Small Signal Modeling of Interleaved Quasi-Z-Source Inverter with Active Power Decoupling Circuit

Abstract

copy>978-1-5386-6903-7/18/$31.00 ©2018 IEEEFocus is on small signal modeling and analysis of a single-phase interleaved quasi-z-source inverter (QZSI) with active-power decoupling (APD) circuit. The QZSI-APD is featured by low input current ripple and low power ripple. Equivalent circuits for the main operation modes are presented and a dynamic model in the form of matrix equations is derived for describing the behavior of the converter. The model is used for adjustment of the passive components values and for the control system tuning. The simulation results that confirm efficient performance of the converter are presented and discussed.