KR101952129B1 - Apparatus and Method for testing Intelligent Electronic Device - Google Patents

Apparatus and Method for testing Intelligent Electronic Device Download PDF

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KR101952129B1
KR101952129B1 KR1020150124956A KR20150124956A KR101952129B1 KR 101952129 B1 KR101952129 B1 KR 101952129B1 KR 1020150124956 A KR1020150124956 A KR 1020150124956A KR 20150124956 A KR20150124956 A KR 20150124956A KR 101952129 B1 KR101952129 B1 KR 101952129B1
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Prior art keywords
ied
test
measurement information
data line
ethernet
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KR1020150124956A
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KR20170028501A (en
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홍대흠
박지훈
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현대일렉트릭앤에너지시스템(주)
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/25—Arrangements for indicating or signalling faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/063—Details of electronic electricity meters related to remote communication
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)

Abstract

The present invention relates to an IED test apparatus and method for testing an intelligent electronic device (IED) for monitoring, controlling or protecting a power facility of a substation automation system, wherein the IED test apparatus provides virtual measurement information. IED test server; And share the actual measurement information of the power equipment with the upper system according to the Ethernet-based communication protocol when operated in the first operation mode, and share the virtual measurement information to the Ethernet-based communication protocol when operating in the second operation mode. This includes the IED shared with the parent system.

Figure R1020150124956

Description

IED test device and method {Apparatus and Method for testing Intelligent Electronic Device}

The present invention relates to an IED test apparatus and method.

In general, after the first installation of an Intelligent Electronic Device (ICE) and Supervisory Control And Data Acquisition (SCADA) in the field, the communication between the IEC 61850 server of the IED and the IEC 61850 client of SCADA is abnormal. In order to verify the presence, various tests and status values provided by the IED are tested to ensure that they are well communicated to the SCADA.

In the case of the IEC 61850 server embedded in the existing IED, data attributes corresponding to the measurement information input from various input terminals (CT / PT sensor, Digital Input, RTD, 4-20mA sensor, etc.) attached to the IED are included. To change the value and verify that it is well communicated to the IEC 61850 client, you must connect the equipment directly to each terminal of the IED to apply a physical signal.

You can also enable the values of data attributes that indicate the status of events (gas / temperature alarms, pick-ups, trips, etc.) that occur under certain conditions, and verify that the status is passed to the IEC 61850 client. The physical signal belonging to the specific range that generates is applied to the input terminal.

On the other hand, in the test for determining the integrity of the protection function of the IED, it is necessary to apply a physical signal such as voltage / current, but it is simply required to communicate the communication matters of the IEC 61850 server and the IEC 61850 client (measurement information / Current transformer (CT), voltage transformer (PT), digital input terminal (DI), RTD temperature sensor terminal, 4-20mA sensor, etc. to check whether the status information is normally transmitted, reports of IEC 61850, GOOSE Msg. The application of electrical signals by connecting equipment directly to the various terminals of the system not only requires considerable work time, but also requires multiple equipment to apply electrical signals to the input terminals of the IED.

If you have a simulated test that allows you to change the value of a data attribute that represents the measurement / status information of an IEC 61850 server mounted on the IED without actually applying a physical electrical signal to the various terminals of the IED, Work time can be reduced in various places, including IEC 61850 communication functional tests and training of engineering methods between IEC 61850 servers and clients.

Republic of Korea Patent Application Publication No. 10-2009-0058868 (Invention: Substation Automation System Report Communication Test Apparatus And Method)

An object of the present invention is to provide an IED test apparatus and method that can determine the health of the communication function of the IED using the virtual measurement information.

An IED test apparatus according to an embodiment of the present invention includes an IED test server for providing virtual measurement information; And share the actual measurement information of the power equipment with the upper system according to the Ethernet-based communication protocol when operated in the first operation mode, and share the virtual measurement information to the Ethernet-based communication protocol when operating in the second operation mode. This includes the IED shared with the parent system.

In one embodiment, the IED input and output unit for receiving and providing actual measurement information of the power equipment; A monitoring control unit which controls and monitors the actual measurement information and the virtual measurement information; A dual port memory for storing a result value of the monitoring controller; And when operating in a first operation mode, transmits actual measurement information of the power equipment to a higher system according to an Ethernet-based communication protocol, and when operated in a second operation mode, transmits the virtual measurement information to an Ethernet-based communication protocol. Accordingly includes a communication unit for transmitting to the upper system.

