CN111813825B - Distribution transformer outlet power failure event missing report automatic detection method and system - Google Patents
Distribution transformer outlet power failure event missing report automatic detection method and system Download PDFInfo
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- CN111813825B CN111813825B CN202010488844.0A CN202010488844A CN111813825B CN 111813825 B CN111813825 B CN 111813825B CN 202010488844 A CN202010488844 A CN 202010488844A CN 111813825 B CN111813825 B CN 111813825B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
- G06F16/2474—Sequence data queries, e.g. querying versioned data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
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Abstract
A distribution transformer outlet power failure event missing report automatic check method, the method does not need to consider 10kV line and distribution transformer parameter factors, only needs to determine line and distribution transformer attribution and distribution transformer and user attribution relation; collecting current on an outlet side of a 10kV line transformer substation, switching-on and switching-off and protection information of an outgoing line switch, collecting voltage and current on the outlet side of a distribution transformer, power failure event information of a user and power failure event information of the user; and processing and analyzing the acquired data according to a 10kV line outlet power failure event generation rule, a 10kV line study and judgment power failure event generation rule, a distribution transformer outlet power failure event generation rule, a user outlet power failure event generation rule, a distribution transformer study and judgment power failure event generation rule and a distribution transformer outlet power failure event missed-reporting check rule, so that the missed-reporting check of the distribution transformer outlet power failure event is realized.
Description
Technical Field
The invention relates to a distribution transformer outlet power failure event missing report automatic detection method and a system, and belongs to the technical field of power distribution and utilization.
Background
In the process of generating, transmitting and storing the distribution transformer outlet power failure event, the situation that the distribution transformer outlet power failure event is lost is caused due to the influences of instability of a station area acquisition device, instability of a network channel and the like, the power failure situation of the distribution transformer outlet cannot be accurately mastered, and therefore distribution transformer power failure management is not facilitated, power failure information cannot be accurately issued to users, and the risk of power failure complaints of the users is increased.
At present, 10kV line outgoing lines complete the collection of 10kV line outgoing current, the switching-on and switching-off of outgoing line switches and protection information through a transformer substation collection device and an RTU (remote terminal unit), the distribution transformer of a 10kV line connected band completes the collection of distribution transformer outlet power failure events and user outlet power failure events through an intelligent ammeter and a concentrator, therefore, the condition that the distribution transformer outlet power failure events of the line connected band are not reported can be considered to be detected through the 10kV line outgoing line power failure events, but the actual condition is influenced by the fact that the 10kV line is not powered on, the 10kV line is powered off, but only part of the distribution transformer of the connected band distribution transformer is really powered off, the condition that the distribution transformer outlet power failure events are not reported in the actual condition that the power failure distribution transformer is not powered off can not be considered to be reported as the distribution transformer outlet power failure events are not reported, and the accuracy of the detection of the distribution transformer outlet power failure events of the 10kV line connected band distribution transformer is further influenced.
Disclosure of Invention
The invention aims to provide an automatic detection method and system for the power failure event missing report of a distribution transformer outlet, in order to effectively and accurately detect the power failure event missing report condition of the distribution transformer outlet.
The technical scheme for realizing the invention is that the method for automatically detecting the failure report of the power failure event of the distribution transformer outlet does not need to consider 10kV line and distribution transformer parameter factors, and only needs to determine the attribution of the line and the distribution transformer and the attribution relationship of the distribution transformer and a user; collecting current on an outlet side of a 10kV line transformer substation, switching-on and switching-off and protection information of an outgoing line switch, collecting voltage and current on the outlet side of a distribution transformer, power failure event information of a user and power failure event information of the user; and processing and analyzing the acquired data according to a 10kV line outlet power failure event generation rule, a 10kV line study and judgment power failure event generation rule, a distribution transformer outlet power failure event generation rule, a user outlet power failure event generation rule, a distribution transformer study and judgment power failure event generation rule and a distribution transformer outlet power failure event missed-reporting check rule, so that the missed-reporting check of the distribution transformer outlet power failure event is realized.
