KR101500872B1 - Transformer with dcu - Google Patents

Transformer with dcu Download PDF

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Publication number
KR101500872B1
KR101500872B1 KR20130132886A KR20130132886A KR101500872B1 KR 101500872 B1 KR101500872 B1 KR 101500872B1 KR 20130132886 A KR20130132886 A KR 20130132886A KR 20130132886 A KR20130132886 A KR 20130132886A KR 101500872 B1 KR101500872 B1 KR 101500872B1
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South Korea
Prior art keywords
voltage
transformer
data
modem
low
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KR20130132886A
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Korean (ko)
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유창성
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엘에스산전 주식회사
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Priority to KR20130132886A priority Critical patent/KR101500872B1/en
Priority to US14/512,015 priority patent/US9570232B2/en
Priority to ES14188391.8T priority patent/ES2617538T3/en
Priority to EP14188391.8A priority patent/EP2869475B1/en
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Publication of KR101500872B1 publication Critical patent/KR101500872B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Abstract

Disclosed is a transformer having a data concentration unit (DCU). According to the present invention, there is provided a transformer having a data concentration unit, which includes a voltage transformation unit for converting a primary voltage having a high voltage into a secondary voltage having a low voltage and converting a secondary voltage having a low voltage into a primary voltage having a high voltage; a separation unit for separating a data signal from the primary voltage applied thereto; a coupling unit for coupling the data signal and the secondary voltage having a low voltage to each other; and a first modem for transmitting the data signal received from the separation unit through communication trunk; and a second modem for providing metered data received through communication to the coupling unit.

Description

데이터 집중장치 내장형 변압기{TRANSFORMER WITH DCU}[0001] TRANSFORMER WITH DCU [

본 발명은 데이터 집중장치 내장형 변압기에 관한 것이다.
The present invention relates to a data concentrator built-in transformer.

일반적으로, 전력선 통신이란 전력을 공급하는 전력선(power line)을 데이터 통신을 위한 매체로 같이 사용하는 것을 말한다.Generally, power line communication refers to the use of a power line that supplies power as a medium for data communication.

보통 전력선 신호는 변대주에 배치되는 변압기를 거치면서 40dB 정도 감쇄되므로, 변압 전단과 변압 후단에서의 전력선 통신이 용이하지 않은 문제점이 있다.Usually, the power line signal attenuates by 40dB while passing through a transformer disposed at the side of the transformer, so there is a problem that the power line communication at the front end of the transformer and the power line at the rear end of the transformer is not easy.

도 1은 종래 변압기의 동작을 설명하기 위한 구성도이다.1 is a block diagram for explaining the operation of a conventional transformer.

보통 고압의 1차 전압이 변압기(100)에 인가되면, 변압부(110)에 의해 저압의 2차 전압으로 변환되는 동시에, 변환된 2차 전압이 전력선 통신(PLC) 통신모듈(120)에 인가되어, 2차 전압에서 데이터를 추출하게 되는 구성이다.When a primary voltage of a high voltage is applied to the transformer 100, the secondary voltage is converted into a low voltage by the transformer 110 and the converted secondary voltage is applied to the PLC communication module 120 And the data is extracted from the secondary voltage.

그러나, 위에서 설명한 바와 같이, 변압부(110)를 통해 전압이 변환되면서, 약 40dB의 감쇄가 발생하므로, 데이터 역시 감쇄되어 통신이 어려운 문제점이 있다.However, as described above, since the voltage is converted through the transformer 110, the attenuation of about 40 dB occurs, so that data is also attenuated and communication is difficult.

한편, 전력선 통신을 이용한 자동 원격검침(Automatic Meter Reading; AMR) 시스템에서는, 데이터 집중장치((Data Concentration Unit; DCU)가 변압기의 하단에 별도로 장착되어 DCU와 변압기간 간선통신을 위해 별도의 통신선이 요구되어, 비용이 요구되는 문제점이 있다.
Meanwhile, in the automatic meter reading (AMR) system using power line communication, a data concentrator (DCU) is separately installed at the lower end of the transformer, and a separate communication line is used for trunk communication between the DCU and the transformer There is a problem that cost is required.

