Patent ID: 11907000
Assignee: NEXTRACKER LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 10:
11. A PV bus system, comprising:
a central inverter unit;
a plurality of PV buses coupled to the central inverter unit;
a plurality of PV strings coupled to the central inverter unit via the plurality of PV buses, respectively;
a plurality of batteries coupled to the plurality of PV buses, respectively; and
a plurality of DC/DC controllers coupled between the plurality of batteries and the plurality of PV buses, respectively, each of the plurality of DC/DC controllers comprising:
a processor; and
a memory having stored thereon instructions, which, when executed by the processor, cause a DC/DC controller to:
determine that a local maximum power point tracking (MPPT) control is enabled;
in response to determining that the local MPPT control is enabled, start an MPPT mode timer;
perform MPPT;
determine that the MPPT mode timer is greater than a predetermined period; and
in response to determining that the MPPT mode timer is greater than a predetermined period, hand off MPPT control mode to a next DC/DC controller.