CN105915398A - Rapid fault detection and power recovery system based on rural power network, and concentrator detection method thereof - Google Patents
Rapid fault detection and power recovery system based on rural power network, and concentrator detection method thereof Download PDFInfo
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- CN105915398A CN105915398A CN201610465628.8A CN201610465628A CN105915398A CN 105915398 A CN105915398 A CN 105915398A CN 201610465628 A CN201610465628 A CN 201610465628A CN 105915398 A CN105915398 A CN 105915398A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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Abstract
The invention relates to a rapid fault detection and power recovery system based on a rural power network, and a concentrator detection method thereof. The rapid fault detection and power recovery system comprises an automatic metering system, a communication interface and a terminal and further comprises an alarm module; processed data comes from the automatic metering system and a marketing management system; the processed data is fed back to a low-voltage comprehensive application management system; the terminal comprises a distribution transform monitoring terminal, a concentrator and a metering unit group; the minimum detection voltage of a voltage detection module of the concentrator is 10V; both the distribution transform monitoring terminal and the concentrator are each provided with a wireless communication module communicated with the automatic metering system, and periodically perform data communication with the automatic metering system; the heartbeat cycle of the distribution transform monitoring terminal is 15 m; and the heartbeat cycle of the concentrator is 5 m. According to the rapid fault detection and power recovery system based on the rural power network, and the concentrator detection method thereof disclosed by the invention, the alarm precision is finely divided into four kinds by upgrading software in the existing concentrator, completing the interface of the automatic metering system and shortening the data interaction cycle of the concentrator and an ammeter; different maintainers can be dispatched easily; and thus, active and rapid first-aid repair is realized.
Description
Technical field
The present invention relates to power information communication technique field, be specifically related to a kind of system quickly detecting based on rural power grids fault and sending a telegram in reply, belong to electrical equipment technical field.
Background technology
Low-voltage network generally refers to the power circuit general name from the total way switch of distribution transformer low-pressure side (rated voltage is 400v) to Electricity customers electric power meter, and it is that in electric power networks, electric pressure is minimum, quantity is the hugest, running environment is the most severe and residential electricity consumption contacts the most direct part.
Power and in electric power first-aid task at conventional Rural Low-Voltage Power Network, for unplanned power-off event, just by row's repairing after must being reported for repairment by 95598 phones by user, it is too much that this phone reports the flow process intermediate link arranging to rush to repair again for repairment, power supply administration is not only allowed to be in passive situation, and user and 95598 customer services the uncertainty of breakdown judge be result in breakdown repair repeat send work, result in relatively low CSAT.
Metering automation system is the system that the power information to power consumer is acquired, processes and monitors, it integrates modern digital communication, computer hardware technique, Electric Energy Metering Technology, can information gathering comprehensive to need for electricity side and analyzing and processing.It, with public mobile communications network and electric power dedicated communications network for primary communications carrier, with mobile wireless, optical networking for supplemental communication carrier, realizes the data communication between component computer main website and situ metrology terminal by multiple communication modes.
The unified platform of metering automation system gathers the Various types of data such as each special change, public change and low-voltage customer, in addition to can meeting automatic coppying meter, the monitoring of electrical network, power utility check, electric energy quality monitoring, load management, Controlling line loss, dsm decision-making are both provided very important data and foundation.
There is following defect in existing metering automation system, low-voltage collecting meter reading system:
Metering automation system is by utilizing intelligent wireless network to provide the communication channel of Distribution transformer and management platform, and city net or Rural Low-Voltage Power Network distribution transformer are monitored and data acquisition by system.By the installation of Distribution transformer, although the voltage of distribute-electricity transformer district, electric current can be gathered in metering automation system main website, the electricity consumption situation of monitoring distribution transforming, but Distribution transformer was every 15 minutes and the mutual secondary data of main website at present, Distribution transformer can automatically generate alarm event notice metering automation system when distribution transformer has a power failure, alarm event that at present metering automation system can be uploaded according to Distribution transformer and put into effect the power-off event data in district by subsequent analysis statistics, shortcoming be this analysis often talent's statistics once.