The method for automatically checking the failure report of the power failure event of the distribution transformer outlet comprises the following specific steps:
(1) Collecting outlet current of a 10kV line by using a transformer substation outlet voltage and current collecting device; the sampling interval is 15 minutes or 30 minutes; meanwhile, the RTU is used for collecting the switching-on and switching-off information and the protection information of the outgoing switch;
(2) Collecting the voltage and the current on the outlet side of the distribution transformer by using a voltage and current collecting device on the outlet of the distribution transformer, wherein the sampling interval is generally 15 minutes or 30 minutes; meanwhile, collecting power-on stopping event information of the distribution transformer through a concentrator;
(3) Collecting power-off event information of users connected with the distribution transformer by using a distribution transformer collector and a user ammeter;
(4) Traversing and checking whether a distribution transformer outlet power failure event exists in a distribution transformer connected with a line within 45 minutes before and after the power failure starting time of the 10kV line power failure event in the analysis period; if the power failure event exists, the power failure event of the distribution transformer is not reported in a missing way; if not, judging whether a power failure event occurs to a user of a zone connected with the distribution transformer within 45 minutes before and after the power failure starting time of the line power failure event; if the power failure events of the users not less than 3 are present, judging that the power failure events of the distribution transformer are not reported; otherwise, judging that the distribution transformer has no power failure event, and failing to report the power failure event of the distribution transformer.
The generation rule of the 10kV line outlet power failure event is as follows:
generating a 10kV line outlet power failure event comprising fault power failure and maintenance power failure, which is abbreviated as ckxltdet, by the switching-on and switching-off of the outgoing switch of the transformer substation and the protection information; the fields comprise the local city, the operation unit, the transformer substation, the line name, the power failure starting time and the power failure ending time.
ckxltdet = { local city, operation unit, transformer substation, line name, power failure starting time, power failure ending time, \8230 }.
According to the generation rule of the 10kV line outlet power failure events, all 10kV line outlet power failure events during analysis are taken and sorted in an ascending order according to the power failure starting time, and a 10kV line outlet power failure event sequence ckxltdelist is generated.
ckxltdetlist＝{ckxltdet 1 ,ckxltdet 2 ,ckxltdet 3 …}。
The generation rule of the 10kV line power failure event is as follows:
if the current of the 10kV line has not less than two acquisition points with continuous current less than 1A, and no power failure event of the 10kV line outgoing line exists in the period, a power failure event for studying and judging the 10kV line is generated, which is called ybxltdet for short; the fields comprise the local city, the operation unit, the transformer substation, the line name, the power failure starting time and the power failure ending time.
ybxltdet = { local city, operation unit, transformer substation, line name, power failure starting time, power failure ending time, \ 8230; }.
And (3) according to a power failure event generating rule of the 10kV line, all the 10kV lines during the analysis period are used for researching and judging power failure events, ascending sequencing is carried out according to the power failure starting time, and a 10kV line researching and judging power failure event sequence ybbxllttlist is generated.
ybxltdetlist＝{ybxltdet 1 ,ybxltdet 2 ,ybxltdet 3 …}。
The distribution transformer outlet power failure event generation rule is as follows:
the power failure event of the distribution transformer outlet is verified by combining three-phase voltage and current data of the distribution transformer outlet; if the distribution transformer outlet power failure event is in the period of power failure, and two continuous phase voltage or current acquisition values in three-phase voltage or three-phase current are not zero, judging that the distribution transformer outlet power failure event is misinformed, and correspondingly eliminating the distribution transformer outlet power failure event; otherwise, generating a verified distribution transformer outlet power failure event ckpbtdet, wherein the field comprises a local city, an operation unit, a transformer substation, a line, a distribution transformer name, power failure starting time and power failure ending time.
ckpbtdet = { local city, operation unit, substation, line to which, distribution transformer name, power failure start time, power failure end time, \\ 8230 }.
