Intelligent digital automatic distribution network system

Abstract

The invention discloses an intelligent digital automatic distribution network system, which comprises a distribution network intelligent module, and is characterized in that the distribution network intelligent module optimizes a data end interface and an intelligent operation environment of the automatic distribution network system, so that automatic input and output of an incremental model and a full model are realized by graph and electric power parameters of the intelligent system; the accuracy of input data of the distribution network system is ensured, and the repeated workload of graphic data maintenance is reduced; the digital terminal is used for judging whether the switch needs to trip according to the logic whether fault current exists or not so as to accurately position a fault area at one time and cut off a fault point; the distribution network intelligent module has the beneficial effects that by optimizing a data end interface and an intelligent operation environment of an automatic distribution network system, the distribution network intelligent module can realize automatic input and output of an incremental model and a full model of graph and electric power parameters of the intelligent system, so that the accuracy of input data of the distribution network system can be ensured; and the repeated workload of graphic data maintenance is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power automation, and in particular relates to an intelligent digital automatic distribution network system. Background Art

[0002] With the continuous development of intelligent systems, the degree of automation in power production, operation and management of power systems has been continuously improved. In particular, the promotion of intelligent mode technology has enabled the distribution network of the power system to fully realize intelligent system control. The new intelligent technology has greatly promoted the intelligentization of distribution network construction and management systems, and promoted the leapfrog development of the power system.

[0003] The efficient and stable operation of the power distribution network is the basic prerequisite for power supply reliability and safety, thereby shortening the power outage time of the power grid system as much as possible, and maximizing the economic benefits of the power system. This puts forward new requirements for the power system, especially the construction of the distribution network system. It should not only consider the stability and safety of the power grid system, but also take into account green environmental protection and flexibility of operation mode, so as to provide a basic guarantee for the development and research of intelligent distribution network technology; based on the standpoint of the interests of electricity users, the research on distribution network intelligent mode technology is the dominant trend of social progress and market competition, and it is also the best way for the power system to maximize economic benefits and achieve rapid development.

[0004] Most existing automated distribution network systems use the elimination principle, which leads to multiple reclosing during fault handling. This not only affects the power supply reliability, but also increases the risk of tripping and reclosing of switches in non-fault sections. Summary of the invention

[0005] The object of the present invention is to provide an intelligent digital automatic distribution network system, improve the accuracy of input data of the distribution network system, reduce multiple overlaps in the process of fault handling, and improve power supply reliability.

[0006] To achieve the above object, the present invention provides the following technical solution: an intelligent digital automatic distribution network system, comprising

[0007] A distribution network intelligent module, which optimizes the data terminal interface and intelligent operation environment of the automated distribution network system, so that the graphics and power parameters of the intelligent system can be automatically input and output in incremental models and full models, ensuring the accuracy of input data of the distribution network system and reducing the repetitive workload of graphics data maintenance;

[0008] A digital terminal, which determines whether the switch needs to trip based on the presence or absence of fault current logic, so as to accurately locate the fault area and remove the fault point at one time;

[0009] A digital transformer-variable integrated system is provided, wherein the digital transformer-variable integrated system can realize rapid fault location and rapid fault elimination.

[0010] As a preferred technical solution of the present invention, the data terminal interface and intelligent operation environment of the automatic distribution network system are optimized, and the specific method is as follows:

[0011] Data terminal interface optimization: improve the efficiency and accuracy of data transmission by studying and improving the technical parameters of the data terminal interface;

[0012] Intelligent operating environment optimization: Create and optimize an environment that can automatically identify, analyze and respond to the operating status of the distribution network system, including the use of sensors, monitoring equipment and data analysis algorithms to achieve real-time monitoring, predictive maintenance and automated control.

[0013] As a preferred technical solution of the present invention, the efficiency and accuracy of data transmission are improved by studying and improving the technical parameters of the data end interface, including optimizing the format, size and transmission protocol of the data packet.

[0014] As a preferred technical solution of the present invention, the data analysis algorithm includes the following types: descriptive statistical analysis algorithm; predictive analysis algorithm; classification algorithm; clustering algorithm; association rule algorithm.

[0015] As a preferred technical solution of the present invention, automatic input and output of incremental models and full models of graphics and power parameters: through the automation system, real-time reception and transmission of graphics and power parameters of the power system, including the status, electricity and power of the equipment.

