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Exact Linearization Nonlinear Neutral-Point Voltage Control for Single-Phase Three-Level NPC Converters
Cobreces, Santiago; Bordonau Farrerons, José; Salaet Pereira, Juan Fernando; Bueno, Emilio J.; Rodríguez, Francisco J.
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GREP - Grup de Recerca en Electrònica de Potència
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.
Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència
Nonlinear control theory
Electric current converters
Control no lineal, Teoria de
Convertidors de corrent elèctric
info:eu-repo/semantics/publishedVersion
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