Low-voltage collecting meter reading system be use low pressure spread spectrum mechanics of communication and the Computer Applied Technology such as carrier wave, RS485 bus, collection low-voltage network electric energy meter data acquisition, transmit, be processed as one automatization's Electric Power Metering Management System.The analysis of the power informations such as the user's electric energy meter perfect automatic remote of enforcement accessing this system is checked meter by main realization, the monitoring of measuring equipment working condition and grasp, there is provided high-quality electricity and electric power data etc. to system, thus provide foundation for data analysis business such as other analysis of electric power consumptions.The resident of the little zone type in city, its metering electric energy meter is concentrated very much, it is possible to use the electronic electric energy meter with 485 communications measures, and centralized automatic meter-reading device carries out data acquisition by RS485 connection to electric energy meter.And for living more scattered small towns, need to use carrier electric energy meter that user is measured, concentrator gathers carrier electric energy meter data by electric lines of force.Main website gathers the data of concentrator by mechanicss of communication such as GPRS wireless network, CATV, reaches the purpose checked meter.
Existing concentrator carries out online connection with the communication cycle every 15 minutes with metering automation system, once at two all after dates, metering automation system finds that concentrator will be called together survey with sense channel situation by heart beating frame automatically that do not receive concentrator, if metering automation system detects that passage cannot use, i.e. may determine that the concentrator of correspondence goes offline.But these data are not stored by metering automation system, only it is temporarily stored in server memory.Metering automation system can add up concentrator online hours and not online hours by the quantity receiving concentrator heart beating frame for statistically one day.
Owing to concentrator in house software limits, existing concentrator does not the most possess and stops Terminal Alert functions such as powering on.Due to the characteristic of low pressure carrier wave technology Channel Sharing and the complexity of low-voltage distribution web frame and the time variation of load, in the account of low-voltage platform area, community account pattern is " concentrator-harvester-ammeter ", and rural area account pattern is " concentrator-ammeter ".So ammeter is not divided in the way of branch line or ammeter box by current platform district following account information.
Metering automation system, with the data interaction of concentrator, is not belonging to the data in the range of stipulations and cannot be carried out alternately.Such as, metering automation system can carry out the mark of emphasis electric supply meter by upgrading when concentrator issues ammeter archives to some ammeter, but metering automation system cannot issue the ammeter file data of not " measuring ammeter group " in the range of stipulations to concentrator.
The power failure alarm equipment that branch line below existing rural power grids platform district is not correlated with.At present metering automation system can gather the alarm event that powers on that stops of Distribution transformer in time, but the alarm of Distribution transformer is only capable of the reference data that has a power failure as whole low-voltage platform area.Copy owing to the data of the branch portion below current metering automation system acquisition platform district are mainly used in collection, it is relatively low that the requirement to Real-time Collection copied by collection, so the accident analysis of ammeter is only copied data back at collection and is just carried out after server end by current metering automation system, due to the hysteresis quality (ammeter data gathers once a day) of data analysis, all data copied only with collection alert the timeliness required by the project of not reaching to low-voltage circuit.
The problem that can not be realized the alarm that has a power failure of the following circuit in platform district and equipment by the method (such as reducing metering automation system and terminal, the data interaction cycle of ammeter) only revising server.Alerting to realize the power failure of the following circuit in platform district and equipment, original imagination is by realizing the judgement the most online to ammeter in the cycle of server end shortening metering automation system acquisition ammeter data.Even if but the part ammeter on the following branch line in Jin Duitai district shortens collection period, such as by the cycle time of collection to 15 minutes, it is contemplated that collection period shortening can cause concentrator to produce mass data campus network with main website, and the consequence that can interfere the stability that existing metering automation system collection is copied, so it is worthless for realizing the power failure alarm of the following circuit in platform district and equipment by the method only revising server.
Summary of the invention
Quickly detect and send a telegram in reply new technique for research and development low voltage electric network, particularly rural power grids fault, the problem solving the power failure automatic alarm of low-voltage power line, equipment and related facility, provide safeguard for low-voltage power reliability service.The present invention is by modeling low pressure rural power grids platform district, utilize collection Distribution transformer stops the event of powering in real time, shorten concentrator heart beat cycle and gather concentrator heartbeat data, gather concentrator stops upper electric alarm, failure alarm event of checking meter in real time, comprehensively analyze in conjunction with the scheduled outage information of marketing management system, User Profile information, platform district account information, it is achieved after low-voltage network line generation power-off fault, location ammeter has a power failure, measures ammeter group powers failure, concentrator fault, the target of platform district entirety power failure the most step by step.To passively rush to repair change actively repairing.To achieve these goals, the technical scheme that the present invention proposes is as follows:
Quickly detect based on rural power grids fault and telegram in reply system, at least include metering automation system and itself and low-voltage comprehensive AMS, the communication interface of marketing management system and terminal, it is characterised in that:
This detection and telegram in reply system also include terminal have a power failure, power on, the alarm module of failure of checking meter, its Data Source processed is in metering automation system, marketing management system, and the data feedback of process is in low-voltage comprehensive AMS；
Described terminal includes Distribution transformer, concentrator and metering units group, and the minimum detection voltage of the voltage detection module of described concentrator is 10V；Distribution transformer, concentrator can be with communication modules such as GPRS；
Described Distribution transformer, concentrator are respectively provided with the wireless communication module with metering automation system communication and periodically carry out data communication with metering automation system, and the heart beat cycle of Distribution transformer is 15 minutes, and the heart beat cycle of concentrator is 5 minutes.
