CN113569555A - Method and system for deducing change of power grid topological structure along with time sequence - Google Patents
Method and system for deducing change of power grid topological structure along with time sequence Download PDFInfo
- Publication number
- CN113569555A CN113569555A CN202110850902.4A CN202110850902A CN113569555A CN 113569555 A CN113569555 A CN 113569555A CN 202110850902 A CN202110850902 A CN 202110850902A CN 113569555 A CN113569555 A CN 113569555A
- Authority
- CN
- China
- Prior art keywords
- load
- name
- bus
- power supply
- power
- 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
- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000008859 change Effects 0.000 title claims abstract description 25
- 238000012216 screening Methods 0.000 claims abstract description 9
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012502 risk assessment Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/20—Natural language analysis
- G06F40/205—Parsing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N5/00—Computing arrangements using knowledge-based models
- G06N5/02—Knowledge representation; Symbolic representation
- G06N5/022—Knowledge engineering; Knowledge acquisition
- G06N5/025—Extracting rules from data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Economics (AREA)
- Computational Linguistics (AREA)
- Human Resources & Organizations (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Tourism & Hospitality (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- Data Mining & Analysis (AREA)
- Evolutionary Computation (AREA)
- Computing Systems (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The application discloses a method and a system for deducing the change of a power grid topological structure along with time sequence, wherein the method comprises the following steps: acquiring mode single information and power grid real-time topological structure information; screening out a mode list of which the state is a to-be-started state in the mode list information, dividing power failure notice items of the mode list into a plurality of statement sets, and extracting statements with preset keywords in the statement sets; based on the real-time topological structure information of the power grid, the method comprises the following steps of: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a converter plus the name of a line, combining the name of a 10kV bus with the name of a converter plus a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence pattern of a main transformer bus respectively to obtain load adjustment information of each sentence. The maintenance plan is quickly and automatically analyzed through the computer, so that the rule method of the power grid topological structure changing along with the sequence is efficiently, quickly and accurately obtained, and the technical problems that a large amount of labor cost is consumed and real-time, accurate and efficient requirements are difficultly met in the prior art are solved.
Description
Technical Field
The application relates to the technical field of electric power, in particular to a method and a system for deducing the change of a power grid topological structure along with a time sequence.
Background
The equipment load and the real-time risk of the power grid are closely related to the topology structure of the power grid. When the intelligent technology is applied to carry out load prediction of power grid equipment and prediction of real-time operation risk change conditions of a power grid, the condition that a power grid topological structure changes along with time needs to be accurately mastered. The most core element causing the change of the topological structure is a maintenance plan except unforeseen accident conditions, wherein the maintenance plan refers to arrangement of power failure maintenance of power grid equipment and comprises power failure equipment names, power failure and power transmission time and other arrangement of power grid operation modes matched and adjusted. At present, the method for developing load prediction and risk analysis generally needs to manually interpret the overhaul list characters and then deduce calculation one by one according to a real-time operation mode.
Disclosure of Invention
The application provides a method and a system for deducing the change of a power grid topological structure along with a time sequence, which are used for solving the technical problems that a large amount of labor cost is hard to consume and the requirements of real-time, accuracy and high efficiency are hard to meet in the prior art.
In view of the above, a first aspect of the present application provides a method for deducing a change of a power grid topology in an order, the method comprising:
s1, acquiring mode single information and power grid real-time topological structure information;
s2, screening out the mode sheet with the state of waiting for operation in the mode sheet information, dividing the power failure notice of the mode sheet into a plurality of statement sets, and extracting the statements with preset keywords in the statement sets;
s3, based on the real-time topological structure information of the power grid, the real-time topological structure information of the power grid comprises the following keywords: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a line, combining the name of a 10kV bus with the name of a converting bus with a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence patterns of the main transformer bus respectively to obtain load adjustment information of the sentences.
Optionally, after step S3, the method further includes:
acquiring short-term load prediction data of equipment;
and adjusting the short-term load forecasting data of the equipment according to the load adjusting information to obtain the adjusted short-term load forecasting data of the equipment.
Optionally, when the sentence includes the keyword as the sub-score column, step S3 specifically includes:
singly extracting the name of the transformer substation through the statement or the mode corresponding to the statement, and extracting the name of a power supply line and the name of a 110kV bus through the statement;
according to the name of the 110kV bus and the real-time topological structure information of the power grid, a 110kV main transformer mounted on the 110kV bus is obtained, and the 110kV main transformer is set as a main transformer needing to adjust a power supply point;
acquiring an original 220kV power supply point of the 110kV main transformer according to the 110kV main transformer and the real-time topological structure information of the power grid, and setting the original 220kV power supply point as a 220kV power supply point before adjustment;
recording the load of the main transformer obtained by subtracting the power supply point needing to be adjusted from the 220kV power supply point before adjustment as the load adjustment information;
obtaining a 220kV power supply point of the 110kV line according to the 110kV line formed by the 110kV bus and the 110kV main transformer and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
and adding the main transformer of the power supply point needing to be adjusted and the load of the adjusted 220kV power supply point, and recording the sum as the load adjustment information.
