CN114123484A - Intelligent substation secondary equipment comprehensive fault diagnosis instrument and fault diagnosis method - Google Patents
Intelligent substation secondary equipment comprehensive fault diagnosis instrument and fault diagnosis method Download PDFInfo
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- CN114123484A CN114123484A CN202111170417.9A CN202111170417A CN114123484A CN 114123484 A CN114123484 A CN 114123484A CN 202111170417 A CN202111170417 A CN 202111170417A CN 114123484 A CN114123484 A CN 114123484A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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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
- H02J13/00006—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
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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
- H02J13/00006—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
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S40/00—Systems 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
- Y04S40/12—Systems 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
- Y04S40/124—Systems 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 using wired telecommunication networks or data transmission busses
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Abstract
The invention discloses a comprehensive fault diagnosis instrument and a fault diagnosis method for secondary equipment of an intelligent substation, belonging to the technical field of intelligent substations, wherein the fault diagnosis instrument is in a portable case structure and comprises a hardware system, wherein the hardware system comprises an upper computer module for realizing man-machine interaction, a signal acquisition module for acquiring signals of the secondary equipment and a power supply module for supplying power to the system; the fault diagnosis method comprises the steps of importing an SCD file and establishing an operation model; collecting process layer equipment data; collecting data of a switch; and carrying out fault diagnosis and outputting. The method and the system aim at positioning the link of the normal connection section of the physical link by diagnosing the hardware module fault and the software fault of the secondary equipment of the intelligent substation, so that field operation and maintenance personnel can timely judge the fault of the operation state of the whole secondary equipment and the physical link.
Description
Technical Field
The invention relates to the technical field of intelligent substations, in particular to a comprehensive fault diagnosis instrument and a fault diagnosis method for secondary equipment of an intelligent substation.
Background
The intelligent substation comprises an intelligent primary device, an electronic transformer and an optical cable to connect and replace a cable to form a process layer network, the interconnection between devices is not simple and transparent due to the mode of shared network communication, the original physical connection is changed into virtual terminal connection, and the difficulty is very high when a field operation and maintenance maintainer searches for a fault, or even the situation that the fault is left out is avoided. When the transformer substation breaks down, the fault of the transformer substation is diagnosed in time, and fault removal is an indispensable part for maintaining stable and safe operation of the transformer substation by finding out the fault reason.
The SV/GOOSE messages are transmitted by process layer equipment of the intelligent substation through an optical fiber network, the interval layer and station control layer equipment are communicated through IEC61850 MMS messages, and the fault diagnosis instrument of the secondary equipment of the intelligent substation diagnoses and analyzes faults of the secondary equipment and physical links by collecting the transmission messages in real time without damage and combining a related limiting algorithm.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the comprehensive fault diagnosis instrument and the fault diagnosis method for the secondary equipment of the intelligent substation, which are convenient for field operation and maintenance personnel to quickly diagnose fault points on the operation state and the physical link of the whole secondary equipment and timely eliminate faults.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a comprehensive fault diagnosis instrument for secondary equipment of an intelligent substation is of a portable case structure and comprises a hardware system, wherein the hardware system comprises an upper computer module, a signal acquisition module for acquiring signals of the secondary equipment and a power supply module for supplying power to the system;
the signal acquisition module comprises a network data acquisition board and a back board communication interface board for connecting the network data acquisition board to the upper computer comprehensive processing board, and the network data acquisition board acquires communication messages between secondary equipment in a lossless and real-time timestamp-attached mode and transmits the communication messages to the upper computer module;
the upper computer module comprises an upper computer comprehensive processing board, a liquid crystal screen driving board, a keyboard board and a trackball board, wherein the liquid crystal screen driving board, the keyboard board and the trackball board are connected with the upper computer comprehensive processing board, the upper computer comprehensive processing board carries out fault diagnosis and stores abnormal messages in real time, and the liquid crystal screen driving board drives a display screen to display working conditions of secondary equipment and link connection of the secondary equipment in real time, so that a fault diagnosis result is shown.
