Browse > Article

Development of Signal Coupler for Power Line Communication over Medium Voltage Distribution Line  

Lee Jae-Jo (한국전기연구원)
Park Young-Jin (한국전기연구원)
Oh Hui-Myoung (한국전기연구원 연구원)
Kim Kwan-Ho (한국전기연구원 책임연구원)
Lee Dae-Young (경희대학교)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers D / v.54, no.6, 2005 , pp. 409-416 More about this Journal
Abstract
For broadband high-data-rate power line communication with the allocated frequency bandwidth from 2 to 30 MHz on medium voltage (MV) distribution power lines, a signal coupling unit is developed. The coupling unit is composed of a coupling capacitor for coupling communication signal, a drain coil, and an impedance matching part. The coupling capacitor made of ceramic capacitor is designed for transmission property of better than 1 dB in the frequency range. The drain coil is used for preventing low frequency high voltage from junction of medium voltage power line in case that a coupling capacitor is not working properly any more. Also, using ferrite core, a novel broadband impedance matching transformer is developed. A complete coupling unit with a coupling capacitor, a drain coil, and a matching transformer is housed by polymer for good isolation and distinguishing from high voltage electric facilities. Each is fabricated and its frequency behavior is tested. Finally, complete signal couplers are equipped in a MV PLC test bed and their performance are measured. The measurement shows that the coupling capacitor works excellently.
Keywords
Power line communication:PLC; Medium voltage distribution network; SiBnal Coupling unit;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Jae-Jo, Lee et al, ' Signal Coupling Apparatus for Communication by Medium Voltage Power Line', US Patent Pub. No.: US 2004/0032307
2 N. Pavlidou, A. Han Vinck, J. Yzadani, and B. Honary, 'Power line communications : state of the art and future trends', IEEE Communications Magazine, Vol. 41, No.4, pp 34-40, 2003   DOI   ScienceOn
3 Dong-Wan Chun, et al., 'Input impedance calculation of the power line communication system', The Journal of the Korean Institute of Communication Sciences, vol. 29, no. 9A, pp. 983-990, Sep. 2004
4 Gerd Bumiller, 'Using Inductive Coupling Units for Transmission over Shield in Contact with Earth MV Cables', Proceedings of the 8th ISPLC, 2004
5 Paul A. Kline, 'Method and Apparatus for providing Inductive Coupling and De-Coupling of High Frequency, High-Bandwidth Data Signals Directly on and off of a High voltage power Line', US Patent Pub. No.: US 2002/0110310
6 Adrew Sugg, ' Capacitive Couplers and Methods for Communicating over an Electrical Power Delivery System', US Patent Pub No. : US 2004/0183619
7 Clifford A. Davidow, ' Medium Voltage Signal Coupling Structure for Last LEG Power Grid High-Speed Data Network', US Patent Pub No. : US 2004/0056734
8 Jae-Jo Lee, Seung-Ji Choi, Hui-Myoung Oh, Won-Tae Lee, Kwan-Ho Kim, Dae-Young Lee, 'Measurements of the Communication Environment in Medium Voltage Power Distribution Lines for Wide-Band Power Line Communications', Proceedings of the 8th ISP LC, 2004
9 Hui-Myoung Oh, Jae-Jo Lee, Kwan-Ho Kim, Keum-Chan Whang, ' Wideband channel impulse response measurement method using PN sequence for the medium voltage power distribution line channel', Proceedings of the 8th ISP LC, 2004
10 이재조, 유정훈, 홍충선, 이대영, '고압 전력선 통신을 위한 임피던스 측정 및 정합 방안 연구', 대한전기학회 논문집 53D권 5호 pp.345-351, 2004   과학기술학회마을
11 M. Gebhardt, F. Weinmann, and K. Dostert, 'Physical and regulatory constraints for communication over the power supply grid', IEEE Communications Magazine, Vol. 41, No.5, pp 84-90, 2003   DOI   ScienceOn
12 Jae-Jo Lee, Won-Tae Lee, Kwan-Ho Kim, Dae-Young Lee, 'Development of PLC sup scriber networks on the medium voltage power grid', International Conference on Electriad Engineering (ICEE), 2002
13 David K. Cheng, Field and Wave Electromagnetics, Addison Wesley, p.164-166, p.444-446