KR20150011253A - Vbe cubicle of hvdc system - Google Patents

Vbe cubicle of hvdc system Download PDF

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Publication number
KR20150011253A
KR20150011253A KR20130086298A KR20130086298A KR20150011253A KR 20150011253 A KR20150011253 A KR 20150011253A KR 20130086298 A KR20130086298 A KR 20130086298A KR 20130086298 A KR20130086298 A KR 20130086298A KR 20150011253 A KR20150011253 A KR 20150011253A
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KR
South Korea
Prior art keywords
optical
optical cable
output board
loss
vbe
Prior art date
Application number
KR20130086298A
Other languages
Korean (ko)
Inventor
이혜연
Original Assignee
엘에스산전 주식회사
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Application filed by 엘에스산전 주식회사 filed Critical 엘에스산전 주식회사
Priority to KR20130086298A priority Critical patent/KR20150011253A/en
Publication of KR20150011253A publication Critical patent/KR20150011253A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/12—Arrangements for exhibiting specific transmission characteristics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/22—Cables including at least one electrical conductor together with optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

The disclosure relates to a valve base electronics (VBE) cubicle of a high voltage direct current (HVDC) system which includes a light source and a measurement unit for measuring intensity of received light provided on a light input/output board in order to measure an optical loss of a plurality of optical cables connected to the light input/output board. To this end, a VBE cubicle of an HVDC system including a light input/output board according to the disclosure includes: a light source formed on the light input/output board to output an optical signal to at least one optical cable connected to the light input/output board when a preset mode is selected; a measurement unit formed on the light input/output board to receive the optical signal transmitted through the optical cable to measure light intensity of the received optical signal; a control unit to calculate a light loss of the optical cable based on the measured light intensity; and a display to display a preset unique number of the optical cable and the calculated light loss of the optical cable corresponding to the optical cable.

Description

The VBE cubicle of the HVDC system {VBE CUBICLE OF HVDC SYSTEM}

In particular, the present invention relates to a VBE cubicle of a HVDC system, and more particularly, to a light input / output board of a HVDC system and a measurement unit for measuring a received light intensity, thereby to reduce optical loss of a plurality of optical cables connected to the optical input / RTI ID = 0.0 > HVDC < / RTI >

Generally, a high voltage direct current (HVDC) system is a system that converts AC power generated by a power plant to DC and then converts the AC power from AC to AC to supply power to the load. In addition, the HVDC transmission method enables efficient and economical power transmission through voltage boosting, which is an advantage of AC transmission, and overcomes various disadvantages of AC transmission.

The VBE (Valve Base Electronics), which is a key element of the HVDC system, is a facility that serves as an intermediary for information transfer between a thyristor and a control & protection (C & P).

These VBEs are connected to the thyristor valve through a plurality of optical cables, and transmit signals to the C & P through the optical cable as needed.

In order to examine the performance of the optical cable, a separate light source and a loss measuring device are used to connect the respective optical cables to the corresponding optical cable. It is necessary to measure the optical loss and it takes a lot of time to measure the optical loss.

Korean Patent Application No. 10-2004-0087627

An object of the present invention is to provide a HVDC system in which a light source is mounted on an optical input / output board of a HVDC system and a measurement unit for measuring a received light intensity is provided to measure a light loss of a plurality of optical cables connected to the optical input / .

It is another object of the present invention to provide a VBE cubicle of an HVDC system that displays the unique number of a plurality of optical cables through the display (or HMI) and the optical loss value of the measured optical cable.

A VBE cubicle of an HVDC system according to an embodiment of the present invention is a VBE cubicle of an HVDC system including an optical input / output board, and is formed on the optical input / output board. When a preset mode is selected, A light source for transmitting an optical signal to one or more optical cables connected to the input / output board; A measuring unit formed on the optical input / output board, for receiving an optical signal transmitted through the at least one optical cable and measuring an optical intensity of the received optical signal; A control unit for calculating an optical loss of the optical cable based on the measured light intensity; And a display unit for displaying a predetermined unique number of the at least one optical cable and an optical loss of the calculated optical cable corresponding to the optical cable.

As an example related to the present specification, the preset mode may be an optical cable loss mode in maintenance mode or a function confirmation mode after initial installation.

