METHODS AND APPARATUS FOR CONTROLLING OPERATION OF PHOTOVOLTAIC POWER PLANTS

摘要

A photovoltaic power plant (200) includes a photovoltaic inverter (110) that converts direct current generated by solar cells to alternating current. The output of the photovoltaic inverter (110) is provided to a point of interconnection (204) to a power grid. A meter (205) at the point of interconnection may be read to detect the output of the photovoltaic inverter (110) at the power grid. The photovoltaic power plant (200) includes a plant controller (202) with a state machine (400). The plant controller (202) is configured to adjust setpoints of the photovoltaic inverter (110) to control the output of the photovoltaic power plant (200). The plant controller (202) is also configured to soft start and soft stop automatic voltage regulation (AVR) of the photovoltaic power plant (200) to prevent perturbing the AVR.