The technical scheme of the invention is further improved as follows: the network data acquisition board comprises a high-performance FPGA chip, an Ethernet interface chip for connecting the communication plug-in and the high-performance FPGA chip, an external cache area connected with the high-performance FPGA chip, a plurality of PHY chips connected with the high-performance FPGA chip, a plurality of optical network ports connected with the PHY chips and a plurality of optical serial ports connected with the high-performance FPGA chip.
The technical scheme of the invention is further improved as follows: the FPGA logic circuit design of the high-performance FPGA chip adopts a hardware design language verilog HDL, accurate timestamps are given to network data packets shared by the transformer substation, high-precision lossless real-time acquisition of SV (space velocity) and GOOSE (generic object oriented substation event) data and MMS (multimedia messaging service) communication messages of station control layer equipment is realized, the acquired real-time data is cached to an external cache region, and the real-time data is transmitted to an upper computer comprehensive processing board for processing according to communication rules among internal board cards.
The technical scheme of the invention is further improved as follows: the optical serial port is used for IRIG-B code hardware time synchronization circuit design.
The technical scheme of the invention is further improved as follows: the upper computer comprehensive processing board comprises a CPU core module and a memory which are installed in a plug-in mode.
The technical scheme of the invention is further improved as follows: the peripheral interface of the CPU core module comprises LVDS, HDMI, SATA, DDR, PCIE, an Ethernet port, USB, I2C, a serial port, an extended I/O interface and a power interface, and the first plug-in is connected to the CPU core module through the Ethernet port, USB, I2C, the serial port and the extended I/O interface; the plug-in unit II is connected to the CPU core module through LVDS, HDMI, SATA, DDR and PCIE; the CPU core module is buckled on the upper computer comprehensive processing board in a plug-in mode;
the technical scheme of the invention is further improved as follows: the memory circuit employs a standard 52pin mini sata header.
The technical scheme of the invention is further improved as follows: the working process of the upper computer comprehensive processing board specifically comprises the following steps:
s1, the upper computer comprehensive processing board receives the data message collected by the network data collecting board and carries out fault diagnosis and analysis;
s2, the upper computer comprehensive processing board completes the function of hardware B code time synchronization;
s3, the upper computer comprehensive processing board receives a human-computer interaction command of the keyboard board and the trackball board;
and S4, the upper computer comprehensive processing board drives the liquid crystal screen driving board to display the diagnosis condition, and a plurality of electric Ethernet port communication, RS232 serial port communication and RS485 communication are completed.
The technical scheme of the invention is further improved as follows: the case structure comprises a front panel, a left panel, a right panel, an upper panel and a lower panel; the front panel is provided with a mounting position of a display screen of a liquid crystal screen driving board, a mounting position of a keyboard board and a mounting position of a trackball board; the left panel is provided with a hardware interface position of the intelligent substation secondary equipment comprehensive fault diagnosis instrument;
when the case structure is assembled, the upper computer comprehensive processing board and the network data acquisition board are respectively inserted on the backboard communication interface board in a plug-in mode, and the independent components are assembled according to the sequence of the liquid crystal screen driving board display screen, the keyboard board, the trackball board and the hardware interface.
A fault diagnosis method of an intelligent substation secondary equipment comprehensive fault diagnosis instrument comprises the following steps:
and 4, after carrying out comprehensive fault analysis on the state information by the intelligent substation secondary equipment comprehensive fault diagnosis instrument, comparing the state information with the SCD file, verifying the consistency of the SCD data set configuration and the process layer communication link, and carrying out fault diagnosis and outputting.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. by adopting the portable case, the large-size screen and the mobile design, the invention is convenient for operation and maintenance personnel to carry, can be repeatedly used for fault diagnosis and analysis of different transformer substations, and saves the investment cost of transformer substation hardware and the cost of the operation and maintenance personnel.
2. The invention adopts the general interface design of the secondary equipment in the transformer substation, and can be directly connected with the related equipment in the transformer substation, thereby reducing the wiring complexity and workload of workers.
3. The method and the system monitor potential faults in daily operation and maintenance, and remind workers to make corresponding solutions in time, so that faults are avoided.
4. The invention realizes the direct application of the module board card on other products by adopting the modularized and plug-in design method for the CPU circuit of the core part of the hardware circuit.
