Patent ID: 8922048
Filing Date: 2014-12-30
Classification: H02J,H04B,Y02E,Y04S

Abstract:
1. A photovoltaic (PV) sub-generator junction box for a PV system, comprising: a plurality of electrical terminals for connection to respective PV string lines of at least one series-connected PV module; and a sub-generator line terminal for connection to a remote central PV inverter; an electronic control unit connected for data communication to a central control unit within the remote central PV inverter for exchange of data; wherein the PV sub-generator line is configured to deliver power received from respective PV string lines to the remote central PV inverter; and a power line modem configured to transmit and receive the data over the PV sub-generator line that delivers power; wherein the electronic control unit includes at least one electrical output for activating at least one switching device of the PV sub-generator junction box, and wherein the data receivable from the central control unit within the PV inverter by the power line modem comprises corresponding control data.