CN115632473A - Power distribution system based on big data and thing networked control - Google Patents

Power distribution system based on big data and thing networked control Download PDF

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CN115632473A
CN115632473A CN202211183372.3A CN202211183372A CN115632473A CN 115632473 A CN115632473 A CN 115632473A CN 202211183372 A CN202211183372 A CN 202211183372A CN 115632473 A CN115632473 A CN 115632473A
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data
unit
information
module
power distribution
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韩小强
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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]
    • 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
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00026—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • 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

Abstract

The invention relates to the technical field of internet power distribution monitoring, and discloses a power distribution system based on big data and internet of things control, which comprises a data acquisition module, a data preprocessing module, a data modeling module, a big data management center, an operation management module, a data monitoring module and a statistical analysis module, wherein the data acquisition module comprises a sensing layer unit and a network layer unit, the big data management center comprises a data receiving and transmitting unit, a data processing unit and a data storage unit, the operation management module comprises a geographical position unit and a working state unit, and the data monitoring module comprises a real-time information unit, a historical information unit and a station room information unit; the method has the advantages of finding defects as soon as possible, quickly repairing faults and improving service quality, benefits from mature 4G wireless networks and optical fiber networks, continuously improves data transmission speed, continuously reduces network transmission cost, solves the problems of large number of self equipment and large model difference, and realizes timely treatment.

