CN116154761A - 10 KV bus line loss anomaly analysis method - Google Patents
10 KV bus line loss anomaly analysis method Download PDFInfo
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- CN116154761A CN116154761A CN202310129999.9A CN202310129999A CN116154761A CN 116154761 A CN116154761 A CN 116154761A CN 202310129999 A CN202310129999 A CN 202310129999A CN 116154761 A CN116154761 A CN 116154761A
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 42
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- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000011835 investigation Methods 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
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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
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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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- 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
- G01R31/088—Aspects of digital computing
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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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- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a 10 kilovolt bus line loss anomaly analysis method, which comprises the steps of establishing a bus line loss anomaly model, setting influence factors, traversing whether the influence factor data is abnormal, reconfiguring one or more corresponding anomaly influence factors to be normal, then recalculate the corrected 10 kilovolt bus line loss rate, and then determining anomaly factors and anomaly positions. The fault cause can be identified in a directional mode, abnormal points can be identified through the main transformer line loss rate of the transformer station and the line loss rate of the 10 kilovolt distribution line, and the fault position is clear.
Description
Technical Field
The invention relates to the field of a line loss anomaly analysis working range of 10 kilovolt buses, in particular to a 10 kilovolt bus line loss anomaly analysis method based on an integrated electric quantity and line loss management system.
Background
The main source of the main business income of the power supply company is electricity selling, and is influenced by factors such as energy conservation, emission reduction, environmental protection treatment, major activities and the like, and the development mode of only relying on the high-speed increase of electricity selling is not successful. The line loss electric quantity is reduced, the voltage drop cost can be further reduced, and the management benefit is achieved. Therefore, the line loss of the propulsion management is reduced, the full-force good line damage management and control is completed comprehensively, and the key task of the mining synergy is realized, so that the method becomes the most direct and effective means for improving the benefits.
Aiming at the current abnormal investigation of the line loss of the 10 kilovolt bus, the method mainly relates to the 10 kilovolt main transformer and the distribution line gateway, and the current situation that the field investigation is difficult and the abnormal point cannot be intuitively displayed exists.
Disclosure of Invention
The invention aims to provide a line loss anomaly analysis method which can directionally identify the line loss anomaly fault reason and fault position of a 10 kilovolt bus.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
a10 kilovolt bus line loss anomaly analysis method comprises the following steps:
(1) Acquiring integrated electric quantity and line loss management system data, establishing a bus line loss abnormal model, setting an influence factor, defining a normal value of the influence factor and a 10 kilovolt bus daily line loss rate abnormal interval, wherein the influence factor comprises model configuration data of a bus balance module, main power variable data of a main transformer inquiring part and line gateway electric quantity data of a power distribution line synchronous daily line loss part;
(2) Acquiring 10 kilovolt bus synchronous daily line loss data of a bus balance part of the integrated electric quantity and line loss management system, and judging whether the 10 kilovolt bus daily line loss rate abnormal interval is fallen into;
(3) If the data fall into the abnormal interval, traversing whether the influence factor data are abnormal, reconfiguring one or more corresponding abnormal influence factors into normal, calculating the daily line loss rate of the corrected 10 kilovolt bus, if the data return into the normal interval, considering the data as abnormal corresponding influence factors, and taking corresponding rectifying measures; if the abnormal factors are not found at the end of the traversal, dispatching a site operator to patrol and check whether the site abnormal conditions exist.
The model is configured into a 10 kilovolt bus model, the 10 kilovolt bus model comprises a transformer substation main transformer and a distribution line gateway model under the jurisdiction of the 10 kilovolt bus, if the distribution line gateway model is not configured, the distribution line gateway model is abnormal, the 10 kilovolt bus line loss rate is recalculated after the model is reconfigured, and the 10 kilovolt bus model is correctly configured by rectifying measures.
The abnormal judgment basis of the main transformer electricity quantity data is as follows: the line loss rate of the main transformer is less than-2% or more than or equal to 5%, if the condition exists, the current electric quantity is corrected to be the average electric quantity of 7 standard days before the 10 kilovolt main transformer to be detected, the line loss rate of the 10 kilovolt bus is recalculated, and the correction measures are analysis or field investigation on the main transformer collected data of the transformer substation.
The abnormal judgment basis of the line gateway electric quantity data is as follows: the line loss rate of the distribution line under the jurisdiction of the 10 kilovolt bus to be measured is greater than 10% or less than 0, if the condition exists, the line loss rate of the 10 kilovolt bus is recalculated by replacing the current day of electric quantity with 7 standard day of electric quantity before the line gate, and the rectification measure is to analyze or survey the collected data of the line gate on site.
