CN115021407A - Fault discrimination system of distribution network automation system and operation method thereof - Google Patents

Fault discrimination system of distribution network automation system and operation method thereof Download PDF

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Publication number
CN115021407A
CN115021407A CN202210752752.8A CN202210752752A CN115021407A CN 115021407 A CN115021407 A CN 115021407A CN 202210752752 A CN202210752752 A CN 202210752752A CN 115021407 A CN115021407 A CN 115021407A
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CN
China
Prior art keywords
distribution network
abnormal
automation system
direct current
alarm signal
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Pending
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CN202210752752.8A
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Chinese (zh)
Inventor
邓爱娇
李爱平
熊锋俊
吴熳红
谢干淼
郑晓东
胡燕萍
张帆
陈芳
郭宗宝
谢莹
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.)
Guangdong Power Grid Co Ltd
Zhuhai Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Zhuhai Power Supply Bureau of Guangdong Power Grid Co Ltd
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Priority to CN202210752752.8A priority Critical patent/CN115021407A/en
Publication of CN115021407A publication Critical patent/CN115021407A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
    • 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
    • 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
    • H02J2213/00—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network
    • H02J2213/10—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network using simultaneously two or more different transmission means
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation

Abstract

The invention discloses a fault discrimination system of a distribution network automation system and an operation method thereof, which solve the technical problems that the conventional distribution network automation troubleshooting adopts a manual troubleshooting mode, is time-consuming and labor-consuming, and influences the normal operation of the distribution network automation system. Wherein, the system includes: the device comprises a direct current monitoring module and a fault judging module; the direct current monitoring module is connected with a direct current screen of the distribution network automation system and used for acquiring direct current data corresponding to the direct current screen; the fault judging module is connected with the direct current monitoring module and used for sending a first alarm signal to a distribution network main station of the distribution network automation system when the direct current data are judged to be abnormal; the fault judgment module is connected with a communication manager of the distribution network automation system and used for sending a second alarm signal to the distribution network main station when judging that the communication data corresponding to the communication manager is abnormal; and the fault judgment module is connected with the encryption module of the distribution network automation system and is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module is abnormal.

Description

Fault discrimination system of distribution network automation system and operation method thereof
Technical Field
The invention relates to the technical field of distribution networks, in particular to a fault discrimination system of a distribution network automation system and an operation method thereof.
Background
The distribution network automation terminal has a conventional relay protection function, a voltage and current type function and an intelligent distribution type function, and a distribution network automation system consisting of the distribution network automation terminal and a distribution network main station can provide a lot of convenience for a power grid, so that the distribution network automation terminal is widely used in the power grid.
With the acceleration of the construction of a distribution network, the number of station investment is rapidly increased, the fault problem of the distribution network automation system is increasingly prominent, and the normal operation of the distribution network automation system is influenced due to the time and labor consumption of a manual checking mode.
Disclosure of Invention
The invention provides a fault discrimination system of a distribution network automation system and an operation method thereof, which can timely and automatically check the fault of the distribution network automation system and ensure the normal operation of the distribution network automation system.
In view of the above, a first aspect of the present invention provides a fault determination system for a distribution network automation system, including:
the system comprises a direct current monitoring module and a fault judging module;
the direct current monitoring module is connected with a direct current screen of the distribution network automation system and used for acquiring direct current data corresponding to the direct current screen;
the fault judging module is connected with the direct current monitoring module and used for sending a first alarm signal to a distribution network main station of the distribution network automation system when the direct current data are judged to be abnormal;
the fault judging module is connected with a communication manager of the distribution network automation system and used for sending a second alarm signal to the distribution network master station when judging that the communication data corresponding to the communication manager is abnormal;
and the fault judgment module is connected with an encryption module of the distribution network automation system and is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module is abnormal.
Optionally, the dc data includes: the first alarm signal is that the AC input voltage of the DC screen is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the AC input voltage of the DC screen is within a preset first numerical range, and if not, outputting the abnormal AC input voltage of the DC screen to a distribution network main station of the distribution network automation system.