Quickly detect based on rural power grids fault and telegram in reply system is a subsystem of low-voltage comprehensive AMS, the Data Source processed is in metering automation system, marketing management system, the data feedback processed is in low-voltage comprehensive AMS, metering automation system is that the power information to power consumer is acquired, processes and the system of terminal monitoring, it is achieved the function systems such as the collection automatically of power information, metering exception monitoring, electric energy quality monitoring, electrical energy consumption analysis and management；Described marketing management system is the integrated information system that power marketing work carries out electronic management, mainly includes the functions such as Business Process System management, customer record management, electricity charge accounting management, electricity charge toll administration, electric energy measuring management, safety utilization of electric power and power utility check, line loss and electric quantity balancing management, customer service.Described low-voltage comprehensive AMS is the total management system of conversational traffic all to below 400V low pressure.Include that low pressure makes an inspection tour the functions such as management, low pressure recording, checking, and charging management, Low-voltage Line Loss management, low pressure inspection management, low-temperature measurement automated management, shift management at present.
This detection and telegram in reply system have terminal have a power failure, power on, the alarm module of failure of checking meter, the Data Source of this alarm module is in terminal, and data acquisition is in metering automation system.
In order to improve technique scheme, following technical characteristic can be increased further:
Described concentrator is I type concentrator, and described metering units is carrier electric energy meter, electrically connects and carry out data interaction with I type concentrator in carrier electric energy meter is arranged on unit of electrical energy table case and by electric lines of force, and described metering units group's quantity is less than 1024.Described metering units group's quantity is typically smaller than 400.Region relatively decentralized for rural power grids user, most 1024 of ammeter is hung under I type concentrator, actual installation is usually 200 ~ 300, but nonetheless, it is also required to time-consuming 2 ~ 3 hours by time all electric energy meters of low voltage power line carrier technology for detection, as the improvement to existing equipment, using I type concentrator can use existing electric energy meter, improvement cost is low.
Also can further optimisation technique scheme as follows:
Described concentrator is I type concentrator, described metering units is RS-485 electric energy meter, RS-485 electric energy meter is installed concentratedly and is then electrically connected with carrier acquisition device by RS-485 cable and carried out data interaction in multidigit electric energy metering box, I type concentrator electrical connection carrier acquisition device, the data of collection are carried out data interaction by power carrier mode and I type concentrator by carrier acquisition device, and described metering units group's quantity is less than 32.Rural power grids user concentrated area, such as cell environment, can use this modification scheme.
May be used without another optimisation technique scheme as follows:
Described concentrator is II type concentrator, described metering units is RS-485 electric energy meter, RS-485 electric energy meter is installed concentratedly and is then electrically connected and carry out data interaction with II type concentrator by RS-485 cable in multidigit electric energy metering box, and described metering units group's quantity is less than or equal to 32.II type concentrator maximum installs 32 electric energy meters, owing to RS485 line interactive mode is ageing the best, and this II type concentrator band GPRS module, in gathering an ammeter box, electric energy meter data also only have 1 ~ 2 minute, ageing by force, therefore II type concentrator can be by the range shorter of breakdown judge to single ammeter.
Therefore, for the aggregate users such as community, this measures ammeter group is exactly the subordinate electric energy meter group as acquisition units with a carrier acquisition device or II type concentrator；For region the most scattered for user in rural area, this measures ammeter group is exactly the emphasis user electric energy meter group chosen for monitoring transformator backbone fault, from the leading portion of backbone, stage casing, latter end takes 4-6 emphasis user's electric energy meter (at least 3 electric energy meters are as standby) respectively, and as measurement emphasis user's electric energy meter of this backbone, (prioritizing selection power load is relatively large, the relatively easy user observing electric energy meter reading), the topology network architecture so arranging rear digital independent is optimized, reading quantity reduces, shorten the monitoring time, fault coverage can be determined the most accurately.
