CN104184153A - Automatic wiring mode identification method for 10 kV power distribution network cable networks - Google Patents
Automatic wiring mode identification method for 10 kV power distribution network cable networks Download PDFInfo
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- CN104184153A CN104184153A CN201410410712.0A CN201410410712A CN104184153A CN 104184153 A CN104184153 A CN 104184153A CN 201410410712 A CN201410410712 A CN 201410410712A CN 104184153 A CN104184153 A CN 104184153A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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Abstract
An automatic wiring mode identification method for 10 kV power distribution network cable networks includes the steps of grouping analysis, feature extraction and mode identification. The grouping analysis step includes the steps of conducting grouping on the 10 kV power distribution network cable networks, and determining power supplies, outgoing lines and loads in the groups through grouping. The feature extraction step includes the steps of analyzing the wiring mode groups, selecting the features which can completely represent the wiring modes in the wiring mode groups so that the feature expressions which can describe the wiring mode groups can be achieved, analyzing the typical wiring mode of existing 10 kV power distribution network cable networks, and forming a wiring mode matching rule base according to the typical features of an existing standard wiring mode. The mode identification step includes the steps of matching the feature expressions with the typical wiring mode in the wiring mode matching rule base through a computer, and finally obtaining the name of the wiring mode. The method is easy to master and operate and easy to understand, and an actual operator can conveniently master the method.
Description
Technical field
The invention belongs to power distribution network mode of connection automatic identification technology field, particularly relate to a kind of 10kV power distribution network cable system mode of connection automatic identifying method.
Background technology
At present, in electric power system, the research of the 10kV power distribution network cable system mode of connection is mainly adopted to following several method:
(1) 10kV power distribution network mode of connection analytical method:
The method presses the conventional mode of connection of 10kV power distribution network to carry out analyzing relatively and research from the aspect such as economy, reliability centering, and has provided the power network wiring mode of recommending according to the load density of different regions and power supply reliability conditions of demand.
But its shortcoming is to be to be only mainly studied for economy and the reliability of the mode of connection for the mode of connection, and the selection of the 10kV power distribution network mode of connection, does not relate to the research that butted line mode is identified.
(2) 10kV Distribution Network Frame abortive haul mode of connection recognition methods:
The method is taking outlet tree as fundamental analysis unit, and topological analysis Network Based and pattern recognition theory are identified the Urban Medium Voltage Distribution Network mode of connection.This method is better to 10kV Distribution Network Frame abortive haul mode of connection recognition effect.
But its shortcoming is due to the model Shortcomings part of setting up, and therefore cannot identify well the 10kV power distribution network cable system mode of connection.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of 10kV power distribution network cable system mode of connection automatic identifying method.
In order to achieve the above object, 10kV power distribution network cable system mode of connection automatic identifying method provided by the invention comprises the following step carrying out in order:
Step 1) fractional analysis: first planning personnel carries out packet transaction to 10kV power distribution network cable system, determines power supply, outlet, load in group by dividing into groups; The method of mode of connection grouping is taking outlet as unit, analyzes the contact of setting up by interconnection switch or interconnection between outlet, and outlet also sets up contact by load, searches by circulation, finds out mutual associated load, finally establishes mode of connection group;
Step 2) feature extraction: planning personnel analyzes above-mentioned mode of connection group, selects enough to represent in the mode of connection group feature of this mode of connection, thereby forms the feature representation formula that can describe mode of connection group; By existing 10kV power distribution network cable system typical wiring mode is analyzed, utilize existing standard mode of connection characteristic feature to form mode of connection matching rule base simultaneously;
Step 3) pattern recognition: utilize computer that above-mentioned feature representation formula is mated with the typical wiring mode in mode of connection matching rule base, finally obtain the title of the mode of connection, and constantly update mode of connection matching rule base.
In step 1) in, described mode of connection identification group technology comprises the following steps:
Step 1) travel through S01 stage of all outlets: all outlets in 10kV power distribution network cable system to be identified are aggregated in traversal list in order, then extract one by one the information of circuit;
Step 2) S02 stage of other outlets of obtaining being associated: according to the order of circuit in traversal list, get a circuit, find out the All other routes that are associated with it by interconnection switch;
Step 3) S03 stage of the results list: the information of this circuit and the All other routes that are associated is with it listed in result table;
Step 4) S04 stage of the load that obtains being associated: by the power supply relation of circuit and load, obtain the load being associated with these outlets in result table;
Step 5) judge the S05 stage whether load also has other outlet to contact with it: judge whether load also contacts by interconnection switch and other outlet, if judged result is "Yes", next step enters the S07 stage, otherwise enters next step S06 stage;
Step 6) remove and S06 stage of completing grouping: those outlets that are not associated with other load in result table are removed in traversal list and complete grouping;
Step 7) insert S07 stage of result table: the above-mentioned outlet that those find out by contact relation is inserted in result table;
Step 8) travel through S08 stage of these outlets: the circuit that those are found out by communication relationship re-starts step 2) to step 6) processing;
Step 9) judge the S09 stage whether traversal completes: judge whether traversal completes, if judged result is "Yes", this flow process so far finishes, otherwise next step reenters the S01 stage, continue identification grouping flow process.
