CN112558002A - 10kV special transformer metering PT fault analysis method and system based on data backflow - Google Patents
10kV special transformer metering PT fault analysis method and system based on data backflow Download PDFInfo
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Abstract
The invention discloses a 10kV special transformer metering PT fault analysis method and a system based on data backflow, wherein the method comprises the following steps: s1: reading a customer base file in a metering automation system; s2: reading an offline terminal list from a customer base file and extracting terminal heartbeat information; s3: acquiring a first screening result according to the heartbeat information of the offline terminal through a first screening condition; s4: reading terminal alarm information, and obtaining a second screening result by using a second screening condition on the first screening result; s5: and associating the second screening result with a business expansion work order of the marketing system, and eliminating users with metering equipment change to obtain terminal offline users with PT faults. The invention can quickly find PT faults, accelerate the processing progress, further reduce the compensation electric quantity and greatly reduce the difficulty of charge compensation.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a 10kV special transformer metering PT fault analysis method and system based on data backflow.
Background
At present, the total voltage loss fault caused by the PT fault of the 10kV special variable metering device is long in fault finding time, and long-time voltage loss causes less metering of large electric quantity, so that the difficulty of supplementing the electric quantity after later fault recovery is increased, customers are usually unwilling to undertake due to large supplemented electric quantity, and long-time continuous faults bring other hidden dangers to customer electric equipment.
The main reasons are that: 1. the PT fault metering relates to electric quantity compensation, and the conventional metering automatic system lacks a functional module for accurately judging the PT fault; 2. the time limit for the metering automation system to perform function development is longer.
In the prior art, a chinese patent publication No. CN109946640A in 6 th and 28 th 2019 discloses a voltage and current loss judgment method for a dedicated transformer terminal based on measurement automation system data, which includes the following steps: step 100, an analysis platform acquires voltage and current parameter values of a special transformer terminal from a measurement automation system reflux database; 200, after acquiring voltage and current parameter values of the special transformer terminal, the analysis platform judges whether the corresponding special transformer terminal generates voltage loss and current loss faults through a built-in judgment module; the data acquired by the main station based on the metering automation system is automatically analyzed to judge whether the phenomenon of pressure loss and current loss exists or not, and a series of preprocessing is performed on the data, so that data analysis personnel can accurately position real abnormal events, and the time of a fault disappearance closed loop is shortened. The scheme only relates to pressure loss and current loss judgment and does not aim at PT fault comprehensive analysis.
Disclosure of Invention
The invention provides a 10kV special variable metering PT fault analysis method and system based on data backflow, aiming at overcoming the defect that a method for rapidly analyzing PT faults based on data backflow is absent in the prior art.
The primary objective of the present invention is to solve the above technical problems, and the technical solution of the present invention is as follows:
the invention provides a 10kV special transformer metering PT fault analysis method based on data backflow, which comprises the following steps:
s1: reading a customer base file in a metering automation system;
s2: reading an offline terminal list from a customer base file and extracting terminal heartbeat information;
s3: acquiring a first screening result according to the heartbeat information of the offline terminal through a first screening condition;
s4: reading terminal alarm information, and obtaining a second screening result by using a second screening condition on the first screening result;
s5: and associating the second screening result with a business expansion work order of the marketing system, and eliminating users with metering equipment change to obtain terminal offline users with PT faults.
Further, the first screening condition is: the terminal lost 15 minutes heartbeat information at time 0-24 of day, and 23: and 59 minutes are still in an offline state.
Further, the second screening condition is: the alarm information includes: the terminal has power failure, voltage phase failure and voltage loss, and the voltage of a data point in the load data is lower than the preset voltage.
Further, the preset voltage is 93V.
Further, the first screening condition is used for filtering line power failure faults and metering equipment change users.
Further, the metrology device alteration comprises: and increasing and reducing the volume and replacing the terminal when power failure occurs.
Further, the second screening condition is used for filtering the following conditions: poor terminal field signal and automatic customer stop.
The invention provides a 10kV special variable metering PT fault analysis system based on data backflow, which comprises: the device comprises a memory and a processor, wherein the memory comprises a data reflux-based 10kV special variable metering PT fault analysis method program, and the data reflux-based 10kV special variable metering PT fault analysis method program realizes the following steps when being executed by the processor:
s1: reading a customer base file in a metering automation system;
s2: reading an offline terminal list from a customer base file and extracting terminal heartbeat information;
s3: acquiring a first screening result according to the heartbeat information of the offline terminal through a first screening condition;
s4: reading terminal alarm information, and obtaining a second screening result by using a second screening condition on the first screening result;
s5: and associating the second screening result with a business expansion work order of the marketing system, and eliminating users with metering equipment change to obtain terminal offline users with PT faults.
