Broadband Transmission via Underground Medium-Voltage Power Lines - Part I: Transmission Characteristics

被引：19

作者：

Lazaropoulos, Athanasios G. ^{[1
]}

Cottis, Panayiotis G. ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Sch Elect & Comp Engn, Athens, Greece

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2010年 / 25卷 / 04期

关键词：

Broadband over power lines (BPL) modeling; modal analysis; power-line communications; underground medium-voltage (MV) power lines; HIGH-FREQUENCY CHARACTERIZATION; EARTH RETURN IMPEDANCES; TRANSIENT ANALYSIS; LOAD IMPEDANCE; CONDUCTOR ARRANGEMENTS; SIMULATION-MODELS; MULTILAYER SOILS; GROUND RETURN; CABLE; CHANNEL;

D O I：

10.1109/TPWRD.2010.2048929

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The transmission characteristics of underground medium-voltage/broadband over power line (MV/BPL) channels are examined analytically. By appropriately modifying multiconductor transmission-line theory, the bottom-up approach, already used to treat overhead MV/BPL transmission, is extended to analyze BPL transmission in three-phase underground MV lines with common shield and armor. ThIS analysis shows that these cables may support five modes, giving rise to five separate transmission channels which reduce to three if the shield and armor are grounded. The numerical results concerning attenuation in underground MV/BPL channels have been validated against relevant sets of measurements and compared to the relevant results of overhead MV/BPL channels. It has been verified that the attenuation in underground MV/BPL channels exhibits a lowpass behavior and is significantly higher than that of overhead ones.

引用

页码：2414 / 2424

页数：11