Model Predictive Control for Dual-Active-Bridge Converters Supplying Pulsed Power Loads in Naval DC Micro-Grids

Linglin Chen, Shuai Shao, Qian Xiao, Luca Tarisciotti, Patrick W. Wheeler, Tomislav Dragičević

Resultado de la investigación: Article

Resumen

Pulsed power loads (PPLs) are becoming prevalent in medium-voltage naval dc micro-grids. To alleviate their effects on the system, energy storages are commonly installed. For optimal performance, their interface converters need to have fast dynamics and excellent disturbance rejection capability. Moreover, these converters often need to have voltage transformation and galvanic isolation capability since common energy storage technologies such as batteries and supercaps are typically assembled with low-voltage strings. In order to address these issues, a moving discretized control set model predictive control (MDCS-MPC) is proposed in this paper and applied on a dual-active-bridge converter. Fixed switching frequency is maintained, enabling easy passive components design. The proposed MDCS-MPC has a reduced prediction horizon, which allows low computational burden. The operating principle of the MDCS-MPC is introduced in the development of a cost function, which provides stiff voltage regulation. Resonance damping and sampling noise resistance can also be achieved with the proposed cost function. An adaptive step is introduced to enable a fast transition. Assessments on the performance of the proposed MDCS-MPC are conducted. Comparisons with other control methods are also provided. Experimental validations on a 300 V/300 V 20-kHz 1-kW dual-active-bridge converter are carried out to verify the theoretical claims.

Idioma originalEnglish
Número de artículo8717683
Páginas (desde-hasta)1957-1966
Número de páginas10
PublicaciónIEEE Transactions on Power Electronics
Volumen35
N.º2
DOI
EstadoPublished - feb 2020

Huella dactilar

Model predictive control
Cost functions
Energy storage
Electric potential
Disturbance rejection
Switching frequency
Voltage control
Damping
Sampling

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Citar esto

Chen, Linglin ; Shao, Shuai ; Xiao, Qian ; Tarisciotti, Luca ; Wheeler, Patrick W. ; Dragičević, Tomislav. / Model Predictive Control for Dual-Active-Bridge Converters Supplying Pulsed Power Loads in Naval DC Micro-Grids. En: IEEE Transactions on Power Electronics. 2020 ; Vol. 35, N.º 2. pp. 1957-1966.
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Model Predictive Control for Dual-Active-Bridge Converters Supplying Pulsed Power Loads in Naval DC Micro-Grids. / Chen, Linglin; Shao, Shuai; Xiao, Qian; Tarisciotti, Luca; Wheeler, Patrick W.; Dragičević, Tomislav.

En: IEEE Transactions on Power Electronics, Vol. 35, N.º 2, 8717683, 02.2020, p. 1957-1966.

Resultado de la investigación: Article

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AU - Chen, Linglin

AU - Shao, Shuai

AU - Xiao, Qian

AU - Tarisciotti, Luca

AU - Wheeler, Patrick W.

AU - Dragičević, Tomislav

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AB - Pulsed power loads (PPLs) are becoming prevalent in medium-voltage naval dc micro-grids. To alleviate their effects on the system, energy storages are commonly installed. For optimal performance, their interface converters need to have fast dynamics and excellent disturbance rejection capability. Moreover, these converters often need to have voltage transformation and galvanic isolation capability since common energy storage technologies such as batteries and supercaps are typically assembled with low-voltage strings. In order to address these issues, a moving discretized control set model predictive control (MDCS-MPC) is proposed in this paper and applied on a dual-active-bridge converter. Fixed switching frequency is maintained, enabling easy passive components design. The proposed MDCS-MPC has a reduced prediction horizon, which allows low computational burden. The operating principle of the MDCS-MPC is introduced in the development of a cost function, which provides stiff voltage regulation. Resonance damping and sampling noise resistance can also be achieved with the proposed cost function. An adaptive step is introduced to enable a fast transition. Assessments on the performance of the proposed MDCS-MPC are conducted. Comparisons with other control methods are also provided. Experimental validations on a 300 V/300 V 20-kHz 1-kW dual-active-bridge converter are carried out to verify the theoretical claims.

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