CN114693183B

CN114693183B - Automatic analysis method, system and equipment for distribution network line operation problems

Info

Publication number: CN114693183B
Application number: CN202210603389.3A
Authority: CN
Inventors: 邱桂华; 汤志锐; 吴树鸿; 周俊宇; 区伟潮; 郭志燊; 罗伟明
Original assignee: Foshan Power Supply Bureau of Guangdong Power Grid Corp
Current assignee: Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-19
Anticipated expiration: 2042-05-31
Also published as: CN114693183A

Abstract

The invention relates to a method, a system and equipment for automatically analyzing the operation problems of a distribution network line, wherein the method comprises the steps of determining power supply capacity data, operation risk data, new line user access data and line scheduling data by acquiring current data, user installation capacity data, installation user number, line ledger data, service work order data, line topology data and user ledger data of the distribution network line, analyzing and outputting the identified operation problems of the distribution network line based on preset conditions, and automatically revealing the operation problems of the distribution network line; the method realizes automatic statistical analysis of the operation problems of the distribution network lines, replaces manual statistical analysis, improves the working efficiency and reduces the workload; meanwhile, the automatic revealing of the operation problems of the distribution network lays a foundation for improving the operation management level of the distribution network, and ensures the high-quality power supply requirements of power users.

Description

Automatic analysis method, system and equipment for distribution network line operation problems

Technical Field

The invention relates to the technical field of distribution network line analysis, in particular to an automatic analysis method, system and device for distribution network line operation problems.

Background

The distribution network is the final end of the power system and is directly responsible for supplying power to power consumers, and the operation management level of the distribution network has direct influence on the power consumers to obtain power perception. In order to improve the operation management level of the power distribution network, problems existing in the operation of the power distribution network need to be revealed periodically, and then the closed-loop management is achieved by rectifying and reforming according to related problems.

The current revelation to the operation problem of distribution network mainly relies on the relevant business personnel of power supply enterprise to carry out analysis one by one according to electric power system data, and this revelation mode's work load is big and waste time, hard, is difficult to satisfy the business requirement to influence the operation management level of distribution network, the reliable power supply of power consumption customer is difficult to obtain the guarantee.

Disclosure of Invention

The embodiment of the invention provides an automatic analysis method, system and equipment for distribution network line operation problems, which are used for solving the technical problems that the existing method for revealing the distribution network operation problems is to reveal after results are obtained through manual analysis, and the method is large in workload, low in efficiency, time-consuming and labor-consuming.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

an automatic analysis method for distribution network line operation problems comprises the following steps:

acquiring current data of a distribution network line in a main station automation system, user installation capacity data and installation user number of the distribution network line in a marketing system, and determining power supply capacity data of the distribution network line according to the current data, the user installation capacity data and the installation user number;

acquiring line ledger data of a distribution network line in an asset system, and acquiring operation risk data of the distribution network line according to the line ledger data;

acquiring service work order data of distribution network lines in a distribution network operation management system, and determining line scheduling data of the distribution network lines according to the service work order data;

acquiring user account data of a distribution network line in a marketing system and line topology data of the distribution network line in an asset system, and acquiring new line user access data according to the line account data, the line topology data and the user account data;

and analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions, and outputting the identified operation problems of the distribution network lines.

Preferably, determining the power supply capacity data of the distribution network line according to the current data, the user installation capacity data and the number of installed users includes:

screening out the current data of the current of the distribution network line in the current year, and extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data;

counting the installation capacity of all users in the user installation capacity data to obtain the total installation capacity of the distribution network line;

calculating the maximum load rate of the distribution network line according to the maximum current and the line current-carrying capacity;

if the operation problem of the distribution network line is that the distribution network line is heavily overloaded, calculating to obtain the reported capacity access rate of the distribution network line according to the line voltage grade, the total reported capacity and the line current-carrying capacity;

wherein the power supply capacity data comprises a maximum load rate and a loading capacity access rate.

Preferably, the obtaining of the operation risk data of the distribution network line according to the line ledger data includes:

extracting the equipment type, equipment state and trip-caused electric power safety event and corresponding safety event level data of the distribution network line from the line ledger data;

obtaining corresponding equipment type factors, equipment state factors and line hazard degree data of the distribution network lines according to the equipment types, the equipment states and the safety event level data;

calculating to obtain a risk value of the distribution network line according to the equipment type factor, the equipment state factor and the line hazard degree data;

wherein the operational risk data includes a risk value.

Preferably, determining the line scheduling data of the distribution network line according to the service work order data includes:

extracting protection action type data from the service work order data in the line interval matching fault log;

extracting maintenance type data of the line interval matching comprehensive power failure service work order from the service work order data;

extracting the trip times of each switching element in the line interval matching fault log from the service work order data;

the line scheduling data includes protection action type data, overhaul category data, and trip times of each switching element.

Preferably, obtaining line new user access data according to the line ledger data, the line topology data, and the user ledger data includes:

extracting power supply distribution transformation of all lines from the line topology data and acquiring first installed capacities of all photovoltaic users and second installed capacities of all charging pile users corresponding to the power supply distribution transformation from the user ledger data; extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data;

counting the first installed capacities of all photovoltaic users of all lines and the second installed capacities of all charging pile users to obtain the total photovoltaic user installed capacity and the total charging pile user installed capacity of the corresponding distribution network lines;

calculating to obtain the photovoltaic access permeability of the distribution network line based on the total reporting capacity of the photovoltaic users, the line carrying capacity and the line voltage grade; calculating the charging pile access permeability of the distribution network line based on the total reporting capacity of the charging pile users, the line current-carrying capacity and the line voltage grade;

and the new line user access data comprise photovoltaic access permeability and charging pile access permeability.

