CN108152578B - Method for actively reporting and studying and judging power failure events of intelligent electric energy meter in transformer area - Google Patents
Method for actively reporting and studying and judging power failure events of intelligent electric energy meter in transformer area Download PDFInfo
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- CN108152578B CN108152578B CN201711350536.6A CN201711350536A CN108152578B CN 108152578 B CN108152578 B CN 108152578B CN 201711350536 A CN201711350536 A CN 201711350536A CN 108152578 B CN108152578 B CN 108152578B
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- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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Abstract
The invention discloses a method for actively reporting and studying and judging a power failure event of an intelligent electric energy meter in a transformer area, which is characterized in that a super capacitor in a high-speed dual-mode communication unit is used for supplying power to the communication unit within 60 seconds after power failure, and the power failure event of the intelligent electric energy meter is actively reported by using an expansion part in a micropower wireless interconnection and intercommunication expansion protocol generated by the communication unit. The method comprises the steps of judging the phase of the intelligent power meter with power failure according to the actual power failure reporting condition of a power distribution area and combining a carrier zero-crossing phase recognition technology in a dual-mode communication unit, providing a reasonable research and judgment method by utilizing the power failure events and phase failure events of a concentrator, accurately judging the power failure events of the whole power distribution area, the power failure events of a certain phase, the power failure events of a certain building (unit) and the power failure events of a single (number) user, and further providing technical support for the active emergency maintenance of a power supply company.
Description
Technical Field
The invention belongs to the technical field of intelligent electric meters, and particularly relates to a method for actively reporting and studying and judging power failure events of an intelligent electric meter in a transformer area.
Background
The Australian SGSPAA company supports the super capacitor in the intelligent electric meter for 15 seconds after the intelligent electric meter loses power, reports the power failure information of the intelligent electric meter to the power failure management system by using the last gas, provides technical support for timely rush repair of distribution network operation and maintenance personnel, improves power supply reliability, reduces potential safety hazards caused by failure continuation to people and equipment, and reduces customer complaints. Although the current intelligent electric meter in China has a battery, the battery only supports the function of power failure meter reading, and can not actively report the power failure event of the intelligent electric meter, if the function needs to be realized, the original intelligent electric meter needs to be modified and upgraded (namely, the meter is changed) in software and hardware, so that the function of actively reporting the power failure event of the intelligent electric meter can not be realized by depending on the existing intelligent electric meter.
Disclosure of Invention
The invention aims to provide a method for actively reporting and studying and judging a power failure event of an intelligent electric energy meter in a transformer area, so as to solve the technical problem.
When a power failure event occurs to the intelligent electric energy meter, the communication module of the intelligent electric energy meter detects that the power supply voltage between the intelligent electric energy meter and the communication module is 0V through a hardware interface, the communication module maintains work by utilizing the electric quantity stored by the super capacitor to generate the power failure event of the intelligent electric energy meter, the power failure event information of the intelligent electric energy meter is actively reported to the communication module of the concentrator through a micropower wireless channel, the communication module of the concentrator transmits the power failure event of the intelligent electric energy meter to the concentrator through an interface of the concentrator, and finally the concentrator uploads the power failure event to the power utilization information acquisition system through a wireless public network.
In order to achieve the purpose, the invention adopts the following technical scheme:
the method for actively reporting and studying and judging the power failure event of the intelligent electric energy meter in the transformer area comprises the following steps:
the method for reporting the power failure event of a certain single/several users comprises the following steps: aiming at power failure of a certain single/several users, adding a path data field for collecting the information of the designated node in a data structure only containing the information collection grouping of the designated node; when the network management center establishes a node for appointed information collection to send an information collection message packet, a path node message in the information collection message packet is also established at the same time; when the information collection message packet is transmitted according to a specified path, all intermediate nodes passing by the information collection message packet are forced to analyze the transit information collection message packet; if the information collection grouping time value of the transit information collection message grouping is lower than the waiting time of two-time information collection of the nodes, namely the new data collection time of the transit nodes of the information collection grouping is not reached, the transit message analysis node directly propagates the transit information collection message grouping continuously; if the information collection grouping time value of the transit information collection message grouping is larger than the waiting time of the two-time information collection of the node, the transit message analysis node packages the locally collected information and marks the collected information grouping according to the local node ID, and once the collected information system grouping of the lower-level node passes through the transit return of the local node, the collected information grouping packaged by the node is directly carried in the transit return message grouping;
the power failure reporting method of the intelligent electric meters comprises the following steps: adding a path data field of a designated reporting node in a data structure only containing a designated node reporting information packet; when the central node sends the report message packet to the appointed report node, the path node message in the report message packet is sent out incidentally; analyzing the transit reporting message groups by all the intermediate data acquisition nodes passing the reporting message groups; if the local node resident message needs to report data, the transit message analysis node carries the reported information of the local node besides continuously transmitting the transit message group; if the local node resident message does not need to report data, the transit message analysis node directly passes through the report message packet transit;
the judging method comprises the following steps: and judging the type of the power failure according to the reported information.
