CN109687590B - Grading outage and restoration reporting method and system - Google Patents
Grading outage and restoration reporting method and system Download PDFInfo
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Abstract
The invention discloses a grading outage and restoration reporting method and a grading outage and restoration reporting system, wherein the method comprises the following steps: s1, dividing a power failure and recovery event in a low-voltage distribution network into three stages of power failure and recovery events, and configuring the priority of each stage of power failure and recovery events; s2, arranging power failure and restoration monitoring modules in a transformer area, a key monitoring point and each electric energy meter of the target low-voltage power distribution network respectively, monitoring whether a power failure and restoration event occurs in real time, and sending a power failure and restoration signal when the power failure and restoration event is monitored; s3, sequentially judging whether a power failure and restoration signal is received according to the configured priority sequence, and generating a corresponding level power failure and restoration event for reporting and ending the current reporting when the power failure and restoration signal is judged to be received; the device comprises a grading configuration module, a power failure monitoring module and a grading reporting module. The invention has the advantages of simple realization method, timely reporting, high success rate, convenient positioning of the power failure and recovery position, avoidance of repeated reporting and the like.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a grading outage and restoration reporting method and system.
Background
Aiming at low-voltage distribution network faults, a power supply company mainly depends on a power supply service command platform to perform fault processing, including organization scheduling, work order distribution and the like of power failure emergency repair, but analysis on power failure positions, power failure scale, required personnel strength and emergency repair plan is mainly based on pre-judgment of calls input by users after power failure, so that misjudgment of workload or recovery time is easily caused for subsequent field processing, and the influences of low processing efficiency, high cost, many potential safety hazards and the like are caused. The power utilization information acquisition system is communicated with the power supply service command platform, and the power utilization information acquisition system pushes the power failure events of the low-voltage household meter, the collector, the distribution room master meter or the concentrator in real time, so that the power supply service command platform can be assisted to comprehensively analyze and judge the true and false faults, the fault location, the fault reason, the fault property and the fault range, the fault processing response time is shortened, the cost is reduced, and the customer satisfaction and the system operation index are improved.
A large number of metering and collecting equipment terminals, electric energy meters and collectors are arranged in a low-voltage distribution network, 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, between the terminals and the electric energy meters and between the collectors 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 RS485, and the like.
At present, the reporting of the related events of the electric energy meter is based on the power-off and power-on events before reporting by using running state words in a charged state, namely, the reporting of the power-off and power-on events is determined by the running state of the electric energy meter, and various terminals and collectors in a power distribution network can generate power-off and power-back events, namely, the power-off and power-back events include not only the electric energy meter events, but also collector events and terminal events, and the power-off and power-back events can be single equipment events such as a single electric energy meter, a single collector or a single terminal, or multiple equipment events such as a plurality of electric energy meters, a plurality of collectors or a plurality of terminals, or can be all equipment events of all electric energy meters, all collectors or all terminals The different ranges of the power failure and restoration events have different influence degrees, and when terminal events such as a concentrator occur, if the terminal events are not processed in time, the influences on production, life, personal safety and the like are large.
The method includes that a practitioner sets power failure monitoring equipment in concentrators, collectors and other equipment except for electric energy meters in a power distribution network, when the power failure monitoring equipment monitors that a power failure event occurs, the power failure event is reported to a master station, and then the power failure event can be reported to the master station when the power failure event occurs in the electric energy meters, the concentrators, the collectors and other equipment, but a large number of repeated reporting situations exist in the mode.
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 a grading power failure and power recovery reporting method and system which are simple in implementation method, timely in reporting, high in success rate, convenient for positioning the power failure and power recovery position and capable of avoiding repeated reporting.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a grading power failure reporting method comprises the following steps:
s1, hierarchical configuration: dividing power failure and recovery events in a low-voltage distribution network into a transformer area level, a key monitoring point level and three-level power failure and recovery events of a single meter level, and configuring the priority of each level of power failure and recovery events according to the sequence from high to low;
s2, power failure and restoration monitoring: respectively arranging a power failure and restoration monitoring module in a distribution area, a key monitoring point and each electric energy meter of a target low-voltage distribution network, monitoring whether a power failure and restoration event occurs or not in real time through the power failure and restoration monitoring module, and sending a power failure and restoration signal when the power failure and restoration event is monitored;
s3, graded reporting: and sequentially judging whether power failure and restoration signals from a station area side, a key monitoring point side and each electric energy meter side are received according to the configured priority sequence, and generating a corresponding level power failure and restoration event to report and ending the report of the current power failure and restoration event when the power failure and restoration signals are judged to be received.
As a further improvement of the present invention, the step S3 includes: and judging whether the power failure and restoration signals from the station side are received or not, if so, generating corresponding station level power failure and restoration events to be reported to the main station and ending the current report, otherwise, judging whether the power failure and restoration signals from the key monitoring point side are received or not, if so, generating corresponding key monitoring point level power failure and restoration events to be reported to the main station and ending the current report, otherwise, judging whether the power failure and restoration signals from each electric energy meter side are received or not, and if so, generating corresponding single-meter level power failure and restoration events to be reported to the main station and ending the current report.
