to collect the message that unit undertakes between collecting unit and main website and receives
And transmission, it is perfect with Physical Network infrastructure, it is badly in need of a kind of Novel fault indicator of high-performance low-power-consumption at present.
Invention content
The purpose of this utility model is to provide a kind of indicator of monitoring power transmission distribution network failure, this practicality is new
Type indicator uses faint energy collection, multiple power supplies management, the operational amplifier and CPU of super low-power consumption, ultra low quiescent current
Reference power supply and the modes such as MPPT maximum power point tracking reduce system power dissipation, reduce interference of the electromagnetostatic field to wireless telecommunications,
The failure that power transmission cable is occurred is monitored in real time and is recorded, and is alarmed by light mode, and ensure system can
By operation.
The purpose of this utility model is achieved through the following technical solutions：
A kind of indicator of monitoring power transmission distribution network failure, the fault detector includes CPU processing chips, number
System is monitored according to storage circuit, NBIOT modules, 433 communication modules, electric power management circuit, signal acquisition circuit, host computer；CPU
Processing chip is connected with data storage circuitry, NBIOT modules, 433 communication modules, data storage circuitry, signal acquisition circuit,
CPU processing chips connect NBIOT modules and are connected with host computer monitoring system；Electric power management circuit includes current transformer, super
Capacitance, lithium battery, mos pipes, comparator, diode, power management chip, load switch original paper；Signal acquisition circuit is by Roche
Coil amplifies integrating circuit and reference power supply composition, and Rogowski coil connection line amplifies integrating circuit pair, and the ad acquisitions of CPU are drawn
Foot is connected with electric power management circuit.
A kind of indicator of monitoring power transmission distribution network failure, the CPU processing chips and circuit are patrolled
It collects control and is attached between host computer monitoring system.
A kind of indicator of monitoring power transmission distribution network failure, the fault detector are logical using NBIOT
Module is interrogated, is that basic network is attached with monitor supervision platform with cellular mobile network.
The advantages of the utility model is with effect：
The failure that power transmission cable can occurs in the utility model fault detector is monitored in real time and is recorded, at it
It detects and fault message is directly sent to distribution main website by network when line fault, communication is avoided to be delayed, while reducing
The installation difficulty of fault detector under complex environment, and alarmed by light mode, using faint energy collection, Multi-path electricity
Source control, the operational amplifier and CPU of super low-power consumption, the reference power supply of ultra low quiescent current and MPPT maximum power point tracking etc.
Mode reduces system power dissipation, reduces interference of the electromagnetostatic field to wireless telecommunications, and the mode of multiple-way supply is combined to ensure system
Reliability service extends the service life of system.Fault detector provided by the utility model, core are CPU processing chips
433 communication modules of connection low-power carry out the time calibration between each fault detector, by signal acquisition circuit by cable
Earth-fault signal and short circuit fault signal collect CPU processing chips and analyzed, judgement occur earth fault or
Light warning is carried out after there is short trouble, failure and warning message, which are sent to host computer, by cellular mobile network monitors system
It is further analyzed.The information that staff can receive by Monitor Computer Control System judges whether power transmission cable occurs
Failure, the rapid time and location for finding line fault occur, and find out fault point.In addition the utility model is to CT by taking electricity,
Super capacitor, the mode that lithium battery multiple-way supply unit carries out power management carry out system power supply, are that the longtime running of system can
It is provided a strong guarantee by property.
1. the utility model can be collected the faint energy less than 80mv, conversion ratio is more than 90%.
2. the utility model measures electric current by Rogowski coil, reduce the interference of magnetic field on measuring precision.
3. the utility model takes electricity, the mode of super capacitor and backup battery multiple-way supply to ensure the length of system using CT
Phase stable operation.
4. the utility model can be managed power supply mode, the unstable shadow to system operation of power supply system is avoided
It rings.
5. the utility model uses NBIOT mechanicss of communication with host computer monitoring system, better reliability, communication is more stable,
Energy consumption is lower.