And according to the distribution transformer outlet power failure event generation rule, all distribution transformer outlet power failure events in the analysis period are taken and sorted in an ascending order according to the power failure starting time, and a distribution transformer outlet power failure event sequence ckpbtdetlist is generated.
ckpbtdetlist＝{ckpbtdet 1 ,ckpbtdet 2 ,ckpbtdet 3 …}。
The user outlet power failure event generation rule is as follows:
and collecting a user outlet power failure event ckyhtdet by using the platform area concentrator and the user electric meter, wherein fields comprise a local city, an operation unit, a transformer substation, a line, a distribution transformer, a user name, power failure starting time and power failure ending time.
ckyhtdet = { local city, operation unit, substation, line to which, distribution transformer to which, user name, power failure start time, power failure end time, \8230 }.
According to the user power failure event generation rule, all user power failure events during analysis are taken and sorted in an ascending order according to the power failure starting time, and a user power failure event sequence ckyhtdeltist is generated.
ckyhtdetlist＝{ckyhtdet 1 ,ckyhtdet 2 ,ckyhtdet 3 …}。
The distribution transformer research and judgment power failure event generation rule is as follows:
grouping the user outlet power failure event sequence ckyhttdetist according to the same distribution transform to generate a user outlet power failure event subsequence ckyhttdetist sub; each group of ckyhtdeltristsub is sorted according to the ascending sequence of the power failure starting time of the power failure events of the user outlet, if the power failure starting time difference of the power failure events of the adjacent distribution transformer outlets in each group of ckyhtdeltristsub exceeds 20 minutes, the power failure events of the adjacent distribution transformer outlets in each group of ckyhtdeltristsub are judged not to be in the same group, and the power failure events of the user outlet are generated in groups into a grandchild sequence ckyhtdeltristsub; if the number of the users in each group of ckyhtdeltristSubsubes is less than 3, generating no distribution transformer judging power failure event ybpbtdet; otherwise, generating a distribution transformer judging power failure event ybpbtdet; the average value of the power failure starting time of the user outlet power failure events of the ckyhtdeltsbubs in each group of the ybpbtdets is the power failure starting time of the ybpbtdet, and the average value of the power failure ending time of the user outlet power failure events in the ckyhtdeltsbubs in each group of the ybpbtdets is the power failure ending time of the ybpbtdet; adding fields of a local city, an operation unit, a transformer substation, a line, a distribution transformer name, power failure starting time, power failure ending time, power failure user number of users and a connected user number, wherein the connected user number is the sum of the power failure user number and the power failure user number of the users;
according to the distribution transformer judging power failure event generation rule, all distribution transformer judging power failure events in the analysis period are taken, ascending sequencing is carried out according to the power failure starting time, and a distribution transformer judging power failure event sequence ybpbtdetlist is generated.
ybpbtdetlist＝{ybpbtdet 1 ,ybpbtdet 2 ,ybpbtdet 3 …}
The distribution transformer outlet power failure event report missing check rule is as follows:
1) 10kV line outlet blackout event sequence ckxltdeltlist traversal
Traversing the power failure event sequence ckxltdeltrist at the outlet of the 10kV line; traversing the distribution transformer of the zone connected with the line within 45 minutes before and after the power failure starting time of the power failure event at the outlet of the 10kV line; whether a distribution transformer outlet power failure event exists is checked, if yes, the fact that the distribution transformer outlet power failure event is reported without being reported in a missing mode is indicated; if not, judging whether the distribution transformer has a distribution transformer study power failure event within 45 minutes before and after the power failure starting time of the line outlet power failure event; if the distribution transformer outlet power failure event is found, judging that the power failure event is not reported, and researching the judged power failure event of the distribution transformer to generate a distribution transformer power failure event lbpbtdet; otherwise, judging that the distribution transformer has no outlet power failure event, and failing to report the distribution transformer outlet power failure event;
2) 10kV line studying and judging power failure event sequence ybxllttlist traversal
Judging a power failure event sequence ybxltdelist traversal on a 10kV line; traversing the distribution transformer of the zone connected with the line within 45 minutes before and after the power failure starting time of the 10kV line study and judgment power failure event; whether a distribution transformer outlet power failure event exists is checked, if yes, the fact that the distribution transformer outlet power failure event is reported without being reported in a missing mode is indicated; if not, judging whether the distribution transformer has a distribution transformer distribution failure event or not within 45 minutes before and after the power failure starting time of the power failure event by the line research; if the power failure event exists, judging that the power failure event of the distribution transformer is not reported, and researching the judged power failure event of the distribution transformer into a power failure event lbpbtdet which is not reported by the distribution transformer; otherwise, judging that the distribution transformer has no outlet power failure event, and failing to report the distribution transformer outlet power failure event;
3) Generating distribution transformer outlet power failure event missing report sequence
Generating an lbpbtdetlist of the distribution transformer outlet power failure event missing report sequence according to the step 1) and the step 2).