As a further improvement of the present invention, in step S2, the power outage and restoration monitoring module is disposed in a concentrator or a configured operation detection terminal, and the power outage and restoration monitoring module is used to monitor whether a power outage and restoration event occurs in the concentrator or the operation detection terminal; in step S3, when the power outage and restoration monitoring module of the concentrator or the operation detection terminal monitors that a power outage and restoration event occurs, the data of the electric meter is acquired to verify that a corresponding station-level power outage and restoration event occurs after the power outage and restoration event, and the corresponding station-level power outage and restoration event is reported to the master station.
As a further improvement of the present invention, in step S2, the method further includes arranging the power failure and restoration monitoring modules on the low-voltage branch lines in the distribution room, respectively, monitoring whether a power failure and restoration event occurs in each low-voltage branch line in real time through the power failure and restoration monitoring modules, and reporting a power failure and restoration signal to the concentrator or the configured operation detection terminal when the power failure and restoration event is monitored; in step S3, when the concentrator or the configured operation detection terminal receives a power outage and restoration signal from the power outage and restoration monitoring module of the low-voltage branch line, a corresponding station-level power outage and restoration event is generated and reported to the master station.
As a further improvement of the present invention, in step S2, a high voltage data collector is further disposed on the high voltage line of the transformer substation, and the data of the high voltage line is collected by the high voltage data collector in real time, in step S3, the concentrator or the configured operation detection terminal collects the operation state of the high voltage data collector in real time, and when it is determined that a power outage and restoration event occurs according to the operation state of the high voltage data collector, a corresponding transformer substation level power outage and restoration event is generated and reported to the master station.
As a further improvement of the present invention, in step S2, a plurality of key monitoring points are set at a required key branch line and a key user, the power failure and restoration monitoring module is respectively arranged at each key monitoring point, the power failure and restoration monitoring module is used to monitor whether a power failure and restoration event occurs at each key monitoring point, and when a power failure event occurs, a power failure and restoration signal is reported to a concentrator or a configured operation detection terminal; in step S3, when the concentrator or the configured operation detection terminal receives a power outage and restoration signal from the power outage and restoration monitoring module of the key monitoring point, a power outage and restoration event at the corresponding key monitoring point level is generated and reported to the master station.
As a further improvement of the present invention, in step S2, the power failure and restoration monitoring modules are respectively arranged in the electric energy meter communication modules, and the power failure and restoration monitoring modules are used to monitor whether a power failure and restoration event occurs in each electric energy meter communication module in real time, when the power failure and restoration event is monitored, the signal state and the communication state of the electric energy meter communication modules are obtained to confirm the power failure and restoration event, and when the power failure and restoration event is confirmed, a power failure and restoration signal of the electric energy meter is generated and reported to the concentrator or the configured collection terminal; in step S3, when the concentrator or the configured collection terminal receives the power meter power failure and restoration signal, a corresponding single-meter-level power failure and restoration event is generated and reported to the master station.
As a further improvement of the present invention, in step S2, the method further includes arranging the power failure and restoration monitoring module in the collector, monitoring whether a power failure and restoration event occurs in the collector in real time through the power failure and restoration monitoring module, when the power failure and restoration event is monitored, confirming the power failure and restoration event according to a communication state between the collector and the electric energy meter, and when the power failure and restoration event is confirmed, generating a power failure and restoration signal of the collector and reporting the power failure and restoration signal to the concentrator or the configured collection terminal; in step S3, when the collector or the configured collection terminal receives the collector power failure signal, a corresponding power failure event is generated and reported to the master station.
As a further improvement of the present invention, the power failure and recovery monitoring module is configured to include an energy storage unit and a monitoring unit that are connected to each other, when the monitoring unit is powered off, the energy storage unit is used to supply power to the monitoring unit, and when the energy storage unit is used to supply power to the monitoring unit for a specified duration, a power failure and recovery event is determined to occur.
A grading power failure reporting system comprises:
the system comprises a grading configuration module, a power failure and restoration event processing module and a power failure and restoration event processing module, wherein the grading configuration module is used for dividing power failure and restoration events in a low-voltage distribution network into a transformer area grade, a key monitoring point grade and a single-meter grade three-grade power failure and restoration event, and configuring the priority of each grade of power failure and restoration event according to the sequence from high to low;
the power failure and restoration monitoring module is respectively arranged in a distribution area, a key monitoring point and each electric energy meter of the target low-voltage distribution network and is used for monitoring whether a power failure and restoration event occurs in real time and sending a power failure and restoration signal when the power failure and restoration event is monitored;
and the grading reporting module is used for sequentially judging whether power failure and recovery signals from the transformer area side, the key monitoring point side and each electric energy meter side are received according to the configured priority sequence, generating a corresponding grade power failure and recovery event to report when the power failure and recovery signals are received, and finishing the report of the current power failure and recovery event.
