Controlling power distribution at deadband states

A power plant controller, comprising:

• an I/O interface configured for communication with one or more wind turbine generators;
• a memory containing instructions;
• at least one processor which, when programmed with the instructions, is configured to perform an operation for controlling the one or more wind turbine generators, the operation comprising:
• monitoring an electrical parameter of a power network to which the one or more wind turbine generators are connected with respect to a deadband for the electrical parameter;
• determining a first deviation state when the electrical parameter is within the deadband;
• determining a second deviation state when the electrical parameter is outside of the deadband and a quantified severity of a deviation of the electrical parameter outside of the deadband is less than a threshold value;
• determining a third deviation state when the electrical parameter is outside of the deadband and the quantified severity is at or greater than the threshold value;
• and
• selectively implementing a parameter control mode for the third deviation state when the electrical parameter is outside of the deadband and the severity is at or greater than the threshold value, wherein in the parameter control mode, one or more power set points are determined based on a value of the electrical parameter and are dispatched to controllers of the one or more wind turbine generators for controlling the wind turbine generators.