Patent ID: 11870389
Assignee: INVENTUS HOLDINGS, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A controller of a power generation system that:
provides, in response to a request or a determination to initiate a heating mode for a photovoltaic (PV) array, a first instruction to an inverter coupled between the PV array and a power grid to apply an initial backfeed voltage on PV modules of the PV array, wherein the PV array comprises a plurality of strings of PV modules coupled in parallel, and a first subset of the strings of PV modules are online and a second subset of the strings of PV modules are offline;
monitors current data from a set of current sensors that each measure current provided from a corresponding set of strings of PV modules of the plurality of strings of PV modules of the PV array; and
provides a second command to the inverter to adjust the backfeed voltage such that the current data from at least one current sensor indicates that current flowing from the power grid to the corresponding set of strings of PV modules is below a safety threshold, wherein a current flowing to the corresponding set of PV modules is about equal to a current flowing to each of the first subset of strings of PV modules that are online, such that a surface temperature of each PV module in the first subset of strings of PV modules is increased.