A channel model for power line communication using 4PSK technology for diagnosis: Some lessons learned

Mishra, Madhav; Riet, Maarten van

doi:10.1016/j.ijepes.2017.09.020

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…termination earth connection, which forces the quasi-commonmode current through the sheath, returning via other conductors and/or physical earth, e.g. [21], [22]. Take note that parasitic or discrete capacitors are often responsible for completing the current loop between the sending conductor and the return conductor.…”

Section: Inductive Coupling Topologiesmentioning

confidence: 99%

Design of a Current-Transformer Based Inductive Coupler for Power-Line Communications

Rensburg

Watkins²,

Alahakoon

2023

IEEE Trans. Power Delivery

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In this paper, the design of a current-transformer based inductive coupler for power-line communications is documented. A worst-case design is presented in a step-by-step fashion and experimentally confirmed by doing verification measurements in the laboratory as well as live, 240-V tests in a controlled environment. Although field deployment of inductive couplers usually relies on parasitic capacitance and/or surge protection capacitors to complete the current loop, in this controlled experimental setup various discrete loop capacitors were utilized to characterize the impact on transmission. A bandpass filtering response was achieved without any external filter circuitry, as internal coupler parasitic parameters were utilized for this. For the single-coupler laboratory measurements, both the lower and upper cut-off point results were approximately within 10 % of predicted values. These results are quite encouraging, seeing that coupler core permeability is specified with a ± 20 % tolerance. Live tests showed that (i) cable length (series inductance) impacts on the upper cut-off point of the system passband, while (ii) loop capacitance affects the lower cut-off point of the system passband. 1

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Section: Inductive Coupling Topologiesmentioning

confidence: 99%

Design of a Current-Transformer Based Inductive Coupler for Power-Line Communications

Rensburg

Watkins²,

Alahakoon

2023

IEEE Trans. Power Delivery

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“…Narrowband power line communications based on FSK or N-PSK digital modulations have been used for many decades, mainly for smart metering and automation purposes [1,38]. The development of a variety of new services and applications included in smart grid frameworks requires greater reliability.…”

Section: Digital Modulations For Plc In Smart Grid Applicationsmentioning

confidence: 99%

“…Inductive PLC couplers for MV systems are usually based on an openable magnetic core. Thus, they can be easily positioned around the MV cable also ensuring galvanic isolation [1,44]. Since no direct electric connection is requested, the installation is very easy and does not require service interruptions.…”

Section: Coupling System For G3-plc In MV Networkmentioning

confidence: 99%

“…The need of a communication system is a fundamental requirement for modern medium voltage (MV) distribution networks, where, in the near future, a high increase of information exchanges is expected between distribution system operators (DSO), users, and prosumers for the implementation of innovative applications, such as secondary substation automation, monitoring of energy flows, distributed generation, energy storage systems interaction, and so on [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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A New Coupling Solution for G3-PLC Employment in MV Smart Grids

et al. 2019

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This paper proposes a new coupling solution for transmitting narrowband multicarrier power line communication (PLC) signals over medium voltage (MV) power lines. The proposed system is based on an innovative PLC coupling principle, patented by the authors, which exploits the capacitive divider embedded in voltage detecting systems (VDS) already installed inside the MV switchboard. Thus, no dedicated couplers have to be installed and no switchboard modifications or energy interruptions are needed. This allows a significant cost reduction of MV PLC implementation. A first prototype of the proposed coupling system was presented in previous papers: it had a 15 kHz bandwidth useful to couple single carrier PSK modulated PLC signals with a center frequency from 50–200 kHz. In this paper, a new prototype is developed with a larger bandwidth, up to 164 kHz, thus allowing to couple multicarrier G3-PLC signals using orthogonal frequency division multiplexing (OFDM) digital modulation. This modulation ensures a more robust communication even in harsh power line channels. In the paper, the new coupling system design is described in detail. A new procedure is presented for tuning the coupling system parameters at first installation in a generic MV switchboard. Finally, laboratory and in-field experimental test results are reported and discussed. The coupling performances are evaluated measuring the throughput and success rate in the case of both 18 and 36 subcarriers, in one of the different tone masks standardized for the FCC-above CENELEC band (that is, from 154.6875–487.5 kHz). The experimental results show an efficient behavior of the proposed coupler allowing a two-way communication of G3-PLC OFDM signals on MV networks.

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Networking of Smart Meters Based on Time‐Varying Feature of Low‐Voltage Power Line Channel in Microgrid

Huang

Zhang

et al. 2021

Complexity

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In order to manage the electricity consumption information of microgrid users, the reliability of electricity information collection is studied in this paper. The normal communication between the acquisition terminal and the smart meter is a key factor affecting the accurate collection of power information; it is the basis for ensuring the operation of the microgrid as well. In order to improve the reliability of the low power line communication between the acquisition terminal and smart meters, this article first uses the static networking method to layer the smart meters and select relays from them and then select the optimal communication path based on integrating communication quality and relay forwarding number dynamically, which could avoid the signal conflict problem caused by simultaneous communication. Finally, by analyzing the influence of the time-varying power line channel on the smart meter communication, a method based on the integrated communication quality and the relay number to consider the time variability of low power line communication is proposed. Choosing the optimal path of the smart meters when the communication path is abnormal can not only establish a new communication path for communication in time, but also avoid communication failures caused by the time-varying channel. Through MATLAB simulation, the time-varying dynamic network of the power line channel is introduced in this paper, which improves the reliability of the smart meter communication and has certain guiding significance for the actual smart meter network construction in microgrid.

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A channel model for power line communication using 4PSK technology for diagnosis: Some lessons learned

Cited by 4 publications

References 12 publications

Design of a Current-Transformer Based Inductive Coupler for Power-Line Communications

Design of a Current-Transformer Based Inductive Coupler for Power-Line Communications

A New Coupling Solution for G3-PLC Employment in MV Smart Grids

Networking of Smart Meters Based on Time‐Varying Feature of Low‐Voltage Power Line Channel in Microgrid

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