Abstract
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.
Original language | English |
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Title of host publication | Proceedings of 2021 31st Australasian Universities Power Engineering Conference, AUPEC 2021 |
Editors | Sumedha Rajakaruna, Ahmed Abu Siada, Ho Ching Iu, Arindam Ghosh, Tyrone Fernando |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781665434515 |
DOIs | |
Publication status | Published - 2021 |
Externally published | Yes |
Event | 31st Australasian Universities Power Engineering Conference, AUPEC 2021 - Virtual, Online, Australia Duration: Sept 26 2021 → Sept 30 2021 |
Publication series
Name | Proceedings of 2021 31st Australasian Universities Power Engineering Conference, AUPEC 2021 |
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Conference
Conference | 31st Australasian Universities Power Engineering Conference, AUPEC 2021 |
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Country/Territory | Australia |
City | Virtual, Online |
Period | 9/26/21 → 9/30/21 |
Bibliographical note
Publisher Copyright:© 2021 IEEE.
ASJC Scopus Subject Areas
- Fuel Technology
- Renewable Energy, Sustainability and the Environment
- Electrical and Electronic Engineering
- Mechanical Engineering
- Energy Engineering and Power Technology
Keywords
- 15-level inverter
- Fault-tolerant structure
- Multi-module inverter
- Uninterruptible power supply (UPS)