Preferably, based on preset conditions, analyzing the power supply capacity data, the operation risk data, the line new user access data, and the line scheduling data, respectively, and outputting the identified operation problems of the distribution network line includes:

if the maximum load rate of the power supply capacity data is larger than a first threshold value, outputting that the operation problem of the distribution network line is distribution network line overload;

if the maximum load rate of the power supply capacity data is larger than a second threshold and not larger than a first threshold, outputting the operation problem of the distribution network line as a heavy load of the distribution network line;

if the maximum load rate of the distribution network line operation problems is larger than a second threshold value and the installation reporting capacity access rate is larger than a first threshold value, outputting the distribution network line operation problems as distribution network line over capacity access users;

if the risk value of the operation risk data is not smaller than a risk threshold value, outputting the operation problem of the distribution network line as the distribution network line has risk;

if the protection action type data of the line scheduling data contains single switch disconnection operation, outputting the operation problem of the distribution network line as emergency defect elimination of the distribution network line;

if the overhaul category data of the line scheduling data contains emergency overhaul, outputting the operation problem of the distribution network line as the emergency overhaul of the distribution network line;

if the tripping times of the same switch element of the line scheduling data are not less than the tripping threshold, outputting the operation problem of the distribution network line as the repeated fault of the distribution network line;

if the photovoltaic access permeability of the new line user access data is larger than a first threshold value, outputting the distribution network line operation problem that the distribution network line is accessed to the photovoltaic user in an excess capacity mode;

and if the charging pile access permeability of the new line user access data is greater than a first threshold value, outputting the operation problem of the distribution network line as the excess capacity access charging pile user of the distribution network line.

The application also provides an automatic analysis system for the operation problems of the distribution network line, which comprises: the system comprises a power supply capacity data acquisition module, an operation risk data acquisition module, a line scheduling data acquisition module, a line new user access data acquisition module and an operation problem identification output module;

the power supply capacity data acquisition module is used for acquiring current data of a distribution network line in a main station automation system, user installation capacity data and installation user number of the distribution network line in a marketing system, and determining power supply capacity data of the distribution network line according to the current data, the user installation capacity data and the installation user number;

the operation risk data acquisition module is used for acquiring line ledger data of a distribution network line in the asset system and acquiring operation risk data of the distribution network line according to the line ledger data;

the line scheduling data acquisition module is used for acquiring service work order data of the distribution network lines in the distribution network operation management system and determining the line scheduling data of the distribution network lines according to the service work order data;

the line new user access data acquisition module is used for acquiring user account data of a distribution network line in a marketing system and line topology data of the distribution network line in an asset system, and obtaining line new user access data according to the line account data, the line topology data and the user account data;

and the operation problem identification output module is used for analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions and outputting the identified operation problems of the distribution network lines.

Preferably, the power supply capacity data acquisition module comprises a first data processing submodule, a first statistic submodule, a load rate calculation submodule and a first calculation submodule;

the first data processing submodule is used for screening out the current data of the current of the distribution network line in the current year and extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data;

the first statistical submodule is used for counting the installation capacity of all users in the user installation capacity data to obtain the total installation capacity of the distribution network line;

the load rate calculation submodule is used for calculating the maximum load rate of the distribution network line according to the maximum current and the line current-carrying capacity;

the first calculation submodule is used for calculating the loading capacity access rate of the distribution network line according to the line voltage grade, the total loading capacity and the line current-carrying capacity by taking the operation problem of the distribution network line as the heavy overload of the distribution network line;

Preferably, the operation risk data acquisition module comprises a second data processing submodule, a third data processing submodule and a risk data calculation submodule;

the second data processing sub-module is used for extracting the equipment type, the equipment state and the trip-caused electric power safety event of the distribution network line and the corresponding safety event level data from the line ledger data;

the third data processing submodule is used for obtaining corresponding equipment type factors, equipment state factors and line hazard degree data of the distribution network lines according to the equipment types, the equipment states and the safety event level data;

the risk data calculation submodule is used for calculating a risk value of the distribution network line according to the equipment type factor, the equipment state factor and the line hazard degree data;

wherein the operational risk data includes a risk value.

Preferably, the line scheduling data acquisition module includes a first data extraction submodule, a second data extraction submodule and a third data extraction submodule;

the first data extraction submodule is used for extracting protection action type data in the line interval matching fault log from the service work order data;

the second data extraction submodule is used for extracting maintenance type data of the line interval matching comprehensive power failure service work order from the service work order data;

and the third data extraction submodule is used for extracting the trip times of each switching element in the line interval matching fault log from the service work order data.