Further, in a reporting method of a power failure event of a certain single/several users, a function of recording power failure reporting information of a neighbor node is added at an electric energy meter module end: all electric energy meter module ends record the received state information reported by the power failure of the neighbor node; when the neighbor node serves as a routing relay node which actively reports the emergency power failure, the neighbor node reports the recorded emergency power failure information of the neighbor node to the central node.
Further, the judging method comprises the following steps:
1) single user power meter power failure
The single-user electric energy meter has no other electric energy meters to report the power failure event within 5 minutes of the concentrator, and the electric energy meter is directly judged to be an effective power failure event;
2) single-phase multi-family electric energy meter power cut
Firstly, checking the phase of the electric energy meters, if the electric energy meters are in the same phase, checking whether the concentrator reports a phase failure event, and if the electric energy meters do not report the phase failure event, judging that the electric energy meters have power failure and other electric energy meters of the phase are suspected to have power failure conditions; if the phase failure event exists, judging that the electric energy meter has power failure and other electric meters in the phase have power failure conditions;
3) power failure of multiphase multi-family electric energy meter
Firstly, checking the phase of the electric energy meter, and if the phase is multiphase, checking whether the concentrator reports a power failure event; if no concentrator has no power failure event, judging that the electric energy meters have power failure and other electric energy meters are suspected to have power failure conditions; if the concentrator has a power failure event, judging that the whole area has power failure;
4) concentrator power outage event
And if a power failure event occurs in the concentrator and the power failure event is reported to the intelligent electric meter under the concentrator, judging that the whole area has power failure.
Furthermore, a communication circuit is arranged in the electric energy meter, and a certain single/several-household power failure event report and a piece of intelligent electric meter power failure report are carried out through the communication circuit.
Compared with the prior art, the invention has the following beneficial effects: the invention provides a novel method for realizing timely reporting of power consumption information acquisition system master station of power failure events of an electric energy meter without replacing the intelligent electric energy meter, aiming at the problem of active reporting of the power failure events of the intelligent electric energy meter. The method utilizes the super capacitor in the high-speed dual-mode communication unit to supply power to the communication unit within 60 seconds after power failure, and utilizes the expansion part in the micropower wireless interconnection and intercommunication expansion protocol to actively report the power failure event of the intelligent electric energy meter generated by the communication unit; the method comprises the steps of judging the phase of the intelligent power meter with power failure according to the actual power failure reporting condition of a power distribution area and combining a carrier zero-crossing phase recognition technology in a dual-mode communication unit, providing a reasonable research and judgment method by utilizing the power failure events and phase failure events of a concentrator, accurately judging the power failure events of the whole power distribution area, the power failure events of a certain phase, the power failure events of a certain building (unit) and the power failure events of a single (number) user, and further providing technical support for the active emergency maintenance of a power supply company.
Drawings
FIG. 1 is a schematic structural diagram of a communication circuit of an electric energy meter;
FIG. 2 is a schematic diagram illustrating reporting of a power outage event of a single (or several) household;
FIG. 3 is a schematic diagram of reporting of power failure of the intelligent electric meter in pieces.
Detailed Description
1: dual-mode communication unit added with super capacitor and capacitor selection type
The method for reporting the fault by using the super capacitor after the power failure, which is provided by the invention, is characterized in that the whole equipment cannot work due to sudden power failure, so that the key points of hardware upgrading are to immediately detect the power failure and increase the energy storage of the super capacitor, and the requirement that the working time can be maintained for 60 seconds after the power failure is met, the method relates to the fact that the power failure detection and the energy storage of the super capacitor are increased on the basis of the original circuit of an electric energy meter communication module, and relates to the change of the original power supply circuit, and the electrical schematic diagram of a specific changed part is shown in figure 1:
the working principle of the power failure reporting circuit of the electric energy meter communication module is as follows:
as shown in fig. 1, the voltage of a 12V power supply is reduced to 5.2V through a DC-DC conversion chip U100, the power supply is connected to the positive terminal of a super capacitor C134 through a schottky diode D109 (preventing current reversal), a current limiting resistor R127 and a current limiting resistor R158, the charging current is limited to 100mA, a power failure detection circuit is connected to an I/O port of a single chip microcomputer after being divided by R159 and R160 for judgment, when the electric meter is powered off, the output of the U100 terminal is 0V, the super capacitor C134 supplies power to a module through D110, and meanwhile, the output of the U100 is detected to be 0V by the I/O port of the single chip microcomputer, so that the.
