CN110244163B - Intelligent stage-level studying and judging method and device for power failure and recovery events of transformer area - Google Patents
Intelligent stage-level studying and judging method and device for power failure and recovery events of transformer area Download PDFInfo
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Abstract
The invention discloses a method and a device for intelligently studying and judging a power failure and restoration event level in a transformer area, wherein the method comprises the following steps: s1, monitoring power failure alarm events in a transformer area in real time, switching to a step S2 when monitoring the alarm events uploaded by a transformer area level terminal, and switching to a step S3 when monitoring the alarm events uploaded by a meter; s2, sequentially judging whether power failure occurs in the station area level terminal and the station area according to the levels, and controlling a corresponding meter to mark a power failure unit; and S3, controlling whether the meter, the terminal to which the meter belongs, the station area terminal and the station area are powered off or not according to the hierarchy according to the state of the power failure of the station area terminal, or sequentially judging whether the meter, the terminal to which the meter belongs, the station area terminal, the station area meter box and the branch line are powered off or not according to the hierarchy, and controlling the corresponding meter marking power failure unit. The method has the advantages of simple implementation method, capability of realizing the intelligent study and judgment of the power failure and power restoration of the transformer area, high study and judgment efficiency and precision and the like.
Description
Technical Field
The invention relates to the technical field of low-voltage distribution network monitoring, in particular to a method and a device for intelligently studying and judging a power failure and restoration event level in a transformer area.
Background
A large number of metering and collecting equipment terminals, electric energy meters and collectors are arranged in a low-voltage distribution network area, the metering and collecting equipment terminals comprise I-type concentrators, II-type concentrators, distribution and transformation monitoring and metering terminals, load management terminals, field station electric energy data collecting terminals and the like, the electric energy meters are three-phase electric energy meters and single-phase electric energy meters, the collectors comprise the I-type collectors and the II-type collectors and the like, different data collecting modes can be adopted between a main station and the terminals and between the terminals and the electric energy meters and according to different application scenes, if the main station and the terminals carry out data communication by using a wireless public network, data communication is carried out between the terminals and the electric energy meters by using RS485 or by using low-voltage power line carrier/micropower wireless, data communication is carried out between the collectors and the electric energy meters by using RS 485.
When a power failure and recovery event occurs to equipment in a distribution area, a power failure and recovery alarm event is generated and sent to a master station, the reporting of the related events of the current electric energy meter is based on the power failure and recovery event before reporting by using an operation state word in a charged state, namely the operation state of the electric energy meter determines the power failure and recovery event to report, the master station verifies the power failure and recovery state at the reporting position of the event after receiving the power failure and recovery alarm event, but only the power failure and recovery state at the reporting position of the event can be determined, the power failure and recovery state at other positions and the specific area where the power failure and recovery occurs cannot be determined, various terminals and collectors in the distribution network can possibly generate the power failure and recovery event, namely the power failure and recovery event not only comprises the electric energy meter event, but also comprises a collector event and a terminal event, and when the power failure and recovery event occurs, the power failure and recovery event can be a single equipment event such as a single electric energy meter, a single collector or a single equipment event such as a plurality of electric energy meters, The multi-device event of multiple devices of multiple collectors or multiple terminals may also be a full-device event of all electric energy meters, all collectors or all terminals, and the influence degrees caused by outage and restoration events at different positions and in different ranges are different, for example, when a terminal event such as a concentrator occurs, if the terminal event is not processed in time, the influence on production, life, personal safety and the like is large.
When a master station receives a power failure and restoration alarm event, if a specific power failure and restoration occurrence position needs to be determined at the same time, all devices in a certain range at a reporting position of the power failure and restoration alarm event in a distribution area are generally acquired for judgment at present. Therefore, it is desirable to provide a method for determining a power outage event in a distribution room, so that a specific power outage position and area can be determined quickly and accurately when the power outage event occurs.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides the method and the device for intelligently studying and judging the power failure and recovery events of the transformer area, which are simple in implementation method, high in studying and judging efficiency and high in studying and judging precision.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a stage area power failure and recovery event level intelligent studying and judging method comprises a power failure studying and judging step, wherein the power failure studying and judging step comprises the following steps:
s1, power failure event monitoring: monitoring power failure alarm events in the transformer area in real time, when power failure alarm events uploaded by a transformer area level terminal are monitored, executing a step S2, and when power failure alarm events uploaded by a meter are monitored, executing a step S3;
s2, terminal-level power failure research and judgment: judging whether power failure occurs in the station area level terminal and the station area in sequence according to the levels, and controlling the corresponding meter to mark the power failure unit when the power failure occurs;
s3, meter-level power failure study and judgment: according to the state of power failure of the station level terminal, whether power failure occurs in the meter, the terminal to which the meter belongs, the station level terminal and the station area or not is judged in sequence according to the hierarchy, or whether power failure occurs in the meter, the terminal to which the meter belongs, the station level terminal, the meter box in the station area and the branch line is judged in sequence according to the hierarchy, and the corresponding meter marking power failure unit is controlled when the power failure occurs.