Preferably, the line new user access data acquisition module comprises a fourth data processing submodule, a second statistical submodule and a second calculation submodule;

the fourth data processing submodule is used for extracting power supply distribution transformation of all lines from the line topology data and acquiring first installed capacities of all photovoltaic users and second installed capacities of all charging pile users corresponding to the power supply distribution transformation from the user ledger data; extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data;

the second counting submodule is used for counting the first installed capacities of all photovoltaic users of all lines and the second installed capacities of all charging pile users to obtain the total photovoltaic user installed capacity and the total charging pile user installed capacity of the corresponding distribution network line;

the second calculation submodule is used for calculating the photovoltaic access permeability of the distribution network line based on the total reporting capacity of the photovoltaic users, the line current-carrying capacity and the line voltage level; calculating the charging pile access permeability of the distribution network line based on the total reporting capacity of the charging pile users, the line current-carrying capacity and the line voltage grade;

the new line user access data comprise photovoltaic access permeability and charging pile access permeability.

Preferably, the outputting the identified operation problem of the distribution network line by the operation problem identifying output module includes:

if the maximum load rate of the power supply capacity data is larger than a second threshold and not larger than a first threshold, outputting the operation problem of the distribution network line as the heavy load of the distribution network line;

if the maximum load rate of the distribution network line operation problem is greater than a second threshold value and the reported capacity access rate is greater than a first threshold value, outputting the distribution network line operation problem as a distribution network line over-capacity access user;

if the risk value of the operation risk data is not smaller than the risk threshold, outputting the operation problem of the distribution network line as the distribution network line has risk;

if the tripping times of the same switch element of the line scheduling data are not less than the tripping threshold, outputting the operation problem of the distribution network line as that the distribution network line has repeated faults;

if the photovoltaic access permeability of the new line user access data is larger than a first threshold value, outputting the distribution network line operation problem as the excess capacity of the distribution network line access photovoltaic users; and if the charging pile access permeability of the new line user access data is greater than a first threshold value, outputting the operation problem of the distribution network line as the excess capacity access charging pile user of the distribution network line.

The application also provides automatic analysis equipment for the operation problems of the distribution network lines, which comprises a processor and a memory;

the memory is used for storing program codes and transmitting the program codes to the processor;

the processor is used for executing the automatic analysis method for the distribution network line operation problem according to the instruction in the program code.

According to the technical scheme, the embodiment of the invention has the following advantages: the embodiment of the application provides a method, a system and equipment for automatically analyzing the operation problems of distribution network lines, wherein the method comprises the following steps: acquiring current data of a distribution network line in a main station automation system, user installation capacity data and installation user number of the distribution network line in a marketing system, and determining power supply capacity data of the distribution network line according to the current data, the user installation capacity data and the installation user number; acquiring line account data of a distribution network line in an asset system, and acquiring operation risk data of the distribution network line according to the line account data; acquiring service work order data of distribution network lines in a distribution network operation management system, and determining line scheduling data of the distribution network lines according to the service work order data; acquiring user account data of a distribution network line in a marketing system and line topology data of the distribution network line in an asset system, and acquiring new line user access data according to the line account data, the line topology data and the user account data; and analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions, and outputting the identified operation problems of the distribution network lines. The automatic analysis method for the operation problems of the distribution network lines determines power supply capacity data, operation risk data, new line user access data and line scheduling data by acquiring current data, user installation capacity data, installation user number, line account data, service work order data, line topology data and user account data of the distribution network lines, analyzes and outputs identified operation problems of the distribution network lines based on preset conditions, and automatically reveals the operation problems of the distribution network lines; the method realizes automatic statistical analysis of the operation problems of the distribution network lines, replaces manual statistical analysis, improves the working efficiency and reduces the workload; meanwhile, the automatic disclosure of the operation problems of the distribution network is realized, a foundation is laid for improving the operation management level of the distribution network, the high-quality power supply requirements of power utilization users are guaranteed, and the technical problems that the existing disclosure of the operation problems of the distribution network is realized by adopting manual analysis to output results, the workload is large, the efficiency is low, and time and labor are wasted are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a flowchart illustrating steps of a method for automatically analyzing an operation problem of a distribution network according to an embodiment of the present disclosure;

fig. 2 is a block diagram of an automatic analysis system for distribution network line operation problems according to an embodiment of the present application.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the application provides an automatic analysis method, system and equipment for distribution network line operation problems, and is used for solving the technical problems that the existing method for disclosing the distribution network operation problems is to disclose after results are obtained through manual analysis, the mode is large in workload, low in efficiency and time-consuming and labor-consuming.

Fig. 1 is a flowchart illustrating steps of a method for automatically analyzing an operation problem of a distribution network according to an embodiment of the present application.

As shown in fig. 1, an embodiment of the present application provides an automatic analysis system for distribution network line operation problems, including the following steps:

s1, obtaining current data of a distribution network line in a main station automation system, user installation capacity data and installation user number of the distribution network line in a marketing system, and determining power supply capacity data of the distribution network line according to the current data, the user installation capacity data and the installation user number.

In the embodiment of the application, the master station automation system based on the power system acquires current data of the distribution network line. And acquiring user loading capacity data, loading user quantity and user standing book data of the distribution network line from a marketing system of the power system. And acquiring line ledger data and line topology data of the distribution network line from an asset system of the power system. The method comprises the steps of obtaining service work order data of a distribution network line from a distribution network operation management system of a power system, wherein the service work order data mainly comprises contents such as fault logs, comprehensive power failure orders and the like.

