Genset engine paralleling controls, devices, systems, and methods

An electric power delivery system comprising:

• multiple genset engines;
• and
• multiple controllers, one distributed controller to control each of the multiple genset engines, and one centralized controller,
• the centralized controller comprising a first stage to receive frequency measurements and power measurements of a set of genset engines and determine a dispatch adjustment comprising a frequency setpoint based on the frequency measurements and power measurements;
• each distributed controller comprising:
• a second stage stage in communication with the first stage, the second stage comprising a double deadband droop filter to periodically generate a pulse based on the frequency setpoint and the power measurements, the second controller to update an inner loop setpoint based on the pulse;
• and
• a third stage in communication with the second stage, the third stage to alter a target fuel valve reference based on the inner loop setpoint generated by the second stage and a fuel valve droop.

A method for controlling a genset engine, the method comprising:

• determining a dispatch instruction for a genset engine based on a load composition, the dispatch instruction comprising a dispatch setpoint based on frequency measurements and power measurements;
• reducing the dispatch setpoint based on a droop rate and the frequency measurements and power measurements;
• filtering the reduced dispatch instruction with a double deadband droop filter;
• periodically generating a pulse based on an output of the of the double deadband droop filter to update an inner loop setpoint based on the pulse;
• and
• determining a target fuel valve reference based on the inner loop setpoint and a fuel valve droop.