5. According to the invention, the SCD file and the manual configuration key parameters of the transformer substation are imported and stored, the network data message of the transformer substation is automatically acquired, and relevant fault diagnosis and analysis are carried out, so that the operation difficulty of workers is reduced, and the workers can position fault points and remove faults as soon as possible.
6. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation can actively collect the self-checking state information of the secondary equipment and automatically judge whether the hardware of the secondary equipment has problems or not according to the collected information.
7. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation can comprehensively diagnose the software problems of the secondary equipment according to the collected network data messages (SV/GOOSE/MMS); whether the physical link connection is normal can be accurately judged, and an abnormal position can be marked; the state, the flow and the like of each port of the switch can be collected, whether the switch and each port are normal or not is judged according to a certain strategy, and abnormal data is extracted and stored in the database.
8. According to the invention, all judgment results are visually reflected on the graphical interface, and workers are reminded in a striking manner, so that the efficiency and quality of fault removal and defect elimination are improved, and the time for fault removal and defect elimination is shortened.
Drawings
FIG. 1 is a hardware overview block diagram of the present invention;
FIG. 2 is a schematic block diagram of the CPU core module circuit design of the present invention;
FIG. 3 is a schematic diagram of the memory circuit design of the present invention;
FIG. 4 is a schematic diagram of the custom keypad circuit design of the present invention;
FIG. 5 is a schematic block diagram of the circuit design of the network data acquisition card of the present invention;
FIG. 6 is a schematic diagram of IRIG-B code hardware vs. time circuit design according to the present invention;
FIG. 7 is a schematic diagram of the backplane communications interface circuit design of the present invention;
FIG. 8 is a dimensional view of the housing structure of the present invention;
FIG. 9 is a schematic diagram of a secondary equipment comprehensive diagnostic apparatus for diagnosing faults according to the present invention;
the system comprises an AC-DC power supply conversion board 1, an ATX power supply board 2, a backboard communication interface board 3, a backboard communication interface board 4, a network data acquisition board 4-1, a high-performance FPGA chip 4-2, an Ethernet interface chip 4-3, an external buffer area 4-4, a PHY chip 4-5, an optical network port 4-6, an optical serial port 5, an upper computer comprehensive processing board 6, a liquid crystal screen driving board 7, a keyboard board 8, a trackball board A1, the installation position of a display screen of the liquid crystal screen driving board, the installation position of A2 and the keyboard board A3, the installation position of the trackball board A4 and a hardware interface position.
Detailed Description
The invention is described in further detail below with reference to the following figures and examples:
as shown in fig. 1, a hardware system of the comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation comprises an upper computer module for realizing human-computer interaction, a signal acquisition module for acquiring signals of the secondary equipment, and a power supply module for supplying power to the system.
The upper computer module comprises an upper computer comprehensive processing board 5, a liquid crystal screen driving board 6 communicated with the upper computer comprehensive processing board 5, a keyboard board 7 connected with the input end of the upper computer comprehensive processing board 5 and a trackball board 8.
The upper computer comprehensive processing board 5 comprises a CPU core module and a memory which are installed in a plug-in mode.
As shown in fig. 2, the peripheral interface of the CPU core module includes LVDS, HDMI, SATA, DDR, PCIE, ethernet port, USB, I2C, serial port, extended I/O interface, and power interface, and the first plug-in is connected to the CPU core module 5-1 through the ethernet port, USB, I2C, serial port, extended I/O interface; the plug-in unit II is connected to the CPU core module 5-1 through LVDS, HDMI, SATA, DDR and PCIE; the CPU core module 5-1 is buckled on the upper computer comprehensive processing board 5 in a plug-in mode and serves as the core of the whole fault diagnosis instrument.
The form of the independent board card module plug-in can be repeatedly used for other product designs.
As shown in fig. 3, the memory circuit adopts a standard mini SATA base with 52 pins, and is suitable for various manufacturers.
As shown in fig. 4, the keyboard board 7 includes a matrix keyboard circuit, which reduces the number of IO ports of the CPU core module.
