CN110086252B - Polymorphic feeder automation field test device - Google Patents
Polymorphic feeder automation field test device Download PDFInfo
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- CN110086252B CN110086252B CN201910264288.6A CN201910264288A CN110086252B CN 110086252 B CN110086252 B CN 110086252B CN 201910264288 A CN201910264288 A CN 201910264288A CN 110086252 B CN110086252 B CN 110086252B
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- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 238000004891 communication Methods 0.000 claims abstract description 33
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 10
- 238000010586 diagram Methods 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims description 9
- 238000004088 simulation Methods 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
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- 239000003086 colorant Substances 0.000 claims 1
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- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- H02J13/0006—
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- H02J13/0062—
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- H02J13/0075—
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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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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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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- 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
- Y04S40/126—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 wireless data transmission
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- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A multi-state feeder line automation field test device comprises a state indicator lamp, a man-machine interaction interface, a power management module, a CPU system, an analog output module, a switch state input module, a control output acquisition module, a communication module, a time synchronization module and a device shell for accommodating the above components. The communication module is connected with the satellite antenna through the time synchronization module; the communication module is provided with a SIM card, a USB port, an Ethernet port and a 232/485 serial port. The man-machine interaction interface comprises a liquid crystal touch screen, wherein the liquid crystal touch screen comprises system operation, feeder automation type selection, a typical wiring diagram, test scheme selection, feeder automation parameter input interface and power supply network selection. According to the invention, a power supply network structure, feeder automation types, input feeder automation related parameters, fault point positions and test device placement positions are selected through the device, and a test sequence and a scheme are automatically generated; the invention is suitable for any feeder automation field test requirement.
Description
Technical Field
The invention relates to a polymorphic feeder line automation field test device, and belongs to the technical field of distribution automation.
Background
The feeder automation is to monitor the running condition of the distribution network by using an automation device or system, discover the fault of the distribution network in time, and perform fault location, isolation and recovery to supply power to the non-fault area. According to the power supply reliability requirements, communication modes, master station coordination and other forms, feeder automation technology is divided into centralized type and in-situ type, and in-situ type feeder automation comprises in-situ recloser type and intelligent distributed type. The in-situ recloser type can be divided into a voltage time type, a voltage current time type and a self-adaptive comprehensive type according to different criteria; the intelligent distribution type can be divided into quick-action type and slow-action type.
The feeder automation can realize fault handling by adopting centralized and local modes, the fault handling modes are reasonably selected according to the power supply reliability requirements and by combining the conditions of a grid structure of a power distribution network, the current situation of primary equipment, communication basic conditions and the like, and a main station and a terminal are reasonably configured.
The reasonable feeder automation technology is the primary problem of current distribution automation construction, whether the established feeder automation technical indexes meet the design requirements is further verified, at present, the feeder automation function testing devices capable of simultaneously meeting the concentrated type, voltage time type, voltage current time type, intelligent distributed type, fault positioning type and the like are lacking, wiring is complicated, and development of feeder automation testing work in basic operation and maintenance units is not facilitated. Therefore, it is necessary to provide a polymorphic feeder automation testing device with simple operation and wide application, which can simply select the operation such as the net rack to be tested, the feeder automation type, the inherent testing parameters, etc. on site, so as to quickly and automatically generate the test sequence and the scheme for automatically generating the test, archive and evaluate the test result, and improve the practical level of the distribution automation.
Disclosure of Invention
The invention aims to realize on-site testing of functions of different feeder automation types such as centralized type, voltage time type, voltage current time type, intelligent distributed type, fault positioning type and the like, reduce testing preparation time, matched equipment and wiring error probability, and rapidly and accurately develop the on-site testing of the feeder automation, and provides a polymorphic feeder automation on-site testing device.
The technical scheme of the invention is that the multi-state feeder automation field test device comprises a status indicator lamp, a man-machine interaction interface, a power management module, a CPU system, an analog output module, a switch status input module, a control output acquisition module, a communication module, a time synchronization module and a device shell for accommodating the components; the CPU system is respectively connected with the analog quantity output module, the switch state input module, the control output acquisition module, the state indicator lamp, the man-machine interaction interface and the power management module; the communication module is interconnected with the man-machine interaction interface; the communication module is connected with the satellite antenna through the time synchronization module; the communication module is provided with a SIM card, a USB port, an Ethernet port and a 232/485 serial port.