As a further improvement of the present invention, the step of determining whether or not a power failure has occurred in the station level terminal in steps S2 and S3 includes: when a terminal power failure alarm event reported by a station-level terminal is received, judging whether the received terminal power failure alarm event belongs to a preset blacklist or a preset power failure unit, if not, calling voltage data of the corresponding station-level terminal, and confirming whether the station-level terminal has power failure according to the called data, wherein the terminal power failure alarm event is valid.
As a further improvement of the present invention, the step of determining whether a power outage event occurs in the distribution room in step S2 includes: judging whether at least one station area level terminal exists in the current station area and is judged to be powered off, judging whether a plurality of terminals located at the same installation position are all judged to be powered off, if so, judging that a power failure event occurs in the current station area, and otherwise, acquiring data of a station area meter-unloading meter to judge whether the power failure event occurs in the station area meter-unloading meter.
As a further improvement of the present invention, the step of S3 includes:
s31, acquiring meter data to judge whether the meter has power failure, if so, executing step S32, otherwise, finishing the judgment;
s32, acquiring data of the terminal to which the meter belongs to judge whether the terminal to which the meter belongs has power failure, if so, executing the step S33, otherwise, finishing the research and judgment;
s33, acquiring the data of the station-level terminal to judge whether the station-level terminal has power failure, if so, executing the step S34, otherwise, executing the step S35;
s34, the meter marks the power failure unit under the control terminal, and then the data of the distribution room is obtained to judge whether the distribution room has power failure, if the meter marks the power failure unit under the control distribution room, the research and judgment are finished;
and S35, respectively acquiring data of the meter box and the low-voltage branch line to judge whether the meter box and the low-voltage branch line have power failure, and if the meter under the control meter box or the low-voltage branch line is marked with a power failure unit, finishing the research and judgment.
As a further improvement of the present invention, the step of determining whether or not the meter has been powered off in step S31 includes: when a meter power failure alarm event reported by a terminal is received, judging whether the received meter power failure alarm event belongs to a preset blacklist or a preset power failure unit, if not, calling voltage data of a corresponding meter, and determining whether the meter has power failure according to the called data, wherein the received meter power failure alarm event belongs to a preset blacklist or a preset power failure unit.
As a further improvement of the present invention, the step of determining whether a power outage event occurs in the low voltage branch line in step S33 includes: judging whether the current transformer area is in power failure, if the current transformer area is not in power failure and at least one meter box under the transformer area is judged to be in power failure, controlling specified communication meters in all meter boxes which do not report power failure events under the current low-voltage branch line to initiate a calling terminal A-phase voltage, carrying out power failure validity research and judgment on calling voltage data, and if the current low-voltage branch line is judged to be in power failure, judging that the power failure event occurs on the current low-voltage branch line.
As a further improvement of the present invention, in step S35, when determining whether the low-voltage branch line has a power failure, if an HPLC module is installed in the electric energy meter, after receiving a power failure event sent from the electric energy meter, phase information of the electric energy meter is obtained for determination, if the power failure ratio of the electric energy meter in the same phase is greater than a preset threshold, it is determined that a phase-splitting power failure event occurs, and real-time load data in the station area is obtained for auxiliary study and determination, and finally it is determined whether the current low-voltage branch line has a power failure.
As a further improvement of the present invention, the step of determining whether the meter box has a power failure in step S35 includes: if the low-voltage branch line where the current meter box is located has no power failure and at least one meter box inner meter reports a power failure event, a plurality of communication meter meters designated under the current meter box are controlled to initiate a call and test terminal A-phase voltage, power failure effectiveness study and judgment are conducted on the call and test voltage data, and if the power failure is judged, the current meter box is judged to be power failure.
As a further improvement of the present invention, after the step S3, a step S4 of re-electrifying research is further included, and the specific steps include:
s41, monitoring the power restoration alarm event in the transformer area in real time, executing the step S42 when the power restoration alarm event uploaded by the transformer area level terminal is monitored, and executing the step S43 when the power restoration alarm event reported by the meter is monitored;
s42, sequentially judging whether the power restoration occurs to the station area level terminal and the station area according to the power restoration state of the marked power failure unit according to the levels;
and S43, sequentially judging whether the meter, the meter terminal, the station area level terminal, the meter box and the branch line generate the power restoration according to the power restoration state of the marked power failure unit according to the hierarchy.
A station area power failure and recovery event level intelligent judging device is provided, wherein a computer device is programmed to execute the steps of the method, or a storage medium of the computer device is stored with a computer program which is programmed to execute the method.
