Impact of Inverter Distribution and Redundancy on Reliability of Battery-Integrated-Converter Systems

Khanaki, Razieh; Walker, Geoffrey R.; Ledwich, Gerard; Broadmeadow, Mark A. H.

doi:10.1109/aupec48547.2019.211823

Cited by 1 publication

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At present, the research on the redundancy strategy of a single inverter unit has been proposed. In Khanaki et al, 2019, the author integrated a single inverter into an extra low-voltage (ELV) battery module and modularized it and compared the reliability of the 48 V battery module with different redundancy strategies through experiments. In Yu et al, 2020, a five-level inverter single-tube open-circuit fault tolerance method based on redundant space vector optimization and topology reconstruction was proposed, and a new fault circuit space vector pulse width modulation control strategy was obtained, but the maximum output voltage of the inverter will be reduced to 3/4 of the normal inverter voltage.…”

Section: Introductionmentioning

confidence: 99%

Redundancy Management Strategy for a Silicon/Silicon-Carbide Hybrid Switch-Based Modular Inverter System

Zhu¹,

Peng

Dai

et al. 2022

Front. Energy Res.

View full text Add to dashboard Cite

In order to further improve the device utilization of a modular inverter system after the failure of a single inverter unit, a silicon (Si)/silicon-carbide (SiC) hybrid switch with high redundancy can be taken to achieve this goal. However, when the failure of the Si/SiC hybrid switches in the inverter unit occurs, the performance of this modular inverter adopting the fixed switching strategy (Fixed switching pattern and switching frequency) may be reduced. In this paper, a redundancy management strategy is proposed to prevent the performance of the Si/SiC hybrid switch-based modular inverter from reducing after the failure of the Si/SiC hybrid switches occurs. Taking the modular inverter system composed of two inverter units as an example, the experiment results demonstrate that compared to the healthy operating conditions, the increase of the voltage’s THD is smaller than 1.4%, and the increase of the total loss is smaller than 0.89%.

show abstract

Section: Introductionmentioning

confidence: 99%