CN201993434U - System for quickly positioning distribution network faults based on wireless sensor network - Google Patents

System for quickly positioning distribution network faults based on wireless sensor network Download PDF

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Publication number
CN201993434U
CN201993434U CN2010206736783U CN201020673678U CN201993434U CN 201993434 U CN201993434 U CN 201993434U CN 2010206736783 U CN2010206736783 U CN 2010206736783U CN 201020673678 U CN201020673678 U CN 201020673678U CN 201993434 U CN201993434 U CN 201993434U
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CN
China
Prior art keywords
distribution network
module
connect
data
main control
Prior art date
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Expired - Fee Related
Application number
CN2010206736783U
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Chinese (zh)
Inventor
左飞
魏建炜
何江涛
刘庭磊
鲁帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Electric Power Corporation Nanan Power Supply Bureau
State Grid Corp of China SGCC
Original Assignee
CHONGQING ELECTRIC POWER Corp NANAN POWER SUPPLY BUREAU
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Application filed by CHONGQING ELECTRIC POWER Corp NANAN POWER SUPPLY BUREAU filed Critical CHONGQING ELECTRIC POWER Corp NANAN POWER SUPPLY BUREAU
Priority to CN2010206736783U priority Critical patent/CN201993434U/en
Application granted granted Critical
Publication of CN201993434U publication Critical patent/CN201993434U/en
Anticipated expiration legal-status Critical
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    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location

Abstract

The utility model provides a system for quickly positioning distribution network faults based on a wireless sensor network, which comprises a front-end data acquisition device; the system further comprises a data receiving device, a data storage device and a display device; the front-end data acquisition device at least comprises digital fault indicators, wireless transceiver modules, a main control module, a communication module and a system power supply electrically connected with the digital fault indicators, the wireless transceiver modules, the main control module and the communication module respectively; the digital fault indicators are in one-to-one correspondence communication with the wireless transceiver modules; the main control module is communicated and connected with each wireless transceiver module and also communicated and connected with the communication module; the communication module is communicated and connected with the data receiving device; the data receiving device is communicated and connected with the data storage device; and the data storage device is communicated and connected with the display device. The provided system can be used for dynamically detecting the running state of the distribution network in real time.

