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Single and multiple switch fault‐tolerance capabilities in a hybrid five‐level inverter topology
- Source :
- IET Power Electronics. 13:1257-1266
- Publication Year :
- 2020
- Publisher :
- Institution of Engineering and Technology (IET), 2020.
-
Abstract
- The redundancy in switching states to generate different voltage levels is of great importance to incorporate fault-tolerant features in multilevel inverters. However, this redundancy comes at the expense of high device count, which is paralleled with vulnerable characteristics of semiconductor devices, resulting in low reliability. About this concern, the present study introduces a novel fault-tolerant topology to generate the five-level output voltage. The proposed topology can tolerate open-circuit failure, for single and multiple switches with the help of novel redundant leg architecture and short-circuit condition is dealt with the fast fuses. The comparative study with recent literature is discussed, which reveals the superiority of the proposed topology, in terms of qualitative as well as quantitative parameters. Switching strategies are proposed under different single and multiple switch fault cases, which achieves self-balancing of capacitor voltage. Thus, no complex control scheme is required. The simulation is performed in MATLAB/Simulink, and the feasibility of the proposed topology is validated using experimental results.
- Subjects :
- Computer science
020209 energy
020208 electrical & electronic engineering
Fault tolerance
02 engineering and technology
Semiconductor device
Capacitor voltage
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Redundancy (engineering)
Electrical and Electronic Engineering
Inverter topology
MATLAB
computer
Voltage
computer.programming_language
Subjects
Details
- ISSN :
- 17554543
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- IET Power Electronics
- Accession number :
- edsair.doi...........23e67e775c52eb6248d34d76195e1b59