Application of a generalized current multilevel cell tocurrent-source inverters
Antunes, F.L.M.
Braga, H.A.C.
Barbi, I.
Dept. of Electr. Eng., Univ. Federal do Ceara;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb 1999
Volume: 46,
Issue: 1
On page(s): 31-38
ISSN: 0278-0046
References Cited: 14
CODEN: ITIED6
INSPEC Accession Number: 6169941
Digital Object Identifier: 10.1109/41.744373
Current Version Published: 2002-08-06
Abstract
In this paper, a new cell which lends itself as a generic current
multilevel one is applied to current-source inverters with output
current harmonics minimization and without the use of high-frequency
modulation. In this cell, inductors acting as current sources ensure
equal current division among switches. DC current balance in the
inductors is achieved, also, without closed-loop control. It is also
shown that, while, for the five-level structure it is easy to find a
proper control strategy, for higher levels, it is necessary to use
numerical simulation programs to find out a proper switching strategy.
Simulation and experimental results are included to show the performance
of the new cell for high-power applications
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