[0016] As a preferred technical solution of the present invention, the digital terminal determines whether the switch needs to trip according to the fault current logic, so as to accurately locate the fault area and remove the fault point at one time. The specific method is as follows:

[0017] Fault current detection: The digital terminal monitors the current of the distribution network line in real time. When an abnormal fault current is detected, the fault handling mechanism is triggered;

[0018] Fault logic judgment: The digital terminal judges whether a fault current exists according to preset logic rules; if a fault current exists, it is judged that a fault has occurred;

[0019] Switch state control: The digital terminal controls the closing or opening state of the switch according to the result of fault logic judgment to accurately locate the fault area and remove the fault point;

[0020] Fault location and isolation: The digital terminal detects the scope and size of the fault current, combines the topology of the distribution network line and the switch status, accurately locates the fault area and determines the switch to isolate the fault point; the digital terminal sends control instructions to the corresponding switch to trip or close it, thereby isolating the fault area;

[0021] Power supply restoration: After the fault is isolated, the digital terminal formulates a plan to restore power supply based on the topology and load conditions of the distribution network lines.

[0022] As a preferred technical solution of the present invention, the digital terminal realizes accurate positioning of the fault area and removal of the fault point by controlling the closing or opening state of the switch according to the result of the fault logic judgment; there are two specific operation modes: one is that the digital terminal actively sends control instructions to directly operate the switch to trip; the other is to upload the fault information and operation instructions to the superior control system through communication with the superior control system, and the superior control system performs the operations of fault isolation and power restoration.

[0023] As a preferred technical solution of the present invention, the digital transformer-distributor integrated system realizes rapid fault location and rapid fault removal, and the specific method is as follows:

[0024] Real-time monitoring: The digital transformer-distribution integrated system monitors the operating status of the distribution network in real time;

[0025] Fault detection: By monitoring data in real time, the system automatically detects whether there is a fault;

[0026] Fault location: Once a fault is detected, the system automatically locates the fault location;

[0027] Rapid fault removal: After locating the fault, the system automatically or semi-automatically controls the switch device to isolate the fault. The control command is sent to the corresponding switch device through the digital terminal to achieve rapid fault removal.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] By optimizing the data interface and intelligent operation environment of the automated distribution network system, the distribution network intelligent module can realize the automatic input and output of the incremental model and the full model of the graphics and power parameters of the intelligent system, which can ensure the accuracy of the input data of the distribution network system and reduce the repetitive workload of graphics data maintenance;

[0030] The digital terminal can determine whether the switch needs to trip, accurately locate the fault area and remove the fault point at one time, overcoming the problem of multiple reclosing caused by the elimination principle of the existing distribution network automation system, avoiding the tripping and reclosing of the switch in the non-fault section, and improving the power supply reliability of the non-fault section;

[0031] Through the control of the digital integrated transformer and distribution system, everything from the occurrence of faults, fault handling, and whether there is overload when the fault is restored are under the control of the system. Through this control method, the fault can be quickly located and eliminated, thereby improving power supply reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a system principle diagram of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1 , which is the first embodiment of the present invention, and provides an intelligent digital automatic distribution network system, comprising

[0036] The distribution network intelligent module optimizes the data terminal interface and intelligent operation environment of the automated distribution network system, so that the graphics and power parameters of the intelligent system can be automatically input and output in incremental models and full models, ensuring the accuracy of input data of the distribution network system and reducing the repetitive workload of graphics data maintenance;

[0037] Digital terminal: The digital terminal determines whether the switch needs to trip based on the fault current logic, accurately locates the fault area and removes the fault point at one time; it overcomes the problem of multiple reclosing caused by the elimination principle of the existing distribution network automation system, avoids the tripping and reclosing of the non-fault section switch, and improves the power supply reliability of the non-fault section;

[0038] The digital transformer and distribution system controls everything from the occurrence of faults, fault handling, and whether there is overload when the fault is restored. Through this control method, the fault can be quickly located and eliminated, thereby improving power supply reliability.

[0039] In this embodiment, preferably, the data terminal interface and intelligent operation environment of the automated distribution network system are optimized, and the specific method is as follows:

[0040] Data terminal interface optimization: improve the efficiency and accuracy of data transmission by studying and improving the technical parameters of the data terminal interface;

[0041] Intelligent operating environment optimization: Create and optimize an environment that can automatically identify, analyze and respond to the operating status of the distribution network system, including the use of sensors, monitoring equipment and data analysis algorithms to achieve real-time monitoring, predictive maintenance and automated control.

