TY - GEN
T1 - Quasi-Z-source modular cascaded converter for high-power photovoltaic system
AU - Liu, Yushan
AU - Abu-Rub, Haitham
AU - Ge, B.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/5/19
Y1 - 2016/5/19
N2 - A quasi-Z-source modular cascaded converter (qZS-MCC) for high-power photovoltaic (PV) system is proposed. The qZS-MCC comprises front-end isolated qZS half-bridge (HB) dc-dc converter submodules (SMs). The post-stage qZS-HB handles the stochastic PV voltage and power variations, also interfaces with dc collection grid at series-output side; while a unified duty cycle is applied to the front-end isolation converter of all SMs, without control. Thus, the qZS-MCC PV system accomplishes the modular topology, at scalable voltage and power, with high reliability and easily implemented control. Configuration, operation, and control method of the proposed system are presented. Simulation results are carried out on 60-kW SM based qZS-MCC to demonstrate the validity of the proposed system.
AB - A quasi-Z-source modular cascaded converter (qZS-MCC) for high-power photovoltaic (PV) system is proposed. The qZS-MCC comprises front-end isolated qZS half-bridge (HB) dc-dc converter submodules (SMs). The post-stage qZS-HB handles the stochastic PV voltage and power variations, also interfaces with dc collection grid at series-output side; while a unified duty cycle is applied to the front-end isolation converter of all SMs, without control. Thus, the qZS-MCC PV system accomplishes the modular topology, at scalable voltage and power, with high reliability and easily implemented control. Configuration, operation, and control method of the proposed system are presented. Simulation results are carried out on 60-kW SM based qZS-MCC to demonstrate the validity of the proposed system.
KW - dc-dc power conversion
KW - galvanic isolation
KW - High-power photovoltaic systems
KW - quasi-Z-source inverter
UR - https://www.scopus.com/pages/publications/84974602650
U2 - 10.1109/ICIT.2016.7474929
DO - 10.1109/ICIT.2016.7474929
M3 - Conference contribution
AN - SCOPUS:84974602650
T3 - Proceedings of the IEEE International Conference on Industrial Technology
SP - 1226
EP - 1231
BT - Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Conference on Industrial Technology, ICIT 2016
Y2 - 14 March 2016 through 17 March 2016
ER -