KR20220123987A - HSR-based POWER SYSTEM FAULT RECORDING/MONITORING DIAGNOSTIC APPARATUS AND FAULT RECORDING METHOD THEREOF - Google Patents

Abstract

A HSR-based power system failure recording/monitoring diagnosis device of the present invention may comprise: a first quad box module and a second quad box module connecting at least two HSR ring networks as a process bus network of a power system; an SV processing unit which processes SV packets as instantaneous values of terminals connected to the HSR ring networks received from the first quad box module and the second quad box module; a GOOSE processing unit which processes a GOOSE packet as a mutual communication packet of terminals connected to the HSR ring networks received from the first quad box module and the second quad box module; a failure record generating unit which generates a failure record of a power facility in charge from data described in the SV packet and data described in the GOOSE packet; and a station bus interface which transmits the generated failure record to an external station bus client. According to the present invention, costs required for building and maintaining a digital substation system can be reduced.

Description

HSR-based power system fault recording/monitoring diagnosis device and fault recording method

The present invention relates to a power system fault recording/monitoring diagnosis apparatus capable of performing fault recording and network monitoring diagnosis for a digital substation system to which a high-availability seamless redundancy (HSR)-based process bus is applied, and a fault recording method performed therein. .

Recently, along with the development of IT and information and communication technologies, the industry is also rapidly becoming digitized, and accordingly, a new concept of communication technology has been developed to secure connectivity between networks and facilitate processing of increasing amounts of data between each network. The need is on the rise.

IEC 61850 is an international standard for 'communication network and system for substation automation' and is widely applied worldwide. We are constructing and operating an infrastructure digital substation.

IEC 61850 proposes two networks called a station bus and a process bus, and it can be said that a full type digital substation is applied to both networks. However, the current domestic digital substation has built a half-type digital substation using only a station bus among the two networks suggested by IEC 61850. Currently, when a problem occurs in this half-type digital substation, two functions are applied to record the problem and enable future analysis.

First, when a failure occurs in the power system, a function of recording voltage and current information of the power system (hereinafter referred to as a 'failure recording function') is applied. When operating the power system, faults may occur in power system components such as transmission lines, busbars, and transformers. To this end, in 154kV digital substations, the '154kV busbar protection panel' additionally performs the 'fault recording function' in addition to the basic busbar protection function.

Next, communication packets sent and received through the station bus network are stored in normal times, and when an abnormal communication packet occurs in the station bus network, it is displayed, and the function to extract and display communication packets within the range specified by the user is provided. A network monitoring and diagnosis device (hereinafter referred to as a 'station bus network monitoring and diagnosis device') is applied.

When operating a digital substation to which a network such as a station bus is applied, problems may occur in the entire network due to problems with specific devices connected to the network. It is possible. In this case, since the target of analysis is a network, the related information can be said to be a communication packet transmitted and received by each device connected to the network. Therefore, the 'Station Bus Network Monitoring and Diagnosis Device' is connected to the station bus network and operated.

In Korea, half-type digital substations are operated by applying the above 'fault recording function' and 'station bus network monitoring and diagnosis device', but there are still points to be improved.

First, in the case of 'failure record function', there is a problem that the voltage and current information of 22.9kV class cannot be saved as a fault record because the 154kV busbar protection panel executes the function. There is a limitation that only the current/voltage signal of CT/PT can be recorded.

In addition, the world has started to introduce a full-type digital substation that applies not only IEC 61850 station bus but also process bus, and Korea is expected to introduce this full type digital substation in the near future. Another network called a separate process bus is added to the digital substation, and this process bus network is completely different from the station bus network in structure and transmitted/received information. A 'process bus network monitoring and diagnosis device' different from the 'diagnostic device' may be required separately.

Republic of Korea Publication No. 10-2018-0028291

An object of the present invention is to provide an HSR-based power system fault recording/monitoring diagnosis apparatus and fault recording method that can support digitization of various methods/conditions in the power system, particularly in the substation operation system.