Compared with the prior art, the invention has the advantages that:
1. the stage-level intelligent studying and judging method and device for the power failure and recovery events of the transformer area fully utilize the stage characteristics of a topological structure of the transformer area, when a power failure alarm event is monitored in the transformer area, whether the power failure occurs in the transformer area stage terminal and the transformer area is judged in sequence according to the stage aiming at the power failure of the transformer area stage terminal, and the power failure states of the transformer area stage terminal, the transformer area and meter boxes and branch lines in the transformer area are judged in sequence according to the stage aiming at the power failure of the transformer meter, so that the intelligent studying and judging of the transformer area power failure events can be realized.
2. According to the station area power failure and recovery event level intelligent research and judgment method and device, when the terminal level power failure is researched and judged, whether the station area level terminal has power failure or not is judged, if the station area level terminal has power failure, whether the station area with the higher level has power failure or not is judged, the power failure occurrence area can be judged quickly and accurately, the judged power failure unit is marked, and the subsequent power recovery event can be researched and judged by utilizing the marked power failure unit.
3. According to the method and the device for intelligently studying and judging the power failure level of the platform area, when the power failure of the meter level is studied and judged, whether the power failure of the meter, the terminal to which the meter belongs and the platform area level terminal occurs or not is judged in sequence, if the power failure occurs in the platform area level terminal, whether the power failure occurs in the platform area is further judged, if the power failure does not occur in the platform area level terminal, whether the power failure occurs in the meter box and the low-voltage branch box is further judged, when the power failure of the meter is monitored, the specific power failure level position and area can be judged quickly and accurately, the judged power failure unit is marked, and the subsequent power failure event can be studied and judged by utilizing the marked power failure unit.
4. The station area power-off and power-off event level intelligent research and judgment method and device further realize intelligent research and judgment on terminal level power-off and meter level power-off according to levels, sequentially judge the power-off states of the station area level terminal and the station area aiming at the power-off of the station area level terminal, and sequentially judge the power-off states of the meter, the meter terminal, the station area level terminal, the meter box and the branch line aiming at the power-off of the meter level power-off, so that the power-off area can be rapidly judged.
Drawings
Fig. 1 is a schematic flow chart illustrating an implementation of the intelligent research and judgment method for a power outage and restoration event level in a distribution room according to the embodiment.
Fig. 2 is a schematic view of an implementation flow for implementing the terminal-level power outage study and judgment in this embodiment.
Fig. 3 is a schematic diagram of a specific process for implementing power outage determination of a platform-level terminal in an embodiment of specific application of the present invention.
Fig. 4 is a schematic diagram of an implementation flow of meter-level power outage investigation in this embodiment.
Fig. 5 is a schematic diagram of an implementation flow for implementing the re-electrifying study of the station area level terminal in this embodiment.
Fig. 6 is a schematic diagram of an implementation flow of the meter-level complex electricity research in this embodiment.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments of the description, without thereby limiting the scope of protection of the invention.
As shown in fig. 1, the method for intelligently studying and judging the power failure and power restoration event level in the distribution room of the present embodiment includes a power failure studying and judging step, where the power failure studying and judging step includes:
s1, power failure event monitoring: monitoring power failure alarm events in the transformer area in real time, when power failure alarm events uploaded by a transformer area level terminal are monitored, executing a step S2, and when power failure alarm events uploaded by a meter are monitored, executing a step S3;
s2, terminal-level power failure research and judgment: judging whether power failure occurs in the station area level terminal and the station area in sequence according to the levels, and controlling the corresponding meter to mark the power failure unit when the power failure occurs;
s3, meter-level power failure study and judgment: according to the state of power failure of the station level terminal, whether power failure occurs in the meter, the terminal to which the meter belongs, the station level terminal and the station area or not is judged in sequence according to the hierarchy, or whether power failure occurs in the meter, the terminal to which the meter belongs, the station level terminal, the meter box in the station area and the branch line is judged in sequence according to the hierarchy, and the corresponding meter marking power failure unit is controlled when the power failure occurs.
The topological structure of a transformer area is generally composed of the transformer area, a transformer area level terminal, a plurality of branch lines according to a hierarchy, a plurality of meter boxes arranged under each branch line, and a plurality of electric energy meters arranged in each meter box. The method fully utilizes the hierarchical characteristic of the topological structure of the transformer area, when a power failure alarm event is monitored in the transformer area, whether the power failure occurs in the transformer area terminal is judged according to the hierarchy, and the power failure states of the meter, the terminal to which the meter belongs, the transformer area terminal, the transformer area and meter boxes and branch lines in the transformer area are judged according to the hierarchy, so that the intelligent research and judgment of the power failure events of the transformer area can be realized.