It should be noted that, in step S1, the power supply capacity data of the distribution network line is determined based on the acquired current data, the user installation capacity data, and the number of installation users, so as to provide data for the subsequently identified operation problem of the distribution network line.

S2, line ledger data of the distribution network line in the asset system are obtained, and operation risk data of the distribution network line are obtained according to the line ledger data.

It should be noted that, in step S2, the operation risk data of the distribution network line is obtained based on the obtained line ledger data, so as to provide data for the subsequently identified distribution network line operation problem.

And S3, acquiring service work order data of the distribution network lines in the distribution network operation management system, and determining line scheduling data of the distribution network lines according to the service work order data.

It should be noted that, in step S2, the line scheduling data of the distribution network line is determined based on the obtained service work order data, so as to provide data for the subsequently identified distribution network line operation problem.

And S4, acquiring user account data of the distribution network line in the marketing system and line topology data of the distribution network line in the asset system, and acquiring new line user access data according to the line account data, the line topology data and the user account data.

It should be noted that, in step S4, new line user access data is mainly obtained according to the line ledger data, the line topology data, and the user ledger data, so as to provide data for subsequently identified distribution network line operation problems.

And S5, analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions, and outputting the identified operation problems of the distribution network lines.

It should be noted that, mainly based on preset conditions, the power supply capacity data, the operation risk data, the new line user access data, and the line scheduling data obtained in steps S1 to S4 are analyzed and judged, the operation problem of the distribution network line is identified and output, and the automatic disclosure of the operation problem of the distribution network line is realized.

The application provides an automatic analysis method for distribution network line operation problems, which comprises the following steps: acquiring current data of a distribution network line in a main station automation system, user installation capacity data and installation user number of the distribution network line in a marketing system, and determining power supply capacity data of the distribution network line according to the current data, the user installation capacity data and the installation user number; acquiring line account data of a distribution network line in an asset system, and acquiring operation risk data of the distribution network line according to the line account data; acquiring service work order data of distribution network lines in a distribution network operation management system, and determining line scheduling data of the distribution network lines according to the service work order data; acquiring user account data of a distribution network line in a marketing system and line topology data of the distribution network line in an asset system, and acquiring new line user access data according to the line account data, the line topology data and the user account data; and analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions, and outputting the identified operation problems of the distribution network lines. The automatic analysis method for the operation problems of the distribution network lines determines power supply capacity data, operation risk data, new line user access data and line scheduling data by acquiring current data, user installation capacity data, installation user number, line account data, service work order data, line topology data and user account data of the distribution network lines, analyzes and outputs identified operation problems of the distribution network lines based on preset conditions, and automatically reveals the operation problems of the distribution network lines; the method realizes automatic statistical analysis of the operation problems of the distribution network lines, replaces manual statistical analysis, improves the working efficiency and reduces the workload; meanwhile, the automatic disclosure of the operation problems of the distribution network is realized, a foundation is laid for improving the operation management level of the distribution network, the high-quality power supply requirements of power utilization users are guaranteed, and the technical problems that the existing disclosure of the operation problems of the distribution network is realized by adopting manual analysis to output results, the workload is large, the efficiency is low, and time and labor are wasted are solved.

In an embodiment of the present application, determining the power supply capacity data of the distribution network line according to the current data, the customer installation capacity data, and the number of installed customers includes:

calculating to obtain the maximum load rate of the distribution network line according to the maximum current and the line current-carrying capacity;

if the operation problem of the distribution network line is heavy overload of the distribution network line, calculating to obtain the loading capacity access rate of the distribution network line according to the line voltage grade, the total loading capacity and the line current-carrying capacity;

In this embodiment of the present application, counting the installation capacities of all users in the user installation capacity data refers to adding the installation capacities of all users to obtain a total installation capacity of the distribution network line. And calculating the reported capacity access rate of the distribution network line by adopting an amount access rate formula according to the line voltage grade, the total reported capacity and the line current-carrying capacity. The formula of the capacity access rate is A = B/(1.732C D), wherein A is the reporting capacity access rate, B is the total reporting capacity, C is the line voltage grade, and D is the line current-carrying capacity.

The line voltage level may be 10, or may be set as needed.

In the embodiment of the application, the current data of the distribution network line stored every 15 minutes in the current year is acquired through the master station automation system, and the maximum current of the distribution network line in the current year is counted. The maximum load rate of the distribution network line in the current year = the maximum current/line ampacity in the current year.

In an embodiment of the application, the obtaining of the operation risk data of the distribution network line according to the line ledger data includes:

extracting the equipment type, equipment state and trip-caused electric power safety event of the distribution network line and corresponding safety event level data from the line ledger data;

processing according to the equipment type, the equipment state and the safety event level data to obtain corresponding equipment type factors, equipment state factors and line hazard degree data of the distribution network lines;

wherein the operational risk data includes a risk value.

In the embodiment of the present application, the security event level data is associated with the line hazard level data, and the security event level data may be a primary security event, a secondary security event, a tertiary security event, a quaternary security event, a quinary security event, an octal security event, and other security events. The associated rules are: the line hazard degree data corresponding to the first-level safety event is 6000 points, the line hazard degree data corresponding to the second-level safety event is 2500 points, the line hazard degree data corresponding to the third-level safety event is 420 points, the line hazard degree data corresponding to the fourth-level safety event is 150 points, the line hazard degree data corresponding to the fifth-level safety event is 45 points, the line hazard degree data corresponding to the sixth-level safety event is 15 points, the line hazard degree data corresponding to the seventh-level safety event is 8 points, the line hazard degree data corresponding to the eighth-level safety event is 6 points, and the line hazard degree data corresponding to other safety events is 0 point.

