CN111082522A - Distribution network state monitoring and fault processing system based on ubiquitous power Internet of things - Google Patents

Distribution network state monitoring and fault processing system based on ubiquitous power Internet of things Download PDF

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Publication number
CN111082522A
CN111082522A CN201911225146.5A CN201911225146A CN111082522A CN 111082522 A CN111082522 A CN 111082522A CN 201911225146 A CN201911225146 A CN 201911225146A CN 111082522 A CN111082522 A CN 111082522A
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CN
China
Prior art keywords
distribution network
power distribution
power
data
fault
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911225146.5A
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Chinese (zh)
Inventor
佟辉
于滨硕
张弼驰
李张弘泰
王久阳
辛业春
王威儒
刘科
陈厚合
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Songyuan Power Supply Co Of State Grid Jilinsheng Electric Power Supply Co
Northeast Electric Power University
Original Assignee
Songyuan Power Supply Co Of State Grid Jilinsheng Electric Power Supply Co
Northeast Dianli University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Songyuan Power Supply Co Of State Grid Jilinsheng Electric Power Supply Co, Northeast Dianli University filed Critical Songyuan Power Supply Co Of State Grid Jilinsheng Electric Power Supply Co
Priority to CN201911225146.5A priority Critical patent/CN111082522A/en
Publication of CN111082522A publication Critical patent/CN111082522A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/088Aspects of digital computing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/7869
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/128Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol

Abstract

The invention relates to a distribution network state monitoring and fault processing system based on a ubiquitous power internet of things, and belongs to the field of power distribution network state monitoring and management of a power system. The method integrates the data sharing, fault positioning and emergency repair commanding of the power distribution network; the system comprises a perception layer, a network layer, a platform layer and an application layer, wherein the perception layer comprises a power utilization information acquisition and marketing power distribution network data sharing function; the network layer realizes the function of data physical network connection; the platform layer is divided into a real time zone and a non-real time zone, and a firewall is arranged between the energy management service part of the real time zone and the electric power metering service part of the non-real time zone; the application layer realizes the functions of data sharing, fault positioning and emergency repair command of the power distribution network. The method has the characteristics of high monitoring efficiency, accurate data, comprehensive service, economy, intelligence and the like, and has great guiding significance for fault prediction and fault first-aid repair of the power distribution network.

