CN116961215A - Rapid fault response processing method for power system - Google Patents
Rapid fault response processing method for power system Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
- H02J3/0012—Contingency detection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
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Abstract
The invention discloses a rapid response processing method for a power system fault, and relates to the technical field of power system fault processing; the method comprises the following steps: acquiring real-time data of a power system; acquiring data of the power system in real time through a sensor and monitoring equipment which are arranged in the power system, wherein the data comprise voltage, current and frequency parameters; establishing a mathematical model; according to the acquired real-time data, a mathematical model is established for describing the running state and fault characteristics of the power system; and analyzing fault characteristics. According to the rapid response processing method for the faults of the power system, which is provided by the invention, the real-time monitoring of all aspects of the power system can be realized by the real-time data acquisition function, and the fault condition can be found in time; for example, by installing various sensors and monitoring equipment, parameters such as current, voltage, temperature and the like of the power system can be monitored in real time, and monitoring results are transmitted to the fault automatic processing module for processing.
Description
Technical Field
The invention relates to the technical field of power system fault processing, in particular to a power system fault rapid reaction processing method.
Background
The power system is one of the indispensable infrastructures in the modern society, and is an electric energy production and consumption system consisting of links of power generation, transformation, transmission, distribution, electricity consumption and the like; the main function of the system is that primary energy in nature is converted into electric energy through a power generation power device, and then the electric energy is supplied to each load center through a power transmission system, a power transformation system and a power distribution system.
The reliability and management efficiency of the operation of the power system are of great significance to the development of national economy and society. However, as the power system is continuously developed and expanded, the power system is inevitably subject to various faults. The traditional automatic fault processing method has certain limitations.
Therefore, how to realize real-time monitoring of all aspects of the power system and discover the fault condition in time, and quickly and accurately judge the fault type and the position of the power system is a problem to be considered.
Through retrieval, the patent with the Chinese patent application number of CN201810450672.0 discloses a power failure detection method and a device, the method is based on a browser and a server BS framework, the BS framework comprises an intranet database server, an extranet database server which is in data synchronization with the intranet database server, a failure detection terminal which is communicated with the intranet database server, and a power information monitoring master station which is communicated with the extranet database server, and is applied to the failure detection terminal, and the method comprises the following steps: receiving an electric power fault signal transmitted by an intranet database server; acquiring power operation information of a power information monitoring master station corresponding to the gate-off signal from an external network database server according to the power failure signal; and analyzing the power operation information to obtain a detection result. The detection method in the above patent has the following disadvantages: although the detection requirements can be met, the self-processing and self-repairing functions cannot be realized, and the improvement is still needed.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a rapid response processing method for power system faults.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a rapid response processing method for power system faults comprises the following steps:
s1: acquiring real-time data of a power system; acquiring data of the power system in real time through a sensor and monitoring equipment which are arranged in the power system, wherein the data comprise voltage, current and frequency parameters;
s2: establishing a mathematical model; according to the acquired real-time data, a mathematical model is established for describing the running state and fault characteristics of the power system;
s3: analyzing fault characteristics; identifying fault features existing in the power system through analysis of the data model;
s4: starting a fault automatic processing program; matching in a fault library according to the identified fault characteristics, and starting a fault automatic processing program according to a matching result; the program automatically adjusts the running state of the power system according to the fault characteristics;
s5: monitoring and evaluating in real time; in the automatic fault processing process, the running state of the power system is monitored and evaluated in real time so as to ensure the effectiveness and safety of an automatic fault processing program; if new fault characteristics appear, the new fault characteristics are recorded in a fault library, and parameters and algorithms of the fault automatic processing program are timely adjusted.
Preferably: in the step S2, the specific way of establishing the mathematical model is as follows:
(1) predicting the running state of a future power system by analyzing and modeling historical data;
(2) through training and learning the data, automatically identifying fault characteristics in the power system;
(3) by modeling interactions between various components of the power system, the operating state and fault characteristics of the power system are predicted.