As shown in fig. 2, the specific steps of the terminal-level evaluation in step S2 include:
s21, acquiring data of the platform-level terminal to judge whether the platform-level terminal has power failure, if so, executing the step S22, otherwise, finishing the judgment;
and S22, the meter marks the power failure unit under the control terminal, and then the data of the distribution room is acquired to judge whether the distribution room has power failure, if so, the meter marks the power failure unit under the control distribution room, otherwise, the judgment is finished.
The station area terminal is a terminal device arranged in the station area, and the station area terminal may only be powered off for the station area terminal when the power failure occurs, or may be powered off for the whole station area. In the embodiment, when the power failure alarm event uploaded by the platform area terminal is received, whether the platform area terminal has power failure or not is judged first, if the platform area terminal is judged to have power failure, whether the platform area with a higher hierarchy has power failure or not is judged, the power failure occurrence area can be judged quickly and accurately, the judged power failure unit is marked at the same time, and the marked power failure unit can be used for studying and judging the subsequent power restoration event.
In steps S2 and S3 of this embodiment, the step of determining whether a power outage has occurred at the station level terminal includes: when a terminal power failure alarm event reported by a platform-level terminal is received, judging whether the received terminal power failure alarm event belongs to a preset blacklist or a preset power failure unit, if not, and the terminal power failure alarm event is valid, calling and measuring voltage data of the corresponding platform-level terminal, and determining whether the platform-level terminal has power failure according to the called and measured data. The blacklist can be specifically set as a terminal which reports frequently and reports false, and the power failure and power restoration events of the blacklist or the power failure unit are not processed, so that unnecessary and wrong processing of the power failure and power restoration events is avoided.
In a specific application embodiment, as shown in fig. 3, the detailed steps of determining whether the station level terminal has a power failure include:
judging whether the terminal belongs to a blacklist or a power failure unit, if so, only processing the first report of the terminal on the current day, and not executing the next step;
judging whether the alarm time is valid, and if the alarm time is empty or invalid (if the alarm time is not the same day), taking the current time of the system as the power failure time;
judging whether the power failure event is a supplementary report or not, if the power failure event is the supplementary report and the terminal is already analyzed and processed on the same day, correcting the power failure alarm reporting state in the database, and if not, executing the next step;
calling a phase voltage of the terminal A, analyzing a calling result, and if the calling result meets the following conditions: and if the terminal voltage is recalled and is not returned, or the terminal voltage value is 0 or is more than 0 and less than 132, the power failure is judged.
In step S2 of this embodiment, the step of determining whether a power outage event occurs in the distribution room includes: judging whether at least one platform area level terminal exists in the current platform area and is judged to be powered off, judging whether a plurality of terminals located at the same installation position are all judged to be powered off, if so, judging that a power failure event occurs in the current platform area, otherwise, acquiring data of a platform area lower meter to further judge whether the power failure event occurs in the platform area lower meter, and judging the power failure state of the platform area according to the power failure states of the plurality of terminals at the same position after judging that the power failure occurs in the platform area level terminal. The meter under the district can specifically select a plurality of communication optimal meters under the district.
As shown in fig. 4, the step S3 in this embodiment includes:
s31, acquiring meter data to judge whether the meter has power failure, if so, executing step S32, otherwise, finishing the judgment;
s32, acquiring data of the terminal to which the meter belongs to judge whether the terminal to which the meter belongs has power failure, if so, executing the step S33, otherwise, finishing the research and judgment;
s33, acquiring the data of the station-level terminal to judge whether the station-level terminal has power failure, if so, executing the step S34, otherwise, executing the step S35;
s34, the meter marks the power failure unit under the control terminal, and then the data of the distribution room is obtained to judge whether the distribution room has power failure, if the meter marks the power failure unit under the control distribution room, the research and judgment are finished;
and S35, respectively acquiring data of the meter box and the low-voltage branch line to judge whether the meter box and the low-voltage branch line have power failure, and if the meter under the control meter box or the low-voltage branch line is marked with a power failure unit, finishing the research and judgment.
When a power failure alarm event reported by a meter (electric energy meter) exists, power failure of a single meter can occur, power failure of a terminal to which the meter belongs can occur, and power failure of a station area terminal, a station area or a meter box and a branch line can occur. When the meter power failure event is researched and judged, whether the meter, the terminal to which the meter belongs and the station area terminal have power failure or not is judged in sequence, if the station area terminal has power failure, whether the station area has power failure or not is further judged, if the station area terminal does not have power failure, whether the meter box and the low-voltage branch box have power failure or not is further judged, when the meter power failure is monitored, the specific power failure level position and the specific power failure level area can be judged quickly and accurately, the judged power failure unit is marked at the same time, and the marked power failure unit can be used for researching and judging the subsequent power restoration event.