In an embodiment of the present application, the device type is associated with a device type factor, and the device type includes a cable line device, a hybrid line device, and an overhead line device. The associated rule is: the equipment type factor for the cable line equipment is 0.6, for the hybrid line equipment is 0.8, and for the overhead line equipment is 1.0.

In the embodiment of the present application, the device status is associated with a device status factor, and the device status includes a normal line device status, an attention line device status, and an abnormal line device status. The associated rule is: the equipment status factor for a normal line equipment status is 1.0, the equipment status factor for an attention line equipment status is 1.2, and the equipment status factor for an abnormal line equipment status is 1.5.

In an embodiment of the present application, the risk value of a distribution network line = device type factor device status factor line hazard level data.

In an embodiment of the present application, determining the line scheduling data of the distribution network line according to the service work order data includes:

extracting protection action type data in the line interval matching fault log from the service work order data;

extracting the maintenance category of the line interval matching comprehensive power failure service work order from the service work order data;

extracting trip times of each switching element in the line interval matching fault log from the service work order data;

wherein the line scheduling data includes protection action type data, overhaul category data, and trip times of each switching element.

It should be noted that the line interval matching fault log of the distribution network line is obtained from the distribution network operation management system or from the service work order data, the protection action type in the line interval matching fault log is the "single switch off operation", and if the line interval matching fault log of the distribution network line records the "single switch off operation", the distribution network line operation problem is that the distribution network line is in an emergency. The distribution network operation management system or the comprehensive power failure service work order matched with the line intervals is obtained from the service work order data, the type of the repair in the comprehensive power failure service work order matched with the line intervals is 'emergency repair', and if the comprehensive power failure service work order matched with the line intervals records 'emergency repair', the operation problem of the distribution network line is that the distribution network line has emergency repair. And obtaining a line interval matching fault log from a distribution network operation management system or business work order data, screening and counting the trip times of the same switch element from the line interval matching fault log by taking the trip of the switch element as a field, and if the trip times of the same switch element are not less than a trip threshold value, solving the problem of the operation of the distribution network line that the distribution network line has repeated faults. The trip threshold value can be 2, and can also be set according to the requirement.

In an embodiment of the present application, obtaining new line user access data according to the line ledger data, the line topology data, and the user ledger data includes:

extracting power supply distribution transformers of all lines from the line topology data and acquiring first installed capacities of all photovoltaic users and second installed capacities of all charging pile users corresponding to the power supply distribution transformers from user ledger data; extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data;

counting the first installed capacities of all photovoltaic users and the second installed capacities of all charging pile users of all lines to obtain the total installed capacities of the photovoltaic users and the charging pile users of the corresponding distribution network lines;

calculating the photovoltaic access permeability of the distribution network line based on the total reporting capacity of the photovoltaic user, the line carrying capacity and the line voltage grade; calculating to obtain the charging pile access permeability of the distribution network line based on the total reporting capacity of the charging pile users, the line current-carrying capacity and the line voltage grade;

In the embodiment of the application, counting the first installed capacities of all photovoltaic users of all lines refers to adding the first installed capacities of all photovoltaic users of all lines to obtain the total installed capacity of the photovoltaic users; and (4) counting the second installed capacities of all the charging pile users of all the lines, namely adding the second installed capacities to obtain the total installed capacity of the charging pile users.

In the embodiment of the application, the photovoltaic access permeability of the distribution network line is calculated by adopting a first access permeability formula based on the total reporting capacity of a photovoltaic user, the line carrying capacity and the line voltage level; and calculating the charging pile access permeability of the distribution network line by adopting a second access permeability formula based on the total reporting capacity of the charging pile user, the line current-carrying capacity and the line voltage grade. The first access permeability formula is E = F/(1.732C D), the second access permeability formula is G = I/(1.732C D), in the formula, E is photovoltaic access permeability, F is total reporting capacity of photovoltaic users, G is access permeability of charging piles, I is total reporting capacity of charging piles users, C is line voltage grade, and D is line current-carrying capacity.

In the embodiment of the application, the power supply distribution transformer of all the lines of the distribution network is analyzed by acquiring the line topology data from the asset system of the power system, and the first installed capacities of all photovoltaic users and the second installed capacities of all the charging pile users under the power supply distribution transformer of the distribution network line are acquired by the user account data of the distribution transformer associated marketing system.

In an embodiment of the present application, based on preset conditions, analyzing power supply capacity data, operation risk data, new line user access data, and line scheduling data, respectively, and outputting identified distribution network line operation problems includes:

if the maximum load rate of the power supply capacity data is larger than a first threshold value, outputting the operation problem of the distribution network line as the overload of the distribution network line;

if the risk value of the operation risk data is not less than the risk threshold value, outputting the operation problem of the distribution network line as the distribution network line has risk;

if the overhaul category data of the line scheduling data contains emergency overhaul, outputting the operation problem of the distribution network line as emergency overhaul of the distribution network line;

if the tripping times of the same switch element of the line scheduling data are not smaller than the tripping threshold, outputting the operation problem of the distribution network line as the repeated fault of the distribution network line;

and if the charging pile access permeability of the new line user access data is larger than a first threshold value, outputting the operation problem of the distribution network line as the excess capacity access charging pile user of the distribution network line.