Description

A kind of distribution network failure quick positioning system based on wireless sensor network
Technical field
The utility model relates to the sensing equipment technical field, particularly a kind of distribution network failure quick positioning system based on wireless sensor network.
Background technology
Power distribution network (as: power distribution network of 10KV) fault mainly comprises two aspects, i.e. short trouble and earth fault.
The short trouble indicator develops into today, and technology is relatively stable, but also reaches such accuracy of similar protective relaying device and degree of ripeness far away, and relatively distinct issues mainly contain at present:
(1), adopt line current mean value or peak value to do overcurrent sudden change criterion, when the cable line idle-loaded switching-on send, when perhaps the overhead transmission line reclosing send electricity, because of non-fault branch has started the short circuit criterion because of (weight) inrush phenomenon, and circuit does not in time detect the line-to-ground electric field, think line outage by mistake, cause malfunction.
(2), adopt overcurrent sudden change criterion, though the overcurrent definite value need not be set, fatal shortcoming: A is arranged also, when the two phase ground short circuit, because of electric current changes slowly, cause tripping; The overcurrent (for example 100A/0.3S) less than normal that B, rural power grids circuit transformer station set because of the current break quantity not sufficient, causes tripping;
(3), when line short, send electricity to short dot because of feedbacks such as the high capacity motor of non-fault branch or back, trouble spot, storage capacitors, because of not distinguishing the power frequency decay current, cause malfunction.
(4), for the fault detector of board turning display mode, when heavy current impact, also may have the problem of direct board turning of magnetic field induction or involution at once, cause not normally involution after the board turning and board turning.
(5), in addition under various high low temperature, strong intensive ultraviolet and salt mist environment, the performance of equipment own also is affected, add backup battery and select improperly,, cause product actual life well below designed life because of power consumption, leakage current, battery passivation and environment temperature problem; Mounting structure design imperfection also can cause great negative effect to the operation of equipment.
And the technical development history of earth-fault indicator is very short.Adopt the fault detector of traditional short trouble detection technique, more well-done product action accuracy has only about 65% (short troubles).And the singlephase earth fault indicator of small current neutral grounding system will reach the action accuracy of short trouble indicator, have got long long way to go, this is because the earth fault of small current neutral grounding system has only physical model in theoretical circles, and not having the mathematical model determined, the mathematical model of each area, each transformer station, every circuit, every branch, each earth point is all different.
Owing to above reason, need a kind of safe and reliable at present, can be accurately, distribution network failure position finding and detection method timely, and on-the-spot detection signal is sent to monitoring center, and be distributed on the electric system internal security and produce on the network, make things convenient for the relevant personnel to monitor in real time, add up, analyze like this.That this programme utilizes is ripe, low-cost, the wireless sensor network technology of low-power consumption, cooperates the GPRS technology, when keeping system reliability, has guaranteed the advance of system.Each radio detection module is flexible for installation, need not the wiring of All other routes, so also just safer, reliable.In addition, the data of a plurality of measurement points are connected into network after, be convenient to unified management, realize networking, the robotization of management.
The utility model content
The utility model provide a kind of energy in real time, the distribution network failure quick positioning system based on wireless sensor network of detection of dynamic power distribution network running status.
To achieve these goals, the utility model provides following technical scheme:
A kind of distribution network failure quick positioning system based on wireless sensor network, it comprises: be arranged on the front end data acquisition equipment on the power distribution network circuit, and also comprise the data sink that is arranged on Surveillance center, data storage and display device, described front end data acquisition equipment comprises the digital fault indicator at least, radio receiving transmitting module, main control module, communication module and with described digital fault indicator, radio receiving transmitting module, main control module, the system power supply that communication module is electrically connected, a described digital fault indicator and a described radio receiving transmitting module communicate to connect, described main control module and each described radio receiving transmitting module communicate to connect, described main control module and described communication module communicate to connect, described communication module and described data sink communicate to connect, described data sink communicates to connect in described data storage device, and described data storage device communicates to connect in described display device.
Preferably, on every of described threephase cable cable a fault detector and a radio receiving transmitting module are installed respectively.
Preferably, described system power supply is a solar cell.
Preferably, described system power supply also comprises accumulator, and described accumulator is electrically connected described solar cell.
By implementing above technical scheme, have following technique effect: the system that the utility model provides can be real-time, detection of dynamic power distribution network running status, for distribution network failures such as single-phase earthing and line to line fault, in case take place, promptly can in time receive fault data by the local sensor network, and converge to the device that is provided with GPRS (global system for mobile communications) Network Access Point, and pass back at once on the electric system internal network, and can with its SCADA (Supervisory Control And Data Acquisition, data acquisition and supervision control) system interface, with the trouble spot, fault datas etc. are reacted in the production data, simultaneously, can be according to setting, (the ground connection of will reporting to the police, short circuits etc.) information directly sends to the operator on duty place that power distribution network is safeguarded, reminds its timely processing.
Description of drawings
The structural representation that Fig. 1 provides for the utility model embodiment based on the distribution network failure quick positioning system of wireless sensor network.
Embodiment
In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
Present embodiment provides a kind of distribution network failure quick positioning system based on wireless sensor network, it comprises the front end data acquisition equipment that is arranged on the power distribution network circuit, and also comprise the data sink that is arranged on Surveillance center, data storage and display device, described front end data acquisition equipment comprises the digital fault indicator at least, radio receiving transmitting module, main control module, communication module (among Fig. 1 be: the GPRS module) and with described digital fault indicator, radio receiving transmitting module, main control module, the system power supply that communication module is electrically connected, a described digital fault indicator and a described radio receiving transmitting module communicate to connect, described main control module and each described radio receiving transmitting module communicate to connect, in the utility model, described main control module communicates to connect by wireless sensor network and each described radio receiving transmitting module, in other embodiments, also can communicate to connect by wired mode.Each wireless module addresses separately.Preferably, the digital fault indicator adopts the digital electric current transformer, is used for detecting the electric current of 10KV power distribution network circuit,
Described main control module and described communication module communicate to connect, described communication module and described data sink communicate to connect, in the utility model, described communication module communicates to connect by GPRS network and described data sink, in other embodiments, also can communicate to connect or other networks communicate connection by wired mode.
Described data sink communicates to connect in described data storage device, and described data storage device communicates to connect in described display device.
Main control module is regularly communicated by letter with each digital fault indicator by radio receiving transmitting module, and with the data obtained by coupled communication module, utilize the mobile network, data are sent it back Surveillance center; System power supply provides electric energy to the entire front end data acquisition equipment; Surveillance center is according to network configuration, select to use the GPRS module, or wired ethernet, according to the agreement of prior agreement, the Data Receiving of far-end to local data sink, and is got up data storage with data storage device, be distributed on the electric system internal network by local Web (network) server simultaneously, show by display device, simultaneously, provide interface to connect the SCADA system.And the graphical detection software in operation Windows (operating window), client just can directly be passed through the direct access server of IE browser, inquire about the fault status information etc. of the corresponding power distribution network that detects (as: 10KV power distribution network).
Preferably, in order to detect every cable, a fault detector and a radio receiving transmitting module are installed respectively on the every cable of described threephase cable.
In the preferred embodiment, for convenience of the power supply and the energy savings of system.Described system power supply is a solar cell.Solar cell provides the electric current of 12V voltage and 12Ah, and disposes the accumulator that matches with solar cell, and described accumulator is electrically connected described solar cell.So that provide enough electric energy for system at rainy weather.
1), the system that provides of present embodiment has very strong real-time, practicality, by timing acquiring new data more, the real-time of Guarantee Status information; By preestablishing measures such as threshold values and on-line parameter adjusting, guarantee the measured point electric current in case surpass empirical value, just can send alerting signal in time to remind the relevant personnel to take measures the practicality height.
2), the system that provides of present embodiment selects the digital fault indicator for use, make it can finish " four is distant " function, i.e. remote signalling (short circuit, ground connection, board turning), remote measurement (measuring 4 electric current+1 voltages+1 temperature), remote control (board turning, involution), remote regulating (online adjustment parameter).Can also monitor sine-wave current, real time data such as the piezoelectric voltage of asking for, cell voltage.
3), the system high efficiency that provides of present embodiment is energy-conservation, install each part and all carried out meticulous efficient design, energy distribution is reasonable, makes device power consumption extremely low, adopt the classical timely Rouser of piezoelectric sensor technology, guarantee real-time, the reliability of image data.
4), the system that provides of present embodiment uses flexibly, safety, the user can be provided with parameter flexibly, easily according to oneself demand, no matter be product, or instrument and maintenance thereof, safety, reliably all.
More than a kind of distribution network failure quick positioning system that the utility model embodiment is provided based on wireless sensor network be described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, part in specific embodiments and applications all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims (4)