It is insecure for being less than, with line voltage, the foundation that the 60% of rated voltage is terminal power failure.Because rural power grids exist the feature that voltage pulsation is bigger, circuit instantaneous voltage can be down to 90V or following well below starting voltage 60%.So the threshold modifying that concentrator generates in the present invention power-off event is 10V, and concentrator generate power on judge concentrator last time before event stop whether the event of powering on is power-off event, to avoid generating the event that repeatedly powers on.In actual environment, there may exist the situation that only phase line disconnects, and concentrator still can detect that weak voltage (generally less than 10V) in this case, therefore the acquiescence minimum detection voltage of concentrator voltage detection module is 10V.
In such scheme:
Distribution transformer, this terminal is public distribution transformer comprehensive monitoring terminal, realize public affairs and become side acquiring electric energy information, including data acquisition for electric energy, distribution transformer monitoring running state, power quality is monitored, and the data gathered are realized management and remote transmission, simultaneously can be with functions such as integrating metrology, the voltage examinations of platform district.
I type concentrator, this terminal is in units of transformer platform area, by low voltage power network channel or wireless channel to all kinds of carrier wave metering units, the information of carrier acquisition device in platform district, store and control, by the equipment of long-range common channel Yu metering automation systems exchange data；
II type concentrator, this terminal is by the information of RS-485 cable and all kinds of RS-485 metering units, stores and control, by the equipment of long-range common channel Yu metering automation systems exchange data.
Metering units is electric energy meter, is divided into carrier electric energy meter and RS-485 electric energy meter.
Described metering automation system includes automatically gathering, measuring exception monitoring, electric energy quality monitoring, electrical energy consumption analysis and management functional module.
Its physical location of described alarm module lays respectively at the computer server of metering automation system, communication port, concentrator, Distribution transformer and metering units.
Described Distribution transformer has a power failure and upper electric alarm frame data, concentrator heart beat cycle frame data, concentrator has a power failure and upper electric alarm frame data, concentrator are checked meter, and failure alarm frame data report metering automation system.
Described metering automation system also includes interface server, front-collection server, fire wall and router.
Quickly detect based on rural power grids fault and the concentrator detection method of system of sending a telegram in reply:
Described concentrator is II type concentrator；
A. quickly detect based on rural power grids fault and telegram in reply system records the GPS position information of electric energy meter group；
B. the heart beat cycle of concentrator is set to 5 minutes；
C. concentrator subordinate electric energy meter forms a measurement electric energy meter group, and alarm logic is as follows: concentrator detects that external communication voltage is equal to 10 volts, and concentrator generates self power-off event and automatically reports metering automation system；When concentrator detects that external communication voltage is more than the 60%(concentrator normal working voltage of rated voltage) and to stop the event of powering on be power-off event the last time, and concentrator generates and self powers on event and this event is reported metering automation system automatically；
D. with 3 minutes data interaction situations for cycle detection subordinate's electric energy meter after concentrator normally works, every 3 cycles add up a concentrator and electric energy meter interaction scenario, if there is the electric energy meter N that continuous 3 cycle equal data interactions are failed, then concentrator generates the turkey of checking meter comprising electric energy meter N and is automatically reported to metering automation system.
Another kind quickly detects and the concentrator detection method of system of sending a telegram in reply based on rural power grids fault:
Described concentrator uses I type concentrator；
A. the some emphasis users on every backbone of power taking net form one and measure electric energy meter group, quickly detect based on rural power grids fault and telegram in reply system records the GPS position information of electric energy meter group；
B. the heart beat cycle of concentrator is set to 5 minutes；
C. detecting that external communication voltage is 10 volts when concentrator, concentrator generates power failure alarm event and this event is reported to metering automation system automatically；When concentrator detects that external communication voltage is more than the 60%(concentrator normal working voltage of rated voltage) and to stop the event of powering on be power-off event the last time, and concentrator generates and powers on alarm event and this event is reported to metering automation system automatically；
D. the data interaction situation of emphasis user's electric energy meter is detected after concentrator normally works successively with 5 minutes for the cycle；Every 3 detection cycles add up a concentrator and electric energy meter interaction scenario, if there is the electric energy meter N that continuous 3 cycle equal data interactions are failed, then concentrator generates the turkey of checking meter comprising electric energy meter N and is automatically reported to metering automation system.
Native system is by the software upgraded in existing concentrator and improves metering automation system interface, thus optimize the network structure of low voltage electric network, reduce the electric energy meter quantity that each concentrator is responsible for, shorten the data interaction cycle of concentrator and electric energy meter simultaneously, increase the alarming mechanism within concentrator, thus make metering automation system can gather alarm and the heartbeat message (information in communication cycle) of concentrator active upload in time, the warning information of Distribution transformer is transmitted to low-voltage comprehensive AMS, native system combines the forwarding information from metering automation system, the GPS information of equipment, the information such as scheduled outage carry out the comprehensive analysis alerted, alarm precision can be divided into according to different terminal connection methods: ammeter alarm for power-off, measure ammeter group's alarm for power-off, concentrator fault warning, platform district alarm for power-off.And then the rapid rush-repair of driving low voltage failure, make power failure repairing to realize from equipment to branch office, then to repair personnel and the connection of user, the alarm result of refinement is conducive to sending different attendants, make actively rapid rush-repair become a reality.
