CN103532134A - Automatic check method for validity of safety and stability control measure in electric power system - Google Patents
Automatic check method for validity of safety and stability control measure in electric power system Download PDFInfo
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Abstract
The invention relates to an automatic check method for the validity of a safe and stable control measure in an electric power system and belongs to the field of safety and stability analysis technology in the electric power system. The method comprises the steps that the judgment on the type of an operation mode is finished, a fault scene of the safety and stability control measure is simulated, the starting condition of the safety and stability control measure is judged, the safety and stability control measure is subjected to analogue simulation, the check result of the safety and stability control measure is automatically analyzed, and the check on the validity of the safety and stability control measure is finally realized. According to the automatic check method, the whole flow is automatically carried out, manual intervention is not needed, the shortcomings of manual check are avoided, the manual workload is reduced, the time for the check of the safety control measure is shortened, the automation of the whole check flow is realized, the check efficiency is improved, and the requirements for quick check under various operation modes are met.
Description
Technical field
A kind of automatic Verification method that the present invention relates to power system safety and stability control measure validity, belongs to power system safety and stability analysis technical field.
Background technology
After the disturbances such as the tripping operation of electric power system generation double-circuit line on same pole, large capacity unit tripping, need to take the stable operation of the security and stability control measurement keeping systems such as the machine of cutting, cutting load.In real work, by operation of power networks analyst, according to electrical network annual running mode and power network safety operation restrictive condition, formulate preliminary safety and stability control strategy.Yet the actual operating of electric power system is complicated and changeable, so the validity of safety and stability control strategy under actual operating has to be verified.At present, the verifying work of the validity of security and stability control measurement, main by manually using calculating simulation software, specifying under operational mode, manually set fault scenes, progressively add security and stability control measurement, by calculating analogue simulation security and stability control measurement, and analyze the validity that simulation result is observed control measure, until meet safe and stable operation restrictive condition or security and stability control measurement simulation is complete, finally provide the conclusion of security and stability control measurement validity.So, the method of calibration of the validity of existing security and stability control measurement in the judgement of operational mode type, the fault scenes of security and stability control measurement simulation, the entry condition judgement of security and stability control measurement, the analogue simulation of security and stability control measurement are, the aspects such as check results automatic analysis of security and stability control measurement are also too dependent on manual intervention and analysis, workload is huge and consume the plenty of time, and automaticity is not high.
Summary of the invention
The object of the invention is to propose a kind of automatic Verification method of power system safety and stability control measure validity, automatically complete the judgement of operational mode type, the simulation of the fault scenes of security and stability control measurement, the entry condition judgement of security and stability control measurement, the analogue simulation of security and stability control measurement are, whole flow processs of the security and stability control measurement validity checks such as check results automatic analysis of security and stability control measurement, avoid manually carrying out the emulation verification of security and stability control measurement, improve verification efficiency.
The automatic Verification method of the power system safety and stability control measure validity that the present invention proposes, comprises the following steps:
(1) from the data center of electric power system, obtain the safety and stability control information of electric power system, this information comprises: the detailed data of all types of operational mode, the electric power system forecast failure scene corresponding with operational mode type is, entry condition and power system safety and stability control strategy table that power system safety and stability is controlled, and the information of obtaining is above stored in during a safety and stability controls database;
(2) from the data center of electric power system, obtain the real-time running data of electric power system, and real-time running data be converted to the flow data corresponding with current operational mode, by flow data with stored in file format in real-time files folder;
(3) from the data center of electric power system, obtain Power System Off-line and stablize data file, this data file is left in off-line files folder, and the flow data file generating according to step (2), off-line is stablized to data file modifies, obtain a real-time stabilization data file corresponding with current operational mode, and during the stable data file copy in off-line files folder is pressed from both sides to the real-time files of step (2), concrete modification process is as follows;