Optionally, when the sentence includes the keyword as the translation list, step S3 specifically includes:
extracting the name of the transformer substation according to the statement or the mode corresponding to the statement;
when the transformer substation belongs to a 220kV transformer substation, a 110kV main transformer mounted by the transformer substation is obtained according to the transformer substation and the real-time topological structure information of the power grid;
recording the load of the 110kV main transformer subtracted from the transformer substation as the load adjustment information, and recording the half of the sum of the load of the 110kV main transformer and the load of the transformer substation as the load adjustment information;
when the name of the transformer substation does not belong to the name of the 220kV transformer substation, acquiring a 220kV power supply point corresponding to the transformer substation according to the real-time topological structure information of the transformer substation and the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
recording the load obtained by subtracting the transformer substation from the original 220kV power point as the load adjustment information;
obtaining a 110kV line according to the format of the statement, setting the 110kV line as an adjusted power supply line, obtaining a 220kV power point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power point as an adjusted 220kV power point;
and recording the sum of the adjusted 220kV power point and the load of the transformer substation as the load adjustment information.
Optionally, when the statement includes a keyword that is a combination of the substation name + transfer + line name, step S3 specifically includes:
singly extracting the name of the transformer substation through the statement or the mode corresponding to the statement, acquiring a 220kV power point of the transformer substation according to the name of the transformer substation and the real-time topological structure information of the power grid, and setting the 220kV power point as an original 220kV power point;
recording the load obtained by subtracting the transformer substation from the original 220kV power point as the load adjustment information;
obtaining a 110kV line according to the format of the statement, setting the 110kV line as an adjusted power supply line, obtaining a 220kV power point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power point as an adjusted 220kV power point;
and recording the sum of the adjusted 220kV power point and the load of the transformer substation as the load adjustment information.
Optionally, when the sentence includes a combination of a keyword of 10kV bus name + transfer + buscouple switch or main transformer name, the step S3 specifically includes:
the name of the transformer substation is extracted through the statement or the mode corresponding to the statement, and a 10kV bus to be adjusted through the statement is obtained;
acquiring a main transformer power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load obtained by subtracting the 10kV bus from the main transformer power supply point as the load adjustment information;
when the transformer substation is a 110kV transformer substation, acquiring a 220kV power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load obtained by subtracting the 10kV bus from the 220kV power supply point as the load adjustment information;
when the statement supplies power to the rotary switch and the rotary bus-coupled switch, acquiring the bus-coupled switch, acquiring a main transformer of the local station on the other side of the bus-coupled switch based on the real-time topological structure information of the power grid, and setting the main transformer of the local station as a power supply point of the main transformer of the local station after adjustment;
when the statement supplies power to the rotary switch but not the rotary bus coupler switch, acquiring a main transformer power supply point of the adjusted main transformer for the main transformer through keywords;
recording the sum of the adjusted main transformer power supply point of the station and the 10kV bus as the load adjustment information;
and acquiring 220kV power supply points of main transformer power supply points of the station after the integration based on the real-time topological structure information of the power grid, and recording the 220kV power supply points after increasing line loads as the load adjustment information.
Optionally, when the statement belongs to a main transformer bus-supplying sentence pattern, step S3 specifically includes:
singly extracting the name of the transformer substation through the statement or the mode corresponding to the statement, setting a main transformer containing main transformer keywords in the statement as an adjusted main transformer power point of the current station, and extracting all 10kV buses to be adjusted in the statement;
acquiring a main transformer power supply point of the current station traversing the 10kV bus based on the real-time topological structure information of the power grid, and obtaining load adjustment information by subtracting the load of the 10kV bus from the main transformer power supply point of the current station and adding the load of the 10kV bus to the main transformer power supply point of the current station;
when the transformer substation is a 110kV transformer substation, acquiring a 220kV power point of a current traversing bus based on the real-time topological structure information of the power grid, subtracting the load of the 10kV bus from the 220kV power point, and recording the load of the 10kV bus added to the 220kV power point as the load adjustment information.
Optionally, the adjusting the short-term load forecast data of the device according to the load adjustment information to obtain the adjusted short-term load forecast data of the device specifically includes:
acquiring all adjustment information of which the adjustment time is greater than the current time in the load adjustment information;
when the adjustment starting time of the adjustment information is greater than the current time, if the adjustment type of the adjustment information is increased, load increasing operation is carried out, otherwise, load reducing operation is carried out;
and when the adjustment starting time of the adjustment information is not more than the current time, performing load increase restoration operation if the adjustment type of the adjustment information is increased, otherwise, performing load decrease restoration operation.
A second aspect of the present application provides a system for deducing changes in power grid topology over time, the system comprising:
the first acquisition module is used for acquiring the mode single information and the real-time topological structure information of the power grid;
the extraction module is used for screening out the mode list of which the state is the to-be-started state in the mode list information, dividing the power failure notice items of the mode list into a plurality of statement sets, and extracting the statements with preset keywords in the statement sets;
the analysis module is used for analyzing the keyword containing: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a line, combining the name of a 10kV bus with the name of a converting bus with a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence patterns of the main transformer bus respectively to obtain load adjustment information of the sentences.
