Year of Publication
Master of Science in Electrical Engineering (MSEE)
Dr. Aaron M. Cramer
An average-value model of a rotating rectifier circuit in a brushless excitation system is set forth, where a detailed simulation is required to extract the essential averaged-model parameters using numerical averaging. In the proposed approach, a synchronous machine model with saturation and cross saturation and an arbitrary rotor network representation that uses a voltage-behind-reactance representation for the field winding of the main machine is proposed. This allows the field winding to be represented as branches in a circuit solver, permitting straightforward simulation with connected circuitry. Also a brushless exciter model is introduced to be compatible with the averaged-model, where the exciter armature windings are represented using a voltage-behind-reactance formulation. The resulting average-value model is verified in time domain against detailed simulation, and its validity is demonstrated in all rectifier modes of operation.
Qunais, Thaer, "Parametric Average-Value Model of Rectifiers in Brushless Excitation Systems" (2013). Theses and Dissertations--Electrical and Computer Engineering. 37.