(3-1) from the flow data file of step (2), read the flow data of a generator;
(3-2) Power System Off-line of obtaining being stablized to data file retrieves, if off-line is stablized the existence stable data corresponding with the generator of step (3-1) in data file, carry out step (3-3), if off-line is stablized in data file, there are not the stable data corresponding with the generator of step (3-1), at off-line, stablize the interpolation stable data corresponding with this generator in data file;
(3-3) flow data of each generator in traversal flow data file, repeating step (3-1) and (3-2);
(3-4) from off-line, stablize the stable data that read a generator data file;
(3-5) the flow data file of step (2) is retrieved, if there is the flow data corresponding with the generator of step (3-4) in flow data file, carry out step (3-6), if there is not the flow data corresponding with the generator of step (3-4) in flow data file, from off-line, stablize the deletion stable data corresponding with this generator data file;
(3-6) repeating step (3-4) and (3-5), traversal off-line is stablized the stable data of each generator in data file, completes modification process;
(4) by the time cycle of setting, the real-time files folder of above-mentioned steps (2) is detected, if there is not new flow data file in real-time files folder, continue the real-time files folder of step (2) to detect; If there is new flow data file in real-time files folder, adopt new flow data file, electric power system is carried out to trend calculating, obtain calculation of tidal current file, and obtain calculation of tidal current data from calculation of tidal current file;
(5) the calculation of tidal current data that obtain according to step (4), obtain the type of current power system operation mode, according to current power system operation mode, from the safety and stability of above-mentioned steps (1) is controlled database, retrieval obtains the detailed data of all forecast failure scenes corresponding with this operational mode type;
(6) from the detailed data of all forecast failure scenes of step (5), read the detailed data of a fault scenes, and according to this detailed data, from the safety and stability database of step (1), obtain the entry condition that power system safety and stability is controlled;
(7) entry condition that the safety and stability of obtaining according to step (6) is controlled, calculation of tidal current data to step (4) judge, if calculation of tidal current data do not meet the entry condition that this safety and stability is controlled, the detailed data of the forecast failure scene corresponding with this entry condition is added in the stable data file that step (3) obtains; If calculation of tidal current data meet the entry condition that this safety and stability is controlled, carry out step (8);
(8) detailed data of the forecast failure scene that the power system operation mode type obtaining according to step (5) and step (6) are obtained, the safety and stability control strategy table search of controlling database from the safety and stability of above-mentioned steps (1) is to corresponding safety and stability control strategy, and the detailed data of this forecast failure scene and safety and stability control strategy are added in the stable data file of step (3);
(9) time cycle of setting according to step (4), stable data file to the real-time files folder of step (2) detects, if stablizing the content of data file does not change, continue to detect, if stablize the content of data file, change,, according to the stable data file of step (7) or step (8), electric power system is carried out to transient stability calculating, obtain transient stability result of calculation file, and obtain transient stability calculation result data from transient stability result of calculation file;
(10) according to the safety and stability requirement of electric power system, above-mentioned transient stability calculation result data is judged, if transient stability calculation result data meets power system safety and stability requirement, in the safety and stability of the result write step (1) of safety and stability control " effectively " being controlled database, if transient stability calculation result data does not meet power system safety and stability requirement, during the safety and stability of safety and stability being controlled to the result write step (1) of engineering noise is controlled database;
(11) repeating step (6), to step (10), travels through all forecast failure scenes;
(12) repeating step (2), to step (12), carries out the verification of security and stability control measurement validity continuously to current operational mode.
The present invention proposes a kind of automatic Verification method of power system safety and stability control measure validity, its feature and advantage are the judgements of operational mode type, the fault scenes simulation of security and stability control measurement, the entry condition judgement of security and stability control measurement, the analogue simulation of security and stability control measurement, whole flow processs of the security and stability control measurement validity checks such as the check results automatic analysis of security and stability control measurement complete automatically, without manual intervention, avoided the deficiency of manual verification, reduced labor workload, shortened the time of security control measure verification, realized the automation of whole checking process, improved the efficiency of verification, met the demand of quick verification under various operational modes.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of the automatic Verification method of the power system safety and stability control measure validity that proposes of the present invention.