In an embodiment, the communication unit may include: a test processor configured to provide a processing signal corresponding to a test request signal and a test end signal provided from the IED test server; A MUX operated in the first operation mode or the second operation mode according to the processing signal to activate or deactivate a first data line or a second data line; And a communication server configured to transmit actual measurement information or virtual measurement information provided from the first data line or the second data line to a higher system according to an Ethernet-based communication protocol.

In one embodiment, the first data line is connected between the MUX and the dual port memory.

In one embodiment, the second data line is connected between the MUX and the test processor.

An IED test method according to an embodiment of the present invention comprises the steps of providing a test request signal in the IED test server; Transmitting a test start command from the test processor to the supervisory control unit; Controlling the display device in the input / output unit 210 to display a test operation by the monitoring controller; Blocking the first data line coupled between the dual port memory and the MUX and controlling the operation of the MUX to activate a second data line coupled between the shared memory and the MUX; And transmitting the virtual measurement information provided by the IED test server to a higher system according to an Ethernet-based communication protocol.

In one embodiment, if a test end signal is transmitted from the IED test server to the IED, transmitting a test end command from the test processor to a monitoring controller; Controlling the display device to display a test end by the monitor controller; Controlling the operation of the MUX to activate the first data line and deactivate the second data line; And transmitting the actual measurement information input to the input / output unit to the upper system according to an Ethernet based communication protocol.

Using the IED test apparatus and method according to an embodiment of the present invention, the actual measurement information (temperature, voltage, current, digital input, etc.) or a specific event (gas set concentration exceeded alarm, delivered by the IED to SCADA or other IED) When you want to change the status information of set temperature exceeded alarm, pick-up, trip, etc., prepare several devices according to the input terminal type, and connect each terminal of the IED and the terminal of the device to receive the actual physical signal. There is an advantage that the problem to be authorized can be solved.

1 is a block diagram illustrating an IED test apparatus according to an embodiment of the present invention.
2 is a flowchart illustrating an IED test method according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. However, in describing the preferred embodiment of the present invention in detail, when it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions.

In addition, throughout the specification, when a part is 'connected' to another part, it is not only 'directly connected' but also 'indirectly connected' with another element in between. Include. In addition, the term 'comprising' of an element means that the element may further include other elements, not to exclude other elements unless specifically stated otherwise.

Hereinafter, an IED test apparatus and method according to an embodiment of the present invention will be described in detail with reference to the drawings.

First, before describing an IED test apparatus and method according to an embodiment of the present invention, an intelligent electronic device (hereinafter referred to as an IED) will be described.

In the field of transmission and distribution systems, the adoption of IED improves automation and remote monitoring functions. IEC 61850 communication, which is applied in the area of transmission and distribution systems, is based on the existing standards of communication networks and systems in substations and communication network and systems for power utility automation). Communication between the IEDs and between the IED and the upper system (SCADA) follows this standard.

In addition, MMS communication is applied to the communication between the upper system and the IED, and GOOSE communication is applied to the communication between the IED and the IED.

1 is a block diagram illustrating an IED test apparatus according to an embodiment of the present invention.

As shown in FIG. 1, an IED test apparatus 100 according to an embodiment of the present invention is an apparatus for testing an IED for monitoring, controlling, or protecting power facilities of a substation. An IED 200 and an IED test server ( 300).

The IED 200 is connected to a system of power equipment such as transformers, buses, lines, and breakers in a substation, and at least one of the IEDs 200 may be installed to correspond to the power equipment. In addition, the IED 200 is operated in the first operation mode or the second operation mode to share the actual measurement information of the power equipment or the virtual measurement information provided from the IED test server 300 with the higher system or the IED. The IED 200 is designed to communicate to share the actual measurement information with the host system in the first operation mode, and to communicate the virtual measurement information to the host system in the second operation mode.

The IED test server 300 performs a function of providing virtual virtual measurement information corresponding to a test request signal, a test end signal, and actual measurement information indicating a test start and end of the IED 200.

More specifically, the IED 200 may include an input / output unit 210, a monitoring control unit 220, a dual port memory 230, and a communication unit 240.

The input / output unit 210 includes an input unit for receiving real measurement information provided from a power facility provided in a power system, and providing the monitoring control unit 220 with an input unit and an output unit for displaying a result value of the monitoring control unit 220 to a user. .

The input unit may include a current transformer, a voltage transformer, an RTD temperature sensor terminal, a digital input terminal, and the like, and the output unit may include a display device including an LED, an LCD, and the like, which display a result value of the monitoring controller 220. Can be.