It should be noted that the first threshold, the second threshold, the risk threshold, and the trip threshold may be set according to requirements. In this embodiment, the first threshold may be 1, the second threshold may be 0.8, the risk threshold may be 40, and the trip threshold may be 2.

Associating the risk value of the distribution network line with the risk level of the distribution network line, wherein the association rule is as follows: if the risk value is less than 40, the risk grade is VI grade risk; if the risk value is more than or equal to 40 and less than 200, the risk grade is V-grade risk; if the risk value is more than or equal to 200 and less than 600, the risk grade is IV-grade risk; the risk value is more than or equal to 600 and less than 1500, and the risk grade is grade III; the risk value is more than or equal to 1500 and less than 4000, and the risk grade is II-grade risk; and if the risk value is more than or equal to 4000, the risk grade is I-grade risk. In this embodiment, the risk threshold may be 40, which is not specifically limited here and may be self-defined according to the requirement.

In the embodiment of the application, the automatic analysis method for the operation problems of the distribution network lines outputs relevant results of heavy line overload, risk, emergency maintenance, emergency fault, repeated fault, photovoltaic excess capacity access, excess capacity access of charging piles and the like of the operation problems of the distribution network lines. The output content is specifically as follows: the content of the operation problem of the output distribution network line, namely the heavy overload of the line, comprises the line name of the distribution network line, the line current-carrying capacity, the annual maximum current, the annual maximum load rate occurrence time, the user loading capacity, the loading capacity access rate and whether the excess capacity access user exists. The content of the operation problem of the output distribution network line, namely the risk of the line, comprises the following steps: the method comprises the steps of line name of a distribution network line, line hazard degree data, equipment type factors, equipment state factors, risk values and safety event level data. Outputting the content that the operation problem of the distribution network line is eliminated urgently comprises the following steps: the method comprises the following steps of (1) line name of a distribution network line, line power failure time, switch power restoration time, current before line fault, current after line fault and loss load; outputting the content of emergency maintenance of the operation problems of the distribution network lines, wherein the content comprises the line name, the maintenance order number, the power failure equipment, the power failure range, the power failure operation starting time, the power failure operation ending time, the power restoration operation starting time and the power restoration operation ending time of the distribution network lines; the content of the operation problem of the output distribution network line as the repeated fault comprises the following steps: the line name of the distribution network line, the trip times, the trip switch element, the line power failure time, the switch power restoration time, the current before the line fault, the current after the line fault and the loss load. The content of outputting the operation problem of the distribution network line to the photovoltaic user with the super capacity access comprises the following steps: the method comprises the steps of distributing network line name, line carrying capacity, first installed capacity and photovoltaic access permeability. Outputting the content of the charging pile user for accessing the excess capacity of the distribution network line operation problem comprises the following steps: the line name of the distribution network line, the line current-carrying capacity, the second installed capacity and the charging pile access permeability.

The second embodiment:

As shown in fig. 2, the present application further provides an automatic analysis system for distribution network line operation problems, which includes a power supply capacity data acquisition module 10, an operation risk data acquisition module 20, a line scheduling data acquisition module 30, a line new user access data acquisition module 40, and an operation problem identification output module 50;

the power supply capacity data acquisition module 10 is used for acquiring current data of a distribution network line in the main station automation system, user installation capacity data and installation user number of the distribution network line in the marketing system, and determining power supply capacity data of the distribution network line according to the current data, the user installation capacity data and the installation user number;

the operation risk data acquisition module 20 is configured to acquire line ledger data of a distribution network line in the asset system, and acquire operation risk data of the distribution network line according to the line ledger data;

a line scheduling data obtaining module 30, configured to obtain service work order data of a distribution network line in the distribution network operation management system, and determine line scheduling data of the distribution network line according to the service work order data;

a new line user access data acquisition module 40, configured to acquire user ledger data of a distribution network line in the marketing system and line topology data of the distribution network line in the asset system, and obtain new line user access data according to the line ledger data, the line topology data, and the user ledger data;

and the operation problem identification output module 50 is used for analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions and outputting the identified operation problems of the distribution network lines.

In the embodiment of the present application, the power supply capacity data obtaining module 10 includes a first data processing sub-module, a first statistical sub-module, a load factor calculating sub-module, and a first calculating sub-module; the first data processing submodule is used for screening out the current data of the current-year maximum current of the distribution network line, and extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data; the first statistical submodule is used for counting the installation capacities of all users in the user installation capacity data to obtain the total installation capacity of the distribution network line; the load rate calculation submodule is used for calculating the maximum load rate of the distribution network line according to the maximum current and the line current-carrying capacity; the first calculation submodule is used for calculating the loading capacity access rate of the distribution network line according to the line voltage grade, the total loading capacity and the line current-carrying capacity by taking the operation problem of the distribution network line as the heavy overload of the distribution network line; the power supply capacity data comprises a maximum load rate and a loading capacity access rate; and/or