Optionally, the dc data includes: the first alarm signal is that the output voltage of the rectifier is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the output voltage of the rectifier is within a preset second value range, if not, outputting the abnormal output voltage of the rectifier to a distribution network main station of the distribution network automation system.
Optionally, the dc data includes: the first alarm signal is the abnormal voltage of the single storage battery;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the voltage of the single storage battery is within a preset third numerical value range, and if not, outputting the abnormal voltage of the single storage battery to a distribution network main station of the distribution network automation system.
Optionally, the communication data includes: the second alarm signal is communication interruption;
when judging that the communication data corresponding to the communication manager is abnormal, sending a second alarm signal to the distribution network main station, specifically comprising:
and judging whether the uplink and downlink communication signals corresponding to the communication management machine are communication interruption signals, and if so, outputting communication interruption to the distribution network main station.
Optionally, the communication data includes: the communication manager transmits data to the encryption module, and the second alarm signal is that the communication manager is abnormal;
when judging that the communication data corresponding to the communication manager is abnormal, sending a second alarm signal to the distribution network main station, specifically comprising:
and judging whether the transmission data between the communication manager and the encryption module is abnormal or not, and if so, outputting the abnormal communication manager to the distribution network main station.
Optionally, the communication manager is configured to collect terminal data of a distribution network automation terminal in the distribution network automation system; and the encryption module is also used for sending the terminal data or the communication data to the distribution network main station through a preset communication address via the encryption module.
A second aspect of the present invention provides a method for determining a fault in a distribution network automation system, which is applied to any one of the operations of the fault determination system in the distribution network automation system of the first aspect, and includes:
the method comprises the steps that a direct current monitoring module obtains direct current data corresponding to a direct current screen of the distribution network automation system;
when the fault judgment module judges that the direct current data are abnormal, a first alarm signal is sent to a distribution network main station of the distribution network automation system;
the fault judgment module is used for sending a second alarm signal to the distribution network main station when judging that the communication data corresponding to the communication management machine of the distribution network automation system is abnormal;
and the fault judgment module is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module of the distribution network automation system is abnormal.
Optionally, the dc data includes: the first alarm signal is that the AC input voltage of the DC screen is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the AC input voltage of the DC screen is within a preset first numerical range, and if not, outputting the abnormal AC input voltage of the DC screen to a distribution network main station of the distribution network automation system.
Optionally, the dc data includes: the first alarm signal is that the output voltage of the rectifier is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the output voltage of the rectifier is within a preset second value range, if not, outputting the abnormal output voltage of the rectifier to a distribution network main station of the distribution network automation system.
According to the technical scheme, the invention has the following advantages:
the invention relates to a fault discrimination system of a distribution network automation system, which comprises: the system comprises a direct current monitoring module and a fault judging module; the direct current monitoring module is connected with a direct current screen of the distribution network automation system and used for acquiring direct current data corresponding to the direct current screen; the fault judging module is connected with the direct current monitoring module and used for sending a first alarm signal to a distribution network main station of the distribution network automation system when the direct current data are judged to be abnormal; the fault judgment module is connected with a communication manager of the distribution network automation system and used for sending a second alarm signal to the distribution network main station when judging that the communication data corresponding to the communication manager is abnormal; and the fault judgment module is connected with the encryption module of the distribution network automation system and is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module is abnormal.
The fault discrimination system of the distribution network automation system can detect and discriminate communication data, encrypted data and direct current data of the distribution network automation system, can timely and automatically troubleshoot faults of the distribution network automation system, and ensures normal operation of the distribution network automation system, thereby solving the technical problems that the existing distribution network automation troubleshooting adopts a manual troubleshooting mode, consumes time and labor, and affects normal operation of the distribution network automation system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an embodiment of a fault determination system of a distribution network automation system according to an embodiment of the present invention;
fig. 2 is an installation diagram of a fault determination system of a distribution network automation system according to an embodiment of the present invention;
fig. 3 is a first schematic view illustrating a working principle of a fault determination system of a distribution network automation system according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a working principle of a fault determination system of a distribution network automation system according to an embodiment of the present invention;
fig. 5 is a schematic flowchart of an embodiment of a method for determining a fault of a distribution network automation system according to the embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a fault discrimination system of a distribution network automation system and an operation method thereof, and solves the technical problems that the conventional distribution network automation troubleshooting is time-consuming and labor-consuming in a manual troubleshooting mode and influences the normal operation of the distribution network automation system.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Before describing an embodiment of the fault determination system for a distribution network automation system according to the present invention, the distribution network automation system will be described first.
