Title :
Modeling of an alternator using Stand Still Frequency Response Test
Author :
Hao, Lei ; Namuduri, Chandra
Author_Institution :
R&D Center, Gen. Motors, Warren, MI, USA
Abstract :
This paper proposes an equivalent circuit model of an alternator in d- and q-axes, and a Standstill Frequency-Response (SSFR) Test is employed to estimate model parameters. Unlike a conventional model, damper windings are introduced to represent the solid claw-pole rotor structure. The rotor saliency effect is also taken into account. Starting from a simpler model with one damper winding in d-axis and one damper winding in q-axis, several models are fitted using Levenberg-Marquadt method with weightings. Finally, a model with two damper windings in d-axis and two damper windings in q-axis was found to be the best fit model for the selected alternator.
Keywords :
alternators; equivalent circuits; frequency response; machine theory; machine windings; Levenberg-Marquadt method; alternator; d-axes; damper windings; equivalent circuit model; q-axes; rotor saliency effect; solid claw-pole rotor structure; stand still frequency response test; Alternators; Circuit testing; Damping; Equivalent circuits; Frequency estimation; Frequency response; Parameter estimation; Rotors; Shock absorbers; Solid modeling; Lundell Alternator; Standstill Frequency-Response;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE
Conference_Location :
Dearborn, MI
Print_ISBN :
978-1-4244-2600-3
Electronic_ISBN :
978-1-4244-2601-0
DOI :
10.1109/VPPC.2009.5289564