6. the utility model is not necessarily to collect transfer and distribution that unit carries out data, installation and equipment are greatly reduced
Cost.
7. the utility model modules have extremely low leakage current and quiescent current, power consumption is lower, uses battery powered
Service life is 10 years.
8. the utility model is lower with network communication fees and price using honeycomb movement, covering is wider, is conducive to remotely
The circuit monitoring in area and maintenance.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model flow chart；
Fig. 3 is the utility model collecting part circuit；
Fig. 4 is one of the utility model electric power management circuit；
Fig. 5 is the two of the utility model electric power management circuit.
Specific implementation mode
The utility model is described in detail in illustrated embodiment below in conjunction with the accompanying drawings.
The utility model can monitor earth fault and short trouble in transmission line of electricity, in working environment, this practicality
Novel to be monitored to circuit by signal acquisition circuit, 433 wireless module of timing wake-up is to indicating fault described on circuit
Device carries out time calibration, and recording is carried out according to the occurrence condition of earth fault and short trouble, and filtering file is passed through NBIOT moulds
Recorded wave file is sent to host computer monitoring system and is further analyzed by block, is waited for the feedback message of host computer, is judged whether
Light warning occurs, and make NBIOT modules enter sleep pattern to reduce system power dissipation, when system is communicated wirelessly by CPU
Processing chip controls charging behavior of the load switch stopping to super capacitor in electric power management circuit, and taken at regular intervals power supply
The information about power of circuit lithium battery and super capacitor is managed, low battery event occurs and is reported, to ensure the correct hair of message
It send and receives.
Fault detector includes：CPU processing chips, data storage circuitry, NBIOT modules, 433 communication modules, power supply pipe
It manages circuit, signal acquisition circuit, host computer and monitors system；CPU processing chips are led to data storage circuitry, NBIOT modules, 433
News module, data storage circuitry, signal acquisition circuit are connected, and CPU processing chips connect NBIOT modules and monitored with host computer
System is connected, and for data storage circuitry for storing the information and related data monitored, electric power management circuit is responsible for modules
Power supply and power information collection management, 433 modules be used for module between time correction and information communication, signal acquisition electricity
It is responsible for acquiring the electric current and electric field information on transmission line of electricity in road.Electric power management circuit includes current transformer, super capacitor, lithium electricity
The original papers such as pond, mos pipes, comparator, diode, power management chip, load switch form, by current transformer, super capacitor,
Lithium battery is powered, and mos pipes plus comparator and 4 concatenated diodes, which carry out releasing for electric current, prevents system power excessive,
Power management chip is collected the electric current on current transformer, is stored in super capacitor, when power transmission line no current passes through
It can be powered by super capacitor, by lithium battery power supply after the completion of super capacitor electric discharge, when there is wireless signal transmitting and receiving by CPU processing
Chip controls load switch can suspend the charging to super capacitor, the interference for avoiding power supply unstable to data transmit-receive, the method
Integrated level is high, and leakage current is excessive caused by can reducing the circuit built by discrete original paper, reduces system power dissipation.Signal acquisition circuit
By Rogowski coil, amplify integrating circuit and reference power supply composition, by the current signal of Rogowski coil gathering line road, then by amplifying
Integrating circuit is amplified reduction to signal, carries out analyzing processing by CPU processing chips, while being adopted by the ad of CPU acquisition pins
The electric power thus supplied for collecting electric power management circuit judges whether that low battery event occurs.CPU processing chips are responsible for patrolling for each section circuit
It collects control and carries out data processing between host computer monitoring system.Fault detector uses NBIOT communication modules, is moved with honeycomb
Dynamic net is basic network, is responsible for carrying out data exchange with monitor supervision platform.
