Motor control for gas engine replacement device

A gas engine replacement device, comprising:

• a housing;
• a vibration sensor;
• a battery receptacle coupled to the housing and configured to removably receive a battery pack;
• a motor located within the housing;
• a power take-off shaft receiving torque from the motor and protruding from a side of the housing;
• a power switching network configured to selectively provide power from the battery pack to the motor;
• and
• an electronic processor coupled to the power switching network and configured to control the power switching network to rotate the motor, the electronic processor configured to:
• receive a command speed for the motor,
• determine an output speed for the motor different than the command speed based on an output of the vibration sensor, and
• control the power switching network to rotate the motor in accordance with the determined output speed;
• wherein the electronic processor is configured to determine the output speed for the motor by:
• identifying a resonant frequency of a mechanical system coupled to the motor based on the output of the vibration sensor,
• generating an exclusion zone based on the identified resonant frequency, and
• setting the output speed for the motor based on whether the command speed is in or outside of the exclusion zone.