CN102969711A - Line loss control system - Google Patents
Line loss control system Download PDFInfo
- Publication number
- CN102969711A CN102969711A CN 201210478523 CN201210478523A CN102969711A CN 102969711 A CN102969711 A CN 102969711A CN 201210478523 CN201210478523 CN 201210478523 CN 201210478523 A CN201210478523 A CN 201210478523A CN 102969711 A CN102969711 A CN 102969711A
- Authority
- CN
- China
- Prior art keywords
- data
- line loss
- loss
- line
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004458 analytical method Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 14
- 238000007405 data analysis Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 15
- 238000004364 calculation method Methods 0.000 description 13
- 238000010205 computational analysis Methods 0.000 description 5
- 238000000205 computational method Methods 0.000 description 5
- 230000003203 everyday effect Effects 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention belongs to the field of power systems and automation, and particularly relates to a line loss control system. The system comprises a data acquisition unit, a processing control unit and an output display unit, wherein the acquisition unit is used for acquiring basic data for line loss computation, and the basic data comprise device parameter information, device state data, measured data, state estimation data and electric quantity data; the processing control unit is used for receiving the basic data acquired by the acquisition unit, and carrying out online computation and result analysis on load tests, line loss, network loss and the like; and the output display unit is used for receiving and displaying computation and result data of the processing control unit. The line loss control system can be used for implementing multi-dimensional network loss management, normalized load tests, and multi-dimensional online statistical line loss rate and theoretical line loss rate analyzing and monitoring reflecting the effects of changes of a grid framework, a load level, an operation mode and the like on electric transmission and transformation equipment and line los in time, and provide data support for economic operation and management of a power grid.
Description
Technical field
The invention belongs to electric power system and automatic field, be specifically related to a kind of line loss control system.
Background technology
The electrical network electric energy loss is calculated and is comprised that the statistical line losses rate is calculated and the Molded Line loss rate is calculated.The statistical line losses rate is each net, the province and district city electric company line loss rate that each supplies to the electrical network in institute's compass of competency, electricity sales amount gauge table statistics draws; The Molded Line loss rate line loss rate that to be each net, province and district district electric company draw according to device parameter, load trend, property calculation affiliated defeated, change, controller switching equipment.Electrical network electric energy loss rate (claiming again line loss rate) is important economic and technical norms of concentrated expression Study on Power Grid Planning, production run and management level.
Domestic have the minority electric power enterprise to carry out the research of electrical network electric energy loss online evaluation, set up the powernet electric energy loss method of calculating and analysis based on automation system for the power network dispatching and Electric Energy Acquisition System, but can't carry out slitless connection with existing dispatching patcher, computational methods are single, do not carry out the various dimensions of multiple computational methods relatively, device parameter collection point manual maintenance amount is large, data pick-up is untimely, not carrying out data check can cause result of calculation inaccurate, and can not carry out in line computation, can not in time reflect the situation of change of electrical network electric energy loss.And can not normality carry out area power grid load measurement and the theoretical evaluation work of line loss, can not satisfy the requirement that the economy operation of power grid management becomes more meticulous.
Summary of the invention
The purpose of this invention is to provide a kind of line loss control system that is applied to network system, this system by and have the slitless connection of dispatching patcher now, realize the network loss management of various dimensions, the load measurement of normalization, Online statistics line loss rate and the computational analysis of Molded Line loss rate and the monitoring of various dimensions, reflected that timely Net Frame of Electric Network, load level, operational mode etc. change the impact on electrical network power transmission and transforming equipment and line loss, for the economy operation of power grid management provides Data support.
For achieving the above object, the technical solution used in the present invention is: a kind of line loss control system is characterized in that: system comprises data acquisition unit, processing and control element (PCE) and output display unit, wherein
Collecting unit: gather the basic data that is used for line loss calculating, basic data comprises device parameter information, device status data and measured data, Data of State Estimation and electric quantity data;
Processing and control element (PCE): receive the basic data that collecting unit gathers, and to load measurement, line loss, network loss etc. are carried out in line computation and interpretation of result;
Output display unit: accept calculating and result data and the demonstration of processing and control element (PCE).