The distribution network automation system includes: distribution network automation terminal, communication management machine, encryption module, direct current screen and distribution network main website. And the three-remote (remote measurement, remote signaling and remote control) data of the distribution network automation terminal are sent to the communication management machine, and the communication management machine communicates with the distribution network main station through the encryption module according to the distributed network address IP 1.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a fault determination system of a distribution network automation system according to the embodiment of the present invention.
In this embodiment, a system for determining a fault of a distribution network automation system may specifically include: the system comprises a direct current monitoring module and a fault judging module;
the direct current monitoring module is connected with a direct current screen of the distribution network automation system and used for acquiring direct current data corresponding to the direct current screen;
the fault judging module is connected with the direct current monitoring module and used for sending a first alarm signal to a distribution network main station of the distribution network automation system when the direct current data are judged to be abnormal;
the fault judgment module is connected with a communication manager of the distribution network automation system and used for sending a second alarm signal to the distribution network main station when judging that the communication data corresponding to the communication manager is abnormal;
and the fault judgment module is connected with the encryption module of the distribution network automation system and is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module is abnormal.
As shown in fig. 2, the dc monitoring module of the present invention is connected to the dc screen of the distribution network automation system, and the fault determination module is connected to the dc monitoring module, the communication manager, and the encryption module, so as to detect and determine the data corresponding to each module.
It is understood that the communication manager obtains data from the distribution network automation terminal, i.e. communicates with the distribution network automation terminal, so the communication data corresponding to the communication manager may include the transmission and reception signals between the communication manager and the distribution network automation terminal. Further, the communication data corresponding to the communication manager may also include a transmission and reception signal between the communication manager and the encryption module, which is not specifically limited in this embodiment.
The encrypted data corresponding to the encryption module can be a power signal of the encryption module, and if no power signal exists or the value of the power signal is 0, the third alarm signal indicates that the power supply of the encryption module is abnormal; the encrypted data can also be SIM card connection information of the encryption module, and if the SIM card is not detected, the third alarm signal is a SIM card fault; the encrypted data may also be TCP connection information of the encryption module, and if the TCP connection information is that the tunnel is not established, the corresponding third alarm signal is a local failure of the encryption module.
The fault discrimination system of the distribution network automation system in the embodiment can detect and discriminate communication data, encrypted data and direct current data of the distribution network automation system, can timely and automatically troubleshoot faults of the distribution network automation system, and ensures normal operation of the distribution network automation system, thereby solving the technical problems that the existing distribution network automation troubleshooting adopts a manual troubleshooting mode, consumes time and labor, and affects normal operation of the distribution network automation system.
The above is a detailed description of a first embodiment of a fault determination system of a distribution network automation system according to an embodiment of the present invention, and the following is a detailed description of a second embodiment of a fault determination system of a distribution network automation system according to an embodiment of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a fault determination system of a distribution network automation system according to the embodiment of the present invention.
In this embodiment, a system for determining a fault of a distribution network automation system may specifically include: the system comprises a direct current monitoring module and a fault judging module;
the direct current monitoring module is connected with a direct current screen of the distribution network automation system and used for acquiring direct current data corresponding to the direct current screen;
the fault judging module is connected with the direct current monitoring module and used for sending a first alarm signal to a distribution network main station of the distribution network automation system when the direct current data are judged to be abnormal;
the fault judgment module is connected with a communication manager of the distribution network automation system and used for sending a second alarm signal to the distribution network main station when judging that the communication data corresponding to the communication manager is abnormal;
and the fault judgment module is connected with the encryption module of the distribution network automation system and is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module is abnormal.