Preferably, the daily line loss rate abnormal section of the 10 kilovolt bus is lower than-4% or higher than 4%, and the rest is a normal section.
The invention has the advantages that: the 10 kilovolt bus line loss anomaly analysis method is combined with the abnormal reasons with larger occurrence probability and heavier influence to formulate the identification logic relationship, so that the fault reasons can be identified in a directed manner, the abnormal points are identified through the main transformer line loss rate of the transformer station and the 10 kilovolt distribution line loss rate, and the fault positions are defined.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in connection with the embodiments of the present invention.
Example 1
The invention discloses a 10 kilovolt bus line loss anomaly analysis method, which comprises the following steps of.
(1) Acquiring integrated electric quantity and line loss management system data, inquiring 10 kilovolt bus same-period line loss data according to an integrated electric quantity and line loss management system bus balance part, dividing the 10 kilovolt bus daily line loss rate into two sections of "< -4% or >4%, -4 (inclusive) to 4% (inclusive), defining the section of" < -4% or >4% as a 10 kilovolt bus daily line loss rate abnormal section, and defining the section of-4 (inclusive) to 4% (inclusive) as a normal section.
(2) The method comprises the steps of establishing a bus line loss abnormal model, setting an influence factor, and defining normal values and abnormal intervals of the influence factor, wherein the model configuration data of a bus balance module, main power transformation quantity data of a main transformer inquiring part and line gateway power quantity data of a power distribution line synchronous daily line loss part are specifically included.
(3) Checking whether the main transformer of the transformer station and a gateway model of a distribution line under the jurisdiction of a 10 kilovolt bus are all configured through a bus balancing module of the integrated electric quantity and line loss management system, if not, configuring the model, calculating whether the line loss rate of the 10 kilovolt bus is normal, and if the line loss rate is true to (including) -4 percent, judging that the line loss abnormality of the 10 kilovolt bus is abnormal because of the configuration of the model, and carrying out rectification, wherein the rectification measure is to correctly configure the 10 kilovolt bus model; if the model is correct or the line loss rate of the 10 kilovolt bus is still not in the interval of-4 (inclusive) to 4 (inclusive) after the model is configured, continuing to judge.
(4) And checking the condition of the main transformer line loss rate of the transformer substation through a main transformer inquiring part of an integrated electric quantity and line loss management system, if the main transformer line loss rate is not-2 (inclusive) to 5%, calculating the average electric quantity of the first 7 standard days of the 10 kilovolt main transformer instead of the current day electric quantity to obtain the 10 kilovolt bus line loss rate, judging whether the bus line loss rate is normal or not, if the line loss rate is true to-4 (inclusive), the 10 kilovolt bus line loss abnormality is abnormal because of the main transformer electric quantity calculation, rectifying and changing the main variation normal problem, wherein the rectifying and changing measure is to analyze or survey the main transformer collected data on site, and if the main transformer line loss rate is not abnormal or the 10 kilovolt bus line loss rate is still not within the-4 (inclusive) to 4% (inclusive) interval after the electric quantity replacement, continuing to judge.
(5) Checking whether the line loss rate of the distribution line under the jurisdiction of the 10 kilovolt bus is 0-10% (inclusive) through the same-period daily line loss part of the distribution line of the integrated electric quantity and line loss management system, if not, calculating the line loss rate of the 10 kilovolt bus by replacing the electric quantity of 7 standard days before the line gateway with the electric quantity of the current day, judging whether the line loss rate of the bus is normal, if the line loss rate is true to-4 (inclusive), the line loss abnormality of the 10 kilovolt bus is abnormal because of the electric quantity calculation of the line gateway, and rectifying and changing the line gateway abnormality problem by analyzing or on-site surveying the collected data of the line gateway.
(6) If the line loss rate of the line gate is not abnormal or the line loss rate of the 10 kilovolt bus is still not in the interval of-4 to 4 percent (inclusive), dispatching a site operation personnel to inspect whether site abnormality exists.