The state indicator lamp comprises an alternating current power supply input indicator lamp, a battery charging indicator lamp, a battery undervoltage indicator lamp, an operation state indicator lamp, a state output indicator lamp, a communication lamp, a satellite synchronous lamp, a switch position indicator lamp and a switch control state indicator lamp; the status indicator lamp is arranged on the right side of the man-machine interaction interface on the front side of the device.
The man-machine interaction interface comprises a liquid crystal touch screen, a 2-path Ethernet port, two paths of RS232 serial interfaces and a 2-path USB interface; the liquid crystal touch screen comprises system operation, feeder automation type selection, a typical wiring diagram, test scheme selection, a feeder automation parameter input interface and power supply network selection.
The device automatically generates a test sequence and a scheme by selecting a power supply network structure, an automatic feeder type, input feeder automation related parameters, fault point positions and test device placement positions in the device; then, receiving simulation test master stations or satellite pairs through a built-in GPS/Beidou satellite module in the time synchronization module, and ensuring that output time of a plurality of multi-state test devices related to the feeder automation test system is kept synchronous; the CPU system controls analog output, switch state input, alternating current and standby power supply switching, so that automatic generation of a test sequence is realized; and finally, comprehensively evaluating the accuracy of the feeder automation correct action through the information such as the switch action condition, the opening and closing position and the like fed back by the testing device, and generating an evaluation report.
The feeder automation type comprises centralized type, voltage time type, voltage current time type, self-adaptive comprehensive type, intelligent distributed type, fault positioning type and custom type 7;
the feeder automation parameter input interface comprises a CT transformation ratio, a PT transformation ratio, an X time fixed value, a Y time fixed value, an overcurrent I section fixed value (secondary value) and delay time, an overcurrent II section fixed value (secondary value) and delay time, an overcurrent III section fixed value (secondary value) and delay time, reclosing times and interval time limit and a switch attribute;
the power supply network selection comprises single radiation, single connection and multiple connection, wherein the single radiation network is mainly divided into two sections and multiple branches, three sections and multiple branches, four sections and multiple branches and five sections and multiple branches according to the number of the section switches; the single-link is mainly divided into two sections and multiple branches, three sections and multiple branches, four sections and multiple branches and five sections and multiple branches according to the number of the section switches; the multi-connection is mainly divided into two sections and branches, three sections and branches, four sections and branches and five sections and branches according to the number of the section switches;
the switch attribute comprises a breaker and a load switch, and is divided into sections, contacts, branches and boundaries according to the switch action.
The CPU system is an operating system for man-machine interaction interface menu and communication processing, and is used for switching value input, switching value output and system monitoring, the control task adopts an embedded operating system, and a plurality of systems are independently and parallelly processed in a cooperative mode.
The time synchronization module is a built-in GPS/Beidou satellite module, receives the simulation test master station or satellite time synchronization and synchronously outputs a synchronization signal.
The analog output module comprises alternating voltage output, alternating current output and direct current output; wherein the amplitude, phase and frequency of the voltage and current are adjustable; the voltage and the current meet the phase current and phase current output requirements, and output ports are distinguished according to the phases of A (yellow), B (green), C (red), zero sequence (blue) and N (black); the voltage and current output precision meets the requirement of 0.05%, meets the requirement of conventional electromagnetic or secondary fusion small signal precision output, and the direct current voltage can output 5V, 12V, 24V, 48V and 220V.
The switch state input module uses optical coupling output to simulate the split and combination signals of the circuit breaker, the simulation quantity is customized according to the field requirement, and the time error between any two paths of output is not more than 1ms.