1. distribution network failure quick positioning system based on wireless sensor network, it is characterized in that, comprise: be arranged on the front end data acquisition equipment on the power distribution network circuit, and also comprise the data sink that is arranged on Surveillance center, data storage and display device, described front end data acquisition equipment comprises the digital fault indicator at least, radio receiving transmitting module, main control module, communication module and with described digital fault indicator, radio receiving transmitting module, main control module, the system power supply that communication module is electrically connected, a described digital fault indicator and a described radio receiving transmitting module communicate to connect, described main control module and each described radio receiving transmitting module communicate to connect, described main control module and described communication module communicate to connect, described communication module and described data sink communicate to connect, described data sink communicates to connect in described data storage device, and described data storage device communicates to connect in described display device.
2. as the distribution network failure quick positioning system of claim 1, it is characterized in that, a fault detector and a radio receiving transmitting module are installed respectively on the every cable of described threephase cable based on wireless sensor network.
3. as the distribution network failure quick positioning system of claim 1, it is characterized in that described system power supply is a solar cell based on wireless sensor network.
4. as the distribution network failure quick positioning system of claim 3 based on wireless sensor network, it is characterized in that described system power supply also comprises accumulator, described accumulator is electrically connected described solar cell.
CN2010206736783U 2010-12-20 2010-12-20 System for quickly positioning distribution network faults based on wireless sensor network Expired - Fee Related CN201993434U (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102749554A (en) * 2012-06-19 2012-10-24 张忠华 Electric power circuit fault detecting system
CN102937680A (en) * 2012-11-08 2013-02-20 辽宁省电力有限公司阜新供电公司 Intelligent distribution network fault monitoring terminal
CN103389441A (en) * 2013-07-31 2013-11-13 胡波 Fault detection and positioning system for power line
CN105093061A (en) * 2015-06-11 2015-11-25 江苏安方电力科技有限公司 Power distribution network line fault on-line monitoring and alarming system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102749554A (en) * 2012-06-19 2012-10-24 张忠华 Electric power circuit fault detecting system
CN102937680A (en) * 2012-11-08 2013-02-20 辽宁省电力有限公司阜新供电公司 Intelligent distribution network fault monitoring terminal
CN103389441A (en) * 2013-07-31 2013-11-13 胡波 Fault detection and positioning system for power line
CN103389441B (en) * 2013-07-31 2016-06-22 胡波 The Fault Detection And Location System of power circuit
CN105093061A (en) * 2015-06-11 2015-11-25 江苏安方电力科技有限公司 Power distribution network line fault on-line monitoring and alarming system

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GR01 Patent grant
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: STATE GRID CORPORATION OF CHINA

Effective date: 20121126

TR01 Transfer of patent right

Effective date of registration: 20121126

Address after: 400060 South Road, Nan'an District, Chongqing, No. 23

Patentee after: Chongqing Electric Power Corporation Nanan Power Supply Bureau

Patentee after: State Grid Corporation of China

Address before: 400060 South Road, Nan'an District, Chongqing, No. 23

Patentee before: Chongqing Electric Power Corporation Nanan Power Supply Bureau

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110928

Termination date: 20171220

CF01 Termination of patent right due to non-payment of annual fee