When the fault judging module judges whether the direct current data is abnormal, the direct current data can be various, and the corresponding first alarm signals are also various. For example: (1) the direct current data are direct current screen 2-path alternating current input voltages dy1 and dy2, and if dy1 and dy2 are not in a set value range, a signal of 'direct current screen 2-path alternating current input voltage abnormity' is generated; (2) the direct current data are rectifier output voltages DY1 and DY2, and if DY1 and DY2 are not in the set value range, a rectifier output voltage abnormity signal is generated; (3) the mainstream data is battery cell voltages xdy1, xdy2, xdy3 and xdy4, and if xdy1, xdy2, xdy3 and xdy4 are not in the set value range, a signal of 'abnormal battery cell voltage' is generated. Namely:
specifically, in an alternative embodiment, the dc data includes: the first alarm signal is that the AC input voltage of the DC screen is abnormal;
when judging that the direct current data is unusual, send first alarm signal to distribution network major website of distribution network automation system, specifically include:
and judging whether the AC input voltage of the DC screen is within a preset first numerical range, and if not, outputting the abnormal AC input voltage of the DC screen to a distribution network main station of the distribution network automation system.
Optionally, in an embodiment, the dc data includes: the first alarm signal is that the output voltage of the rectifier is abnormal;
when judging that the direct current data is unusual, send first alarm signal to distribution network major website of distribution network automation system, specifically include:
and judging whether the output voltage of the rectifier is within a preset second value range, and if not, outputting the abnormal output voltage of the rectifier to a distribution network main station of the distribution network automation system.
Further, in another alternative embodiment, the dc data includes: the first alarm signal is the voltage abnormity of the single storage battery;
when judging that the direct current data is unusual, send first alarm signal to distribution network major website of distribution network automation system, specifically include:
and judging whether the voltage of the single storage battery is within a preset third numerical value range, and if not, outputting the abnormal voltage of the single storage battery to a distribution network main station of the distribution network automation system.
When the fault judging module judges whether the communication data corresponding to the communication manager is abnormal, the communication data may be various, and the corresponding second alarm signal is also various, for example: (1) the communication data are communication signals T1, T2.. TN of the communication manager, and when TN is 1, the communication is normal; when TN is equal to 0, the communication is interrupted, and the corresponding second alarm signal is the communication interruption; (2) the communication data is data information of an address IP1 in the encryption module, and if the data is judged to be abnormal, the second alarm signal is "communication manager abnormal".
In an alternative embodiment, communicating data comprises: the second alarm signal is communication interruption;
when judging that the communication data that the communication supervisor corresponds is unusual, send second alarm signal to distribution network main website, specifically include:
and judging whether the uplink and downlink communication signals corresponding to the communication manager are communication interruption signals, and if so, outputting communication interruption to the distribution network main station.
It is understood that the uplink and downlink communication signals include: an upstream communication signal and a downstream communication signal. Correspondingly, when the judgment is carried out, not only can the judgment be carried out on whether the communication interruption occurs to the uplink communication signal, but also the judgment can be carried out on whether the communication interruption occurs to the downlink communication signal.
In another alternative embodiment, communicating the data includes: data are transmitted between the communication manager and the encryption module, and the second alarm signal is that the communication manager is abnormal;
when judging that the communication data that the communication supervisor corresponds is unusual, send second alarm signal to distribution network main website, specifically include:
and judging whether the transmission data between the communication manager and the encryption module is abnormal or not, and if so, outputting the abnormal communication manager to the distribution network master station. The transmission data may be data transmitted from the communication manager to the cryptographic module, or may be data transmitted from the cryptographic module to the communication manager.
Further, the communication manager in this embodiment is configured to collect terminal data of a distribution network automation terminal in a distribution network automation system; and the network distribution master station is also used for sending terminal data or communication data to the network distribution master station through a preset communication address and the encryption module.