Optionally, the method further comprises:
the second acquisition module is used for acquiring short-term load prediction data of the equipment;
and the adjusting module is used for adjusting the equipment short-term load forecasting data according to the load adjusting information to obtain the adjusted equipment short-term load forecasting data.
According to the technical scheme, the method has the following advantages:
the application provides a method for deducing the change of the power grid topological structure along with the sequence, S1, obtaining mode single information and power grid real-time topological structure information; s2, screening out a mode sheet with a state of a to-be-started state in the mode sheet information, dividing power failure notes of the mode sheet into a plurality of statement sets, and extracting statements with preset keywords in the statement sets; s3, based on the real-time topological structure information of the power grid, the method comprises the following steps: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a converter plus the name of a line, combining the name of a 10kV bus with the name of a converter plus a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence pattern of a main transformer bus respectively to obtain load adjustment information of each sentence. According to the method, the maintenance plan is quickly and automatically analyzed by using the computer system, so that the rule method that the power grid topological structure changes along with the sequence is efficiently, quickly and accurately obtained, and the technical problems that a large amount of labor cost is consumed and the requirements of real-time performance, accuracy and efficiency are difficult to meet in the prior art are solved.
Drawings
Fig. 1 is a schematic flowchart of a first embodiment of a method for deducing a change of a power grid topology with time sequence provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of a second embodiment of a method for deducing a change of a power grid topology with time sequence provided in the embodiment of the present application;
fig. 3 is a schematic structural diagram of an embodiment of a system for deducing a change of a power grid topology with time sequence provided in an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic flowchart illustrating a first embodiment of a method for deducing a change of a power grid topology with time sequence according to an embodiment of the present application.
The method for deducing the change of the power grid topological structure along with the time sequence provided by the embodiment of the application comprises the following steps:
It should be noted that, in this embodiment, the mode list information is acquired from the Guangdong power grid operation management system (DICP system), and is stored in the mode list information table of the local database. And acquiring the real-time topological structure information of the power grid from a dispatching intelligent assistant decision cockpit (GADAS) and storing the information into a topological information table of a local database.
And 102, screening out the mode list with the state of the to-be-started state in the mode list information, dividing the power failure notice of the mode list into a plurality of statement sets, and extracting the statements with preset keywords in the statement sets.
It can be understood that, in the embodiment, all manner lists with the state in the state of waiting for operation are screened out firstly; taking out the power failure notice items of the current mode list, taking the line feed symbols as the segmentation conditions, and splitting the power failure notice items of the mode list into a plurality of statement sets for subsequent analysis; the statements with keywords 'verify', 'confirm' are then filtered.
103, based on the real-time topological structure information of the power grid, the method comprises the following key words: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a converter plus the name of a line, combining the name of a 10kV bus with the name of a converter plus a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence pattern of a main transformer bus respectively to obtain load adjustment information of each sentence.
For step 103, in one specific embodiment, when the sentence contains the keyword as the sub-column:
and singly extracting the name of the transformer substation through a statement or a mode corresponding to the statement, and extracting the name of a power supply line and the name of a 110kV bus through the statement.
It should be noted that, by judging whether the current sentence contains the keyword 'station' and the name belongs to the name of the substation, if the current sentence belongs to the name of the substation, the name of the substation is extracted; otherwise, the position of the keyword 'station' is found from the change reason information of the current mode list, and the first two words of the position are intercepted to obtain the name of the transformer substation. And extracting the name of the power supply line from the characters from the keyword 'turning' to the keyword 'distribution' from the current statement, and extracting the name of the 110kV bus from the characters from the keyword 'distribution' to the keyword 'bus'.
According to the name of the 110kV bus and the real-time topological structure information of the power grid, a 110kV main transformer mounted on the 110kV bus is obtained, and the 110kV main transformer is set as a main transformer needing to adjust a power point.
According to the 110kV main transformer and the real-time topological structure information of the power grid, an original 220kV power point of the 110kV main transformer is obtained, and the original 220kV power point is set as a 220kV power point before adjustment.
And recording the load of the main transformer which needs to adjust the power supply point subtracted from the 220kV power supply point before adjustment as load adjustment information.
And obtaining a 220kV power supply point of the 110kV line according to the 110kV line formed by the 110kV bus and the 110kV main transformer and the real-time topological structure information of the power grid, and setting the 220kV power supply point as the adjusted 220kV power supply point.
And adding the main transformer of which the power supply point needs to be adjusted and the load of the adjusted 220kV power supply point, and recording the sum as load adjustment information.
For step 103, in one embodiment, when the statement contains a keyword as a meta-tile:
and (4) extracting the name of the transformer substation in a mode corresponding to the sentence or the sentence.
It should be noted that, similar to the previous embodiment, the present embodiment determines whether the current statement includes the keyword 'station' and the name belongs to the substation name. If the name belongs to the name of the transformer substation, finding the position of a keyword 'station' from the current sentence, and simultaneously intercepting the first two words of the position to obtain the name of the transformer substation; otherwise, the position of the keyword 'station' is found from the change reason information of the current mode list, and the first two words of the position are intercepted to obtain the name of the transformer substation.
