Patent ID: 8614525

Claim:
A photovoltaic (PV) power generation system, comprising: a plurality of PV collector units, each of the plurality of PV collector units comprising at least one PV cell and a collector-side single-phase inverter, the plurality of PV collector units each configured for coupling with an electrical grid via at least one transmission line; a grid-side inverter coupled between the at least one collector-side single-phase inverter of each PV collector unit and the electrical grid, the grid-side inverter configured to receive a single-phase alternating current (AC) output by each collector-side single-phase inverter and to provide a poly-phase AC to the electrical grid; and, a system controller communicatively coupled to each PV collector unit and to the grid-side inverter, the system controller configured to: separately coordinate operation of each of the plurality of PV collector units and the grid-side inverter; separately control real and reactive power applied to each phase of the poly-phase AC applied to the electrical grid; and, control operation of the plurality of PV collector units through at least one of a low voltage ride through (LVRT) event and a zero voltage ride through (ZVRT) event.