As an example related to the present specification, the control unit may generate an alarm signal and display it on the display unit when the optical loss of the calculated optical cable exceeds a predetermined range.

As an example related to the present specification, the control unit controls the display related to the optical cable exceeding the predetermined range displayed on the display unit to be connected to another normal optical cable and the other optical cable, if the optical loss of the calculated optical cable exceeds a predetermined range. It can be displayed differently from the related display.

An optical input / output board of a VBE cubicle according to an embodiment of the present invention is an optical input / output board of a VBE cubicle, comprising: an optical cable connection terminal for connecting a plurality of optical cables; A light source sequentially transmitting optical signals to a plurality of optical cables connected to the plurality of optical cable connection terminals when a mode of optical cable loss preset in the maintenance mode or a function confirmation mode after the initial installation of the VBE cubicle is selected; And a measurement unit for receiving the optical signals transmitted through the plurality of optical cables and measuring the optical intensity of the received optical signals, respectively.

The VBE cubicle of the HVDC system according to the embodiment of the present invention includes a light source and a measurement unit for measuring the received light intensity on the optical input / output board of the HVDC system, so that the optical loss of a plurality of optical cables connected to the optical input / It is possible to shorten the optical loss measurement time of the optical cable.

Further, the VBE cubicle of the HVDC system according to the embodiment of the present invention displays the unique number of the plurality of optical cables and the optical loss value of the measured optical cable through the display unit (or the HMI) And confirm.

FIG. 1 is a block diagram illustrating a configuration of a VBE cubicle of an HVDC system according to an embodiment of the present invention. Referring to FIG.
2 is a flowchart illustrating a method of controlling a VBE cubicle of an HVDC system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

1 is a block diagram showing a configuration of a VBE cubicle 10 of an HVDC system according to an embodiment of the present invention.

1, the VBE cubicle 10 includes an optical input / output board 100, a control unit 200, a display unit 300, and a storage unit 400. Not all of the components of the VBE cubicle 10 shown in FIG. 1 are required, and the VBE cubicle 10 may be implemented by more components than the components shown in FIG. 1, The VBE cubicle 10 may also be implemented.

The optical input / output board 100 includes a light source 110 and a measurement unit 120, as shown in FIG. Not all of the components of the optical input / output board 100 shown in FIG. 1 are essential components, and the optical input / output board 100 may be implemented by more components than the components shown in FIG. 1 And the optical input / output board 100 may be implemented by fewer components.

The optical input / output board 100 may further include a plurality of optical cable connection terminals (not shown).

Each of the optical cable connection terminals is connected to a respective optical cable (not shown) connected to a thyristor valve (not shown). Here, the optical cable connected to the thyristor valve transmits an ignition signal to the thyristor valve and receives status information of the thyristor valve transmitted from the thyristor valve in response to the transmitted ignition signal.

Also, the optical cable connection terminal is connected to the C & P (not shown) through an additional optical cable to transmit and receive a signal.

The light source 110 is formed on one side (or region) of the optical input / output board 100.

Also, the light source 110 operates based on a control signal generated by the control unit 200.

That is, when the preset mode is selected (or operated) under the control of the controller 200, the light source 110 is connected to one or more (or a plurality of) optical cables connected to the optical cable connection terminal , And transmits the optical signal through the optical cable. Here, the predetermined mode may be an optical cable loss mode in maintenance mode, a function confirmation mode after initial installation, and the like.

For example, when the optical cable loss mode set in advance in the maintenance mode is selected by the control of the control unit 200, And sequentially transmits optical signals to a plurality of optical cables connected to the optical cable connection terminal.

In another example, the light source 110 may include one or more optical cables connected to the optical cable connection terminal when the function confirmation mode is selected after the initial installation of the VBE cubicle 10 under the control of the controller 200 (Or transmits) the optical signal sequentially.

The measurement unit 120 is formed on the other side (or another region) of the optical input / output board 100.

In addition, the measurement unit 120 receives an optical signal received through the optical cable after being transmitted from the light source 110, and measures the optical intensity of the received optical signal.

That is, the measurement unit 120 receives an optical signal transmitted through the at least one (or a plurality of) optical cables, and measures the optical intensity of the received optical signal

The controller 200 performs an overall control function of the VBE cubicle 10.