Compared with the prior art, the invention has the advantages that:
1. the invention divides the power failure and recovery events into three stages by considering the influence degree of the power failure and recovery events in different ranges, monitors the occurrence of the power failure and recovery events in real time by arranging the power failure and recovery monitoring modules, sequentially judges whether the power failure and recovery events occur according to the sequence of the priority, reports the power failure and recovery events once the power failure and recovery events occur, and simultaneously ends the current report to shield the reports of the power failure and recovery events with other lower priority.
2. According to the invention, the occurrence of the power failure and recovery events at all levels is sequentially judged according to the priority order, and the power failure and recovery events are reported when the power failure and recovery occurs, so that the power failure and recovery events can be reported in a grading manner according to the influence degree for timely processing, the loss caused by power failure and recovery is reduced, the repeated reporting of the same power failure and recovery event can be avoided, and the occurrence position of the power failure and recovery can be conveniently and accurately positioned on the basis of the grading reporting.
3. The invention further discloses a method for reporting the power failure and recovery events of the transformer area caused by transformer faults in time by arranging the power failure and recovery monitoring modules in a concentrator or a configured operation detection terminal according to the reason of the power failure and recovery of the whole transformer area, the power failure and recovery events of the transformer area caused by the low-voltage branch lines can be reported in time by arranging the power failure and recovery monitoring modules at the output ends of the low-voltage branch lines and reporting the power failure and recovery events to a main station by the concentrator or the operation detection terminal, and the power failure and recovery events of the transformer area caused by the high-voltage line faults can be reported in time by arranging the high-voltage data collector on the high-voltage line and collecting the operation state of the high-voltage data collector by the concentrator or the operation detection terminal in real time.
4. The invention further arranges the power failure and restoration monitoring module at each key monitoring point, and reports the power failure and restoration events to the master station when each key monitoring point has power failure, thereby realizing the timely reporting of the power failure and restoration events of key branch lines, key users and the like of the key monitoring points in the power distribution network; the power failure and recovery monitoring module is arranged in the electric energy meter communication module, and the signal state and the communication state of the electric energy meter communication module are combined to effectively judge whether the power failure and recovery of the electric energy meter occurs or not, confirm that the power failure and recovery event occurs and report to the concentrator or the acquisition terminal in real time, and report to the master station by the concentrator or the acquisition terminal. And the single-meter-level power failure and restoration event can be reported in time.
5. The invention realizes three-level online monitoring of the power supply state from the transformer area to the household meter and reporting of the power failure event by taking the original concentrator, the electric energy meter and the collector of the transformer area as the basis and assisting the monitoring equipment of the key monitoring point and combining the active reporting of the power failure event and the study and judgment of the power failure fault of the collection master station, solves the instant reporting of the event after the power failure, can fully utilize the collection advantages of the power utilization information collection system, is deeply combined with the power supply service command platform, converts 'passive emergency maintenance' into 'active operation and maintenance', further solves the problem of 'last kilometer' of the power supply service, and comprehensively improves the service response speed and the distribution network operation management level.
Drawings
Fig. 1 is a schematic flow chart of an implementation of the hierarchical outage and restoration reporting method according to this embodiment.
Fig. 2 is a schematic diagram of an implementation flow for implementing the reporting of the station level outage and restoration in this embodiment.
Fig. 3 is a schematic diagram of a first implementation flow of reporting a carrier wave table in power failure in this embodiment.
Fig. 4 is a schematic diagram of a second implementation flow for reporting a carrier table during power failure in this embodiment.
Fig. 5 is a schematic diagram of a first implementation flow for reporting the power failure of the RS485 table under the collector in this embodiment.
Fig. 6 is a schematic diagram of a second implementation process for reporting the power failure of the RS485 table by the collector 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 step of the hierarchical outage and restoration reporting method in this embodiment includes:
s1, hierarchical configuration: dividing the power failure and restoration events in the low-voltage distribution network into three levels of power failure and restoration events of a transformer area level, a key monitoring point level and a single meter level, and configuring the priority of each level of power failure and restoration events according to the sequence from high to low;
s2, power failure and restoration monitoring: respectively arranging a power failure and power restoration monitoring module in a distribution area, a key monitoring point and each electric energy meter of a target low-voltage distribution network, monitoring whether a power failure and power restoration event occurs or not in real time through the power failure and power restoration monitoring module, and sending a power failure and power restoration signal when the power failure and power restoration event is monitored;
s3, graded reporting: and sequentially judging whether power failure and restoration signals from the transformer area side, the key monitoring point side and each electric energy meter side are received according to the configured priority sequence, and generating a corresponding level power failure and restoration event to report and ending the report of the current power failure and restoration event when judging that the power failure and restoration signals are received.