An automatic check system for the failure report of the power failure event of the distribution transformer outlet is a computer device, which comprises a memory, a processor and a computer program stored in the memory and operated on the processor, and is characterized in that the processor executes the program to realize the following steps:
(1) Inputting the circuit outlet current data, the outgoing switch opening and closing and the protection information acquired by the transformer substation acquisition device into a database memory; inputting the outlet voltage and current data of the transformer area, the power-off and power-on event information of the distribution transformer and the power-off information of the user, which are acquired by the transformer area acquisition device, into a database memory;
(2) Generating a 10kV line outlet power failure event sequence according to outlet switch information; generating a 10kV line research and judgment power failure event sequence according to the outlet current;
(3) Generating a 10kV line power failure event sequence;
(4) Traversing and checking a power failure event of a 10kV line;
(5) Generating a power failure event sequence of a distribution transformer outlet according to the power stop and supply information of the distribution transformer; generating a final distribution transformer outlet power failure event sequence according to current and voltage detection;
(6) Judging whether a distribution transformer outlet power failure event exists during a 10kV line power failure event; if so, the power failure event of the distribution transformer outlet is not reported in a missing way;
(7) If there is no distribution outlet power failure event; judging whether a distribution transformer exists during the power failure event of the 10kV line to study and judge the power failure event;
(8) If the distribution transformer does not study and judge the power failure event, the power failure event at the outlet of the distribution transformer is not reported in a missing way; if the distribution transformer study judges the power failure event, the power failure event at the outlet of the distribution transformer is not reported;
(9) Generating a power failure event which is missed to report by the distribution transformer; judging whether the 10kV power failure event is finished or not;
(10) If the 10kV power failure event is finished, generating a distribution transformer failure reporting event sequence; and if the 10kV power failure event is not finished, continuously checking the 10kV line power failure event.
The method has the advantages that the missed reporting verification of the power failure event of the distribution transformer outlet is triggered by the power failure event of the 10kV line outlet and the power failure event of the 10kV line study judgment, the influence of the power supply change without power outage of the load is considered, whether the power failure event of the distribution transformer study judgment exists is checked again, and the accuracy of the missed reporting verification of the power failure event of the distribution transformer outlet is improved. The invention fully considers the problem of asynchronous clocks of a 10kV line, a distribution transformer and a user side, adds a time window by taking the power failure starting time as the center in the line power failure event and utilizes a time difference method for the power failure event of a user outlet, well solves the problem of asynchronous clocks and further improves the accuracy of the missed report verification of the power failure event of the distribution transformer outlet.
The invention fully utilizes the existing electrical acquisition devices of the transformer substation and the distribution substation area, does not need to add new hardware, and can realize the missed reporting and verification of the power failure event at the outlet of the distribution substation through the executable program code of the computer.
Drawings
Fig. 1 is a flow chart of an automatic detection method for the failure report of the power failure event of the distribution transformer outlet.
Detailed Description
As shown in fig. 1, the method for automatically checking the power failure event missing report of the distribution transformer outlet of the embodiment includes the following specific steps:
(1) The method comprises the steps of utilizing an electric collection device of a transformer substation to collect 10kV line outlet current, wherein the sampling interval is generally 15 minutes or 30 minutes, adopting a voltage transformer V/V connection method for a voltage transformer, adopting an incomplete star connection method for a current transformer, and simultaneously collecting outgoing line opening and closing and protection signals of the line by an RTU device of the transformer substation.