The monitoring control unit 220 controls and monitors the actual measurement information input from the input / output unit 210 or the virtual measurement information provided from the IED test server 300.

The dual-port memory 230 exchanges and stores information with the monitoring control unit 220 and the communication unit 240. The dual port communication unit 240 may be a memory capable of supporting bidirectional read / write.

When the communication unit 240 is operated in a first operation mode, the communication unit 240 transmits actual measurement information of the power equipment to a higher system according to an Ethernet-based communication protocol. When the communication unit 240 is operated in a second operation mode, the virtual measurement information is transmitted to the Ethernet. Performs the function of transmitting to the upper system according to the base communication protocol.

More specifically, the communication unit 240 includes a test processor 251, a MUX 252, a shared memory (not shown), and a communication server 253.

The test processor 251 provides a processing signal for controlling the MUX 252 as a first operation or a second operation according to whether the test request signal and the test end signal provided from the IED test server 300 are received.

The MUX 252 activates or deactivates the first data line or the second data line as the MUX 252 is operated in the first operation mode or the second operation mode based on the processing signal provided from the test processor 251. do.

The communication server 253 transmits actual measurement information or virtual measurement information provided from the first data line or the second data line to a higher system according to an Ethernet-based communication protocol.

Here, the communication server 253 includes an MMS processor 253a for communicating with a higher system and a GOOSE processor 253b for performing communication between the IED and the IED according to an Ethernet-based communication protocol.

The first data line may be a data line connected between the MUX and the dual port memory, and the second data line may be a data line connected between the MUX and the test processor.

2 is a flowchart illustrating an IED test method according to an embodiment of the present invention.

The IED test method S100 according to an embodiment of the present invention may be performed through the IED test apparatus shown in FIG. 1.

As shown in FIG. 2, the IED test method S100 according to an embodiment of the present invention first provides a test request signal from the IED test server 300 to the IED 200 at step S701, and then a test processor in the IED. 251 transmits a test start command to the supervisory control unit 220 through the dual port memory 230 (S702).

Thereafter, the monitor controller 220 controls the display device in the input / output unit 210 to display the test operation display to the user (S703), and the test processor 251 transmits a test preparation completion signal to the IED test server 300. At the same time, the data line connected between the dual port memory 230 and the MUX 252 is blocked, and the operation of the MUX 252 is controlled to activate the data line connected between the shared memory and the MUX 252 (S704).

Thereafter, the IED test server 300 provides the virtual measurement information to the IED (S705), and the provided virtual meter is transmitted to the communication server 253 through the test processor and the MUX 252, the communication server 253 The virtual measurement information is provided to the upper system according to the Ethernet-based communication protocol (S706).

Next, when a test end signal is transmitted from the IED test server 300 to the test processor (S707), the test processor 251 transmits a test end command to the monitoring and control unit 220 through the dual port memory 230 (S708). )do.

Thereafter, the monitor controller 220 controls the display device in the input / output unit 210 to display the test end indication to the user (S709), and the test processor 251 activates the data line between the dual port memory and the MUX 252. In operation S710, the operation of the MUX 252 is controlled to deactivate the data line connected between the shared memory and the MUX 252.

 Subsequently, the actual measurement report input to the input / output unit 210 is transmitted to the communication server 253 through the dual port memory (S711), and the communication server 253 transmits the actual measurement information according to the Ethernet-based communication protocol. It will be provided (S712).

Therefore, using the IED test apparatus and method according to an embodiment of the present invention, the actual measurement information (temperature, voltage, current, digital input, etc.) or a specific event (gas setting concentration) that the IED delivers to the higher system or another IED When trying to change the status information of excess alarm, set temperature exceeded alarm, pick-up, trip, etc., prepare several equipments according to the type of input terminals, and connect each terminal of the IED and the terminals of the equipment to receive the actual physical signal. There is an advantage that it is possible to easily change the measurement information transmitted by the IED to the host system or another IED without the hassle of authorization.

These advantages make it easier to verify whether the IED communicates properly with other products, and helps to secure the competitiveness of the IED products.

For reference, “~ part” disclosed in an embodiment of the present invention may be a computing device, and the computing device may include at least one processing unit and a memory.

Here, the processing unit may include, for example, a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit (ASIC), field programmable gate arrays (FPGA), and the like. It may have a plurality of cores.

The memory may be volatile memory (eg, RAM, etc.), nonvolatile memory (eg, ROM, flash memory, etc.), or a combination thereof.

In addition, the computing device may include additional storage. Storage includes, but is not limited to, magnetic storage, optical storage, and the like.