Preferably: in the step S3, the specific way of analyzing the fault characteristics is as follows:
(1) identifying abnormal data points through analysis and comparison of historical data, and taking the abnormal data points as fault characteristics;
(2) through training and learning of a large amount of data, fault characteristics in the power system are automatically identified;
(3) the automatic identification of fault characteristics is realized by integrating the knowledge of domain experts into a computer system.
Preferably: in the step S5, the specific manner of real-time monitoring and evaluation is as follows:
(1) through analysis and mining of real-time data, potential fault characteristics are found;
(2) the effectiveness and the safety of the fault automatic processing program are ensured through the real-time monitoring and control of the running state of the power system;
(3) by performing simulation on the power system, the effect and safety of the fault automatic processing program are evaluated.
Preferably: the rapid fault reaction processing method for the electric power system further comprises the following steps:
SA6: fault diagnosis and localization; in the automatic fault handling process, the faults need to be diagnosed and located so as to more accurately determine the characteristics and the positions of the faults;
SA7: a fault visual display;
SA8: a fault report is generated.
Preferably: in the step SA6, the specific modes of fault diagnosis and positioning are as follows:
(1) extracting fault characteristics by analyzing and processing signals in the power system;
(2) determining the position and the characteristics of the fault through pattern recognition of the operation data of the power system;
(3) by installing various intelligent sensors, the running state of the power system is monitored in real time, and faults are automatically found and positioned.
Preferably: in the step SA7 and the step SA8, the specific modes of fault visual display and fault report generation are as follows:
(1) based on the image display module, displaying the data information in an image mode;
(2) based on the report generation module, the data information is sorted and summarized, and a fault report is generated;
(3) based on the intelligent assistant module, reminding contents in the generated fault report in a voice broadcasting mode.
Preferably: in the rapid fault response processing method of the power system, a method based on a rule base is adopted for automatic fault processing, and the following formula is specifically adopted:
f(x)＝{0,x∈A1,x∈B
where x is the input variable and A and B are two rule sets, respectively.
Preferably: in the rapid fault response processing method of the power system, a fuzzy logic-based method is adopted for fault automatic processing, and the following formula is specifically adopted:
where x is the non-input variable and μ and λ are the weights and thresholds, respectively, of the fuzzy set.
Preferably: in the rapid fault response processing method of the power system, a method based on a genetic algorithm is adopted for automatic fault processing, and the following formula is specifically adopted:
wherein F is i (x) Is the function value of the ith generation of individuals,is the crossover probability b j (x) The variation probability, n is the population size.
The beneficial effects of the invention are as follows:
1. according to the rapid response processing method for the faults of the power system, which is provided by the invention, the real-time monitoring of all aspects of the power system can be realized by the real-time data acquisition function, and the fault condition can be found in time; for example, by installing various sensors and monitoring equipment, parameters such as current, voltage, temperature and the like of the power system can be monitored in real time, and monitoring results are transmitted to the fault automatic processing module for processing.
2. According to the rapid response processing method for the faults of the power system, the model building function can predict the running state of the power system through methods such as historical data analysis and machine learning, and the accuracy and efficiency of automatic fault processing are improved; for example, by analyzing and modeling the historical data, the load change trend and the fault probability of the power system can be predicted, so that measures are taken in advance to avoid accidents.
3. The rapid response processing method for the power system faults is characterized in that the analysis function can conduct multidimensional analysis and mining on data in the power system, and valuable information is extracted; for example, abnormal data points can be identified by analyzing data in different time periods in the power system, and classified and generalized to provide reference for subsequent automatic fault processing.
4. According to the rapid response processing method for the faults of the power system, which is provided by the invention, the fault automatic processing function can rapidly and accurately judge the fault type and position of the power system according to a preset rule base, fuzzy logic or genetic algorithm and other methods; for example, when a power system fails, the failure automatic processing module can judge according to a preset rule base or fuzzy logic, quickly determine the type and the position of the failure, and send an alarm prompt to an operator.