In this embodiment, data information such as three remote (telemetry, remote signaling, remote control) of the distribution network automation terminals 1 to N is sent to the communication manager, and the communication manager communicates with the distribution network master station through the encryption module according to the allocated network address IP 1; the direct current monitoring module collects data information of the direct current screen and transmits the data information to the fault judging module; the fault judging module can analyze data information transmitted by the communication manager, the direct current monitoring module and the encryption module, judge whether a fault occurs and generate a fault alarm signal, and the fault alarm signal is communicated with the distribution network main station through the encryption module according to the distributed network address IP 2. The network address IP1 and the network address IP2 are two data channels and are independent of each other.
For convenience of understanding, the working principle of the fault determination system of the distribution network automation system is described in this embodiment, and as shown in fig. 3, the working principle of the fault determination module side is schematically illustrated.
The first step is as follows: and the fault judging system initializes the data of each module.
The second step is that: and acquiring data acquired by the direct current monitoring module, the communication manager and the encryption module, and adopting an RS232 communication mode.
The third step: respectively matching the acquired data information with a set database 1, a set database 2 and a set database 3, wherein the data in the database 1 is abnormal data corresponding to direct current data, the data in the database 2 is abnormal data corresponding to communication data, and the data in the database 3 is abnormal data corresponding to encrypted data; it is understood that the number of databases may be set, and the number and types of abnormal data may be set.
The fourth step: if the data are not matched, no output is performed; if the data are matched, a corresponding alarm signal (namely an abnormal signal in the graph) is generated and output.
The fifth step: for the alarm signals, the alarm signals output by the database 1 and the database 2 in a matching way are encrypted, and the alarm signals output by the database 3 in a matching way are represented by the brightness of the signal lamps to carry out on-site signal lamp alarm.
And a sixth step: the information after data encryption is transmitted to the distribution network main station in a wireless communication or optical fiber communication mode, and remote monitoring of the communication state of the distribution network station is achieved.
Fig. 4 is a schematic diagram of the operation principle of the distribution network master station.
The first step is as follows: a network distribution master station end monitors communication interruption of a network distribution station;
the second step is that: according to the acquired data information, the following judgment can be made: if the alarm signal exists, the fault reason and the processing method can be determined; if no alarm signal exists, only the IP1 communication is interrupted at the moment, the communication manager can be determined to be abnormal, only the IP2 communication is interrupted at the moment, the fault judgment module can be determined to be abnormal, and if the IP1 and the IP2 both communicate and are interrupted, the encryption module can be determined to be abnormal;
the third step: and starting a corresponding defect elimination flow according to the judgment condition to finish the defect elimination of the fault.
According to the method and the device, through automatic fault judgment, the generation factors of communication faults can be automatically analyzed and transmitted to the distribution network main station according to the existing collected information quantity, the distribution network main station forwards the generated factors to corresponding professional operation and maintenance personnel, the field faults can be preliminarily judged, particularly, the major defects of secondary electroless DC screen are alarmed, personnel, work plans, tools and emergency repair management are reasonably arranged according to the fault level, the situation that the switch loses the automatic function due to no power supply is avoided, and the troubleshooting and overhauling work efficiency is greatly improved.
The above is a detailed description of an embodiment two of the fault determination system of the distribution network automation system according to the embodiment of the present invention, and the following is a detailed description of an embodiment of the fault determination method of the distribution network automation system according to the embodiment of the present invention.
Referring to fig. 5, fig. 5 is a schematic flowchart illustrating an embodiment of a method for determining a fault of a distribution network automation system according to the present invention.
The method for determining the fault of the distribution network automation system in the embodiment is applied to the operation of the fault determination system of the distribution network automation system in the embodiment, and comprises the following steps:
501, a direct current monitoring module acquires direct current data corresponding to a direct current screen of a distribution network automation system;
step 502, when the fault judgment module judges that the direct current data is abnormal, a first alarm signal is sent to a distribution network main station of a distribution network automation system;
step 503, the fault judging module is configured to send a second alarm signal to the distribution network master station when judging that the communication data corresponding to the communication manager of the distribution network automation system is abnormal;
step 504, the fault judging module is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module of the distribution network automation system is abnormal.
