CN110954769A - Hardware-in-loop test system and method for distribution automation feeder terminal equipment - Google Patents
Hardware-in-loop test system and method for distribution automation feeder terminal equipment Download PDFInfo
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention discloses a hardware-in-loop test system and a hardware-in-loop test method for distribution automation feeder terminal equipment, wherein the system comprises a feeder terminal equipment controller test device and a hardware-in-loop power supply device; the hardware-in-loop power supply device comprises a switch generator, a power supply side waver, a load side waver, a voltage transformer, a current transformer and an analog/digital conversion module, wherein the power supply side waver is respectively connected with the switch generator and the voltage transformer, the load side waver is respectively connected with the switch generator, the voltage transformer and the current transformer, and the analog/digital conversion module is respectively connected with the switch generator, the voltage transformer, the current transformer and a tested feeder terminal equipment controller. The invention has the advantages of adapting to different power grid test scenes of the automatic test of the feeder terminal equipment, tracking test of the power grid company on the product defects of the feeder terminal equipment and automatic test of the product quality control of a feeder terminal equipment manufacturer.
Description
Technical Field
The invention relates to a hardware-in-loop test system and method for distribution automation feeder terminal equipment, and belongs to the field of remote terminal automation test of a distribution network automation system.
Background
In a distribution network automation system, a Feeder Terminal Unit (FTU) is a distribution automation terminal installed on a pole of a distribution network feeder circuit and at a switch cabinet, etc., and having remote signaling, remote sensing, remote control, and feeder automation functions. The feeder terminal equipment of a manufacturer needs to obtain network access qualifications such as a type test certificate and the like in a national level organization; before the delivery of a bidding product for a power grid company, quality control is needed in the processes of raw material purchase, production, test, detection and the like to obtain a product qualification certificate; when the product is delivered for inspection, the gate of the relevant department of the power grid company carries out the inspection of the arrival according to the inspection outline. The detection content of the feeder line terminal equipment is divided into a basic function and a matching function in the aspect of function, and specifically divided into data acquisition of state quantity and analog quantity, a control function of switching on and off and a standby power supply, data transmission such as time correction and meter reading, a local maintenance function, a remote maintenance function and the like, other functions such as recording of various faults and event sequences and local functions, the detection content can be divided into basic function performance, protection logic, a protocol and point table, equipment safety and expansion test according to the types of test items, and the total number of the test items of each set of feeder line terminal equipment is more than 50. Therefore, the feeder terminal equipment detects service requirements such as production detection from manufacturers, arrival inspection of power grid companies, field test of power distribution networks and the like. The current state of the art of testing feeder terminal equipment is as follows: 1) it is desirable that the feeder terminal automated test system be able to sink to a first line of service, such as a production line of feeder terminal equipment, a "team" class of a power grid company, and a portable mobile test environment; 2) the testing personnel is required to have higher comprehensive quality, the testing process is complex, the time consumption is long, and the efficiency is low; 3) some test data need to be input manually, the detection result judgment needs manual intervention, and the consistency of repeated test results is difficult to ensure; 4) test data cannot be fully utilized, analyzed and mined, such as "familial" defects, "genetic" defects of feeder terminal equipment, "short board" modules of products, and the like.
In a distribution network automation system, an automated testing technology of feeder terminal equipment is divided into a distribution automation feeder terminal equipment testing system, a dynamic simulation system, a Rapid Control Prototype (RCP) simulation system, and a hardware-in-the-loop (HIL) simulation system. The distribution automation feeder terminal equipment test system comprises a device and software, wherein the device comprises an industrial personal computer, a switch, a tester, a standby power supply and the like, is divided into portable equipment and standard cabinet type equipment, and has the characteristics of strong hardware and weak software, and the equipment is seriously solidified and lacks of test flexibility. The dynamic simulation system is an off-line system simulation (such as Simulink and simcap tool box of Matlab) realized by software, but cannot obtain functional and performance test data from a physical layer. The RCP and the HIL are both based on a semi-physical simulation method, wherein the RCP is based on a virtual controller and an actual object, and the HIL is based on the actual controller and the virtual object, and the RCP and the HIL are both applied to the field of automatic testing of the power distribution network. Based on RTDS simulation test technology, for example: the system comprises a distribution network distributed test system, a distributed distribution network hardware-in-the-loop simulation system, a logic distribution terminal and a communication method of a distributed distribution automation system, a measurement method of the operation delay of a power system wide area closed loop control system, a micro-grid system stability simulation test platform, a power and communication semi-physical simulation system and a construction method. Other semi-physical simulation methods, such as: the system comprises a semi-physical simulation system [9] for testing the protection performance of a ship direct-current circuit breaker based on an RT-LAB simulation test system, a low-cost relay protection teaching experiment platform based on an ARM framework, an electric power information physical hardware-in-loop safety simulation test platform, a semi-physical simulation grid-connected detection system and method, an exchanger test system and test method based on semi-physical simulation, a test system based on hardware-in-loop equipment, a doubly-fed fan sub-synchronous resonance hardware-in-loop test system and the like.