In particular, in constructing a digital substation, it is intended to provide a power system fault recording/monitoring diagnosis device that can be configured by dividing the HSR network according to the installation location or voltage class of individual devices, and a fault recording method performed therein.

An HSR-based power system fault recording/monitoring and diagnosis apparatus according to an aspect of the present invention comprises: a first quadbox module connecting at least two HSR ring networks as a process bus network of a power system, and a second quadbox module; an SV processing unit for processing SV packets as instantaneous values of terminals connected to the HSR ring networks received from the first quadbox module and the second quadbox module; a GOOSE processing unit for processing GOOSE packets as mutual communication packets between terminals connected to the HSR ring networks received from the first quadbox module and the second quadbox module; a fault record generation unit for generating a fault record of a power facility in charge from the data described in the SV packet and the data described in the GOOSE packet; and a station bus interface for transmitting the generated fault record to an external station bus client.

Here, the fault record generation unit extracts voltage and current information from the received SV packet, calculates the magnitudes of voltage, current, and power using the extracted information, and based on the calculation result, according to a user-specified standard. A fault record can be created.

Here, the fault record generation unit may extract trip information from the received GOOSE packet and generate a fault record including voltage, current, and trip information received for a predetermined time based on the extracted information.

Here, the station bus interface may transmit the fault record generated and stored by the fault record generation unit to the IEC 61850 Client using a file transfer function.

Here, a user interface unit providing a user interface function for process bus management may be further included.

Here, the SV packet or the described data is stored, the SV packet or data that meets the user-specified condition is extracted and provided, and the source of the SV packet is associated with the HSR ring network and further includes an SV storage/management unit to manage it. can do.

Here, the GOOSE packet or written data is stored, the GOOSE packet or data that meets the conditions specified by the user is extracted and provided, and the source of the SV packet is associated with the HSR ring network and further includes a GOOSE storage/management unit can do.

Here, a bus information recording unit for recording information indicating the hierarchy of the station bus network and the process bus network may be further included.

A fault recording method in an HSR-based power system fault recording/monitoring and diagnosis apparatus according to another aspect of the present invention comprises the steps of: receiving a voltage/current signal in an SV packet; receiving a digital signal in a GOOSE packet; checking whether a fault record is currently being generated; if the failure record is not being generated, checking whether the condition for generating the failure record is not present; if it is a condition for generating a fault record, starting a fault record counter; recording the SV signal including the current signal in a fault recording buffer; recording a GOOSE signal including a trip signal in a fault recording buffer; incrementing the fault record counter and checking whether a fault record time has been reached; and when the failure record time is reached, terminating the failure record generation.

Here, in the step of recording the SV signal in the failure recording buffer, voltage and current information is extracted from the received SV packet, and the magnitudes of voltage, current and power are calculated using the extracted information, and based on the calculation result, In this way, fault records can be created according to user-specified criteria.

Here, in the step of recording the GOOSE signal in the fault recording buffer, the trip information is extracted from the received GOOSE packet, and the fault record is recorded including the voltage, current, and trip information received for a certain period of time based on the extracted information. can create

If the HSR-based power system fault recording/monitoring diagnosis apparatus and/or fault recording method according to the spirit of the present invention having the above configuration is implemented, there is an advantage that can support the digitization of various methods/conditions in the substation operating system. Specifically, it has the advantage of providing the 'storage of fault records' and 'network monitoring function' to the operator while providing the HSR ring network connection function required in the digital transformation system to which the HSR-based process bus network is applied.

The HSR-based power system fault recording/monitoring diagnosis device and/or fault recording method of the present invention provides the flexibility to divide and configure the HSR network according to the installation location or voltage class of individual devices in constructing a digital substation. there is an advantage to

The HSR-based power system fault recording/monitoring diagnosis apparatus and/or fault recording method of the present invention has the advantage of reducing the cost of constructing and maintaining a digital substation system by reducing the number of devices in the system.

