System and method for adjusting reactive power response of one or more wind turbines of a wind farm during a communications fault

A system for controlling a wind farm having a plurality of wind turbines electrically connected to an electrical grid at a point of interconnection, the system comprising:

• a farm-level controller;
• a plurality of turbine-level controllers communicatively coupled to the farm-level controller, each of the plurality of turbine-level controllers comprising at least one processor, the at least one processor configured to perform operations, the operations comprising:
• receiving, via one or more of the plurality of turbine-level controllers, an indication of at least one of a communication loss between one or more of the plurality of turbine-level controllers and the farm-level controller, a detection of an absence of reactive power regulation by the farm-level controller, or a reactive power command of the farm-level controller being equal to or above a saturation threshold during transitioning between a baseline operational mode and reactive power mode, the reactive power mode being characterized in that only reactive power is generate;
• and
• upon receipt of the indication, adjusting a reactive power response of one or more reactive power regulators of one or more of the plurality of turbine-level controllers so as to avoid an overshoot reactive power event or an undershoot reactive power event at the point of interconnection.