TY - GEN
T1 - A fault-tolerant topology of T-Type NPC inverter with increased thermal overload capability
AU - He, Jiangbiao
AU - Weise, Nathan
AU - Wei, Lixiang
AU - Demerdash, Nabeel A.O.
PY - 2016/5/10
Y1 - 2016/5/10
N2 - Reliability of multilevel power converters has received increased attention over the past few years, due to the relatively high component failure probability caused by the large number of switching devices utilized in the converter topologies. Thus, the fault-tolerant operation of multilevel converters plays an essential role in safety-critical industrial applications. This paper introduces an improved fault-tolerant inverter topology based on the conventional three-level T-Type neutral-point-clamped (NPC) inverter. Unlike other existing three-phase four-leg fault-tolerant inverter topologies, the fault-tolerant T-Type inverter topology proposed here can significantly enhance the overall thermal overload capability of the inverter, in addition to providing desired fault-tolerant capability. The operating principle of this proposed fault-tolerant T-Type inverter is detailed in this paper, and simulation results are presented to verify the advantages of this improved inverter topology.
AB - Reliability of multilevel power converters has received increased attention over the past few years, due to the relatively high component failure probability caused by the large number of switching devices utilized in the converter topologies. Thus, the fault-tolerant operation of multilevel converters plays an essential role in safety-critical industrial applications. This paper introduces an improved fault-tolerant inverter topology based on the conventional three-level T-Type neutral-point-clamped (NPC) inverter. Unlike other existing three-phase four-leg fault-tolerant inverter topologies, the fault-tolerant T-Type inverter topology proposed here can significantly enhance the overall thermal overload capability of the inverter, in addition to providing desired fault-tolerant capability. The operating principle of this proposed fault-tolerant T-Type inverter is detailed in this paper, and simulation results are presented to verify the advantages of this improved inverter topology.
KW - fault-tolerant operation
KW - Neutral-point clamped inverters
KW - overload capability
KW - three-phase four-leg inverter
UR - http://www.scopus.com/inward/record.url?scp=84973640323&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84973640323&partnerID=8YFLogxK
U2 - 10.1109/APEC.2016.7468002
DO - 10.1109/APEC.2016.7468002
M3 - Conference contribution
AN - SCOPUS:84973640323
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1065
EP - 1070
BT - 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
T2 - 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Y2 - 20 March 2016 through 24 March 2016
ER -