Further, the first screening condition is: the terminal lost 15 minutes heartbeat information at time 0-24 of day, and 23: and 59 minutes are still in an offline state.
Further, the second screening condition is: the alarm information includes: the terminal has power failure, voltage phase failure and voltage loss, and the voltage of a data point in the load data is lower than the preset voltage.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
according to the method, different screening conditions set by combining the terminal offline list are acquired as judgment and analysis logics, and finally the business expansion work order of the marketing system is linked, users with metering equipment changes are eliminated, and terminal offline users with PT faults are obtained. The invention can quickly find PT faults, accelerate the processing progress, further reduce the compensation electric quantity and greatly reduce the difficulty of charge compensation.
Drawings
FIG. 1 is a flow chart of a 10kV special transformer metering PT fault analysis method based on data backflow.
FIG. 2 is a block diagram of a 10kV special transformer metering PT fault analysis system based on data backflow.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example 1
In the current metering automation system, there is no functional module for judging PT failure. The reason that the terminal is offline is that only the list information of the terminal is offline, and the offline of the terminal is caused by many reasons, and most of the reasons do not relate to the condition of electric quantity chasing, so that the offline processing time limit of the terminal is longer. The invention accurately discovers the condition of the 10kV special variable metering PT fault by formulating judgment logic.
The equipment phenomena caused by PT faults are similar to the actual situations such as line blackout, customer stop, change of metering equipment (volume increase and decrease, terminal replacement, etc.), and poor terminal field signals (problem of operator channels), that is, the fault phenomena all include: the terminal is offline.
Specifically, the following working conditions and system information are shown in table 1,
TABLE 1 actual working condition of equipment and system information representation table
According to the analysis of table 1, as shown in fig. 1, the first aspect of the present invention provides a 10kV specific variable metering PT fault analysis method based on data reflow, which includes the following steps:
s1: reading a customer base file in a metering automation system;
s2: reading an offline terminal list from a customer base file and extracting terminal heartbeat information;
s3: acquiring a first screening result according to the heartbeat information of the offline terminal through a first screening condition;
the first screening condition is as follows: the terminal lost 15 minutes heartbeat information at time 0-24 of day, and 23: and 59 minutes are still in an offline state. The first filtering condition is used for filtering line blackout faults and metering equipment change users. That is, the first filtering condition can filter out the situations of line power failure and metering equipment change in table 1, where the metering equipment change includes: and increasing and reducing the volume and replacing the terminal when power failure occurs. The first screening result is an offline list.
S4: reading terminal alarm information, and obtaining a second screening result by using a second screening condition on the first screening result;
in a specific embodiment, further, the second screening condition is: the alarm information includes: the terminal has power failure, voltage phase failure and voltage loss, and the voltage of a data point in the load data is lower than the preset voltage. In a specific embodiment, the preset voltage is 93V, and the second screening condition is used for filtering the following conditions: poor terminal field signal and automatic customer stop.
S5: and associating the second screening result with a business expansion work order of the marketing system, and eliminating users with metering equipment change to obtain terminal offline users with PT faults.
As shown in fig. 2, a second aspect of the present invention provides a 10kV specific transformer metering PT fault analysis system based on data reflow, which includes: the device comprises a memory and a processor, wherein the memory comprises a data reflux-based 10kV special variable metering PT fault analysis method program, and the data reflux-based 10kV special variable metering PT fault analysis method program realizes the following steps when being executed by the processor:
s1: reading a customer base file in a metering automation system;
s2: reading an offline terminal list from a customer base file and extracting terminal heartbeat information;
s3: acquiring a first screening result according to the heartbeat information of the offline terminal through a first screening condition;
s4: reading terminal alarm information, and obtaining a second screening result by using a second screening condition on the first screening result;
s5: and associating the second screening result with a business expansion work order of the marketing system, and eliminating users with metering equipment change to obtain terminal offline users with PT faults.
Further, the first screening condition is: the terminal lost 15 minutes heartbeat information at time 0-24 of day, and 23: and 59 minutes are still in an offline state.
Further, the second screening condition is: the alarm information includes: the terminal has power failure, voltage phase failure and voltage loss, and the voltage of a data point in the load data is lower than the preset voltage.
The invention aims at PT faults, and realizes the rapid discovery of PT faults, accelerates the processing progress, reduces the compensation electric quantity, greatly reduces the difficulty of charge compensation and effectively improves the recovery rate of the electric charge and the customer satisfaction degree by acquiring the data of a metering automation system and judging and analyzing the faults.