Optionally, the dc data includes: the first alarm signal is that the AC input voltage of the DC screen is abnormal;
when judging that the direct current data is unusual, send first alarm signal to distribution network major website of distribution network automation system, specifically include:
and judging whether the AC input voltage of the DC screen is within a preset first numerical range, and if not, outputting the abnormal AC input voltage of the DC screen to a distribution network main station of the distribution network automation system.
Optionally, the dc data includes: the first alarm signal is that the output voltage of the rectifier is abnormal;
when judging that the direct current data is unusual, send first alarm signal to distribution network major website of distribution network automation system, specifically include:
and judging whether the output voltage of the rectifier is within a preset second value range, and if not, outputting the abnormal output voltage of the rectifier to a distribution network main station of the distribution network automation system.
Optionally, the dc data includes: the first alarm signal is the voltage abnormity of the single storage battery;
when judging that the direct current data is unusual, send first alarm signal to distribution network major website of distribution network automation system, specifically include:
and judging whether the voltage of the single storage battery is within a preset third numerical value range, and if not, outputting the abnormal voltage of the single storage battery to a distribution network main station of the distribution network automation system.
Optionally, the communication data comprises: the second alarm signal is communication interruption;
when judging that the communication data that the communication supervisor corresponds is unusual, send second alarm signal to distribution network main website, specifically include:
and judging whether the uplink and downlink communication signals corresponding to the communication management machine are communication interruption signals, and if so, outputting communication interruption to the distribution network master station.
It is understood that the uplink and downlink communication signals include: an upstream communication signal and a downstream communication signal. Correspondingly, when the judgment is carried out, not only can the judgment be carried out on whether the communication interruption occurs in the uplink communication signal, but also the judgment can be carried out on whether the communication interruption occurs in the downlink communication signal.
Optionally, the communication data comprises: data are transmitted between the communication manager and the encryption module, and the second alarm signal is that the communication manager is abnormal;
when judging that the communication data that the communication supervisor corresponds is unusual, send second alarm signal to distribution network main website, specifically include:
and judging whether the transmission data between the communication manager and the encryption module is abnormal or not, and if so, outputting the abnormal communication manager to the distribution network master station.
The transmission data may be data transmitted from the communication manager to the cryptographic module, or may be data transmitted from the cryptographic module to the communication manager.
Optionally, the communication manager is configured to collect terminal data of a distribution network automation terminal in the distribution network automation system; and the network distribution main station is also used for sending terminal data or communication data to the distribution network main station through a preset communication address and the encryption module.
According to the fault discrimination method for the distribution network automation system, communication data, encrypted data and direct current data of the distribution network automation system can be detected and discriminated, faults of the distribution network automation system can be timely and automatically checked, and normal operation of the distribution network automation system is guaranteed, so that the technical problems that time and labor are consumed and normal operation of the distribution network automation system is influenced due to the fact that an existing manual checking mode is adopted for distribution network automation checking are solved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one of skill in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A fault discrimination system for a distribution network automation system, comprising: the system comprises a direct current monitoring module and a fault judging module;
the direct current monitoring module is connected with a direct current screen of the distribution network automation system and used for acquiring direct current data corresponding to the direct current screen;
the fault judging module is connected with the direct current monitoring module and used for sending a first alarm signal to a distribution network main station of the distribution network automation system when the direct current data are judged to be abnormal;
the fault judgment module is connected with a communication manager of the distribution network automation system and used for sending a second alarm signal to the distribution network main station when judging that the communication data corresponding to the communication manager is abnormal;
and the fault judgment module is connected with an encryption module of the distribution network automation system and is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module is abnormal.
