CN103647273A - Power distribution network structure on-line loop closing flow optimization method - Google Patents
Power distribution network structure on-line loop closing flow optimization method Download PDFInfo
- Publication number
- CN103647273A CN103647273A CN201310537543.2A CN201310537543A CN103647273A CN 103647273 A CN103647273 A CN 103647273A CN 201310537543 A CN201310537543 A CN 201310537543A CN 103647273 A CN103647273 A CN 103647273A
- Authority
- CN
- China
- Prior art keywords
- analysis
- distribution network
- cyclization
- loop closing
- power distribution
- 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
Classifications
-
- 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
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a power distribution network structure on-line loop closing flow optimization method. The method comprises the following steps: step I, topology analysis is performed to generate topology data for calculation; step II, closed loop flow calculation is performed to calculate the flow distribution before loop closing and after loop closing; step III, loop closing flow analysis is performed, and analysis and evaluation data is formed; step IV, and graphic display is performed to show the loop closing flow analysis and evaluation result to users in graphics or forms manner. According to the invention, optimization is performed on the power distribution network structure by adopting an on-line loop closing flow optimization algorithm, so that the method can be used to effectively guide dispatchers to choose the best time to perform the loop closing operation to ensure the success of the loop closing operation, the equipment safety can be ensured, the uninterruptible power supply to a power user can be ensured, and the power supply reliability can be improved.
Description
Technical field
The present invention relates to the online cyclization tide optimization method of a kind of power distribution network rack.
Background technology
For simplifying power system operating mode, suppress short circuit current level, improve the power supply reliability of electrical network, maintain the safety and economic operation of electrical network, China 110kV and following supply and distribution net generally adopt the pattern of looped network design, open loop operation.When needs transfer load or overhaul complete plan while restoring electricity, generally adopt the operator scheme of unlinking after first cyclization to avoid user to have a power failure, improve user's power supply reliability.
During due to Loop Closing Operation, may produce larger cyclization trend, cause apparatus overload or relaying protection action, cause Loop Closing Operation failure or have a power failure.If protection tripping, may cause device damage or upper level protection action, expand power failure range.Because the operation conditions of electrical network after cyclization is opaque to scheduling operations staff; management and running personnel are difficult to prejudge by rule of thumb the reliability of Loop Closing Operation; probably because cyclization trend is excessive, cause apparatus overload or trip protection after cyclization; finally cause Loop Closing Operation failure, cause user to have a power failure or electric equipment damage etc.Because cyclization trend size is difficult to direct prediction, in order to prevent device damage, be to adopt break-before-make principle to operate sometimes, cause user to have a power failure in short-term, this has sacrificed mains supply reliability, in the important load power supply areas such as urban district, is unacceptable.Therefore, before carrying out Loop Closing Operation, should carry out the budget of cyclization trend, the situation after involutive ring accomplishes to know what's what, and guarantees Loop Closing Operation success, improves power supply reliability.In situation with good conditionsi, should pass through the in-service monitoring of involutive ring trend, follow the tracks of the time dependent situation of cyclization trend size, being chosen in the moment that cyclization trend is less carries out the operation of cyclization solution, improves the success rate of Loop Closing Operation.
Summary of the invention
Technical problem to be solved by this invention is just to provide the online cyclization tide optimization method of a kind of power distribution network rack, guarantees Loop Closing Operation success, improves power supply reliability.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the online cyclization tide optimization method of a kind of power distribution network rack, comprises the steps:
Step 1, topological analysis, determines the network topology of power distribution network, forms the electricity distribution network model that network analysis calculates use, thereby produces calculating topological data;
Step 2, cyclization trend is calculated, the topological data obtaining according to topological analysis result, in conjunction with metric data and load prediction data, the trend before and after involutive ring distributes and calculates;
Step 3, Analysis for Closed Loop, according to calculation of tidal current, after supposing that Loop Closing Operation carries out, the impact that the cyclization trend after assessment and analysis closed loop network causes system, and form assessment and analysis data;
Step 4, figure shows, Analysis for Closed Loop and assessment result are showed to user in the mode of figure or form.
Preferably, described electricity distribution network model adopts XML form, and that described metric data comprises is meritorious, idle, electric current, voltage, gear, switch tool state.
Preferably, described load prediction data are obtained by OPEN3000 platform interface, or from the side of fortune, obtain load prediction EXCEL file.
