Power Line Communication (PLC)

Power Line Communication (PLC) allows for data communication to be conducted through conductors that are simultaneously used for transmitting power.

PLC operates by adding a modulated carrier signal, which is formed by superimposing the data signal on a low-frequency power signal. The electrical signal is transmitted at50 – 6Transmission at a frequency of 0 Hz, while data signals are transmitted at MHz frequencies.

PLC is also known as Power Line Carrier, Power Line Digital Subscriber Line (PDSL), or Power Line Network (PLN).

PLC Types:}

• Narrowband PLC: They operate at3-500KHz lower frequencies. They have lower data rates but can cover distances up to several kilometers. They are used for smart grids.

• Broadband PLC: They operate at2 - 25Operate at a high frequency of 0MHz and have more than10High data rate of 0 Mbps. They are used for short distances. They are used for home automation.

Applications of Power Lines

• Home Network (LAN): The existing home wiring can be used for LAN connections within the home, so no dedicated network cables need to be set up. Communication devices should have Ethernet ports. An Ethernet connection is established by plugging a power line adapter into the power outlet.

• Power Line Broadband (BPL): It transmits bidirectional signals between transformers through AC medium-voltage distribution lines, as well as through AC low-voltage lines between transformers and customer outlets.

• Vehicle Network Communication: Digital signals are transmitted through the DC battery lines within the vehicle.