And (3) verification and analysis:
the proprietary transform client "a (user number 0320260062352983)" at 6/8/2020 the 0-point reflow platform PT fault module shows: off-line power failure alarm and A-phase open-phase off-line alarm, a provincial metering automatic system is checked, 45 minutes of terminal no-heartbeat information at 6 month, 5 days and 5 days, 25 minutes of provincial metering at 6 month, 5 days and 5 days automatically receives terminal power failure and A-phase voltage open-phase alarm, and the marketing system has no flow of assembling and disassembling the electric energy metering device. When the 45 minutes of 6 months, 6 days and 9 hours is found out by the site power failure, a mouse in the metering cabinet causes A, B-phase fuses, AB-phase PT is burnt out, and the PT and a fuse tube are replaced on site and then are recovered to be normal.
Occurrence time from the start of the failure: 6 months, 5 days, 5 hours and 25 minutes, and the processing time to the fault power failure is as follows: 6 months, 6 days, 9 hours and 45 minutes, and the fault duration time is as follows: 28 hours and 20 minutes. The electricity quantity time needing to be supplemented is 28 hours and 20 minutes. The duration of PT faults is greatly shortened, and the time for supplementing the electric quantity is 28 hours and 20 minutes. The acceptance degree of the power consumption customer for the short-time fault which causes the need of supplementing the electric quantity is greatly improved, namely the satisfaction degree of the power consumption customer is improved.
If no PT fault analysis exists, the duration time of the faults can reach more than 7 days, a large amount of electric quantity can be supplemented, and the difficulty of supplementing the electric quantity is increased. Table 2 shows a comparison of the metered PT fault function with the system normal function.
Table 2 table for comparison of PT fault function with system normal function.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A10 kV special transformer metering PT fault analysis method based on data backflow is characterized by comprising the following steps:
s1: reading a customer base file in a metering automation system;
s2: reading an offline terminal list from a customer base file and extracting terminal heartbeat information;
s3: acquiring a first screening result according to the heartbeat information of the offline terminal through a first screening condition;
s4: reading terminal alarm information, and obtaining a second screening result by using a second screening condition on the first screening result;
s5: and associating the second screening result with a business expansion work order of the marketing system, and eliminating users with metering equipment change to obtain terminal offline users with PT faults.
2. The 10kV specific variable metering PT fault analysis method based on data backflow as claimed in claim 1, wherein the first screening condition is: the terminal lost 15 minutes heartbeat information at time 0-24 of day, and 23: and 59 minutes are still in an offline state.
3. The 10kV specific variable metering PT fault analysis method based on data backflow as claimed in claim 1, wherein the second screening condition is: the alarm information includes: the terminal has power failure, voltage phase failure and voltage loss, and the voltage of a data point in the load data is lower than the preset voltage.
4. The 10kV specific variable metering PT fault analysis method based on data backflow is characterized in that the preset voltage is 93V.
5. The 10kV special variable metering PT fault analysis method based on data backflow as claimed in claim 1, wherein the first screening condition is used for filtering line outage faults and metering equipment change users.
6. The 10kV special variable metering PT fault analysis method based on data backflow is characterized in that the metering equipment change comprises the following steps: and increasing and reducing the volume and replacing the terminal when power failure occurs.
7. The 10kV specific variable metering PT fault analysis method based on data backflow is characterized in that the second screening condition is used for filtering the following working conditions: poor terminal field signal and automatic customer stop.
8. A10 kV special transformer metering PT fault analysis system based on data backflow is characterized by comprising: the device comprises a memory and a processor, wherein the memory comprises a data reflux-based 10kV special variable metering PT fault analysis method program, and the data reflux-based 10kV special variable metering PT fault analysis method program realizes the following steps when being executed by the processor:
s1: reading a customer base file in a metering automation system;
s2: reading an offline terminal list from a customer base file and extracting terminal heartbeat information;
s3: acquiring a first screening result according to the heartbeat information of the offline terminal through a first screening condition;
s4: reading terminal alarm information, and obtaining a second screening result by using a second screening condition on the first screening result;
s5: and associating the second screening result with a business expansion work order of the marketing system, and eliminating users with metering equipment change to obtain terminal offline users with PT faults.
9. The 10kV specific variable metering PT fault analysis method based on data backflow as claimed in claim 8, wherein the first screening condition is: the terminal lost 15 minutes heartbeat information at time 0-24 of day, and 23: and 59 minutes are still in an offline state.
10. The 10kV specific variable metering PT fault analysis method based on data backflow as claimed in claim 8, wherein the second screening condition is: the alarm information includes: the terminal has power failure, voltage phase failure and voltage loss, and the voltage of a data point in the load data is lower than the preset voltage.
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