TY - GEN
T1 - Small-signal modeling of PWM Z-source converter by circuit-averaging technique
AU - Galigekere, Veda Prakash
AU - Kazimierczuk, Marian K.
PY - 2011
Y1 - 2011
N2 - This paper presents the small-signal modeling of pulse-width modulated (PWM) Z-source converter (ZSC) operating in continuous conduction mode (CCM) by circuit averaging technique. The averaged large-signal, dc, and time-invariant linear small-signal circuit models of PWM ZSC power stage operating in CCM are derived. The small-signal modeling focuses on the dynamics introduced by the Z network present in the ZSC. Based on the small-signal model derived, the small-signal model required to derive the open-loop input-to-capacitor voltage transfer function is derived. The open-loop input-to-capacitor voltage transfer function is derived, and the associated theoretical Bode plots are illustrated using Matlab and is verified by circuit simulation. The theoretical results were in excellent agreement with the simulation results, validating the ac small-signal model and the derived input-to-capacitor voltage transfer function.
AB - This paper presents the small-signal modeling of pulse-width modulated (PWM) Z-source converter (ZSC) operating in continuous conduction mode (CCM) by circuit averaging technique. The averaged large-signal, dc, and time-invariant linear small-signal circuit models of PWM ZSC power stage operating in CCM are derived. The small-signal modeling focuses on the dynamics introduced by the Z network present in the ZSC. Based on the small-signal model derived, the small-signal model required to derive the open-loop input-to-capacitor voltage transfer function is derived. The open-loop input-to-capacitor voltage transfer function is derived, and the associated theoretical Bode plots are illustrated using Matlab and is verified by circuit simulation. The theoretical results were in excellent agreement with the simulation results, validating the ac small-signal model and the derived input-to-capacitor voltage transfer function.
KW - Circuit-averaging technique
KW - Z-source converter (ZSC)
KW - continuous conduction mode
KW - small-signal model
UR - http://www.scopus.com/inward/record.url?scp=79960876505&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2011.5937884
DO - 10.1109/ISCAS.2011.5937884
M3 - Conference contribution
AN - SCOPUS:79960876505
SN - 9781424494736
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 1600
EP - 1603
BT - 2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
T2 - 2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
Y2 - 15 May 2011 through 18 May 2011
ER -