IEEE Guide for Power-Line Carrier Applications

doi:10.1109/ieeestd.2005.96284

Cited by 3 publications

(2 citation statements)

References 128 publications

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“…1) High voltage: The coupling capacitor is the most widely used component which enables the signal coupling to and from the HV power cable [110]. Standards have been established for ratings and tests power capacitor (i.e., isolation) which must be met by coupling capacitors in HV.…”

Section: B Based On Voltage Levelmentioning

confidence: 99%

Coupling for Power Line Communications: A Survey

Costa¹,

Queiroz²,

Adebisi³

et al. 2017

JCIS

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The advent of power line communication (PLC) for smart grids, vehicular communications, internet of things and data network access has recently gained ample interest in industry and academia. Due to the characteristics of electric power grids and regulatory constraints, the effectiveness of coupling between the power line and PLC transceivers has become a very important issue. Coupling devices used to inject or extract data communication signals into or from power lines are very important components of a PLC system. There is, however, an obvious gap in the literature for a detailed review of existing PLC couplers. In this paper, we present a comprehensive review of couplers, which are required for narrowband and broadband PLC transceivers. Prevailing issues that protract the design of couplers and consequently subtended the inventions of different types of couplers are clearly described. We also provide a useful classification of PLC couplers based on the type of physical couplings, voltage levels, frequency bandwidth, propagation modes and a number of connections. This survey will guide researchers, as well as designers alike, into a quicker resourcing when studying coupling in narrowband and broadband PLC systems.

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Section: B Based On Voltage Levelmentioning

confidence: 99%

Coupling for Power Line Communications: A Survey

Costa¹,

Queiroz²,

Adebisi³

et al. 2017

JCIS

View full text Add to dashboard Cite

show abstract

“…The medium is reliable, secure, and uses frequency signals between 30 kHz and 500 kHz, with a baud rate of 9600. PLCC was installed and tested on 220/230, 110/115 and 66 kV power lines [40][41][42]. This technology can cover distance of 200 m with data rate >1 Mbps, or distance >3 km with data rate between 10 and 500 Kbps [37,43].…”

mentioning

confidence: 99%

Communication Requirements for a Hybrid VSC Based HVDC/AC Transmission Networks State Estimation

et al. 2021

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The communication infrastructure of the modern Supervisory, Control and Data Acquisition (SCADA) system continues to enlarge, as hybrid High Voltage Direct Current (HVDC)/Alternating Current (AC) networks emerge. A centralized SCADA faces challenges to meet the time requirements of the two different power networks topologies, such as employing the SCADA toolboxes for both grids. This paper presents the modern communication infrastructure and the time requirements of a centralized SCADA for hybrid HVDC/AC network. In addition, a case study of a complete cycle for a unified Weighted Least Squares (WLS) state estimation is tested on a hybrid HVDC/AC transmission network, based on Voltage Source Converter (VSC). The cycle estimates the elapsed times from the sensors up to the SCADA side, including the data acquisition and the WLS processing times. The case study is carried out on the Cigre B4 DC test case network with 43 virtual Remote Terminal Unit (RTU)s installed and 10 data concentrators, all connected through a fiber-based communication network. It is concluded that the time requirements can be fulfilled for a hybrid HVDC/AC network.

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A sub-μs accuracy GPS alternative using electrical transmission grids as precision timing networks

Robson,

Haddad

2024

Sci Rep

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It is widely recognised that over-reliance on GNSS (e.g GPS) for time synchronisation represents an acute threat to modern society, and a diversity of alternatives are required to mitigate the threat of an outage. This paper proposes a GNSS alternative using time dissemination over national scale transmission or distribution networks. The method utilises the same frequency bandwidth and coupling technology as established power line carrier technology in conjunction with modern chirp Spread Spectrum modulation. The basis of the method is the transmission of a time synchronised chirp from a central substation, coupled into the aerial modes of the transmission line. During GNSS operation, all substations can estimate the time of flight by correlating the received chirp with a time-synchronised local copy. During GNSS outage, time sychronisation to the central substation is maintained by correcting for the precalculated time of flight. It is shown that recent advances in chirp spread spectrum allow for a computationally efficient algorithm with the capacity to compute hundreds of thousand of chirp correlations every second, facilitating timing accuracy which satisfies the majority of smart grid applications. ATP-EMTP simulations of the method on large transmission networks demonstrate sub-μs timing accuracy even in the presence of low SNR and impulsive noise. An FPGA prototype demonstrates experimentally sub-μs accuracy for time dissemination over a distance of 700 m. Averaging over time is shown to facilitate satisfactory performance down to $$-20\,\hbox {dB}$$ - 20 dB , which could extend the range of the system to a national scale and a time dissemination network invulnerable to wireless spoofing and jamming attack vectors.

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IEEE Guide for Power-Line Carrier Applications

Cited by 3 publications

References 128 publications

Coupling for Power Line Communications: A Survey

Coupling for Power Line Communications: A Survey

Communication Requirements for a Hybrid VSC Based HVDC/AC Transmission Networks State Estimation

A sub-μs accuracy GPS alternative using electrical transmission grids as precision timing networks

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