Drawings
Fig. 1 is a flowchart of a method for fast reacting to faults of an electric power system according to the present invention.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Example 1:
a rapid response processing method for power system faults comprises the following steps:
s1: acquiring real-time data of a power system; acquiring data of the power system in real time through a sensor and monitoring equipment which are arranged in the power system, wherein the data comprise voltage, current and frequency parameters;
s2: establishing a mathematical model; according to the acquired real-time data, a mathematical model is established for describing the running state and fault characteristics of the power system;
s3: analyzing fault characteristics; identifying fault features existing in the power system through analysis of the data model;
s4: starting a fault automatic processing program; matching in a fault library according to the identified fault characteristics, and starting a fault automatic processing program according to a matching result; the program automatically adjusts the running state of the power system according to the fault characteristics, such as adjusting the output voltage of a generator, adjusting the impedance of a power transmission line and the like, so as to restore the normal operation of the power system;
s5: monitoring and evaluating in real time; in the automatic fault processing process, the running state of the power system is monitored and evaluated in real time so as to ensure the effectiveness and safety of an automatic fault processing program; if new fault characteristics appear, the new fault characteristics are recorded in a fault library, and parameters and algorithms of the fault automatic processing program are timely adjusted.
In the step S2, a specific manner of establishing the mathematical model is as follows:
(1) predicting the running state of a future power system by analyzing and modeling historical data;
(2) through training and learning the data, automatically identifying fault characteristics in the power system;
(3) by modeling interactions between various components of the power system, the operating state and fault characteristics of the power system are predicted.
In the step S3, a specific manner of analyzing the fault feature is as follows:
(1) identifying abnormal data points through analysis and comparison of historical data, and taking the abnormal data points as fault characteristics;
(2) through training and learning of a large amount of data, fault characteristics in the power system are automatically identified;
(3) the automatic identification of fault characteristics is realized by integrating the knowledge of domain experts into a computer system.
In the step S5, the specific manner of real-time monitoring and evaluation is as follows:
(1) through analysis and mining of real-time data, potential fault characteristics are found;
(2) the effectiveness and the safety of the fault automatic processing program are ensured through the real-time monitoring and control of the running state of the power system;
(3) by performing simulation on the power system, the effect and safety of the fault automatic processing program are evaluated.
In the rapid fault response processing method of the power system, a method based on a rule base is adopted for automatic fault processing, and the following formula is specifically adopted:
f(x)＝{0,x∈A1,x∈B
where x is the input variable and A and B are two rule sets, respectively.
Example 2:
a rapid response processing method for power system faults comprises the following steps:
s1: acquiring real-time data of a power system; acquiring data of the power system in real time through a sensor and monitoring equipment which are arranged in the power system, wherein the data comprise voltage, current and frequency parameters;
s2: establishing a mathematical model; according to the acquired real-time data, a mathematical model is established for describing the running state and fault characteristics of the power system;
s3: analyzing fault characteristics; identifying fault features existing in the power system through analysis of the data model;
s4: starting a fault automatic processing program; matching in a fault library according to the identified fault characteristics, and starting a fault automatic processing program according to a matching result; the program automatically adjusts the running state of the power system according to the fault characteristics, such as adjusting the output voltage of a generator, adjusting the impedance of a power transmission line and the like, so as to restore the normal operation of the power system;
s5: monitoring and evaluating in real time; in the automatic fault processing process, the running state of the power system is monitored and evaluated in real time so as to ensure the effectiveness and safety of an automatic fault processing program; if new fault characteristics appear, the new fault characteristics are recorded in a fault library, and parameters and algorithms of the fault automatic processing program are timely adjusted.