본 발명이 해결하고자 하는 기술적 과제는, 변압기에서 전압의 변환에 의한 감쇄의 영향을 받지 않고 전력선 통신을 수행하게 하는 동시에, 변압기와 DCU간 별도의 케이블이 요구되지 않는 DCU 내장형 변압기를 제공하는 것이다.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a DCU built-in transformer in which a power line communication is performed without being affected by attenuation due to voltage conversion in a transformer and a separate cable is not required between the transformer and the DCU.

상기와 같은 기술적 과제를 해결하기 위해, 본 발명의 데이터 집중장치(DCU) 내장형 변압기는, 고압의 1차 전압을 저압의 2차 전압으로 변환하고, 저압의 2차 전압을 고압의 1차 전압으로 변환하는 변압부; 인가되는 1차 전압에서 데이터 신호를 분리하는 분리부; 데이터 신호와 저압의 2차 전압을 결합하는 결합부; 상기 분리부로부터 데이터 신호를 수신하여 이를 간선통신을 통해 전송하는 제1모뎀; 및 검침용 데이터를 통신을 통해 수신하여 이를 결합부에 제공하는 제2모뎀을 포함할 수 있다.According to an aspect of the present invention, there is provided a data concentrator (DCU) -incorporated transformer, which converts a primary voltage of a high voltage into a secondary voltage of a low voltage and a secondary voltage of a low voltage to a primary voltage of a high voltage A transforming part for transforming; A separator for separating the data signal from the applied primary voltage; A coupling unit for coupling a data signal and a low-voltage secondary voltage; A first modem for receiving a data signal from the demultiplexer and transmitting the data signal through trunk communication; And a second modem that receives data for meter reading through communication and provides the data to the combining unit.

본 발명의 일실시예에서, 인가되는 1차 전압에서 전기신호를 필터링하여, 전기신호만을 상기 변압부에 제공하는 필터를 더 포함할 수 있다.In an embodiment of the present invention, the apparatus may further include a filter that filters the electrical signal at the applied primary voltage and provides only the electrical signal to the transformer.

본 발명의 일실시예에서, 외부 버스를 통해 상기 제1모뎀 및 상기 제2모뎀의 데이터를 송수신하도록 제어하는 제어부를 더 포함할 수 있다.
In an embodiment of the present invention, the control unit may further include a controller for controlling transmission / reception of data between the first modem and the second modem via an external bus.

상기와 같은 본 발명은, 변압기 전단의 전력선 통신신호를 감쇄없이 변압기 후단에 전달하여, 변압 전후의 전력선 통신 시스템을 일원화하도록 하는 효과가 있다.The present invention as described above is effective in transmitting the power line communication signal at the front end of the transformer to the rear end of the transformer without attenuation, thereby unifying the power line communication system before and after the transforming.

또한, 본 발명은 하드웨어적으로 별도의 기구가 요구되지 않으며, 부품의 공용이 가능하여 제품의 비용을 줄이도록 하는 효고가 있다.
Further, the present invention does not require a separate mechanism in terms of hardware, and it is possible to share the parts, thereby reducing the cost of the product.

도 1은 종래 변압기의 동작을 설명하기 위한 구성도이다.
도 2는 본 발명에 따른 DCU 내장형 변압기의 일실시예 구성도이다.
도 3은 본 발명이 적용되는 시스템의 개념도이다.1 is a block diagram for explaining the operation of a conventional transformer.
2 is a block diagram of a DCU built-in transformer according to an embodiment of the present invention.
3 is a conceptual diagram of a system to which the present invention is applied.

본 발명은 다양한 변경을 가할 수 있고 여러가지 실시예를 가질 수 있는바, 특정 실시예들을 도면에 예시하고 상세한 설명에 상세하게 설명하고자 한다. 그러나, 이는 본 발명을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다.While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 일실시예를 상세히 설명한다. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 DCU 내장형 변압기의 일실시예 구성도이다.2 is a block diagram of a DCU built-in transformer according to an embodiment of the present invention.

