NDLI: Reliability comparison of multi-level inverters for motor drive

Content Provider	IEEE Xplore Digital Library
Author	Liang Zhou Smedley, K.
Copyright Year	2009
Description	Author affiliation: Power Electronics Laboratory, Electrical Engineering and Computer Science Department, University of California, Irvine, CA 92697 USA (Liang Zhou) \|\| Power Electronics Laboratory, Electrical Engineering and Computer Science Department, University of California, Irvine, CA, 92697 USA (Smedley, K.)
Abstract	Due to the unique interconnecting nature of hexagram inverter, it can tolerate one leg failure without adding major power component. In the event of one leg failure, the whole power module is disabled and new control method will be initiated for hexagram inverter. Another widely used multi-level topology is Cascaded H-bridge Inverter, which proves to have extremely high reliability when contactors are added to the topology. This paper gives the control method of hexagram inverter under faulty condition, and is compared to Cascaded H-bridge inverter in this regards. Reliability analysis shows that without adding any major power components, the hexagram inverter has higher reliability than cascaded H-bridge inverter due to its simple structure and less components. Considering N+1 redundancy, Hexagram inverter proves to have higher reliability than Cascaded H-bridge inverter, in which additional contactors are required for fault tolerant control design.
Starting Page	1
Ending Page	7
File Size	1849012
Page Count	7
File Format	PDF
ISBN	9781424442416
ISSN	19449925
DOI	10.1109/PES.2009.5275174
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Motor drives Voltage control Topology Fault tolerance Traction motors Driver circuits Power electronics Redundancy Multichip modules multilevel Hexagram inverter Cascaded H-bridge Inverter fault tolerant control motor drive
Content Type	Text
Resource Type	Article

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