As shown from the above technical solution, the line loss control system comprises line loss based on the various dimensions computation model in line computation and monitoring, and described line loss based on the various dimensions computation model is used for Real Time Monitoring to line loss rate, loss on transmission rate and the Network Loss Rate of the online computational analysis of various dimensions of line loss, loss on transmission and the network loss of electrical network and electrical network in line computation and monitoring.Multiple load measurement analysis of calculation models, described multiple load measurement analysis of calculation models comprises regional load, factory station and transformer minimax load, transformer capacity-load ratio, regional transformer capacity-load ratio, line load rate, voltage levvl and power supply situation.Basic management, described basic management is mainly used in the management to grid equipment parameter and collection point, by the parsing to EMS system grid topology data, realizes the slitless connection with the EMS system.After adopting technique scheme, carry out the online computational analysis of line loss by rms current method, power integral method, state estimation, electric quantity acquisition, the situation of change that can in time reflect the electrical network electric energy loss, utilize the computational methods of various dimensions to carry out the line loss computational analysis, avoided the inaccurate of single algorithm line loss data.And consider that the factors such as temperature, corona, device type and Electric Power Network Planning are on the impact of result of calculation.Can carry out to line loss, loss on transmission the analytic statistics of " various dimensions management ", automatically generate the line loss analyzing report.The multiple result of calculation analysis of load measurement can reflect the present situation of electrical network, for reasonably adjusting power system operating mode, provides Data support.Basic management can be carried out unified version management and calculation of parameter to the grid equipment parameter, by with the close coupling of EMS system, make the collection point automatic adaptation, improved operating efficiency.
Description of drawings
Fig. 1 is principle of the present invention, FB(flow block).
Embodiment
A kind of line loss control system is characterized in that: system comprises data acquisition unit, processing and control element (PCE) and output display unit, wherein
Collecting unit: gather the basic data that is used for line loss calculating, basic data comprises device parameter information, device status data and measured data, Data of State Estimation and electric quantity data;
Processing and control element (PCE): receive the basic data that collecting unit gathers, and to load measurement, line loss, network loss etc. are carried out in line computation and interpretation of result;
Output display unit: accept calculating and result data and the demonstration of processing and control element (PCE).
Described device parameter information is selected manual typing or peripheral system access;
Described device status data and measured data are carried out the search of the whole network automated topology and are obtained in the EMS system;
Data of State Estimation and electric quantity data are provided by EMS system and electric weight system respectively;
Above-mentioned basic data is carried out data correction by the scheduler task timing extraction of formulation and to the flaw data.
Described load measurement comprises transformer capacity-load ratio, line load rate and voltage levvl;
Described line loss is calculated and is comprised employing mean square root method, power integral method enforcement state estimation and electric quantity acquisition;
Described network loss is calculated and is comprised critical point definition, network loss form, network loss curve and network loss tabulate statistics;
Described data analysis comprises on-line monitoring, line loss comparison, line loss statement analysis, load measurement report analysis.
The line loss control system comprises line loss calculating, according to certain data collection cycle electric network composition is carried out topology and obtain measured data and grid equipment detail parameters from peripheral support system (as: EMS system etc.), carry out the theoretical calculating of line loss (computational methods comprise: the calculating of rms current method and power integral etc.) and multiple line loss result and compare analysis.Load measurement carries out load measurement according to the image data of collection point and calculates (content of calculating comprises: transformer capacity-load ratio, line load rate etc.).The network loss management according to the result that theory wire loss calculates and statistical line losses calculates, counts respectively the electric weight of each collection point, calculates line loss, loss on transmission and electricity volume, thereby calculates Network Loss Rate and multiple network loss result is compared analysis.Basic management, method is carried out version management to the grid equipment detail parameters, guarantees that the equipment detail parameters that participates in calculating all is up-to-date.Analysis management, the line loss rate of method Real Time Monitoring circuit, and report to the police to line loss rate is out-of-limit.
Among the present invention, the root mean square calculation method during described line loss is calculated is to carry out online computational analysis every day, can utilize the result of calculation of every day to carry out monthly or annual statistical analysis; Load measurement can carry out once to every day in normalization simultaneously, and utilizes the result of calculation of load measurement every day to carry out monthly or annual statistical analysis; Final generative theory line loss report and load measurement report.Wherein the calculating of root mean square theory wire loss and load measurement calculate and can and formulate timer-triggered scheduler task dual mode and realize with artificial manual calculations.
Its implementation side's flow process is: after method is used, enter the line loss computing module, check respectively that according to the difference of computational methods line loss result of calculation also can carry out the comprehensive comparative analysis of many algorithms and compare analysis according to network loss and Network Loss Rate that multiple line loss result calculates algorithms of different.Enter the load measurement module, can check the result of calculation of various computation models.When the grid equipment parameter in the basic management is changed, can manually recomputate theory wire loss and load measurement, form at last theory wire loss report and load measurement report.