In the embodiment, the influence degrees of power failure and restoration events in different ranges are considered, the power failure and restoration events are divided into three levels, namely a station area level power failure and restoration event, a key monitoring point level power failure and restoration event and a single-meter level power failure and restoration event, wherein the station area level power failure and restoration event has the highest priority, the key monitoring point level power failure and restoration event has the lowest priority, and the single-meter level power failure and restoration event has the lowest priority, aiming at the three levels of power failure and restoration events, the occurrence of the power failure and restoration events is monitored in real time by arranging the power failure and restoration monitoring modules, whether the power failure and restoration events occur or not is judged in sequence according to the priority, once the power failure and restoration events occur is judged, the reporting is carried out, the current reporting is ended to shield the reporting of the power failure and restoration events with other lower priorities, the timely reporting of the power failure and restoration events in different coverage ranges can be supported, the problem of the immediate reporting of the events after the power failure of the low-voltage acquisition terminal is solved, and a large number of repeated reporting can be avoided, ensuring the success of reporting.
The specific configuration of this embodiment enables a single-node event report of a communication network to have an active reporting mechanism, where peripheral nodes that have not been powered off receive a power failure event (such as a communication address of a power failure node) of a power failure node, and in a current terminal data acquisition state or an idle state, forward and report the power failure event step by step to a terminal local communication module, where the terminal local communication module reports the power failure event to a terminal, and finally the terminal reports the power failure event to a master station based on the three-level power failure and restoration events in a hierarchical manner.
In this embodiment, the step S3 specifically includes: and judging whether a power failure and restoration signal from the station side is received or not, if so, generating a corresponding station level power failure and restoration event to report to the main station and ending the current report, otherwise, judging whether a power failure and restoration signal from the key monitoring point side is received or not, if so, generating a corresponding key monitoring point level power failure and restoration event to report to the main station and ending the current report, otherwise, judging whether a power failure and restoration signal from each electric energy meter side is received or not, and if so, generating a corresponding single-meter level power failure and restoration event to report to the main station and ending the current report. The occurrence of the power failure and recovery events at all levels is sequentially judged according to the priority order, and the power failure and recovery events are reported when the power failure and recovery occurs, so that the power failure and recovery events can be reported in a grading manner according to the influence degree for timely processing, the loss caused by power failure and recovery is reduced, meanwhile, the repeated reporting of the same power failure and recovery event can be avoided, and the occurrence position of the power failure and recovery can be conveniently and accurately positioned on the basis of the grading reporting.
The power outage of the station area caused by distribution transformation faults, line faults and the like has a large influence on production, life, personal safety and the like, and is also the most urgent power outage condition for maintenance.
For the power outage and restoration event in the distribution room, in step S2, a power outage and restoration monitoring module is specifically arranged in the concentrator or the configured operation detection terminal, and the power outage and restoration monitoring module is used to monitor whether the power outage and restoration event occurs in the concentrator or the operation detection terminal; in step S3, when the power outage and restoration monitoring module of the concentrator or the operation detection terminal detects that a power outage and restoration event occurs, the data of the electric meter is acquired to verify that a corresponding district-level power outage and restoration event occurs and is reported to the master station. In this embodiment, the local communication module of the outage and restoration monitoring module is configured in the concentrator or the configured operation detection terminal, and since the priority of the station-level outage and restoration event is highest, the meter data is acquired when the power failure occurs, the power failure event is verified and reported to the system master station after the power failure event actually occurs, and the station outage and restoration event caused by the transformer failure and the like can be reported in time.
For the power outage and restoration event of the transformer area, in step S2 of this embodiment, a power outage and restoration monitoring module is specifically disposed on each low-voltage branch line of the transformer area, and the power outage and restoration monitoring module monitors whether the power outage and restoration event occurs in each low-voltage branch line in real time, and reports a power outage and restoration signal to a concentrator or a configured operation detection terminal when the power outage and restoration event is monitored; in step S3, when the concentrator or the configured operation detection terminal receives a power outage and restoration signal from the power outage and restoration monitoring module of the low-voltage branch line, a corresponding station-level power outage and restoration event is generated and reported to the master station. In this embodiment, the power failure monitoring modules are arranged in the low-voltage branch lines, specifically at the output ends of the low-voltage branch switches, and report the power failure to the concentrator or the operation detection terminal when the power failure occurs, and the power failure to the main station is reported by the concentrator or the operation detection terminal based on the highest priority, so that the power failure to the main station.
For the power outage and restoration event of the transformer area, in step S2, a high voltage data collector is further disposed on the high voltage line of the transformer area, and data of the high voltage line is collected in real time by the high voltage data collector, in step S3, the operation state of the high voltage data collector is collected in real time by a concentrator or a configured operation detection terminal, and when the occurrence of the power outage and restoration event is determined according to the operation state of the high voltage data collector, a corresponding transformer area level power outage and restoration event is generated and reported to the master station. In this embodiment, the high-voltage data collector is arranged on the high-voltage line, the concentrator or the operation detection terminal collects the operation state of the high-voltage data collector in real time, and the operation state is reported to the main station based on the highest priority when the power failure occurs, so that a power failure and recovery event of the transformer area caused by the high-voltage line failure can be reported in time.
