Reliability Analysis and Fault-Tolerant Operation in a Multilevel Inverter for Industrial Application

Autor: Mohammad Fahad, Marwan Alsultan, Shafiq Ahmad, Adil Sarwar, Mohd Tariq, Irfan Ahmad Khan
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Electronics, Vol 11, Iss 98, p 98 (2022)
Electronics; Volume 11; Issue 1; Pages: 98
ISSN: 2079-9292
Popis: The extensive employment of power semiconductor devices in multilevel inverters (MLIs) has the consequence of increased failure probabilities. With numerous applications demanding highly reliable inverters, several fault-tolerant schemes have been devised to address switch open-circuit faults. This paper analyzes a multilevel inverter topology for IGBT modules undergoing open-circuit faults, a major impediment to reliable operation within a power converter. Reconfiguration of modulation is performed post-fault. A modulation scheme is implemented across failure modes as a hybrid of nearest level control and selective harmonic elimination. Reliability assessment of the topology is performed, including a comparison with previous literature in terms of component requirements and reliability. Simulation results validate the proposed solutions.
Databáze: OpenAIRE