Preferably, described Analysis for Closed Loop and assessment result graphical format are SVG forms.
The present invention adopts online cyclization tide optimization algorithm to be optimized power distribution network rack, thereby effectively instruct dispatcher to select the Best Times of Loop Closing Operation, guarantee Loop Closing Operation success, guarantee device security, the continuous power supply of assurance to power consumer, improves power supply reliability.
Embodiment
The present invention, by analyzing affecting the key element of electrical network cyclization trend calculating, proposes to be applicable to the solution of electrical network reality.
The online cyclization tide optimization method of power distribution network rack, comprises the steps:
Step 1, topological analysis, determines the network topology of power distribution network, forms the electricity distribution network model that network analysis calculates use, thereby produces calculating topological data;
Step 2, cyclization trend is calculated, the topological data obtaining according to topological analysis result, in conjunction with metric data and load prediction data, the trend before and after involutive ring distributes and calculates;
Step 3, Analysis for Closed Loop, according to calculation of tidal current, after supposing that Loop Closing Operation carries out, the impact that the cyclization trend after assessment and analysis closed loop network causes system, and form assessment and analysis data;
Step 4, figure shows, Analysis for Closed Loop and assessment result are showed to user in the mode of figure or form.
Concrete, described electricity distribution network model adopts XML form, and that described metric data comprises is meritorious, idle, electric current, voltage, gear, switch tool state.Described load prediction data are obtained by OPEN3000 platform interface, or from the side of fortune, obtain load prediction EXCEL file.Described Analysis for Closed Loop and assessment result graphical format are SVG forms.
Claims (4)
1. the online cyclization tide optimization method of power distribution network rack, is characterized in that comprising the steps:
Step 1, topological analysis, determines the network topology of power distribution network, forms the electricity distribution network model that network analysis calculates use, thereby produces calculating topological data;
Step 2, cyclization trend is calculated, the topological data obtaining according to topological analysis result, in conjunction with metric data and load prediction data, the trend before and after involutive ring distributes and calculates;
Step 3, Analysis for Closed Loop, according to calculation of tidal current, after supposing that Loop Closing Operation carries out, the impact that the cyclization trend after assessment and analysis closed loop network causes system, and form assessment and analysis data;
Step 4, figure shows, Analysis for Closed Loop and assessment result are showed to user in the mode of figure or form.
2. the online cyclization tide optimization method of a kind of power distribution network rack according to claim 1, is characterized in that: described electricity distribution network model adopts XML form, and that described metric data comprises is meritorious, idle, electric current, voltage, gear, switch tool state.
3. the online cyclization tide optimization method of a kind of power distribution network rack according to claim 1, is characterized in that: described load prediction data are obtained by OPEN3000 platform interface, or from the side of fortune, obtains load prediction EXCEL file.
4. the online cyclization tide optimization method of a kind of power distribution network rack according to claim 1, is characterized in that: described Analysis for Closed Loop and assessment result graphical format are SVG forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537543.2A CN103647273A (en) | 2013-11-04 | 2013-11-04 | Power distribution network structure on-line loop closing flow optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537543.2A CN103647273A (en) | 2013-11-04 | 2013-11-04 | Power distribution network structure on-line loop closing flow optimization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103647273A true CN103647273A (en) | 2014-03-19 |
Family
ID=50252456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310537543.2A Pending CN103647273A (en) | 2013-11-04 | 2013-11-04 | Power distribution network structure on-line loop closing flow optimization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103647273A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200390A (en) * | 2014-06-20 | 2014-12-10 | 重庆邮电大学 | Power network reliability analysis method based on cellular automaton |
| CN106970999A (en) * | 2017-04-12 | 2017-07-21 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of BPA Database Modelings and maintaining method |
| CN108256178A (en) * | 2017-12-29 | 2018-07-06 | 国网天津市电力公司电力科学研究院 | A kind of closed loop network electric current on-line calculation method |