The concentrator can receive the signals of the power failure and restoration monitoring module or the high-voltage data acquisition unit and report the signals to the main station, and the operation detection terminal can also be additionally configured to receive the signals of the power failure and restoration monitoring module and report the signals to the main station, and can specifically adopt an intelligent operation terminal.
In this embodiment, the three types of power outage and restoration events are divided according to the overall power outage and restoration of the transformer area and the characteristics of each type of event are reported, so that the timely reporting of the transformer area level power outage and restoration events can be realized.
In this embodiment, the power failure and restoration monitoring module is configured to include an energy storage unit and a monitoring unit that are connected to each other, and when the monitoring unit is powered off, the energy storage unit is used for determining that a power failure and restoration event occurs to the monitoring unit when the energy storage unit continuously supplies power to the monitoring unit for a specified length. The power failure and recovery monitoring module specifically adopts monitoring equipment with a super capacitor, the monitoring equipment can be a collector, an electric energy meter or special equipment, a power failure event is generated after the monitoring point is powered off, and if the duration of the super capacitor for continuously supplying power to the monitoring equipment exceeds a certain threshold value, the power failure and recovery event can be judged to occur.
In a specific application embodiment, the power outage and restoration events in the transformer area are specifically divided into the following three types, and the reporting flow of each type of event is specifically as follows:
(1) complete station area outage and restoration caused by 10kV line fault
The method comprises the steps that a high-voltage data collector unit is installed on a 10kV high-voltage line, the operation working condition of the high-voltage data collector unit is collected in real time through a wireless channel by a concentrator/operation detection terminal, and after a 10kV power failure event is sent, the concentrator/operation detection terminal reports the station area power failure event caused by the 10kV power failure line problem to a system main station.
(2) Station area power failure caused by low-voltage branch switch abnormity
A branch monitoring device with a super capacitor is installed at the output end of a low-voltage branch switch of a power distribution room, the state and the tripping reason (such as overload, short circuit, grounding and the like) of the low-voltage switch are collected in real time, when a power failure event is found, the power failure event is reported to a concentrator/operation detection terminal through a carrier/wireless channel, and the concentrator/operation detection terminal reports the station branch tripping event and the tripping reason to a system main station.
(3) Station area outage and restoration caused by transformer fault and the like
Under the conditions that the 10kV side normally operates and the transformer side branch switch is not tripped, the transformer fault can also cause power failure in a transformer area, and the concentrator/operation detection terminal also loses power, so that a local communication module with a super capacitor is arranged in the concentrator/operation detection terminal to detect the occurrence of a power failure and recovery event, and the concentrator/operation detection terminal communicates with a user side electric energy meter or a collector through a local channel when the power failure occurs, and reports the power failure event to a system main station after the power failure event is verified to actually occur.
In the specific application embodiment of the invention, aiming at a station area level power failure event, a monitoring device with a super capacitor is added to a concentrator communication module, or an operation detection device is added, an auxiliary power failure operation detection device is added to a main branch of a station area, a super capacitor is arranged in the operation detection device, a communication module with two channels of carrier waves/micropower is arranged in the operation detection device, concentrator software and main station software are upgraded, so as to report the power failure event according to the flow shown in fig. 2, namely when the operation detection device is powered off, the monitoring device with the super capacitor senses the power failure occurrence and reports the power failure occurrence to the concentrator or the operation detection device, the concentrator or the operation detection device judges whether data can be read to confirm the power failure event, reports the power failure event to the main station after confirming the power failure event occurrence, when the concentrator or the operation detection device is powered off, the built-in super capacitor provides power for a certain duration (such as 15 s), and judging whether the data can be read to confirm the power failure and restoration event, and reporting the power failure and restoration event to the master station after confirming the occurrence of the power failure and restoration event.
For the key monitoring point level power failure and restoration event, in step S2, a plurality of key monitoring points are set at a required key branch line and a key user, a power failure and restoration monitoring module is respectively arranged at each key monitoring point, whether a power failure and restoration event occurs at each key monitoring point is monitored by the power failure and restoration monitoring module, and a power failure and restoration signal is reported to a concentrator or a configured operation detection terminal when a power failure event is monitored; in step S3, when the concentrator or the configured operation detection terminal receives a power outage and restoration signal from a power outage and restoration monitoring module of a key monitoring point, a corresponding key monitoring point level power outage and restoration event is generated and reported to the master station. By arranging the power failure and restoration monitoring modules at the key monitoring points, the power failure and restoration events of the key monitoring points of key branch lines, key users and the like in the power distribution network can be reported to the master station in time when the power failure occurs at the key monitoring points.
In the embodiment, monitoring equipment with a super capacitor is installed at a key monitoring point to detect the occurrence of a power failure and recovery event, the monitoring equipment can be a collector, an electric energy meter or special equipment, a power failure event is generated after the monitoring point is powered off, a terminal local communication module is configured with the super capacitor, and the super capacitor is communicated with the monitoring equipment after the power failure to acquire the power failure event and report the power failure event to a system main station.