And when the transformer substation belongs to a 220kV transformer substation, acquiring a 110kV main transformer mounted by the transformer substation according to the real-time topological structure information of the transformer substation and the power grid.
It can be understood that whether the transformer substation obtained through the steps belongs to a 220kV transformer substation is judged firstly, and if the transformer substation belongs to the 220kV transformer substation, a 110kV main transformer mounted on the transformer substation is obtained through analysis according to the real-time topological structure information of the transformer substation and the power grid.
And recording the load of the 110kV main transformer subtracted from the transformer substation as load adjustment information, and recording the half sum of the load of the 110kV main transformer and the load of the transformer substation as the load adjustment information.
And when the name of the transformer substation does not belong to the name of the 220kV transformer substation, acquiring a 220kV power supply point corresponding to the transformer substation according to the real-time topological structure information of the transformer substation and the power grid, and setting the 220kV power supply point as the original 220kV power supply point.
And recording the load obtained by subtracting the transformer substation from the original 220kV power point as load adjustment information.
And obtaining a 110kV line according to the form of the statement, setting the 110kV line as an adjusted power supply line, obtaining a 220kV power point of the power supply line according to the real-time topological structure information of the power supply line and the power grid, and setting the 220kV power point as the adjusted 220kV power point.
And recording the sum of the adjusted 220kV power point and the load of the transformer substation as load adjustment information.
For step 103, in a specific embodiment, when the sentence includes a combination of the keyword substation name + to + line name:
it should be noted that, it is determined whether a statement has a keyword 'turn', and the keyword 'turn' is preceded by a substation name and followed by a line name, and if so, the statement includes a combination of a 10kV bus name + turn + buscouple switch or a main transformer name as a keyword.
Singly extracting the name of the transformer substation in a mode corresponding to a sentence or a sentence, acquiring a 220kV power point of the transformer substation according to the name of the transformer substation and the real-time topological structure information of the power grid, and setting the 220kV power point as an original 220kV power point;
recording the load obtained by subtracting the transformer substation from the original 220kV power point as load adjustment information;
obtaining a 110kV line according to the format of the statement, setting the 110kV line as an adjusted power supply line, obtaining a 220kV power point of the power supply line according to the real-time topological structure information of the power supply line and the power grid, and setting the 220kV power point as the adjusted 220kV power point;
and recording the sum of the adjusted 220kV power point and the load of the transformer substation as load adjustment information.
For step 103, in a specific embodiment, when the sentence includes a combination of the keyword 10kV bus name + turn + buscouple switch or main transformer name:
it should be noted that, it is determined whether a statement has a keyword 'turn', and the keyword 'turn' is preceded by the name of the 10kV bus and followed by the name of the buscouple switch (or the main transformer), if so, the statement includes a combination of the keyword of the name of the 10kV bus + turn + buscouple switch or the main transformer.
And (4) the name of the transformer substation is extracted through the statement or the mode corresponding to the statement, and the 10kV bus to be adjusted through the statement is obtained.
It should be noted that the 10kV bus to be adjusted is obtained from the current statement according to the analysis and extraction of the keywords '#' and 'M', that is, the 10kV bus to be adjusted in the statement is obtained.
And acquiring a main transformer power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load of subtracting the 10kV bus from the main transformer power supply point as load adjustment information.
When the transformer substation is a 110kV transformer substation, acquiring a 220kV power point of a 10kV bus based on the real-time topological structure information of the power grid, and recording the load obtained by subtracting the 10kV bus from the 220kV power point as load adjustment information.
When the statement supplies power for the rotary switch and supplies power for the rotary bus-coupled switch, the bus-coupled switch is obtained, the main transformer of the station on the other side of the bus-coupled switch is obtained based on the real-time topological structure information of the power grid, and the main transformer of the station is set as a power supply point of the main transformer of the station after adjustment.
When the statement supplies power for the rotary switch but not for the rotary bus coupler switch, the power supply point of the main transformer of the adjusted station is obtained for the main transformer through the keywords.
And recording the sum of the main transformer power supply point and the 10kV bus of the adjusted station as load adjustment information.
And acquiring 220kV power supply points of main transformer power supply points of the station after integration based on the real-time topological structure information of the power grid, and recording the 220kV power supply points after increasing line loads as load adjustment information.
For step 103, in one specific embodiment, when the statement belongs to a master transformer supply bus statement:
and the name of the transformer substation is extracted in a mode corresponding to the sentence or the sentence, a main transformer containing main transformer keywords in the sentence is set as an adjusted main transformer power point of the current station, and all 10kV buses to be adjusted in the sentence are extracted.
It should be noted that, in the present embodiment, all 10kV busbars that need to be adjusted, that is, all 10kV busbars to be adjusted, are obtained from the current statement by analyzing and extracting the keywords '#', 'M'.
Based on the real-time topological structure information of the power grid, acquiring a main transformer power supply point of the current station traversing a 10kV bus, and subtracting the load of the 10kV bus from the main transformer power supply point of the current station and adding the load of the 10kV bus to the main transformer power supply point of the current station, wherein the load records are load adjustment information.
