Title: Numerical state-space average-value modeling of PWM dc-dc converters operating in DCM and CCM
Authors: Davoudi, Ali ×
Jatskevich, Juri
De Rybel, Tom #
Issue Date: Jul-2006
Publisher: Ieee-inst electrical electronics engineers inc
Series Title: Ieee transactions on power electronics vol:21 issue:4 pages:1003-1012
Abstract: State-space average-value modeling of pulsewidth modulation converters in continuous and discontinuous modes has received significant attention in the literature, and various models have been developed. This paper presents a new approach for generating the state-space average-value model. In the proposed methodology, the so-called duty-ratio constraint and the correction term are extracted numerically using the detailed simulation and are expressed as nonlinear functions of the duty cycle and average-value of the fast state variable. The parasitic effects of circuit elements are readily included. The resulting average-value model is compared to a hardware prototype, a detailed simulation, and several previously published models. The proposed model is shown to be very accurate in predicting the large-signal time-domain transients as well as the small-signal frequency-domain characteristics.
ISSN: 0885-8993
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - ELECTA, Electrical Energy Computer Architectures
× corresponding author
# (joint) last author

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