If the driving torque, such as that produced by a diesel engine, creates pulsations when coupled with a synchronous generator operating in parallel, the generator rotor may be periodically pulled ahead or behind its normal position as it rotates. How can this condition called hunting be reduced?

Question

Accepted Answer

Option A: by the use of amortisseur windings. Amortisseur (damper) windings embedded in synchronous generator pole faces provide damping torque that suppresses rotor oscillations, effectively mitigating hunting caused by prime mover torque pulsations during parallel operation.