Computationally Efficient Cascaded Optimal Switching Sequence MPC for Grid-Connected Three-Level NPC Converters

Andrés Mora, Roberto Cárdenas-Dobson, Ricardo P. Aguilera, Alejandro Angulo, Felipe Donoso, Jose Rodriguez

Resultado de la investigación: Article

Resumen

In this work, a model predictive control (MPC) strategy based on optimal switching sequence (OSS) concepts is proposed for a grid-connected three-level neutral-point clamped converter. The proposed cascaded-OSS-MPC strategy does not require a weighting factor to balance the dc-link capacitor voltages and optimally controls both the grid currents and the capacitor voltages even during disturbances and large step changes in the references. The resulting MPC strategy allows operating the converter with a predefined harmonic spectrum, fixed switching frequency, and fast and robust dynamic response. Besides, an efficient optimization algorithm is also introduced to reduce the computational burden typically observed in this kind of MPC strategies. Experimental and simulation results are provided to demonstrate the effectiveness and high-quality performance of the proposed strategy.

Idioma originalEnglish
Número de artículo8672506
Páginas (desde-hasta)12464-12475
Número de páginas12
PublicaciónIEEE Transactions on Power Electronics
Volumen34
N.º12
DOI
EstadoPublished - 1 dic 2019

Huella dactilar

Model predictive control
Capacitors
Electric potential
Switching frequency
Dynamic response

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Citar esto

Mora, Andrés ; Cárdenas-Dobson, Roberto ; Aguilera, Ricardo P. ; Angulo, Alejandro ; Donoso, Felipe ; Rodriguez, Jose. / Computationally Efficient Cascaded Optimal Switching Sequence MPC for Grid-Connected Three-Level NPC Converters. En: IEEE Transactions on Power Electronics. 2019 ; Vol. 34, N.º 12. pp. 12464-12475.
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abstract = "In this work, a model predictive control (MPC) strategy based on optimal switching sequence (OSS) concepts is proposed for a grid-connected three-level neutral-point clamped converter. The proposed cascaded-OSS-MPC strategy does not require a weighting factor to balance the dc-link capacitor voltages and optimally controls both the grid currents and the capacitor voltages even during disturbances and large step changes in the references. The resulting MPC strategy allows operating the converter with a predefined harmonic spectrum, fixed switching frequency, and fast and robust dynamic response. Besides, an efficient optimization algorithm is also introduced to reduce the computational burden typically observed in this kind of MPC strategies. Experimental and simulation results are provided to demonstrate the effectiveness and high-quality performance of the proposed strategy.",
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Computationally Efficient Cascaded Optimal Switching Sequence MPC for Grid-Connected Three-Level NPC Converters. / Mora, Andrés; Cárdenas-Dobson, Roberto; Aguilera, Ricardo P.; Angulo, Alejandro; Donoso, Felipe; Rodriguez, Jose.

En: IEEE Transactions on Power Electronics, Vol. 34, N.º 12, 8672506, 01.12.2019, p. 12464-12475.

Resultado de la investigación: Article

TY - JOUR

T1 - Computationally Efficient Cascaded Optimal Switching Sequence MPC for Grid-Connected Three-Level NPC Converters

AU - Mora, Andrés

AU - Cárdenas-Dobson, Roberto

AU - Aguilera, Ricardo P.

AU - Angulo, Alejandro

AU - Donoso, Felipe

AU - Rodriguez, Jose

PY - 2019/12/1

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N2 - In this work, a model predictive control (MPC) strategy based on optimal switching sequence (OSS) concepts is proposed for a grid-connected three-level neutral-point clamped converter. The proposed cascaded-OSS-MPC strategy does not require a weighting factor to balance the dc-link capacitor voltages and optimally controls both the grid currents and the capacitor voltages even during disturbances and large step changes in the references. The resulting MPC strategy allows operating the converter with a predefined harmonic spectrum, fixed switching frequency, and fast and robust dynamic response. Besides, an efficient optimization algorithm is also introduced to reduce the computational burden typically observed in this kind of MPC strategies. Experimental and simulation results are provided to demonstrate the effectiveness and high-quality performance of the proposed strategy.

AB - In this work, a model predictive control (MPC) strategy based on optimal switching sequence (OSS) concepts is proposed for a grid-connected three-level neutral-point clamped converter. The proposed cascaded-OSS-MPC strategy does not require a weighting factor to balance the dc-link capacitor voltages and optimally controls both the grid currents and the capacitor voltages even during disturbances and large step changes in the references. The resulting MPC strategy allows operating the converter with a predefined harmonic spectrum, fixed switching frequency, and fast and robust dynamic response. Besides, an efficient optimization algorithm is also introduced to reduce the computational burden typically observed in this kind of MPC strategies. Experimental and simulation results are provided to demonstrate the effectiveness and high-quality performance of the proposed strategy.

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