1 is a connection structure diagram showing the basic configuration of an HSR ring network.
2 is a block diagram illustrating a power system fault recording and monitoring diagnosis system according to the spirit of the present invention.
FIG. 3 is a flowchart illustrating an embodiment of a failure recording method performed by the failure recording generating unit of FIG. 2 .

In describing the present invention, terms such as first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

When a component is referred to as being connected or connected to another component, it may be directly connected or connected to the other component, but it can be understood that other components may exist in between. .

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In this specification, the terms include or include are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and includes one or more other features or numbers, It may be understood that the possibility of the presence or addition of steps, operations, components, parts, or combinations thereof is not precluded in advance.

In addition, shapes and sizes of elements in the drawings may be exaggerated for clearer description.

In a half-type digital substation where only station bus is applied, a separate device that performs 'fault recording function' receives voltage/current as electrical signals from CT/PT through copper wire, and 'Station Bus Network Monitoring and Diagnosis Device' is a station bus It receives communication packets through the network. Since voltage/current signals and communication packets are completely different types of signals in half-type digital substations, it is appropriate that the 'fault recording function' performing device and the 'station bus network monitoring and diagnosis device' be composed of separate devices.

However, in a full-type digital substation to which a process bus is applied, the voltage/current signal is not an electrical signal coming through CT/PT, but a digitized signal through MU (Merging Unit) or NCIT (Non-Conventional Instrument Transformer). Unlike the half-type digital substation where only the station bus is applied, the 'fault recording function' device also receives voltage/current signals through the network. Therefore, in a full-type digital substation to which a process bus is applied, there is a practical benefit of integrating the 'fault recording function' performing device and the 'process bus network monitoring and diagnosis device' into one device.

In order to construct a full-type digital substation to which the process bus is applied, the network method of the process bus must be selected first. One of the applicable network schemes for duplicating the process bus network is high-availability seamless redundancy (HSR), and the HSR has a ring-type network topology as shown in FIG. 1 .

1 is a connection structure diagram showing the basic configuration of an HSR ring network.

In FIG. 1, a QuadBox (Quadruple Port Device) is a device having four communication ports, and serves to connect two HSR ring networks. Considering the case of applying this HSR ring network to a process bus, the devices connected to this network are IEDs (Intelligent Electronic Devices) such as protective relays and control devices, and electrical signals such as voltage and current are converted into digital signals. These can be called MUs (Merging Units).

Here, the signal digitized through the MU is referred to as SV (Sampled Values). Considering the structure of a 154kV substation in Korea, it is expected that the number of IEDs and MUs required for a full type digital substation including a process bus will be quite large. Therefore, it is unlikely that all IEDs and MUs will be configured as one HSR ring network, and it is highly likely that the HSR network will be divided according to the installation location or voltage class of the device. Since there is no fault record and monitoring diagnosis system, the present invention also proposes a solution to this problem. The QuadBox shown has a high need as the most optimal device for configuring a process bus network.

The power system failure recording and monitoring and diagnosis system according to the spirit of the present invention has a configuration of two quad boxes as shown in FIG. 1 and constitutes a local network detection and diagnosis apparatus for a process bus network according to IEC 61850. Accordingly, it is possible to construct an effective full-type digital substation together with a network device according to the prior art for a station bus network provided separately.

However, in the case of a small-scale digital substation for a small-scale substation system, it may be inefficient/inefficient to provide a separate network device for a station bus.

On the other hand, even in the case of a large-scale digital substation having a separate network device for the station bus, some of the functions of the network device for the station bus need to be doubled for safety.