Assuming that the normal operating voltage is 4.7V, the minimum operating voltage is 2.95V, and the super capacitor maintains the average current of 40mA discharging (the transmitting current is 100mA, the receiving current is 30mA, and the transmitting-receiving duty ratio is 10: 1). The value of the super capacitor can be calculated as follows:
C＝(Vwork+Vmin)It/(Vwork2-Vmin2)
wherein, C (F): nominal capacity of the ultracapacitor;
vwork (V): normal operating voltage
Vmin (V): cutting off the working voltage;
t(s): requiring a continuous operating time in the circuit;
i (A): a load current;
through calculation: the capacity of the super capacitor is 0.23F for a holding time of 10s, 0.46F for a holding time of 20s, and 0.69F for a holding time of 30 s.
According to the size and the price of the capacitor, a super capacitor with the capacitance value of 1.5F and the withstand voltage of 5.5V is selected, the size specification of the super capacitor is 18.75 x 5mm, the super capacitor can be placed in a communication unit with national grid type specification, and the working time of the dual-mode communication unit can be actually maintained for 65 seconds.
2: method for reporting power failure event of certain single (several) users
Under the condition that a certain single (number of) users have power failure, the power failure reasons, the power failure scenes and the number of the affected users are shown in the following table:
| serial number | Reason for power failure before meter | Influencing quantity of electricity (household) | |
| 1 | Fault or trip of electric energy meter | One household, scattered multiple households | Single (several) household power failure |
Aiming at the power failure of a single (or a plurality of) users, the method for rapidly collecting the information of the intermediate nodes of the multi-layer network, which is provided by the invention, is characterized in that a path data field for collecting the information of the designated node is added in a data structure which originally only contains the information collection grouping of the designated node. When the network management center creates a node for appointed information collection to send an information collection message packet, a path node message in the information collection message packet is also created at the same time. Once the information gathering message packet is transmitted along a designated path, all intermediate nodes through which the information gathering message packet passes need to perform forced parsing on the transit information gathering message packet. If the information collection grouping time value of the transit information collection message grouping is lower than the waiting time of two-time information collection of the nodes, namely the new data collection time of the transit nodes of the information collection grouping is not reached, the transit message analysis node directly propagates the transit information collection message grouping continuously; if the information collection grouping time value of the transit information collection message grouping is larger than the waiting time of the two-time information collection of the node, the transit message analysis node packages the locally collected information, marks the collected information grouping according to the local node ID, and once the collected information system grouping of the lower-layer node passes through the transit return of the local node, the collected information grouping packaged by the node is directly carried in the transit return message grouping. Therefore, the method for rapidly collecting the information of the intermediate nodes in the multi-layer network is a synchronous collection method of the information of the nodes in the predetermined path, and the collection method of the information of the designated nodes is only a special example of the method.
The description is as follows:
in order to ensure the success rate of uploading the power failure information, a function of recording the power failure report information of the neighbor nodes is added at the module end of the electric energy meter, namely all the modules record the received state information of the power failure report of the neighbor nodes. At this time, even if a certain node fails to report for 3 times, if the emergency report information of the node is recorded by the neighbor node, when the neighbor node also serves as other routing relay nodes actively reporting emergency power failure, the neighbor node can report the recorded emergency power failure information of the node to the central node in a forward-carrying manner. The schematic diagram is shown in fig. 2:
in the figure, when the node 1 reports data, the adjacent nodes 2 and 3 both record the reporting state of the node 1, and when the node 2 needs to report data, the reporting information of the node 1 is reported to the central node along with the reporting state, so that the complete rate of reporting the power failure event of the intelligent electric meter is ensured.
3: power failure reporting method for intelligent electric meters in pieces
Under the condition that a certain building (unit) provided by the invention has power failure, the reasons of the power failure, the power failure scene and the number of the affected users are shown in the following table:
aiming at the type of power failure condition, the grouping method for batch carried report messages is to add a path data field of a specified report node in a data structure which originally only comprises a report information packet of the specified node. When the central node sends the report message packet to the appointed report node, the path node message in the report message packet is sent out incidentally. Therefore, the intermediate data acquisition nodes passing by the generic report message group all need to analyze the transit report message group. If the local node resident message needs to report data, the transit message analysis node carries the reported information of the local node besides continuously transmitting the transit message group; if the local node resident message does not need to report data, the transit message analysis node only needs to directly put through the reported message packet transit, so the piggyback path algorithm is a transmission mode of the node message in the preset path area, and the report of the specific node resident message is only a special case of the method. The description is shown in FIG. 3:
in the figure, a building 2 is powered off suddenly, a node 3 of the building begins to report firstly, the node 2 records the state after receiving the report of the node 3, because the node 2 also reports, the node 2 reports the state of the node 2 and the state on the node 3 at the same time, and finally the node 1 receives the data reported by the node 2 and then adds the reported data of the node 1, so that the reporting processes of the three nodes can be completed by 1 report, and the reporting efficiency is improved.