In step S2, a power failure and restoration monitoring module is respectively disposed in each communication module of the electric energy meter, and the power failure and restoration monitoring module monitors whether a power failure and restoration event occurs in each communication module of the electric energy meter in real time, when the power failure and restoration event is monitored, the signal state and the communication state of the communication module of the electric energy meter are obtained to confirm the power failure and restoration event, and when the power failure and restoration event is confirmed, a power failure and restoration signal of the electric energy meter is generated and reported to a concentrator or a configured collection terminal; in step S3, when the concentrator or the configured collection terminal receives the power meter power failure and restoration signal, a corresponding single-meter-level power failure and restoration event is generated and reported to the master station. The power failure and recovery monitoring module is arranged in the electric energy meter communication module, and the signal state and the communication state of the electric energy meter communication module are combined to effectively judge whether the power failure and recovery of the electric energy meter occurs or not, so that the power failure and recovery event is reported to the concentrator or the acquisition terminal when the power failure and recovery event occurs, and the concentrator or the acquisition terminal reports the power failure and recovery event to the master station. In a specific application embodiment, for a single-meter-level power failure and restoration event, the reporting may be performed only when the number of faulty electric energy meters reaches a certain number, and the reporting may not be performed when only a few electric energy meters have a power failure and restoration event, so as to reduce unnecessary reporting.
In the specific application embodiment of the invention, the following two schemes are adopted for reporting the single-meter-level outage and restoration of the carrier meter:
scheme 1: adding a super capacitor to a communication module, upgrading software of a communication module of a concentrator and software of a master station, reporting a power failure and restoration event according to the flow shown in figure 3, when a carrier meter is powered off, sensing power failure by a monitoring device with the super capacitor arranged in the communication module of the electric energy meter, judging that the power supply of the super capacitor lasts for a specified time (15 s) or more, acquiring a zero-crossing signal and a serial port communication state of the communication module of the electric energy meter, confirming whether the power failure occurs according to the zero-crossing signal and the serial port communication state, specifically judging power failure and restoration according to whether the zero-crossing signal is missing, judging that the power failure event occurs by means of the level of a weak current pin of the module and the communication of the electric energy meter, generating power failure information of the electric energy meter if the power failure occurs, and reporting the power failure information to the concentrator after the communication module automatically acquires the power failure information, and reporting the data to a master station by the concentrator, calling the data of the electric energy meter by the master station for verification to prevent false reporting, and carrying out time processing after confirmation.
Scheme 2: a carrier-micropower wireless dual-channel module is additionally adopted, monitoring equipment with a super capacitor is additionally arranged in a communication module, communication module software, concentrator communication module software and master station software are upgraded, and a power failure and restoration event is reported according to the flow shown in fig. 4.
In step S2 of this embodiment, the method further includes arranging a power failure and restoration monitoring module in the collector, monitoring whether a power failure and restoration event occurs in the collector in real time through the power failure and restoration monitoring module, confirming the power failure and restoration event according to a communication state between the collector and the electric energy meter when the power failure and restoration event is monitored, and generating a power failure and restoration signal of the collector to report to the concentrator or the configured collection terminal when the power failure and restoration event is confirmed; in step S3, when the concentrator or the configured collection terminal receives the collector power outage signal, a corresponding power outage event is generated and reported to the master station. For the single-user power failure and recovery event of the collector, the power failure and recovery monitoring module is arranged in the collector, so that the power failure and recovery event can be reported to the concentrator or the configured collection terminal in time when the power failure and recovery occurs, and the concentrator or the configured collection terminal determines whether to report to the master station.
In a specific application embodiment, the invention reports the power failure of a single user of an RS485 meter under a collector by adopting the following two schemes:
scheme 1: the method comprises the steps that an original I type collector communication module/II type collector is changed into a three-phase power connection mode, monitoring equipment with a super capacitor is added, collector communication chip software, collector software upgrading, concentrator communication module software, concentrator software and master station software are upgraded, reporting is carried out according to the flow shown in the figure 5, when the RS485 meter is powered off, the monitoring equipment with the super capacitor built in the collector senses the power off, the collector acquires the information of the power-down ammeter to generate power-down information, a terminal communication module automatically acquires the power-down information, reports the power-down information to a concentrator, and the concentrator confirms whether the power-down information is reported to a master station or not.
Scheme 2: at the moment of power failure of the electric energy meter, the electric energy meter only maintains basic operations such as display, key pressing and the like at the moment of power failure, and cannot automatically report the power failure state of the electric energy meter, so that the electric energy meter can only be polled by virtue of a concentrator to diagnose the power failure event, but false alarm caused by 485 line fault can occur in the mode, and error-free report of the power failure event is realized by installing a communication module on the electric energy meter or adding a device capable of realizing power failure communication at a meter end.
According to the scheme, a super capacitor or a newly-added operation detection device is added to a concentrator communication module, auxiliary power failure operation detection devices are installed on each ammeter phase, the super capacitor is arranged in each operation detection device, a communication module with two channels of carrier waves/micropower is arranged in each operation detection device, concentrator software and main station software are upgraded, reporting is carried out according to the flow shown in the figure 6, when the operation detection devices sense power failure, the concentrators or the operation detection devices judge whether data can be read or not to confirm the occurrence of a power failure event, and when the occurrence of the power failure event is confirmed, the concentrator or the operation detection devices report the power failure event to the main station.