When the transformer substation is a 110kV transformer substation, acquiring a 220kV power point of a current traversing bus based on the real-time topological structure information of the power grid, subtracting the load of a 10kV bus from the 220kV power point, and adding the load of the 10kV bus to the 220kV power point to be recorded as load adjustment information.
The application provides a method for deducing the change of the power grid topological structure along with the sequence, S1, obtaining mode single information and power grid real-time topological structure information; s2, screening out a mode sheet with a state of a to-be-started state in the mode sheet information, dividing power failure notes of the mode sheet into a plurality of statement sets, and extracting statements with preset keywords in the statement sets; s3, based on the real-time topological structure information of the power grid, the method comprises the following steps: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a converter plus the name of a line, combining the name of a 10kV bus with the name of a converter plus a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence pattern of a main transformer bus respectively to obtain load adjustment information of each sentence. According to the method, the maintenance plan is quickly and automatically analyzed by using the computer system, so that the rule method that the power grid topological structure changes along with the sequence is efficiently, quickly and accurately obtained, and the technical problems that a large amount of labor cost is consumed and the requirements of real-time performance, accuracy and efficiency are difficult to meet in the prior art are solved.
The above is a first embodiment of a method for deducing a change of a power grid topology along with an order provided in the embodiments of the present application, and the following is a first embodiment of a method for deducing a change of a power grid topology along with an order provided in the embodiments of the present application.
Referring to fig. 2, fig. 2 is a flowchart illustrating a second embodiment of a method for deducing a change of a power grid topology with time sequence according to an embodiment of the present application.
The method for deducing the change of the power grid topological structure along with the sequence provided by the embodiment of the application comprises the following steps:
It should be noted that, the description of the steps 201-203 is the same as that of the steps 101-103 in the embodiment, and please refer to the description of the steps 101-103, which is not repeated herein.
And step 204, acquiring short-term load prediction data of the equipment.
And step 205, adjusting the short-term load forecasting data of the equipment according to the load adjusting information to obtain the adjusted short-term load forecasting data of the equipment.
For step 205, in a specific embodiment, specifically:
and acquiring all the adjustment information of which the adjustment time is greater than the current time in the load adjustment information.
And when the adjustment starting time of the adjustment information is greater than the current time, performing load increasing operation if the adjustment type of the adjustment information is increased, and otherwise, performing load reducing operation.
It should be noted that the load increasing operation specifically includes: and according to the currently traversed adjusting information, increasing the load of the adjusted equipment at the corresponding time point of the adjusting equipment according to the load prediction data of the adjusted equipment in the adjusting time period. The load reduction operation specifically comprises the following steps: and according to the currently traversed adjusting information, reducing the load of the adjusted equipment at the corresponding time point of the adjusting equipment according to the load prediction data of the adjusted equipment in the adjusting time period.
And when the adjustment starting time of the adjustment information is not more than the current time, performing load increase restoration operation if the adjustment type of the adjustment information is increased, and otherwise, performing load decrease restoration operation.
It is to be noted that the addition of the reduction operation specifically includes: and according to the currently traversed adjusting information, reducing the load of the adjusted equipment at the corresponding time point of the adjusting equipment according to the load prediction data of the adjusted equipment after the adjusting ending time. The reduction operation is specifically as follows: and according to the currently traversed adjustment information, increasing the load of the corresponding time point of the adjustment equipment by the load prediction data of the adjusted equipment after the adjustment ending time.
The second embodiment of the method for deducing the change of the power grid topology along with the sequence provided in the embodiment of the present application is as follows.
Referring to the drawings, fig. 3 is a structural diagram of an embodiment of a system for deducing a change of a power grid topology with time sequence provided in an embodiment of the present application.
The system for deducing the change of the power grid topological structure along with the sequence provided by the embodiment II of the application comprises:
the first obtaining module 301 is configured to obtain mode information and power grid real-time topological structure information;
the extraction module 302 is configured to screen out a mode sheet with a state to be a to-be-started state from the mode sheet information, divide power outage notices of the mode sheet into a plurality of statement sets, and extract statements with preset keywords in the statement sets;
an analysis module 303, configured to perform a comparison on the content-containing keywords: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a converter plus the name of a line, combining the name of a 10kV bus with the name of a converter plus a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence pattern of a main transformer bus respectively to obtain load adjustment information of each sentence.
Further, the embodiment of the present application further includes:
a second obtaining module 304, configured to obtain the device short-term load prediction data.
And an adjusting module 305, configured to adjust the short-term load prediction data of the device according to the load adjustment information, so as to obtain adjusted short-term load prediction data of the device.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the modules described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The terms "first," "second," "third," "fourth," and the like in the description of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method for deducing the change of a power grid topological structure along with time sequence is characterized by comprising the following steps:
s1, acquiring mode single information and power grid real-time topological structure information;
s2, screening out the mode sheet with the state of waiting for operation in the mode sheet information, dividing the power failure notice of the mode sheet into a plurality of statement sets, and extracting the statements with preset keywords in the statement sets;
s3, based on the real-time topological structure information of the power grid, the real-time topological structure information of the power grid comprises the following keywords: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a line, combining the name of a 10kV bus with the name of a converting bus with a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence patterns of the main transformer bus respectively to obtain load adjustment information of the sentences.