The signal acquisition module comprises a network data acquisition board 4 and a backboard communication interface board 3 which connects the network data acquisition board 4 to an upper computer comprehensive processing board 5.
As shown in fig. 5, the network data acquisition board 4 specifically includes a high-performance FPGA chip 4-1, an ethernet interface chip 4-2 connecting the communication plug-in and the high-performance FPGA chip 4-1, an external buffer area 4-3 connected to the high-performance FPGA chip 4-1, 8 PHY chips 4-4 connected to the high-performance FPGA chip 4-1, 8 optical network ports 4-5 connected to the PHY chips 4-4, and 2 optical serial ports 4-6 connected to the high-performance FPGA chip 4-1; meanwhile, the communication plug-in supplies power for the circuits of the high-performance FPGA chip 4-1, the PHY chip 4-4 and the optical network interface 4-5.
Wherein, 8 optical network ports 4-5 include 6 100M optical network ports and 2 100M/1000M optical network ports.
The FPGA logic circuit design adopts a hardware design language verilog HDL to realize logic hardware circuit programming on a high-performance FPGA chip 4-1, so that accurate time stamps are given to network data packets shared by a transformer substation, high-precision lossless real-time acquisition of SV (space velocity) and GOOSE (generic object oriented substation event) data and MMS (multimedia messaging service) communication messages of a process layer and a station control layer is realized, the acquired real-time data is cached to an external cache region 4-3, and the acquired real-time data is uploaded to an upper computer comprehensive processing board 5 to be processed according to communication rules among internal board cards.
As shown in FIG. 6, the optical serial port 4-6 is used for IRIG-B code hardware time synchronization circuit design.
As shown in fig. 7, the communication interface of the backplane communication interface board 3 is used to connect the ATX power board, the network data acquisition board, and the upper computer integrated processing board.
The power supply module comprises an ATX power supply board 2 connected with the backboard communication interface board 3 and an AC-DC power supply conversion board 1 connected with the ATX power supply board 2.
The AC-DC power conversion board 1 converts an input AC voltage 220V into a DC 12V, which is input to the ATX power board 2.
The ATX power supply board 2 converts the direct current 12V output by the AC-DC power conversion board 1 into direct currents 5V, 3.3V and 12V required by other board cards, is connected to the backboard communication interface board, and provides required power for the other board cards by taking the backboard communication interface board as a bridge, wherein the power supply voltage of the keyboard board is 5V, the power supply voltage of the trackball is 5V, and the power supply voltage of the liquid crystal screen driving board 6 is 3.3V.
In this embodiment, the AC-DC power conversion board 1 is selected from LRS-120-12 manufactured by shinkawa tetragonal manufacturer, the ATX power board 2 is selected from DC-DCOW12VDC, the board plug-in unit i and the plug-in unit ii are two plug-in unit base terminals, and the optical network interface 4-5 is selected from HFBR-2412TZ with height of anhua.
As shown in fig. 8, the intelligent substation secondary equipment comprehensive fault diagnosis device is configured as a portable case structure, and includes a front panel, a left panel, a right panel, an upper panel and a lower panel, specifically, wherein the length L1=322.41mm of the upper panel, the width L2=125mm of the upper panel, and the height L3=298mm of the front panel. The front panel is provided with a mounting position A1 of a display screen of a liquid crystal panel driving board, a mounting position A2 of a keyboard board and a mounting position A3 of a trackball board. And a hardware interface position A4 of the intelligent substation secondary equipment comprehensive fault diagnosis instrument is arranged on the left panel, and the interfaces at least comprise an electric network port, a USB (universal serial bus), an optical network port, an IRIG-B code interface, an HDMI (high-definition multimedia interface) and the like.
When the case structure is assembled, the upper computer comprehensive processing board 5 and the network data acquisition board 4 are respectively inserted into the backboard communication interface board 3 in a plug-in mode, and the independent components are assembled according to the installation sequence A1-A4, so that the integral assembly of the intelligent substation secondary equipment comprehensive fault diagnosis instrument is completed.