In the step S2, a specific manner of establishing the mathematical model is as follows:
(1) predicting the running state of a future power system by analyzing and modeling historical data;
(2) through training and learning the data, automatically identifying fault characteristics in the power system;
(3) by modeling interactions between various components of the power system, the operating state and fault characteristics of the power system are predicted.
In the step S3, a specific manner of analyzing the fault feature is as follows:
(1) identifying abnormal data points through analysis and comparison of historical data, and taking the abnormal data points as fault characteristics;
(2) through training and learning of a large amount of data, fault characteristics in the power system are automatically identified;
(3) the automatic identification of fault characteristics is realized by integrating the knowledge of domain experts into a computer system.
In the step S5, the specific manner of real-time monitoring and evaluation is as follows:
(1) through analysis and mining of real-time data, potential fault characteristics are found;
(2) the effectiveness and the safety of the fault automatic processing program are ensured through the real-time monitoring and control of the running state of the power system;
(3) by performing simulation on the power system, the effect and safety of the fault automatic processing program are evaluated.
The rapid fault reaction processing method for the electric power system further comprises the following steps:
SA6: fault diagnosis and localization; in the automatic fault handling process, the faults need to be diagnosed and located so as to more accurately determine the characteristics and the positions of the faults;
SA7: a fault visual display;
SA8: a fault report is generated.
In the step SA6, the specific manners of fault diagnosis and positioning are as follows:
(1) extracting fault characteristics by analyzing and processing signals in the power system;
(2) determining the position and the characteristics of the fault through pattern recognition of the operation data of the power system;
(3) by installing various intelligent sensors, the running state of the power system is monitored in real time, and faults are automatically found and positioned.
In the step SA7 and the step SA8, the specific modes of fault visualization display and fault report generation are as follows:
(1) based on the image display module, displaying the data information in an image mode;
(2) based on the report generation module, the data information is sorted and summarized, and a fault report is generated;
(3) based on the intelligent assistant module, reminding contents in the generated fault report in a voice broadcasting mode.
In the rapid fault response processing method of the power system, a fuzzy logic-based method is adopted for fault automatic processing, and the following formula is specifically adopted:
where x is the non-input variable and μ and λ are the weights and thresholds, respectively, of the fuzzy set.
Example 3:
a rapid response processing method for power system faults comprises the following steps:
s1: acquiring real-time data of a power system; acquiring data of the power system in real time through a sensor and monitoring equipment which are arranged in the power system, wherein the data comprise voltage, current and frequency parameters;
s2: establishing a mathematical model; according to the acquired real-time data, a mathematical model is established for describing the running state and fault characteristics of the power system;
s3: analyzing fault characteristics; identifying fault features existing in the power system through analysis of the data model;
s4: starting a fault automatic processing program; matching in a fault library according to the identified fault characteristics, and starting a fault automatic processing program according to a matching result; the program automatically adjusts the running state of the power system according to the fault characteristics, such as adjusting the output voltage of a generator, adjusting the impedance of a power transmission line and the like, so as to restore the normal operation of the power system;
s5: monitoring and evaluating in real time; in the automatic fault processing process, the running state of the power system is monitored and evaluated in real time so as to ensure the effectiveness and safety of an automatic fault processing program; if new fault characteristics appear, the new fault characteristics are recorded in a fault library, and parameters and algorithms of the fault automatic processing program are timely adjusted.
In the step S2, a specific manner of establishing the mathematical model is as follows:
(1) predicting the running state of a future power system by analyzing and modeling historical data;
(2) through training and learning the data, automatically identifying fault characteristics in the power system;
(3) by modeling interactions between various components of the power system, the operating state and fault characteristics of the power system are predicted.
In the step S3, a specific manner of analyzing the fault feature is as follows:
(1) identifying abnormal data points through analysis and comparison of historical data, and taking the abnormal data points as fault characteristics;
(2) through training and learning of a large amount of data, fault characteristics in the power system are automatically identified;
(3) the automatic identification of fault characteristics is realized by integrating the knowledge of domain experts into a computer system.
