TY - JFULL AU - P. Ruttanee and K-N. Areerak and K-L. Areerak PY - 2011/1/ TI - Averaging Model of a Three-Phase Controlled Rectifier Feeding an Uncontrolled Buck Converter T2 - International Journal of Electrical and Computer Engineering SP - 1660 EP - 1668 VL - 5 SN - 1307-6892 UR - https://publications.waset.org/pdf/9722 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 60, 2011 N2 - Dynamic models of power converters are normally time-varying because of their switching actions. Several approaches are applied to analyze the power converters to achieve the timeinvariant models suitable for system analysis and design via the classical control theory. The paper presents how to derive dynamic models of the power system consisting of a three-phase controlled rectifier feeding an uncontrolled buck converter by using the combination between the well known techniques called the DQ and the generalized state-space averaging methods. The intensive timedomain simulations of the exact topology model are used to support the accuracies of the reported model. The results show that the proposed model can provide good accuracies in both transient and steady-state responses. ER -