Description

Power distribution system based on big data and thing networked control
Technical Field
The invention relates to the technical field of internet power distribution monitoring, in particular to a power distribution system based on big data and internet of things control.
Background
The rapid development of the economic construction of China and the continuous improvement of the living standard of people lead the demand of China on electric power to increase day by day, and along with the continuous improvement of the requirement on the operation reliability of a power grid, a power distribution network is used as a terminal network directly connected with user equipment and gradually enters the life of people.
The existing power distribution system benefits from mature 4G wireless network and optical fiber network, the data transmission speed is continuously improved, the network transmission cost is continuously reduced, but due to the large-scale application of the Internet of things technology, the problems of large quantity of equipment and large model difference of the distribution network are difficult to solve, and the benefits in the aspects of defect discovery, fault repair and service quality are low, and the response speed is low.
Therefore, a complete power distribution system based on big data and internet of things control needs to be established.
Disclosure of Invention
Solves the technical problem
In order to overcome the defects in the prior art, the invention provides a power distribution system based on big data and internet of things control, and solves the problems that the existing power distribution system needs to be solved urgently, the problems that the number of devices of a distribution network is large and the model difference is large are difficult to solve due to the large-scale application of the internet of things technology, and the response speed is low in benefit in the aspects of defect discovery, fault repair and service quality.
Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a distribution system based on big data and thing networked control, includes data acquisition module, data preprocessing module, data modeling module, big data management center, operation management module, data monitoring module and statistical analysis module, data acquisition module includes perception layer unit and network layer unit, big data management center includes data transceiver unit, data processing unit and data storage unit, operation management module includes geographical position unit and operating condition unit, data monitoring module includes real-time information unit, historical information unit and station room information unit.
Preferably, the sensing layer unit comprises an implementation monitoring sensor which is provided with a control ground wire, a process wire, an insulator, a telegraph pole and an equipment tower, the wireless communication interface and the convergence control equipment are used for real-time data intercommunication, the intelligent sensor part is used for realizing self-monitoring and information acquisition by using consistent information, real-time data is transmitted to the convergence controller, and the GPRS/GSM/CDMA information processing system is used for transmitting the real-time data to the power network system.
Preferably, the network layer unit is a third layer in the OSI reference model, which is between the transport layer and the data link layer, and further manages data communication in the network in terms of a data frame transmission function between two adjacent endpoints provided by the data link layer, and manages data to be transmitted from a source end to a destination end through a plurality of intermediate nodes, so as to provide the most basic end-to-end data transmission service to the transport layer, and mainly includes virtual circuit packet switching and datagram packet switching, a routing algorithm, a congestion control method, an x.25 protocol, an integrated services data network, an asynchronous transfer mode, and internet interconnection.
Preferably, the data preprocessing module is used for auditing the original data, the auditing includes integrity auditing and accuracy auditing, the integrity auditing mainly checks whether data are missing, incomplete and damaged in the data transmission process, the accuracy auditing includes checking the authenticity of data and checking the correctness of the data, the method for auditing the data accuracy mainly includes logic checking and calculation checking, the logic checking mainly checks the logic and the reasonableness of the data, and the calculation checking is used for checking the correctness of each item of data in the questionnaire on the calculation result and the calculation method.
Preferably, the data modeling module collects information of lines in the running process, and the existing data and the incomplete space information are sorted and analyzed through a principal component analysis method, namely the principal component space is established, so that a data information model in the normal running process is obtained.
Preferably, the principal component analysis method is a core method based on a multivariate statistical process control fault diagnosis technology, and in an original data space, the dimension of the original data space is reduced by constructing a group of new latent variables, and further, main change information is extracted from a new mapping space, and statistical characteristics are extracted, so that a characteristic curve of the original data space is formed.
Preferably, the data receiving and sending unit receives data information, the data processing unit performs secondary processing on the data information of the data receiving and sending unit, and the data storage unit performs permanent storage and unified processing on data.
Preferably, the real-time information unit monitors and collects the temperature of the transformer and the voltage, the current and the power of each low-voltage feeder port on line through an RS485 interface connected with the transformer temperature control device and the low-voltage switch cabinet meter, the historical information unit inquires historical monitoring data including the current, the voltage, the power and the temperature and supports displaying, exporting and printing in a table or graph mode, and the station room early warning unit sends out early warning information under the condition that the current, the voltage, the power and the temperature are unstable.
Preferably, the geographical position unit positions the station house, the station house is positioned and navigated through external navigation software, an optimal travel route is provided for equipment operation and maintenance personnel, the working state unit displays data types, the stop and start states and the working states monitored by meters of all the station houses, and the running states of the equipment of all the stations are comprehensively managed.
Preferably, the statistical analysis module is used for performing classified statistics on real-time information, historical information and station room alarm information of the stations, the classified statistics data are received by the data receiving and sending unit, and then the data receiving and sending unit issues the classified statistics data to various stations under the distribution network online monitoring platform.
Advantageous effects