At present, most of the fields are based on a distribution automation feeder terminal equipment test system, are limited by field physical connection of a circuit breaker, and are applied to single-item test of a feeder terminal equipment module; the RTDS or RT-LAB semi-physical simulation device and the method thereof are applied to macro application scenes of distribution network automatic tests such as a micro-grid system, a distributed distribution automation system, a power system wide-area closed-loop control system and the like; other semi-physical simulation devices and methods thereof are applied to local application scenes of automatic testing of power distribution networks such as direct-current breaker protection, switch testing systems, relay protection, power communication and logic power distribution terminals and application scenes such as testing processes of multiple testing objects.
The device has the defects that the device is based on a distribution automation feeder terminal equipment test system, is applied to the single test of a feeder terminal equipment module, and has low test efficiency; the simulation test system based on the RTDS is high in price and difficult to sink to the first line of the distribution automation feeder terminal equipment service, such as an FTU product production line, a power grid operation and maintenance 'team' and a mobile field environment thereof; other semi-physical simulation devices and methods thereof cannot completely cover all test items required by the automatic test of the feeder terminal equipment.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a hardware-in-loop test system of the distribution automation feeder terminal equipment, which has the advantages of adapting to different power grid test scenes of the automation test of the feeder terminal equipment, tracking test of the product defects of the feeder terminal equipment by a power grid company and automation test of the product quality control of a feeder terminal equipment manufacturer.
Another object of the present invention is to provide a hardware-in-loop testing method for distribution automation feeder terminal equipment.
The purpose of the invention can be achieved by adopting the following technical scheme:
a hardware-in-loop test system of distribution automation feeder terminal equipment comprises a feeder terminal equipment controller test device and a hardware-in-loop power supply device, wherein the feeder terminal equipment controller test device is respectively connected with a tested feeder terminal equipment controller and the hardware-in-loop power supply device;
the hardware-in-the-loop power supply device comprises a switch generator, a power supply side waver, a load side waver, a voltage transformer, a current transformer and an analog/digital conversion module, wherein the power supply side waver is respectively connected with the switch generator and the voltage transformer, the load side waver is respectively connected with the switch generator, the voltage transformer and the current transformer, and the analog/digital conversion module is respectively connected with the switch generator, the voltage transformer, the current transformer and a tested feeder terminal equipment controller;
the switch generator is used for simulating the function of a switch body of a circuit breaker in the tested feeder terminal equipment;
and the analog/digital conversion module is used for converting the digital signals and the analog signals of the switch generator, the voltage transformer and the current transformer into one another so as to adapt to the signals required by the tested feeder terminal equipment controller.
Furthermore, the feeder terminal equipment controller testing device comprises an industrial personal computer, an exchanger, an analog output module, an output module and a high-speed switching value input module, wherein the exchanger is respectively connected with the industrial personal computer, the analog output module, the output module, the high-speed switching value input module, a hardware-in-loop power supply device and a tested feeder terminal equipment controller;
the analog quantity output module is used for acquiring data of the telemetering data acquisition module in the tested feeder terminal equipment controller, checking whether the telemetering function in the tested feeder terminal equipment controller is qualified or not, analyzing the data into telemetering data according to message data acquired by the simulation master station, and analyzing corresponding data according to the point table;
the output quantity output module is used for acquiring data of a remote signaling data acquisition module in the tested feeder terminal equipment controller, checking whether a remote signaling function in the tested feeder terminal equipment controller is qualified or not, analyzing the data into remote signaling data according to message data acquired by the simulation master station, and analyzing corresponding data according to the point table;
the high-speed switching value input module is used for acquiring response data of the remote control node output module in the tested feeder terminal equipment controller about the tested feeder terminal equipment, checking whether a remote control function in the tested feeder terminal equipment controller is qualified or not, sending a remote control message according to the simulation master station, and checking a response index of the tested feeder terminal equipment.
Furthermore, the analog/digital conversion module is connected with the tested feeder line terminal equipment controller through a voltage transformer cable, a current transformer cable and a control C cable.
Furthermore, the switch is provided with two Ethernet interfaces, wherein one Ethernet interface is used for data communication between the feeder terminal equipment controller testing device and the feeder terminal equipment controller, and the other Ethernet interface is used for data communication between the feeder terminal equipment controller testing device and the distribution automation remote test management platform.
Further, feeder terminal equipment controller testing arrangement still includes wireless communication module, wireless communication module links to each other with the switch.
Further, the wireless communication module is provided with a wireless communication SMA interface to realize the switching of various wireless communication networks.
Furthermore, feeder terminal equipment controller testing arrangement still includes the extension module, the extension module links to each other with the switch for feeder terminal equipment controller testing arrangement's function extension.
Furthermore, the feeder terminal equipment controller testing device and the hardware-in-loop power supply device are arranged in a cabinet.
The other purpose of the invention can be achieved by adopting the following technical scheme:
a hardware-in-loop test method of distribution automation feeder terminal equipment comprises a communication protocol test and a switch generator test;
the switching generator test comprises:
in the case of a successful connection of the switching generator by the analog master station, the following operations are performed:
connecting an alternating current withstand voltage tester, if the connection is successful, performing an alternating current withstand voltage test, testing the voltage values of the whole pair of lines to the ground, the fracture and A, B, C lines to two phases and the ground, and judging whether the voltage values are consistent with expectations or not;
connecting a loop resistance tester, if the connection is successful, performing loop resistance test, testing A, B, C phase position resistance values, and judging whether the resistance values are consistent with expectations or not;
connecting an insulation resistance tester, if the connection is successful, performing insulation resistance test, testing A, B, C resistance values before and after two-phase and ground voltage resistance, and judging whether the values before and after the resistance voltage resistance are consistent;
if the judgment results of the alternating current withstand voltage test, the loop resistance test and the insulation resistance test are consistent, judging that the alternating current withstand voltage test, the loop resistance test and the insulation resistance test are qualified; and if at least one judgment result in the alternating-current withstand voltage test, the loop resistance test and the insulation resistance test is inconsistent, judging that the test is unqualified.
