CN102651049A - Method for calculating loss reducing rate of newly built transformer station of electric power system - Google Patents
Method for calculating loss reducing rate of newly built transformer station of electric power system Download PDFInfo
- Publication number
- CN102651049A CN102651049A CN2011100429352A CN201110042935A CN102651049A CN 102651049 A CN102651049 A CN 102651049A CN 2011100429352 A CN2011100429352 A CN 2011100429352A CN 201110042935 A CN201110042935 A CN 201110042935A CN 102651049 A CN102651049 A CN 102651049A
- Authority
- CN
- China
- Prior art keywords
- transformer station
- newly
- model
- data
- attitude
- 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.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention relates to a method for calculating the loss reducing rate of a newly built transformer station of an electric power system. The method comprises the following steps: (1) determining the newly-built transformer station; (2) determining the calculating scheme of the loss reducing rate of the newly-built transformer station; (3) determining the operation scheme of a calculating model and a data model; (4) calculating the grid loss rate in a selected time section; and (5) displaying the counting result. The invention has the benefits that through the application of the method, the analytical calculation of the loss reducing benefits of an investment project can be carried out, an assistant decision basis is provided for electric grid loss management and electric grid plan investment; and meanwhile, the workload of related personnel is reduced greatly.
Description
Technical field
The present invention relates to the newly-built transformer station of a kind of electric system and fall the computing method of loss rate.
Background technology
Electric system returns of investment performance assessment criteria comprises the newly-built and investment for trnasforming urban land proceeds indicatior of main electrical network; Major network (110/220kV) is newly-built to comprise single construction gain on investments index with index content investment for trnasforming urban land, single construction returns of investment examination scope: extremely examine the completely project of transmitting and converting electricity in 1 year of year operation in the end of the year from the engineering operation.The examination standard data are for putting into operation day the service data in 1 anniversary from engineering.Loss rate=Theoretical Calculation zone line loss electric quantity change value/block supply amount (calculating by project operation sequential) falls in the theory of newly-built transformer station.
The annual major network of electric system (110/220kV) is newly-built very big with the workload of transforming.According to the examination requirement, the Theoretical Calculation cycle is that engineering load is cut to change to accomplish and day risen 1 month, if the newly-built loss rate of falling that causes of each transformer station is carried out hand computation, the generating that then need add up one month, load condition, workload are very big.
Summary of the invention
Technical matters to be solved by this invention provides the computing method that loss rate falls in the newly-built transformer station of a kind of electric system.
The technical solution adopted for the present invention to solve the technical problems:
Step of the present invention is following:
(1) confirm newly-built transformer station:
At first confirm putting into operation constantly of newly-built transformer station, select the time period of statistics,, download all data sections of said time period from the database server of net damage system according to the said time period; With the zero-time section is benchmark, compares with all data sections, judges whether newly-increased circuit and transformer, thereby judges whether newly-built transformer station was arranged in the said time period;
(2) confirm to calculate the numerical procedure that loss rate falls in newly-built transformer station:
According to the change information of transformer station, to confirm to calculate the numerical procedure that loss rate falls in newly-built transformer station, said numerical procedure is following two kinds: old data, new model and new data, old model; Said old data, new model are promptly got the new electrical network computation model of old service data model and the transformer station of transformer station before putting into operation after putting into operation; Said new data, old model are promptly got the old electrical network computation model of new service data model and the transformer station of transformer station after putting into operation before putting into operation.
(3) confirm the operation scheme of computation model and data model:
New electrical network that loading will be researched and analysed or old electrical network computation model are to research attitude 1; The operation scheme of said electrical network computation model is set; Load historical section service data to research attitude 2; The operation scheme of the service data model of this section is set, and said operation scheme comprises that meritorious or idle, the load of running status setting, the resistance of regulating circuit or reactance value, regulator generator shift setting, and said running status setting comprises putting into operation, withdrawing from of circuit; Confirm from the load transfer scheme of research attitude 1 and research attitude 2, shown in research attitude 1, research attitude 2 be net damage system for two states that convenience of calculation is provided with, be used to store data;
(4) calculate the interior net loss rate of select time section:
Submit to said operation scheme to service end; Service end is obtained client research attitude of submitting to 1 and the operation scheme of studying attitude 2; Section computing time is set, once carries out the interior said operation scheme of said section computing time, the service data model that loads this section according to the loading data section time is to research attitude 2; Generate the E form and measure mapped file, and obtain the load value that will shift in research attitude 2 operation schemes; Be mapped to the historical data measurement in the electrical network computation model of the research attitude 1 that will study, and carry out the operation scheme of research attitude 1; Electrical network computation model to the research attitude 1 that will study calculates, and preserves result of calculation;
(5) show result of calculation:
Output results to the interface, and the storage computation result data.