[0042] In this embodiment, preferably, the efficiency and accuracy of data transmission are improved by studying and improving the technical parameters of the data end interface, including optimizing the format, size and transmission protocol of the data packet.

[0043] In this embodiment, preferably, the data analysis algorithm includes the following types: descriptive statistical analysis algorithm; predictive analysis algorithm; classification algorithm; clustering algorithm; association rule algorithm.

[0044] In this embodiment, preferably, the incremental model and the full model of graphics and power parameters are automatically input and output: through the automation system, the graphics and power parameters of the power system are received and sent in real time, including the status, electricity and power of the equipment.

[0045] In this embodiment, preferably, the digital terminal determines whether the switch needs to trip according to the fault current logic, so as to accurately locate the fault area and remove the fault point at one time. The specific method is as follows:

[0046] Fault current detection: The digital terminal monitors the current of the distribution network line in real time. When an abnormal fault current is detected, the fault handling mechanism is triggered;

[0047] Fault logic judgment: The digital terminal judges whether a fault current exists according to preset logic rules; if a fault current exists, it is judged that a fault has occurred;

[0048] Switch state control: The digital terminal controls the closing or opening state of the switch according to the result of fault logic judgment to accurately locate the fault area and remove the fault point;

[0049] Fault location and isolation: The digital terminal detects the scope and size of the fault current, combines the topology of the distribution network line and the switch status, accurately locates the fault area and determines the switch to isolate the fault point; the digital terminal sends control instructions to the corresponding switch to trip or close it, thereby isolating the fault area;

[0050] Power supply restoration: After the fault is isolated, the digital terminal formulates a plan to restore power supply based on the topology and load conditions of the distribution network lines.

[0051] In this embodiment, preferably, the digital terminal realizes accurate positioning of the fault area and removal of the fault point by controlling the closing or opening state of the switch according to the result of the fault logic judgment; there are two specific operation modes: one is that the digital terminal actively sends control instructions to directly operate the switch to trip; the other is to upload the fault information and operation instructions to the superior control system through communication with the superior control system, and the superior control system performs the operations of fault isolation and power restoration.

[0052] In this embodiment, preferably, the digital transformer-distributor integrated system realizes rapid fault location and rapid fault removal, and the specific method is as follows:

[0053] Real-time monitoring: The digital transformer-distribution integrated system monitors the operating status of the distribution network in real time;

[0054] Fault detection: By monitoring data in real time, the system automatically detects whether there is a fault;

[0055] Fault location: Once a fault is detected, the system automatically locates the fault location;

[0056] Rapid fault removal: After locating the fault, the system automatically or semi-automatically controls the switch device to isolate the fault. The control command is sent to the corresponding switch device through the digital terminal to achieve rapid fault removal.

[0057] Example 2

[0058] See also Figure 1 , which is a second embodiment of the present invention, and provides an intelligent digital automatic distribution network system, comprising

[0059] The distribution network intelligent module optimizes the data terminal interface and intelligent operation environment of the automated distribution network system, so that the graphics and power parameters of the intelligent system can be automatically input and output in incremental models and full models, ensuring the accuracy of input data of the distribution network system and reducing the repetitive workload of graphics data maintenance;

[0060] Digital terminal: The digital terminal determines whether the switch needs to trip based on the fault current logic, accurately locates the fault area and removes the fault point at one time; it overcomes the problem of multiple reclosing caused by the elimination principle of the existing distribution network automation system, avoids the tripping and reclosing of the non-fault section switch, and improves the power supply reliability of the non-fault section;

[0061] The digital transformer and distribution system controls everything from the occurrence of faults, fault handling, and whether there is overload when the fault is restored. Through this control method, the fault can be quickly located and eliminated, thereby improving power supply reliability.