The storage may store computer readable instructions for implementing one or more embodiments disclosed herein, and other computer readable instructions for implementing operating systems, application programs, and the like. Computer readable instructions stored in the storage may be loaded into the memory for execution by the processing unit.

On the other hand, the computing device may include communication connection (s) to enable communication with other devices (eg, temperature measuring unit, zero point correction unit) via a network. Here, the communication connection (s) may include a modem, a network interface card (NIC), an integrated network interface, a radio frequency transmitter / receiver, an infrared port, a USB connection, or another interface for connecting a computing device to another computing device. . In addition, the communication connection (s) may include a wired connection or a wireless connection.

Each component of the computing device described above may be connected by various interconnections such as a bus (eg, peripheral component interconnect (PCI), USB, firmware (IEEE 1394), optical bus structure, etc.), and a network May be interconnected by

Terms such as "part" as used herein generally refer to a computer-related entity that is hardware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both an application running on a controller and the controller can be a component. One or more components may reside within a thread of processes and / or execution, and the components may be localized on one computer and distributed between two or more computers.

Although the present invention has been described in more detail with reference to Examples, the present invention is not necessarily limited to these Examples, and various modifications can be made without departing from the spirit of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited thereto. The scope of protection of the present invention should be interpreted by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: IED test device
200: IED
210: input and output unit
220: monitoring control unit
230: dual port memory
240: communication unit
251: test processor
252: MUX
253: communication server
253a: MMS processor
253b: GOOSE processor
300: IED test server
E1, E2: Ethernet

Claims (7)

delete An IED test device for testing intelligent electronic devices (IEDs) that monitor, control or protect the power equipment of substation automation systems,
An IED test server providing virtual measurement information; And
When operating in the first operation mode, the actual measurement information of the power equipment is shared with the host system according to the Ethernet-based communication protocol, when operating in the second operation mode, the virtual measurement information to the Ethernet-based communication protocol Including the IED to share with the parent system,
The IED,
An input / output unit configured to receive actual measurement information of the power equipment and provide the same;
A monitoring control unit which controls and monitors the actual measurement information and the virtual measurement information;
A dual port memory for storing a result value of the monitoring controller; And
When operating in the first operation mode, the actual measurement information of the power equipment is transmitted to the upper system according to the Ethernet-based communication protocol, when operating in the second operation mode, the virtual measurement information according to the Ethernet-based communication protocol IED test device including a communication unit for transmitting to the upper system.
The method of claim 2,
The communication unit,
A test processor providing a processing signal corresponding to a test request signal and a test end signal provided by the IED test server;
A MUX operated in the first operation mode or the second operation mode according to the processing signal to activate or deactivate a first data line or a second data line; And
And a communication server configured to transmit actual measurement information or virtual measurement information provided from the first data line or the second data line to a higher system according to an Ethernet-based communication protocol.
The method of claim 3,
The first data line,
An IED test device coupled between the MUX and the dual port memory.
The method of claim 3,
The second data line is
An IED test device coupled between the MUX and the test processor.
Providing a test request signal at the IED test server;
Transmitting a test start command from the test processor to the supervisory control unit;
Controlling the display device in the input / output unit 210 to display a test operation by the monitoring controller;
Blocking the first data line coupled between the dual port memory and the MUX and controlling the operation of the MUX to activate a second data line coupled between the shared memory and the MUX; And
IED test method comprising the step of transmitting the virtual measurement information provided by the IED test server to the upper system according to the Ethernet-based communication protocol.
The method of claim 6,
Transmitting a test end command from the test processor to a monitoring control unit when a test end signal is transmitted from the IED test server to the IED;
Controlling the display device to display the end of the test by the monitoring controller;
Controlling the operation of the MUX to activate the first data line and deactivate the second data line; And
And transmitting the actual measurement information inputted to the input / output unit to the upper system in accordance with an Ethernet-based communication protocol.
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US20080162930A1 (en) 2006-12-28 2008-07-03 Dale Finney Apparatus, methods, and system for role-based access in an intelligent electronic device

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KR101268712B1 (en) * 2011-09-29 2013-05-28 한국전력공사 System and method for detecting power quality abnormal waveform of the electric power distribution system
KR101540959B1 (en) * 2013-11-29 2015-08-03 한국전기연구원 Apparatus For Function Test of Intelligent Electronic Device(IED) In Substation Automation System Based On IEC61850

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US20080162930A1 (en) 2006-12-28 2008-07-03 Dale Finney Apparatus, methods, and system for role-based access in an intelligent electronic device

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