The operation risk data acquisition module 20 comprises a second data processing submodule, a third data processing submodule and a risk data calculation submodule; the second data processing submodule is used for extracting the equipment type, the equipment state and the trip-caused electric power safety event of the distribution network line and the corresponding safety event level data from the line ledger data; the third data processing submodule is used for obtaining corresponding equipment type factors, equipment state factors and line hazard degree data of the distribution network line according to the equipment type, the equipment state and the safety event level data; the risk data calculation submodule is used for calculating a risk value of the distribution network line according to the equipment type factor, the equipment state factor and the line hazard degree data; wherein the operational risk data comprises a risk value; and/or

The line scheduling data acquisition module 30 includes a first data extraction submodule, a second data extraction submodule, and a third data extraction submodule; the first data extraction submodule is used for extracting protection action type data in the line interval matching fault log from the service work order data; the second data extraction submodule is used for extracting maintenance category data of the line interval matching comprehensive power failure service work order from the service work order data; the third data extraction submodule is used for extracting the trip times of each switching element in the line interval matching fault log from the business single data; and/or

The line new user access data acquisition module 40 comprises a fourth data processing submodule, a second counting submodule and a second calculating submodule; the fourth data processing submodule is used for extracting power supply distribution transformation of all lines from the line topology data and acquiring the first installed capacities of all photovoltaic users and the second installed capacities of all charging pile users corresponding to the power supply distribution transformation from the user account data; extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data; the second counting submodule is used for counting the first installed capacities of all photovoltaic users and the second installed capacities of all charging pile users of all lines to obtain the total installed capacity of the photovoltaic users and the total installed capacity of the charging pile users of the corresponding distribution network lines; the second calculation submodule is used for calculating the photovoltaic access permeability of the distribution network line based on the total reporting capacity of the photovoltaic users, the line current-carrying capacity and the line voltage level; calculating to obtain the charging pile access permeability of the distribution network line based on the total reporting capacity of the charging pile users, the line carrying capacity and the line voltage grade; the new line user access data comprise photovoltaic access permeability and charging pile access permeability.

In the embodiment of the present application, the outputting of the identified operation problem of the distribution network line by the operation problem identification output module includes:

if the maximum load rate of the power supply capacity data is larger than a second threshold and not larger than a first threshold, outputting the distribution network line operation problem as a distribution network line heavy load;

if the maximum load rate of the operation problems of the distribution network lines is larger than a second threshold value and the reported capacity access rate is larger than a first threshold value, outputting the operation problems of the distribution network lines as the excess capacity access users of the distribution network lines;

if the photovoltaic access permeability of the new line user access data is larger than a first threshold value, outputting the distribution network line operation problem as the excess capacity access photovoltaic user of the distribution network line; and if the charging pile access permeability of the new line user access data is greater than a first threshold value, outputting the distribution network line operation problem as the distribution network line excess capacity access charging pile user.

It should be noted that, the contents of the modules in the second system of the embodiment have already been described in detail in the steps in the first method of the embodiment, and the details of the modules in the second system of the embodiment are not described herein again.

Example three:

a memory for storing the program code and transmitting the program code to the processor;

and the processor is used for executing the automatic analysis method for the operation problems of the distribution network lines according to the instructions in the program codes.

It should be noted that the method for automatically analyzing the operation problem of the distribution network line is described in detail in the first embodiment, and is not described in detail herein. The processor is used for executing the steps in the embodiment of the automatic analysis method for the operation problems of the distribution network line according to the instructions in the program codes. Alternatively, the processor, when executing the computer program, implements the functions of each module/unit in each system/apparatus embodiment described above.

Illustratively, a computer program may be partitioned into one or more modules/units, which are stored in a memory and executed by a processor to accomplish the present application. One or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program in the automatic analysis equipment for the operation problems of the distribution network line.

The automatic analysis equipment for the operation problems of the distribution network line can be computing equipment such as a desktop computer, a notebook computer, a palm computer, a cloud server and the like. The automatic analysis equipment for the operation problems of the distribution network lines can comprise, but is not limited to, a processor and a memory. Those skilled in the art will appreciate that the device for automatically analyzing the operation problems of the distribution network line is not limited and may include more or less components than those shown, or may combine some components, or different components, for example, the device for automatically analyzing the operation problems of the distribution network line may further include an input/output device, a network access device, a bus, etc.

The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The storage may be an internal storage unit of the automatic analysis device for the operation problem of the distribution network line, for example, a hard disk or a memory of the automatic analysis device for the operation problem of the distribution network line. The memory may also be an external storage device of the automatic analysis device for the operation problem of the distribution network line, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the automatic analysis device for the operation problem of the distribution network line. Further, the memory may include both an internal memory unit and an external memory device of the automatic analysis device for the operation problems of the distribution network line. The memory is used for storing computer programs and other programs and data required by the automatic analysis equipment for the operation problems of the distribution network line. The memory may also be used to temporarily store data that has been output or is to be output.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is substantially or partly contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An automatic analysis method for distribution network line operation problems is characterized by comprising the following steps:

analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions, and outputting identified operation problems of the distribution network lines;

determining power supply capacity data of a distribution network line according to the current data, the user installation capacity data and the installation user number comprises the following steps:

if the operation problem of the distribution network line is heavy overload of the distribution network line, calculating the reported capacity access rate of the distribution network line according to the line voltage grade, the total reported capacity and the line current-carrying capacity;

