The Rotating Field Method Applied to Damper Loss Calculation in Large Hydrogenerators
2010 (English)Conference paper (Refereed)
In this paper, we discuss key aspects of analytical rotating field models that can be used to estimate the damper losses in large hydrogenerators during steady load conditions. Model features of particular importance, like the saturation permeance and the structure of the damper circuit are described in greater detail. Damper currents extracted from the analytic model are found to be in good agreement with currents obtained from coupled field-circuit 2-D finite element calculations. The applicability of the model for damper current prediction during steady unbalanced load conditions is also demonstrated.
Place, publisher, year, edition, pages
Rome, Italy, 2010.
Damper winding, hydroelectric generators, losses, permeance model, rotating field method.
Engineering and Technology
Research subject Engineering Science with specialization in Science of Electricity
IdentifiersURN: urn:nbn:se:uu:diva-142511DOI: 10.1109/ICELMACH.2010.5607695OAI: oai:DiVA.org:uu-142511DiVA: diva2:387569
XIX International Conference on Electrical Machines (ICEM)