In step S31 of the present embodiment, the step of determining whether the meter has a power failure includes: when a meter power failure alarm event reported by a terminal is received, judging whether the received meter power failure alarm event belongs to a preset blacklist or a preset power failure unit, if not, calling voltage data of a corresponding meter, and determining whether the meter has power failure according to the called data, wherein the received meter power failure alarm event belongs to a preset blacklist or a preset power failure unit. The blacklist can be configured as a frequently reported and false-reported meter according to actual requirements.
In the specific application embodiment, the detailed steps for judging whether the meter has power failure are as follows:
the master station receives a meter power failure alarm event which is actively uploaded by the terminal;
judging whether the meter belongs to a blacklist or a preset power failure unit, and if not, executing the next step;
judging whether the alarm time is valid, and if the alarm time is empty or invalid (if the alarm time is not the same day), taking the current time of the system as the power failure time;
and calling A-phase voltage of the ammeter, calling no return or having a return value of 0 by the ammeter voltage, or having a return value greater than 0 and less than 132, and judging that the ammeter has power failure.
In step S33 of the present embodiment, the step of determining whether a power outage event occurs in the low-voltage branch line includes: judging whether the current transformer area is in power failure, if the current transformer area is not in power failure and at least one meter box under the transformer area is judged to be in power failure, controlling specified communication meters in all meter boxes which do not report power failure events under the current low-voltage branch line to initiate a calling terminal A-phase voltage, carrying out power failure validity research and judgment on calling voltage data, and if the current low-voltage branch line is judged to be in power failure, judging that the power failure event occurs on the current low-voltage branch line. The communication ammeter can specifically select a plurality of communication optimal ammeters under the ammeter box, and if all the acquisition devices under the low-voltage branch line judge that power failure occurs, the power failure of the low-voltage branch line is judged. If the power failure state of the transformer area, the power failure states of the meter boxes and the power failure states of the acquisition devices under the low-voltage branch lines can be combined to accurately judge the power failure state of the low-voltage branch lines.
In step S35, in this embodiment, when determining whether the low-voltage branch line has a power failure, if an HPLC (single-phase broadband carrier) module is installed in the electric energy meter, after receiving a power failure event sent from the electric energy meter, phase information of the electric energy meter is obtained to determine, if the power failure ratio of the electric energy meter in the same phase is greater than a preset threshold, it is determined that a phase-splitting power failure event occurs, and real-time load data uploaded by the station area/distribution transformer is obtained to perform auxiliary research and determination, and it is finally determined whether the current low-voltage branch line has a power failure. For the electric energy meter provided with the HPLC module, the HPLC module uploads the power failure event when the power failure event occurs, the phase information of the HPLC module and the electric energy meter is combined to judge the phase separation power failure event, meanwhile, the real-time load data is combined to assist in research and judgment, and the judgment precision of the phase separation power failure event can be further improved by combining the HPLC module.
In step S35 of this embodiment, the step of determining whether the meter box has a power failure includes: if the low-voltage branch line where the current meter box is located has no power failure and at least one meter box inner meter reports a power failure event, a plurality of communication meter meters designated under the current meter box are controlled to initiate a call and test terminal A-phase voltage, power failure effectiveness study and judgment are conducted on the call and test voltage data, and if the power failure is judged, the current meter box is judged to be power failure. Above-mentioned specific polylith communication optimal table under can selecting the table case carries out A looks power failure validity and studies and judges, if all collection system judge to have a power failure under this table case, then judge this table case and have a power failure. If the low voltage branch line does not have a power failure and have the polylith to report the power failure incident to table incasement meter, this table all judges all collection system under the case to have a power failure, and this embodiment is judging low voltage branch line does not have a power failure and has at least one table incasement meter to have a power failure, and all collection system all are judged when having a power failure under the table case simultaneously, judge that the table case has a power failure, can combine low voltage branch line and table incasement collection system's the power failure state to judge the power failure state of table case.
In this embodiment, step S3 is followed by step S4 of determining a power restoration, which includes the following steps:
s41, power restoration event monitoring: monitoring a power restoration alarm event in a transformer area in real time, executing a step S42 when the power restoration alarm event uploaded by a transformer area level terminal is monitored, and executing a step S43 when the power restoration alarm event reported by a meter is monitored;
s42, judging the terminal-level complex electricity: sequentially judging whether a station area level terminal and a station area generate power restoration according to the power restoration state of the marked power failure unit;
s43, meter-level complex electricity research and judgment: and sequentially judging whether the meter, the meter terminal, the station area terminal, the meter box and the branch line are subjected to power restoration according to the power restoration state of the marked power failure unit according to the hierarchy.
When the power restoration is researched and judged, the power restoration states of the station level terminal and the station area are sequentially judged aiming at the power restoration of the station level terminal, and the power restoration states of the meter, the meter terminal, the station level terminal, the meter box and the branch line are sequentially judged for the meter level power restoration, so that the power restoration area can be rapidly judged.