The control output acquisition module responds by following a remote control instruction, automatically detects and adapts to whether a remote control opening and remote control closing loop has active nodes, and provides a direct-current voltage 24V power supply or a direct-current voltage 48V power supply if no passive node exists, so that the state of misoperation, refusal operation and slow operation of the switch can be set; false operation can be realized by setting an error control opening indication, refusing operation can be realized by setting a short-circuit closing loop, and slow operation can be realized by setting a switch delay time.
The communication module provides a wireless communication SIM port, supports 4G, 3G and 2G, can be automatically switched according to the strength of an on-site signal, and synchronously triggers and outputs a test signal through GPRS wireless networking.
The working principle of the invention is as follows, the invention automatically generates a test sequence and a scheme by selecting a power supply network structure, an automatic feeder type, input feeder automation related parameters, fault point positions and test device placement positions in the device; then, receiving simulation test master stations or satellite pairs through a built-in GPS/Beidou satellite module in the time synchronization module, and ensuring that output time of a plurality of multi-state test devices related to the feeder automation test system is kept synchronous; the CPU system controls analog output, switch state input, alternating current and standby power supply switching, so that automatic generation of a test sequence is realized; and finally, comprehensively evaluating the accuracy of the feeder automation correct action through the information such as the switch action condition, the opening and closing position and the like fed back by the testing device, and generating an evaluation report.
The invention has the beneficial effects that the power supply network structure, the feeder automation class, the input feeder automation related parameters, the fault point position and the test device placement position are selected through the device, the test sequence and the scheme are automatically generated, meanwhile, the test wiring diagram is displayed, the test steps and the test results are automatically recorded, the test results are evaluated, and the power distribution automation practical level is greatly improved.
The invention is suitable for any feeder automation field test requirement, and has simple wiring and wide application range.
Drawings
FIG. 1 is a block diagram showing the internal structure of the device of the present invention;
FIG. 2 is a front view of the device;
FIG. 3 is a top view of the device outline;
FIG. 4 is a right side view of the device outline;
FIG. 5 is a rear view of the device profile;
in the figure, 1 is a power switch key; 2, a human-computer interaction interface; 3 is a starting key; 4 is a stop button; 5 is a status indicator lamp; 6 is a first set of remote control loop keys; 7 is a second set of remote control loop keys; 8 is a switch state input module; 9 is a control output acquisition module; 10 is 232/485 serial port; 11 is a SIM card; 12 is an Ethernet port; 13 is wireless; 14 is a clock; 15 is direct current voltage and small signal output; 16 is an alternating voltage output; 17 is an alternating current output; 18 is a device handle; 19 is a battery access port; 20 is an ac power input.
Detailed Description
The structure of the multi-state feeder line automation field test device is shown in fig. 1, and the device comprises a state indicator lamp, a man-machine interaction interface, a power management module, a CPU system, an analog output module, a switch state input module, a control output acquisition module, a communication module, a time synchronization module and a device shell for accommodating the above components; the CPU system is respectively connected with the analog quantity output module, the switch state input module, the control output acquisition module, the state indicator lamp, the man-machine interaction interface and the power management module; the communication module is interconnected with the man-machine interaction interface; the communication module is connected with the satellite antenna through the time synchronization module; the communication module is provided with a SIM card, a USB port, an Ethernet port and a 232/485 serial port.
The frontal structural arrangement of the test device housing of this embodiment is shown in fig. 2. The liquid crystal touch screen of the man-machine interaction interface 2 is arranged in the middle of the device; the upper left corner is a power switch key 1; a start key 3 and a stop key 4 are arranged at the upper right; a first group of remote control loop keys 6 and a second group of remote control loop keys 7 are arranged below the man-machine interaction interface 2; a status indicator lamp 5 is arranged below the right start button 3 and the stop button 4.
The status indicator lamp 5 comprises an alternating current power input indicator lamp, a battery charging indicator lamp, a battery undervoltage indicator lamp, an operation status indicator lamp, a status output indicator lamp, a communication lamp, a satellite synchronous lamp, a switch position indicator lamp and a switch control status indicator lamp.