Among the functions of the network device for the station bus, the fault recording function is the most important function for safety and substation management. The local network detection and diagnosis apparatus for a process bus according to the spirit of the present invention performs the above fault recording function together. In the case of the system, the most important fault recording function for safety and substation management is performed independently of the network device for the station bus. In the latter case, fault logging can be performed for a kind of cross check. Alternatively, the network for the station bus may be provided for a larger scope (higher management) and create a fault record for the local station network.

2 is a block diagram illustrating a power system fault recording and monitoring diagnosis system according to the spirit of the present invention. The illustrated power system fault recording and monitoring diagnosis system may have a form in which two quad box modules and a fault recording device constituting the process bus network are integrated into one as described above.

Since the aforementioned QuadBox connects two ring networks, it is possible to capture all communication packets transmitted and received in each ring network. Considering the role and installation location of this QuadBox, it is possible to perform the role of a network monitoring and diagnostic device of the process bus. That is, the present invention proposes a device that performs the functions required for operation of a substation while performing the function of the QuadBox, where the functions necessary for operation of the substation are 'fault recording function' and 'network monitoring and diagnosis function'.

According to the idea of the present invention, if a device that performs the function of a QuadBox to connect two HSR ring networks and simultaneously performs a 'fault recording function' and a 'network monitoring and diagnosis function' is implemented, an HSR-based process It is possible to secure the necessary 'fault recording function' and 'process bus network monitoring and diagnosis function' in substations to which the bus network is applied, while eliminating the redundancy of devices and suppressing the increase in the number of process bus network nodes.

The power system failure recording/monitoring and diagnosis apparatus shown includes a first quad box module 110; a second quadbox module 120 connecting the first quadbox and at least two HSR ring networks as a process bus network of the power system; SV processing unit for processing SV (SampledValue) packets as instantaneous values of terminals (power measuring devices) connected to the HSR ring networks received from the first quadbox module 110 and the second quadbox module 120 ( 130); GOOSE processing unit 140 for processing GOOSE packets as mutual communication packets between terminals connected to the HSR ring networks received from the first quad box module 110 and the second quad box module 120; a failure record generation unit 170 for generating a failure record of the power equipment in charge from the data described in the SV (SampledValue) packet and the data described in the GOOSE packet; and a station bus interface 190 for transmitting the generated fault record to an external station bus client.

The illustrated power system failure recording/monitoring and diagnosis apparatus includes a user interface unit 180 providing a user interface function for managing the process bus; an SV storage/management unit 150 that stores the SV packet or the described data, extracts and provides the SV packet or data that meets a user-specified condition, and manages the source of the SV packet in association with the HSR ring network; and a GOOSE storage/management unit 160 that stores the GOOSE packet or recorded data, extracts and provides GOOSE packets or data that meet the conditions specified by the user, and manages the source of the SV packet in association with the HSR ring network It may further include one or more.

The device proposed in the present invention having the configuration of FIG. 2 is a composite device for a full-type digital transformation system to which an HSR-based process bus network is applied. It can be divided into fault recording technology in the full type digital substation system to which the process bus network of

The communication function of the HSR method may be applied in a manner of providing a total of 8 ports by embedding two quad box modules, 4 ports for HSR ring network connection for each module.

The fault recording technique in the full type digital transformation system can be implemented in a way that performs the function of IEC 61850 Server together with the function of IEC 61850 process bus IED.

In other words, as an IEC 61850 process bus IED, it receives SV, extracts voltage and current information from SV, calculates the magnitude of voltage, current, and power using the extracted information, Create a fault record according to the standard, extract GOOSE (Generic Object-Oriented Substation Event) reception and trip information, and store the fault record including voltage, current, and trip information received for a certain period of time based on the extracted information. In addition to creating, as an IEC 61850 Server, it can perform the function of sending the stored fault record to the IEC 61850 client using the station bus network I/F function and the file transfer function.