2. The method of deducting changes in power grid topology in time sequence as claimed in claim 1, further comprising, after step S3:
acquiring short-term load prediction data of equipment;
and adjusting the short-term load forecasting data of the equipment according to the load adjusting information to obtain the adjusted short-term load forecasting data of the equipment.
3. The method according to claim 1, wherein when said statement contains a keyword as said transcript, step S3 specifically comprises:
singly extracting the name of the transformer substation through the statement or the mode corresponding to the statement, and extracting the name of a power supply line and the name of a 110kV bus through the statement;
according to the name of the 110kV bus and the real-time topological structure information of the power grid, a 110kV main transformer mounted on the 110kV bus is obtained, and the 110kV main transformer is set as a main transformer needing to adjust a power supply point;
acquiring an original 220kV power supply point of the 110kV main transformer according to the 110kV main transformer and the real-time topological structure information of the power grid, and setting the original 220kV power supply point as a 220kV power supply point before adjustment;
recording the load of the main transformer obtained by subtracting the power supply point needing to be adjusted from the 220kV power supply point before adjustment as the load adjustment information;
obtaining a 220kV power supply point of the 110kV line according to the 110kV line formed by the 110kV bus and the 110kV main transformer and the real-time topological structure information of the power grid, and setting the 220kV power supply point as an adjusted 220kV power supply point;
and adding the main transformer of the power supply point needing to be adjusted and the load of the adjusted 220kV power supply point, and recording the sum as the load adjustment information.
4. The method according to claim 1, wherein when said statement contains a keyword as said transformed parallel, step S3 specifically comprises:
extracting the name of the transformer substation according to the statement or the mode corresponding to the statement;
when the transformer substation belongs to a 220kV transformer substation, a 110kV main transformer mounted by the transformer substation is obtained according to the transformer substation and the real-time topological structure information of the power grid;
recording the load of the 110kV main transformer subtracted from the transformer substation as the load adjustment information, and recording the half of the sum of the load of the 110kV main transformer and the load of the transformer substation as the load adjustment information;
when the name of the transformer substation does not belong to the name of the 220kV transformer substation, acquiring a 220kV power supply point corresponding to the transformer substation according to the real-time topological structure information of the transformer substation and the power grid, and setting the 220kV power supply point as an original 220kV power supply point;
recording the load obtained by subtracting the transformer substation from the original 220kV power point as the load adjustment information;
obtaining a 110kV line according to the format of the statement, setting the 110kV line as an adjusted power supply line, obtaining a 220kV power point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power point as an adjusted 220kV power point;
and recording the sum of the adjusted 220kV power point and the load of the transformer substation as the load adjustment information.
5. The method for deducing the chronological changes of the topological structure of the power grid according to claim 1, wherein when said statement contains a keyword which is a combination of said substation name + transfer + line name, step S3 specifically comprises:
singly extracting the name of the transformer substation through the statement or the mode corresponding to the statement, acquiring a 220kV power point of the transformer substation according to the name of the transformer substation and the real-time topological structure information of the power grid, and setting the 220kV power point as an original 220kV power point;
recording the load obtained by subtracting the transformer substation from the original 220kV power point as the load adjustment information;
obtaining a 110kV line according to the format of the statement, setting the 110kV line as an adjusted power supply line, obtaining a 220kV power point of the power supply line according to the power supply line and the real-time topological structure information of the power grid, and setting the 220kV power point as an adjusted 220kV power point;
and recording the sum of the adjusted 220kV power point and the load of the transformer substation as the load adjustment information.
6. The method according to claim 1, wherein when said statement contains a combination of 10kV bus name + turn + bust switch or main transformer name as a keyword, step S3 specifically comprises:
the name of the transformer substation is extracted through the statement or the mode corresponding to the statement, and a 10kV bus to be adjusted through the statement is obtained;
acquiring a main transformer power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load obtained by subtracting the 10kV bus from the main transformer power supply point as the load adjustment information;
when the transformer substation is a 110kV transformer substation, acquiring a 220kV power supply point of the 10kV bus based on the real-time topological structure information of the power grid, and recording the load obtained by subtracting the 10kV bus from the 220kV power supply point as the load adjustment information;
when the statement supplies power to the rotary switch and the rotary bus-coupled switch, acquiring the bus-coupled switch, acquiring a main transformer of the local station on the other side of the bus-coupled switch based on the real-time topological structure information of the power grid, and setting the main transformer of the local station as a power supply point of the main transformer of the local station after adjustment;
when the statement supplies power to the rotary switch but not the rotary bus coupler switch, acquiring a main transformer power supply point of the adjusted main transformer for the main transformer through keywords;
recording the sum of the adjusted main transformer power supply point of the station and the 10kV bus as the load adjustment information;
and acquiring 220kV power supply points of main transformer power supply points of the station after the integration based on the real-time topological structure information of the power grid, and recording the 220kV power supply points after increasing line loads as the load adjustment information.
