Experimental Study of the Effect of Damper Windings on Synchronous Generator Hunting
(English)In: Electric power components and systems, ISSN 1532-5008, E-ISSN 1532-5016Article in journal (Refereed) Submitted
The performance of different damper winding designs with respect to the suppression of hunting is studied. The effect of an inter-pole connection between the pole damper cages on the damping capability of a 75 kVA salient-pole synchronous generator is determined experimentally. Results from tests are further compared with transient electromechanical responses obtained in simulations of the test system. The accuracy of the system model as regards electromechanical transient modeling is assessed and specific modeling challenges are highlighted. It is concluded that a high natural damping capability typically is assured if there exists a low-impedance path between the pole damper cages.
Damper winding, damping torque, single-machine infinite bus system, synchronous generator
Research subject Engineering Science with specialization in Science of Electricity
IdentifiersURN: urn:nbn:se:uu:diva-146608OAI: oai:DiVA.org:uu-146608DiVA: diva2:398547