Next, as a process bus network monitoring and diagnosis technology, it stores all SV and other communication data received through the process bus network connection port, and identifies and displays the communication status of each device such as process bus IED and MU connected to the same process bus network. can

Additionally, a user interface function for the manager of the distribution system may be provided. Specifically, device registration management such as process bus IED and MU connected to the same process bus network, SV real-time status history management transmitted by each MU, , unregistered SV detection and display, GOOSE real-time status history management transmitted by each IED, and unregistered GOOSE terminal (or message) can be detected and displayed.

In general, the fault record in the power system is generated using data transmitted through the station bus network or is generated by a separate fault record generating device at each site, and the generated fault record is stored in the server (data generator) on the station bus network. It is sent to the client (data collector).

Meanwhile. In the present invention, apart from the fault records generated on the general station bus network, the fault records are generated using measurement data of terminals (Servers meaning data generators) on the process bus. Fault records generated on the process bus can also be transmitted to clients on the bus network.

The fault record generation unit 170 generates a fault record using the process bus network according to the spirit of the present invention. For this, it receives an SV packet, extracts voltage and current information from the received SV packet, and The information can be used to calculate the magnitude of voltage, current, and power, and based on the calculation result, a fault record can be created according to a user-specified standard. Similarly, the fault record generation unit receives a Generic Object-Oriented Substation Event (GOOSE) packet, extracts information such as trip information from the received packet, and receives voltage, current and trip for a predetermined time based on the extracted information. It is possible to create a fault record including information, etc.

As can be seen in FIG. 2 , the power system proposed by the present invention through the first quadbox module 110 and the second quadbox module 120 identified as #1 and #2 as a built-in HSR quadbox module. The fault recording/monitoring and diagnosis apparatus may be connected to a process bus network using the HSR protocol, and may provide a function of connecting two HSR ring networks.

Sequentially, the monitoring diagnosis apparatus proposed in the spirit of the present invention receives the SV transmitted by the MU connected to the process bus network through the HSR quadbox modules 110 and 120 . The SV received through the HSR quadbox modules 110 and 120 is transferred to the SV processing unit 130 .

The SV processing unit 130 transmits the raw SV (packet) to the SV storage/management unit 150 to store the received SV. In addition, the SV processing unit 130 extracts voltage and current information from the SV and transmits it to the fault record generation unit 170 , and the fault record generation unit 170 stores the information and, if necessary, fails. The role of creating a record can be followed.

In addition, the proposed monitoring and diagnosis device receives a GOOSE message (which can be viewed as a kind of packet) transmitted by the IED in addition to the SV transmitted by the MU connected to the process bus network through the HSR quad box modules 110 and 120, and the HSR The GOOSE message received through the quad box modules 110 and 120 is transferred to the GOOSE processing unit 140 . Here, the GOOSE processing unit 140 may transmit the GOOSE message to the GOOSE storage/management unit 160 to store the received GOOSE message.

In addition, the GOOSE processing unit 140 extracts the trip information included in the GOOSE message and transmits it to the fault record generation unit 170 . The failure record generation unit 170 may use this information as a reference for generating the failure record or, if necessary, output the failure record including the corresponding information when generating the failure record.

The illustrated SV storage/management unit 150 stores all the received SVs, and when the user transmits a command by specifying conditions such as the period and transmission MU for which the user wants to acquire SVs through the user interface unit 180, the SV The storage/management unit 150 may receive this command, extract an SV that meets a condition specified by the user, and display it through the user interface unit 180 . In addition, when receiving MU and SV registration information input by the user during device operation, and receiving SV transmitted by a device other than the registered MU based on this, it is classified as unregistered SV and displayed through the user interface unit 180. have.