Example 2
Based on the method, an analysis method for line loss abnormality caused by a plurality of influence factors is provided, which comprises the following steps:
meanwhile, whether two or more anomalies exist in the model configuration data, the main transformer power data and the line gate power data or not is detected, namely whether (1) the main transformer of the transformer substation and the power distribution line gate model under the 10 kilovolt bus are checked, the line loss rate of (2) the main transformer is not in a range from-2 (inclusive) to 5%, the line loss rate of (3) the power distribution line under the bus is not in a range from 0 (inclusive) to 10% (inclusive) is judged, and if the three conditions exist, the method is corrected according to the mode in the embodiment 1, and the cause of the anomalies is judged.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The 10 kilovolt bus line loss anomaly analysis method is characterized by comprising the following steps of:
(1) Acquiring integrated electric quantity and line loss management system data, establishing a bus line loss abnormal model, setting an influence factor, and defining a normal value of the influence factor and a 10 kilovolt bus daily line loss rate abnormal interval, wherein the influence factor comprises model configuration data of a bus balance module, main power supply data of a main transformer inquiring part and line gateway electric quantity data of a power distribution line synchronous daily line loss part;
(2) Acquiring 10 kilovolt bus synchronous daily line loss data of a bus balance part of the integrated electric quantity and line loss management system, and judging whether the 10 kilovolt bus daily line loss rate abnormal interval is fallen into;
(3) If the data fall into the abnormal interval, traversing whether the influence factor data are abnormal, reconfiguring one or more corresponding abnormal influence factors into normal, calculating the daily line loss rate of the corrected 10 kilovolt bus, if the data return into the normal interval, considering the data as abnormal corresponding influence factors, and taking corresponding rectifying measures; if the abnormal factors are not found at the end of the traversal, dispatching a site operator to patrol and check whether the site abnormal conditions exist.
2. The method for analyzing the abnormal line loss of the 10 kilovolt bus according to claim 1, wherein the model is configured as a 10 kilovolt bus model, the method comprises the steps of configuring a main transformer of a transformer substation and a gateway model of a distribution line under the jurisdiction of the 10 kilovolt bus, if the main transformer is not configured, the method is abnormal, the method is characterized in that the model is reconfigured, the line loss rate of the 10 kilovolt bus is recalculated, and the method is used for correctly configuring the 10 kilovolt bus model.
3. The 10 kv bus line loss anomaly analysis method according to claim 1, wherein the anomaly determination basis of the main transformer quantity data is: the line loss rate of the main transformer is less than-2% or more than or equal to 5%, if the condition exists, the current electric quantity is corrected to be the average electric quantity of 7 standard days before the 10 kilovolt main transformer to be detected, the line loss rate of the 10 kilovolt bus is recalculated, and the correction measures are analysis or field investigation on the main transformer collected data of the transformer substation.
4. The method for analyzing abnormal line loss of 10 kv bus according to claim 1, wherein the abnormal judgment basis of the line gateway electric quantity data is: the line loss rate of the distribution line under the jurisdiction of the 10 kilovolt bus to be measured is greater than 10% or less than 0, if the condition exists, the line loss rate of the 10 kilovolt bus is recalculated by replacing the current day of electric quantity with 7 standard day of electric quantity before the line gate, and the rectification measure is to analyze or survey the collected data of the line gate on site.
5. The method for analyzing abnormal line loss of 10 kv bus according to claim 1, wherein the abnormal section of the daily line loss rate of 10 kv bus is lower than-4% or higher than 4%, and the rest is a normal section.
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| CN202310129999.9A CN116154761A (en) | 2023-02-17 | 2023-02-17 | 10 KV bus line loss anomaly analysis method |
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| CN202310129999.9A CN116154761A (en) | 2023-02-17 | 2023-02-17 | 10 KV bus line loss anomaly analysis method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779699A (en) * | 2014-01-13 | 2015-07-15 | 国网上海市电力公司 | Multifunctional station line loss management system |
| CN105956755A (en) * | 2016-04-26 | 2016-09-21 | 广西电网有限责任公司百色供电局 | Method and system for establishing quantitative relationship of general power line loss rate influencing factors |
| CN112785152A (en) * | 2021-01-22 | 2021-05-11 | 国网山东省电力公司德州市陵城区供电公司 | Distribution line loss analysis method based on integrated electric quantity and line loss management system |
| CN115169596A (en) * | 2022-05-05 | 2022-10-11 | 国网山东省电力公司德州市陵城区供电公司 | Transformer area line loss analysis method based on integrated electric quantity and line loss management system |
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- 2023-02-17 CN CN202310129999.9A patent/CN116154761A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779699A (en) * | 2014-01-13 | 2015-07-15 | 国网上海市电力公司 | Multifunctional station line loss management system |
| CN105956755A (en) * | 2016-04-26 | 2016-09-21 | 广西电网有限责任公司百色供电局 | Method and system for establishing quantitative relationship of general power line loss rate influencing factors |
| CN112785152A (en) * | 2021-01-22 | 2021-05-11 | 国网山东省电力公司德州市陵城区供电公司 | Distribution line loss analysis method based on integrated electric quantity and line loss management system |
| CN115169596A (en) * | 2022-05-05 | 2022-10-11 | 国网山东省电力公司德州市陵城区供电公司 | Transformer area line loss analysis method based on integrated electric quantity and line loss management system |
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