Technical and practical examination of Modulations in PLC communication systems

Analog PLC systems are used in electrical installations to communicate for the purposes of remote protection, sending and receiving data, fax or telephone conversations, which are generally used in high-voltage power transmission lines. The modulation arrangement that is used for this type of system is the SSB range modulation, in which one or more telephone channels are transmitted on a carrier signal, and the frequency range of this carrier signal is from ۲۰ kHz to ۵۰۰ kHz, and sometimes up to ۱ MHz. increases. In this article, the function of PLC and the mode of coupling are examined and then the place of modulation is examined and analyzed.

Keywords:

analog PLC , SSB modulation , OFDM modulation