The GOOSE storage/management unit 160 stores all the received GOOSEs, and transmits a command by specifying conditions such as the period and transmission IED for which the user wants to acquire the GOOSE message through the user interface unit 180. A GOOSE message matching the condition may be extracted and displayed through the user interface unit 180 . In addition, when receiving the IED and GOOSE registration information entered by the user during device operation, and based on this, if a GOOSE message sent by a device other than the registered IED is received, it is classified as unregistered GOOSE and displayed through the user interface unit 180. can

The illustrated monitoring and diagnosis apparatus possesses the station bus interface 190, and while operating as an IEC 61850 server, as a data collector, it can transmit the fault record to the station bus client by using the file transfer function according to the request of the client.

The illustrated SV storage/management unit 150 may provide a function of detecting unregistered SVs. That is, when operating the proposed monitoring diagnostic device, the MUs connected to the same HSR ring network as the monitoring diagnostic device and all SVs defined to be transmitted by those MUs are registered, and the following information is set and recorded can be

- MU MAC address

- SV address (SV Control Block name)

- SV Identifier (svID)

Therefore, all normal SVs must match one of the recorded information sets, otherwise it can be determined as an abnormal SV.

The illustrated SV storage/management unit 150 receives and manages the information for SV registration from the user interface unit 180 during operation. And when SV information is received from the SV processing unit 130, the information of the SV is compared with the registered information to check whether the SV is normally registered. It can be indicated through (180).

The illustrated GOOSE storage/management unit 160 may provide a function of detecting unregistered GOOSEs. The registration and non-registration detection function is almost similar to the case of SV, and an example of the information set related to GOOSE registration is as follows.

- MAC address of IED

- GOOSE address (GOOSE Control Block name)

- GOOSE Identifier (goID)

The management and detection functions of the registered/unregistered SV/GOOSE terminals (MU, IED) of the SV storage/management unit 150 and/or the GOOSE storage/management unit 160 described above include the hierarchy of the station bus network and the process bus network and It is advantageous to provide for That is, in the hierarchy, it is possible to check whether the monitoring and diagnosis apparatus belongs to the station bus network and/or the process bus network of the layer managed by itself.

In order to support the above-described SV management function, the monitoring and diagnosis apparatus of the present invention may further include a bus information recording unit (not shown) for recording information indicating the hierarchy of the station bus network and the process bus network. In this case, the administrator can designate a range for generating a fault record in the hierarchy of the station bus network and the process bus network through the user interface unit 180 . This makes it possible to immediately reflect on the function of the monitoring and diagnosis device when the hierarchy is changed in policy.

According to the implementation, the failure record generation unit 170 receives the voltage and current signals from the SV processing unit 130 and digital information such as a trip included in the GOOSE from the 'GOOSE processing unit', and then malfunctions these information. You can decide whether to create a record or not.

3 is a flowchart illustrating an embodiment of a failure recording method performed by the failure record generation unit 170 .

The illustrated fault recording method includes: receiving a voltage/current signal as an SV packet from the SV processing unit 110 (S110); Receiving a digital signal as a GOOSE packet from the GOOSE processing unit 120 (S125); Checking whether the current fault record is being generated (S130); If the failure record is not being generated, checking whether the condition for generating the failure record is present (S135); If it is a condition for generating a fault record (S140), starting a fault record counter (S145); writing the SV signal including the current signal to the fault recording buffer (S150, S155); recording the GOOSE signal including the trip signal in the failure recording buffer (S160); incrementing the fault record counter (S170), and confirming whether the fault record time has been reached (S175); and when the failure record time is reached, terminating the failure record generation (S178).

The condition for generating the failure record in step S135 may be the same as the line failure determination of the prior art, and depending on implementation, may be performed by inputting the failure determination determined by the server from an external server.

According to the flowchart shown, once it is determined whether a fault record is currently being generated (S130), and if the fault record is being generated, the process immediately moves to step S150 and stores voltage, current, and digital information in the fault record buffer. If the fault record is not being created, it is judged whether the condition for creating a new fault record is satisfied (S135). The storage process can be started (S150, S155, S160).