4: comprehensive study and judgment method for power failure events of district intelligent electric meter
1) Single user power meter power failure
And the single-user electric energy meter has no other electric energy meters to report the power failure event within 5 minutes of the concentrator, and the electric energy meter is directly judged to be an effective power failure event.
2) Single-phase multi-family electric energy meter power failure (phase failure event combined with concentrator)
Firstly checking the phase of the electric energy meter, if the electric energy meter is in the same phase, checking whether the concentrator reports an open-phase event (voltage loop abnormity), and if the electric energy meter does not report an open-phase event, judging that the electric energy meters have power failure and other electric energy meters in the same phase are suspected to have power failure; and if the phase failure event exists, judging that the electric energy meter has power failure and other electric meters in the phase have power failure conditions.
3) Power failure of multiphase multi-family electric energy meter
Firstly, checking the phase of the electric energy meter, and if the phase is multiphase, checking whether the concentrator reports a power failure event; if no concentrator has no power failure event, judging that the electric energy meters have power failure and other electric energy meters are suspected to have power failure conditions; and if the concentrator has a power failure event, judging that the whole area has power failure.
4) Concentrator power outage event
And if a power failure event occurs in the concentrator and a plurality of intelligent electric meters under the concentrator report the power failure event, judging that the whole area has power failure.
Claims (2)
1. The method for actively reporting and studying and judging the power failure event of the district intelligent electric energy meter is characterized in that a communication circuit is arranged in the electric energy meter, and the reporting of the power failure event of a certain single/several households and the reporting of the power failure of the intelligent electric meters in pieces are carried out through the communication circuit, and comprises the following steps:
the method for reporting the power failure event of a certain single/several users comprises the following steps: aiming at power failure of a certain single/several users, adding a path data field for collecting the information of the designated node in a data structure only containing the information collection grouping of the designated node; when the network management center establishes a node for appointed information collection to send an information collection message packet, a path node message in the information collection message packet is also established at the same time; when the information collection message packet is transmitted according to a specified path, all intermediate nodes passing by the information collection message packet are forced to analyze the transit information collection message packet; if the information collection grouping time value of the transit information collection message grouping is lower than the waiting time of two-time information collection of the nodes, namely the new data collection time of the transit nodes of the information collection grouping is not reached, the transit message analysis node directly propagates the transit information collection message grouping continuously; if the information collection grouping time value of the transit information collection message grouping is larger than the waiting time of the two-time information collection of the node, the transit message analysis node packages the locally collected information and marks the collected information grouping according to the local node ID, and once the collected information system grouping of the lower-level node passes through the transit return of the local node, the collected information grouping packaged by the node is directly carried in the transit return message grouping;
the power failure reporting method of the intelligent electric meters comprises the following steps: adding a path data field of a designated reporting node in a data structure only containing a designated node reporting information packet; when the central node sends the report message packet to the appointed report node, the path node message in the report message packet is sent out incidentally; analyzing the transit reporting message groups by all the intermediate data acquisition nodes passing the reporting message groups; if the local node resident message needs to report data, the transit message analysis node carries the reported information of the local node besides continuously transmitting the transit message group; if the local node resident message does not need to report data, the transit message analysis node directly passes through the report message packet transit;
the judging method comprises the following steps: judging the type of power failure according to the reported information;
the judging method comprises the following steps:
1) single user power meter power failure
The single-user electric energy meter has no other electric energy meters to report the power failure event within 5 minutes of the concentrator, and the electric energy meter is directly judged to be an effective power failure event;
2) single-phase multi-family electric energy meter power cut
Firstly, checking the phase of the electric energy meters, if the electric energy meters are in the same phase, checking whether the concentrator reports a phase failure event, and if the electric energy meters do not report the phase failure event, judging that the electric energy meters have power failure and other electric energy meters of the phase are suspected to have power failure conditions; if the phase failure event exists, judging that the electric energy meter has power failure and other electric meters in the phase have power failure conditions;
3) power failure of multiphase multi-family electric energy meter
Firstly, checking the phase of the electric energy meter, and if the phase is multiphase, checking whether the concentrator reports a power failure event; if no concentrator has power failure events, judging that the electric energy meters have power failure and other electric energy meters are suspected to have power failure conditions; if the concentrator has a power failure event, judging that the whole area has power failure;
4) concentrator power outage event
If a power failure event occurs in the concentrator and the intelligent electric meter under the concentrator reports the power failure event, judging that the whole area has power failure;
a communication circuit is arranged in the electric energy meter, and a certain single/several-family power failure event report and a piece of intelligent electric meter power failure report are carried out through the communication circuit.
