@ARTICLE{Chen_Danjiang_Fault-tolerant_2022,
 author={Chen, Danjiang and Zheng, Liyuan},
 volume={vol. 71},
 number={No 4},
 journal={Archives of Electrical Engineering},
 pages={931-948},
 howpublished={online},
 year={2022},
 publisher={Polish Academy of Sciences},
 abstract={Three-level T-type inverters have lower total harmonic distortion in output voltage, higher power density and lower voltage stress of power switches compared with conventional two-level inverters and have been widely used in applications with a wide-power range. Reliability improvement is particularly important for the T-type inverters because of the increased number of power switches and high system complexity. This paper proposes a fault-tolerant topology, which is constructed by adding a redundant leg including halfbridge switches and neutral-point switches connected between the DC bus capacitors and the DC-link midpoint of the conventional T-type inverter. In addition, an after-fault control strategy is proposed based on the results of a fault diagnosis method using bridge voltage. The fault-tolerant control of the open-circuit fault of the power switches and the phase-leg fault can both be achieved by the proposed method. Experimental results are given to verify that the proposed fault-tolerant three-level T-type inverter can output the full voltage level and power during the fault-tolerant operation based on the proposed control strategy.},
 type={Article},
 title={Fault-tolerant control for three-phase three-level T-type inverters with a redundant leg},
 URL={http://www.czasopisma.pan.pl/Content/125032/PDF-MASTER/art08_int.pdf},
 doi={10.24425/aee.2022.142117},
 keywords={fault diagnosis, fault-tolerant control, open-circuit fault, phase-leg fault, redundant leg, T-type inverter},
}