Embodiment
The utility model includes CPU processing chips 1, data storage circuitry 2, NBIOT modules 3,433 communication modules 4, power supply
It manages circuit 5, signal acquisition circuit 6, host computer and monitors system 7.CPU processing chips 1 and data storage circuitry 2, NBIOT modules
3,433 communication modules 4, electric power management circuit 5, signal acquisition circuit 6 are connected, and data storage circuitry is believed for storage time
Breath, the storage of the data such as fault message.NBIOT modules 3 in the case where whole system is in no data interaction scenario in a dormant state
Power consumption is down to several uA, to reduce system power dissipation, is waken up by CPU processing chips 1 after signal acquisition circuit 6 collects fault message
NBIOT modules 3 send the wave file of fault message to host computer monitoring system 7, and local light warning is carried out after being connected to feedback
And enter dormant state, also periodically can wake up NBIOT modules by CPU processing chips 1 receives the instruction that host computer monitors system 7.
433 communication modules 4 are responsible for the time calibration between other fault detectors, by the counter inside CPU processing chips 1 with tool
Communication time is set according to the sampling period of sample circuit, ensures Acquisition Circuit polyphase waveform when acquiring circuit fault message
It is synchronous.Electric power management circuit 5 obtains DC voltage letter by the current signal of internal mutual inductor gathering line road by rectifier bridge
Number, it is collected by power management chip and is charged to super capacitor, at this time if load terminal voltage reaches 2.7V power supplies
Threshold value switches to collected voltage signal by power management chip and is powered, after charging complete system by super capacitor into
Row power supply, in the case where mutual inductor is not collected into enough electric currents and super capacitor has discharged completion, at this time by lithium battery
It is powered.Acquisition Circuit 6 collects the fault message on circuit by integrating amplification circuit by the Rogowski coil inside circuit, by
CPU processing chips 1 carry out analyzing processing, while being responsible for the confession of the super capacitor and lithium battery inside monitoring electric power management circuit 5
Electric situation occurs low battery situation and is recorded and report abnormality.
Claims (2)
1. a kind of indicator of monitoring power transmission distribution network failure, which is characterized in that the fault detector includes at CPU
Manage chip, data storage circuitry, NBIOT modules, 433 communication modules, electric power management circuit, signal acquisition circuit, host computer prison
Examining system；CPU processing chips and data storage circuitry, NBIOT modules, 433 communication modules, data storage circuitry, signal acquisition
Circuit is connected, and CPU processing chips connect NBIOT modules, and NBIOT modules are connected with host computer monitoring system；Power management electricity
Road includes current transformer, super capacitor, lithium battery, mos pipes, comparator, diode, power management chip, load switch original
Part；Signal acquisition circuit amplifies integrating circuit and reference power supply composition, Rogowski coil connection line amplification integral by Rogowski coil
The ad acquisition pins of circuit pair, CPU are connected with electric power management circuit.
2. a kind of indicator of monitoring power transmission distribution network failure according to claim 1, which is characterized in that described
Fault detector uses NBIOT communication modules, is that basic network is attached with monitor supervision platform with cellular mobile network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820233165.7U CN207851210U (en) | 2018-02-09 | 2018-02-09 | A kind of indicator of monitoring power transmission distribution network failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820233165.7U CN207851210U (en) | 2018-02-09 | 2018-02-09 | A kind of indicator of monitoring power transmission distribution network failure |
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| Publication Number | Publication Date |
|---|---|
| CN207851210U true CN207851210U (en) | 2018-09-11 |
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| CN201820233165.7U Expired - Fee Related CN207851210U (en) | 2018-02-09 | 2018-02-09 | A kind of indicator of monitoring power transmission distribution network failure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226715A (en) * | 2018-02-09 | 2018-06-29 | 北方节能股份有限公司 | A kind of indicator for monitoring power transmission distribution network failure |
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2018
- 2018-02-09 CN CN201820233165.7U patent/CN207851210U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226715A (en) * | 2018-02-09 | 2018-06-29 | 北方节能股份有限公司 | A kind of indicator for monitoring power transmission distribution network failure |
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Granted publication date: 20180911 |