도면에 도시된 바와 같이, 본 발명의 일실시예의 변압기(1)는, 변압부(10), 제1필터(11), 제2필터(12), 고압 아날로그 프론트 엔드(High Voltage-Analog Front End; HV-AFE)(13), 저압 아날로그 프론트 엔드(LV-AFE)(14), 간선통신용 모뎀(15), 검침용 모뎀(16), 감시부(17), 제어부(18), 이더넷 인터페이스(19) 및 유무선 통신모듈(20)을 포함하며, 이때 간선통신용 모뎀(15), 검침용 모뎀(16), 감시부(17), 제어부(18), 이더넷 인터페이스(19) 및 유무선 통신모듈(20)은 DCU 기능을 수행하는 것이다.As shown in the drawings, a transformer 1 of an embodiment of the present invention includes a transformer 10, a first filter 11, a second filter 12, a High Voltage-Analog Front End (HV-AFE) 13, a low voltage analog front end (LV-AFE) 14, a modem 15 for a main line communication, a meter modem 16, a monitoring section 17, a control section 18, 19, and a wired / wireless communication module 20. The modem 15, the meter reading modem 16, the monitoring unit 17, the control unit 18, the Ethernet interface 19, and the wired / wireless communication module 20 ) Perform DCU functions.

제1필터(110)는 입력되는 1차 전압에서 데이터를 필터링하여 순수 전력만을 변압부(10)에 제공한다. 변압부(10)는 고압의 1차 전압을 저압의 2차 전압으로 변환할 수 있다.The first filter 110 filters the data at the input primary voltage and provides only the pure power to the transformer 10. The transforming unit 10 can convert the high voltage primary voltage into a low voltage secondary voltage.

또한, 제2필터(12)는 변압부(10)를 통과한 2차 전압을 재차 필터링하여 최종적으로 2차 전압을 출력할 수 있다.In addition, the second filter 12 may filter the secondary voltage that has passed through the transforming unit 10 to finally output the secondary voltage.

변압부(10)는 고압의 1차 전압을 저압의 2차 전압으로 변환하거나, 또는 저압의 2차 전압을 고압의 1차 전압으로 변환할 수 있다. The transforming unit 10 can convert the high voltage primary voltage into a low voltage secondary voltage or the low voltage secondary voltage into a high voltage primary voltage.

HV-AFE(13)는 고압선에 연결되어 고압선으로부터 공급된 선로전압은 차단하고 데이터만을 추출한다. 또한, LV-AFE(14)는 저압선에 연결되어, 선로전압과 데이터를 결합한다. The HV-AFE (13) is connected to the high-voltage line to cut off the line voltage supplied from the high-voltage line and extracts only the data. Further, the LV-AFE 14 is connected to the low voltage line to combine the line voltage and the data.

감시부(17)는 제어부(18)의 제어에 따라 변압기(10) 자체를 감시할 수 있다.The monitoring unit 17 can monitor the transformer 10 itself under the control of the control unit 18. [

간선통신용 모뎀(15)은 HV-AFE(13)로부터 수신한 데이터를 수신하여 이를 제어부(18)에 전달할 수 있다. 또한, 제어부(18)는 전력선 통신을 통해 전송할 데이터를 검침용 모뎀(16)에 전달하여, LV-AFE(14)를 통해 2차 전압에 결합할 수 있다.
The modem 15 for the main line communication receives the data received from the HV-AFE 13 and can transmit the received data to the control unit 18. Also, the control unit 18 can transmit the data to be transmitted through the power line communication to the meter reading modem 16, and can couple the data to the secondary voltage through the LV-AFE 14. [

변압기(1)에 전력선 통신을 위한 신호가 인가되면, 고압의 1차 전압은 제1필터(11)를 통해 필터링되어 전기신호만이 변압부(10)에 의해 저압의 2차전압으로 변환된다. 또한, 고압의 1차 전압은 HV-AFE(13)를 통해 데이터가 선로전압과 분리되어, 기저대역 신호만이 간선통신용 모뎀(15)에 인가될 수 있다. When a signal for power line communication is applied to the transformer 1, the high-voltage primary voltage is filtered through the first filter 11 so that only the electrical signal is converted into a low-voltage secondary voltage by the transformer 10. [ Further, the primary voltage of the high voltage can be separated from the line voltage via the HV-AFE 13 so that only the baseband signal can be applied to the modem 15 for the trunk communication.