The AC power input indicator light is normally on (red) to indicate that the device is powered by mains supply or a generator, and the light is off (gray) to indicate that the device is powered by a backup battery or an external battery; the battery charge indicator light is normally on (red) to indicate that the battery is in a charged state, and the light is off (gray) to indicate that the battery is full or not in a charged state; the battery under-voltage indicator lamp is always on (red) to indicate that the battery has low electric quantity and needs to be charged as soon as possible; the running state indicates that the running lamp blinks (1 second intervals) to indicate that the equipment is running normally, and the non-blinks indicate that the equipment is abnormal; the state output indicator light is normally on (red) to indicate that analog quantity and the like of the equipment are in an output state, and is normally on (green) to indicate that analog quantity and the like of the equipment are in a stop state; the communication lamp is on to represent that the communication between the background of the equipment is normal, the red color indicates that the communication is normal, and the green color indicates that the communication is not connected; the satellite sync light is normally on (red) indicating that the satellite is locked and green flashing indicates no data reception or that the satellite is unlocked. The switch position indicator lamp comprises a switch-off position lamp and a switch-on position lamp, wherein the switch-off lamp is normally on (green) to indicate that the analog circuit breaker is at a switch-on position, and the switch-on lamp is normally on (red) to indicate that the analog circuit breaker is at a switch-on position; the switch control state indicator lamp comprises a control opening lamp and a control closing lamp, wherein the control opening lamp flashes (red) to indicate that the analog circuit breaker has received a remote control opening instruction, and the closing lamp flashes (red) to indicate that the analog circuit breaker has received a remote control closing instruction.
The top surface arrangement of the test device housing of this embodiment is shown in fig. 3. The top surface is provided with a switch state input module 8, a control output acquisition module 9, a 232/485 serial port 10, a SIM card 11, an Ethernet port 12, a wireless interface 13 and a clock 14 from left to right near the front end. The middle part of the top surface is provided with an alternating current output 17, an alternating voltage output 16 and a direct voltage and small signal output from left to right.
As shown in fig. 4, the right side of the test device housing of the present embodiment is provided with a battery access port 19 and a device handle bar 18.
As shown in fig. 5, the rear side of the test device housing of the present embodiment is provided with an ac power supply input port 20.
The man-machine interaction interface in the embodiment comprises a liquid crystal touch screen and a liquid crystal touch screen, wherein the liquid crystal touch screen comprises system operation, feeder automation type selection, a typical wiring diagram, test scheme selection, feeder automation parameter input interface and power supply network selection.
Feeder automation types include centralized, voltage-time, voltage-current-time, adaptive comprehensive, intelligent distributed, fault-locating, custom 7 broad categories.
The feeder automation parameter input interface comprises a CT transformation ratio, a PT transformation ratio, an X time fixed value, a Y time fixed value, an overcurrent I section fixed value (secondary value) and delay time, an overcurrent II section fixed value (secondary value) and delay time, an overcurrent III section fixed value (secondary value) and delay time, reclosing times and interval time limit and switch attribute.
The switch attribute comprises a breaker and a load switch, and is divided into sections, contacts, branches and boundaries according to the switching action.
The power supply network selection comprises single radiation, single connection and multiple connection, wherein the single radiation network is mainly divided into two sections and multiple branches, three sections and multiple branches, four sections and multiple branches and five sections and multiple branches according to the number of the section switches; the single-link is mainly divided into two sections and multiple branches, three sections and multiple branches, four sections and multiple branches and five sections and multiple branches according to the number of the section switches; the multi-connection is mainly divided into two sections and branches, three sections and branches, four sections and branches and five sections and branches according to the number of the section switches; the network structure can be selected by user definition according to the user requirements.
The power management module in this embodiment includes an ac power supply and a backup power supply; the alternating current power supply and the backup power supply refer to that when the alternating current power supply is input into the equipment, the equipment is powered by the alternating current and charges the backup power supply; when the alternating current power supply is in power failure, the device is powered by a backup power supply, the backup power supply can support the system to run for 4 hours, and the backup power supply can be external or integrated internally.
The CPU system in the embodiment is an operating system for man-machine interface and communication processing, and is an embedded operating system for switching value input and output and system monitoring and control tasks, and a plurality of systems are independently processed in parallel and cooperatively.
