Investigations on the noise generation phenomena in the PLC system of a long HVDC line

Moyo, N.M.; Ijumba, N.M.; Britten, A.C.

doi:10.1109/icpst.2002.1047540

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Today, although the more significant transformation to upcoming SG technology is expected to take place on the MV and LV distribution power grids, the HV transmission power grids will have to catch the train of upcoming BPL/SG changes [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Broadband Transmission Characteristics of Overhead High-Voltage Power Line Communication Channels

Lazaropoulos¹

2012

PIER B

127

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Abstract-This paper considers broadband signal transmission via high-voltage/broadband over power lines (HV/BPL) channels associated with overhead power transmission. To determine the end-to-end channel characteristics of various overhead HV/BPL multiconductor transmission line (MTL) configurations, the chain scattering matrix or T -Matrix (TM) method is adopted.The overhead HV/BPL transmission channel is investigated with regard to its spectral behavior, its end-to-end signal attenuation, and phase response. It is found that the above features depend critically on the frequency, 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. Unlike the older models that underestimate the broadband transmission potential of overhead HV lines significantly, the results demonstrate that the overhead HV grid is a potentially excellent communications medium, offering low loss characteristics over a 100 km repeater span well beyond 100 MHz and guarantees the imminent coexistence of lowvoltage (LV), medium-voltage (MV), and HV BPL systems towards a unified transmission/distribution smart grid (SG) power grid.

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Section: Introductionmentioning

confidence: 99%

Broadband Transmission Characteristics of Overhead High-Voltage Power Line Communication Channels

Lazaropoulos¹

2012

PIER B

127

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“…Apart from the power delivery, the availability of a reliable communication network on the HV power grid side is important for the support of the significant changes towards upcoming 2 ISRN Electronics SG transformations in transmission power networks [9,[17][18][19][20].…”

Section: Introductionmentioning

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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Investigations on the noise generation phenomena in the PLC system of a long HVDC line

Moyo

Ijumba

Britten³

Proceedings. International Conference on Power System Technology

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There are several means of carrying communications of long HVDC transmission lines. However, the Power Line Carrier (PLC) still plays an important role in the operation of some long HVDC transmission lines around the world. Some uses of the PLC include teleprotection and network data transmission between the converter stations of the HVDC transmission system. Above certain operational voltages of the HVDC system, high levels of noise are experienced in the PLC during the operation. This paper describes the phenomenon that leads to the high levels of noise in the PLC systems of long HVDC lines. It further describes the methodology and experimental work that has so far been conducted in investigating these phenomena. Index termscorona, HWC, noise, Power line Carrier, radio interference, space charge, test line. 0-7803-7459-2/02/$17.00 0 2002 I EEE

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Investigations on the noise generation phenomena in the PLC system of a long HVDC line

Cited by 4 publications

References 6 publications

Broadband Transmission Characteristics of Overhead High-Voltage Power Line Communication Channels

Broadband Transmission Characteristics of Overhead High-Voltage Power Line Communication Channels

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

Investigations on the noise generation phenomena in the PLC system of a long HVDC line

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