Principle of the present invention is following:
Adopt 61970 XML/CIM/CIS standards, and state's net incorporated business's standard " operation of power networks exchanges data standard ", province transfers and the operation of power networks data of the EMS system that ground is transferred through obtaining, and carries out the calculating that loss rate falls in theory.Net before and after promptly transformer station being put into operation decreases and carries out analytical calculation, and both get difference, is Theoretical Calculation zone line loss electric quantity change value, and the ratio of Theoretical Calculation zone line loss electric quantity change value and block supply amount is the theory of newly-built transformer station and falls loss rate.
The zone that loss rate falls in the theory of computation is the 110kV network in electric system 220kV network and the service area.The Theoretical Calculation cycle is that engineering load is cut to change to accomplish and day risen 1 month.Theoretical Calculation data basis is a SCADA system log (SYSLOG) flow data.Bulk density is per 15 minutes 1 sections.Line loss electric weight and block supply amount are theoretical integration data.Computing method adopt and have or not pairing comparision; Respectively by the former method of operation (not having newly-built transformer station) with cut the method for operation (newly-built transformer station is arranged) the computational grid loss after changing; Ask difference; Be Theoretical Calculation zone line loss electric quantity change value, the ratio of Theoretical Calculation zone line loss electric quantity change value and block supply amount is the theory of newly-built transformer station and falls loss rate.
Electric system major network (110kV/220kV) is newly-built to fall loss rate with theory investment for trnasforming urban land in order to calculate; Need to download project cutting and change the new electric network model data section after accomplishing; The situation of computational grid loss according to the change information of transformer station in the new electric network model, is excised the transformer and the circuit of newly-built transformer station again; The load of newly-built transformer station is transferred to adjacent substations; The data section is reverted to the state of project cutting before changing, and the situation of computational grid loss is asked both difference; Be Theoretical Calculation zone line loss electric quantity change value, the ratio of Theoretical Calculation zone line loss electric quantity change value and block supply amount is the theory of newly-built transformer station and falls loss rate (being new model, old data).Or the download project cutting changes old electric network model data section before; The situation of computational grid loss again according to the change information of transformer station in the old electric network model, increases the transformer and the circuit of newly-built transformer station; Size according to newly-built substation on-load in the new data; To newly-built transformer station, the situation of computational grid loss is asked both difference with the duty values such as load transfer around the newly-built transformer station; Be Theoretical Calculation zone line loss electric quantity change value, the ratio of Theoretical Calculation zone line loss electric quantity change value and block supply amount is the theory of newly-built transformer station and falls loss rate (being old model, new data).
The invention has the beneficial effects as follows that using this method can decrease benefit to falling of operation project and carry out analytical calculation, investing with Electric Power Network Planning for the grid net loss management provides the aid decision making foundation; Alleviated simultaneously related personnel's workload greatly.
Description of drawings
The calculation procedure overall design flow chart of loss rate falls in the newly-built transformer station of Fig. 1 theory.
The main interface of Fig. 2 calculation procedure.
Fig. 3 searches the flow chart of newly-built transformer station.
Fig. 4 searches the interface that increases transformer station in the electric network model newly.
Fig. 5 calculates the flow chart of the net loss rate of electric network model in the select time section.
Fig. 6 operation scheme is provided with the interface.
Fig. 7 loads and shifts the interface.
Embodiment
The step of present embodiment is following:
(1) confirm newly-built transformer station:
Search putting into operation constantly of newly-built transformer station according to Fig. 3.
(2) confirm to calculate the numerical procedure that loss rate falls in newly-built transformer station:
For the numerical procedure of old data, new model, loading the computation model time is the time after newly-built transformer station puts into operation, and the time of loading data model is the time before putting into operation for newly-built transformer station.