Description

Distribution network state monitoring and fault processing system based on ubiquitous power Internet of things
Technical Field
The invention relates to the field of power distribution network state monitoring and management of a power system, in particular to a distribution network state monitoring and fault processing system based on a ubiquitous power internet of things.
Background
In order to build a ubiquitous power internet of things, the existing data or data obtained by short-term construction needs to be utilized comprehensively, the intelligent level of the existing power distribution network is rapidly improved, and interconnection and intercommunication, high-efficiency intelligence of a power grid are realized.
At present, the ubiquitous power internet of things is in the initial stage of research and development, is limited by multiple aspects of equipment and technology, does not fully utilize the existing huge data in a power distribution network, and also has serious 'blind finger' and 'blind repair' problems in command and first-aid repair of the power distribution network, so that the ubiquitous power internet of things-based distribution network state monitoring and fault handling system has great research value.
Disclosure of Invention
The invention aims to provide a distribution network state monitoring and fault processing system based on a ubiquitous power Internet of things, and solves the problems of 'blind finger', 'blind repair' and the like in the conventional power distribution network rush repair in order to build the ubiquitous power Internet of things. The intelligent level of the power distribution network is effectively improved, and resources are saved.
The above object of the present invention is achieved by the following technical solutions:
the distribution network state monitoring and fault processing system based on the ubiquitous power Internet of things integrates distribution network data sharing, fault positioning and emergency repair commanding; the system comprises a perception layer, a network layer, a platform layer and an application layer, wherein the perception layer comprises a power utilization information acquisition and marketing power distribution network data sharing function; the network layer realizes the function of data physical network connection; the platform layer is divided into a real time zone and a non-real time zone, and a firewall is arranged between the energy management service part of the real time zone and the electric power metering service part of the non-real time zone; the application layer realizes the functions of data sharing, fault positioning and emergency repair command of the power distribution network.
The data sharing of the power distribution network is realized as follows: various electrical information acquired by a power distribution network data acquisition terminal is reported to a power distribution station area, the power distribution station area carries out data comprehensive processing, and a data acquisition end of the power distribution network mainly adopts a synchronous Phasor Data Concentrator (PDC) device to realize data acquisition, storage and forwarding.
The fault location of the power distribution network is realized by the following steps: firstly, constructing a power distribution network disconnection fault diagnosis feature library, including power utilization information acquisition, data preprocessing and fault diagnosis feature analysis; secondly, selecting fault diagnosis characteristics and discretizing data; finally, association rule mining and fault diagnosis are achieved through the main characteristics of discretized disconnection fault diagnosis of the power distribution network; in the process of association rule mining and fault diagnosis, the minimum support degree and the minimum confidence degree are set firstly, and data to be diagnosed are compared with a power distribution network disconnection fault diagnosis rule base, so that the fault diagnosis and positioning results of the power distribution network are realized.
The realization method of the emergency repair command of the power distribution network comprises the following steps: the running characteristics of a low-voltage network of the power grid distribution area are mastered through the uploaded data information of the distribution area, so that the characteristic analysis and decision-making assisting capability are greatly improved; according to the real-time monitoring of the data change of the distribution transformer area, the fault pre-judgment is carried out in time, the emergency repair is actively participated in, and the emergency repair information is issued through a communication means.
The invention has the beneficial effects that: according to the distribution network state monitoring and fault processing system based on the ubiquitous power Internet of things, the problems of 'blind finger' and 'blind repair' in the distribution network can be effectively solved by utilizing the electric data acquired by the existing power grid through data acquisition and sharing, fault area positioning and emergency repair command services, so that the economic investment is reduced, and the intelligent level of the distribution network is improved. The intelligent emergency repair command system has the functions of data sharing, fault positioning and emergency repair command of the power distribution network, and is efficient and punctual in data sharing, rapid and accurate in fault positioning and intelligent and economical in emergency repair command. The method has the characteristics of high monitoring efficiency, accurate data, comprehensive service, economy, intelligence and the like, and has great guiding significance for fault prediction and fault first-aid repair of the power distribution network.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
Fig. 1 is a block diagram of an intelligent state monitoring and fault processing system of a power distribution network based on a ubiquitous power internet of things framework, disclosed by the invention;
fig. 2 is a schematic diagram of an intelligent state monitoring and fault handling system of a power distribution network based on a ubiquitous power internet of things framework, disclosed by the invention;
fig. 3 is a flow chart of the power distribution network fault location algorithm of the present invention.
Detailed Description
The details of the present invention and its embodiments are further described below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the distribution network state monitoring and fault handling system based on the ubiquitous power internet of things of the present invention integrates distribution network data sharing, fault location, and emergency repair command; the system comprises a perception layer, a network layer, a platform layer and an application layer, wherein the perception layer comprises a power utilization information acquisition and marketing power distribution network data sharing function; the network layer realizes the function of data physical network connection; the platform layer is divided into a real time zone and a non-real time zone, and a firewall is arranged between the energy management service part of the real time zone and the electric power metering service part of the non-real time zone; the application layer realizes the functions of data sharing, fault positioning and emergency repair command of the power distribution network.