Accompanying drawing explanation
Fig. 1 is the network architecture diagram of the present invention；
Fig. 2 is the application architecture figure of the present invention；
Fig. 3 is that the terminal of the present invention is connected figure with ammeter；
Fig. 4 is the measurement ammeter group model figure of the present invention
Fig. 5 is the alert analysis logical flow chart of the II type concentrator of the present invention；
Fig. 6 is the alert analysis logical flow chart of the I type concentrator of the present invention；
Fig. 7 is the system failure alert analysis flow chart that quickly detects based on rural power grids fault and send a telegram in reply of the present invention；
Fig. 8 is that the cross-system alarm of the present invention judges and process chart.
Detailed description of the invention
Technological means in order to make the present invention realize is easy to understand with functional effect, and below in conjunction with embodiment, the invention will be further described.
As it is shown in figure 1, the system of the present invention can use the following network architecture:
Quickly detect based on rural power grids fault and telegram in reply system, at least include metering automation system and itself and low-voltage comprehensive AMS, the communication interface of marketing management system and terminal, this detection and telegram in reply system also include terminal have a power failure, power on, the alarm module of failure of checking meter, its Data Source processed is in metering automation system, marketing management system, and the data feedback of process is in low-voltage comprehensive AMS；Described terminal includes Distribution transformer, concentrator and metering units group, and the minimum detection voltage of the voltage detection module of described concentrator is 10V, and Distribution transformer, concentrator can be with communication modules such as GPRS；Described Distribution transformer, concentrator are respectively provided with the wireless communication module with metering automation system communication and periodically carry out data communication with metering automation system, the heart beat cycle of Distribution transformer is equal to 15 minutes, and the heart beat cycle of concentrator is equal to 5 minutes.Concentrator can use following 3 kinds of connected mode: A, concentrator to be I type concentrator according to specific environment with the physical connection of electric energy meter, metering units is carrier electric energy meter, electrically connects with I type concentrator and carries out data interaction in carrier electric energy meter is arranged on unit of electrical energy table case and by electric lines of force.B, concentrator are I type concentrator, metering units is RS-485 electric energy meter, RS-485 electric energy meter is installed concentratedly and is then electrically connected with carrier acquisition device by RS-485 cable and carried out data interaction in multidigit electric energy metering box, I type concentrator electrical connection carrier acquisition device, the data of collection are carried out data interaction by power carrier mode and I type concentrator by carrier acquisition device.C, concentrator are II type concentrator, described metering units is RS-485 electric energy meter, RS-485 electric energy meter is installed concentratedly and is then electrically connected and carry out data interaction with II type concentrator by RS-485 cable in multidigit electric energy metering box, and described metering units group's quantity is less than or equal to 32.Its physical location of alarm module lays respectively at the computer server of metering automation system, communication port, concentrator, Distribution transformer and metering units.Metering automation system also includes interface server, front-collection server, fire wall and router and automatically gathers, measures exception monitoring, electric energy quality monitoring, electrical energy consumption analysis and management functional module.Distribution transformer has a power failure and upper electric alarm frame data, concentrator heart beat cycle frame data, concentrator have a power failure and upper electric alarm frame data, concentrator are checked meter, and failure alarm frame data report metering automation system.
During work, the heartbeat data of alarm data that terminal is uploaded in real time by metering automation system by interface and concentrator is transmitted to low-voltage comprehensive AMS after resolving；Marketing management system is periodically by the middle database of the data-pushings such as platform district account data, user data, scheduled outage to low-voltage comprehensive AMS.
As in figure 2 it is shown, the application architecture schematic diagram explanation of the present invention:
(1) presentation layer: provide unified service application operation interface and information impression window, is that system region be directly facing the part operating user.
(2) application layer: realize concrete service logic, is the core layer of system main website.
(3) service layer: the Component service supports such as business service, security service that the overall situation is general are provided, and realize the service logic service that native system is special, provide general technical support for operation layer.
(4) data Layer: realize the storage of magnanimity information, access, arrange, for the management support of systems with data.Data Layer is realized by large-scale relevant database.