2. The method as claimed in claim 1, wherein in the reporting method for a single/several users power failure event, a function of recording the power failure report information of the neighbor node is added at the electric energy meter module end: all electric energy meter module ends record the received state information reported by the power failure of the neighbor node; when the neighbor node serves as a routing relay node which actively reports the emergency power failure, the neighbor node reports the recorded emergency power failure information of the neighbor node to the central node.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253752A (en) * | 2018-09-18 | 2019-01-22 | 中国电力科学研究院有限公司 | Judgment method and system are interrupted in a kind of energy supply of measuring equipment |
| CN109444802B (en) * | 2018-10-26 | 2020-12-11 | 山东德源电力科技股份有限公司 | Intelligent electric meter detection method and device, equipment and medium |
| CN109327242B (en) * | 2018-10-29 | 2022-05-10 | 国网北京市电力公司 | Identification method and device for transformer area of electric energy meter |
| CN109557498B (en) * | 2018-12-21 | 2023-05-09 | 中国电力科学研究院有限公司 | Processing method for electric energy meter power-off and power-on event |
| CN110082618A (en) * | 2019-04-16 | 2019-08-02 | 国网湖南省电力有限公司 | A kind of optimization method of area's power-off event concentrator active reporting |
| CN110087196A (en) * | 2019-04-26 | 2019-08-02 | 深圳芯珑电子技术有限公司 | A kind of micropower wireless network power failure report method |
| 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 |
| CN110515030B (en) * | 2019-09-03 | 2021-07-20 | 国网青海省电力公司电力科学研究院 | Simulation detection system with automatic power failure reporting function |
| CN113313930B (en) * | 2021-05-17 | 2023-01-17 | 南京林洋电力科技有限公司 | Terminal power failure data reporting method |
| CN115276005B (en) * | 2022-09-26 | 2023-01-24 | 广东电网有限责任公司中山供电局 | Power failure event active reporting analysis method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866527A (en) * | 2016-03-18 | 2016-08-17 | 武汉盛帆电子股份有限公司 | Intelligent electric energy meter with power failure event reporting function and application system thereof |
| CN107490706A (en) * | 2017-08-15 | 2017-12-19 | 国网重庆市电力公司电力科学研究院 | A kind of novel intelligent electric energy meter based on super capacitor power supply |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008140316A (en) * | 2006-12-05 | 2008-06-19 | Chugoku Electric Power Co Inc:The | Operation support system |
| CN103532837A (en) * | 2012-09-26 | 2014-01-22 | 深圳市友讯达科技发展有限公司 | Node information collection method, network system and nodes |
| CN105590430B (en) * | 2014-10-23 | 2019-02-15 | 国家电网公司 | A kind of multipath micropower wireless meter reading method and system |
| CN104749473B (en) * | 2015-04-21 | 2017-08-29 | 国家电网公司 | A kind of power information acquisition terminal for simulating scene stops upper electric event testing method |
| CN106656312B (en) * | 2016-11-17 | 2018-12-04 | 天津大学 | The higher optical packet switch network multilink fault guard method of average node degree |
-
2017
- 2017-12-15 CN CN201711350536.6A patent/CN108152578B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866527A (en) * | 2016-03-18 | 2016-08-17 | 武汉盛帆电子股份有限公司 | Intelligent electric energy meter with power failure event reporting function and application system thereof |
| CN107490706A (en) * | 2017-08-15 | 2017-12-19 | 国网重庆市电力公司电力科学研究院 | A kind of novel intelligent electric energy meter based on super capacitor power supply |
Non-Patent Citations (3)
| Title |
|---|
| 《Adopting smart meter events as key data for low-voltage network operation》;Jesús García Prado等;《IEEE》;20170615;全文 * |
| 《基于ML610Q496掉电事件采集器的设计》;高新等;《电测与仪表》;20160808;全文 * |
| 《电能表掉电和集中器停/上电事件测试方法研究》;贺云隆等;《陕西电力》;20160331;全文 * |
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