As shown in fig. 5, the step of evaluating the terminal-level complex current in this embodiment includes:
s4211, judging whether the platform area level terminal is powered back, counting a cancellation mark power failure unit under the control terminal, and executing the step S4212 if the platform area level terminal is powered back, otherwise finishing the research and judgment;
and S4212, judging whether the power failure unit is marked in the transformer area, if so, judging whether the transformer area is powered back, if the transformer area is powered back, controlling the meter in the transformer area to cancel the marking power failure unit, and if not, finishing the research and judgment.
As shown in fig. 6, the step of performing the meter-level complex electrical analysis in this embodiment includes:
s4221, judging whether the meter is powered on again, if so, executing the step S4222, and if not, finishing the judgment;
s4222, judging whether the terminal to which the meter belongs is powered up or not, and if so, executing the step S4223;
s4223, judging whether the power of the platform area level terminal is restored, if so, executing the step S4224, and if not, finishing the research and judgment;
and S4224, respectively judging whether the meter box and the branch line are in power restoration state, if so, canceling the meter box or the meter marking power restoration unit under the branch line, and judging the power restoration state of other meter boxes in the transformer area and the meter under the low-voltage branch line until the research and judgment are finished.
The step of determining whether the terminal is powered back in this embodiment includes: a station area level terminal, a II-type concentrator and a collector of the marked power failure unit report a power restoration alarm event, validity judgment is carried out on the terminal power restoration event, and if the terminal power restoration alarm event accords with the validity judgment, the equipment power restoration is judged; if the power restoration time is invalid, calling the A-phase voltage of the equipment to carry out power restoration research, and if the A-phase voltage is valid, judging that the equipment is powered back.
The step of determining the power restoration of the distribution room in this embodiment includes:
if the station level terminal under the station marked with the power failure unit reports a power restoration alarm event and the confirmation terminal studies and judges power restoration, judging the power restoration of the station;
if the station zone level terminals under the station zone marked with the power failure unit do not report the power restoration alarm event, but the meter has the active power restoration alarm event, and the power restoration of the meter is confirmed by study and judgment, the station zone is judged to be powered back;
if the station zone level terminal and the meter of the system marked power failure unit under the station zone marked power failure unit do not report the power restoration alarm event, and the load reporting user under the station zone exceeds a specified threshold value, judging that the station zone restores power;
in this embodiment, when determining whether the low-voltage branch line is powered back, specifically, if the meter box or meter under the low-voltage branch line marked with the power failure unit is determined to be powered back, the low-voltage branch line is determined to be powered back.
In this embodiment, when determining whether the meter box is powered back, if the meter box lower surface marked with the power failure unit is determined to be powered back, the meter box is determined to be powered back.
The specific steps of determining whether the meter is powered back in the embodiment include: if the meter reports a power restoration alarm event, the effectiveness of the power restoration stopping event of the meter is judged, if the effectiveness is judged, the power restoration of the meter is judged, if the power restoration time is invalid, the voltage of the meter is summoned to carry out power restoration research and judgment, and if the effectiveness is judged, the power restoration of the meter is judged.
The embodiment further comprises a step of researching and judging the power restoration, and the specific steps comprise: if the generated power failure event alarm does not generate a power restoration event alarm within a specified time, controlling to start power restoration completion research and judgment, controlling the acquisition device to call and test the A-phase voltage and carry out power restoration research and judgment, and controlling to call and test the A-phase voltage at the medium-voltage line and the station area level terminal to which the station area belongs so as to ensure the integrity of power restoration stopping event judgment.
When this embodiment judges whether the low voltage branch circuit is generated with the telegram again, if install HPLC (single-phase broadband carrier) module in the electric energy meter, still include the telegram again incident research and judge step based on HPLC electric energy meter, concrete step is: after a power restoration event uploaded by the electric energy meter is received, phase information of the electric energy meter is obtained for judgment, if the power restoration proportion of the electric energy meter under the same phase is larger than a preset threshold value, a split-phase power restoration event is judged to occur, real-time load data uploaded by a distribution area/distribution transformer is obtained for auxiliary study and judgment, whether the current low-voltage branch line is power restoration or not is finally judged, and the power restoration study and judgment of the low-voltage branch line can be realized based on an HPLC module.
Specifically, when the power outage and restoration is determined, the method further includes encapsulating alarm information (including analysis results related to the terminal and the electric meter) and storing the encapsulated alarm information in the power outage information database so as to facilitate subsequent data maintenance or data tracing.
