A New Hybrid-Modular Multi-level Inverter with Fault-Tolerant Capability

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Abstract

This paper proposes a new single-phase hybrid-modular multi-level inverter (H-MMI) topology. The proposed H-MMI can ensure fault-tolerance under different faulty scenarios. The H-MMI architecture utilizes a series connection of DC sources and power switches to generate multiple voltage levels, but this arrangement also increases the system’s vulnerability to failures. To address this challenge, a fault-tolerant technique is proposed for the H-MMI inverter, ensuring reliable operation even in the presence of component failures. Furthermore, the proposed control method can be utilized to compensate any voltage drop of the dc-link caused by the aging of the input capacitors. The eleven-level form of the proposed H-MMI is simulated in PLECS program. The results show that the inverter output current effectively tracks the reference current, maintaining stable operation even during faulty scenarios.
OriginalsprogEngelsk
Titel2023 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe
ForlagIEEE
Publikationsdato2023
Artikelnummer10264676
ISBN (Elektronisk)9789075815412
DOI
StatusUdgivet - 2023
Begivenhed25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe - Aalborg, Danmark
Varighed: 4 sep. 20238 sep. 2023

Konference

Konference25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe
Land/OmrådeDanmark
ByAalborg
Periode04/09/202308/09/2023

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