wherein the power supply capacity data comprises a maximum load rate and a loading capacity access rate;

the step of obtaining operation risk data of the distribution network line according to the line ledger data comprises the following steps:

wherein the operational risk data comprises a risk value;

determining the line scheduling data of the distribution network line according to the service work order data comprises:

extracting protection action type data in a line interval matching fault log from the service work order data;

wherein the line scheduling data comprises protection action type data, overhaul category data and trip times of each switching element;

obtaining new line user access data according to the line account data, the line topology data and the user account data comprises:

extracting power supply distribution transformers of all lines from the line topology data and acquiring first installed capacities of all photovoltaic users and second installed capacities of all charging pile users corresponding to the power supply distribution transformers from the user ledger data; extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data;

calculating the photovoltaic access permeability of the distribution network line based on the total reporting capacity of the photovoltaic users, the line carrying capacity and the line voltage grade; calculating the charging pile access permeability of the distribution network line based on the total reporting capacity of the charging pile users, the line current-carrying capacity and the line voltage grade;

2. The method for automatically analyzing the operation problems of the distribution network lines according to claim 1, wherein the analysis of the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data is performed based on preset conditions, and the outputting of the identified operation problems of the distribution network lines comprises:

and if the charging pile access permeability of the new line user access data is greater than a first threshold value, outputting the distribution network line operation problem as the distribution network line excess capacity access charging pile user.

3. An automatic analysis system for distribution network line operation problems is characterized by comprising: the system comprises a power supply capacity data acquisition module, an operation risk data acquisition module, a line scheduling data acquisition module, a line new user access data acquisition module and an operation problem identification output module;

the line scheduling data acquisition module is used for acquiring service work order data of distribution network lines in the distribution network operation management system and determining line scheduling data of the distribution network lines according to the service work order data;

the operation problem identification output module is used for analyzing the power supply capacity data, the operation risk data, the new line user access data and the line scheduling data respectively based on preset conditions and outputting the identified operation problems of the distribution network lines;

the power supply capacity data acquisition module comprises a first data processing submodule, a first statistic submodule, a load rate calculation submodule and a first calculation submodule; the first data processing submodule is used for screening out the current data of the current of the distribution network line in the current year and extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data; the first statistical submodule is used for counting the installation capacity of all users in the user installation capacity data to obtain the total installation capacity of the distribution network line; the load rate calculation submodule is used for calculating the maximum load rate of the distribution network line according to the maximum current and the line current-carrying capacity; the first calculation submodule is used for calculating the loading capacity access rate of the distribution network line according to the line voltage grade, the total loading capacity and the line current-carrying capacity by taking the operation problem of the distribution network line as the heavy overload of the distribution network line; the power supply capacity data comprises a maximum load rate and a loading capacity access rate;

the operation risk data acquisition module comprises a second data processing submodule, a third data processing submodule and a risk data calculation submodule; the second data processing sub-module is used for extracting the equipment type, the equipment state and the trip-caused electric power safety event of the distribution network line and the corresponding safety event level data from the line ledger data; the third data processing submodule is used for obtaining corresponding equipment type factors, equipment state factors and line hazard degree data of the distribution network lines according to the equipment types, the equipment states and the safety event level data; the risk data calculation submodule is used for calculating a risk value of the distribution network line according to the equipment type factor, the equipment state factor and the line hazard degree data; wherein the operational risk data comprises a risk value;

the line scheduling data acquisition module comprises a first data extraction submodule, a second data extraction submodule and a third data extraction submodule; the first data extraction submodule is used for extracting protection action type data in a line interval matching fault log from the service work order data; the second data extraction submodule is used for extracting maintenance type data of the line interval matching comprehensive power failure service work order from the service work order data; the third data extraction submodule is used for extracting the trip times of each switching element in the line interval matching fault log from the service work order data;

the line new user access data acquisition module comprises a fourth data processing submodule, a second statistical submodule and a second calculation submodule; the fourth data processing submodule is used for extracting power supply distribution transformation of all lines from the line topology data and acquiring first installed capacities of all photovoltaic users and second installed capacities of all charging pile users corresponding to the power supply distribution transformation from the user ledger data; extracting the line current-carrying capacity and the line voltage grade of the distribution network line from the line ledger data; the second counting submodule is used for counting the first installed capacities of all photovoltaic users and the second installed capacities of all charging pile users of all lines to obtain the total installed capacity of the photovoltaic users and the total installed capacity of the charging pile users of the corresponding distribution network lines; the second calculation submodule is used for calculating the photovoltaic access permeability of the distribution network line based on the total reporting capacity of the photovoltaic users, the line current-carrying capacity and the line voltage level; calculating the charging pile access permeability of the distribution network line based on the total reporting capacity of the charging pile users, the line current-carrying capacity and the line voltage grade; and the new line user access data comprise photovoltaic access permeability and charging pile access permeability.

4. The system of claim 3, wherein the output module for identifying operational problems outputs the identified operational problems of the distribution network lines comprises:

5. An automatic analysis device for distribution network line operation problems is characterized by comprising a processor and a memory;

the processor is configured to execute the method for automatically analyzing the operation problem of the distribution network line according to the instructions in the program code, according to claim 1 or 2.