2. The system of claim 1, wherein the dc data comprises: the first alarm signal is that the AC input voltage of the DC screen is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the AC input voltage of the DC screen is within a preset first numerical range, and if not, outputting the abnormal AC input voltage of the DC screen to a distribution network main station of the distribution network automation system.
3. The system of claim 1, wherein the dc data comprises: the first alarm signal is that the output voltage of the rectifier is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the output voltage of the rectifier is within a preset second value range, if not, outputting the abnormal output voltage of the rectifier to a distribution network main station of the distribution network automation system.
4. The system of claim 1, wherein the dc data comprises: the first alarm signal is the abnormal voltage of the single storage battery;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the voltage of the single storage battery is within a preset third numerical value range, and if not, outputting the abnormal voltage of the single storage battery to a distribution network main station of the distribution network automation system.
5. The system of claim 1, wherein the communication data comprises: the second alarm signal is communication interruption;
when judging that the communication data corresponding to the communication manager is abnormal, sending a second alarm signal to the distribution network main station specifically comprises:
and judging whether the uplink and downlink communication signals corresponding to the communication management machine are communication interruption signals, and if so, outputting communication interruption to the distribution network main station.
6. The system of claim 1, wherein the communication data comprises: the communication manager transmits data to the encryption module, and the second alarm signal is that the communication manager is abnormal;
when judging that the communication data corresponding to the communication manager is abnormal, sending a second alarm signal to the distribution network main station, specifically comprising:
and judging whether the transmission data between the communication manager and the encryption module is abnormal or not, and if so, outputting the abnormal communication manager to the distribution network main station.
7. The system according to claim 1, wherein the communication manager is configured to collect terminal data of a distribution automation terminal in the distribution automation system; and the network distribution master station is also used for sending the terminal data or the communication data to the distribution network master station through a preset communication address and the encryption module.
8. A method for fault discrimination in a distribution network automation system, applied to the operation of the fault discrimination system in the distribution network automation system according to any one of claims 1 to 7, comprising:
the method comprises the steps that a direct current monitoring module obtains direct current data corresponding to a direct current screen of the distribution network automation system;
when the fault judgment module judges that the direct current data are abnormal, a first alarm signal is sent to a distribution network main station of the distribution network automation system;
the fault judgment module is used for sending a second alarm signal to the distribution network main station when judging that the communication data corresponding to the communication management machine of the distribution network automation system is abnormal;
and the fault judgment module is used for outputting a third alarm signal when judging that the encrypted data corresponding to the encryption module of the distribution network automation system is abnormal.
9. The method according to claim 8, wherein the dc data includes: the first alarm signal is that the AC input voltage of the DC screen is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the AC input voltage of the DC screen is within a preset first numerical range, and if not, outputting the abnormal AC input voltage of the DC screen to a distribution network main station of the distribution network automation system.
10. The method according to claim 8, wherein the dc data includes: the first alarm signal is that the output voltage of the rectifier is abnormal;
when judging that the direct current data are abnormal, sending a first alarm signal to a distribution network main station of the distribution network automation system, specifically comprising:
and judging whether the output voltage of the rectifier is within a preset second value range, if not, outputting the abnormal output voltage of the rectifier to a distribution network main station of the distribution network automation system.
CN202210752752.8A 2022-06-29 2022-06-29 Fault discrimination system of distribution network automation system and operation method thereof Pending CN115021407A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115712069A (en) * 2022-12-02 2023-02-24 深圳市泰昂能源科技股份有限公司 Battery management system for distribution network power supply and intelligent distribution network power supply module
CN116186744A (en) * 2023-04-24 2023-05-30 电子科技大学成都学院 Computer data transmission system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115712069A (en) * 2022-12-02 2023-02-24 深圳市泰昂能源科技股份有限公司 Battery management system for distribution network power supply and intelligent distribution network power supply module
CN115712069B (en) * 2022-12-02 2024-02-23 深圳市泰昂能源科技股份有限公司 Battery management system for distribution network power supply and intelligent distribution network power supply module
CN116186744A (en) * 2023-04-24 2023-05-30 电子科技大学成都学院 Computer data transmission system and method

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