Embodiment
The automatic Verification method of the power system safety and stability control measure validity that the present invention proposes, its FB(flow block) as shown in Figure 1, comprises the following steps:
(1) from the data center of electric power system, obtain the safety and stability control information of electric power system, this information comprises: the detailed data of all types of operational mode, the electric power system forecast failure scene corresponding with operational mode type is, entry condition and power system safety and stability control strategy table that power system safety and stability is controlled, and the information of obtaining is above stored in during a safety and stability controls database;
(2) from the data center of electric power system, obtain the real-time running data of electric power system, and real-time running data be converted to the flow data corresponding with current operational mode, by flow data with stored in file format in real-time files folder;
(3) from the data center of electric power system, obtain Power System Off-line and stablize data file, this data file is left in off-line files folder, and the flow data file generating according to step (2), off-line is stablized to data file modifies, obtain a real-time stabilization data file corresponding with current operational mode, and during the stable data file copy in off-line files folder is pressed from both sides to the real-time files of step (2), concrete modification process is as follows;
(3-1) from the flow data file of step (2), read the flow data of a generator;
(3-2) Power System Off-line of obtaining being stablized to data file retrieves, if off-line is stablized the existence stable data corresponding with the generator of step (3-1) in data file, carry out step (3-3), if off-line is stablized in data file, there are not the stable data corresponding with the generator of step (3-1), at off-line, stablize the interpolation stable data corresponding with this generator in data file;
(3-3) flow data of each generator in traversal flow data file, repeating step (3-1) and (3-2);
(3-4) from off-line, stablize the stable data that read a generator data file;
(3-5) the flow data file of step (2) is retrieved, if there is the flow data corresponding with the generator of step (3-4) in flow data file, carry out step (3-6), if there is not the flow data corresponding with the generator of step (3-4) in flow data file, from off-line, stablize the deletion stable data corresponding with this generator data file;
(3-6) repeating step (3-4) and (3-5), traversal off-line is stablized the stable data of each generator in data file, completes modification process;
(4) by the time cycle of setting, the real-time files folder of above-mentioned steps (2) is detected, if there is not new flow data file in real-time files folder, continue the real-time files folder of step (2) to detect; If there is new flow data file in real-time files folder, adopt new flow data file, electric power system is carried out to trend calculating, obtain calculation of tidal current file, and obtain calculation of tidal current data from calculation of tidal current file;
(5) the calculation of tidal current data that obtain according to step (4), obtain the type of current power system operation mode, according to current power system operation mode, from the safety and stability of above-mentioned steps (1) is controlled database, retrieval obtains the detailed data of all forecast failure scenes corresponding with this operational mode type;
(6) from the detailed data of all forecast failure scenes of step (5), read the detailed data of a fault scenes, and according to this detailed data, from the safety and stability database of step (1), obtain the entry condition that power system safety and stability is controlled;
(7) entry condition that the safety and stability of obtaining according to step (6) is controlled, calculation of tidal current data to step (4) judge, if calculation of tidal current data do not meet the entry condition that this safety and stability is controlled, the detailed data of the forecast failure scene corresponding with this entry condition is added in the stable data file that step (3) obtains; If calculation of tidal current data meet the entry condition that this safety and stability is controlled, carry out step (8);
(8) detailed data of the forecast failure scene that the power system operation mode type obtaining according to step (5) and step (6) are obtained, the safety and stability control strategy table search of controlling database from the safety and stability of above-mentioned steps (1) is to corresponding safety and stability control strategy, and the detailed data of this forecast failure scene and safety and stability control strategy are added in the stable data file of step (3);
(9) time cycle of setting according to step (4), stable data file to the real-time files folder of step (2) detects, if stablizing the content of data file does not change, continue to detect, if stablize the content of data file, change,, according to the stable data file of step (7) or step (8), electric power system is carried out to transient stability calculating, obtain transient stability result of calculation file, and obtain transient stability calculation result data from transient stability result of calculation file;
(10) according to the safety and stability requirement of electric power system, above-mentioned transient stability calculation result data is judged, if transient stability calculation result data meets power system safety and stability requirement, in the safety and stability of the result write step (1) of safety and stability control " effectively " being controlled database, if transient stability calculation result data does not meet power system safety and stability requirement, during the safety and stability of safety and stability being controlled to the result write step (1) of engineering noise is controlled database;
(11) repeating step (6), to step (10), travels through all forecast failure scenes;
(12) repeating step (2), to step (12), carries out the verification of security and stability control measurement validity continuously to current operational mode.
