Abstract
Aiming to bring attention to the necessity of dealing with the dynamics of access impedance in electric power systems, this paper introduces an adaptive impedance matching circuit that is based on an analog filter bank approach. In this sense, it describes a prototype that validates the proposed filter bank approach for improving impedance matching. Numerical results obtained with the detailed prototype operating in the frequency band between 2 and 500 MHz show that the proposed analog filter bank approach helps to improve impedance matching in power line communication (PLC) systems. Also, the numerical results show that the dynamics of impedance matching between two or more PLC transceivers is a difficult task to be accomplished because real-time coordination among them is necessary. Overall, it is shown that the proposed analog filter bank approach constitutes an interesting research direction for improving impedance matching between PLC transceivers and electric power systems.
Highlights
In the past few decades, power line communication (PLC) systems have proven themselves as an additional and effective data communication technologies since they allow the use of electric power system infrastructures as a means for data communication purposes [1]–[5]
Aiming to improve the impedance matching between PLC transceivers and electric power systems, this paper introduces the use of an analog filter bank approach to come up with feasible adaptive PLC coupling circuits
It is clear that the impedance matching between PLC transceivers and electric power systems demand the design of the adaptive PLC coupling circuits that are capable of detecting variations of access impedance of electric power systems and dynamically adjust the impedance of the coupling circuit
Summary
In the past few decades, power line communication (PLC) systems have proven themselves as an additional and effective data communication technologies since they allow the use of electric power system infrastructures as a means for data communication purposes [1]–[5]. Aiming to improve the impedance matching between PLC transceivers and electric power systems, this paper introduces the use of an analog filter bank approach to come up with feasible adaptive PLC coupling circuits In this sense, the filter bank-based impedance matching circuit measures the received signal’s power and compares it with a typical value memorized in a control unit.
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