Be described as follows below in conjunction with the gatherer process of the data acquisition flow among Fig. 1 to basic data:
1, whether differentiates first for manually from keyboard typing electrical network parameter, such as resistance, reactance value.
If 2 "No" are then from other existing electrical network parameter, as pouring in batches the parameter of electrical network in the system of resistance, reactance value into.
If 3 "Yes" are then from manually from keyboard typing electrical network parameter, such as resistance, reactance value.
4, system carries out searching of topological relation (that is: whether equipment and equipment room being linked together) automatically.
5, from EMS (EMS), the voltage of equipment, the equivalent size of electric current are namely finished the full mesh topology search.
6, system carries out data relatively (system is value, the numerical value in the coulomb collection system, the equipment actual measured value of estimation automatically), and rejects bad data, generates available data.
7, available data have been arranged after, the basis of data analysis just is provided for the system-computed platform, can carry out the data analysis of 18 projects of 5 classifications and control line loss work.
Claims (3)
1. line loss control system, it is characterized in that: system comprises data acquisition unit, processing and control element (PCE) and output display unit, wherein
Collecting unit: gather the basic data that is used for line loss calculating, basic data comprises device parameter information, device status data and measured data, Data of State Estimation and electric quantity data;
Processing and control element (PCE): receive the basic data that collecting unit gathers, and to load measurement, line loss, network loss etc. are carried out in line computation and interpretation of result;
Output display unit: accept calculating and result data and the demonstration of processing and control element (PCE).
2. line loss control system according to claim 1 is characterized in that:
Described device parameter information is selected manual typing or peripheral system access;
Described device status data and measured data are carried out the search of the whole network automated topology and are obtained in the EMS system;
Data of State Estimation and electric quantity data are provided by EMS system and electric weight system respectively;
Above-mentioned basic data is carried out data correction by the scheduler task timing extraction of formulation and to the flaw data.
3. line loss control system according to claim 1 is characterized in that:
Described load measurement comprises transformer capacity-load ratio, line load rate and voltage levvl;
Described line loss is calculated and is comprised employing mean square root method, power integral method enforcement state estimation and electric quantity acquisition;
Described network loss is calculated and is comprised critical point definition, network loss form, network loss curve and network loss tabulate statistics;
Described data analysis comprises on-line monitoring, line loss comparison, line loss statement analysis, load measurement report analysis.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210478523 CN102969711A (en) | 2012-11-22 | 2012-11-22 | Line loss control system |
| CN201310493325.3A CN103501003A (en) | 2012-11-22 | 2013-10-18 | Line loss control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210478523 CN102969711A (en) | 2012-11-22 | 2012-11-22 | Line loss control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102969711A true CN102969711A (en) | 2013-03-13 |
Family
ID=47799672
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210478523 Pending CN102969711A (en) | 2012-11-22 | 2012-11-22 | Line loss control system |
| CN201310493325.3A Pending CN103501003A (en) | 2012-11-22 | 2013-10-18 | Line loss control system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310493325.3A Pending CN103501003A (en) | 2012-11-22 | 2013-10-18 | Line loss control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102969711A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532136A (en) * | 2013-10-16 | 2014-01-22 | 国网安徽省电力公司 | On-line computation and aid decision making system and on-line computation and aid decision making method for province-prefecture-country integrated network loss |
| US20160253768A1 (en) * | 2013-12-18 | 2016-09-01 | State Grid Corporation Of China | Method for determining integrated network loss rate in uhv ac cross-regional electricity trading |
| CN108009940A (en) * | 2017-11-10 | 2018-05-08 | 国网浙江省电力公司电力科学研究院 | Same period line loss exception analysis method and system based on Tableau |
| CN110867861A (en) * | 2019-12-04 | 2020-03-06 | 广西大学 | Method for accurately delimiting theoretical line loss of power distribution network |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110210001A (en) * | 2019-05-14 | 2019-09-06 | 国电南瑞科技股份有限公司 | A kind of layering and zoning Network Loss Rate statistical method based on EMS system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714234B (en) * | 2009-10-23 | 2012-09-26 | 西北电网有限公司 | Grid line loss monitoring and analyzing system |