The using method comprises the following steps:
as shown in fig. 9, the fault diagnosis method for the intelligent substation secondary equipment comprehensive fault diagnosis instrument to diagnose the fault includes the following steps:
and 2, in the intelligent substation, networking the process layer equipment through an optical fiber network, transmitting SV/GOOSE messages, and acquiring the SV/GOOSE messages by the intelligent substation secondary equipment comprehensive fault diagnosis instrument through acquiring process layer equipment data. Meanwhile, the process layer equipment uploads communication state information to the spacer layer equipment, the spacer layer equipment uploads the current running condition to the background monitoring host through the MMS network, and the diagnostic instrument acquires the states of secondary equipment and a secondary link in the station by acquiring network messages of the station control layer;
and 4, carrying out comprehensive fault analysis on the acquired SV/GOOSE abnormal messages, acquired state information of the secondary equipment and the secondary link and the running condition of the in-station switch by the intelligent substation secondary equipment comprehensive fault diagnosis instrument, comparing the obtained SV/GOOSE abnormal messages with the SCD file, verifying the consistency of the SCD data set configuration and the process layer communication link, carrying out fault diagnosis, and outputting a diagnosis result in a graphical alarm mode.
In the fault diagnosis process of the comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation, the specific working process of the network data acquisition board 4 is as follows:
the network data acquisition board 4 completes lossless real-time acquisition of a plurality of optical network port data messages, attaches accurate timestamps to the acquired data messages, caches the data messages in a local cache pool, and sends the data messages to the upper computer comprehensive processing board 5 according to internal communication rules;
the working process of the upper computer comprehensive processing board 5 specifically comprises the following steps:
s1, the upper computer comprehensive processing board 5 receives the data message collected by the network data collecting board 4 and carries out fault diagnosis and analysis;
s2, the upper computer comprehensive processing board 5 completes the function of hardware B code time synchronization;
s3, the upper computer comprehensive processing board 5 receives the human-computer interaction commands of the keyboard board 7 and the trackball board 8;
s4, the upper computer comprehensive processing board 5 drives the liquid crystal screen driving board 6 to display the diagnosis condition, and a plurality of electric Ethernet port communication, RS232 serial port communication and RS485 communication are completed.
In conclusion, the comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation can actively collect the self-checking state information of the secondary equipment and automatically judge whether the hardware of the secondary equipment has problems according to the collected information; meanwhile, according to the collected network data messages (SV/GOOSE/MMS), the software problem existing in the secondary equipment is comprehensively diagnosed; whether the physical link connection is normal can be accurately judged, and an abnormal position can be marked; the state, the flow and the like of each port of the switch can be collected, whether the switch and each port are normal or not is judged according to a certain strategy, abnormal data is extracted and stored in a database; all judgment results are visually reflected on the graphical interface, and workers are reminded in a striking mode, so that the efficiency and the quality of fault removal and defect elimination are improved, and the time of fault removal and defect elimination is shortened.
Claims (10)
1. The utility model provides an intelligent substation secondary equipment synthesizes fault diagnosis appearance which characterized in that: the fault diagnosis instrument is of a portable case structure and comprises a hardware system, wherein the hardware system comprises an upper computer module, a signal acquisition module for acquiring signals of secondary equipment and a power supply module for supplying power to the system;
the signal acquisition module comprises a network data acquisition board (4) and a backboard communication interface board (3) for connecting the network data acquisition board (4) to an upper computer comprehensive processing board (5), and the network data acquisition board (4) acquires communication messages between secondary equipment in a lossless and real-time timestamp-attached mode and transmits the communication messages to the upper computer module;
the upper computer module comprises an upper computer comprehensive processing board (5), a liquid crystal screen driving board (6) connected with the upper computer comprehensive processing board (5), a keyboard board (7) and a trackball board (8), the upper computer comprehensive processing board (5) conducts fault diagnosis and stores abnormal messages in real time, and the liquid crystal screen driving board (6) drives a display screen to display the working condition of secondary equipment and link connection thereof in real time, so that a fault diagnosis result is shown.
2. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 1, characterized in that: the network data acquisition board (4) comprises a high-performance FPGA chip (4-1), an Ethernet interface chip (4-2) for connecting the communication plug-in and the high-performance FPGA chip (4-1), an external cache area (4-3) connected with the high-performance FPGA chip (4-1), a plurality of PHY chips (4-4) connected with the high-performance FPGA chip (4-1), a plurality of optical network ports (4-5) connected with the PHY chips (4-4) and a plurality of optical serial ports (4-6) connected with the high-performance FPGA chip (4-1).
3. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 2, characterized in that: the FPGA logic circuit design of the high-performance FPGA chip (4-1) adopts a hardware design language verilog HDL, accurate timestamps are given to network data packets shared by the transformer substation, high-precision lossless real-time acquisition of SV (space velocity) and GOOSE (generic object oriented substation event) data and MMS (multimedia messaging service) communication messages of station control layer equipment is realized, acquired real-time data are cached to an external cache region (4-3), and are transmitted to an upper computer comprehensive processing board (5) for processing according to communication rules among internal board cards.
4. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 2, characterized in that: and the optical serial port (4-6) is used for IRIG-B code hardware time synchronization circuit design.
5. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 1, characterized in that: the upper computer comprehensive processing board (5) comprises a CPU core module and a memory which are installed in a plug-in mode.
6. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 5, characterized in that: the peripheral interface of the CPU core module comprises LVDS, HDMI, SATA, DDR, PCIE, an Ethernet port, USB, I2C, a serial port, an extended I/O interface and a power interface, and the first plug-in is connected to the CPU core module through the Ethernet port, USB, I2C, the serial port and the extended I/O interface; the plug-in unit II is connected to the CPU core module through LVDS, HDMI, SATA, DDR and PCIE; the CPU core module is buckled on the upper computer comprehensive processing board (5) in a plug-in mode.
7. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 5, characterized in that: the memory circuit employs a standard 52pin mini sata header.
8. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 5, characterized in that: the working process of the upper computer comprehensive processing board (5) specifically comprises the following steps:
s1, the upper computer comprehensive processing board (5) receives the data message collected by the network data collecting board (4) and carries out fault diagnosis and analysis;
s2, the upper computer comprehensive processing board (5) completes the function of hardware B code time synchronization;
s3, the upper computer comprehensive processing board (5) receives the human-computer interaction commands of the keyboard board (7) and the trackball board (8);
s4, the upper computer comprehensive processing board (5) drives the liquid crystal screen driving board (6) to display the diagnosis condition, and a plurality of electric Ethernet port communication, RS232 serial port communication and RS485 communication are completed.
9. The comprehensive fault diagnosis instrument for the secondary equipment of the intelligent substation according to claim 1, characterized in that: the case structure comprises a front panel, a left panel, a right panel, an upper panel and a lower panel; the front panel is provided with a mounting position (A1) of a display screen of a liquid crystal screen driving board, a mounting position (A2) of a keyboard board and a mounting position (A3) of a trackball board; the left panel is provided with a hardware interface position (A4) of the intelligent substation secondary equipment comprehensive fault diagnosis instrument;
when the case structure is assembled, the upper computer comprehensive processing board (5) and the network data acquisition board (4) are respectively inserted into the backboard communication interface board (3) in a plug-in mode, and the independent components are assembled according to the sequence of the liquid crystal screen driving board display screen, the keyboard board (7), the trackball board (8) and the hardware interface.
10. A fault diagnosis method using the intelligent substation secondary equipment comprehensive fault diagnosis instrument according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
step 1, an intelligent substation secondary equipment comprehensive fault diagnosis instrument establishes an overall operation model of secondary equipment of a whole substation by importing an SCD file of an intelligent substation;
step 2, acquiring process layer equipment data by the intelligent substation secondary equipment comprehensive fault diagnosis instrument, acquiring SV/GOOSE messages, and acquiring states of secondary equipment and a secondary link in the substation;
step 3, collecting the operation working condition of the switch in the whole substation by the intelligent substation secondary equipment comprehensive fault diagnosis instrument by adopting an SNMP message to acquire the whole state of the switch;
and 4, after carrying out comprehensive fault analysis on the state information by the intelligent substation secondary equipment comprehensive fault diagnosis instrument, comparing the state information with the SCD file, verifying the consistency of the SCD data set configuration and the process layer communication link, and carrying out fault diagnosis and outputting.
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