The invention provides a power distribution system based on big data and Internet of things control, which has the following beneficial effects:
the method has the advantages of finding defects early, repairing faults quickly and improving service quality, benefits from mature 4G wireless networks and optical fiber networks, improves data transmission speed continuously, reduces network transmission cost continuously, solves the problems of large quantity and large model difference of self equipment, and realizes quick response to find the problems and timely treatment of the problems.
Drawings
FIG. 1 is a schematic overall flow chart of the present invention.
Fig. 2 is a schematic flow diagram of a big data management center according to the present invention.
FIG. 3 is a schematic flow chart of a data monitoring module according to the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, and although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be embodied in various forms without being limited to the embodiments herein, rather, the embodiments are provided to enable the present invention to be more completely understood and to fully convey the scope of the present invention to those skilled in the art.
Also, it should be understood that the sizes of the various components shown in the drawings are not drawn to scale for convenience of illustration.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, or uses.
The techniques, methods and apparatus may not be discussed in detail in the art but should be considered part of the specification where appropriate.
Please note that: like numbers and letters in the following figures represent like items, and so, once an item is defined in one figure, it will not be discussed in detail in subsequent figures.
Embodiments of the application can be applied to computer systems/servers that can be combined with many other common or specific computing system environments or configurations, examples of known computing systems, environments, and/or configurations that may be suitable for use with the computer systems/servers, including, but not limited to: personal computer systems, server computer systems, thin clients, thick clients, hand-held or laptop devices, microprocessor systems, set-top boxes, programmable consumer electronics, networked personal computers, minicomputer systems, mainframe computer systems, distributed cloud computing environments, and distributed cloud computing environments that include any of the above-mentioned systems.
The computer system/server may be described in the general context of computer system-executable instructions (e.g., program modules) being executed by a computer system, the program modules generally including routines, programs, objects, components, logic, data structures, etc., that perform particular tasks or implement particular data types, and the computer system/server may be implemented in a distributed cloud computing environment in which tasks are performed by a remote processing device coupled through a communications network and in which program modules may be located on local or remote computer storage media including storage devices.
The invention provides a technical scheme that: the utility model provides a power distribution system based on big data and thing networked control, including the data acquisition module, data preprocessing module, data modeling module, big data management center, operation management module, data monitoring module and statistical analysis module, the data acquisition module includes perception layer unit and network layer unit, big data management center includes data transceiver unit, data processing unit and data storage unit, operation management module includes geographical position unit and operating condition unit, data monitoring module includes real-time information unit, historical information unit and station room information unit.
101. The data extraction module is used for extracting the data of the station and then transmitting the data to the information preprocessing module for data preprocessing;
in this embodiment, it is specifically noted that the sensing layer unit includes an implementation monitoring sensor installed on a control ground wire, a process wire, an insulator, a power pole, and an equipment tower, and performs real-time data intercommunication with the convergence control device by using a wireless communication interface, and the intelligent sensor component performs self-monitoring and information acquisition by using consistent information, and transmits real-time data to the convergence controller, and transmits the real-time data to the power network system by using a GPRS/GSM/CDMA information processing system.
The task of the perception layer is that when the power grid information is actually collected, the data are transmitted to the convergence controller according to a unified setting standard, which is a main task of the perception layer, and the perception layer monitors information on a ground wire, a lead, an insulator and a rod when the information is collected, so that the effect of monitoring variable values in equipment is realized.
In this embodiment, it is specifically explained that the network layer unit is a third layer in the OSI reference model, which is between the transport layer and the data link layer, and further manages data communication in the network on the function of transmitting data frames between two adjacent endpoints provided by the data link layer, and manages data to transmit data from a source end to a destination end through a plurality of intermediate nodes, so as to provide the most basic end-to-end data transmission service to the transport layer, and the service mainly includes virtual circuit packet switching and datagram packet switching, a routing algorithm, a congestion control method, an x.25 protocol, an integrated service data network, an asynchronous transmission mode, and internet interconnection.
The network layer transmits data sensed by the sensors to an electric power system, and transmits the collected real-time information to a circuit system to be subjected to unified data processing by using certain communication equipment through various different information transmission modes but using unified information transmission protocols, and concentrates all effective information into a convergence controller to further realize data forwarding.
102. And transmitting the preprocessed data to a data modeling module for diversified digital modeling and outputting a model to a big data management center.
In this embodiment, it is specifically stated that the data preprocessing module performs auditing on the original data, where the auditing includes integrity auditing and accuracy auditing, the integrity auditing mainly checks whether data is missing, incomplete, or damaged in the data transmission process, the accuracy auditing includes checking the authenticity of data and checking the correctness of the data, the method for auditing the accuracy of data mainly includes logic checking and calculation checking, the logic checking mainly checks the logic and the rationality of the data, and the calculation checking checks the correctness of each item of data in the questionnaire in the calculation result and the calculation method.
