CN114256839A - Accurate line loss analysis method based on platform area electrical topology - Google Patents
Accurate line loss analysis method based on platform area electrical topology Download PDFInfo
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- CN114256839A CN114256839A CN202111573800.9A CN202111573800A CN114256839A CN 114256839 A CN114256839 A CN 114256839A CN 202111573800 A CN202111573800 A CN 202111573800A CN 114256839 A CN114256839 A CN 114256839A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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Abstract
The invention discloses a precise line loss analysis method based on platform area electrical topology, which comprises the following steps: s01, installing a topology module with a signal sending function and a signal detection device; s02, the terminal starts a topology identification process and analyzes the electric topology of the transformer area according to the topology signal; s03, the terminal reads the electric energy data of all the devices in the station area every day; s04, analyzing the electric energy data of each electric topological node and the electric energy data and difference of subordinate electric meters thereof according to the result of S02; and S05, accurately analyzing the line loss conditions of all the electrical topological nodes in the distribution area according to the result obtained in the S04. The method solves the problem that the abnormal line loss of the transformer area cannot be accurately analyzed, and realizes accurate positioning of the abnormal line loss and quick and accurate positioning of the position where the abnormal line loss occurs by combing the electrical topology of the transformer area and analyzing the line loss.
Description
Technical Field
The invention relates to the technical field of transformer area line loss analysis, in particular to a precise line loss analysis method based on transformer area electrical topology.
Background
The transformer area of the low-voltage distribution network refers to a power supply area under a 220V transformer, the line loss of the transformer area is mainly the electric energy loss on a transmission line and the electric energy loss generated by abnormal electricity utilization behaviors of users, the electric energy loss on the transmission line is reasonable line loss, the abnormal electricity utilization behaviors of the users, such as electricity stealing, line leakage, metering abnormality and the like, are abnormal line loss, and the reduction of the abnormal line loss is the most effective method for reducing the overall line loss of the transformer area under the condition that the reasonable line loss cannot be reduced.
The existing method for analyzing the abnormal line loss comprises the following steps that all data and actual wiring of a transformer area are analyzed by field workers based on manual carding, the consumed manpower and material resources are huge, and the influence of the complexity of the workers and the circuit of the transformer area is large; the method is based on deep learning or big data and other abnormal algorithms for analysis, the calculated amount is large, and the influence of the power utilization environment of a station area is serious in practical application.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a precise line loss analysis method based on the platform area electrical topology, and the precise positioning of abnormal line loss is realized by combing the platform area electrical topology and analyzing the line loss.
The purpose of the invention can be realized by the following technical scheme:
an accurate line loss analysis method based on a platform area electrical topology is characterized by comprising the following steps:
s01, installing a topology module with a signal sending function and a signal detection device;
s02, the terminal starts a topology identification process and analyzes the electric topology of the transformer area according to the topology signal;
s03, the terminal reads the electric energy data of all the devices in the station area every day;
s04, analyzing the difference of the electric energy data of each electric topological node and the electric energy data sum of subordinate electric meters thereof according to the result of S02;
and S05, accurately analyzing the line loss conditions of all the electrical topological nodes in the distribution area according to the result obtained in the S04.
Further, the S02 includes:
s21, synchronously timing all the equipment in the transformer area;
s22, sending corresponding sending time and signal information to all signal sending devices;
s23, sending signal information to all signal detection devices;
s24, after the signals of all the devices are sent, obtaining the result detected by the signal detection device;
and S25, analyzing the results and generating corresponding electrical topology according to the results.
Further, the S04 includes the step of,
s41, acquiring all the electrical topology nodes in S02 and the electric meters belonging to the nodes;
s42, acquiring the electric topological nodes in S03 and electric energy data belonging to the electric meters of the nodes;
and S42, obtaining line loss data of each electrical topology node according to the sum of the electric energy data of each node and the electric energy data belonging to the node electric meter.
The invention has the beneficial technical effects that:
aiming at the defects of the existing line loss analysis technology, the invention provides a precise line loss analysis method based on the platform area electrical topology.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
Fig. 2 is an electrical topology diagram of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Examples are given.
As shown in fig. 1, a method for analyzing accurate line loss based on platform area electrical topology includes:
s01, mounting a topology module with a signal sending function and a signal detection deviceReady, as shown in FIG. 2M30～M35For topological modules with signalling functions, S**Is a signal detection device;
s21, synchronously timing all the equipment in the transformer area, and sequentially sending timing messages to all the equipment in the transformer area, so that the reference time of the equipment in the transformer area is consistent;
s22, to M30～M35Waiting for the signal transmitting equipment to transmit corresponding transmitting time and signal information, and allowing M to transmit corresponding transmitting time and signal information30～M35Sequentially sending current signals according to set time;
s23, to S**The signal detection device sends signal information to let S**Sequentially sending current signals according to set time, and detecting the current signals in the transformer area;
s24, after the signals of all the devices are sent, the signals are sent to S**Acquiring a signal detection result;
and S25, generating a corresponding electrical topology according to the signal detection result, wherein the electrical topology is as shown in FIG. 2.