The control unit 200 may calculate the optical loss (or optical loss value) of each optical cable based on the light intensity measured through the measurement unit 120 (or the optical intensity of the optical signal) , Calculation).

In addition, the controller 200 displays the optical loss of the calculated optical cable on the display unit 300. At this time, the controller 200 may display the predetermined number of each optical cable and the optical loss of the optical cable calculated corresponding to each optical cable on the display unit 300 together. Here, the preset unique number of the optical cable may be the position (or the unique number of the thyristor valve) of the thyristor valve to which the optical cable is connected.

In addition, the controller 200 stores a preset unique number of the optical cable and the optical loss of the optical cable calculated corresponding to the optical cable in the storage unit 400.

Also, the control unit 200 determines (or confirms) whether or not the optical loss of the calculated optical cable exceeds a predetermined range.

The control unit 200 may generate an alarm signal and display the alarm signal on the display unit 300 if the optical loss of the optical fiber exceeds the predetermined range as a result of the determination, The display related to the optical cable exceeding the preset range displayed on the display unit can be displayed differently from the display related to other normal optical cables.

In this manner, the VBE cubicle 10 can measure the optical cable loss (or optical loss) without any external device.

When the VBE cubicle 10 transmits an optical signal to the optical cable through the light source 110 when the VBE cubicle 10 operates normally, the VBE cubicle 10 is recognized as a high signal, The optical cable loss measurement can be performed in the optical cable loss mode in the maintenance mode and in the function confirmation mode after the initial installation to prevent malfunction.

The display unit 300 can display various contents such as various menu screens by using the user interface and / or graphical user interface stored in the storage unit 400 under the control of the controller 200. [ Here, the content displayed on the display unit 300 includes various text or image data (including various information data) and a menu screen including data such as an icon, a list menu, and a combo box. Also, the display unit 300 may be a touch screen.

The display unit 300 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) A display, a flexible display, a three-dimensional display, and an e-ink display.

Also, under the control of the control unit 200, the display unit 300 displays the unique number of the optical cable and the optical loss calculated corresponding to the optical cable.

Also, the display unit 300 may be an HMI (Human Machine Interface).

The storage unit 400 stores data and programs necessary for the VBE cubicle 10 to operate.

The storage unit 400 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or A random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM) , And a programmable read-only memory (PROM). In addition, the VBE cubicle 10 may operate in association with the web storage or operate a web storage that performs a storage function of the storage unit 400 on the Internet.

The storage unit 400 stores the unique number of the optical cable and the optical loss calculated corresponding to the optical cable under the control of the controller 200. [

The VBE cubicle 10 transmits the unique number of the optical cable and the optical loss calculated corresponding to the optical cable to an external terminal (or an arbitrary server) communicably connected thereto under the control of the controller 200 (Not shown) for transmitting and receiving data.

The communication unit communicates with any internal component or external terminal through a wired / wireless communication network. Here, the wireless Internet technology includes a wireless LAN (WLAN), a Wi-Fi, a wireless broadband (Wibro), a World Interoperability for Microwave Access (Wimax), a High Speed Downlink Packet Access, IEEE 802.16, Long Term Evolution (LTE), Wireless Mobile Broadband Service (WMBS), and the like. The local area communication technology may be Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), ZigBee, Near Field Communication ), And the like. The wired communication technology may include a power line communication (PLC), a USB communication, an Ethernet, a serial communication, an optical / coaxial cable, and the like.

As described above, the optical input / output board of the HVDC system can include a light source and a measurement unit for measuring the received light intensity, thereby measuring optical loss of a plurality of optical cables connected to the optical input / output board.

In this way, the unique number of the plurality of optical cables and the measured optical loss value of the corresponding optical cable can be displayed through the display unit (or HMI).

Hereinafter, a method of controlling the VBE cubicle of the HVDC system according to the present invention will be described in detail with reference to FIGS. 1 and 2. FIG.

2 is a flowchart illustrating a method of controlling a VBE cubicle of an HVDC system according to an embodiment of the present invention.

First, the light source 110 formed on the optical input / output board 100 is connected to the optical input / output board 100 when a predetermined mode is selected (or operated) under the control of the controller 200 And transmits the optical signal to one or more (or a plurality of) optical cables connected thereto (or via the optical cable). Here, the predetermined mode may be an optical cable loss mode in maintenance mode, a function confirmation mode after initial installation, and the like.

