Coupling

Kikkert, C.J. (2016) Coupling. In: Lampe, Lutz, Tonello, Andrea M., and Swart, Theo G., (eds.) Power Line Communications: principles, standards and applications from multimedia to smart grid. Wiley-Blackwell, Chichester, UK, pp. 223-258.

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Abstract

[Extract] In this chapter, we consider coupling of power line communication (PLC) signals to and from low voltage (LV), medium voltage (MV) and high voltage (HV) power lines. Typically HV covers voltages from 66 kV and above, MV covers from 7.2 kV to 33 kV and LV covers110 V to 400 V. A PLC coupler allows us to connect a PLC modem to HV/MV/LV power lines and inject a PLC signal to be transmitted onto the power line, with a low coupling loss. The same coupler also allows us to recover a PLC signal to be received from the power line with a sufficient signal-to-noise ratio (SNR) to permit the error free decoding of the PLC signal. The power lines used for PLC can be above ground power lines on towers or poles and they can be underground cables. Figure 4.1 shows a basic PLC system for automated meter reading(AMR), including the couplers. The coupler has to protect both humans and the PLC modems from the mains voltages, which vary from 110 V for LV power lines to 1000 kV for HV powerlines.

Item ID: 44490
Item Type: Book Chapter (Research - B1)
ISBN: 978-1-118-67671-4
Date Deposited: 18 Jun 2017 23:41
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090607 Power and Energy Systems Engineering (excl Renewable Power) @ 100%
SEO Codes: 85 ENERGY > 8506 Energy Storage, Distribution and Supply > 850601 Energy Services and Utilities @ 100%
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