DocumentCode
1298441
Title
Exact Linearization Nonlinear Neutral-Point Voltage Control for Single-Phase Three-Level NPC Converters
Author
Cobreces, Santiago ; Bordonau, Josep ; Salaet, Joan ; Bueno, Emilio J. ; Rodriguez, Francisco J.
Author_Institution
Dept. of Electron., Univ. de Alcala, Alcala de Henares, Spain
Volume
24
Issue
10
fYear
2009
Firstpage
2357
Lastpage
2362
Abstract
This letter proposes a new control scheme for the neutral-point (NP) balance in single-phase three-level NP-clamped converters. The control is addressed considering the plant under study, a nonlinear time-variant system. A quasi-exact linearization is applied allowing the application of classic control techniques. The described method is simple, general, and suitable for buck and boost topologies, as well as for inverter or rectifier operating modes under either linear or nonlinear loading. Correct operation is verified under simulated and experimental operation.
Keywords
machine control; nonlinear control systems; power convertors; time-varying systems; voltage control; exact linearization nonlinear control; inverter; neutral-point voltage control; nonlinear time-variant system; rectifier; single-phase three-level NP-clamped converter; Multilevel converters; neutral-point control; nonlinear control;
fLanguage
English
Journal_Title
Power Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0885-8993
Type
jour
DOI
10.1109/TPEL.2009.2015221
Filename
5204181
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