System and method for controlling wind farm operation during a weak grid condition

A system for controlling wind farm operation during a weak grid condition, the system comprising:

• a plurality of wind turbines forming a wind farm;
• one or more sensors configured to capture data indicative of a power output of the wind farm;
• and,
• a computing system communicatively coupled to the one or more sensors, the computing system configured to:
• receive one or more inputs indicating that one or more wind turbines of the plurality of wind turbines have tripped;
• determine when a threshold number of the plurality of wind turbines have tripped based on the received one or more inputs;
• determine a sampled power output of the wind farm based on the data captured by the one or more sensors after it is determined that the threshold number of the plurality of wind turbines have tripped;
• and,
• control the operation of the one or more wind turbines of the plurality of wind turbines that have not tripped after it is determined that the threshold number of the plurality of wind turbines have tripped such that the power output of the one or more wind turbines of the plurality of wind turbines that have not tripped is less than or equal to the sampled power output.

A wind farm, comprising:

• a plurality of wind turbines, each wind turbine of the plurality of wind turbines including a tower, a nacelle mounted atop the tower, and a rotor having rotatable hub with at least one rotor blade mounted thereto;
• one or more sensors configured to capture data indicative of a power output of the wind farm;
• and,
• a computing system communicatively coupled to the one or more sensors, the computing system including a farm-level controller and a plurality of turbine controllers, each turbine controller of the plurality of turbine controllers being installed within one wind turbine of the plurality of wind turbines, the computing system configured to:
• receive one or more inputs indicating that one or more wind turbines of the plurality of wind turbines have tripped;
• determine when a threshold number of the plurality of wind turbines have tripped based on the received one or more inputs;
• determine a sampled power output of the wind farm based on the data captured by the one or more sensors after it is determined that the threshold number of the plurality of wind turbines have tripped;
• and,
• control the operation of the one or more wind turbines of the plurality of wind turbines that have not tripped after it is determined that the threshold number of the plurality of wind turbines have tripped such that the power output of the one or more wind turbines of the plurality of wind turbines that have not tripped is less than or equal to the sampled power output.