• Title/Summary/Keyword: Powerline communication

Search Result 72, Processing Time 0.046 seconds

Design of FPGA OFDM Modem for Powerline Communications (OFDM 방식을 이용한 전력선 통신 모뎀 FPGA 구현)

  • Lee, Won-Tae;Lim, Ja-Yong;Lee, Young-Chul
    • Proceedings of the KIEE Conference
    • /
    • 2005.07d
    • /
    • pp.2989-2991
    • /
    • 2005
  • 전력선 통신(Power Lire Communication)은 홈오토메이션, 원격 검침(AMR) 분야에서 많이 사용되어진다. 전력선 통신은 많은 유용성에도 불구하고 전력선 채널에 대한 정확한 채널 모델링과 전력선 모뎀에 관해서는 많은 문제점을 나타내고 있다. 본 논문에서는 고속 전력선 통신을 위한 전송선로의 주파수에 대한 잡음과 임피던스 특성 및 전력선 채널에 OFDM 신호를 QPSK 변조기법으로 전송하였을 때의 시뮬레이션 결과와 설계된 FPGA 보드를 비교 분석 하였다. 채널 모델은 잡음과 감쇠 특성만을 고려하여 모델링 하였으며, 전력선 채널 상에서의 OFDM 기법을 적용한 모뎀의 성능을 분석하였다.

  • PDF

Development of Transformer with a built-in coupler for Powerline Communication (전력선통신을 위한 커플러 내장형 변압기 개발)

  • Kim, Young-Hyun;Myoung, No-Gil;Choi, In-Ji;Park, Byung-Seok;Lee, Sang-Jin
    • Proceedings of the KIEE Conference
    • /
    • 2008.07a
    • /
    • pp.902-903
    • /
    • 2008
  • 전력을 공급하는 전력선을 이용, 통신을 수행하는 전력선통신 기술은 기존 전력시스템을 지능적이고 탄력적인 에너지 공급시스템으로 개선하기 위해 필요한 통신인프라로서 가장 효과적인 방식으로 논의되고 있다. 그러나 고주파 신호 특성을 갖고 있는 전력선통신기술은 변압기를 통과하지 못하며, 이로 인해 고압과 저압이 분리되어 운영되며, 용량제한 등으로 상용화에 많은 어려움을 겪고 있다. 이에 본 논문에서는 상기와 같은 문제점을 해결하고자 전력선통신용 커플러를 내장한 변압기를 개발하고자 한다. 본 개발품을 통해 변압기는 전력선통신신호를 통과하게 함으로서 손쉽게 저압과 고압 연동이 가능하게 하며 이를 토대로 전력통신 시스템의 용량을 획기적으로 증가시킬 수 있게 하였다.

  • PDF

Protocol Design in Distribution Powerline Communication Network (배전선로를 이용한 통신망 구성 및 통신 프로토콜 설계)

  • Ju Seong-Ho;Gwak Kwi-Yil;Lim Yong-Hun;Park Byung-Seok;Kim Young-Hyun;Lee Beom-Seok;Hyun Duck-Hwa
    • Proceedings of the KIPE Conference
    • /
    • 2006.06a
    • /
    • pp.475-477
    • /
    • 2006
  • 최근들어 PLC 기술의 성능 및 안정성이 보완됨에 따라 배전선로 및 설비 감시를 위한 기존의 통신방식을 대체할 수 있게 되면서 PLC를 이용한 배전선로 통신망을 구성하는 연구가 활발히 진행중에 있다. 본 논문에서는 고속PLC를 이용하여 배전통신망을 구성할 경우 원활한 시스템을 구성하기 위한 Flooding 방지 프로토콜을 제안하고 시뮬레이션을 통해 고속 PLC망의 성능을 분석하고자 한다.