The time synchronization module in the embodiment is a built-in GPS/Beidou satellite module, receives the simulation test master station or satellite pair, and synchronously outputs a synchronization signal.
The analog output module in the embodiment comprises alternating voltage output, alternating current output and direct voltage output, wherein the amplitude, phase and frequency of the voltage and the current are adjustable; the voltage and the current meet the phase current and phase current output requirements, and output ports are distinguished according to the phases of A (yellow), B (green), C (red), zero sequence (blue) and N (black). The voltage and current output precision meets the requirement of 0.05%, meets the requirement of conventional electromagnetic or secondary fusion small signal precision output, and the direct current voltage can output 5V, 12V, 24V, 48V and 220V.
The switch state input module in the embodiment uses the optical coupling output to simulate the split and combination signals of the circuit breaker, the simulation quantity is customized according to the field requirement, and the time error between any two paths of output is not more than 1ms.
The control output acquisition module in the embodiment responds by following a remote control instruction, automatically detects and adapts to whether a remote control opening and closing loop has active nodes, and provides a direct-current voltage 24V power supply or a 48V power supply if no passive node exists, so that the state of misoperation, refusal and slow operation of the switch can be set; false operation can be realized by setting an error control opening indication, refusing operation can be realized by setting a short-circuit closing loop, and slow operation can be realized by setting a switch delay time.
The communication module in the embodiment provides a wireless communication SIM port, supports 4G, 3G and 2G, can be automatically switched according to the strength of the field signal, and synchronously triggers and outputs a test signal through GPRS wireless networking.
Claims (10)
1. The multi-state feeder line automation field test device is characterized by comprising a state indicator lamp, a man-machine interaction interface, a power management module, a CPU system, an analog output module, a switch state input module, a control output acquisition module, a communication module, a time synchronization module and a device shell for accommodating the above components; the CPU system is respectively connected with the analog quantity output module, the switch state input module, the control output acquisition module, the state indicator lamp, the man-machine interaction interface and the power management module; the communication module is interconnected with the man-machine interaction interface; the communication module is connected with the satellite antenna through the time synchronization module; the communication module is provided with a SIM card, a USB port, an Ethernet port and a 232/485 serial port;
the man-machine interaction interface comprises a liquid crystal touch screen, wherein the liquid crystal touch screen comprises system operation, feeder automation type selection, a typical wiring diagram, test scheme selection, feeder automation parameter input interface and power supply network selection;
the device automatically generates a test sequence and a scheme by selecting a power supply network structure, an automatic feeder type, input feeder automation related parameters, fault point positions and test device placement positions in the device; receiving the simulation test master station or satellite pairs through a built-in GPS/Beidou satellite module in the time synchronization module, and ensuring that the output time of a plurality of polymorphic test devices related to the feeder line automatic test system is kept synchronous; the CPU system controls analog output, switch state input, alternating current and standby power supply switching, so that automatic generation of a test sequence is realized; and finally, comprehensively evaluating the accuracy of the feeder automation correct action through the switch action condition and the opening and closing position information fed back by the testing device, and generating an evaluation report.
2. The multi-state feeder automation field test device of claim 1, wherein the status indicator light comprises an ac power input indicator light, a battery charge indicator light, a battery under-voltage indicator light, an operational status indicator light, a status output indicator light, a communication light, a satellite synchronization light, a switch position indicator light, a switch control status indicator light; the status indicator lamp is arranged on the right side of the man-machine interaction interface on the front side of the device.
3. The multi-state feeder line automation field test device according to claim 1, wherein the CPU system is an operating system for man-machine interaction interface menu and communication processing, and for switching value input, output and system monitoring, the control task adopts an embedded operating system, and a plurality of systems are independently processed in parallel and cooperatively.
4. The polymorphic feeder automation field test device of claim 1, wherein the time synchronization module is a built-in GPS/beidou satellite module, receives the analog test master station or satellite pair, and synchronously outputs the synchronization signal.