For the numerical procedure of old model, new data, loading the computation model time is the time before newly-built transformer station puts into operation, and the time of loading data model is the time after putting into operation for newly-built transformer station.
(3) confirm the operation scheme of computation model and data model:
For the numerical procedure of old data, new model, the new electric network model that loading will be researched and analysed is provided with the operation scheme of this electric network model to research attitude 1.Load historical profile data to research attitude 2, the operation scheme of this section is set.Confirm from the load transfer scheme of research attitude 1 and research attitude 2.
For the numerical procedure of old model, new data, the old electric network model that loading will be researched and analysed is provided with the operation scheme of this electric network model to research attitude 1.Load historical profile data to research attitude 2, the operation scheme of this section is set.Confirm from the load transfer scheme of research attitude 2 and research attitude 1.
(4) calculate the loss rate of falling of newly-built transformer station:
For the numerical procedure of old data, new model, need to download project cutting and change the new model data section after accomplishing, the situation of computational grid loss.Again according to the change information of transformer station in the new electric network model; Excise the transformer and the circuit of newly-built transformer station, the load of newly-built transformer station is transferred to adjacent substations, the data section is reverted to the state before project cutting changes; The situation of computational grid loss; Ask both differences, be Theoretical Calculation zone line loss electric quantity change value, the ratio of Theoretical Calculation zone line loss electric quantity change value and block supply amount is the theory of newly-built transformer station and falls loss rate.
For the numerical procedure of old model, new data, need to download project cutting and change old model data section before, the situation of computational grid loss.Again according to the change information of transformer station in the old electric network model; Increase the transformer and the circuit of newly-built transformer station,, the duty values such as load transfer around the newly-built transformer station are arrived newly-built transformer station according to the size of newly-built substation on-load in the new data; The situation of computational grid loss; Ask both differences, be Theoretical Calculation zone line loss electric quantity change value, the ratio of Theoretical Calculation zone line loss electric quantity change value and block supply amount is the theory of newly-built transformer station and falls loss rate.
Claims (2)
1. the computing method of loss rate fall in the newly-built transformer station of electric system, it is characterized in that the step of said method is following:
(1) confirm newly-built transformer station:
At first confirm putting into operation constantly of newly-built transformer station, select the time period of statistics,, download all data sections of said time period from the database server of net damage system according to the said time period; With the zero-time section is benchmark, compares with all data sections, judges whether newly-increased circuit and transformer, thereby judges whether newly-built transformer station was arranged in the said time period;
(2) confirm to calculate the numerical procedure that loss rate falls in newly-built transformer station:
According to the change information of transformer station, to confirm to calculate the numerical procedure that loss rate falls in newly-built transformer station, said numerical procedure is following two kinds: old data, new model and new data, old model; Said old data, new model are promptly got the new electrical network computation model of old service data model and the transformer station of transformer station before putting into operation after putting into operation; Said new data, old model are promptly got the old electrical network computation model of new service data model and the transformer station of transformer station after putting into operation before putting into operation.
