Frequency Characteristics Measurement of Overhead High-Voltage Power-Line in Low Radio-Frequency Range

Zajc, Matej; Suljanović, Nermin; Mujčić, Aljo; Tasič, J.F.

doi:10.1109/tpwrd.2007.905369

Cited by 23 publications

(13 citation statements)

References 6 publications

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“…A typical case of 150 kV single-circuit overhead HV transmission line is depicted in Figure 1 This three-phase five-conductor (n 150 kV = 5) overhead HV distribution line configuration is considered in the present work consisting of ACSR GROSBEK 3 × 374.77 mm 2 + 2 × 322.26 mm 2 conductors [13,[49][50][51].…”

Section: The Physical Bpl Layermentioning

confidence: 99%

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Broadband Transmission and Statistical Performance Properties of Overhead High-Voltage Transmission Networks

Lazaropoulos

2012

Journal of Computer Networks and Communications

127

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This paper considers broadband signal transmission and statistical performance properties of high-voltage/broadband over power lines (HV/BPL) channels associated with overhead power transmission. The overhead HV/BPL transmission channel is investigated with regard to its spectral behavior, its end-to-end signal attenuation, and its statistical performance metrics. It is found that the above features depend critically on the frequency, the overhead HV power grid type (150 kV, 275 kV, or 400 kV and single-or double-circuit), the coupling scheme applied, the physical properties of the cables used, the MTL configuration, and the type of branches existing along the end-to-end BPL signal propagation. The contribution of this paper is threefold. First, the significant broadband transmission potential of overhead HV lines is revealed. The results demonstrate that, regardless of overhead HV power grid type, the overhead HV grid is a potentially excellent communications medium, offering low-loss characteristics, flat-fading features, and low multipath dispersion over a 25 km repeater span well beyond 100 MHz. Second, regarding the statistical properties of various overhead HV/BPL transmission channels, two fundamental correlations of several wireline systems, for example, coaxial cables and xDSL, are also validated in the case of overhead HV/BPL transmission channels, namely, (i) end-toend channel attenuation in relation with root-mean-square delay spread (RMS-DS) and (ii) coherence bandwidth (CB) in relation with RMS-DS. Third, fitting the numerical results and other field trial measurements, two regression distributions suitable for each fundamental correlation are proposed.

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Section: The Physical Bpl Layermentioning

confidence: 99%

“…Overhead 400 kV double-circuit overhead HV transmission phase lines with radii r 400 kV [13,[49][50][51][52].…”

Section: The Physical Bpl Layermentioning

confidence: 99%

Broadband Transmission and Statistical Performance Properties of Overhead High-Voltage Transmission Networks

Lazaropoulos

2012

Journal of Computer Networks and Communications

127

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“…HV overhead power lines radiate energy at high frequencies and interfere with other systems operating at the same frequencies. In Europe, the frequency range devoted to HV PLC system is from 30 kHz to 500 kHz [12][13][14]. HV PLC systems are not permitted to operate in the broadband, but rather in the frequency range which is a multiple of 4 kHz bands to limit the interference.…”

Section: From Hv Plc Systems To Advanced Power-line Monitoring Applicmentioning

confidence: 99%

“…The distance is limited by the noise, generated by corona phenomena (discharges generated by rated high voltage) and interfering signals [12][13][14]. Even though corona noise intensity varies with power frequency voltage, it doesn't make huge impact on ultra-narrow band systems.…”

Section: From Hv Plc Systems To Advanced Power-line Monitoring Applicmentioning

confidence: 99%

Communication Characteristics of Faulted Overhead High Voltage Power Lines at Low Radio Frequencies

2017

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This paper derives a model of high-voltage overhead power line under fault conditions at low radio frequencies. The derived model is essential for design of communication systems to reliably transfer information over high voltage power lines. In addition, the model can also benefit advanced systems for power-line fault detection and classification exploiting the phenomenon of changed conditions on faulted power line, resulting in change of low radio frequency signal propagation. The methodology used in the paper is based on the multiconductor system analysis and propagation of electromagnetic waves over the power lines. The model for the high voltage power line under normal operation is validated using actual measurements obtained on 400 kV power line.

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“…Moreover, two parallel neutral conductors spaced by Δ 150 kV n hang at heights h 150 kV n -conductors 4 and 5-(for more details see [2]). This three-phase five-conductor (n 150 kV = 5) overhead HV distribution line configuration is considered in the present work consisting of ACSR GROSBEK 3 × 374.77 mm 2 + 2 × 322.26 mm 2 conductors [1,2,[14][15][16][51][52][53][54].…”

Section: Overhead Hv Transmission Power Networkmentioning

confidence: 99%

Review and Progress towards the Common Broadband Management of High-Voltage Transmission Grids: Model Expansion and Comparative Modal Analysis

Lazaropoulos

2012

ISRN Electronics

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The need of bridging the digital gap between underdeveloped/developed areas and promoting smart grid (SG) networks urges the deployment of broadband over power lines (BPL) systems and their further integration. The contribution of this paper is fourfold. First, based on the well-established hybrid model of (Lazaropoulos and Cottis 2009 and the generic multidimensional network analysis tool presented in , Sartenaer 2004, Sartenaer and Delogne 2006, 2001) an exact multidimensional chain scattering matrix method, which is suitable for overhead high-voltage/broadband over power lines (HV/BPL) networks, is proposed and is evaluated against other theoretical and experimental proven models. Second, the proposed method investigates the overhead HV/BPL transmission grids (overhead 150 kV single-circuit, 275 kV double-circuit, and 400 kV double-circuit multiconductor structures) with regard to their end-to-end signal attenuation. It is found that the above features depend drastically on the overhead power grid type, the frequency, the MTL configuration, the physical properties of the cables used, the end-to-end distance, and the number, the length, and the terminations of the branches encountered along the end-toend BPL signal propagation. Third, the impact of the multiplicity of the branches at the same junction in overhead HV grids is first examined. Based on the inherent long-branch structure and the quasi-static behavior of single/multiple branches with matched terminations of overhead HV grid, a simple approach suitable for overhead HV/BPL channel estimation is presented. Fourth, identifying the similar characteristics among different overhead HV/BPL configurations, an additional step towards the common overhead HV/BPL analysis is demonstrated; the entire overhead HV/BPL grid may be examined under a common PHY framework regardless of the overhead HV/BPL grid type examined. Finally, apart from the presentation of broadband transmission potential of the entire overhead transmission power grid, a consequence of this paper is that it helps towards: (i) the better broadband monitoring and management of overhead HV transmission power grids in an interactive SG network; and (ii) the intraoperability/interoperability of overhead HV/BPL systems under the aegis of a unified transmission/distribution SG power network.

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Frequency Characteristics Measurement of Overhead High-Voltage Power-Line in Low Radio-Frequency Range

Cited by 23 publications

References 6 publications

Broadband Transmission and Statistical Performance Properties of Overhead High-Voltage Transmission Networks

Broadband Transmission and Statistical Performance Properties of Overhead High-Voltage Transmission Networks

Communication Characteristics of Faulted Overhead High Voltage Power Lines at Low Radio Frequencies

Review and Progress towards the Common Broadband Management of High-Voltage Transmission Grids: Model Expansion and Comparative Modal Analysis

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