In the step S5, the specific manner of real-time monitoring and evaluation is as follows:
(1) through analysis and mining of real-time data, potential fault characteristics are found;
(2) the effectiveness and the safety of the fault automatic processing program are ensured through the real-time monitoring and control of the running state of the power system;
(3) by performing simulation on the power system, the effect and safety of the fault automatic processing program are evaluated.
The rapid fault reaction processing method for the electric power system further comprises the following steps:
SA6: fault diagnosis and localization; in the automatic fault handling process, the faults need to be diagnosed and located so as to more accurately determine the characteristics and the positions of the faults;
SA7: a fault visual display;
SA8: a fault report is generated.
In the step SA6, the specific manners of fault diagnosis and positioning are as follows:
(1) extracting fault characteristics by analyzing and processing signals in the power system;
(2) determining the position and the characteristics of the fault through pattern recognition of the operation data of the power system;
(3) by installing various intelligent sensors, the running state of the power system is monitored in real time, and faults are automatically found and positioned.
In the step SA7 and the step SA8, the specific modes of fault visualization display and fault report generation are as follows:
(1) based on the image display module, displaying the data information in an image mode;
(2) based on the report generation module, the data information is sorted and summarized, and a fault report is generated;
(3) based on the intelligent assistant module, reminding contents in the generated fault report in a voice broadcasting mode.
In the rapid fault response processing method of the power system, a method based on a genetic algorithm is adopted for automatic fault processing, and the following formula is specifically adopted:
wherein F is i (x) Is the function value of the ith generation of individuals,is the crossover probability b j (x) The variation probability, n is the population size.
The rapid fault reaction processing method for the electric power system improves the reliability and safety of the electric power system; by comprehensively utilizing a plurality of functional modules such as real-time data acquisition, model establishment, feature analysis, fault automatic processing and the like, comprehensive monitoring and management of the power system are realized, and reliability, safety and management efficiency of the power system are improved.
According to the rapid response processing method for the faults of the power system, the real-time monitoring of all aspects of the power system can be realized by the real-time data acquisition function, and the fault condition can be found in time.
According to the rapid response processing method for the faults of the power system, the model building function can predict the running state of the power system through methods such as historical data analysis and machine learning, and the accuracy and efficiency of automatic fault processing are improved.
The rapid response processing method for the power system faults is characterized in that the analysis function can conduct multidimensional analysis and mining on data in the power system, and valuable information is extracted.
According to the rapid response processing method for the faults of the power system, the fault automatic processing function can rapidly and accurately judge the fault type and the fault position of the power system according to the preset rule base, fuzzy logic or genetic algorithm and other methods.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The rapid response processing method for the power system faults is characterized by comprising the following steps of:
s1: acquiring real-time data of a power system; acquiring data of the power system in real time through a sensor and monitoring equipment which are arranged in the power system, wherein the data comprise voltage, current and frequency parameters;
s2: establishing a mathematical model; according to the acquired real-time data, a mathematical model is established for describing the running state and fault characteristics of the power system;
s3: analyzing fault characteristics; identifying fault features existing in the power system through analysis of the data model;
s4: starting a fault automatic processing program; matching in a fault library according to the identified fault characteristics, and starting a fault automatic processing program according to a matching result; the program automatically adjusts the running state of the power system according to the fault characteristics;
s5: monitoring and evaluating in real time; in the automatic fault processing process, the running state of the power system is monitored and evaluated in real time so as to ensure the effectiveness and safety of an automatic fault processing program; if new fault characteristics appear, the new fault characteristics are recorded in a fault library, and parameters and algorithms of the fault automatic processing program are timely adjusted.
2. The rapid response processing method for power system faults according to claim 1, wherein in the step S2, a specific way of establishing a mathematical model is as follows:
(1) predicting the running state of a future power system by analyzing and modeling historical data;
(2) through training and learning the data, automatically identifying fault characteristics in the power system;
(3) by modeling interactions between various components of the power system, the operating state and fault characteristics of the power system are predicted.