2. the operation scheme of computation model and data model is confirmed in (3):
New electrical network that loading will be researched and analysed or old electrical network computation model are to research attitude 1; The operation scheme of said electrical network computation model is set; Load historical section service data to research attitude 2; The operation scheme of the service data model of this section is set, and said operation scheme comprises that meritorious or idle, the load of running status setting, the resistance of regulating circuit or reactance value, regulator generator shift setting, and said running status setting comprises putting into operation, withdrawing from of circuit; Confirm from the load transfer scheme of research attitude 1 and research attitude 2, shown in research attitude 1, research attitude 2 be net damage system for two states that convenience of calculation is provided with, be used to store data;
(4) calculate the interior net loss rate of select time section:
Submit to said operation scheme to service end; Service end is obtained client research attitude of submitting to 1 and the operation scheme of studying attitude 2; Section computing time is set, once carries out the interior said operation scheme of said section computing time, the service data model that loads this section according to the loading data section time is to research attitude 2; Generate the E form and measure mapped file, and obtain the load value that will shift in research attitude 2 operation schemes; Be mapped to the historical data measurement in the electrical network computation model of the research attitude 1 that will study, and carry out the operation scheme of research attitude 1; Electrical network computation model to the research attitude 1 that will study calculates, and preserves result of calculation;
(5) show result of calculation:
Output results to the interface, and the storage computation result data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110042935.2A CN102651049B (en) | 2011-02-23 | 2011-02-23 | Method for calculating loss reducing rate of newly built transformer station of electric power system |
| PCT/CN2011/080827 WO2012113235A1 (en) | 2011-02-23 | 2011-10-17 | Method for calculating loss reduction ratio of newly-built transformer substation of power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110042935.2A CN102651049B (en) | 2011-02-23 | 2011-02-23 | Method for calculating loss reducing rate of newly built transformer station of electric power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102651049A true CN102651049A (en) | 2012-08-29 |
| CN102651049B CN102651049B (en) | 2015-05-06 |
Family
ID=46693057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110042935.2A Active CN102651049B (en) | 2011-02-23 | 2011-02-23 | Method for calculating loss reducing rate of newly built transformer station of electric power system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102651049B (en) |
| WO (1) | WO2012113235A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325069A (en) * | 2013-05-31 | 2013-09-25 | 国家电网公司 | Method for automatically metering theoretical power loss electric quantity based on database nesting triggers |
| CN103336171A (en) * | 2013-06-29 | 2013-10-02 | 国家电网公司 | Line loss analysis platform of electric quantity system |
| CN103793585A (en) * | 2012-10-24 | 2014-05-14 | 天津市电力公司 | Method for improving theoretical line loss computation integrity and accuracy |
| CN104459247A (en) * | 2013-09-13 | 2015-03-25 | 国家电网公司 | Split-phase line loss management method of intelligent ammeter without automatic split-phase function |
| CN104732340A (en) * | 2015-03-12 | 2015-06-24 | 国家电网公司 | Auxiliary power grid planning decision-making method based on annual time scales |
| CN105631570A (en) * | 2014-11-04 | 2016-06-01 | 国家电网公司 | Loss reduction rate calculating method of electric power system low voltage power grid |
| CN109193643A (en) * | 2018-10-15 | 2019-01-11 | 国网能源研究院有限公司 | A kind of method and system calculating distribution system network loss and reliability |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635017B (en) * | 2015-02-11 | 2017-09-26 | 中国科学院空间科学与应用研究中心 | A kind of method for calculating the geomagnetic induction current in mid low latitude region power network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005269731A (en) * | 2004-03-17 | 2005-09-29 | Tokyo Electric Power Co Inc:The | Thunder accident frequency predicting apparatus and method, thunder withstanding facility predicting apparatus and method |
| CN101788788A (en) * | 2010-01-05 | 2010-07-28 | 华北电力大学 | Multi-target unit combination intelligent optimization system based on power g state identification |
| CN101937490A (en) * | 2010-08-27 | 2011-01-05 | 河北省电力研究院 | Planning electric network loss analyzing and computing method |
Family Cites Families (3)
| 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 |
| CN201629574U (en) * | 2010-01-13 | 2010-11-10 | 山东电力集团公司 | Opening type power network loss real-time analysis system |
| CN101860025A (en) * | 2010-05-27 | 2010-10-13 | 国电南瑞科技股份有限公司 | Predictor-corrector technology-based power loss calculation method of grid in future operation mode |
-
2011
- 2011-02-23 CN CN201110042935.2A patent/CN102651049B/en active Active
- 2011-10-17 WO PCT/CN2011/080827 patent/WO2012113235A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005269731A (en) * | 2004-03-17 | 2005-09-29 | Tokyo Electric Power Co Inc:The | Thunder accident frequency predicting apparatus and method, thunder withstanding facility predicting apparatus and method |