(2) The transformer substation outlet side three-phase voltage and current values are collected by a transformer area collecting device, the sampling interval is generally 15 minutes or 30 minutes, a voltage transformer is not additionally arranged on the voltage, the current transformer adopts a star connection method, and a concentrator collects power-off events of the transformer substation.
(3) Collecting power-off event information of users connected with the distribution transformer by using a distribution transformer collector and a user ammeter;
(4) Define the following events
And a 10kV power failure event generated by the switching-on and switching-off of the outgoing switch of the transformer substation and the protection information is defined as a 10kV line outlet power failure event, which is abbreviated as ckxltdet.
And if the current of the 10kV line has not less than two acquisition points with continuous current less than 1A, and no power failure event of the 10kV line outgoing line exists in the period, a power failure event for studying and judging the 10kV line is generated, which is called ybxltdet for short.
The 10kV line outlet power failure event and the 10kV line study and judgment power failure event are collectively called a 10kV line power failure event, which is called xltdet for short.
And a distribution transformer power failure event generated by the power failure event information uploaded by the station area concentrator is defined as a distribution transformer outlet power failure event, which is abbreviated as ckpbtdet.
And collecting a user power failure event generated by a power failure event by using the platform area concentrator and the user electric meter to define the user outlet power failure event, which is abbreviated as ckyhtdet.
And collecting a user power failure event generated by a power failure event by using the platform area concentrator and the user electric meter to define the user outlet power failure event, which is abbreviated as ckyhtdet.
(5) Traversing and checking whether a distribution transformer outlet power failure event exists in a distribution transformer connected with a line within 45 minutes before and after the power failure starting time of the 10kV line power failure event in the analysis period; if the power failure event exists, the power failure event of the distribution transformer is not reported in a missing way; if not, judging whether a user of the distribution transformer is in a power failure event within 45 minutes before and after the power failure starting time of the line power failure event; if the power failure events of the users not less than 3 are present, judging that the power failure events of the distribution transformer are not reported; otherwise, the distribution transformer is judged to have no power failure event, and the power failure event of the distribution transformer is not reported in a missing mode.
Claims (3)
1. An automatic detection method for the failure report of the power failure event of a distribution transformer outlet is characterized in that the method does not need to consider 10kV line and distribution transformer parameter factors, and only needs to determine the attribution of the line and the distribution transformer and the attribution relationship of the distribution transformer and a user; collecting current on the outlet side of a 10kV line transformer substation and opening and closing and protection information of an outgoing line switch, collecting voltage and current on the outlet side of a distribution transformer and power failure event information, and collecting power failure event information of a user; processing and analyzing the acquired data according to a 10kV line outlet power failure event generation rule, a 10kV line study and judgment power failure event generation rule, a distribution transformer outlet power failure event generation rule, a user outlet power failure event generation rule, a distribution transformer study and judgment power failure event generation rule and a distribution transformer outlet power failure event missing report verification rule, so that the missing report verification of the distribution transformer outlet power failure event is realized;
the generation rule of the 10kV line outlet power failure event is as follows:
generating a 10kV line outlet power failure event comprising fault power failure and maintenance power failure, namely ckxltdet, by switching-on and switching-off of outgoing switches of the transformer substation and protection information; the fields comprise a local city, an operation unit, a transformer substation, a line name, power failure starting time and power failure ending time;
according to a 10kV line outlet power failure event generation rule, all 10kV line outlet power failure events during analysis are taken and sorted in an ascending order according to power failure starting time, and a 10kV line outlet power failure event sequence ckxltdelist is generated;
the generation rule of the 10kV line power failure event is as follows:
when the current of the 10kV line has not less than two acquisition points with continuous current less than 1A and no power failure event of the outgoing line of the 10kV line exists in the period, a power failure event of the 10kV line is generated, which is called ybxltdet for short; the fields comprise a local city, an operation unit, a transformer substation, a line name, power failure starting time and power failure ending time;
according to a power failure event generating rule of the 10kV line, all 10kV lines are taken to study and judge power failure events during analysis, ascending sequencing is carried out according to the power failure starting time, and a 10kV line studying and judging power failure event sequence ybbxllttlist is generated;
the distribution transformer outlet power failure event generation rule is as follows:
the distribution transformer outlet power failure event is verified by combining three-phase voltage and current data of the distribution transformer outlet; if the distribution transformer outlet power failure event is in the period of power failure, and two continuous phase voltage or current acquisition values in three-phase voltage or three-phase current are not zero, judging that the distribution transformer outlet power failure event is misinformed, and correspondingly eliminating the distribution transformer outlet power failure event; otherwise, generating a verified distribution transformer outlet power failure event ckpbtdet, wherein the field comprises a local city, an operation unit, a transformer substation, a line, a distribution transformer name, power failure starting time and power failure ending time;
