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A back to back multilevel converter for driving low inductance brushless AC machines

By S. Minshull, Chris Bingham, M. P. Foster and D. A. Stone


Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage. Here, their application to control high- efficiency brushless permanent magnet synchronous machines exhibiting low phase inductance is explored, the relative advantages being shown to include reduced current ripple and improved harmonic spectrum. A cost benefit analysis is included along with experimental results from a prototype 5-level back-to-back converter

Topics: H630 Electrical Power
Publisher: IEEE
Year: 2007
DOI identifier: 10.1109/EPE.2007.4417316
OAI identifier:

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