Modeling and Control of Single-Stage Quadratic-Boost Split Source Inverters

This paper aims to develop the recently introduced Spilt-Source Inverter (SSI) topology improve its boosting characteristics. New SSI topologies with high voltage gain are in this paper. The proposed converters square basic SSI’s factor by utilizing an additional inductor, capacitor, and two diodes. Thus, called Quadratic-Boost (or Square-Boost) SSIs (QBIs or SBIs). Four different QBI presented. One continuous input current (CC-QBI), other draws a discontinuous (DC-QBI) but reduced capacitor stresses. also introduces small-signal model of CC-QBI using state variables perturbance. Based on model, closed-loop control approach dc-boosting designed. Moreover, modified space vector modulation (MSVM) scheme is presented reduce ripples. To evaluate performance topologies, comparative study between them counterpart from perspectives introduced. It can be found that has superior characteristics when operating low compared their counterparts. higher capability, lower voltages, semiconductor stresses, especially gains required. These merits make convenient Photovoltaic Fuel-Cell systems. Finally, feasibility suggested mathematical verified via simulation experimental results, which show good accordance theoretical analysis.