according to a distribution transformer outlet power failure event generation rule, all distribution transformer outlet power failure events in the analysis period are taken and sorted in an ascending order according to the power failure starting time, and a distribution transformer outlet power failure event sequence ckpbtdetlist is generated;
the user outlet power failure event generation rule is as follows:
collecting a user outlet power failure event ckyhtdet by using a platform area concentrator and a user electric meter, wherein fields comprise a local city, an operation unit, a transformer substation, a line, a distribution transformer, a user name, power failure starting time and power failure ending time;
according to the user power failure event generation rule, all user power failure events during analysis are taken and sorted in an ascending order according to power failure starting time, and a user power failure event sequence ckyhtdeltist is generated;
the distribution transformer research and judgment power failure event generation rule is as follows:
grouping the user outlet power failure event sequences ckyhtdeltrist according to the same distribution transformation to generate user outlet power failure event sub-sequences ckyhtdeltristsub; each group of ckyhttletristubes is sorted in ascending order according to the power failure starting time of the power failure events of the user outlets, if the power failure starting time difference of the power failure events of the adjacent distribution transformer outlets in each group of ckyhttletristubes exceeds 20 minutes, the ckyhttletristubes are judged not to be in the same group, and the power failure events of the user outlets are generated in groups in a grandchild sequence; if the number of the users in each group of ckyhtdeltristSubsubes is less than 3, generating no distribution transformer judging power failure event ybpbtdet; otherwise, generating a distribution transformation judging power failure event ybpbtdet; the average value of the power failure starting time of the user outlet power failure events of the ckyhttetlistsub in each group of ybpbtdets is the power failure starting time of the ybpbtdets, and the average value of the power failure ending time of the user outlet power failure events in the ckyhttetlistsub in each group of ybpbtdets is the power failure ending time of the ybpbtdets; adding fields of a local city, an operation unit, a transformer substation, a line, a distribution transformer name, power failure starting time, power failure ending time, power failure user number of users and a connected user number, wherein the connected user number is the sum of the power failure user number and the power failure user number of the users;
according to the distribution transformer study and judgment power failure event generation rule, all distribution transformer study and judgment power failure events during analysis are taken, ascending sequencing is carried out according to the power failure starting time, and a distribution transformer study and judgment power failure event sequence ybpbtdetlist is generated;
the distribution transformer outlet power failure event report missing check rule is as follows:
1) 10kV line outlet blackout event sequence ckxltdeltlist traversal
Traversing the power failure event sequence ckxltdeltrist at the outlet of the 10kV line; traversing the distribution transformer of the zone connected with the line within 45 minutes before and after the power failure starting time of the power failure event at the outlet of the 10kV line; whether a distribution transformer outlet power failure event exists is checked, if yes, the fact that the distribution transformer outlet power failure event is reported without being reported in a missing mode is indicated; if not, judging whether a distribution transformer has a distribution transformer study power failure event or not within 45 minutes before and after the power failure starting time of the line outlet power failure event; if the power failure event exists, judging that the power failure event at the outlet of the distribution transformer is not reported, and researching and judging the power failure event by the distribution transformer to generate a power failure event lbpbtdet which is not reported by the distribution transformer; otherwise, judging that the distribution transformer has no outlet power failure event, and failing to report the outlet power failure event of the distribution transformer;
2) 10kV line studying and judging power failure event sequence ybxltdelist traversal
Judging a power failure event sequence ybxltdelist traversal on a 10kV line; traversing the distribution transformer of the zone connected with the line within 45 minutes before and after the power failure starting time of the 10kV line study and judgment power failure event; whether a distribution transformer outlet power failure event exists is checked, if yes, the fact that the distribution transformer outlet power failure event is reported without being reported in a missing mode is indicated; if not, judging whether the distribution transformer has a distribution transformer distribution failure event or not within 45 minutes before and after the power failure starting time of the power failure event by the line research; if the power failure event exists, judging that the power failure event of the distribution transformer is not reported, and researching the judged power failure event of the distribution transformer into a power failure event lbpbtdet which is not reported by the distribution transformer; otherwise, judging that the distribution transformer has no outlet power failure event, and failing to report the outlet power failure event of the distribution transformer;
3) Generating distribution transformer outlet power failure event missing report sequence
Generating an outlet power failure event missing report sequence lbpbtdetlist according to the steps 1) and 2).
