TY - GEN
T1 - High step-up continuous input current LCCT-Z-source inverters for fuel cells
AU - Adamowicz, Marek
AU - Guzinski, Jaroslaw
AU - Strzelecki, Ryszard
AU - Peng, Fang Zheng
AU - Abu-Rub, Haitham
PY - 2011
Y1 - 2011
N2 - Z-source inverters (ZSIs) are suited for applications which require a large range of voltage gain, such as in fuel cells. The present paper extends the concept of ZSIs. New type high step-up LCCT-Z-source inverter dedicated for fuel cells is proposed in the paper. Compared to recently proposed modifications of basic Z-source inverter the new topology has the advantages of available continuous input current, improved boost ratio and simple topology. Thanks to application of transformer with turns ratio higher than one the proposed LCCT-Z-source can operate with lower shoot-through ratio and higher modulation index compared to ZSI. The existence of two built-in DC-current-blocking capacitors connected in series with transformer windings prevents the transformer core from saturation. Simulation and experimental results are provided to verify the reliability of the proposed topology.
AB - Z-source inverters (ZSIs) are suited for applications which require a large range of voltage gain, such as in fuel cells. The present paper extends the concept of ZSIs. New type high step-up LCCT-Z-source inverter dedicated for fuel cells is proposed in the paper. Compared to recently proposed modifications of basic Z-source inverter the new topology has the advantages of available continuous input current, improved boost ratio and simple topology. Thanks to application of transformer with turns ratio higher than one the proposed LCCT-Z-source can operate with lower shoot-through ratio and higher modulation index compared to ZSI. The existence of two built-in DC-current-blocking capacitors connected in series with transformer windings prevents the transformer core from saturation. Simulation and experimental results are provided to verify the reliability of the proposed topology.
UR - http://www.scopus.com/inward/record.url?scp=81855217493&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2011.6064070
DO - 10.1109/ECCE.2011.6064070
M3 - Conference contribution
AN - SCOPUS:81855217493
SN - 9781457705427
T3 - IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings
SP - 2276
EP - 2282
BT - IEEE Energy Conversion Congress and Exposition
T2 - 3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011
Y2 - 17 September 2011 through 22 September 2011
ER -