7. The method according to claim 1, wherein when said statement belongs to a main transformer supply bus statement, step S3 specifically includes:
singly extracting the name of the transformer substation through the statement or the mode corresponding to the statement, setting a main transformer containing main transformer keywords in the statement as an adjusted main transformer power point of the current station, and extracting all 10kV buses to be adjusted in the statement;
acquiring a main transformer power supply point of the current station traversing the 10kV bus based on the real-time topological structure information of the power grid, and obtaining load adjustment information by subtracting the load of the 10kV bus from the main transformer power supply point of the current station and adding the load of the 10kV bus to the main transformer power supply point of the current station;
when the transformer substation is a 110kV transformer substation, acquiring a 220kV power point of a current traversing bus based on the real-time topological structure information of the power grid, subtracting the load of the 10kV bus from the 220kV power point, and recording the load of the 10kV bus added to the 220kV power point as the load adjustment information.
8. The method according to claim 2, wherein the adjusting the device short-term load prediction data according to the load adjustment information to obtain the adjusted device short-term load prediction data specifically comprises:
acquiring all adjustment information of which the adjustment time is greater than the current time in the load adjustment information;
when the adjustment starting time of the adjustment information is greater than the current time, if the adjustment type of the adjustment information is increased, load increasing operation is carried out, otherwise, load reducing operation is carried out;
and when the adjustment starting time of the adjustment information is not more than the current time, performing load increase restoration operation if the adjustment type of the adjustment information is increased, otherwise, performing load decrease restoration operation.
9. A system for deducing changes in power grid topology over time, comprising:
the first acquisition module is used for acquiring the mode single information and the real-time topological structure information of the power grid;
the extraction module is used for screening out the mode list of which the state is the to-be-started state in the mode list information, dividing the power failure notice items of the mode list into a plurality of statement sets, and extracting the statements with preset keywords in the statement sets;
the analysis module is used for analyzing the keyword containing: the method comprises the steps of converting into columns, converting into parallel, combining the name of a transformer substation with the name of a line, combining the name of a 10kV bus with the name of a converting bus with a bus coupler switch or the name of a main transformer, and analyzing sentences belonging to the sentence patterns of the main transformer bus respectively to obtain load adjustment information of the sentences.
10. The system of chronological changes in deductive grid topology of claim 9, further comprising:
the second acquisition module is used for acquiring short-term load prediction data of the equipment;
and the adjusting module is used for adjusting the equipment short-term load forecasting data according to the load adjusting information to obtain the adjusted equipment short-term load forecasting data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850902.4A CN113569555A (en) | 2021-07-27 | 2021-07-27 | Method and system for deducing change of power grid topological structure along with time sequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850902.4A CN113569555A (en) | 2021-07-27 | 2021-07-27 | Method and system for deducing change of power grid topological structure along with time sequence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113569555A true CN113569555A (en) | 2021-10-29 |
Family
ID=78167946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110850902.4A Pending CN113569555A (en) | 2021-07-27 | 2021-07-27 | Method and system for deducing change of power grid topological structure along with time sequence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113569555A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090281674A1 (en) * | 2008-05-09 | 2009-11-12 | Taft Jeffrey D | Method and system for managing a power grid |
| WO2016062179A1 (en) * | 2014-10-24 | 2016-04-28 | 南京南瑞继保电气有限公司 | Method for implementing plan security check on the basis of power grid operation service bus |
| CN106789294A (en) * | 2016-12-29 | 2017-05-31 | 北京市天元网络技术股份有限公司 | Circuit allocation mode form processing method and device |
| CN109412141A (en) * | 2018-09-28 | 2019-03-01 | 广东电网有限责任公司 | A kind of method of power grid 220kV main transformer N-1 risk power grid automatically scanning analysis |
| CN109840675A (en) * | 2018-12-11 | 2019-06-04 | 深圳供电局有限公司 | Intelligently turn electric application system and method under a kind of distribution network failure state |
| CN110348597A (en) * | 2019-05-31 | 2019-10-18 | 广东电网有限责任公司 | A kind of power grid 110kV main transformer short term curve prediction method |
| CN110348596A (en) * | 2019-05-31 | 2019-10-18 | 广东电网有限责任公司 | A kind of power grid 220kV main transformer short term curve prediction method |
| CN110363326A (en) * | 2019-05-31 | 2019-10-22 | 广东电网有限责任公司 | A kind of power grid 110kV route short term curve prediction method |
| CN110633842A (en) * | 2019-08-20 | 2019-12-31 | 广州供电局有限公司 | 220kV bus load prediction result adjustment method, system, medium and equipment |