2. The method for automatically checking the failure report of the power failure event of the distribution transformer outlet according to claim 1, is characterized by comprising the following specific steps:
(1) Collecting outgoing line current of a 10kV line by using a transformer substation outlet voltage and current collecting device; the sampling interval is 15 minutes or 30 minutes; meanwhile, the RTU is used for collecting the switching-on and switching-off information and the protection information of the outgoing switch;
(2) Collecting the voltage and the current at the outlet side of the distribution transformer by using a voltage and current collecting device at the outlet of the distribution transformer, wherein the sampling interval is 15 minutes or 30 minutes; meanwhile, collecting power distribution and transformation stop and power-on event information through a concentrator;
(3) Collecting power-off event information of users connected with the distribution transformer by using a distribution transformer collector and a user ammeter;
(4) Traversing and checking whether a distribution transformer outlet power failure event exists in a distribution transformer connected with a line within 45 minutes before and after the power failure starting time of the 10kV line power failure event in the analysis period; if the power failure event exists, the power failure event of the distribution transformer is not reported in a missing way; if not, judging whether a power failure event occurs to a user of a zone connected with the distribution transformer within 45 minutes before and after the power failure starting time of the line power failure event; if the power failure events of the users not less than 3 are present, judging that the power failure events of the distribution transformer are not reported; otherwise, judging that the distribution transformer has no power failure event, and failing to report the power failure event of the distribution transformer.
3. A distribution transformer outlet power failure event missing report automatic check system for realizing the distribution transformer outlet power failure event missing report automatic check method according to any one of claims 1-2 is a computer device, which comprises a memory, a processor and a computer program stored on the memory and running on the processor, and is characterized in that the processor executes the program to realize the following steps:
(1) Inputting the circuit outlet current data, the outgoing switch opening and closing and the protection information acquired by the transformer substation acquisition device into a database memory; inputting the outlet voltage and current data of the transformer area, the power-on and power-off event information of the distribution transformer and the power-off information of the user, which are acquired by the transformer area acquisition device, into a database memory;
(2) Generating a 10kV line outlet power failure event sequence according to outlet switch information; generating a 10kV line research and judgment power failure event sequence according to the outlet current;
(3) Generating a 10kV line power failure event sequence;
(4) Traversing and checking a 10kV line power failure event;
(5) Generating a distribution transformer outlet power failure event sequence according to the distribution transformer power failure and power supply stop information; generating a final distribution transformer outlet power failure event sequence according to current and voltage detection;
(6) Judging whether a distribution transformer outlet power failure event exists during a 10kV line power failure event; if so, the power failure event of the distribution transformer outlet is not reported in a missing way;
(7) If there is no distribution outlet power failure event; judging whether a distribution transformer exists during the power failure event of the 10kV line to judge the power failure event;
(8) If no distribution transformer study judges the power failure event, the power failure event at the outlet of the distribution transformer is not reported in a missing way; if the distribution transformer studies and judges the power failure event, the power failure event at the outlet of the distribution transformer is not reported;
(9) Generating a power failure event which is missed to report by the distribution transformer; judging whether the 10kV power failure event is finished or not;
(10) If the 10kV power failure event is finished, generating a distribution transformer failure event sequence; and if the 10kV power failure event is not finished, continuously checking the 10kV line power failure event.
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