The data sharing of the power distribution network is realized as follows: various electrical information acquired by the power distribution network data acquisition terminal is reported to a power distribution station area, and the electrical information comprises electrical parameters such as voltage, current, frequency and harmonic wave. The distribution network area carries out data comprehensive processing, carries out effective analysis and prediction, and can realize the distribution network data sharing function of completing operation and intelligent interaction. The Data acquisition end of the power distribution network mainly adopts a synchronous Phasor Data Concentrator (PDC) device, and can efficiently realize the functions of Data acquisition, storage and forwarding. The communication modes comprise different modes such as a fiber Ethernet channel, an EPON optical network, a power line carrier, a wireless private network and the like, the diversification of the communication modes effectively ensures different information transmission adaptation occasions, and the communication mode has higher reliability and adaptability. The synchrophasor data concentrator acquires electrical parameter information, and collects and uploads data to a power distribution area in different communication modes so as to realize a power distribution network data sharing function.
The fault location of the power distribution network is realized by the following steps: firstly, constructing a power distribution network disconnection fault diagnosis feature library, including power utilization information acquisition, data preprocessing and fault diagnosis feature analysis; secondly, selecting fault diagnosis characteristics and discretizing data; finally, association rule mining and fault diagnosis are achieved through the main characteristics of discretized disconnection fault diagnosis of the power distribution network; in the process of association rule mining and fault diagnosis, the minimum support degree and the minimum confidence degree are set firstly, and data to be diagnosed are compared with a power distribution network disconnection fault diagnosis rule base, so that the fault diagnosis and positioning results of the power distribution network are realized.
The realization method of the emergency repair command of the power distribution network comprises the following steps: the running characteristics of a low-voltage network of the power grid distribution area are mastered through the uploaded data information of the distribution area, so that the characteristic analysis and decision-making assisting capability are greatly improved; according to the real-time monitoring of the data change of the distribution transformer area, the fault pre-judgment is carried out in time, the emergency repair is actively participated in, and the emergency repair information is issued through a communication means.
This embodiment the intelligent state monitoring of distribution network and fault handling system of ubiquitous electric power thing networking, carry out power consumption information acquisition and marketing distribution network data sharing on the perception layer, the network layer realizes data physics network connection, the platform layer divide into real time zone and non-real time zone, has hot wall between the energy management service part in real time zone and the electric power measurement service part in non-real time zone, the application layer carries out distribution network data sharing, fault location, salvagees the commander.
The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a distribution network state monitoring and fault handling system based on ubiquitous electric power thing networking which characterized in that: the method integrates the data sharing, fault positioning and emergency repair commanding of the power distribution network; the system comprises a perception layer, a network layer, a platform layer and an application layer, wherein the perception layer comprises a power utilization information acquisition and marketing power distribution network data sharing function; the network layer realizes the function of data physical network connection; the platform layer is divided into a real time zone and a non-real time zone, and a firewall is arranged between the energy management service part of the real time zone and the electric power metering service part of the non-real time zone; the application layer realizes the functions of data sharing, fault positioning and emergency repair command of the power distribution network.
2. The distribution network state monitoring and fault handling system based on the ubiquitous power internet of things of claim 1, wherein: the data sharing of the power distribution network is realized as follows: various electrical information acquired by a power distribution network data acquisition terminal is reported to a power distribution station area, the power distribution station area carries out data comprehensive processing, and a data acquisition end of the power distribution network mainly adopts a synchronous Phasor Data Concentrator (PDC) device to realize data acquisition, storage and forwarding.
3. The distribution network state monitoring and fault handling system based on the ubiquitous power internet of things of claim 1, wherein: the fault location of the power distribution network is realized by the following steps: firstly, constructing a power distribution network disconnection fault diagnosis feature library, including power utilization information acquisition, data preprocessing and fault diagnosis feature analysis; secondly, selecting fault diagnosis characteristics and discretizing data; finally, association rule mining and fault diagnosis are achieved through the main characteristics of discretized disconnection fault diagnosis of the power distribution network; in the process of association rule mining and fault diagnosis, the minimum support degree and the minimum confidence degree are set firstly, and data to be diagnosed are compared with a power distribution network disconnection fault diagnosis rule base, so that the fault diagnosis and positioning results of the power distribution network are realized.
4. The distribution network state monitoring and fault handling system based on the ubiquitous power internet of things of claim 1, wherein: the realization method of the emergency repair command of the power distribution network comprises the following steps: the running characteristics of a low-voltage network of the power grid distribution area are mastered through the uploaded data information of the distribution area, so that the characteristic analysis and decision-making assisting capability are greatly improved; according to the real-time monitoring of the data change of the distribution transformer area, the fault pre-judgment is carried out in time, the emergency repair is actively participated in, and the emergency repair information is issued through a communication means.
CN201911225146.5A 2019-12-04 2019-12-04 Distribution network state monitoring and fault processing system based on ubiquitous power Internet of things Pending CN111082522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911225146.5A CN111082522A (en) 2019-12-04 2019-12-04 Distribution network state monitoring and fault processing system based on ubiquitous power Internet of things

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911225146.5A CN111082522A (en) 2019-12-04 2019-12-04 Distribution network state monitoring and fault processing system based on ubiquitous power Internet of things

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111983383A (en) * 2020-08-17 2020-11-24 海南电网有限责任公司信息通信分公司 Power system fault first-aid repair method and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111983383A (en) * 2020-08-17 2020-11-24 海南电网有限责任公司信息通信分公司 Power system fault first-aid repair method and system

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