Predictive control of a grid-connected cascaded H-bridge multilevel converter

Patricio Cortes, Francisco Quiroz, Jose Rodriguez

Resultado de la investigación: Conference contribution

10 Citas (Scopus)

Resumen

A predictive control scheme for a three-phase cascaded h-bridge rectifier is presented. The main objectives of this control scheme is to minimize the error between the input active and reactive power and their references, and to balance the dc-link capacitor voltages. These objectives are expressed as a cost function to be minimized. A model of the converter is used for calculation of the predicted value of the controlled variables for a set of switching states. The switching state that minimizes the cost function is selected and applied. In order to reduce the number of calculations needed to select the optimal state, a method for reduction of the evaluated switching states is also proposed. Results show that the proposed control scheme achieves fast control of the active and reactive power and keeps the capacitor voltages balanced.

Idioma originalEnglish
Título de la publicación alojadaProceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011
EstadoPublished - 2011
Evento2011 14th European Conference on Power Electronics and Applications, EPE 2011 - Birmingham, United Kingdom
Duración: 30 ago 20111 sep 2011

Other

Other2011 14th European Conference on Power Electronics and Applications, EPE 2011
PaísUnited Kingdom
CiudadBirmingham
Período30/08/111/09/11

Huella dactilar

Reactive power
Cost functions
Capacitors
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Citar esto

Cortes, P., Quiroz, F., & Rodriguez, J. (2011). Predictive control of a grid-connected cascaded H-bridge multilevel converter. En Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011 [6020633]
Cortes, Patricio ; Quiroz, Francisco ; Rodriguez, Jose. / Predictive control of a grid-connected cascaded H-bridge multilevel converter. Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011. 2011.
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abstract = "A predictive control scheme for a three-phase cascaded h-bridge rectifier is presented. The main objectives of this control scheme is to minimize the error between the input active and reactive power and their references, and to balance the dc-link capacitor voltages. These objectives are expressed as a cost function to be minimized. A model of the converter is used for calculation of the predicted value of the controlled variables for a set of switching states. The switching state that minimizes the cost function is selected and applied. In order to reduce the number of calculations needed to select the optimal state, a method for reduction of the evaluated switching states is also proposed. Results show that the proposed control scheme achieves fast control of the active and reactive power and keeps the capacitor voltages balanced.",
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Cortes, P, Quiroz, F & Rodriguez, J 2011, Predictive control of a grid-connected cascaded H-bridge multilevel converter. En Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011., 6020633, 2011 14th European Conference on Power Electronics and Applications, EPE 2011, Birmingham, United Kingdom, 30/08/11.

Predictive control of a grid-connected cascaded H-bridge multilevel converter. / Cortes, Patricio; Quiroz, Francisco; Rodriguez, Jose.

Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011. 2011. 6020633.

Resultado de la investigación: Conference contribution

TY - GEN

T1 - Predictive control of a grid-connected cascaded H-bridge multilevel converter

AU - Cortes, Patricio

AU - Quiroz, Francisco

AU - Rodriguez, Jose

PY - 2011

Y1 - 2011

N2 - A predictive control scheme for a three-phase cascaded h-bridge rectifier is presented. The main objectives of this control scheme is to minimize the error between the input active and reactive power and their references, and to balance the dc-link capacitor voltages. These objectives are expressed as a cost function to be minimized. A model of the converter is used for calculation of the predicted value of the controlled variables for a set of switching states. The switching state that minimizes the cost function is selected and applied. In order to reduce the number of calculations needed to select the optimal state, a method for reduction of the evaluated switching states is also proposed. Results show that the proposed control scheme achieves fast control of the active and reactive power and keeps the capacitor voltages balanced.

AB - A predictive control scheme for a three-phase cascaded h-bridge rectifier is presented. The main objectives of this control scheme is to minimize the error between the input active and reactive power and their references, and to balance the dc-link capacitor voltages. These objectives are expressed as a cost function to be minimized. A model of the converter is used for calculation of the predicted value of the controlled variables for a set of switching states. The switching state that minimizes the cost function is selected and applied. In order to reduce the number of calculations needed to select the optimal state, a method for reduction of the evaluated switching states is also proposed. Results show that the proposed control scheme achieves fast control of the active and reactive power and keeps the capacitor voltages balanced.

KW - Converter control

KW - Digital control

KW - Multilevel converters

KW - Voltage Source Converter (VSC)

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M3 - Conference contribution

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BT - Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011

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Cortes P, Quiroz F, Rodriguez J. Predictive control of a grid-connected cascaded H-bridge multilevel converter. En Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011. 2011. 6020633