Claims (1)
1. an automatic Verification method for power system safety and stability control measure validity, is characterized in that the method comprises the following steps:
(1) from the data center of electric power system, obtain the safety and stability control information of electric power system, this information comprises: the detailed data of all types of operational mode, the electric power system forecast failure scene corresponding with operational mode type is, entry condition and power system safety and stability control strategy table that power system safety and stability is controlled, and the information of obtaining is above stored in during a safety and stability controls database;
(2) from the data center of electric power system, obtain the real-time running data of electric power system, and real-time running data be converted to the flow data corresponding with current operational mode, by flow data with stored in file format in real-time files folder;
(3) from the data center of electric power system, obtain Power System Off-line and stablize data file, this data file is left in off-line files folder, and the flow data file generating according to step (2), off-line is stablized to data file modifies, obtain a real-time stabilization data file corresponding with current operational mode, and during the stable data file copy in off-line files folder is pressed from both sides to the real-time files of step (2), concrete modification process is as follows;
(3-1) from the flow data file of step (2), read the flow data of a generator;
(3-2) Power System Off-line of obtaining being stablized to data file retrieves, if off-line is stablized the existence stable data corresponding with the generator of step (3-1) in data file, carry out step (3-3), if off-line is stablized in data file, there are not the stable data corresponding with the generator of step (3-1), at off-line, stablize the interpolation stable data corresponding with this generator in data file;
(3-3) flow data of each generator in traversal flow data file, repeating step (3-1) and (3-2);
(3-4) from off-line, stablize the stable data that read a generator data file;
(3-5) the flow data file of step (2) is retrieved, if there is the flow data corresponding with the generator of step (3-4) in flow data file, carry out step (3-6), if there is not the flow data corresponding with the generator of step (3-4) in flow data file, from off-line, stablize the deletion stable data corresponding with this generator data file;
(3-6) repeating step (3-4) and (3-5), traversal off-line is stablized the stable data of each generator in data file, completes modification process;
(4) by the time cycle of setting, the real-time files folder of above-mentioned steps (2) is detected, if there is not new flow data file in real-time files folder, continue the real-time files folder of step (2) to detect; If there is new flow data file in real-time files folder, adopt new flow data file, electric power system is carried out to trend calculating, obtain calculation of tidal current file, and obtain calculation of tidal current data from calculation of tidal current file;
(5) the calculation of tidal current data that obtain according to step (4), obtain the type of current power system operation mode, according to current power system operation mode, from the safety and stability of above-mentioned steps (1) is controlled database, retrieval obtains the detailed data of all forecast failure scenes corresponding with this operational mode type;
(6) from the detailed data of all forecast failure scenes of step (5), read the detailed data of a fault scenes, and according to this detailed data, from the safety and stability database of step (1), obtain the entry condition that power system safety and stability is controlled;
(7) entry condition that the safety and stability of obtaining according to step (6) is controlled, calculation of tidal current data to step (4) judge, if calculation of tidal current data do not meet the entry condition that this safety and stability is controlled, the detailed data of the forecast failure scene corresponding with this entry condition is added in the stable data file that step (3) obtains; If calculation of tidal current data meet the entry condition that this safety and stability is controlled, carry out step (8);
(8) detailed data of the forecast failure scene that the power system operation mode type obtaining according to step (5) and step (6) are obtained, the safety and stability control strategy table search of controlling database from the safety and stability of above-mentioned steps (1) is to corresponding safety and stability control strategy, and the detailed data of this forecast failure scene and safety and stability control strategy are added in the stable data file of step (3);
(9) time cycle of setting according to step (4), stable data file to the real-time files folder of step (2) detects, if stablizing the content of data file does not change, continue to detect, if stablize the content of data file, change,, according to the stable data file of step (7) or step (8), electric power system is carried out to transient stability calculating, obtain transient stability result of calculation file, and obtain transient stability calculation result data from transient stability result of calculation file;
(10) according to the safety and stability requirement of electric power system, above-mentioned transient stability calculation result data is judged, if transient stability calculation result data meets power system safety and stability requirement, in the safety and stability of the result write step (1) of safety and stability control " effectively " being controlled database, if transient stability calculation result data does not meet power system safety and stability requirement, during the safety and stability of safety and stability being controlled to the result write step (1) of engineering noise is controlled database;
(11) repeating step (6), to step (10), travels through all forecast failure scenes;
(12) repeating step (2), to step (12), carries out the verification of security and stability control measurement validity continuously to current operational mode.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108448573A (en) * | 2018-03-20 | 2018-08-24 | 国电南瑞科技股份有限公司 | The adaptive remediation policy in line closed loop emergency control system plant stand end |
| CN108776711A (en) * | 2018-03-07 | 2018-11-09 | 中国电力科学研究院有限公司 | A kind of electrical power system transient sample data extracting method and system |
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| JP2009112093A (en) * | 2007-10-29 | 2009-05-21 | Toshiba Corp | Electric power system monitoring control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108776711A (en) * | 2018-03-07 | 2018-11-09 | 中国电力科学研究院有限公司 | A kind of electrical power system transient sample data extracting method and system |
| CN108448573A (en) * | 2018-03-20 | 2018-08-24 | 国电南瑞科技股份有限公司 | The adaptive remediation policy in line closed loop emergency control system plant stand end |
| CN108448573B (en) * | 2018-03-20 | 2021-02-23 | 国电南瑞科技股份有限公司 | On-line closed loop emergency control system plant station end self-adaptive remediation strategy |
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