As it is shown on figure 3, platform district terminal is as follows with the connection of ammeter:
The public transformator that becomes under platform district is monitored by Distribution transformer, I type concentrator is typically mounted near Distribution transformer, I type concentrator is responsible for the carrier wave measuring equipment (carrier electric energy meter) under this TV station district is carried out data acquisition and forwarding, II type concentrator is typically mounted near the ammeter box of community, and II type concentrator is responsible for the RS485 measuring equipment of this community is carried out data acquisition and forwarding.Distribution transformer and concentrator all have and can carry out data interaction by GPRS module and metering automation system.One Ge Tai district both can only have I type concentrator also can only have II type concentrator, or the mixing of two kinds of equipment.
As shown in Figure 4, platform section model is descending successively: platform district, measurement ammeter group, ammeter.Measure ammeter group and be divided into two kinds, the first is that ammeter is managed concentratedly by the mode using ammeter box, ammeter is managed collectively by the way of inside ammeter box, one II type concentrator of installation is by RS485 line by which, the ammeter of this II type concentrator management becomes a measurement ammeter group with regard to merging, and quickly detects based on rural power grids fault and telegram in reply system can analyze ammeter power failure alarm by the real-time alarm data of acquisition II type concentrator, measurement ammeter group has a power failure alarm or II type concentrator fault warning；The second is for the most scattered situation of user, scattered ammeter is managed collectively by an I type concentrator, before every backbone, in, latter end take 1-3 ammeter respectively as emphasis electric supply meter, the emphasis electric supply meter selected on this backbone is integrated becomes a measurement ammeter group, quickly detects based on rural power grids fault and telegram in reply system can analyze measurement ammeter group have a power failure alarm by obtaining the failure alarm data of checking meter in real time of I type concentrator.For whole district, quickly detect based on rural power grids fault and telegram in reply system analyzes the power failure alarm in whole district by the real-time alarm data of acquisition Distribution transformer and subordinate's concentrator.
Quickly detect based on rural power grids fault and the concentrator detection method of system of sending a telegram in reply as it is shown in figure 5, a kind of
Described concentrator is II type concentrator；
A. quickly detect based on rural power grids fault and telegram in reply system records the GPS position information of electric energy meter group；
B. the heart beat cycle of concentrator is set to 5 minutes；
C. concentrator subordinate electric energy meter forms a measurement electric energy meter group, and alarm logic is as follows: concentrator detects that external communication voltage is equal to 10 volts, and concentrator generates self power-off event and automatically reports metering automation system；When concentrator detects that external communication voltage is more than the 60%(concentrator normal working voltage of rated voltage) and to stop the event of powering on be power-off event the last time, and concentrator generates and self powers on event and this event is reported metering automation system automatically；
D. with 3 minutes data interaction situations for cycle detection subordinate's electric energy meter after concentrator normally works, every 3 cycles add up a concentrator and electric energy meter interaction scenario, if there is the electric energy meter N that continuous 3 cycle equal data interactions are failed, then concentrator generates the turkey of checking meter comprising electric energy meter N and is automatically reported to metering automation system.
As shown in Figure 6, another kind quickly detects and the concentrator detection method of system of sending a telegram in reply based on rural power grids fault:
Described concentrator uses I type concentrator；
A. the some emphasis users on every backbone of power taking net form one and measure electric energy meter group, quickly detect based on rural power grids fault and telegram in reply system records the GPS position information of electric energy meter group；
B. the heart beat cycle of concentrator is set to 5 minutes；
C. detecting that external communication voltage is 10 volts when concentrator, concentrator generates power failure alarm event and this event is reported to metering automation system automatically；When concentrator detects that external communication voltage is more than the 60%(concentrator normal working voltage of rated voltage) and to stop the event of powering on be power-off event the last time, and concentrator generates and powers on alarm event and this event is reported to metering automation system automatically；
D. the data interaction situation of emphasis user's electric energy meter is detected after concentrator normally works successively with 5 minutes for the cycle；Every 3 detection cycles add up a concentrator and electric energy meter interaction scenario, if there is the electric energy meter N that continuous 3 cycle equal data interactions are failed, then concentrator generates the turkey of checking meter comprising electric energy meter N and is automatically reported to metering automation system.
As it is shown in fig. 7, quickly detect based on rural power grids fault and the comprehensive analysis of system of sending a telegram in reply is as follows.
For using the measurement ammeter group of I type concentrator, quickly detect based on rural power grids fault and the same ammeter of failure alarm of checking meter more than 20 times in a day is deleted (emphasis user's table is reverted to domestic consumer's ammeter) from the archives of the emphasis user in platform district by telegram in reply system, and other ammeter (the several standby emphasis electric supply meter of many foundation setting up measurement ammeter group when) is set as emphasis electric supply meter (after archives pass to metering automation system, metering automation system being automatically handed down to concentrator).