After saving in the buffer, the fault record count is incremented (S170), and then, it is checked whether the fault record count reaches the fault record time and it is time to end the generation (S175), and if so, the fault record such as converting to a file A generation end process is performed (S178). If the fault record count has not yet reached the fault record time, it may return to the beginning ( S110 ) and repeat the process of receiving the voltage and current signals from the SV processing unit 110 .

Those skilled in the art to which the present invention pertains should understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof, so the embodiments described above are illustrative in all respects and not restrictive. only do The scope of the present invention is indicated by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. .

110: first quad box module 120: second quad box module
130: SV processing unit 140: GOOSE processing unit
150: SV storage/management unit 160: GOOSE storage/management unit
170: fault record generation unit 180: user interface unit
190: station bus interface

Claims (11)

a first quadbox module and a second quadbox module for connecting at least two HSR ring networks as a process bus network of the power system;
an SV processing unit for processing SV packets as instantaneous values of terminals connected to the HSR ring networks received from the first quadbox module and the second quadbox module;
a GOOSE processing unit for processing GOOSE packets as mutual communication packets between terminals connected to the HSR ring networks received from the first quadbox module and the second quadbox module;
a fault record generation unit for generating a fault record of a power facility in charge from the data described in the SV packet and the data described in the GOOSE packet; and
A station bus interface that transmits the generated fault record to an external station bus client
A power system fault recording / monitoring and diagnosis device comprising a.
According to claim 1,
The fault record generation unit,
Power system failure that extracts voltage and current information from the received SV packet, calculates the magnitude of voltage, current, and power using the extracted information, and creates a fault record according to a user-specified standard based on the calculation result Recording/monitoring diagnostic device.
According to claim 1,
The fault record generation unit,
A power system fault record/monitoring diagnosis device that extracts trip information from the received GOOSE packet and creates a fault record including voltage, current, and trip information received for a certain period of time based on the extracted information.
According to claim 1,
The station bus interface comprises:
A power system fault record/monitoring diagnosis device that transmits the fault record created and stored by the fault record generator to the IEC 61850 Client using the file transfer function.
According to claim 1,
User interface unit providing user interface functions for process bus management
Power system failure recording / monitoring and diagnosis device further comprising a.
According to claim 1,
SV storage/management unit that stores the SV packet or written data, extracts and provides SV packet or data that meets a user-specified condition, and manages the source of the SV packet in association with the HSR ring network
Power system failure recording / monitoring and diagnosis device further comprising a.
According to claim 1,
store the GOOSE packet or the written data;
Extracts and provides GOOSE packets or data that meet the conditions specified by the user.
GOOSE storage/management unit that manages the source of the SV packet in association with the HSR ring network
Power system failure recording / monitoring and diagnosis device further comprising a.
According to claim 1,
A bus information recording unit for recording information indicating the hierarchy of the station bus network and the process bus network
Power system failure recording / monitoring and diagnosis device further comprising a.
receiving a voltage/current signal in an SV packet;
receiving a digital signal in a GOOSE packet;
checking whether a fault record is currently being generated;
if the failure record is not being generated, checking whether the condition for generating the failure record is not present;
if it is a condition for generating a fault record, starting a fault record counter;
recording the SV signal including the current signal in a fault recording buffer;
recording a GOOSE signal including a trip signal in a fault recording buffer;
incrementing the fault record counter and checking whether a fault record time has been reached; and
If the failure record time is reached, terminating the failure record generation.
A fault recording method comprising a.
10. The method of claim 9,
In the step of recording the SV signal in the failure recording buffer,
A fault record method that extracts voltage and current information from the received SV packet, calculates the magnitude of voltage, current, and power using the extracted information, and creates a fault record according to a user-specified standard based on the calculation result .
10. The method of claim 9,
In the step of recording the GOOSE signal in the failure recording buffer,
A fault record method that extracts trip information from the received GOOSE packet and creates a fault record including voltage, current, and trip information received for a certain period of time based on the extracted information.

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