Circuital and Modal Characterization of the Power-Line Network in the PLC Band

Pérez, A.; Sánchez, Albert-Miquel; Regue, J.-R.; Ribó, M.; Aquilué, Rafael Santamaría; Rodriguez-Cepeda, P.; Pajares, F.-J.

doi:10.1109/tpwrd.2009.2014278

Cited by 28 publications

(19 citation statements)

References 18 publications

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“…• Apart from its frequency dependence, broadband transmission via underground LV/BPL networks depends drastically on the cable parameters, underground LV grid topology, national wiring and grounding practices, MV/LV transformer crosstalk, issues related to asymmetries of the line and the LV configuration parameters, coupling, leakage currents, and other imperfections [1,18,29,30,35,45,83,88].…”

Section: Approximate Solution For Underground Bpl Cables With Low Diementioning

confidence: 99%

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Towards Broadband Over Power Lines Systems Integration: Transmission Characteristics of Underground Low-Voltage Distribution Power Lines

Lazaropoulos¹

2012

PIER B

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Abstract-A complete methodology is employed to determine the transmission characteristics of low-voltage/broadband over power lines (LV/BPL) channels associated with underground power distribution networks, in the light of the multiconductor transmission line (MTL) theory. The established bottom-up approach, already used to treat overhead and underground MV/BPL transmission, is extended to analyze BPL transmission in three-phase N -conductor underground lines with common shield and armor. This analysis shows that these cables may support N + 2 modes, giving rise to N + 2 separate transmission channels which reduce to N +1 if the armor either does not exist or is grounded and to N if the shield is also grounded. In addition to the generalized analysis, a simplified approximation concerning three-phase N -conductor underground cables is also presented. Taking the generalized analysis and the simplified approximation into account, their numerical results concerning attenuation in various underground LV/BPL channels in the frequency range 1-100 MHz are validated against relevant sets of simulations and measurements with satisfactory accuracy and compared to corresponding results of overhead and underground MV/BPL channels. It has been verified that the attenuation in overhead and underground BPL channels depends drastically on power distribution grid type, MTL configuration, and cables used. Moreover, the attenuation in underground LV/BPL channels exhibits a lowpass behavior, is significantly higher than that of overhead MV/BPL ones, and is comparable to that of underground MV/BPL ones. A consequence of the proposed methodology is that it

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Section: Approximate Solution For Underground Bpl Cables With Low Diementioning

confidence: 99%

“…These eigenmodes correspond to specific distributions of voltages and currents propagating with their own attenuation coefficients and phase delays, independently from each other [24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Towards Broadband Over Power Lines Systems Integration: Transmission Characteristics of Underground Low-Voltage Distribution Power Lines

Lazaropoulos¹

2012

PIER B

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“…As usually done in BPL transmission, a hybrid model is employed to examine the behavior of BPL transmission channels installed on BPL multiconductor transmission line (MTL) structures [14,15,[24][25][26][27][28][29][30][31]. This hybrid model follows (i) a bottomup approach consisting of an appropriate combination of similarity transformations and MTL theory to determine the propagation constant and the characteristic impedance of the modes supported [24][25][26][27][28][29][30][31][32][33][34][35][36][37] and (ii) a top-down approach based on cascaded matrices of two-port network modulesthe T-matrix (TM) method-to determine the end-to-end attenuation of BPL channel connections [10,15,16,22,24,26,28,30,34,37,38]. The influence of factors, such as 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, the end-to-end distance, and the number and the electrical length encountered along the end-toend HV/BPL signal propagation, is investigated based on numerical results concerning simulated overhead HV/BPL topologies.…”

Section: Introductionmentioning

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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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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“…As mentioned in Section III, since the modes supported by the overhead HV/BPL configurations may be examined separately, it is assumed for simplicity that the BPL signal is injected directly into the EVD modes [5]- [7], [16]- [23], [53]- [56], [58]- [62], [72], [117].…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Policies for Carbon Energy Footprint Reduction of Overhead Multiple-Input Multiple-Output High Voltage Broadband over Power Lines Networks

Lazaropoulos

2015

Tr Ren Energy

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The impact of different environmental policies on the broadband performance of overhead multiple-input multiple-output high-voltage/broadband over power lines (MIMO/HV/BPL) networks is investigated in this paper. The examined environmental policies focus on the carbon energy footprint reduction of overhead MIMO/HV/BPL networks while respecting their broadband character. The contribution of this paper is three-fold. First, the spectral and environmental performance of various configurations and topologies of overhead MIMO/HV/BPL networks is assessed with regard to respective spectral efficient (SE) and newly presented environmental efficient (EE) metrics. Second, further insights regarding the performance of overhead MIMO/HV/BPL networks highlight the better spectral and environmental performance of these networks against other today's overhead HV/BPL networks, such as single-input single-output (SISO), single-input multiple-output (SIMO), or multiple-input single-output (MISO) ones. Third, the definition of appropriate environmental policies that optimize the coexistence of the three main sectors of concern, which are the Quality of Service (QoS) requirements, protection of existing radioservices and promotion of environmentally aware limits, is promoted. Towards that direction, the proposed SE/EE trade-off relation of this paper is expected to prove an extremely helpful SE/EE optimization technique.

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Circuital and Modal Characterization of the Power-Line Network in the PLC Band

Cited by 28 publications

References 18 publications

Towards Broadband Over Power Lines Systems Integration: Transmission Characteristics of Underground Low-Voltage Distribution Power Lines

Towards Broadband Over Power Lines Systems Integration: Transmission Characteristics of Underground Low-Voltage Distribution Power Lines

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

Policies for Carbon Energy Footprint Reduction of Overhead Multiple-Input Multiple-Output High Voltage Broadband over Power Lines Networks

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