Disturbing due to signal lag etc., the alarm data in district passes to quickly detect based on rural power grids fault and telegram in reply system the most simultaneously on the same stage.Quickly detect based on rural power grids fault and each the alarm data received all is existed and quickly detect and in the cache pool of system of sending a telegram in reply based on rural power grids fault by telegram in reply system, quickly detect based on rural power grids fault and alarm data that telegram in reply system carries out district on the same stage in every 5 minutes to the alarm data inside cache pool contrasts (alarm data removed in a cache pool for every 5 minutes), finally according to being defined below being analyzed (other events combine knowledge base and analyze), alarm data and judged result are as shown in the table:
The alarm principle of concentrator all carries out alarm by stipulations requirement and judges.Being combined in the early stage investigation of distribution transformer monitoring and metering system, the interference running into Terminal Alert information can process as follows:
Powers failure measuring electric energy meter group judges that the stop event of powering on or I type concentrator according to II type concentrator self periodically detect the communication conditions of the ammeter in measurement ammeter group.Due to the unstability of carrier communication, there is following redundancy analysis, to evade the false judgment caused because of carrier signal unstable characteristic.
1, for the power-off event of concentrator, the power failure alarm triggered threshold values of concentrator is changed into external communication voltage equal to 10 volts by original external communication voltage less than 60%Un, it is to avoid because voltage ripple of power network causes false alarm.
2, for concentrator, concentrator three the detection cycles continuous to ammeter all do not collect data and just generate the ammeter's reading meter turkey of correspondence, it is to avoid because Communication causes false alarm.
3, quickly detect based on rural power grids fault and the telegram in reply system other emphasis electric supply meter of selection replaces I type concentrator and above passes on the emphasis electric supply meter of 20 turkeies of checking meter (automatically concentrator to be issued mark by metering automation system in one day, indicate that this ammeter is that the mode of domestic consumer or emphasis user realizes), it is to avoid because the instability of carrier communication causes false alarm.
4, for the measurement ammeter group under I type concentrator, quickly detecting based on rural power grids fault and inside system decision logic of sending a telegram in reply, in needs meet measurement ammeter group all there is just judgement measurement ammeter group power failure under conditions of turkey of checking meter in all emphasis electric supply meters, it is to avoid because the instability of carrier communication causes false alarm.
5, for whole district's power-off, need to meet Distribution transformer generation power-off event, and this TV station district exists 85% concentrator generation power-off event, it is to avoid because the factors such as indivedual concentrator damages cause false alarm.
Such as the cross-system data interaction figure that Fig. 8 is each system, its step is as follows:
A, quickly detect based on rural power grids fault and telegram in reply system will need monitoring terminal and emphasis files on each of customers be handed down to metering automation system by interface.
B, metering automation system are monitored corresponding terminal according to the archives accepted and update the emphasis files on each of customers in I type concentrator.
Alarm data that counterpart terminal is uploaded by C, metering automation system and heartbeat data are transmitted to quickly detect based on rural power grids fault and telegram in reply system after resolving.
The corresponding scheduled outage information in platform district, platform district archive information, terminal file information, User Profile information, ammeter archive information, repair personnel's archive information are periodically pushed to the intermediate database of low-voltage comprehensive AMS by D, marketing management system.
E, quickly detecting based on rural power grids fault and telegram in reply system combines warning information and middle database data carry out intelligent alarm judgement and generate repairing work order, work order comprises fault type and abort situation.
The repairing work order generated is sent to repairing staff on duty by the way of note and APP propelling movement and carries out breakdown repair and fast power restoration operation by F, low-voltage comprehensive AMS.
Above are only the specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, all changes utilizing this design that the present invention carries out unsubstantiality, the behavior invading scope all should be belonged to.
Claims (10)
1. quickly detect based on rural power grids fault and telegram in reply system, at least include metering automation system and its communication interface with low-voltage comprehensive AMS and terminal, it is characterised in that:
This detection and telegram in reply system also include terminal have a power failure, power on, the alarm module of failure of checking meter；
Described terminal includes Distribution transformer, concentrator and metering units group, and the minimum detection voltage of the voltage detection module of described concentrator is 10V；
Described Distribution transformer, concentrator are respectively provided with and the wireless communication module of metering automation system communication；
Described Distribution transformer and concentrator periodically carry out data communication with metering automation system, and the heart beat cycle of Distribution transformer is 15 minutes, and the heart beat cycle of concentrator is 5 minutes.