  • PDF

A Study on 40kbps Narrowband Powerline Communication Modem Implementation (40kbps급 협대역 전력선 통신 모뎀 구현에 관한 연구)

  • Lee, Won-Tae;Lee, Jae-Jo;Kim, Kwan-Ho;Beun, Min-Sup;Woo, Dae-Ho;Jeong, Young-Hwa;Kim, Chul
    • Proceedings of the KIEE Conference
    • /
    • 2003.07d
    • /
    • pp.2714-2716
    • /
    • 2003
  • 대역확산기술의 하나인 Chirp 방식을 이용하여 기존의 전력선 통신모뎀 보다 고속 전송이 가능한 40kbps급 협대역 전력선 통신모뎀을 구현하였다. 본 연구에서 구현한 모뎀은 CEBus 규격을 사용하였으며, $100{\sim}380kHz$의 선형 가변 주파수 신호가 25us 동안 지속한 심볼을 사용하였다. 그리고 구현된 모뎀의 무부하 선로, 각종 부하 및 잡음환경에서의 특성실험 결과, Chirp 방식의 통신기술이 협대역에서 40kbps 이상의 속도를 낼 수 있는 가능성을 확인하였다.

  • PDF

The Design and Implementation of AMI System Using Binary CDMA (Binary CDMA 기반의 AMI 시스템 설계 및 구현)

  • Joe, In-Whee;Jeong, Jong-Yuel
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.37 no.8C
    • /
    • pp.663-669
    • /
    • 2012
  • To solve the energy problem and finding new growth engines, interest for the smart grid is increasing and related technologies are making great efforts to secure in the world. AMI (Advanced Metering Infrastructure) Among them is the first to be constructed and getting attention as a key component of smart grid. A fusion of various technologies in technology development and demonstration is underway on Jeju Island Smart Grid Demonstration Complex in Korea, and focusing on broadband power line communication technology infrastructure is actively underway in Korea Electric Power Corporation. AMI system using power line communication technology without building a separate communication lines are available for power supply lines, but communication is impossible in occurs because admission to the power company or the ideal infrastructure for communication is not considered. In this paper, we analyze the requirements to build AMI system using Binary CDMA and powerline communications technology, and design the basic communication protocol based on Binary CDMA, implement network management and relay feature. By doing so, ways to apply Ad-hoc Binary CDMA indigenous technology to the AMI system were derived, and could build a system to make use of Wired (PLC) and wireless (Binary CDMA) simultaneously.

Worker Location Tracking System of Shipyard using Power Line Communication and Beacon (전력선 통신과 비컨을 활용한 선박 건조 현장의 작업자 위치 추적 시스템)

  • Taewoong Hwnag;Young-Doo Lee;Ki-Woong Park;In-Soo Koo
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.24 no.2
    • /
    • pp.41-49
    • /
    • 2024
  • This paper discusses the modeling and implementation of a worker location system at a shipbuilding site. The importance of worker location in an industrial environment is highlighted as a critical element in the prevention of industrial accidents. The paper presents a worker tracking system that integrates power line and beacon communication to accurately track worker position. Through experiments, the paper demonstrates how to monitor the changes in worker location based on different scenarios and how to access the status of worker location using the manager's web service. The paper can be used for the design of a system that will provide real-time location information to safety managers for the improvement of worker safety management.

Modeling and Characterization of Low Voltage Access Network for Narrowband Powerline Communications

  • Masood, Bilal;Haider, Arsalan;Baig, Sobia
    • Journal of Electrical Engineering and Technology
    • /
    • v.12 no.1
    • /
    • pp.443-450
    • /
    • 2017
  • Nowadays, Power Line Communication (PLC) is gaining high attention from industry and electric supply companies for the services like demand response, demand side management and Advanced Metering Infrastructure (AMI). The reliable services to consumers using PLC can be provided by utilizing an efficient PLC channel for which sophisticated channel modeling is very important. This paper presents characterization of a Low Voltage (LV) access network for Narrowband Power Line Communications (NB-PLC) using transmission line (TL) theory and a Simulink model. The TL theory analysis not only includes the constant parameters but frequency selectivity is also introduced in these parameters such as resistance, conductance and impedances. However, the proposed Simulink channel model offers an analysis and characterization of capacitive coupler, network impedance and channel transfer function for NB-PLC. Analysis of analytical and simulated results shows a close agreement of the channel transfer function. In the absence of a standardized NBPLC channel model, this research work can prove significant in improving the efficiency and accuracy of NB-PLC communication transceivers for Smart Grid communications.

Development of the Composite Communication System for Controlling Electricity (전력제어용 복합통신시스템 개발)

  • Ju, Seong-Ho;Lee, Tae-Young;Park, Byung-Seok;Kim, Young-Hyun;Kang, Jong-Sik;Kwak, Kwi-Il;Hyun, Duck-Hwa
    • Proceedings of the KIPE Conference
    • /
    • 2005.07a
    • /
    • pp.84-86
    • /
    • 2005
  • 전력선통신(PLC : Powerline Communication)을 기존에 이용되고 있는 통신 기술과 접목할 경우 각 통신 방식 간의 단점을 상호 보완할 수 있어 신뢰성, 유연성, 확장성이 우수한 배전계통의 자동화용통신시스템을 구성할 수 있게 된다. 이를 통해 배전계통의 자동화와 안정화를 이룰 수 있어 무정전, 고품질의 전력 공급이 가능해지며, 지상변압기 감시제어시스템, 원격 전력조정시스템, 전력품질 감시시스템 등 향후 도입될 다양한 배전계통의 자동화시스템 구성에 있어 통신망 임대비를 획기적으로 절감할 수 있게 된다. 본 논문에서는 전력선통신을 기반으로 한전 TRS와 위성망, 그리고 케이블, 광통신망을 통합함으로써 신뢰성이 높고 유연성이 뛰어난 복합통신 시스템을 제안하고자 한다.

  • PDF

Study on Performance of Double Binary Turbo Code for Power Line Communication Systems Base on OFDM (OFDM 기반의 전력선 통신 시스템에서 이중 이진 터보 부호 성능 연구)

  • Kim, Jin-Young;Cha, Jae-Sang;Kim, Seong-Kweon;Lee, Jong-Joo;Kim, Jae-Hyun;Lee, Chong-Hoon;Kim, Eun-Cheol
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.9 no.3
    • /
    • pp.193-199
    • /
    • 2009
  • Powerline communications (PLC) technology has been discussed and analyzed as a highly potential candidate of wireline access network solutions. In this paper, performance of double binary turbo coded orthogonal frequency division multiplexing (OFDM) system is analyzed and simulated in power line communications channel. In order to make power line channel environments, Bernoulli-Gaussian noise is considered. The performance is evaluated in terms of bit error probability. From the simulation results, it is demonstrated that the double binary turbo coding scheme offers considerable coding gain with reasonable encoding complexity. It is also shown that the system performance can be substantially improved by increasing the number of iterations.

  • PDF

The Analysis of Underground Power Line Communication Channel Characteristics by Measurements (지중전력선 통신채널 측정에 의한 특성해석)

  • Shin, Dong-Hwan;Choi, Jeong-Yeon;Lee, Seung-Jun;Woo, Hui-Gon;Shin, Jai-Ho;Eom, Ki-Hwan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2009.10a
    • /
    • pp.86-89
    • /
    • 2009
  • In this paper, a broadband power line communication modem and network technology to develop tests with actual characteristics of the underground power line communication channel to be interpreted. Length and structure of the underground distribution line due to underground distribution line to the broadband powerline communication channels to measure the amount of attenuation on the signal generator, spectrum analyzer, such as contactless coupler was used to configure the channel measurement system. Demonstration tests in the test line as a single line by selecting the longest high-voltage lines where the two-channel measurement and signal attenuation on the noise level was measured. Measuring results degrade communication performance can be quite sure that was the presence of impulse noise, long lines, the line length was confirmed by the high-frequency attenuation appears.

  • PDF