In the embodiment, a carrier and micropower dual channel is arranged in a concentrator carrier module and an electric energy meter communication module, a super capacitor is arranged in the concentrator carrier module and the electric energy meter communication module, a communication power supply of 60s can be maintained after power failure, the electric energy meter communication module can directly report power failure and recovery events to the concentrator or report the power failure and recovery events to the concentrator by means of surrounding nodes, the concentrator reports the power failure and recovery events to an acquisition master station through a GPRS (general packet radio service), and the reporting mechanism is used for reporting after the power failure and recovery events are sensed by the built-in super capacitor, so that the reporting of the power failure and recovery events in different coverage ranges can be supported.
According to the reporting method, the original concentrator, the electric energy meter and the collector of the transformer area are taken as the basis, the monitoring equipment of the key monitoring point is used as the auxiliary, the active reporting of the power failure event and the study and judgment of the power failure fault of the collection main station are combined, the three-level online monitoring of the power supply state from the transformer area to the household meter and the reporting of the power failure event are realized, the instant reporting of the event after the power failure is solved, the collection advantages of the power utilization information collection system can be fully utilized, the deep combination with the power supply service command platform is realized, the 'passive emergency repair' is converted into 'active operation and maintenance', the problem of 'last kilometer' of the power supply service is further solved, and the service response speed and the distribution network operation management level are comprehensively improved.
In the embodiment, a collision avoidance mechanism is further configured in the local communication channel, that is, a collision detection/collision avoidance mechanism is required for reporting a multi-node event in the communication network, and by adding the collision detection/collision avoidance mechanism, the probability of mutual collision of event reporting signals can be reduced and the success rate of event reporting can be improved when a large number of nodes report the event at the same time under a limited communication channel bandwidth.
The present embodiment further provides a system for reporting a power failure in a hierarchical manner, including:
the system comprises a grading configuration module, a power failure and restoration event processing module and a power failure and restoration event processing module, wherein the grading configuration module is used for dividing power failure and restoration events in a low-voltage distribution network into a transformer area grade, a key monitoring point grade and a single-meter grade three-grade power failure and restoration event, and configuring the priority of each grade of power failure and restoration event according to the sequence from high to low;
the power failure and restoration monitoring module is respectively arranged in a distribution area, a key monitoring point and each electric energy meter of the target low-voltage distribution network and is used for monitoring whether a power failure and restoration event occurs in real time and sending a power failure and restoration signal when the power failure and restoration event is monitored;
and the grading reporting module is used for sequentially judging whether power failure and recovery signals from the transformer area side, the key monitoring point side and each electric energy meter side are received according to the configured priority sequence, and generating a corresponding grade power failure and recovery event and reporting when the power failure and recovery signals are judged to be received.
The hierarchical power outage and restoration reporting system of this embodiment corresponds to the hierarchical power outage and restoration reporting method and has the same principle, which is not described herein again.
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. A grading outage and restoration reporting method is characterized by comprising the following steps:
s1, hierarchical configuration: dividing the power failure and restoration events in the low-voltage distribution network into three levels of power failure and restoration events of a transformer area level, a key monitoring point level and a single meter level, and configuring the priority of each level of power failure and restoration events according to the sequence from high to low;
s2, power failure and restoration monitoring: respectively arranging a power failure and restoration monitoring module in a distribution area, a key monitoring point and each electric energy meter of a target low-voltage distribution network, monitoring whether a power failure and restoration event occurs or not in real time through the power failure and restoration monitoring module, and sending a power failure and restoration signal when the power failure and restoration event is monitored;
s3, graded reporting: and sequentially judging whether power failure and restoration signals from a station area side, a key monitoring point side and each electric energy meter side are received according to the configured priority sequence, and generating a corresponding level power failure and restoration event to report and ending the report of the current power failure and restoration event when the power failure and restoration signals are judged to be received.
2. The method according to claim 1, wherein the step S3 includes: and judging whether the power failure and restoration signals from the station side are received or not, if so, generating corresponding station level power failure and restoration events to be reported to the main station and ending the current report, otherwise, judging whether the power failure and restoration signals from the key monitoring point side are received or not, if so, generating corresponding key monitoring point level power failure and restoration events to be reported to the main station and ending the current report, otherwise, judging whether the power failure and restoration signals from each electric energy meter side are received or not, and if so, generating corresponding single-meter level power failure and restoration events to be reported to the main station and ending the current report.
3. The method according to claim 1, wherein in step S2, the power outage and restoration monitoring module is disposed in a concentrator or a configured operation detection terminal, and the power outage and restoration monitoring module monitors whether a power outage and restoration event occurs in the concentrator or the operation detection terminal; in step S3, when the power outage and restoration monitoring module of the concentrator or the operation detection terminal detects that a power outage and restoration event occurs, the data of the electric meter is acquired to verify that a corresponding platform-level power outage and restoration event is generated after the power outage and restoration event is verified, and the corresponding platform-level power outage and restoration event is reported to the master station.