[0062] In this embodiment, preferably, the data terminal interface and intelligent operation environment of the automated distribution network system are optimized, and the specific method is as follows:

[0063] Data end interface optimization: Improve the efficiency and accuracy of data transmission by studying and improving the technical parameters of the data end interface, including optimizing the format, size and transmission protocol of data packets to reduce the delay and error rate of data transmission;

[0064] Intelligent operating environment: involves creating and optimizing an environment that can automatically identify, analyze and respond to the operating status of the distribution network system, including the use of advanced sensors, monitoring equipment and data analysis algorithms to achieve real-time monitoring, predictive maintenance and automated control functions; data analysis algorithms include the following types: descriptive statistical analysis algorithm; predictive analysis algorithm; classification algorithm; clustering algorithm; association rule algorithm; descriptive statistical analysis algorithm: descriptive statistical analysis algorithm is the basis of data analysis, used to describe the basic characteristics of data, such as mean, median, standard deviation, these statistics help to understand the distribution of data, so as to better understand the data; predictive analysis algorithm: predictive analysis algorithm is an algorithm used to predict future events, which can predict future trends and events based on historical data and trends; predictive analysis algorithms include regression analysis and time series analysis; classification algorithm: classification algorithm is to divide data into different categories, classification algorithms include decision tree, naive Bayes, support vector machine; clustering algorithm: clustering algorithm is to divide data into different groups, clustering algorithms include K-means, hierarchical clustering; association rule algorithm: association rule algorithm is used to discover the association relationship between data, association rule algorithm includes Apriori algorithm.

[0065] In this embodiment, preferably, the automatic input and output of the incremental model and the full model of graphics and power parameters: through the automation system, the graphics and power parameters of the power system are received and sent in real time, including the status, electricity, and power of the equipment. The automatic input and output of the incremental model and the full model can ensure the integrity and accuracy of the data and reduce the need for manual intervention.

[0066] In this embodiment, preferably, the digital terminal determines whether the switch needs to trip according to the fault current logic, so as to accurately locate the fault area and remove the fault point at one time. The specific method is as follows:

[0067] Fault current detection: The digital terminal monitors the current of the distribution network line in real time. When an abnormal fault current is detected, the fault handling mechanism is triggered;

[0068] Fault logic judgment: The digital terminal judges whether a fault current exists according to preset logic rules; if a fault current exists, it is judged that a fault has occurred;

[0069] Switch state control: The digital terminal controls the closing or opening state of the switch according to the result of the fault logic judgment to accurately locate the fault area and remove the fault point. There are two specific operation modes: one is that the digital terminal actively sends control instructions to directly operate the switch to trip; the other is to communicate with the superior control system to upload the fault information and operation instructions to the superior control system, and the superior control system will perform fault isolation and power supply restoration operations;

[0070] Fault location and isolation: The digital terminal detects the scope and size of the fault current, combines the topology of the distribution network line and the switch status, accurately locates the fault area and determines the switch to isolate the fault point; the digital terminal sends control instructions to the corresponding switch to trip or close it, thereby isolating the fault area;

[0071] Power supply restoration: After the fault is isolated, the digital terminal formulates a plan to restore power supply based on the topology and load conditions of the distribution network line; the digital terminal sends control instructions to the corresponding switches to close or open them to restore normal power supply to non-fault areas.

[0072] In this embodiment, preferably, the digital transformer-distributor integrated system realizes rapid fault location and rapid fault removal, and the specific method is as follows:

[0073] Real-time monitoring: The digital transformer-distributor integrated system monitors the operating status of the distribution network in real time, including voltage, current, power parameters, switch status, and protection action events;

[0074] Fault detection: By monitoring data in real time, the system automatically detects whether a fault exists; fault detection can use rule-based algorithms, such as current overload and voltage sag, or more complex algorithms, such as transient overvoltage and harmonic distortion;

[0075] Fault location: Once a fault is detected, the system automatically locates the fault location. The location method can be a model-based method, such as a topology-based fault location algorithm, or a data-based method, such as a machine learning-based fault location algorithm.

[0076] Rapid fault removal: After locating the fault, the system automatically or semi-automatically controls the switch device to isolate the fault; the control command can be sent to the corresponding switch device through the digital terminal to achieve rapid fault removal.

[0077] It should be noted that the connection between the distribution network intelligent module and the digital terminal is mainly reflected in the following aspects:

[0078] Data interaction: The distribution network intelligent module interacts with the digital terminal through the data interface. The digital terminal collects the operation data and power parameters of the distribution network system and transmits them to the distribution network intelligent module through the data interface for analysis and processing. At the same time, the distribution network intelligent module can also send instructions to the digital terminal to control and adjust the digital terminal.