| CN112085285A (en) * | 2020-09-14 | 2020-12-15 | 南方电网数字电网研究院有限公司 | Bus load prediction method and device, computer equipment and storage medium |
| CN112531709A (en) * | 2021-01-01 | 2021-03-19 | 谭世克 | Power grid topology configuration method |
| CN112561248A (en) * | 2020-11-27 | 2021-03-26 | 国电南瑞南京控制***有限公司 | Intelligent analysis and control method and system for power failure plan of main and distribution network dispatching |
| US11063472B1 (en) * | 2020-03-03 | 2021-07-13 | Topolonet Corporation | Topology identification and state estimation of power grids |
-
2021
- 2021-07-27 CN CN202110850902.4A patent/CN113569555A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090281674A1 (en) * | 2008-05-09 | 2009-11-12 | Taft Jeffrey D | Method and system for managing a power grid |
| WO2016062179A1 (en) * | 2014-10-24 | 2016-04-28 | 南京南瑞继保电气有限公司 | Method for implementing plan security check on the basis of power grid operation service bus |
| CN106789294A (en) * | 2016-12-29 | 2017-05-31 | 北京市天元网络技术股份有限公司 | Circuit allocation mode form processing method and device |
| CN109412141A (en) * | 2018-09-28 | 2019-03-01 | 广东电网有限责任公司 | A kind of method of power grid 220kV main transformer N-1 risk power grid automatically scanning analysis |
| CN109840675A (en) * | 2018-12-11 | 2019-06-04 | 深圳供电局有限公司 | Intelligently turn electric application system and method under a kind of distribution network failure state |
| CN110348596A (en) * | 2019-05-31 | 2019-10-18 | 广东电网有限责任公司 | A kind of power grid 220kV main transformer short term curve prediction method |
| CN110348597A (en) * | 2019-05-31 | 2019-10-18 | 广东电网有限责任公司 | A kind of power grid 110kV main transformer short term curve prediction method |
| CN110363326A (en) * | 2019-05-31 | 2019-10-22 | 广东电网有限责任公司 | A kind of power grid 110kV route short term curve prediction method |
| CN110633842A (en) * | 2019-08-20 | 2019-12-31 | 广州供电局有限公司 | 220kV bus load prediction result adjustment method, system, medium and equipment |
| US11063472B1 (en) * | 2020-03-03 | 2021-07-13 | Topolonet Corporation | Topology identification and state estimation of power grids |
| CN112085285A (en) * | 2020-09-14 | 2020-12-15 | 南方电网数字电网研究院有限公司 | Bus load prediction method and device, computer equipment and storage medium |
| CN112561248A (en) * | 2020-11-27 | 2021-03-26 | 国电南瑞南京控制***有限公司 | Intelligent analysis and control method and system for power failure plan of main and distribution network dispatching |
| CN112531709A (en) * | 2021-01-01 | 2021-03-19 | 谭世克 | Power grid topology configuration method |
Non-Patent Citations (2)
| Title |
|---|
| 熊胜源;罗文;林祯敏;袁荣湘;刘栋;: "电网运行方式专家***构建探讨", 广西电力, no. 04, 28 August 2012 (2012-08-28) * |
| 郭建成;钱静;陈光;张伟;杜鹏;崔立忠;尚学伟;: "智能配电网调度控制***技术方案", 电力***自动化, no. 01, 10 January 2015 (2015-01-10) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111682534B (en) | Method for analyzing batch transfer scheme of feeder lines of power distribution network | |
| CN109710647B (en) | Power grid standing book data fusion method and device based on keyword search | |
| CN106815373B (en) | Distribution network first-aid repair big data display method and system based on BI analysis | |
| CN103532745A (en) | Metering online monitoring system based on power user power consumption information acquisition system | |
| CN103326467A (en) | Protection action report implementation method based on information protection main station device recorded information | |
| CN112906174B (en) | Intelligent analysis method and system for grid problem of distribution network self-healing line | |
| CN113189418B (en) | Topological relation identification method based on voltage data | |
| CN104360835A (en) | Automatic sequential control operation ticket generation method based on topologic mode | |
| CN110825834A (en) | Method and system for measuring correlation matching between automation terminal data and GIS system distribution transformer and readable storage medium | |
| CN113344364B (en) | Power failure plan risk analysis method and device, electronic equipment and storage medium | |
| CN111861186A (en) | Method for detecting power grid risk event and acquiring power failure equipment | |
| CN110633268B (en) | Configuration system and configuration method for relay protection level difference of automatic switch of distribution line | |
| CN110633842B (en) | 220kV bus load prediction result adjustment method, system, medium and equipment | |
| CN113569555A (en) | Method and system for deducing change of power grid topological structure along with time sequence | |
| CN104598713A (en) | Power grid theoretical line loss computation demand data synthesizing method | |
| CN113256178B (en) | Distribution network operation mode rationality evaluation method and system | |
| CN112256922B (en) | Method and system for quickly identifying faults and power failure | |
| CN114912426A (en) | Automatic batch filling method for operation order library and related device | |
| CN114860790A (en) | Marketing meter reading abnormity analysis system | |
| CN109787285B (en) | Method and system for deciding new energy machine group grid-connected scheme | |
| CN112926951A (en) | Equipment transaction identification method and device | |
| CN112949271A (en) | Maintenance safety measure analysis method and system | |
| CN113449266B (en) | Closed loop power supply statistical method based on hand-in-hand line | |
| Billinton et al. | State extension in adequacy evaluation of composite power systems—concept and algorithm | |
| CN111159620B (en) | Method and system for evaluating minimum rotatable power of power distribution network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |