TY - GEN
T1 - A Family of Fault-tolerant Single-phase 15-level Inverters for UPS Applications
AU - Rahimi, Tohid
AU - Pashajavid, Ehsan
AU - Fallah, Mehdi
AU - Pou, Josep
AU - Arefi, Ali
AU - Loo, Ka Hong
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/9
Y1 - 2021/9
N2 - This paper presents a family of fault-tolerant single-phase inverter topology for uninterruptible power supply (UPS) systems. The core structure is a 15-level inverter, consisting of two unidirectional switches, eight bidirectional switches, and six DC voltage sources. The proposed topology can facilitate realizing fault-tolerant multi-module inverters. If one of the power sources or semiconductor devices fails in one of the modules, the remaining modules can alternatively deliver all the expected voltage levels. Thus, this efficiently eliminates the possibility of UPS system failure for critical applications. The proposed topology is compared with the conventional 15-level inverters regarding the number of voltage sources, switches, and drivers to prove its advantages. The gate signals for the switches are produced employing the fundamental frequency switching technique. Further, the efficacy and performance of the proposed topology are supported with the simulation and experimental validations.
AB - This paper presents a family of fault-tolerant single-phase inverter topology for uninterruptible power supply (UPS) systems. The core structure is a 15-level inverter, consisting of two unidirectional switches, eight bidirectional switches, and six DC voltage sources. The proposed topology can facilitate realizing fault-tolerant multi-module inverters. If one of the power sources or semiconductor devices fails in one of the modules, the remaining modules can alternatively deliver all the expected voltage levels. Thus, this efficiently eliminates the possibility of UPS system failure for critical applications. The proposed topology is compared with the conventional 15-level inverters regarding the number of voltage sources, switches, and drivers to prove its advantages. The gate signals for the switches are produced employing the fundamental frequency switching technique. Further, the efficacy and performance of the proposed topology are supported with the simulation and experimental validations.
KW - 15-level inverter
KW - Fault-tolerant structure
KW - Multi-module inverter
KW - Uninterruptible power supply (UPS)
UR - http://www.scopus.com/inward/record.url?scp=85123302218&partnerID=8YFLogxK
U2 - 10.1109/AUPEC52110.2021.9597763
DO - 10.1109/AUPEC52110.2021.9597763
M3 - Conference article published in proceeding or book
AN - SCOPUS:85123302218
T3 - Proceedings of 2021 31st Australasian Universities Power Engineering Conference, AUPEC 2021
SP - 1
EP - 6
BT - Proceedings of 2021 31st Australasian Universities Power Engineering Conference, AUPEC 2021
A2 - Rajakaruna, Sumedha
A2 - Siada, Ahmed Abu
A2 - Iu, Ho Ching
A2 - Ghosh, Arindam
A2 - Fernando, Tyrone
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 31st Australasian Universities Power Engineering Conference, AUPEC 2021
Y2 - 26 September 2021 through 30 September 2021
ER -