Further, the communication protocol test includes:
the method comprises the following steps of realizing configuration and establishing a simulation main station, and executing the following operations under the condition of successfully connecting the feeder terminal equipment to be tested:
initializing a detection flow according to the local power distribution master station, requesting a link state, and resetting a remote link if the request is successful;
sending a link command according to a link test detection flow, and if the link command is successfully sent, requesting secondary data;
requesting first-level user data according to the total calling detection flow, if the request is successful, confirming the total calling, receiving the first-level user data and processing;
requesting secondary user data according to the group call detection flow, if the request is successful, confirming the group call, receiving the secondary user data and processing;
sending a clock synchronization command according to a clock synchronization detection process, and if the clock synchronization command is successfully sent, requesting secondary user data;
sending a remote control selection command according to the remote control operation detection flow, if the remote control selection command is successfully sent, sending a remote control execution command, and receiving an object state change event;
sending a heartbeat test command according to the heartbeat test detection flow, and if the heartbeat test command is successfully sent, confirming the heartbeat test;
if the remote link is reset, secondary data is requested, primary user data is received and processed, secondary user data is requested, the object state change event is received, and the result of the heartbeat test is confirmed to be successful, the condition is judged to be qualified; and if at least one of the remote link is reset, secondary data is requested, primary user data is received and processed, secondary user data is requested, the object state change event is received, and the heartbeat test is determined to be failed, judging that the remote link is unqualified.
Compared with the prior art, the invention has the following beneficial effects:
1. the testing system of the invention is provided with a feeder terminal equipment controller testing device and a hardware-in-the-loop power supply device, wherein the hardware-in-the-loop power supply device comprises a switch generator, a power supply side waver, a load side waver, a voltage transformer, a current transformer and an analog/digital conversion module, the switch generator is used for simulating the switch body of a breaker in distribution automation feeder terminal equipment, because the switch generator, the power supply side waver, the load side waver, the voltage transformer and the current transformer are fully digitalized, the waveforms of various phenomena in a distribution line are easy to generate, the testing system has important functions and functions born by the distribution automation feeder terminal equipment in a real-time and flexible simulation and test power distribution network, hardware cutting and software configuration can be carried out by the hardware-in-the-loop power supply device, and the advantage that the hardware-in-the-loop simulation test can be flexibly configured is utilized, the method can be used for performing complete automatic test on a distribution automation feeder terminal equipment test item set, and can also be used for performing hardware cutting on the distribution automation feeder terminal equipment and loading corresponding hardware-in-loop software modules so as to adapt to different automatic test application scenes of the distribution automation feeder terminal equipment, for example, production line detection of a distribution automation feeder terminal equipment manufacturer, group class level of a power grid company can perform delivery inspection on the distribution automation feeder terminal equipment, network-in-situ test on the distribution automation feeder terminal equipment, and the like.
2. In the test system, the test device of the feeder terminal equipment controller comprises an analog quantity output module, an output quantity output module and a high-speed switching quantity input module, can check whether the functions of remote measurement, remote signaling and remote control in the tested feeder terminal equipment controller are qualified or not, and is matched with a hardware-in-loop power supply device to realize the hardware-in-loop test of the distribution automation feeder terminal equipment.
3. The invention can realize the product quality tracking of the distribution automation feeder terminal equipment, a power grid company can judge whether the product quality is qualified or not for the delivery inspection of the distribution automation feeder terminal equipment and can track key information such as 'familial' defect, 'hereditary' defect, 'short plate' module of a product and the like of an equipment manufacturer, and the distribution automation feeder terminal equipment manufacturer carries out flow detection on the module of the distribution automation feeder terminal equipment on a production line to control the delivery quality of the distribution automation feeder terminal equipment product.
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 description of the embodiments or 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 creative efforts.
Fig. 1 is a block diagram of a hardware-in-the-loop test system of a distribution automation feeder terminal device according to an embodiment of the present invention.
Fig. 2 is a block diagram of a structure in which a hardware-in-loop power supply apparatus is connected to a feeder terminal device controller according to an embodiment of the present invention.
Fig. 3 is a block diagram of a power distribution automation feeder terminal device according to an embodiment of the present invention.
Fig. 4 is a test schematic diagram of a hardware-in-the-loop test system of a distribution automation feeder terminal device according to an embodiment of the present invention.
Fig. 5 is a flowchart of a communication protocol test according to an embodiment of the present invention.
FIG. 6 is a flow chart of a test of the switching generator according to an embodiment of the present invention.
Wherein, 1-feeder terminal equipment controller testing device, 101-industrial personal computer, 102-exchanger, 103-analog output module, 104-output module, 105-high speed switching value input module, 106-first power module, 107-first wireless communication module, 108-first expansion module, 2-hardware-in-the-loop power device, 201-switch generator, 202-power side wave former, 203-load side wave former, 204-first voltage transformer, 205-first current transformer, 206-analog/digital conversion module, 3-feeder terminal equipment controller, 301-main control embedded processor, 302-liquid crystal panel module, 303-telemetry data acquisition module, 304-signal data acquisition module, 305-remote control node output module, 306-second power supply, 307-second wireless communication module, 308-second expansion module, 4-breaker, 5-second voltage transformer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example (b):
as shown in fig. 1 and fig. 2, this embodiment provides a hardware-in-loop test system for distribution automation feeder terminal equipment, which includes a feeder terminal equipment controller test device 1 and a hardware-in-loop power supply device 2, where the feeder terminal equipment controller test device is connected to a feeder terminal equipment controller 3 and the hardware-in-loop power supply device 2, and the hardware-in-loop power supply device 2 is connected to the feeder terminal equipment controller 3, where the feeder terminal equipment controller 3 is a tested feeder terminal equipment controller.
The feeder terminal equipment controller testing device 1 carries out internal addressing and high-speed data exchange through 10/100BASE-TX and TCP/IP protocols, and comprises an industrial personal computer 101, a switch 102, an analog output module 103, an output module 104, a high-speed switching value input module 105 and a first power supply module 106, wherein the switch 102 is respectively connected with the industrial personal computer 101, the analog output module 103, the output module 104, the high-speed switching value input module 105, a hardware-in-loop power supply device 2 and a feeder terminal equipment controller 3.
The industrial personal computer 101 comprises an Intel i5/i7 or peripheral configurations of a series of CPUs, a 16/32G memory, a 256G solid state disk, a 19-inch display, a keyboard, a mouse and the like, is provided with an RS-485 communication interface and an RS-232 communication interface, supports an IEC60870-5-101 communication protocol, and has a transmission rate of 600/1200/2400/4800/9.6k/19.2k/2048 kbit/s.
The switch 102 is an industrial-grade switch, which has two 10/100BASE-T ethernet interfaces supporting IEC60870-5-104 communication protocols, and the two ethernet interfaces are a first ethernet interface LAN1 and a second ethernet interface LAN2, respectively, where the first ethernet interface LAN1 is used for data communication between the feeder terminal controller testing apparatus and the feeder terminal controller 3, and the second ethernet interface LAN2 is used for data communication between the feeder terminal controller testing apparatus 1 and the power grid company province city level distribution automation remote test management platform through the IEC60870-5-104 communication protocols.
The analog quantity output module 103 is configured to acquire data of the telemetry data acquisition module in the feeder terminal device controller 3, check whether the telemetry function in the feeder terminal device controller 3 is qualified, analyze the data into telemetry data according to message data acquired by the analog master station, and analyze corresponding data including acquired direct current values such as voltage and current, active power, reactive power, power factors, feeder fault current, zero sequence current or voltage, and battery voltage according to the point table.
The output module 104 is configured to acquire data of the remote signaling data acquisition module in the feeder terminal device controller 3, check whether a remote signaling function in the feeder terminal device controller 3 is qualified, analyze the data into remote signaling data according to message data acquired by the simulation master station, and analyze corresponding data including a switch position, a remote/local position, a protection action, fault information, and a power state according to a point table.
The high-speed switching value input module 105 is configured to acquire response data of the remote control node output module in the feeder terminal device controller 3 about the feeder terminal device to be tested, check whether the remote control function in the feeder terminal device controller 3 is qualified, send a remote control message according to the simulation master station, and check response indexes of the feeder terminal device to be tested, including correctness, success rate, retention time, and self-diagnosis function of remote control abnormality.
The power module 106 comprises 220V alternating current, an intelligent power supply unit and a storage battery, and is used for guaranteeing normal work of the feeder terminal equipment controller testing device 1 and hardware in the ring power supply device 2, including continuous work for more than thirty minutes under the condition of 220V alternating current power failure.
In order to implement wireless communication of the feeder terminal equipment controller testing apparatus 1, the feeder terminal equipment controller testing apparatus 1 of the present embodiment further includes a first wireless communication module 107, and the first wireless communication module 107 is connected to the switch 102; further, the first wireless communication module 107 has a wireless communication SMA interface to realize smooth handover of three wireless communication networks of 4G/3G/2G, the first wireless communication module 107 adopts a mainstream industrial grade communication chip, the antenna gain is greater than 5.0dBi, the first wireless communication module has a dual-card dual-standby and hard encryption function, supports a national secret SM1/SM2/SM3 encryption algorithm and a national secret IPSEC specification, supports three wireless communication networks of 4G/3G/2G, preferably adopts a 4G wireless communication network, and selects a communication operator according to requirements of a power grid company.
In order to implement the function extension of the feeder terminal device controller testing apparatus 1, the feeder terminal device controller testing apparatus of this embodiment further includes a first extension module 108, and the first extension module 108 is connected to the switch 102.
The hardware-in-the-loop power supply device 2 comprises a switch generator 201, a power supply side wave former 202(W1), a load side wave former 203(W2), a first voltage transformer 204, a first current transformer 205 and an analog/digital (A/D) conversion module 206, wherein the power supply side wave former 202 is respectively connected with the switch generator 201 and the voltage transformer 205, the load side wave former 203 is respectively connected with the switch generator 201, the first voltage transformer 204 and the first current transformer 205, and the analog/digital conversion module 206 is respectively connected with the switch generator 201, the first voltage transformer 204, the first current transformer 205 and a feeder terminal device controller 3; the interface of the analog/digital conversion module has a four-core PT (voltage transformer, which may be different in different areas of the grid company, such as three-core, five-core), a six-core CT (current transformer), a ten-core control C aviation socket, and a three-phase power supply and three-phase load side socket.
The switch generator 201 is used for simulating the function of a switch body of a circuit breaker in the tested feeder terminal equipment; the circuit breaker in the feeder terminal equipment can not only break and make normal load current, but also switch on and bear short-circuit current for a certain time, and can automatically trip under the action of the protection device to remove short-circuit faults, but the circuit breaker in the feeder terminal equipment is installed on a cross arm, has large volume, heavy weight, complex installation and other adverse factors, and is not suitable for remote signaling, remote measurement, remote control, and arrival inspection test and module quality tracking of functions and performances of the feeder terminal equipment controller 3.
The first voltage transformer 204 is used for digitally sampling phase voltages of an incoming line at the power supply side and an outgoing line at the load side; the current transformer 205 is used to digitize the phase current passed by the sample switch generator.
The analog/digital conversion module 206 is configured to convert digital signals and analog signals of the switching generator 201, the first voltage transformer 204, and the first current transformer 205 to each other, so as to adapt to signals required by the control C, PT and the CT in the feeder terminal device controller 3.
In order to protect the feeder terminal equipment controller testing device 1 and the hardware-on-loop power supply device 2, the feeder terminal equipment controller testing device 1 and the hardware-on-loop power supply device 2 may be installed in a cabinet with the length, width and height dimensions of 1600mm 610mm 670 mm.
Fig. 3 is a block diagram of a configuration of a distribution automation feeder terminal device, the device includes a feeder terminal device controller 3, a circuit breaker 4, a voltage transformer 5, a control cable, a support frame and other accessories, spare parts, a special tool and other components, the feeder terminal device controller 3 includes a main control embedded processor 301, a liquid crystal panel module 302, a telemetry data acquisition module 303, a remote signaling data acquisition module 304, a remote control node output module 305, a second power supply 306, a second wireless communication module 307 and a second expansion module 308, the telemetry data acquisition module 303, the remote signaling data acquisition module 304, the remote control node output module 305, the second power supply module 306, the second wireless communication module 307 and the second expansion module 308 are respectively connected to an analog output module 103, an output module 104, a high-speed switching value input module 105, and an analog output module 103, an output module 104, a high-speed switching value input module 105, and other components of a feeder terminal, The first power module 106, the first wireless communication module 107 and the first expansion module 108 correspond to each other, and the telemetry data acquisition module 303, the remote signaling data acquisition module 304, the remote control node output module 305, the second power supply 306, the second wireless communication module 307 and the second expansion module 308 are accessed to the master control embedded processor 301 through a CAN bus; the liquid crystal panel module 302 is composed of a primary wiring diagram, a reclosing timing diagram, a device state, a setting fixed value, a report record, a local command and version information, and can inquire real-time remote signaling and remote measuring data, set the fixed value and switch on and off a function pressing plate; further, the master embedded processor 301 has an RS-485 communication interface, an RS-232 communication interface and an 10/100BASE-T ethernet interface LAN, and the second wireless communication module 307 has a wireless communication SMA interface, wherein the RS-485 communication interface and the RS-232 communication interface support IEC60870-5-101 communication protocol, the ethernet interface LAN supports IEC60870-5-104 communication protocol, and the wireless communication SMA interface supports a 4G/3G/2G wireless communication network, preferably a 4G wireless communication network; the second voltage transformer 5 is a four-core PT, the circuit breaker 4 is provided with a second current transformer of a six-core CT and a ten-core control C aviation socket, the three-phase terminal of the circuit breaker 4 is respectively connected into a power side incoming line and a load side incoming line in a 10kV distribution line, wherein the second current transformer is connected into a feeder terminal equipment controller 3 installed on a tower through a CT cable, control and signals are connected into the feeder terminal equipment controller 3 through a control C cable, the voltage transformer 5 is respectively connected into the power side incoming line and the load side incoming line in the 10kV distribution line, and the second current transformer is connected into the feeder terminal equipment controller 3 through a PT cable.
The second voltage transformer 5 and the second current transformer in the breaker 4 are analog quantity sampling and measuring devices of the 10kV distribution line, through measuring the voltage and current in the incoming line of the power supply side and the incoming line of the load side, the feeder terminal equipment controller 3 calculates the three-phase voltage, the three-phase current, the zero-sequence voltage, the apparent power (active power and reactive power), the power factor, the frequency and the like, the condition of the 10kV distribution line is judged according to the condition and the threshold value, and when various faults occur, the switch body in the breaker executes corresponding specified actions. Therefore, the switch body in the circuit breaker is a key component for testing the distribution automation feeder terminal equipment, the switch body in the circuit breaker is integrated into the feeder terminal equipment controller testing device 1 in a mode of using the switch generator, the function and the performance of the distribution automation feeder terminal equipment can be completely tested, and the automatic testing process of the distribution automation feeder terminal equipment testing item list is completed through the mode of local automatic generation of a testing case or downloading from a distribution automation remote testing management platform, so that the testing efficiency is improved, because the switch generator simulates the action of the switch body in the circuit breaker, the switch operation and the time delay can be monitored in real time in the testing process, particularly, the power supply side wave former and the load side wave former are digital, various conditions of a distribution circuit can be flexibly simulated, wherein various fault waveforms are included, therefore, the hardware-in-loop test method is a hardware-in-loop test method, and the measurement principle is shown in fig. 4, wherein the hardware-in-loop power supply device 2 is connected with the feeder terminal equipment controller 3 through a PT cable, a CT cable and a core control C cable.
The embodiment also provides a hardware-in-loop test method of the distribution automation feeder terminal equipment, which comprises a communication protocol test and a switch generator test.
As shown in fig. 5, the communication protocol test includes the following steps:
s401, configuring and establishing an analog master station.
S402, connecting the feeder terminal equipment to be tested, if the connection fails, ending the operation, and if the connection succeeds, executing the following operations:
s403, according to the local initialization detection process of the power distribution master station, requesting the link state, and if the request is successful, resetting the distant link; if the request fails, the operation is determined to be disqualified, and the operation is ended.
S404, sending a link command according to a link test detection flow, and if the link command is successfully sent, requesting secondary data; if the transmission fails, the transmission is determined to be unqualified, and the operation is ended.
S405, requesting first-level user data according to the total calling detection flow, confirming total calling if the request is successful, receiving the first-level user data and processing; if the request fails, the operation is determined to be disqualified, and the operation is ended.
S406, requesting secondary user data according to the group calling detection flow, confirming group calling if the request is successful, receiving the secondary user data and processing; if the request fails, the operation is determined to be disqualified, and the operation is ended.
S407, sending a clock synchronization command according to the clock synchronization detection process, and if the clock synchronization command is successfully sent, requesting secondary user data; if the transmission fails, the transmission is determined to be unqualified, and the operation is ended.
S408, sending a remote control selection command according to the remote control operation detection flow, if the remote control selection command is successfully sent, sending a remote control execution command, and receiving an object state change event; if the transmission fails, the transmission is determined to be unqualified, and the operation is ended.
S409, sending a heartbeat test command according to the heartbeat test detection flow, and if the heartbeat test command is successfully sent, confirming the heartbeat test; if the transmission fails, the transmission is determined to be unqualified, and the operation is ended.
S410, if the remote link is reset, secondary data is requested, primary user data is received and processed, secondary user data is requested, the object state change event is received, and the heartbeat test result is confirmed to be successful, judging that the remote link is qualified, and ending the operation; if at least one of the remote link is reset, secondary data is requested, primary user data is received and processed, secondary user data is requested, object state change events are received, and the heartbeat test is confirmed to be failed, the operation is judged to be unqualified, and the operation is finished.
Steps S403 to S409 are performed synchronously.
As shown in fig. 6, the switching generator test comprises the following steps:
s601, simulating a master station connection switch generator, if the connection fails, ending the operation, and if the connection succeeds, executing the following operations:
s602, connecting an alternating current withstand voltage tester, if the connection is successful, performing an alternating current withstand voltage test, testing the voltage values of the whole pair of lines to the ground, the fracture and A, B, C lines to two phases and the ground, and judging whether the voltage values are consistent with expectations or not; if the connection fails, the connection is judged to be unqualified, and the operation is ended.
S603, connecting a loop resistance tester, if the connection is successful, performing loop resistance test, testing A, B, C phase position resistance values, and judging whether the resistance values are consistent with expectations or not; if the connection fails, the connection is judged to be unqualified, and the operation is ended.
S604, connecting an insulation resistance tester, if the connection is successful, performing insulation resistance test, testing A, B, C resistance values before and after two-phase and ground voltage resistance, and judging whether the values before and after voltage resistance of the resistance values are consistent; if the connection fails, the connection is judged to be unqualified, and the operation is ended.
S605, if the judgment results of the alternating current withstand voltage test, the loop resistance test and the insulation resistance test are consistent, judging that the alternating current withstand voltage test, the loop resistance test and the insulation resistance test are qualified, and ending the operation; and if at least one judgment result of the alternating-current withstand voltage test, the loop resistance test and the insulation resistance test is inconsistent, judging that the test is unqualified, and ending the operation.
In summary, the testing system of the invention is provided with a feeder terminal device controller testing device and a hardware-in-the-loop power supply device, wherein the hardware-in-the-loop power supply device comprises a switch generator, a power supply side waver, a load side waver, a voltage transformer, a current transformer and an analog/digital conversion module, the switch generator is used for simulating a switch body of a circuit breaker in distribution automation feeder terminal equipment, because the switch generator, the power supply side waver, the load side waver, the voltage transformer and the current transformer are fully digital, waveforms of various phenomena in a distribution line are easily generated, important functions and functions borne by the distribution automation feeder terminal equipment in a distribution network are simulated and tested flexibly in real time, hardware cutting and software configuration can be carried out through the hardware-in-the loop power supply device, and the advantage that the hardware-in-the-loop simulation test can be configured flexibly is utilized, the method can be used for performing complete automatic test on a distribution automation feeder terminal equipment test item set, and can also be used for performing hardware cutting on the distribution automation feeder terminal equipment and loading corresponding hardware-in-loop software modules so as to adapt to different automatic test application scenes of the distribution automation feeder terminal equipment, for example, production line detection of a distribution automation feeder terminal equipment manufacturer, group class level of a power grid company can perform delivery inspection on the distribution automation feeder terminal equipment, network-in-situ test on the distribution automation feeder terminal equipment, and the like.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the scope of the present invention.
Claims (10)
1. A hardware-in-loop test system of distribution automation feeder terminal equipment is characterized by comprising a feeder terminal equipment controller test device and a hardware-in-loop power supply device, wherein the feeder terminal equipment controller test device is respectively connected with a tested feeder terminal equipment controller and the hardware-in-loop power supply device;
the hardware-in-the-loop power supply device comprises a switch generator, a power supply side waver, a load side waver, a voltage transformer, a current transformer and an analog/digital conversion module, wherein the power supply side waver is respectively connected with the switch generator and the voltage transformer, the load side waver is respectively connected with the switch generator, the voltage transformer and the current transformer, and the analog/digital conversion module is respectively connected with the switch generator, the voltage transformer, the current transformer and a tested feeder terminal equipment controller;
the switch generator is used for simulating the function of a switch body of a circuit breaker in the tested feeder terminal equipment;
and the analog/digital conversion module is used for converting the digital signals and the analog signals of the switch generator, the voltage transformer and the current transformer into one another so as to adapt to the signals required by the tested feeder terminal equipment controller.
2. The hardware-in-loop test system of claim 1, wherein the feeder terminal equipment controller test device comprises an industrial personal computer, an exchanger, an analog output module, an output module and a high-speed switching value input module, wherein the exchanger is respectively connected with the industrial personal computer, the analog output module, the output module, the high-speed switching value input module, the hardware-in-loop power supply device and a tested feeder terminal equipment controller;
the analog quantity output module is used for acquiring data of the telemetering data acquisition module in the tested feeder terminal equipment controller, checking whether the telemetering function in the tested feeder terminal equipment controller is qualified or not, analyzing the data into telemetering data according to message data acquired by the simulation master station, and analyzing corresponding data according to the point table;
the output quantity output module is used for acquiring data of a remote signaling data acquisition module in the tested feeder terminal equipment controller, checking whether a remote signaling function in the tested feeder terminal equipment controller is qualified or not, analyzing the data into remote signaling data according to message data acquired by the simulation master station, and analyzing corresponding data according to the point table;
the high-speed switching value input module is used for acquiring response data of the remote control node output module in the tested feeder terminal equipment controller about the tested feeder terminal equipment, checking whether a remote control function in the tested feeder terminal equipment controller is qualified or not, sending a remote control message according to the simulation master station, and checking a response index of the tested feeder terminal equipment.
3. The hardware-in-the-loop test system of any one of claims 1-2, wherein the analog/digital conversion module is connected to a feeder terminal equipment controller under test through a voltage transformer cable, a current transformer cable and a control C cable.
4. A hardware-in-loop test system as claimed in any one of claims 1 to 2, wherein the switch has two ethernet interfaces, one of which is for data communication between the feeder terminal equipment controller test means and the feeder terminal equipment controller and the other of which is for data communication between the feeder terminal equipment controller test means and the distribution automation remote test management platform.
5. The hardware-in-the-loop test system of any one of claims 1-2, wherein the feeder terminal equipment controller test device further comprises a wireless communication module, the wireless communication module being connected to the switch.
6. The hardware-in-loop test system of claim 5, wherein the wireless communication module has a wireless communication SMA interface for implementing the switch of multiple wireless communication networks.
7. The hardware-in-loop test system of any one of claims 1-2, wherein the feeder terminal equipment controller test device further comprises an extension module, the extension module is connected with the switch for function extension of the feeder terminal equipment controller test device.
8. A hardware-in-loop test system as claimed in any one of claims 1 to 2, wherein the feeder terminal equipment controller test means and the hardware-in-loop power supply means are provided in a cabinet.
9. A hardware-in-loop test method of distribution automation feeder terminal equipment is characterized by comprising a communication protocol test and a switch generator test;
the switching generator test comprises:
in the case of a successful connection of the switching generator by the analog master station, the following operations are performed:
connecting an alternating current withstand voltage tester, if the connection is successful, performing an alternating current withstand voltage test, testing the voltage values of the whole pair of lines to the ground, the fracture and A, B, C lines to two phases and the ground, and judging whether the voltage values are consistent with expectations or not;
connecting a loop resistance tester, if the connection is successful, performing loop resistance test, testing A, B, C phase position resistance values, and judging whether the resistance values are consistent with expectations or not;
connecting an insulation resistance tester, if the connection is successful, performing insulation resistance test, testing A, B, C resistance values before and after two-phase and ground voltage resistance, and judging whether the values before and after the resistance voltage resistance are consistent;
if the judgment results of the alternating current withstand voltage test, the loop resistance test and the insulation resistance test are consistent, judging that the alternating current withstand voltage test, the loop resistance test and the insulation resistance test are qualified; and if at least one judgment result in the alternating-current withstand voltage test, the loop resistance test and the insulation resistance test is inconsistent, judging that the test is unqualified.
10. The hardware-in-loop test method of claim 9, wherein the communication protocol test comprises:
the method comprises the following steps of realizing configuration and establishing a simulation main station, and executing the following operations under the condition of successfully connecting the feeder terminal equipment to be tested:
initializing a detection flow according to the local power distribution master station, requesting a link state, and resetting a remote link if the request is successful;
sending a link command according to a link test detection flow, and if the link command is successfully sent, requesting secondary data;
requesting first-level user data according to the total calling detection flow, if the request is successful, confirming the total calling, receiving the first-level user data and processing;
requesting secondary user data according to the group call detection flow, if the request is successful, confirming the group call, receiving the secondary user data and processing;
sending a clock synchronization command according to a clock synchronization detection process, and if the clock synchronization command is successfully sent, requesting secondary user data;
sending a remote control selection command according to the remote control operation detection flow, if the remote control selection command is successfully sent, sending a remote control execution command, and receiving an object state change event;
sending a heartbeat test command according to the heartbeat test detection flow, and if the heartbeat test command is successfully sent, confirming the heartbeat test;
if the remote link is reset, secondary data is requested, primary user data is received and processed, secondary user data is requested, the object state change event is received, and the result of the heartbeat test is confirmed to be successful, the condition is judged to be qualified; and if at least one of the remote link is reset, secondary data is requested, primary user data is received and processed, secondary user data is requested, the object state change event is received, and the heartbeat test is determined to be failed, judging that the remote link is unqualified.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564838A (en) * | 2020-04-30 | 2020-08-21 | 南京南瑞继保工程技术有限公司 | Feeder terminal with dynamically-changed power consumption and power consumption control method |
| CN112557789A (en) * | 2020-11-30 | 2021-03-26 | 广东电网有限责任公司 | Self-adaptive distributed intelligent test system for distribution automation terminal |
| CN113162226A (en) * | 2021-03-08 | 2021-07-23 | 贵州电网有限责任公司 | Primary side fault injection FA system level test system and method based on HIL |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608465A (en) * | 2012-03-22 | 2012-07-25 | 珠海许继电气有限公司 | Automatic testing system for feed terminals |
| CN103869190A (en) * | 2014-03-17 | 2014-06-18 | 国家电网公司 | Real time simulation system-based power distribution terminal automatic closed-loop test platform |
| CN203858306U (en) * | 2014-01-14 | 2014-10-01 | 国家电网公司 | Automatic detection device for distribution network feeder terminal unit FTU |
| CN104991530A (en) * | 2015-05-19 | 2015-10-21 | 航天科工深圳（集团）有限公司 | Communication method based on CAN bus, and power distribution terminal |
| CN205427110U (en) * | 2016-03-16 | 2016-08-03 | 东方电子股份有限公司 | Feeder trouble emulation test platform |
| CN206020546U (en) * | 2016-08-09 | 2017-03-15 | 广州中超合能科技有限公司 | Distribution power automation terminal O＆M test system |
| CN207798999U (en) * | 2018-01-10 | 2018-08-31 | 云南电网有限责任公司电力科学研究院 | A kind of distribution automation system detection device |
| CN109167701A (en) * | 2018-08-22 | 2019-01-08 | 国电南瑞科技股份有限公司 | A kind of power distribution automation standardized extensions communication protocol consistency desired result method, apparatus and system |
-
2019
- 2019-12-16 CN CN201911290247.0A patent/CN110954769A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608465A (en) * | 2012-03-22 | 2012-07-25 | 珠海许继电气有限公司 | Automatic testing system for feed terminals |
| CN203858306U (en) * | 2014-01-14 | 2014-10-01 | 国家电网公司 | Automatic detection device for distribution network feeder terminal unit FTU |
| CN103869190A (en) * | 2014-03-17 | 2014-06-18 | 国家电网公司 | Real time simulation system-based power distribution terminal automatic closed-loop test platform |
| CN104991530A (en) * | 2015-05-19 | 2015-10-21 | 航天科工深圳（集团）有限公司 | Communication method based on CAN bus, and power distribution terminal |
| CN205427110U (en) * | 2016-03-16 | 2016-08-03 | 东方电子股份有限公司 | Feeder trouble emulation test platform |
| CN206020546U (en) * | 2016-08-09 | 2017-03-15 | 广州中超合能科技有限公司 | Distribution power automation terminal O＆M test system |
| CN207798999U (en) * | 2018-01-10 | 2018-08-31 | 云南电网有限责任公司电力科学研究院 | A kind of distribution automation system detection device |
| CN109167701A (en) * | 2018-08-22 | 2019-01-08 | 国电南瑞科技股份有限公司 | A kind of power distribution automation standardized extensions communication protocol consistency desired result method, apparatus and system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564838A (en) * | 2020-04-30 | 2020-08-21 | 南京南瑞继保工程技术有限公司 | Feeder terminal with dynamically-changed power consumption and power consumption control method |
| CN112557789A (en) * | 2020-11-30 | 2021-03-26 | 广东电网有限责任公司 | Self-adaptive distributed intelligent test system for distribution automation terminal |
| CN113162226A (en) * | 2021-03-08 | 2021-07-23 | 贵州电网有限责任公司 | Primary side fault injection FA system level test system and method based on HIL |
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