In step 2) in, the specific practice of described feature extraction is: planning personnel is by analyzing the feature of power supply, outlet, load in mode of connection group, extraction can represent the feature of this three part, feature comprises: power supply number, power supply buses number, power supply outlet number, outlet correlate, outlet segments, the on high-tension side station of load station internal wiring mode, then utilize these features jointly to form 10kV power distribution network cable system mode of connection feature representation formula Ch:
Ch＝(s，m，c，l，n,，j)
In formula: s represents power supply number in mode of connection group to be identified;
M represents power supply buses number in mode of connection group to be identified;
C represents power supply outlet number in mode of connection group to be identified;
L represents mode of connection group power supply outlet correlate to be identified: if not contact, l=0, if there is interconnection, l=1, other, l=2;
N represents power supply outlet segments in mode of connection group to be identified;
J represents on high-tension side station, mode of connection group internal loading to be identified station internal wiring mode: if access way is T wiring, and j=1, if access way is π wiring, j=2, if access way is T π mixing wiring, j=3, other, j=0.
In step 2) in, described existing standard mode of connection characteristic feature comprises power source features, power source bus feature, rack outlet feature, load station access features, load station station internal wiring mode.
In step 3) in, described mode identification method comprises the steps:
3.1) by the feature representation formula of Computer Analysis mode of connection group, and contrast with the typical wiring mode in mode of connection matching rule base, adopt the principle of characteristic matching to identify the mode of connection of 10kV power distribution network cable system;
3.2) mode of connection that can not mate for mode of connection matching rule base is added in mode of connection matching rule base after confirming its reasonability.
The beneficial effect of 10kV power distribution network cable system mode of connection automatic identifying method provided by the invention:
(1) this method is in the time analyzing the identification 10kV power distribution network cable system mode of connection, not only consider the single problem of 10kV power distribution network cable outlet identification, globality and the sustainable developability of 10kV power distribution network cable system power supply, outlet, load have been considered, therefore more science, comprehensively of this analytical method simultaneously.
(2) this method provides useful reference for distribution network planning personnel carry out the analysis of 10kV power distribution network cable system, for distribution network planning work in the future provides strong technical support.
(3) this method is easy to grasp and operation, is easily understood, and facilitates practical operation personnel skillfully to grasp.
Brief description of the drawings
Fig. 1 is the flow chart of 10kV power distribution network cable system mode of connection automatic identifying method provided by the invention.
Fig. 2 is the flow chart of mode of connection identification grouping.
Embodiment
Along with socioeconomic development, 10kV power distribution network has had fast development.In 10kV distribution network planning, the selection of Connection Mode plays an important role to the overall situation of Electric Power Network Planning.Because 10kV distribution network line quantity is huge, cable rate improves year by year, contact is related to complexity, the mode of connection workload of the whole 10kV power distribution network of manual identified cable system is huge, so be necessary to propose a kind of 10kV power distribution network cable system mode of connection automatic identifying method, then use this automatic identifying method to identify the mode of connection of whole 10kV power distribution network cable system by computer.By the recognition result of the mode of connection, can fully understand the architectural feature of 10kV power distribution network cable system, find its weak link, for electric network reconstruction and planning are offered suggestions.
Below in conjunction with the drawings and specific embodiments, 10kV power distribution network cable system mode of connection automatic identifying method provided by the invention is elaborated.
As shown in Figure 1,10kV power distribution network cable system mode of connection automatic identifying method provided by the invention comprises the following step carrying out in order:
Step 1) fractional analysis: 10kV power distribution network has complex structure and the huge feature of equipment amount, how from complicated structure and equipment, to find out different typical wiring modes, first planning personnel need to carry out packet transaction to 10kV power distribution network cable system, determine power supply, outlet, load in group by dividing into groups, then could analyze this three part respectively.Grouping is the basis of carrying out mode of connection identification.The method of mode of connection grouping is taking outlet as unit, analyzes the contact of setting up by interconnection switch or interconnection between outlet, and outlet also sets up contact by load, searches by circulation, finds out mutual associated load, finally establishes mode of connection group;
Step 2) feature extraction: in order to reach the object of mode of connection identification, planning personnel need to analyze above-mentioned mode of connection group, select enough to represent in the mode of connection group feature of this mode of connection, require its quantity as far as possible few simultaneously, thereby form the feature representation formula that can describe mode of connection group, so that butted line mode is classified and described effectively; By existing 10kV power distribution network cable system typical wiring mode is analyzed, utilize existing standard mode of connection characteristic feature to form mode of connection matching rule base simultaneously;
Step 3) pattern recognition: utilize computer that above-mentioned feature representation formula is mated with the typical wiring mode in mode of connection matching rule base, finally obtain the title of the mode of connection, and constantly update mode of connection matching rule base.