For example, when the optical cable loss mode set in advance in the maintenance mode is selected by the control of the control unit 200, the light source 110 outputs a plurality of The optical signal is sequentially transmitted to the optical cable (S210).

Thereafter, the measurement unit 120 formed on the optical input / output board 100 receives the optical signal transmitted through the at least one (or plurality of) optical cables, measures the optical intensity of the received optical signal (S220).

The control unit 200 calculates the optical loss (or optical loss value) of each optical cable based on the light intensity (or the optical intensity of the optical signal) measured through the measurement unit 120 (S230).

Then, the control unit 200 displays the optical loss of the calculated optical cable on the display unit 300. At this time, the display unit 300 displays a predetermined unique number of each optical cable and an optical loss of the optical cable calculated corresponding to each optical cable.

The control unit 200 determines (or confirms) whether the optical loss of the calculated optical cable exceeds a preset range, and when the optical loss of the calculated optical cable exceeds the preset range, An alarm signal may be generated and displayed on the display unit 300 or a display related to the optical cable exceeding the preset range displayed on the display unit 300 may be displayed differently from the display related to other normal optical cables.

For example, when the optical loss of the first optical cable exceeds the predetermined range, of the optical losses of the calculated plurality of optical cables, the control unit 200 determines the number of the normal second and third optical cables, The optical loss may be displayed in black, and the unique number of the first optical cable and / or the calculated optical loss may be displayed in red (S240).

As described above, in the embodiment of the present invention, a light source and a measurement unit for measuring a received light intensity are formed on an optical input / output board of the HVDC system to measure optical loss of a plurality of optical cables connected to the optical input / output board , And the optical loss measurement time of the optical cable can be shortened.

In addition, as described above, the embodiment of the present invention displays the unique number of a plurality of optical cables and the measured optical loss value of the corresponding optical cable through the display unit (or HMI), thereby easily detecting and checking the optical cable have.

The present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

10: VBE cubicle 100: Optical input / output board
200: control unit 300: display unit
400: storage unit 110: light source
120:

Claims (4)

In a VBE cubicle of an HVDC system including an optical input / output board,
A light source formed on the optical input / output board and transmitting an optical signal to one or more optical cables connected to the optical input / output board when a preset mode is selected;
A measuring unit formed on the optical input / output board, for receiving an optical signal transmitted through the at least one optical cable and measuring an optical intensity of the received optical signal;
A control unit for calculating an optical loss of the optical cable based on the measured light intensity; And
And a display unit for displaying a preset unique number of the at least one optical cable and an optical loss of the calculated optical cable corresponding to the optical cable. The method according to claim 1,
Wherein the VBE cubicle of the HVDC system is characterized in that it is an optical fiber loss mode in the maintenance mode or a function confirmation mode after the initial installation. The apparatus of claim 1,
And an alarm signal is generated and displayed on the display unit when the optical loss of the calculated optical cable exceeds a preset range. The apparatus of claim 1,
And displays the display related to the optical cable exceeding the preset range displayed on the display unit differently from the display related to other normal optical cables when the calculated optical loss of the optical cable exceeds a predetermined range. VBE cubicle of.
KR20130086298A 2013-07-22 2013-07-22 Vbe cubicle of hvdc system KR20150011253A (en)

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KR20130086298A KR20150011253A (en) 2013-07-22 2013-07-22 Vbe cubicle of hvdc system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019182247A1 (en) * 2018-03-23 2019-09-26 삼성전자주식회사 Display apparatus and control method for display apparatus
KR20210014994A (en) * 2019-07-31 2021-02-10 한국전자통신연구원 Apparatus and method for status checking of offline sub-modules with Power-over-Fiber on HVDC

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019182247A1 (en) * 2018-03-23 2019-09-26 삼성전자주식회사 Display apparatus and control method for display apparatus
US11239911B2 (en) 2018-03-23 2022-02-01 Samsung Electronics Co., Ltd. Display apparatus and control method for display apparatus
KR20210014994A (en) * 2019-07-31 2021-02-10 한국전자통신연구원 Apparatus and method for status checking of offline sub-modules with Power-over-Fiber on HVDC

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