[0079] Intelligent management: The distribution network intelligent module can perform intelligent management on the digital terminal, such as remote monitoring, fault diagnosis, and automatic control; the digital terminal can monitor the operating status and fault conditions of the distribution network system in real time, and transmit the data to the distribution network intelligent module for analysis and processing, helping the distribution network intelligent module to achieve intelligent management;

[0080] Integrated application: The distribution network intelligent module and the digital terminal can be integrated to form a complete distribution network automation system; the digital terminal can be used as a remote terminal of the distribution network intelligent module to realize remote monitoring, data collection, and control execution functions. At the same time, it can also use the intelligent algorithms and decision support provided by the distribution network intelligent module to realize more advanced intelligent functions.

[0081] Although the embodiments of the present invention have been shown and described, as detailed above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent digital automatic distribution network system, characterized by: include A distribution network intelligent module, which optimizes the data terminal interface and intelligent operation environment of the automated distribution network system, so that the graphics and power parameters of the intelligent system can be automatically input and output in incremental models and full models, ensuring the accuracy of input data of the distribution network system and reducing the repetitive workload of graphics data maintenance; A digital terminal, which determines whether the switch needs to trip based on the presence or absence of fault current logic, so as to accurately locate the fault area and remove the fault point at one time; A digital transformer-variable integrated system is provided, wherein the digital transformer-variable integrated system can realize rapid fault location and rapid fault elimination.

2. The intelligent digital automatic distribution network system according to claim 1, characterized in that: Optimize the data interface and intelligent operation environment of the automated distribution network system. The specific methods are as follows: Data terminal interface optimization: Improve the efficiency and accuracy of data transmission by studying and improving the technical parameters of the data terminal interface; Intelligent operating environment optimization: Create and optimize an environment that can automatically identify, analyze and respond to the operating status of the distribution network system, including the use of sensors, monitoring equipment and data analysis algorithms to achieve real-time monitoring, predictive maintenance and automated control.

3. The intelligent digital automatic distribution network system according to claim 2, characterized in that: Improve the efficiency and accuracy of data transmission by studying and improving the technical parameters of the data terminal interface; This includes optimizing the format, size, and transmission protocol of data packets.

4. The intelligent digital automatic distribution network system according to claim 2, characterized in that: The data analysis algorithms include the following types: descriptive statistical analysis algorithms; predictive analysis algorithms; Classification algorithms; Clustering algorithm; Association rule algorithm.

5. The intelligent digital automatic distribution network system according to claim 1, characterized in that: Automatic input and output of incremental and full models of graphics and power parameters: Through the automation system, graphics and power parameters of the power system are received and sent in real time, including the status, power and power of the equipment.

6. The intelligent digital automatic distribution network system according to claim 1, characterized in that: The digital terminal determines whether the switch needs to trip according to the fault current logic, and accurately locates the fault area and removes the fault point at one time. The specific method is as follows: Fault current detection: The digital terminal monitors the current of the distribution network line in real time. When an abnormal fault current is detected, the fault handling mechanism is triggered; Fault logic judgment: The digital terminal judges whether the fault current exists according to the preset logic rules; If there is a fault current, it is judged that a fault has occurred; Switch state control: The digital terminal controls the closing or opening state of the switch according to the result of fault logic judgment to accurately locate the fault area and remove the fault point; Fault location and isolation: The digital terminal detects the scope and size of the fault current, combines the topology of the distribution network line and the switch status, accurately locates the fault area and determines the switch to isolate the fault point; The digital terminal sends control instructions to the corresponding switch to make it trip or close, thus isolating the fault area; Power supply restoration: After the fault is isolated, the digital terminal formulates a plan to restore power supply based on the topology and load conditions of the distribution network lines.

7. The intelligent digital automatic distribution network system according to claim 6, characterized in that: The digital terminal accurately locates the fault area and removes the fault point by controlling the closing or opening state of the switch according to the result of the fault logic judgment; there are two specific operation modes: one is that the digital terminal actively sends control instructions to directly operate the switch to trip; the other is to upload the fault information and operation instructions to the superior control system through communication with the superior control system, and the superior control system performs fault isolation and power supply restoration operations.

8. The intelligent digital automatic distribution network system according to claim 1, characterized in that: The digital transformer-distributor integrated system can quickly locate and eliminate faults. The specific methods are as follows: Real-time monitoring: The digital transformer-distribution integrated system monitors the operating status of the distribution network in real time; Fault detection: By monitoring data in real time, the system automatically detects whether there is a fault; Fault location: Once a fault is detected, the system automatically locates the fault location; Rapid fault removal: After locating the fault, the system automatically or semi-automatically controls the switch device to isolate the fault. The control command is sent to the corresponding switch device through the digital terminal to achieve rapid fault removal.

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