This embodiment platform district stops intelligent study and judge device of power failure incident level, the device include the power failure study and judge module, and the power failure study and judge module includes:
the power failure event monitoring unit is used for monitoring power failure alarm events in the transformer area in real time, switching to the execution terminal level study and judgment module when the power failure alarm events uploaded by the transformer area level terminal are monitored, and switching to the execution meter level study and judgment module when the power failure alarm events uploaded by the meters are monitored;
the terminal-level power failure research and judgment unit is used for sequentially judging whether the power failure occurs in the station-level terminal and the station area according to the levels and controlling the corresponding meter to mark the power failure unit when the power failure occurs;
and the meter-level power failure research and judgment unit is used for controlling whether the power failure occurs to the meter, the terminal to which the meter belongs, the station-level terminal and the station area or not according to the hierarchy according to the state of the power failure occurring to the station-level terminal, or whether the power failure occurs to the meter, the terminal to which the meter belongs, the station-level terminal, the meter box in the station area and the branch line or not according to the hierarchy, and controlling the corresponding meter to mark the power failure unit when the power failure occurs.
In this embodiment, the device further includes a complex electric power research and judgment module, and the complex electric power research and judgment module includes:
the power restoration event monitoring unit is used for monitoring power restoration alarm events in the transformer area in real time, executing step S42 when the power restoration alarm events uploaded by the transformer area level terminal are monitored, and executing step S43 when the power restoration alarm events reported by the meter are monitored;
the terminal-level power restoration judging unit is used for sequentially judging whether power restoration occurs to the station area level terminal and the station area according to the power restoration state of the marked power failure unit and levels;
and the meter-level power restoration judging unit is used for sequentially judging whether the meter, the meter terminal, the station area level terminal, the meter box and the branch line generate power restoration according to the power restoration state of the marked power failure unit according to the hierarchy.
The device for studying and judging the power failure and restoration event level in the power distribution room of the present embodiment corresponds to the above method for studying and judging the power failure and restoration event level in the power distribution room one by one, and is not described herein again.
The intelligent research and judgment device for the power failure and restoration event level in the power distribution room of the embodiment may further include: comprising a computer device programmed to perform the steps of the method as described above, or a storage medium of the computer device having stored thereon a computer program programmed to perform the method as described above.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. The intelligent stage-level studying and judging method for the power failure and recovery events of the transformer area is characterized by comprising a power failure studying and judging step, wherein the power failure studying and judging step comprises the following steps of:
s1, monitoring power failure events: monitoring power failure alarm events in the transformer area in real time, when power failure alarm events uploaded by a transformer area level terminal are monitored, executing a step S2, and when power failure alarm events uploaded by a meter are monitored, executing a step S3;
s2, terminal-level power failure research and judgment: judging whether a station area terminal and a station area have power failure or not in sequence according to the hierarchy, judging whether the station area terminal has power failure or not when receiving a power failure alarm event uploaded by the station area terminal, judging whether the station area terminal has power failure or not if judging that the station area terminal has power failure, judging whether the station area with higher hierarchy has power failure or not, and controlling a corresponding meter to mark a power failure unit when judging that the power failure occurs;
s3, meter-level power failure study and judgment: according to the state of power failure of the station level terminal, whether power failure occurs in the meter, the terminal to which the meter belongs, the station level terminal and the station area is judged in sequence according to the levels, or whether power failure occurs in the meter, the terminal to which the meter belongs, the station level terminal, the meter box in the station area and the branch line is judged in sequence according to the levels, whether power failure occurs in the meter, the terminal to which the meter belongs and the station level terminal is judged in sequence, if power failure occurs in the station level terminal, whether power failure occurs in the station area is further judged, if power failure does not occur in the station level terminal, whether power failure occurs in the meter box and the low-voltage branch box is further judged, and when power failure occurs, the corresponding meter is controlled to mark a power failure unit.
2. The method for intelligently judging the power outage and restoration event level in the transformer area according to claim 1, wherein the step of judging whether the power outage occurs at the transformer area level terminal in the steps S2 and S3 comprises: when a terminal power failure alarm event reported by a station-level terminal is received, judging whether the received terminal power failure alarm event belongs to a preset blacklist or a preset power failure unit, if not, calling voltage data of the corresponding station-level terminal, and confirming whether the station-level terminal has power failure according to the called data, wherein the terminal power failure alarm event is valid.
3. The method for intelligently judging the power outage and restoration event level in the distribution room as claimed in claim 1, wherein in step S2, the step of determining whether the power outage event occurs in the distribution room comprises: judging whether at least one station area level terminal exists in the current station area and is judged to be powered off, judging whether a plurality of terminals located at the same installation position are all judged to be powered off, if so, judging that a power failure event occurs in the current station area, and otherwise, acquiring data of a station area meter-unloading meter to judge whether the power failure event occurs in the station area meter-unloading meter.