As shown in Figure 2, in step 1) in, described mode of connection identification group technology comprises the following steps:
Step 1) travel through S01 stage of all outlets: all outlets in 10kV power distribution network cable system to be identified are aggregated in traversal list in order, then extract one by one the information of circuit;
Step 2) S02 stage of other outlets of obtaining being associated: according to the order of circuit in traversal list, get a circuit, find out the All other routes that are associated with it by interconnection switch;
Step 3) S03 stage of the results list: the information of this circuit and the All other routes that are associated is with it listed in result table;
Step 4) S04 stage of the load that obtains being associated: by the power supply relation of circuit and load, obtain the load being associated with these outlets in result table;
Step 5) judge the S05 stage whether load also has other outlet to contact with it: judge whether load also contacts by interconnection switch and other outlet, if judged result is "Yes", next step enters the S07 stage, otherwise enters next step S06 stage;
Step 6) remove and S06 stage of completing grouping: those outlets that are not associated with other load in result table are removed in traversal list and complete grouping;
Step 7) insert S07 stage of result table: the above-mentioned outlet that those find out by contact relation is inserted in result table;
Step 8) travel through S08 stage of these outlets: the circuit that those are found out by communication relationship re-starts step 2) to step 6) processing;
Step 9) judge the S09 stage whether traversal completes: judge whether traversal completes, if judged result is "Yes", this flow process so far finishes, otherwise next step reenters the S01 stage, continue identification grouping flow process.
In step 2) in, the specific practice of described feature extraction is: planning personnel is by analyzing the feature of power supply, outlet, load in mode of connection group, extraction can represent the feature of this three part, feature comprises: power supply number, power supply buses number, power supply outlet number, outlet correlate, outlet segments, the on high-tension side station of load station internal wiring mode, then utilize these features jointly to form 10kV power distribution network cable system mode of connection feature representation formula Ch:
Ch＝(s，m，c，l，n,，j)
In formula: s represents power supply number in mode of connection group to be identified;
M represents power supply buses number in mode of connection group to be identified;
C represents power supply outlet number in mode of connection group to be identified;
L represents mode of connection group power supply outlet correlate to be identified: if not contact, l=0, if there is interconnection, l=1, other, l=2;
N represents power supply outlet segments in mode of connection group to be identified;
J represents on high-tension side station, mode of connection group internal loading to be identified station internal wiring mode: if access way is T wiring, and j=1, if access way is π wiring, j=2, if access way is T π mixing wiring, j=3, other, j=0.
In step 2) in, described existing standard mode of connection characteristic feature comprises power source features, power source bus feature, rack outlet feature, load station access features, load station station internal wiring mode.
In step 3) in, described mode identification method comprises the steps:
3.1) by the feature representation formula of Computer Analysis mode of connection group, and contrast with the typical wiring mode in mode of connection matching rule base, adopt the principle of characteristic matching to identify the mode of connection of 10kV power distribution network cable system;
3.2) mode of connection that can not mate for mode of connection matching rule base is added in mode of connection matching rule base after confirming its reasonability.
Claims (5)
1. a 10kV power distribution network cable system mode of connection automatic identifying method, is characterized in that: described 10kV power distribution network cable system mode of connection automatic identifying method comprises the following step carrying out in order:
Step 1) fractional analysis: first planning personnel carries out packet transaction to 10kV power distribution network cable system, determines power supply, outlet, load in group by dividing into groups; The method of mode of connection grouping is taking outlet as unit, analyzes the contact of setting up by interconnection switch or interconnection between outlet, and outlet also sets up contact by load, searches by circulation, finds out mutual associated load, finally establishes mode of connection group;
Step 2) feature extraction: planning personnel analyzes above-mentioned mode of connection group, selects enough to represent in the mode of connection group feature of this mode of connection, thereby forms the feature representation formula that can describe mode of connection group; By existing 10kV power distribution network cable system typical wiring mode is analyzed, utilize existing standard mode of connection characteristic feature to form mode of connection matching rule base simultaneously;
Step 3) pattern recognition: utilize computer that above-mentioned feature representation formula is mated with the typical wiring mode in mode of connection matching rule base, finally obtain the title of the mode of connection, and constantly update mode of connection matching rule base.