| CN101788788A (en) * | 2010-01-05 | 2010-07-28 | 华北电力大学 | Multi-target unit combination intelligent optimization system based on power g state identification |
| CN101937490A (en) * | 2010-08-27 | 2011-01-05 | 河北省电力研究院 | Planning electric network loss analyzing and computing method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103793585A (en) * | 2012-10-24 | 2014-05-14 | 天津市电力公司 | Method for improving theoretical line loss computation integrity and accuracy |
| CN103793585B (en) * | 2012-10-24 | 2017-06-06 | 天津市电力公司 | A kind of method for improving theoretical line loss caluclation integrality and accuracy |
| CN103325069A (en) * | 2013-05-31 | 2013-09-25 | 国家电网公司 | Method for automatically metering theoretical power loss electric quantity based on database nesting triggers |
| CN103325069B (en) * | 2013-05-31 | 2016-06-15 | 国家电网公司 | Based on the theoretical Energy loss automatic gauge method of the nested triggering device of database |
| CN103336171A (en) * | 2013-06-29 | 2013-10-02 | 国家电网公司 | Line loss analysis platform of electric quantity system |
| CN104459247A (en) * | 2013-09-13 | 2015-03-25 | 国家电网公司 | Split-phase line loss management method of intelligent ammeter without automatic split-phase function |
| CN105631570A (en) * | 2014-11-04 | 2016-06-01 | 国家电网公司 | Loss reduction rate calculating method of electric power system low voltage power grid |
| CN104732340A (en) * | 2015-03-12 | 2015-06-24 | 国家电网公司 | Auxiliary power grid planning decision-making method based on annual time scales |
| CN104732340B (en) * | 2015-03-12 | 2019-11-05 | 国家电网公司 | Target plans power grid aid decision-making method when one kind is based on year |
| CN109193643A (en) * | 2018-10-15 | 2019-01-11 | 国网能源研究院有限公司 | A kind of method and system calculating distribution system network loss and reliability |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012113235A1 (en) | 2012-08-30 |
| CN102651049B (en) | 2015-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102651049B (en) | Method for calculating loss reducing rate of newly built transformer station of electric power system | |
| CN104598671B (en) | A kind of digital electric network construction method based on online data | |
| CN103150600B (en) | A kind of power grid security analysis system | |
| CN102593829B (en) | Method and device for determining transmission section in consideration of key branch circuit | |
| CN103995162B (en) | The real-time electricity anti-theft method of power distribution network large user based on senior measurement system | |
| CN102244384B (en) | Optimal operation method of main transformers based on economic equivalent analysis | |
| CN102593839A (en) | Difference adjustment coefficient setting method of generator excitation system considering all operating manners of power grid | |
| CN109657959A (en) | A kind of distribution network planning calculation and analysis methods containing multivariate data | |
| CN103646286A (en) | Data processing method for estimating efficiency of intelligent distribution network | |
| CN105243254A (en) | General line loss analysis method | |
| CN109214684A (en) | A kind of distribution line theory wire loss on-line calculation method | |
| 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 | |
| CN102856896B (en) | On-line analytical method for direct-current transmission loss | |
| CN105046360A (en) | Power load weight management system based on peak-valley time period and peak-valley time period management method | |
| CN105893714B (en) | Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system | |
| CN104158199A (en) | System and method for reactive voltage optimal control of real-time status of power system | |
| CN105528671A (en) | Power grid multidimensional sensing and safety assessment system and method on the basis of big data | |
| CN103280830A (en) | Overload control method suitable for large-scale wind power centralized access | |
| CN107422180A (en) | A kind of power prediction system of the photovoltaic plant based on cloud monitoring | |
| CN103595053B (en) | Machine method is cut in power grid stability strategy proximity optimization by measure | |
| CN108108871B (en) | Type selection method for wind power plant group power transmission equipment | |
| CN202331465U (en) | Real-time line loss monitoring and analyzing system based on PI (Processing Instruction) for power distribution line | |
| CN102684210A (en) | Method for calculating steady state power fluctuation amplitude of AC tie line of interconnected systems in two regions | |
| CN105279617A (en) | Method for calculating reliability influence of power distribution network project to be built on power network | |
| CN103123715B (en) | 220KV transformer substation electricity-using industry composition proportion online real-time counting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA HEBEI ELECTRIC POW Effective date: 20121219 Owner name: HEBEI ELECTRIC POWER CORPORATION ELECTRIC POWER RE Free format text: FORMER OWNER: HEBEI ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20121219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121219 Address after: 050021 No. 238 South Sports street, Yuhua Road, Hebei, Shijiazhuang Applicant after: Electric Power Research Institute of Hebei Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: Hebei Electric Power Construction & Adjustment Research Institute Address before: 050021 No. 238 South Sports street, Hebei, Shijiazhuang Applicant before: Hebei Electric Power Research Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |