KR20210147978A - Apparatus, method and system for automation of surge immunity test for intelligent electric devices - Google Patents

Abstract

The present invention relates to a surge tolerance test automation device for an intelligent power device, and a method and a system thereof, and more particularly, to a surge tolerance test automation device for an intelligent power device, which can automatically and efficiently perform a surge tolerance test for a plurality of ports provided in an intelligent power device. The surge tolerance test automation system, which automatically performs a surge tolerance test while sequentially applying surge to a plurality of ports provided in an intelligent power device, comprises: a surge generation unit for generating surge applied to an intelligent power device for a surge tolerance test; a switch unit for switching a path along which the surge travels to change a port of the intelligent power device to which the surge is applied; and a test automation main platform for performing the surge tolerance test on the intelligent power device while controlling an operation of the surge generation unit and the switch unit. The test automation main platform automatically sequentially performs a unit surge tolerance test for each port while controlling the port to which the surge is applied and an operating environment of the intelligent power device in accordance with a predetermined sequence.

Description

Apparatus, method and system for automation of surge immunity test for intelligent electric devices

The present invention relates to an apparatus, method and system for automating surge immunity test for intelligent power devices, and more particularly, intelligent power capable of automatically and efficiently performing a surge immunity test for a plurality of ports provided in intelligent power devices. It relates to an apparatus, method and system for automatic surge immunity test for equipment.

If you want to develop or use electrical equipment installed and used in residential, commercial, industrial, and power plants and substations, you must certify that the electrical equipment conforms to the standard through the testing or certification process required according to the operating environment of each electric equipment. do. Accordingly, in the case of overseas, it is required to verify the performance according to the test items stipulated in the international standard, and in the case of the domestic case, the performance is verified according to the corresponding or partially revised standards according to the domestic situation.

In this regard, the international standard IEC 61000 is the most commonly used electronic device compatibility test standard internationally, and resistance to switching surges caused by transients caused by double lightning or switching devices installed in the power system, etc. A typical example is the surge immunity test to test the

The surge immunity test is performed by applying the standard waveform of voltage 1.2/50 us and current 8/20 us defined in the international standard IEC 61000-4-5 to the device under test. Here, the test target device may have various ports according to its function, nature, design method, etc., and most ports are included in the test target if they do not fall under the exceptions excluded from the test. At this time, as a state of preparation for the test, the device under test is driven in a representative operating state, and auxiliary devices are connected to all ports of the device under test to implement a simulated operating state.

Various electrical devices may be used as the test target device for the surge immunity test, but among them, Intelligent Electric Device (IED) installed in industrial, power plant and substation environments is used to prevent power outages in the power system. It is a device that plays a key role in processing the most sensitive information by connecting to switchgear/blocking devices, relays, and transformers, such as protecting the system or monitoring power lines in real time to determine whether there is an accident. Accordingly, the number of ports provided is greater than that of residential and commercial devices, and there are various types.

Most commonly, ports provided in electric devices include power ports for applying power, voltage and current circuit ports for acquiring voltage and current information of the measurement object in real time, and sending open/close commands or open/close signals through trip signals. A binary input/output port for acquiring and monitoring the status, and a communication port for communication between devices or information transfer between servers/clients are included.

In addition, components for the surge immunity test for electrical equipment may include a surge generator, coupling network, decoupling network, reference ground, and insulation for supporting the device under test. Accordingly, the tester arranges each component according to the requirements of the standard, and configures a test path by connecting the surge generator to the device under test through a coupling network. At this time, a decoupling network is used to protect auxiliary devices for realizing a representative operating state of the device under test, and through this, a surge waveform is blocked from being applied to an unwanted path.

Next, the tester checks the test arrangement and the operating state of the device under test, and then proceeds with the surge immunity test for each port in turn. At this time, the tester should check whether the device under test is in normal operation before, during, and after the test.

However, in the related art, as shown in FIGS. 1 and 2 , a tester directly connects each port in turn to perform a unit test. In this case, the unit test means performing a test on the corresponding port by wiring for each port.

For example, after connecting the test circuit to the power port, before and after the test, perform the operation to check the normal operation status of the device under test. In addition, during the test, the normal operating state of the device under test is monitored in real time through the naked eye.

Accordingly, if the unit test is completed without any problems, the tester must change the connection to the next port for the next unit test. At this time, in the prior art, the tester directly uses a tool to change the wiring, and repeats the operation before and after the test to check the normal operation state.

Therefore, when the test is performed in the above manner according to the prior art, the tester must directly intervene for each unit test to change the wiring, and to check the normal operation of the device under test before, during, and after the test. During the test time, the work efficiency is greatly reduced because it is necessary to directly intervene in the progress of the test.

For a more specific example, in the case of a typical intelligent power device (IED) designed with 7 ports, the time required for a pure surge immunity test is usually about 1,260 minutes (21 hours), and the tester needs to change the wiring and check the normal operation. It takes about 315 minutes (5.2 hours), for a total of 26 hours.

In addition, since the tester must directly intervene in each unit test to perform the test, if the tester does not recognize that the unit test is finished, the end of the unit test is delayed and the overall test time increases.

Laid-open Patent Publication No. 10-2018-0054330 (2018.05.24)

The present invention was devised to solve the problems of the prior art as described above, and it is an intelligent power that can reduce the time required for wiring and normal operation check by automating the surge immunity test for intelligent power devices and effectively shorten the test time. Its purpose is to provide an apparatus, method and system for automatic surge immunity test for equipment.

A surge immunity test automation system according to one aspect of the present invention for solving the above problems is a surge immunity test automation system that automatically performs a surge immunity test while sequentially applying a surge to a plurality of ports provided in an intelligent power device, a surge generator for generating a surge applied to an intelligent power device for a surge immunity test; a switch unit for changing a port of the intelligent power device to which the surge is applied by switching the path along which the surge travels; and a test automation main platform that performs a surge immunity test on the intelligent power device while controlling the operation of the surge generating unit and the switch unit, wherein in the test automation main platform, the surge according to a predetermined sequence It is characterized by automatically performing a unit surge immunity test for each port sequentially while controlling the port to which is applied and the operating environment of the intelligent power device.

In this case, in the test automation main platform, it is possible to check whether the intelligent power device operates normally before and after the unit surge immunity test for each port.

In addition, in the test automation main platform, it is possible to check whether the intelligent power device operates normally during the unit surge immunity test for each port.

In addition, the test automation main platform applies an input signal corresponding to a predetermined operation to the binary input port of the intelligent power device and receives an output signal from the binary output port, to check whether the intelligent power device operates normally. have.

In addition, the test automation main platform,

It is possible to check whether the intelligent power device operates normally while transmitting and receiving communication data using the communication port of the intelligent power device.

Furthermore, by connecting some or all of the plurality of output terminals of the switch unit to some or all of the plurality of ports of the intelligent power device, respectively, a coupling network for transferring the surge applied through the plurality of output terminals to the plurality of ports ; and a decoupling network that blocks a surge applied through some or all of the plurality of output terminals of the switch unit to prevent the surge from being transmitted to another device.

In addition, the test automation main platform controls the switch unit to sequentially change the port of the intelligent power device to which the surge is applied, and controls the surge generator to control the surge generating unit to generate the waveform of the surge applied to each port according to a predetermined sequence. Surge immunity tests can be performed with sequential changes.

In addition, the power supply unit for supplying power for the operation of the intelligent power device; may further include.

In addition, the surge immunity test automation device according to another embodiment of the present invention is a surge immunity test automation device that automatically performs a surge immunity test while sequentially applying a surge to a plurality of ports provided in an intelligent power device, the surge immunity test a surge control module for controlling a surge generating unit that generates a surge applied to an intelligent power device; a switch control module for controlling a switch unit that switches a path along which the surge travels to change a port of the intelligent power device to which the surge is applied; and a normal operation check module for confirming whether the intelligent power device is operating normally with respect to the application of the surge, wherein the surge immunity test automation device includes a port to which the surge is applied and the intelligent It is characterized by automatically performing a unit surge immunity test for each port sequentially while controlling the operating environment of the power device.

Accordingly, in the apparatus, method and system 100 for automating surge immunity test for intelligent power devices according to an embodiment of the present invention, the test automation main platform 110 , the surge generating unit 120 , and the switch unit 130 . , by having the power supply unit 140 and the like to sequentially perform a surge immunity test for each port while controlling the port to which the surge is applied according to a predetermined sequence and the operating environment of the intelligent power device. By automating the surge immunity test, the tester can reduce the time required for direct wiring and check normal operation and effectively shorten the test time.

In addition, in the apparatus, method and system 100 for automating a surge immunity test for an intelligent power device according to an embodiment of the present invention, the time required for testing such as changing the wiring, automating the normal operation check of the intelligent power device, It is possible to increase the efficiency of manpower utilization through semi-unmanned operation, and furthermore, it is possible to monitor the state of the device under test and automatically record the event log by using binary input and output signals or by using communication data without the tester directly checking it. It is possible to more accurately determine whether the device is operating normally.

The accompanying drawings, which are included as a part of the detailed description to help the understanding of the present invention, provide embodiments of the present invention, and together with the detailed description, explain the technical spirit of the present invention.
1 is an exemplary diagram of a surge immunity test circuit according to the prior art.
2 is an exemplary diagram of an integrated surge immunity test circuit according to the prior art.
3 is a block diagram of a surge immunity test automation system 100 according to an embodiment of the present invention.
4 is a diagram illustrating the operation of the surge immunity test automation system 100 for an intelligent power device according to an embodiment of the present invention.
5 is a diagram illustrating an effect of reducing a test time by the surge immunity test automation system 100 for an intelligent power device according to an embodiment of the present invention.
6 is a block diagram of an automated surge immunity test apparatus 110 according to an embodiment of the present invention.
7 is a flowchart illustrating a specific operation sequence of the surge immunity test automation apparatus 110 and the system 110 according to an embodiment of the present invention.

The present invention can apply various transformations and can have various embodiments. Hereinafter, specific embodiments will be described in detail based on the accompanying drawings.

The following examples are provided to provide a comprehensive understanding of the methods, apparatus and/or systems described herein. However, this is merely an example, and the present invention is not limited thereto.

In describing the embodiments of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification. The terminology used in the detailed description is for the purpose of describing embodiments of the present invention only, and should not be limiting in any way. Unless explicitly used otherwise, expressions in the singular include the meaning of the plural. In this description, expressions such as “comprising” or “comprising” are intended to indicate certain features, numbers, steps, acts, elements, some or a combination thereof, one or more other than those described. It should not be construed to exclude the presence or possibility of other features, numbers, steps, acts, elements, or any part or combination thereof.

In addition, terms such as first, second, etc. may be used to describe various components, but the components are not limited by the terms, and the terms are for the purpose of distinguishing one component from other components. is used only as

Hereinafter, exemplary embodiments of a surge immunity test automation apparatus, method, and system 100 for an intelligent power device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, FIG. 3 illustrates a block diagram of a surge immunity test automation system 100 according to an embodiment of the present invention. As can be seen in Figure 3, the surge immunity test automation system 100 according to an embodiment of the present invention, a surge with a plurality of ports provided in an intelligent electric device (Intelligent Electric Device, IED) 200 (surge) ) as a surge immunity test automation system 100 that automatically performs a surge immunity test while sequentially applying, a surge generating unit 120 that generates a surge applied to the intelligent power device 200 for the surge immunity test, the surge while controlling the operation of the switch unit 130 and the surge generating unit 120 and the switch unit 130 for changing the port of the intelligent power device 200 to which the surge is applied by switching the path along the It is configured to include a test automation main platform 110 for performing a surge immunity test for the intelligent power device 200, and in the test automation main platform 110, the port to which the surge is applied according to a predetermined sequence and the It is characterized by automatically performing a unit surge immunity test for each port sequentially while controlling the operating environment of the intelligent power device 200 .

At this time, as can be seen in FIG. 3 , the surge immunity test automation system 100 according to an embodiment of the present invention uses some or all of the plurality of output terminals of the switch unit 130 as the intelligent power device, respectively. Among the plurality of output terminals of the coupling circuit 150 and the switch unit 130 that are connected to some or all of the plurality of ports of 200 and transmit the surge applied through the plurality of output terminals to the plurality of ports It may further include a decoupling network 160 that blocks the surge applied through some or all of it to prevent the surge from being transmitted to other devices, and furthermore supplies power for the operation of the intelligent power device 200 . It may further include a power supply 140 that does.

Accordingly, in the surge immunity test automation system 100 according to an embodiment of the present invention, the port to which a surge is applied according to a predetermined sequence in the test automation main platform 110 and the operation of the intelligent power device 200 By automating the surge immunity test for the intelligent power device 200 by sequentially performing the surge immunity test for each port while controlling the environment, the tester reduces the time it takes for direct wiring and normal operation check, and reduces the test time can be shortened effectively.

More specifically, FIG. 4 shows a diagram for explaining a specific configuration and operation of the surge immunity test automation system 100 according to an embodiment of the present invention.

Hereinafter, with reference to FIGS. 3 and 4 , the surge resistance test automation system 100 according to an embodiment of the present invention is divided into each configuration and looked at in more detail.

First, the surge generating unit 120 generates a surge applied to the intelligent power device 200 for a surge immunity test.

In this case, the surge may be generated as a standard waveform of voltage 1.2/50 us and current 8/20 us defined in IEC 61000-4-5, but the present invention is not necessarily limited thereto.

In addition, the test automation main platform 110 may control the waveform and generation timing of the surge generated by the surge generator 120 through a control signal or the like.

Next, the switch unit 130 may change the port of the intelligent power device 200 to which the surge is applied by switching the path along which the surge travels.

At this time, the test automation main platform 110 controls the switch unit 130 through a control signal, etc. to generate a surge generated by the surge generating unit 120 among a plurality of ports provided in the intelligent power device 200 . You can change the port to which is authorized.

Accordingly, the test automation main platform 110 can sequentially perform a unit surge immunity test for each port while changing the port to which the surge is applied according to a preset sequence.

In addition, the power supply unit 140 supplies power for the operation of the intelligent power device 200 .

At this time, the test automation main platform 110 transmits the voltage and current required for the operation of the intelligent power device 200 according to the type, characteristic and state of the intelligent power device 200 through a control signal to the intelligent power device ( 200) can be supplied.

Accordingly, the voltage and current supplied from the power supply unit 140 may be supplied to the intelligent power device 200 through a voltage input port and a current input port of the intelligent power device 200 .

In addition, in the coupling network 150, some or all of the plurality of output terminals of the switch unit 130 are connected to some or all of the plurality of ports of the intelligent power device 200, respectively, and the plurality of output terminals The surge applied through the is transmitted to the plurality of ports.

For a more specific example, as can be seen in FIG. 4 , a plurality of output terminals of the switch unit 130 are connected to a plurality of ports (Mains, Voltage, Current, Binary input, Binary) of the intelligent power device 200, respectively. When supplying a surge to the output), the coupling network 150 is a plurality of output terminals of the switch unit 130 and a plurality of ports of the intelligent power device 200 (Mains, Voltage, Current, Binary input, Binary) output), the surge applied through the plurality of output terminals of the switch unit 130 is transferred to the plurality of ports of the intelligent power device 200 .

In addition, in the decoupling network 160 , the surge applied through some or all of the plurality of output terminals of the switch unit 130 is blocked to prevent the surge from being transmitted to other devices.

As a more specific example, as can be seen in FIG. 4 , when some of the plurality of output terminals of the switch unit 130 are connected to the plurality of terminals of the power supply unit 140 , the decoupling network 160 ) prevents a surge applied through some output terminals of the switch unit 130 from being transmitted to the power supply unit 140 .

Accordingly, the surge generated by the surge generating unit 120 is prevented from being transmitted to the power supply unit 140 , and sequentially transmitted to a plurality of ports of the intelligent power device 200 , the intelligent power device It becomes possible to stably perform the unit surge immunity test for each port of (200).

Finally, in the test automation main platform 110 , while controlling the operations of the surge generating unit 120 and the switch unit 130 , a surge immunity test for the intelligent power device 200 is performed.

More specifically, the test automation main platform 110 controls the switch unit 130 to sequentially change the port of the intelligent power device 200 to which the surge is applied, while the surge generating unit 120 is operated. The surge immunity test can be performed while sequentially changing the waveform of the surge applied to each port according to a predetermined sequence by controlling it.

Accordingly, the test automation main platform 110 automatically performs a unit surge immunity test for each port sequentially while controlling the operating environment of the port to which the surge is applied and the intelligent power device 200 according to a predetermined sequence. be able to perform

Here, the unit surge immunity test refers to a unit test for applying a surge according to a predetermined test standard to each port of the intelligent power device 200, and the surge resistance to the intelligent power device 200 The test may be made by a series of unit surge immunity tests for a plurality of ports provided in the intelligent power device 200 .

In addition, in the surge immunity test automation system 100 according to an embodiment of the present invention, in the test automation main platform 110, the intelligent power device 200 before and after the unit surge immunity test for each port. Normal operation of the intelligent power device 200 can be checked, and further, by checking and storing whether the intelligent power device 200 operates normally during the unit surge immunity test for each port, the tester directly operates the intelligent power device 200 normally. It is possible to eliminate the time and inconvenience it takes to check whether or not there is.

More specifically, the test automation main platform 110 applies an input signal corresponding to a predetermined operation to a binary input port (Binary input in FIG. 4) of the intelligent power device 200 and a binary output port (FIG. 4) By receiving an output signal output from the binary output of ), it is possible to check whether the intelligent power device 200 operates normally.

Furthermore, the test automation main platform 110 may check whether the intelligent power device operates normally while transmitting and receiving communication data using the communication port (Comm. in FIG. 4 ) of the intelligent power device 200 . In this case, the communication port may transmit and receive communication data using the IEC-61850 standard, but the present invention is not necessarily limited thereto.

Accordingly, in the surge immunity test automation system 100 for the intelligent power device 200 according to an embodiment of the present invention, the unit test is sequentially performed on the intelligent power device 200 having a plurality of ports according to the prior art. It can have the effect of improving the problems that could have arisen if it is carried out as 1) efficiency, 2) automatic functionalization, 3) automatic monitoring, and 4) semi-unmanned operation.

More specifically, as described above, the conventional test method has a problem in that the tester directly intervenes between unit tests to change the wiring to the next test target port, and to check the function before and after the start of the test. .

In contrast, the surge immunity test automation system 100 for the intelligent power device 200 according to an embodiment of the present invention saves time required for testing such as changing the wiring, automates the normal operation check of the intelligent power device, It is possible to increase the efficiency of manpower utilization through semi-unmanned operation, and furthermore, it is possible to monitor the state of the device under test and automatically record the event log by using binary input and output signals or by using communication data without the tester directly checking it. It is possible to more accurately determine whether the device is operating normally.

Accordingly, in the surge immunity test automation system 100 for the intelligent power device 200 according to the present invention, the surge immunity test automation system 100 and the test according to the present invention in the initial stage of the test in performing the surge immunity test A plurality of ports (control power, voltage circuit, current circuit, binary input/output circuit, etc.) of the target intelligent power device 200 are connected, and the connection is changed to a desired port through remote control of the switch unit 130 .

At this time, in the surge immunity test automation system 100 according to the present invention, the power supply unit 140 and the binary input and output ports are predefined to simulate a representative operating state of the intelligent power device 200 to be tested. Voltage, current, input and output signals are exchanged.

In addition, in the coupling network 150 and the decoupling network 160, when the path of the surge test is connected to the desired port, the surge waveform is applied to the desired device under test 200 and at the same time, the surge immunity test automation system ( 100) to block the reverse inflow of the surge.

In addition, the test automation main platform 110 controls a series of test sequences by linking the power supply unit 140 , the switch unit 130 , the surge generator 120 , and independent binary input and output ports. Through this configuration, a series of unit surge immunity tests can be sequentially performed without the operator's intervention by defining the test sequence that the tester wants to perform according to the requirements of international or domestic standards in advance.

In addition, in addition to the mechanism for sequentially performing the unit surge immunity test described above, it is also possible to additionally check and monitor whether the intelligent power device 200 operates normally before, during, and after the unit surge immunity test. .

More specifically, in the surge immunity test automation system 100 according to an embodiment of the present invention, the unit surge immunity test is performed while automatically changing the wiring according to a predetermined sequence, and at the same time, before the unit surge immunity test, Afterwards, it is possible to check whether the function (eg, overcurrent protection function, overvoltage protection function) of the intelligent power device 200 to be tested operates normally, and furthermore, even in the situation where the unit surge immunity test is in progress, the intelligent power device 200 to be tested ) can be monitored in real time.

Therefore, it is possible to control the power supply unit 140 to check whether the function of the intelligent power device 200 operates normally (overcurrent protection function, overvoltage protection function) before and after the unit surge immunity test, and the event that occurs at this time is It can be collected and utilized through independent binary input and output ports or communication ports.

Furthermore, in the surge resistance test automation system 100 according to an embodiment of the present invention, by automatically recording the event that occurred during the surge resistance test as a log, it is possible to reduce the inconvenience of having to check and record the previous tester with the naked eye, etc. , it becomes possible to effectively and conveniently perform a series of unit surge immunity tests for the intelligent power device 200 more efficiently.

On the other hand, in the prior art, a tester directly connects each port of the surge generator 120 and the intelligent power device 200 to be tested, visually confirms whether the function operates normally before and after the unit surge immunity test, and unit surge immunity During the test, the state of the intelligent power device 200 to be tested had to be directly monitored in real time.

Accordingly, in the prior art, when the unit surge immunity test for one port is completed, the tester directly intervenes and changes the wiring to the next port. The difficulty of repeating the unit surge immunity test followed.

In contrast, in the surge immunity test automation system 100 according to an embodiment of the present invention, before starting the surge immunity test, each port of the intelligent power device 200 to be tested is first tested in the surge immunity test automation system according to the present invention When connected to (100), the test automation main platform 110 performs a unit surge immunity test for each port while switching by controlling the switch unit 130 according to a predefined sequence.

At this time, before and after each unit surge immunity test, a predefined function test is performed to check whether the intelligent power device 200 to be tested operates normally, and the binary input/output port or communication port is checked during the unit surge immunity test. Through this, an event log for the operating state of the intelligent power device 200 is recorded in real time.

Accordingly, in the surge resistance test automation system 100 according to an embodiment of the present invention, if the tester performs the first connection in the initial stage of the test, there is no need for the tester to directly intervene thereafter, so a series of unit surge immunity tests can be automated, so that efficient surge immunity tests can be performed.

In addition, in [Table 1] below, the configuration of the test sequence for the device under test 200 composed of five ports is exemplified.

is it
port mode Relay final
(+) final
(-) Voltage
(V) test sequence event power Common 1 Set V+ GND After checking the relay set signal, test start Start 500 (completion) Record start time and end time Continue 1000 (completion) Record start time and end time Continue 2000 (completion) Record start time and end time common 2 Set V- GND Continue same as below 500 (completion) Continue 1000 (completion) Continue 2000 (completion) differential Set V+ V- Continue 500 (completion) Continue 1000 (completion) Voltage Common 1 Set V+ GND Start 500 (completion) Continue 1000 (completion) Continue 2000 (completion) common 2 Set V- GND Continue 500 (completion) Continue 1000 (completion) Continue 2000 (completion) differential Set V+ V- Continue 500 (completion) Continue 1000 (completion) electric current Common 1 Set A+ GND Continue 500 (completion) Continue 1000 (completion) Continue 2000 (completion) common 2 Set A- GND Continue 500 (completion) Continue 1000 (completion) Continue 2000 (completion) differential Set A+ A- Continue 500 (completion) Continue 1000 (completion) binary
input Common 1 Set DI+ GND Continue 500 (completion) Continue 1000 (completion) common 2 Set DI- GND Continue 500 (completion) Continue 1000 (completion) differential Set DI+ DI- Continue 500 (completion) binary
Print Common 1 Set DO+ GND Continue 500 (completion) Continue 1000 (completion) common 2 Set DO- GND Continue 500 (completion) Continue 1000 (completion) differential Set DO+ DO- Continue 500 END Result report popup

Accordingly, in the automatic surge immunity test system 100 for the intelligent power device 200 according to an embodiment of the present invention, the entire port of the intelligent power device 200 to be tested is manually connected only once for the first time in the test preparation step and (including wiring for power, PT/CT, DO/DI, communication port and external power supply 140 and switch unit 130), and manually connect the surge generator 120 only once (switch unit 130) ), a series of unit surge immunity tests for each port are automatically performed, and surge immunity tests according to predetermined standards such as IEC 61000-4-5 can be performed (total test time approx. 20 hours), and furthermore, before and after unit surge immunity test, as well as normal operation during the test, the normal operation of the intelligent power device 200 through binary input and output port signals or communication (eg, IEC 61850). Automated surge immunity tests including automatic judgment of operation can be performed.

Accordingly, in the automatic surge immunity test system 100 for the intelligent power device 200 according to an embodiment of the present invention, from the perspective of the intelligent power device 200 manufacturer, malfunction phenomenon during the EMC (Electo-Magnetic Compatibility) test is monitored by IEC 61850 communication packet information, and communication-related events are collected during testing to analyze the effect of communication errors on unit functions (protection, monitoring, control, measurement, etc.), and intelligent power equipment (200) From the point of view of the testing institute, in the case of IEC 61850 equipped devices, test decision automation using communication packet information is possible, and the use of an automatic test system reduces test wiring time and improves tester operation efficiency (unmanned).

As a more specific example, FIG. 5 shows the time required for testing and the time required for wiring and checking the normal operation of the intelligent power device 200 having generally seven ports.

In this case, the time required for the test refers to the time purely input when performing the surge immunity test on the intelligent power device 200 to be tested composed of seven ports. At this time, in the surge immunity test automation system 100 for the intelligent power device 200 according to an embodiment of the present invention, the wiring change and normal operation check time performed for each step of the unit surge immunity test 21 times compared to the manual wiring work It can be reduced to 1/30, thus saving the total test time by up to 5 hours. In addition, it is possible to save time that the tester has put in for direct wiring change and real-time monitoring through semi-unmanned technology in the prior art.

In addition, FIG. 6 illustrates a block diagram of the surge immunity test automation apparatus 110 according to an embodiment of the present invention.

As can be seen in FIG. 6 , the surge immunity test automation device 110 according to an embodiment of the present invention automatically performs a surge immunity test while sequentially applying a surge to a plurality of ports provided in the intelligent power device 200 . As a surge immunity test automation device 200 that is performed by Normal to check whether the switch control module 112 for controlling the switch unit for switching and changing the port of the intelligent power device 200 to which the surge is applied and the intelligent power device 200 for the application of the surge operates normally It may be configured to include an operation check module 113 , wherein the surge immunity test automation device 110 controls the port to which the surge is applied and the operating environment of the intelligent power device 200 according to a predetermined sequence. It is characterized by automatically performing the unit surge immunity test for each port sequentially.

At this time, for the surge tolerance test automation device 110 according to an embodiment of the present invention, since the description of the surge tolerance test automation system 100 and FIGS. 3 to 5 may be referred to, a detailed description here The repetition of is omitted.

Next, FIG. 7 illustrates a flowchart showing a specific operation sequence of the surge immunity test automation apparatus 110 and the system 110 according to an embodiment of the present invention.

First, in step S1100, a setup for a surge immunity test for the intelligent power device 200 is performed.

More specifically, in step S1110, the tester performs the first connection.

Subsequently, in step S1120, the tester inputs the electric power and signal values for the intelligent power device 200 to be tested.

Accordingly, in step S1130, it is determined whether the blocking function of the intelligent power device 200 is normally operated.

At this time, when the blocking function of the intelligent power device 200 does not operate normally, a correction value is input (S1140).

In addition, in step S1150, a port to perform the surge immunity test is selected, and in step S1160, a test level for the surge immunity test is input.

Subsequently, in step S1200, the intelligent power device 200 is activated.

More specifically, in step S1210, power and a signal are applied to the intelligent power device 200 .

Subsequently, in step S1220, monitoring of the intelligent power device 200 is activated.

In addition, in step S1300, a functional operation for the intelligent power device 200 is performed.

More specifically, in step S1310, it is checked whether the function of the intelligent power device 200 is normally operated.

Subsequently, in step S1320, the state of the intelligent power device 200 is reset.

Next, in step S1400, a surge immunity test sequence for the intelligent power device 200 is performed.

More specifically, in step S1410, the intelligent power device 200 selects a port to perform a unit surge immunity test.

Subsequently, in step S1420, a test mode for the selected port is selected.

Also, in step S1430, a test level for the selected port is selected, and in step S1440, a polarity is selected.

Accordingly, in step S1550, a surge of the determined waveform is applied to the selected port to perform a unit surge immunity test.

Then, while repeating steps S1300 to S1400, a unit surge immunity test is performed on a plurality of ports provided in the intelligent power device 200 .

Finally, in step S1500, a surge resistance test result for the intelligent power device 200 is output.

Accordingly, in step S1510, the results according to the series of tests are reviewed and analyzed, and in step S1520, a surge immunity test report for the intelligent power device 200 is output and provided.

Accordingly, in the surge immunity test automation apparatus 110, method and system 100 for the intelligent power device 200 according to an embodiment of the present invention, the test automation main platform 110, the surge generator 120 , a switch unit 130, a power supply unit 140, etc. to sequentially perform a surge immunity test for each port while controlling the operating environment of the port and the intelligent power device 200 to which the surge is applied according to a predetermined sequence. By doing so, it is possible to automate the surge immunity test for the intelligent power device 200 to reduce the time required for direct wiring and normal operation check by the tester and effectively shorten the test time.

In addition, in the surge immunity test automation device 110, method and system 100 for the intelligent power device 200 according to an embodiment of the present invention, the time required for testing such as changing the wiring, the intelligent power device It is possible to improve the efficiency of manpower utilization through automation and semi-unmanned operation of checking the normal operation of 200, and furthermore, the test target intelligent power device 200 using binary input and output signals or communication data without the tester directly checking it. State monitoring and automatic recording of event logs are also possible, so that it is possible to more accurately determine whether the intelligent power device 200 to be tested operates normally.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Accordingly, the embodiments described in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and are not limited to these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: Surge Immunity Test Automation System
110: test automation main platform
111: surge control module
112: switching control module
113: normal operation check module
120: surge generating unit
130: switch unit
140: power supply
150: coupling network
160: decoupling network
200: intelligent power device

Claims (9)

In a surge immunity test automation system that automatically performs a surge immunity test while sequentially applying a surge to a plurality of ports provided in an intelligent power device,
a surge generator for generating a surge applied to an intelligent power device for a surge immunity test;
a switch unit for changing a port of the intelligent power device to which the surge is applied by switching the path along which the surge travels; and
and a test automation main platform that performs a surge immunity test on the intelligent power device while controlling the operation of the surge generator and the switch unit; and
In the test automation main platform,
Surge immunity test automation system, characterized in that automatically performing a unit surge immunity test for each port sequentially while controlling the operation environment of the port to which the surge is applied and the intelligent power device according to a predetermined sequence. According to claim 1,
In the test automation main platform,
Surge immunity test automation system, characterized in that before and after the unit surge immunity test for each port to check whether the normal operation of the intelligent power device. 3. The method of claim 2,
In the test automation main platform,
Surge immunity test automation system, characterized in that it checks whether the intelligent power device is operating normally during the unit surge immunity test for each port. 3. The method of claim 2,
The test automation main platform,
Surge immunity test automation system, characterized in that by applying an input signal corresponding to a predetermined operation to the binary input port of the intelligent power device and receiving an output signal from the binary output port, checking whether the intelligent power device operates normally . 3. The method of claim 2,
The test automation main platform,
Surge immunity test automation system, characterized in that it checks whether the intelligent power device operates normally while transmitting and receiving communication data using the communication port of the intelligent power device. According to claim 1,
a coupling network for transferring a surge applied through the plurality of output terminals to the plurality of ports by connecting some or all of the plurality of output terminals of the switch unit to some or all of the plurality of ports of the intelligent power device, respectively; and
Surge immunity test automation system further comprising a; decoupling circuitry for blocking the surge applied through some or all of the plurality of output terminals of the switch unit to prevent the surge from being transmitted to other devices. According to claim 1,
The test automation main platform,
While sequentially changing the port of the intelligent power device to which the surge is applied by controlling the switch unit,
Surge immunity test automation system, characterized in that the surge immunity test is performed while sequentially changing the waveform of the surge applied to each port according to a predetermined sequence by controlling the surge generator. According to claim 1,
Surge immunity test automation system further comprising; a power supply for supplying power for the operation of the intelligent power device. In the surge immunity test automation device that automatically performs a surge immunity test while sequentially applying a surge to a plurality of ports provided in an intelligent power device,
a surge control module for controlling a surge generator that generates a surge applied to an intelligent power device for a surge immunity test;
a switch control module for controlling a switch unit that switches a path along which the surge travels to change a port of the intelligent power device to which the surge is applied; and
It is configured to include; a normal operation check module for checking whether the intelligent power device is operating normally in response to the application of the surge.
The surge immunity test automation device,
Surge immunity test automation device, characterized in that automatically performing a unit surge immunity test for each port sequentially while controlling the operation environment of the port to which the surge is applied and the intelligent power device according to a predetermined sequence.

Images