2. 10kV power distribution network cable system mode of connection automatic identifying method according to claim 1, is characterized in that: in step 1) in, described mode of connection identification group technology comprises the following steps:
Step 1) travel through S01 stage of all outlets: all outlets in 10kV power distribution network cable system to be identified are aggregated in traversal list in order, then extract one by one the information of circuit;
Step 2) S02 stage of other outlets of obtaining being associated: according to the order of circuit in traversal list, get a circuit, find out the All other routes that are associated with it by interconnection switch;
Step 3) S03 stage of the results list: the information of this circuit and the All other routes that are associated is with it listed in result table;
Step 4) S04 stage of the load that obtains being associated: by the power supply relation of circuit and load, obtain the load being associated with these outlets in result table;
Step 5) judge the S05 stage whether load also has other outlet to contact with it: judge whether load also contacts by interconnection switch and other outlet, if judged result is "Yes", next step enters the S07 stage, otherwise enters next step S06 stage;
Step 6) remove and S06 stage of completing grouping: those outlets that are not associated with other load in result table are removed in traversal list and complete grouping;
Step 7) insert S07 stage of result table: the above-mentioned outlet that those find out by contact relation is inserted in result table;
Step 8) travel through S08 stage of these outlets: the circuit that those are found out by communication relationship re-starts step 2) to step 6) processing;
Step 9) judge the S09 stage whether traversal completes: judge whether traversal completes, if judged result is "Yes", this flow process so far finishes, otherwise next step reenters the S01 stage, continue identification grouping flow process.
3. 10kV power distribution network cable system mode of connection automatic identifying method according to claim 1, it is characterized in that: in step 2) in, the specific practice of described feature extraction is: planning personnel is by analyzing power supply in mode of connection group, outlet, the feature of load, extraction can represent the feature of this three part, feature comprises: power supply number, power supply buses number, power supply outlet number, outlet correlate, outlet segments, the on high-tension side station of load station internal wiring mode, then utilize these features jointly to form 10kV power distribution network cable system mode of connection feature representation formula Ch:
Ch＝(s，m，c，l，n,，j)
In formula: s represents power supply number in mode of connection group to be identified;
M represents power supply buses number in mode of connection group to be identified;
C represents power supply outlet number in mode of connection group to be identified;
L represents mode of connection group power supply outlet correlate to be identified: if not contact, l=0, if there is interconnection, l=1, other, l=2;
N represents power supply outlet segments in mode of connection group to be identified;
J represents on high-tension side station, mode of connection group internal loading to be identified station internal wiring mode: if access way is T wiring, and j=1, if access way is π wiring, j=2, if access way is T π mixing wiring, j=3, other, j=0.
4. 10kV power distribution network cable system mode of connection automatic identifying method according to claim 1, it is characterized in that: in step 2) in, described existing standard mode of connection characteristic feature comprises power source features, power source bus feature, rack outlet feature, load station access features, load station station internal wiring mode.
5. 10kV power distribution network cable system mode of connection automatic identifying method according to claim 1, is characterized in that: in step 3) in, described mode identification method comprises the steps:
3.1) by the feature representation formula of Computer Analysis mode of connection group, and contrast with the typical wiring mode in mode of connection matching rule base, adopt the principle of characteristic matching to identify the mode of connection of 10kV power distribution network cable system;
3.2) mode of connection that can not mate for mode of connection matching rule base is added in mode of connection matching rule base after confirming its reasonability.
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| CN201410410712.0A CN104184153A (en) | 2014-08-20 | 2014-08-20 | Automatic wiring mode identification method for 10 kV power distribution network cable networks |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106154094A (en) * | 2015-03-30 | 2016-11-23 | 北京航天计量测试技术研究所 | A kind of method utilizing cable system tester to carry out cable system self study test |
| CN110988517A (en) * | 2019-11-11 | 2020-04-10 | 珠海许继电气有限公司 | Power distribution station topology self-recognition system and method |
| CN111884209A (en) * | 2020-07-22 | 2020-11-03 | 海南电网有限责任公司 | Medium-voltage line typical wiring pattern recognition method based on characteristic quantity extraction |
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| US5734586A (en) * | 1995-05-05 | 1998-03-31 | Cornell Research Foundation, Inc. | System for achieving optimal steady state in power distribution networks |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154094A (en) * | 2015-03-30 | 2016-11-23 | 北京航天计量测试技术研究所 | A kind of method utilizing cable system tester to carry out cable system self study test |
| CN110988517A (en) * | 2019-11-11 | 2020-04-10 | 珠海许继电气有限公司 | Power distribution station topology self-recognition system and method |
| CN111884209A (en) * | 2020-07-22 | 2020-11-03 | 海南电网有限责任公司 | Medium-voltage line typical wiring pattern recognition method based on characteristic quantity extraction |
| CN111884209B (en) * | 2020-07-22 | 2024-01-05 | 海南电网有限责任公司 | Characteristic quantity extraction-based medium-voltage line typical wiring mode identification method |
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Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
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Application publication date: 20141203 |