5. The multi-state feeder automation field test device of claim 1, wherein the analog output module comprises an ac voltage output, an ac current output, and a dc voltage output; wherein the amplitude, phase and frequency of the voltage and current are adjustable; the voltage and the current meet the phase current and phase current output requirements, and the output ports are respectively distinguished according to the colors of yellow, green, red, blue and black; the voltage and current output precision meets the requirement of 0.05 percent, meets the requirement of the precision output of the conventional electromagnetic type or secondary fusion small signal, and the direct current voltage outputs 5V, 12V, 24V, 48V and 220V.
6. The multi-state feeder automation field test device according to claim 1, wherein the switch state input module uses optical coupling output to simulate the split and combination signals of the circuit breaker, the simulation quantity is customized according to the field requirement, and the time error between any two paths of output is not more than 1ms.
7. The multi-state feeder line automation field test device according to claim 1, wherein the control output acquisition module responds by following a remote control command, automatically detects and adapts whether a remote control opening and closing loop has an active node, and provides a direct current voltage 24V power supply or a 48V power supply if no passive node exists, and sets a switch malfunction, refusal and slow movement state; false operation is realized by setting an error control opening indication, refusing operation is realized by setting a short-circuit closing loop, and slow operation is realized by setting a switch delay time.
8. The polymorphic feeder automation field test device of claim 1, wherein the communication module provides a wireless communication SIM port supporting 4G, 3G, 2G, and is capable of switching automatically according to the field signal strength, and triggering and outputting the test signal synchronously through GPRS wireless networking.
9. The polymorphic feeder automation field test device of claim 1, wherein the feeder automation type comprises centralized, voltage time type, voltage current time type, adaptive integrated, intelligent distributed, fault location, custom 7 broad class;
the feeder automation parameter input interface comprises a CT transformation ratio, a PT transformation ratio, an X time fixed value, a Y time fixed value, an overcurrent I section fixed value and delay time, an overcurrent II section fixed value and delay time, an overcurrent III section fixed value and delay time, reclosing times, interval time limit and switch attribute;
the power supply network selection comprises single radiation, single connection and multiple connection, wherein the single radiation network is divided into two sections and multiple branches, three sections and multiple branches, four sections and multiple branches and five sections and multiple branches according to the number of the section switches; the single-link is divided into two sections and multiple branches, three sections and multiple branches, four sections and multiple branches and five sections and multiple branches according to the number of the section switches; the multi-connection is divided into two sections and branches, three sections and branches, four sections and branches and five sections and branches according to the number of the section switches.
10. A multi-state feeder automation field test device according to claim 9, wherein the switching attribute comprises circuit breakers and load switches, and is divided into segments, links, branches, and demarcations based on switching action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910264288.6A CN110086252B (en) | 2019-04-03 | 2019-04-03 | Polymorphic feeder automation field test device |
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| CN201910264288.6A CN110086252B (en) | 2019-04-03 | 2019-04-03 | Polymorphic feeder automation field test device |
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| CN110456233A (en) * | 2019-09-19 | 2019-11-15 | 广东电网有限责任公司 | A kind of voltage-time type feeder automation test equipment and its storage device |
| CN110988527A (en) * | 2019-11-25 | 2020-04-10 | 国网宁夏电力有限公司电力科学研究院 | Feeder automation testing device and using method thereof |
| CN111044815A (en) * | 2019-12-02 | 2020-04-21 | 国网浙江嘉善县供电有限公司 | On-spot detection device of multi-functional automatic distribution equipment |
| CN111123820A (en) * | 2019-12-11 | 2020-05-08 | 国网浙江嘉善县供电有限公司 | Portable distribution site automatic detection system |
| CN111308236A (en) * | 2019-12-31 | 2020-06-19 | 广州得元电力科技有限公司 | Testing system, device and method for power distribution terminal |
| CN111337790A (en) * | 2020-03-18 | 2020-06-26 | 广西电网有限责任公司电力科学研究院 | Distribution network real mirror test platform and detection method for primary and secondary fusion power distribution equipment |
| CN112540263A (en) * | 2020-11-18 | 2021-03-23 | 广西电网有限责任公司电力科学研究院 | Feeder automation logic operation and maintenance detection device and method |
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