The specific method of data processing is data cleaning, data integration, data transformation and data specification, the data cleaning process "cleans" data by filling missing values, identifying or deleting outliers and solving inconsistencies, and the following aims are mainly achieved: the method comprises the steps of format standardization, abnormal data removal, error correction, removal of repeated data and data integration, wherein a data integration process combines and uniformly stores data in a plurality of data sources, a process of establishing a data warehouse is actually data integration, data transformation converts the data into a form suitable for data mining in a smooth aggregation, data generalization and normalization mode, data specifications are used for obtaining reduction representation of a data set, the reduction representation is extremely small, but still close to the integrity of original data, and the result is the same as the result before reduction.
In this embodiment, it needs to be specifically stated that the data modeling module collects information of a line in an operation process, and performs sorting and analysis on the existing data and the incomplete space information through a principal component analysis method, that is, the principal component space is established, so as to obtain a data information model in a normal operation process.
The data modeling module models the normal working condition of the power transmission line, the existing working condition needs to be analyzed in the process of establishing the statistical model, the information of the line in the normal operation process is collected, the existing data and the incomplete space information are sorted and analyzed by using a principal component analysis method, the principal component space is established in one of the key points in the process, the data information model in the normal operation process is further obtained, the implementation information can be analyzed and compared by taking the principal component space as a reference, and the actual working condition of the line is judged.
The principal component analysis method is a core method based on a multivariate statistical process control fault diagnosis technology, and in an original data space, the dimension of the original data space is reduced by constructing a group of new latent variables, so that main change information is extracted from a new mapping space, statistical characteristics are extracted, and a characteristic curve of the original data space is formed.
103. The big data management center receives the modeling information, performs secondary processing and storage on the modeling information, and then sends the modeling information to the data detection module and the operation management module;
in this embodiment, it needs to be specifically described that the data receiving and sending unit receives data information, the data processing unit performs secondary processing on the data information of the data receiving and sending unit, and the data storage unit performs permanent storage and unified processing on data.
The data receiving and transmitting unit receives the data information after the data modeling and the classification data generated by the statistical analysis module, and the data receiving and transmitting unit distributes the statistical classification data to the stations.
The data storage unit generally has functions of storing data and reading and writing data, an 8-bit binary system is used as a storage unit, namely a byte, each unit has an address, is an integer code and is represented as a binary integer, a variable in a program corresponds to a storage unit of a main memory, the name of the variable corresponds to the address of the storage unit, the content of the variable corresponds to the data stored in the unit, and the storage address is generally represented by a hexadecimal number.
104. The data monitoring module receives information processed by the big data management center and analyzes and monitors the data;
in this embodiment, it is specifically explained that the real-time information unit monitors and collects the temperature of the transformer and the voltage, current, and power of each low-voltage feeder port on line through an RS485 interface connecting the transformer temperature control device and the low-voltage switch cabinet meter, the history information unit queries historical monitoring data including the current, the voltage, the power, and the temperature, and supports displaying, exporting, and printing in a table or graphic mode, and the station room warning unit sends warning information when the current, the voltage, the power, and the temperature are unstable.
Wherein, station room early warning unit is according to established rule, in time send corresponding early warning information, to the low-voltage switchgear, when equipment voltage is unusual, when reaching the early warning value, send excessive pressure or under-voltage alarm information, when branch current surpassed its rated current-carrying capacity of sectional area, send overload alarm information, when three-phase unbalance degree reached the upper limit, send out unbalanced three-phase alarm information, when the sudden change of three-phase current is zero, send outage alarm information, to the transformer, when transformer core temperature surpassed the rated load scope, send overtemperature alarm information.
105. Real-time information is transmitted to an operation management module under the coordination of a big data management center, and the operation management module is used for importing station state information into a data monitoring module;
in this embodiment, it is specifically explained that the geographic location unit locates the position of the station building, the positioning and navigation of the station building are implemented by using external navigation software, an optimal travel route is provided for the equipment operation and maintenance personnel, the working state unit displays the data type, the shutdown and startup states and the working states monitored by the meters of all the station buildings, and the running states of the equipment of all the station buildings are managed in an integrated manner.
The working state unit displays the data types, the startup stopping states and the working states monitored by meters of all stations, the running states of the devices of all stations are managed in a comprehensive mode, the data monitoring modules are transmitted into the working state unit, and then the working state unit is classified and guided into the big data management center through the data analysis modules to achieve real-time monitoring.
106. The alarm information generated by the data monitoring module is analyzed and summarized by the statistical analysis module and then is transmitted to the big data management center, and the big data management center receives the alarm information and then releases the alarm information to the station;
in this embodiment, it is specifically explained that the statistical analysis module performs classification statistics on real-time information, historical information, and station room alarm information of the station, and the data after the classification statistics is received by the data transceiver unit, so that the data transceiver unit issues the classification statistical data to various stations under the distribution network online monitoring platform.
The statistical analysis module transmits the information classification information to the big data management center, an integrated network is further established, the information sharing effect is achieved, and favorable conditions are created for early defect finding, rapid fault repairing and service quality improvement.