4. The graded outage and restoration reporting method according to claim 3, wherein: in step S2, the method further includes arranging the power failure and restoration monitoring modules on the low-voltage branch lines of the distribution room, monitoring whether a power failure and restoration event occurs in each low-voltage branch line in real time through the power failure and restoration monitoring modules, and reporting a power failure and restoration signal to a concentrator or a configured operation detection terminal when the power failure and restoration event is monitored; in step S3, when the concentrator or the configured operation detection terminal receives a power outage and restoration signal from the power outage and restoration monitoring module of the low-voltage branch line, a corresponding station-level power outage and restoration event is generated and reported to the master station.
5. The method according to claim 4, wherein in step S2, the method further includes arranging a high voltage data collector on the high voltage line of the transformer substation, and collecting data of the high voltage line in real time by the high voltage data collector, in step S3, the concentrator or a configured operation detection terminal collects the operation state of the high voltage data collector in real time, and when it is determined that a power outage event occurs according to the operation state of the high voltage data collector, a corresponding transformer substation-level power outage event is generated and reported to the master station.
6. The method according to any one of claims 1 to 5, wherein in step S2, a plurality of key monitoring points are set at a required key branch line and a key user, the power outage and restoration monitoring modules are respectively arranged at each key monitoring point, the power outage and restoration monitoring modules are used to monitor whether a power outage and restoration event occurs at each key monitoring point, and when a power outage event is monitored, a power outage and restoration signal is reported to a concentrator or a configured operation detection terminal; in step S3, when the concentrator or the configured operation detection terminal receives a power outage and restoration signal from the power outage and restoration monitoring module of the key monitoring point, a power outage and restoration event at the corresponding key monitoring point level is generated and reported to the master station.
7. The method according to any one of claims 1 to 5, wherein in step S2, the power outage and restoration monitoring modules are respectively arranged in the electric energy meter communication modules, the power outage and restoration monitoring modules are used to monitor whether a power outage and restoration event occurs in each electric energy meter communication module in real time, when the power outage and restoration event is monitored to occur, the signal state and the communication state of the electric energy meter communication modules are obtained to confirm the power outage and restoration event, and when the power outage and restoration event is confirmed to occur, a power outage and restoration signal is generated and reported to a concentrator or a configured collection terminal; in step S3, when the concentrator or the configured collection terminal receives the power failure and recovery signal of the electric energy meter, a corresponding single-meter-level power failure and recovery event is generated and reported to the master station.
8. The graded power failure and restoration reporting method according to any one of claims 1 to 5, wherein in the step S2, the method further comprises arranging a power failure and restoration monitoring module in the collector, monitoring whether a power failure and restoration event occurs in the collector in real time through the power failure and restoration monitoring module, confirming the power failure and restoration event according to a communication state of the collector and the electric energy meter when the power failure and restoration event is monitored, and generating a power failure and restoration signal of the collector to report to a concentrator or a configured collection terminal when the power failure and restoration event is confirmed; in step S3, when the collector or the configured collection terminal receives the collector power outage signal, a corresponding power outage event is generated and reported to the master station.
9. The graded power failure and restoration reporting method according to any one of claims 1 to 5, wherein the power failure and restoration monitoring module is configured to include an energy storage unit and a monitoring unit which are connected with each other, when the monitoring unit is powered off, the energy storage unit supplies power to the monitoring unit, and when the energy storage unit supplies power to the monitoring unit for a specified duration, it is determined that a power failure and restoration event occurs.
10. A grading outage and restoration reporting system is characterized by comprising:
the system comprises a grading configuration module, a power failure and restoration event processing module and a power failure and restoration event processing module, wherein the grading configuration module is used for dividing power failure and restoration events in a low-voltage distribution network into a transformer area grade, a key monitoring point grade and a single-meter grade three-grade power failure and restoration event, and configuring the priority of each grade of power failure and restoration event according to the sequence from high to low;
the power failure and recovery monitoring module is respectively arranged in a distribution area, a key monitoring point and each electric energy meter of the target low-voltage distribution network and is used for monitoring whether a power failure and recovery event occurs in real time and sending a power failure and recovery signal when the power failure and recovery event is monitored;
and the grading reporting module is used for sequentially judging whether power failure and recovery signals from the transformer area side, the key monitoring point side and each electric energy meter side are received according to the configured priority sequence, generating a corresponding grade power failure and recovery event to report when the power failure and recovery signals are received, and finishing the report of the current power failure and recovery event.
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| CN110244163B (en) * | 2019-06-20 | 2022-03-11 | 国网湖南省电力有限公司 | Intelligent stage-level studying and judging method and device for power failure and recovery events of transformer area |
| CN110673079B (en) * | 2019-08-23 | 2021-12-14 | 北京中电飞华通信股份有限公司 | Platform district end sensing system and method |
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