Within this paper, a PLC system that takes advantage of the loop resonance of an entire
DC-PV string configured as a circular signal path is developed and implemented. Low cost
and extremely simple transceivers intended to be installed within each PV module of a string
have been designed and successfully tested. In addition, an anti-saturation coil has been conceived
to avoid saturation of the core when the entire DC current of the string flows through it.
Bi-directional half-duplex communication was successfully executed with up to a 1 MHz carrier
frequency (150 kbps bitrate), using a simple ASK modulation scheme. The transmission and reception
performance are presented, along with the overall system cost in comparison to the previous literature.The Universidad dee Valladolid with the predoctoral contracts of 2020 co-funded by Santander Bank.https://www.mdpi.com/journal/sensorsam2023Electrical, Electronic and Computer Engineerin
