TY - GEN
T1 - Super-Twisting Sliding Mode Control for Grid-Tied T-Type qZSI with Reduced Capacitor Voltage
AU - Komurcugil, Hasan
AU - Bayhan, Sertac
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/6
Y1 - 2020/6
N2 - This paper proposes a super-twisting sliding mode control (ST-SMC) strategy for a three-phase grid-tied three-level T-type quasi-Z-source inverter (qZSI) with LCL filter. The qZSI topology used in this study offers a reduction in the capacitor voltages. While the dc capacitor voltages and inductor currents in the dc-side are controlled by conventional SMC, the grid current in the ac-side is controlled by ST-SMC. Unlike the existing methods, the use of SMC in the dc-side not only eliminates the need for using PI regulator, but also requires one gain only. The proposed ST-SMC in the ac-side controls the grid current successfully without using a special active damping method. Also, it eliminates chattering and leads to a fixed switching frequency operation. The validity of the proposed control strategy is investigated by computer simulations during steady-state and transients caused by the reference change.
AB - This paper proposes a super-twisting sliding mode control (ST-SMC) strategy for a three-phase grid-tied three-level T-type quasi-Z-source inverter (qZSI) with LCL filter. The qZSI topology used in this study offers a reduction in the capacitor voltages. While the dc capacitor voltages and inductor currents in the dc-side are controlled by conventional SMC, the grid current in the ac-side is controlled by ST-SMC. Unlike the existing methods, the use of SMC in the dc-side not only eliminates the need for using PI regulator, but also requires one gain only. The proposed ST-SMC in the ac-side controls the grid current successfully without using a special active damping method. Also, it eliminates chattering and leads to a fixed switching frequency operation. The validity of the proposed control strategy is investigated by computer simulations during steady-state and transients caused by the reference change.
KW - T-type quasi-Z-source inverter
KW - sliding mode control
KW - super twisting algorithm.
UR - http://www.scopus.com/inward/record.url?scp=85089506204&partnerID=8YFLogxK
U2 - 10.1109/ISIE45063.2020.9152467
DO - 10.1109/ISIE45063.2020.9152467
M3 - Conference contribution
AN - SCOPUS:85089506204
T3 - IEEE International Symposium on Industrial Electronics
SP - 790
EP - 795
BT - 2020 IEEE 29th International Symposium on Industrial Electronics, ISIE 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 29th IEEE International Symposium on Industrial Electronics, ISIE 2020
Y2 - 17 June 2020 through 19 June 2020
ER -