4. The method for intelligently judging the level of a power failure event of a platform area according to claim 1, 2 or 3, wherein the step S3 comprises:
s31, acquiring meter data to judge whether the meter is powered off or not, if so, executing a step S32, and if not, finishing the research and judgment;
s32, acquiring data of the terminal to which the meter belongs to judge whether the terminal to which the meter belongs has power failure, if so, executing the step S33, and if not, finishing the research and judgment;
s33, acquiring data of the platform area level terminal to judge whether the platform area level terminal has power failure, if so, executing the step S34, otherwise, executing the step S35;
s34, a meter marking power failure unit under the control terminal acquires data of the platform area to judge whether the platform area has power failure, and if the meter marking power failure unit under the control platform area is judged, the research and judgment are finished;
and S35, respectively acquiring data of the meter box and the low-voltage branch line to judge whether the meter box and the low-voltage branch line have power failure, and if the meter under the control meter box or the low-voltage branch line is marked with a power failure unit, finishing the research and judgment.
5. The method for intelligently judging the power failure and recovery event level of the distribution room as claimed in claim 4, wherein in step S31, the step of determining whether the meter has power failure comprises: when a meter power failure alarm event reported by a terminal is received, judging whether the received meter power failure alarm event belongs to a preset blacklist or a preset power failure unit, if not, calling voltage data of a corresponding meter, and determining whether the meter has power failure according to the called data, wherein the received meter power failure alarm event belongs to a preset blacklist or a preset power failure unit.
6. The method for intelligently studying power failure and restoration events of the distribution room according to claim 4, wherein in step S33, the step of determining whether a power failure event occurs in the low voltage branch line comprises: judging whether the current transformer area is in power failure, if the current transformer area is not in power failure and at least one meter box under the transformer area is judged to be in power failure, controlling specified communication meters in all meter boxes which do not report power failure events under the current low-voltage branch line to initiate a calling terminal A-phase voltage, carrying out power failure validity research and judgment on calling voltage data, and if the current low-voltage branch line is judged to be in power failure, judging that the power failure event occurs on the current low-voltage branch line.
7. The method according to claim 4, wherein in step S35, when determining whether the low-voltage branch line has a power failure, if the electric energy meter is installed with an HPLC module, after receiving a power failure event sent from the electric energy meter, phase information of the electric energy meter is obtained for determination, if the power failure ratio of the electric energy meter in the same phase is greater than a preset threshold, it is determined that a phase-splitting power failure event has occurred, and real-time load data in the platform area is obtained for auxiliary study and determination, and it is finally determined whether the current low-voltage branch line has a power failure.
8. The method for intelligently studying power failure and restoration event hierarchy in transformer area according to claim 4, wherein in the step S35, the step of judging whether the meter box has power failure comprises: if the low-voltage branch line where the current meter box is located has no power failure and at least one meter box inner meter reports a power failure event, a plurality of communication meter meters designated under the current meter box are controlled to initiate a call and test terminal A-phase voltage, power failure effectiveness study and judgment are conducted on the call and test voltage data, and if the power failure is judged, the current meter box is judged to be power failure.
9. The method for intelligently studying power-off and power-restoration event level of distribution room as claimed in claim 1, 2 or 3, wherein said step S3 is followed by a power-restoration studying step S4, which comprises the following steps:
s41, monitoring a power restoration alarm event in the transformer area in real time, executing a step S42 when the power restoration alarm event uploaded by a transformer area level terminal is monitored, and executing a step S43 when the power restoration alarm event reported by a meter is monitored;
s42, sequentially judging whether a platform area level terminal and a platform area generate power restoration according to the marked power restoration state of the power failure unit according to the levels;
and S43, sequentially judging whether the meter, the meter terminal, the station area level terminal, the meter box and the branch line are subjected to power restoration according to the marked power restoration state of the power failure unit according to the levels.
10. An intelligent staging apparatus at a power outage event level comprising a computer device, wherein the computer device is programmed to perform the steps of the method according to any one of claims 1 to 9, or wherein a storage medium of the computer device has stored thereon a computer program programmed to perform the method according to any one of claims 1 to 9.
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| CN112505478A (en) * | 2020-11-17 | 2021-03-16 | 国网山东省电力公司青岛供电公司 | Non-contact type low-voltage transformer area power failure and recovery detection device and power failure and recovery detection method |
| CN112946385B (en) * | 2021-01-29 | 2021-11-16 | 国网浙江省电力有限公司营销服务中心 | Transformer area power failure point positioning method based on circuit breaker |
| CN113591319A (en) * | 2021-08-06 | 2021-11-02 | 广东电网有限责任公司广州供电局 | Method and device for studying and judging metering shunt alarm fault in power grid |
| CN113759165A (en) * | 2021-08-13 | 2021-12-07 | 贵州电网有限责任公司遵义供电局 | Power distribution network fault power failure perception analysis method and equipment |
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