Claims (10)

1. The utility model provides a power distribution system based on big data and thing networked control which characterized in that: including data acquisition module, data preprocessing module, data modeling module, big data management center, operation management module, data monitoring module and statistical analysis module, data acquisition module includes perception layer unit and network layer unit, big data management center includes data transceiver unit, data processing unit and data storage unit, operation management module includes geographical position unit and operating condition unit, data monitoring module includes real-time information unit, historical information unit and station room information unit.
2. The big data and internet of things control-based power distribution system according to claim 1, wherein: the sensing layer unit comprises a real-time monitoring sensor which is provided with a control ground wire, a process lead, an insulator, a telegraph pole and an equipment tower, real-time data intercommunication is carried out by using a wireless communication interface and convergence control equipment, an intelligent sensor part realizes self-monitoring and information acquisition by using consistent information, real-time data is transmitted to a convergence controller, and the real-time data is transmitted to a power network system by a GPRS/GSM/CDMA information processing system.
3. The big data and internet of things control-based power distribution system according to claim 1, wherein: the network layer unit is the third layer in the OSI reference model, is arranged between the transmission layer and the data link layer, further manages data communication in the network on the transmission function of data frames between two adjacent endpoints provided by the data link layer, and manages data to be transmitted from a source end to a destination end through a plurality of intermediate nodes, thereby providing the most basic end-to-end data transmission service for the transmission layer, and mainly comprises virtual circuit packet switching and datagram packet switching, a routing algorithm, a blocking control method, an X.25 protocol, an integrated service data network, an asynchronous transmission mode and internet interconnection.
4. The big data and internet of things control-based power distribution system according to claim 1, wherein: the data preprocessing module is used for auditing original data, the auditing comprises integrity auditing and accuracy auditing, the integrity auditing mainly comprises checking whether data are missing, incomplete and damaged in the data transmission process, the accuracy auditing comprises checking the authenticity of data and checking the correctness of the data, the method for auditing the accuracy of the data mainly comprises logic checking and calculation checking, the logic checking mainly comprises checking the logic and reasonability of the data, and the calculation checking is checking the correctness of each item of data in a questionnaire on a calculation result and a calculation method.
5. The big data and internet of things control-based power distribution system according to claim 1, wherein: the data modeling module collects information of a line in the operation process, and arranges and analyzes the existing data and the incomplete space information through a principal component analysis method, namely, the principal component space is established to obtain a data information model in the normal operation process.
6. The big data and internet of things control-based power distribution system according to claim 1, wherein: the principal component analysis method is a core method based on a multivariate statistical process control fault diagnosis technology, and in an original data space, the dimension of the original data space is reduced by constructing a group of new latent variables, so that main change information is extracted from a new mapping space, statistical characteristics are extracted, and a characteristic curve of the original data space is formed.
7. The big data and internet of things control-based power distribution system according to claim 1, wherein: the data receiving and sending unit receives data information, the data processing unit carries out secondary processing on the data information of the data receiving and sending unit, and the data storage unit carries out permanent storage and unified processing on data.
8. The big data and internet of things control-based power distribution system according to claim 1, wherein: the real-time information unit monitors and collects the temperature of the transformer and the voltage, the current and the power of each low-voltage feeder port on line through an RS485 interface connected with the temperature control device of the transformer and a low-voltage switch cabinet meter, the historical information unit inquires historical monitoring data including the current, the voltage, the power and the temperature and supports displaying, exporting and printing in a table or graph mode, and the station room early warning unit station sends out early warning information under the condition that the current, the voltage, the power and the temperature are unstable.
9. The big data and internet of things control-based power distribution system according to claim 1, wherein: the geographical position unit is used for positioning the position of the station house, positioning and navigation of the station house are realized through external navigation software, an optimal travel route is provided for equipment operation and maintenance personnel, the working state unit is used for displaying the data type, the stop and start states and the working states monitored by meters of all the stations, and the running state of the equipment of each station is comprehensively managed.
10. The big data and internet of things control-based power distribution system according to claim 1, wherein: the statistical analysis module is used for carrying out classification statistics on real-time information, historical information and station room alarm information of stations, data are received by the data receiving and sending unit after the classification statistics, and then the data receiving and sending unit issues the classification statistical data to various stations under the distribution network online monitoring platform.
CN202211183372.3A 2022-09-27 2022-09-27 Power distribution system based on big data and thing networked control Pending CN115632473A (en)

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