3. The rapid response processing method for power system faults according to claim 1, wherein in the step S3, a specific manner of analyzing fault characteristics is as follows:
(1) identifying abnormal data points through analysis and comparison of historical data, and taking the abnormal data points as fault characteristics;
(2) through training and learning of a large amount of data, fault characteristics in the power system are automatically identified;
(3) the automatic identification of fault characteristics is realized by integrating the knowledge of domain experts into a computer system.
4. The rapid response processing method for power system faults according to claim 1, wherein in the step S5, the specific manner of real-time monitoring and evaluation is as follows:
(1) through analysis and mining of real-time data, potential fault characteristics are found;
(2) the effectiveness and the safety of the fault automatic processing program are ensured through the real-time monitoring and control of the running state of the power system;
(3) by performing simulation on the power system, the effect and safety of the fault automatic processing program are evaluated.
5. The power system fault quick response processing method according to claim 1, characterized in that the power system fault quick response processing method further comprises:
SA6: fault diagnosis and localization; in the automatic fault handling process, the faults need to be diagnosed and located so as to more accurately determine the characteristics and the positions of the faults;
SA7: a fault visual display;
SA8: a fault report is generated.
6. The rapid response processing method for power system faults as claimed in claim 5, wherein in the step of SA6, the specific means of fault diagnosis and location are as follows:
(1) extracting fault characteristics by analyzing and processing signals in the power system;
(2) determining the position and the characteristics of the fault through pattern recognition of the operation data of the power system;
(3) by installing various intelligent sensors, the running state of the power system is monitored in real time, and faults are automatically found and positioned.
7. The rapid response processing method for power system faults according to claim 5, wherein in the step of SA7 and the step of SA8, the specific modes of fault visualization display and fault report generation are as follows:
(1) based on the image display module, displaying the data information in an image mode;
(2) based on the report generation module, the data information is sorted and summarized, and a fault report is generated;
(3) based on the intelligent assistant module, reminding contents in the generated fault report in a voice broadcasting mode.
8. The rapid response processing method for power system faults according to claim 1, wherein in the rapid response processing method for power system faults, a method based on a rule base is adopted for automatic fault processing, and specifically the following formula is adopted:
f(x)＝{0,x∈A1,x∈B
where x is the input variable and A and B are two rule sets, respectively.
9. The rapid response processing method for power system faults according to claim 1, wherein in the rapid response processing method for power system faults, a fuzzy logic-based method is adopted for fault automatic processing, and specifically the following formula is adopted:
where x is the non-input variable and μ and λ are the weights and thresholds, respectively, of the fuzzy set.
10. The rapid response processing method for power system faults according to claim 1, wherein in the rapid response processing method for power system faults, a method based on a genetic algorithm is adopted for automatic fault processing, and specifically the following formula is adopted:
wherein F is i (x) Is the function value of the ith generation of individuals,is the crossover probability b j (x) The variation probability, n is the population size.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117289085A (en) * | 2023-11-22 | 2023-12-26 | 武汉宏联电线电缆有限公司 | Multi-line fault analysis and diagnosis method and system |
| CN117911011A (en) * | 2024-03-19 | 2024-04-19 | 天津大学 | AC/DC series-parallel power line fault maintenance early warning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117289085A (en) * | 2023-11-22 | 2023-12-26 | 武汉宏联电线电缆有限公司 | Multi-line fault analysis and diagnosis method and system |
| CN117911011A (en) * | 2024-03-19 | 2024-04-19 | 天津大学 | AC/DC series-parallel power line fault maintenance early warning method |
| CN117911011B (en) * | 2024-03-19 | 2024-05-28 | 天津大学 | AC/DC series-parallel power line fault maintenance early warning method |
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