| CN102455707A (en) * | 2010-10-21 | 2012-05-16 | 贵州航天控制技术有限公司 | Ship attitude sensor based on infinite impulse response digital filtering technology |
| CN102074954B (en) * | 2010-12-20 | 2014-02-19 | 重庆电力科学试验研究院 | Comprehensive energy-conservation evaluation and decision-making method for urban and rural distribution network |
| CN102254256A (en) * | 2011-07-21 | 2011-11-23 | 福建省电力有限公司福州电业局 | Transmission and distribution network integration comprehensive line loss management analysis system and processing flow thereof |
| CN102567645B (en) * | 2012-01-10 | 2014-10-22 | 河北省电力公司 | Method for counting equipment of power grid and computing transmission losses on basis of on-line theoretical transmission loss computation |
| CN102722851B (en) * | 2012-06-08 | 2015-11-18 | 上海市电力公司 | A kind of majority based on intelligent power grid technology is according to interface synthesis line loss management system of local electric network |
-
2012
- 2012-11-22 CN CN 201210478523 patent/CN102969711A/en active Pending
-
2013
- 2013-10-18 CN CN201310493325.3A patent/CN103501003A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532136A (en) * | 2013-10-16 | 2014-01-22 | 国网安徽省电力公司 | On-line computation and aid decision making system and on-line computation and aid decision making method for province-prefecture-country integrated network loss |
| US20160253768A1 (en) * | 2013-12-18 | 2016-09-01 | State Grid Corporation Of China | Method for determining integrated network loss rate in uhv ac cross-regional electricity trading |
| US10580096B2 (en) * | 2013-12-18 | 2020-03-03 | State Grid Corporation Of China Economic & Technology Research | Method for determining integrated network loss rate in UHV AC cross-regional electricity trading |
| CN108009940A (en) * | 2017-11-10 | 2018-05-08 | 国网浙江省电力公司电力科学研究院 | Same period line loss exception analysis method and system based on Tableau |
| CN110867861A (en) * | 2019-12-04 | 2020-03-06 | 广西大学 | Method for accurately delimiting theoretical line loss of power distribution network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103501003A (en) | 2014-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103872782B (en) | A kind of power quality data integrated service system | |
| CN103955777B (en) | Photovoltaic generation accesses power distribution network conceptual design and analysis and evaluation accessory system | |
| CN102184209B (en) | Simulation data accessing method based on power grid CIM (Common Information Model) interface | |
| CN109657912B (en) | Visual power grid risk management and control method and system | |
| CN104239059B (en) | Intelligence based on full model matches somebody with somebody the construction method of electricity consumption unified information support platform | |
| CN201789341U (en) | Monitoring system of intelligent micro-grid | |
| CN104219315A (en) | Operation monitoring system for electricity consumption information acquisition system and monitoring method thereof | |
| CN104252649A (en) | Regional wind power output prediction method based on correlation between multiple wind power plants | |
| CN102969711A (en) | Line loss control system | |
| CN103544652A (en) | Power grid industry classification load automatic statistical method and system | |
| CN102129060A (en) | Electric energy meter reliability detection method and device | |
| CN102930398A (en) | Intelligent checking method and system for relay protection setting values based on extensible markup language (XML) technology | |
| CN102682197A (en) | Monitoring method and monitoring device for predicating change trend of energy consumption of single equipment in real time | |
| CN101923685A (en) | System and method for deciding power shedding load based on line breaking fault rate prediction | |
| CN110019098A (en) | Electrical energy measurement big data analysis system based on Hadoop frame | |
| CN103532136A (en) | On-line computation and aid decision making system and on-line computation and aid decision making method for province-prefecture-country integrated network loss | |
| CN103632311A (en) | Fault examining system and method for power grid operation | |
| CN103944265A (en) | Interactive and smart electric energy distribution and consumption monitoring device and method | |
| CN110879543A (en) | Real-time hybrid simulation platform of electric power system | |
| CN102856896A (en) | On-line analytical method for direct-current transmission loss | |
| CN108875103B (en) | Power grid online simulation system and method | |
| WO2023086017A2 (en) | Method and apparatus for determining state of phovoltaic power station, device, and readable storage medium | |
| CN117374978B (en) | Grid-connected scheduling management method and system constructed by combining knowledge graph | |
| CN113469488B (en) | Online diagnosis and analysis system for topological structure of power distribution network equipment | |
| CN102426623A (en) | Automatic failure fitting modeling method for power load modeling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |