Current Mode Communication Technique and Its Application to Solar Farm Monitoring

A technique that uses a wire loop as a medium for data communication is described. Signal in the loop is in the form of current. Communication circuits transmit or receive signal by using current transformers for coupling current signal in the loop. The circuit uses inductors and capacitors with formulae for maximizing signal at the carrier frequency. An important application of this technique in data transmission within a solar farm is described. An advantage of this technique in such application lies in the fact that no addition wiring is necessary. Preliminary study based on existing photovoltaic panels indicates that the carrier frequency between 200 kHz and 500 kHz is appropriate. Circuit performance is verified by simulation.