한편, 제어부(18)에 의해 검침용 모뎀(16)으로 인가된 데이터 신호는 LV-AFE(14)를 통해 저압의 선로전압과 결합되어, 변압부(10)를 통해 고압의 1차 전압으로 변환되어 외부의 전력선으로 인가될 수 있을 것이다. On the other hand, the data signal applied to the meter modem 16 by the control unit 18 is combined with the low-voltage line voltage through the LV-AFE 14 and converted into a high-voltage primary voltage through the transforming unit 10 And may be applied to an external power line.

제어부(18)는 주변기기 버스를 통해 이더넷(Ethernet®) 인터페이스(19) 및 유무선 통신모듈(20)에 연결되어 데이터를 송수신할 수 있을 것이다. The control unit 18 may be connected to the Ethernet interface 19 and the wired / wireless communication module 20 via a peripheral bus to transmit and receive data.

이와 같이, 본 발명은 변압기에 인가되는 통신신호가 변압부(10)를 직접 거치지 않으므로, 전력선 통신신호의 감쇄 없이 변압기 신호를 전달할 수 있으며, 변압기 내부에서 AMR을 위한 데이터를 직접 송수신하므로, 변압기와 DCU간 케이블이 요구되지 않고 또한 하드웨어를 줄일 수 있다.
As described above, since the communication signal applied to the transformer does not directly pass through the transformer 10, the transformer signal can be transmitted without attenuation of the power line communication signal. Since the AMR data is directly transmitted and received in the transformer, DCU-to-DCU cable is not required and hardware can be reduced.

도 3은 본 발명이 적용되는 시스템의 개념도이다.3 is a conceptual diagram of a system to which the present invention is applied.

도면에 도시된 바와 같이, 전력선(3)을 통해 연결되는 변대주(4)에 변압기(1)가 배치되며, 변압기(2)가 복수의 미터(2)와 연결된다. 이때, 변대주(4)에 설치되는 하드웨어는, 본 발명의 변압기(1) 뿐이며, 본 발명의 변압기(1)에 의해 DCU가 내장되므로, 하드웨어의 낭비를 줄일 수 있을 것이다.
As shown in the drawing, a transformer 1 is disposed on an undercarriage 4 connected via a power line 3, and a transformer 2 is connected to a plurality of meters 2. [ At this time, only the transformer 1 of the present invention has hardware installed in the side girder 4, and since the DCU is built by the transformer 1 of the present invention, the waste of hardware can be reduced.

이상에서 본 발명에 따른 실시예들이 설명되었으나, 이는 예시적인 것에 불과하며, 당해 분야에서 통상적 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 범위의 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 다음의 특허청구범위에 의해서 정해져야 할 것이다.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

10: 변압부 11, 12: V;FXK
13: HV-AFE 14: LV-AFE
15, 16: 모뎀 17: 감시부
18: 제어부 19: 이더넷 인터페이스
20: 유무선 통신모듈10: Transformer 11, 12: V; FXK
13: HV-AFE 14: LV-AFE
15, 16: Modem 17: Monitoring section
18: control unit 19: Ethernet interface
20: Wired / wireless communication module

Claims (3)