| CN117691606A (en) * | 2024-02-04 | 2024-03-12 | 安徽长瑞科技有限公司 | AC/DC probability power flow algorithm and execution device of power system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431255A (en) * | 2008-11-17 | 2009-05-13 | 国电南瑞科技股份有限公司 | Closed loop operation risk analysis method for power system |
| CN101908763A (en) * | 2010-07-23 | 2010-12-08 | 广东电网公司中山供电局 | Method for controlling distribution network closed loop |
| CN102708299A (en) * | 2012-05-23 | 2012-10-03 | 中国电力科学研究院 | Method for analyzing risks of provincial and local cooperated closing-loop operation |
| CN102983594A (en) * | 2012-11-22 | 2013-03-20 | 安徽省电力公司黄山供电公司 | Control method of grid closed loop operation impact current |
-
2013
- 2013-11-04 CN CN201310537543.2A patent/CN103647273A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431255A (en) * | 2008-11-17 | 2009-05-13 | 国电南瑞科技股份有限公司 | Closed loop operation risk analysis method for power system |
| CN101908763A (en) * | 2010-07-23 | 2010-12-08 | 广东电网公司中山供电局 | Method for controlling distribution network closed loop |
| CN102708299A (en) * | 2012-05-23 | 2012-10-03 | 中国电力科学研究院 | Method for analyzing risks of provincial and local cooperated closing-loop operation |
| CN102983594A (en) * | 2012-11-22 | 2013-03-20 | 安徽省电力公司黄山供电公司 | Control method of grid closed loop operation impact current |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200390A (en) * | 2014-06-20 | 2014-12-10 | 重庆邮电大学 | Power network reliability analysis method based on cellular automaton |
| CN104200390B (en) * | 2014-06-20 | 2019-01-29 | 重庆邮电大学 | Electric power networks analysis method for reliability based on cellular automaton |
| CN106970999A (en) * | 2017-04-12 | 2017-07-21 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of BPA Database Modelings and maintaining method |
| CN106970999B (en) * | 2017-04-12 | 2020-11-17 | 中国能源建设集团湖南省电力设计院有限公司 | BPA database modeling and maintaining method |
| CN108256178A (en) * | 2017-12-29 | 2018-07-06 | 国网天津市电力公司电力科学研究院 | A kind of closed loop network electric current on-line calculation method |
| CN117691606A (en) * | 2024-02-04 | 2024-03-12 | 安徽长瑞科技有限公司 | AC/DC probability power flow algorithm and execution device of power system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Siirto et al. | Optimal distribution network automation considering earth fault events | |
| CN102193504B (en) | Safety and stability control system modeling method in power system dynamic simulation | |
| CN105576660B (en) | Local distribution network in-circuit emulation analytical equipment and system | |
| CN103779861B (en) | Power distribution network actively reconstruction strategy and prevention and control method thereof | |
| CN104934971B (en) | Dynamic section control method based on power flow transfer ratio | |
| CN102638041B (en) | Method forquickly checking safety and stability of scheduling operation of power system on line | |
| CN103647273A (en) | Power distribution network structure on-line loop closing flow optimization method | |
| Elgenedy et al. | Smart grid self-healing: Functions, applications, and developments | |
| KR20120096774A (en) | Power supply system and method using distributed power system | |
| CN101299533B (en) | Reliability design method for large electric network safety steady cooperativeness defensive system | |
| CN102983594A (en) | Control method of grid closed loop operation impact current | |
| CN104158206B (en) | One kind meter and the probabilistic electricity net safety stable control method of wind-powered electricity generation | |
| CN103560579B (en) | The method of attachment of Distributed Reserve Power Source Automatic Switching device and prepared auto restart method of operating thereof | |
| CN109031044A (en) | A kind of dispatching terminal substation low current single-phase earthing automatic route selection method | |
| CN104297676B (en) | Method, device and system for monitoring circuit breaker of wind generating set | |
| CN113472074A (en) | Intelligent fault handling method and system for intelligent power grid dispatching control system | |
| CN110071499B (en) | Method and system for rapidly judging safety loop closing of power distribution network | |
| CN103915901A (en) | Transformer area load management system | |
| CN106651113A (en) | Dispatcher operation risk evaluation method based on advanced N-1 analysis | |
| CN202550678U (en) | Network communication system used for intelligent transformer substation | |
| CN203883495U (en) | Electromagnetic looped network flow monitoring system matched with measure of generator cutting | |
| CN103944269B (en) | 10-kV grid distribution line pre-operating method and system | |
| CN106157170A (en) | A kind of electric power system dispatching method of controlling operation thereof based on power supply reliability | |
| CN103647349B (en) | A kind of intelligent control method of Masterstation Automation System | |
| Uthitsunthorn et al. | Adaptive over-current relay coordination based on multi-agent system: A case study on transmission line outage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140319 |