The most according to claim 1 quickly detect based on rural power grids fault and telegram in reply system, it is characterized in that described concentrator is I type concentrator, described metering units is carrier electric energy meter, electrically connecting and carry out data interaction with I type concentrator in carrier electric energy meter is arranged on unit of electrical energy table case and by electric lines of force, described metering units group's quantity is less than 1024.
The most according to claim 1 quickly detect based on rural power grids fault and telegram in reply system, it is characterized in that described concentrator is I type concentrator, described metering units is RS-485 electric energy meter, RS-485 electric energy meter is installed concentratedly and is then electrically connected with carrier acquisition device by RS-485 cable and carried out data interaction in multidigit electric energy metering box, I type concentrator electrical connection carrier acquisition device, the data of collection are carried out data interaction by power carrier mode and I type concentrator by carrier acquisition device, and described metering units group's quantity is less than 32.
The most according to claim 1 quickly detect based on rural power grids fault and telegram in reply system, it is characterized in that described concentrator is II type concentrator, described metering units is RS-485 electric energy meter, RS-485 electric energy meter is installed concentratedly and is then electrically connected and carry out data interaction with II type concentrator by RS-485 cable in multidigit electric energy metering box, and described metering units group's quantity is less than 32.
5. according to quickly detecting based on rural power grids fault and telegram in reply system described in any claim of 1-4, it is characterised in that described metering automation system includes automatically gathering, measuring exception monitoring, electric energy quality monitoring, electrical energy consumption analysis and management functional module.
The most according to claim 5 quickly detect based on rural power grids fault and telegram in reply system, it is characterised in that its physical location of described alarm module lays respectively at the computer server of metering automation system, communication port, concentrator, Distribution transformer and metering units.
The most according to claim 6 quickly detect based on rural power grids fault and telegram in reply system, it is characterised in that described Distribution transformer has a power failure and upper electric alarm frame data, concentrator heart beat cycle frame data, concentrator has a power failure and upper electric alarm frame data, concentrator are checked meter, and failure alarm frame data report metering automation system.
The most according to claim 6 quickly detect based on rural power grids fault and telegram in reply system, it is characterised in that described metering automation system also includes interface server, front-collection server, fire wall and router.
The most according to claim 4 quickly detect based on rural power grids fault and the concentrator detection method of system of sending a telegram in reply:
Described concentrator is II type concentrator；
A. quickly detect based on rural power grids fault and telegram in reply system records the GPS position information of electric energy meter group；
B. the heart beat cycle of concentrator is set to 5 minutes；
C. concentrator subordinate electric energy meter forms a measurement electric energy meter group, and alarm logic is as follows: concentrator detects that external communication voltage is equal to 10 volts, and concentrator generates self power-off event and automatically reports metering automation system；When concentrator detects that external communication voltage is more than the 60%(concentrator normal working voltage of rated voltage) and to stop the event of powering on be power-off event the last time, and concentrator generates and self powers on event and this event is reported metering automation system automatically；
D. with 3 minutes data interaction situations for cycle detection subordinate's electric energy meter after concentrator normally works, every 3 cycles add up a concentrator and electric energy meter interaction scenario, if there is the electric energy meter N that continuous 3 cycle equal data interactions are failed, then concentrator generates the turkey of checking meter comprising electric energy meter N and is automatically reported to metering automation system.
10. according to quickly detecting based on rural power grids fault and the concentrator detection method of system of sending a telegram in reply described in Claims 2 or 3:
Described concentrator uses I type concentrator；
A. the some emphasis users on every backbone of power taking net form one and measure electric energy meter group, quickly detect based on rural power grids fault and telegram in reply system records the GPS position information of electric energy meter group；
B. the heart beat cycle of concentrator is set to 5 minutes；
C. detecting that external communication voltage is 10 volts when concentrator, concentrator generates power failure alarm event and this event is reported to metering automation system automatically；When concentrator detects that external communication voltage is more than the 60%(concentrator normal working voltage of rated voltage) and to stop the event of powering on be power-off event the last time, and concentrator generates and powers on alarm event and this event is reported to metering automation system automatically；
D. the data interaction situation of emphasis user's electric energy meter is detected after concentrator normally works successively with 5 minutes for the cycle；Every 3 detection cycles add up a concentrator and electric energy meter interaction scenario, if there is the electric energy meter N that continuous 3 cycle equal data interactions are failed, then concentrator generates the turkey of checking meter comprising electric energy meter N and is automatically reported to metering automation system.
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