고압선에 연결되어, 고압의 1차 전압에서 전기신호를 필터링하는 제1필터;
상기 제1필터로부터 제공되는 고압의 1차 전압을 저압의 2차 전압으로 변환하고, 저압의 2차 전압을 고압의 1차 전압으로 변환하는 변압부;
저압선에 연결되어, 상기 변압부를 통과한 2차 전압을 필터링하는 제2필터;
고압선에 연결되어, 인가되는 1차 전압에서 데이터 신호를 분리하는 분리부;
저압선에 연결되어, 데이터 신호와 저압의 2차 전압을 결합하여 상기 변압부에 제공하는 결합부;
상기 분리부로부터 데이터 신호를 수신하여 이를 간선통신을 통해 전송하는 제1모뎀; 및
검침용 데이터를 통신을 통해 수신하여 이를 결합부에 제공하는 제2모뎀을 포함하고,
상기 변압부는, 상기 결합부로부터 인가되는 데이터 신호가 결합된 저압의 2차 전압을 고압으로 변환하는 것을 특징으로 하는 데이터 집중장치(DCU) 내장형 변압기.
A first filter connected to the high-voltage line for filtering an electric signal at a high-voltage primary voltage;
A transformer for converting the high-voltage primary voltage provided from the first filter into a low-voltage secondary voltage and converting the low-voltage secondary voltage into a high-voltage primary voltage;
A second filter connected to the low voltage line for filtering the secondary voltage passing through the transforming unit;
A separator connected to the high voltage line for separating the data signal from the applied primary voltage;
A coupling unit coupled to the low voltage line for coupling the data signal and the low voltage secondary voltage to the transforming unit;
A first modem for receiving a data signal from the demultiplexer and transmitting the data signal through trunk communication; And
And a second modem for receiving the meter reading data through communication and providing the meter reading data to the combining unit,
Wherein the transformer converts a low-voltage secondary voltage coupled with a data signal applied from the coupling unit to a high voltage.
삭제delete 제1항에 있어서,
외부 버스를 통해 상기 제1모뎀 및 상기 제2모뎀의 데이터를 송수신하도록 제어하는 제어부를 더 포함하는 DCU 내장형 변압기.The method according to claim 1,
Further comprising a control unit for controlling transmission and reception of data of the first modem and the second modem via an external bus.
KR20130132886A 2013-11-04 2013-11-04 Transformer with dcu KR101500872B1 (en)

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KR20130132886A KR101500872B1 (en) 2013-11-04 2013-11-04 Transformer with dcu
US14/512,015 US9570232B2 (en) 2013-11-04 2014-10-10 Transformer for power line communication
ES14188391.8T ES2617538T3 (en) 2013-11-04 2014-10-10 Transformer for power line communication
EP14188391.8A EP2869475B1 (en) 2013-11-04 2014-10-10 Transformer for power line communication

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KR200490165Y1 (en) 2018-04-23 2019-10-04 한국전력공사 Data Concentrator Unit Cradle equipment for Pad Mounted Transformer
CN112329286A (en) * 2020-10-20 2021-02-05 中国矿业大学 Novel induction filtering transformer structure applied to low-voltage power distribution network

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KR20020006773A (en) * 2000-07-13 2002-01-26 이기원 connecting apparatus of power line for Power Line Communication on low power line
KR20080061343A (en) * 2008-05-28 2008-07-02 한국전력공사 Automatic meter reading system in underground distribution line using power line comunication
KR20090022386A (en) * 2007-08-30 2009-03-04 김성만 Current measuring device of high voltage instrument insulated using electromagnetic induction
KR101139698B1 (en) * 2011-10-28 2012-05-02 한국표준과학연구원 Transformer bypass apparatus of time information broadcasting using power-line broadcasting

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Publication number Priority date Publication date Assignee Title
KR20020006773A (en) * 2000-07-13 2002-01-26 이기원 connecting apparatus of power line for Power Line Communication on low power line
KR20090022386A (en) * 2007-08-30 2009-03-04 김성만 Current measuring device of high voltage instrument insulated using electromagnetic induction
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Publication number Priority date Publication date Assignee Title
KR200490165Y1 (en) 2018-04-23 2019-10-04 한국전력공사 Data Concentrator Unit Cradle equipment for Pad Mounted Transformer
CN112329286A (en) * 2020-10-20 2021-02-05 中国矿业大学 Novel induction filtering transformer structure applied to low-voltage power distribution network
CN112329286B (en) * 2020-10-20 2024-02-13 中国矿业大学 Novel induction filtering transformer structure applied to low-voltage distribution network

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