Exact Linearization Nonlinear Neutral-Point Voltage Control for Single-Phase Three-Level NPC Converters

被引:28
作者
Cobreces, Santiago [1 ]
Bordonau, Josep [2 ]
Salaet, Joan [3 ]
Bueno, Emilio J. [1 ]
Rodriguez, Francisco J. [1 ]
机构
[1] Univ Alcala de Henares, Dept Elect, Alcala De Henares 28871, Spain
[2] Univ Politecn Cataluna, Dept Elect Engn, E-08028 Barcelona, Spain
[3] Univ Politecn Cataluna, Dept Elect Engn, Barcelona 08222, Spain
关键词
Multilevel converters; neutral-point control; nonlinear control; MULTILEVEL INVERTER; PWM CONTROL;
D O I
10.1109/TPEL.2009.2015221
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:2357 / 2362
页数:6
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