S03, the terminal reads the electric energy data of all the devices in the station area every day;
s41, obtaining S25And the electric meters belonging to the node, as shown in fig. 2, S**Are all electrical nodes, M30Belong to S20Node, M31Belong to S21Node, M32、M33Belong to S22Node, M34、M35Belong to S23A node; s20、S21Belong to S10Node, S22Belong to S11Node, S23Belong to S12A node; s10、S11、S12All belong to root node S00；
S42, acquiring the electric topological nodes in S03 and electric energy data belonging to the electric meters of the nodes;
s43, obtaining the line loss data of each electrical topological node according to the sum of the electric energy data of each node and the electric energy data belonging to the node electric meter,
wherein DS**For electrical topology node line loss data, DS**The daily increment data of the electric energy of the electric topology nodes,
the data of daily increment of electric energy of the electric energy meter is shown;
s05, according to the result obtained in S43, analyzing the line loss condition of the whole transformer area, if abnormal, analyzing the line loss condition of all the electric topological nodes in the transformer area, such as S22If the line loss of the node exceeds the expected value, the site worker aims at S22And (4) manually checking the nodes, diagnosing the reasons of the abnormal line loss, and repairing the abnormal line loss in a targeted manner.
The above-mentioned embodiments are illustrative of the specific embodiments of the present invention, and are not restrictive, and those skilled in the relevant art can make various changes and modifications to obtain corresponding equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should be included in the scope of the present invention.
Claims (3)
1. An accurate line loss analysis method based on a platform area electrical topology is characterized by comprising the following steps:
s01, installing a topology module with a signal sending function and a signal detection device;
s02, the terminal starts a topology identification process and analyzes the electric topology of the transformer area according to the topology signal;
s03, the terminal reads the electric energy data of all the devices in the station area every day;
s04, analyzing the difference of the electric energy data of each electric topological node and the electric energy data sum of subordinate electric meters thereof according to the result of S02;
and S05, accurately analyzing the line loss conditions of all the electrical topological nodes in the distribution area according to the result obtained in the S04.
2. The method according to claim 1, said S02 comprising:
s21, synchronously timing all the equipment in the transformer area;
s22, sending corresponding sending time and signal information to all signal sending devices;
s23, sending signal information to all signal detection devices;
s24, after the signals of all the devices are sent, obtaining the result detected by the signal detection device;
and S25, analyzing the results and generating corresponding electrical topology according to the results.
3. The method according to claim 1, said S04 including,
s41, acquiring all the electrical topology nodes in S02 and the electric meters belonging to the nodes;
s42, acquiring the electric topological nodes in S03 and electric energy data belonging to the electric meters of the nodes;
and S42, obtaining line loss data of each electrical topology node according to the sum of the electric energy data of each node and the electric energy data belonging to the node electric meter.
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| CN111668833A (en) * | 2020-05-29 | 2020-09-15 | 国网福建省电力有限公司 | Station area topology identification method based on characteristic signal injection and identification |
| CN112034260A (en) * | 2020-08-11 | 2020-12-04 | 国网福建省电力有限公司晋江市供电公司 | Lean analysis and anti-electricity-stealing accurate positioning method for low-voltage line loss of power distribution station area |
| CN112114172A (en) * | 2020-08-26 | 2020-12-22 | 宁波恒晨电力建设有限公司 | Low-voltage transformer area abnormal line loss testing system and method with automatic topology function |
| CN112152213A (en) * | 2020-11-09 | 2020-12-29 | 江苏智臻能源科技有限公司 | Line loss-based topology identification rate judgment method |
| CN113394879A (en) * | 2021-05-10 | 2021-09-14 | 浙江华云电力工程设计咨询有限公司 | Topology identification system and method adopting single-phase intelligent household sensing device |
| CN113433384A (en) * | 2021-06-22 | 2021-09-24 | 国家电网有限公司 | Low-voltage Internet of things perception terminal device and method for line loss analysis |
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2021
- 2021-12-21 CN CN202111573800.9A patent/CN114256839A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015196745A1 (en) * | 2014-06-25 | 2015-12-30 | 国家电网公司 | Reconstruction method and device for active power distribution network |
| CA3020950A1 (en) * | 2018-10-16 | 2020-04-16 | Hydro-Quebec | Reconstruction of a topology of an electrical distribution network |
| CN111478440A (en) * | 2020-04-17 | 2020-07-31 | 南京大全自动化科技有限公司 | Topology identification system and method based on distribution transformer terminal |
| CN111668833A (en) * | 2020-05-29 | 2020-09-15 | 国网福建省电力有限公司 | Station area topology identification method based on characteristic signal injection and identification |
| CN112034260A (en) * | 2020-08-11 | 2020-12-04 | 国网福建省电力有限公司晋江市供电公司 | Lean analysis and anti-electricity-stealing accurate positioning method for low-voltage line loss of power distribution station area |
| CN112114172A (en) * | 2020-08-26 | 2020-12-22 | 宁波恒晨电力建设有限公司 | Low-voltage transformer area abnormal line loss testing system and method with automatic topology function |
| CN112152213A (en) * | 2020-11-09 | 2020-12-29 | 江苏智臻能源科技有限公司 | Line loss-based topology identification rate judgment method |
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