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 PDF

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Publication number
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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CN
China
Prior art keywords
circuit
modules
nbiot
power management
indicator
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201820233165.7U
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Chinese (zh)
Inventor
郭东奇
林伯刚
关帅
罗家涛
刘莹
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Northern Energy Ltd By Share Ltd
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Northern Energy Ltd By Share Ltd
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Priority to CN201820233165.7U priority Critical patent/CN207851210U/en
Application granted granted Critical
Publication of CN207851210U publication Critical patent/CN207851210U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of indicator of monitoring power transmission distribution network failure
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.
CN201820233165.7U 2018-02-09 2018-02-09 A kind of indicator of monitoring power transmission distribution network failure Expired - Fee Related CN207851210U (en)

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

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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

Publications (1)

Publication Number Publication Date
CN207851210U true CN207851210U (en) 2018-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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