Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive Control

This work studies the DC-DC conversion stage in solid-state transformers (SST). The traditional two- or three-level dual active bridge (DAB) topology faces limitations in microgrid interconnection due to power and voltage limitations. For this reason, the use of multilevel topologies such as active...

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Main Authors: Adriano Nardoto, Lucas Encarnação, Walbermark Santos, Arthur Amorim, Rodrigo Fiorotti, David Molinero, Emilio Bueno
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/17/1/12
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author Adriano Nardoto
Lucas Encarnação
Walbermark Santos
Arthur Amorim
Rodrigo Fiorotti
David Molinero
Emilio Bueno
author_facet Adriano Nardoto
Lucas Encarnação
Walbermark Santos
Arthur Amorim
Rodrigo Fiorotti
David Molinero
Emilio Bueno
author_sort Adriano Nardoto
collection DOAJ
description This work studies the DC-DC conversion stage in solid-state transformers (SST). The traditional two- or three-level dual active bridge (DAB) topology faces limitations in microgrid interconnection due to power and voltage limitations. For this reason, the use of multilevel topologies such as active neutral point clamped (ANPC) is a promising alternative. Additionally, the efficiency of the SSTs is a recurring concern, and reducing losses in the DC-DC stage is a subject to be studied. In this context, this work presents a new control technique based on an adaptive model- based predictive control (AMPC) to select the modulation technique of an ANPC-DAB DC-DC converter aimed at reducing losses and increasing efficiency. The single-phase shift (SPS), triangular, and trapezoidal modulation techniques are used according to the converter output power with the aim of maximizing the number of soft-switching points per cycle. The performance of the proposed control technique is demonstrated through real-time simulation and a reduced-scale experimental setup. The findings indicate the effectiveness of the AMPC control technique in mitigating voltage source perturbations. This technique has low output impedance and is robust to converter parameter variations. Prototyping tests revealed that, in steady-state, the AMPC significantly improves converter efficiency without compromising dynamic performance. Despite its advantages, the computational cost of AMPC is not significantly higher than that of traditional model predictive control (MPC), allowing for the allocation of time to other applications.
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spelling doaj.art-dd2380d3a61d4441917822872f4cdb7e2024-01-10T14:55:27ZengMDPI AGEnergies1996-10732023-12-011711210.3390/en17010012Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive ControlAdriano Nardoto0Lucas Encarnação1Walbermark Santos2Arthur Amorim3Rodrigo Fiorotti4David Molinero5Emilio Bueno6Department of Electrical Engineering, Federal Institute of Espírito Santo (IFES), BR101 Km 58, São Mateus 29932-540, BrazilDepartment of Electrical Engineering, Federal University of Espírito Santo (UFES), Av. Fernando Ferrari, 514, Vitória 29075-910, BrazilDepartment of Electrical Engineering, Federal University of Espírito Santo (UFES), Av. Fernando Ferrari, 514, Vitória 29075-910, BrazilDepartment of Electrical Engineering, Federal Institute of Espírito Santo (IFES), BR101 Km 58, São Mateus 29932-540, BrazilDepartment of Electrical Engineering, Federal Institute of Espírito Santo (IFES), BR101 Km 58, São Mateus 29932-540, BrazilDepartment of Electronics, Alcalá University (UAH), Plaza San Diego S/N, 28801 Madrid, SpainDepartment of Electronics, Alcalá University (UAH), Plaza San Diego S/N, 28801 Madrid, SpainThis work studies the DC-DC conversion stage in solid-state transformers (SST). The traditional two- or three-level dual active bridge (DAB) topology faces limitations in microgrid interconnection due to power and voltage limitations. For this reason, the use of multilevel topologies such as active neutral point clamped (ANPC) is a promising alternative. Additionally, the efficiency of the SSTs is a recurring concern, and reducing losses in the DC-DC stage is a subject to be studied. In this context, this work presents a new control technique based on an adaptive model- based predictive control (AMPC) to select the modulation technique of an ANPC-DAB DC-DC converter aimed at reducing losses and increasing efficiency. The single-phase shift (SPS), triangular, and trapezoidal modulation techniques are used according to the converter output power with the aim of maximizing the number of soft-switching points per cycle. The performance of the proposed control technique is demonstrated through real-time simulation and a reduced-scale experimental setup. The findings indicate the effectiveness of the AMPC control technique in mitigating voltage source perturbations. This technique has low output impedance and is robust to converter parameter variations. Prototyping tests revealed that, in steady-state, the AMPC significantly improves converter efficiency without compromising dynamic performance. Despite its advantages, the computational cost of AMPC is not significantly higher than that of traditional model predictive control (MPC), allowing for the allocation of time to other applications.https://www.mdpi.com/1996-1073/17/1/12Dual Active Bridge (DAB) converteractive neutral point clamped (ANPC)model predictive control (MPC)power electronicsswitching lossesadaptive control
spellingShingle Adriano Nardoto
Lucas Encarnação
Walbermark Santos
Arthur Amorim
Rodrigo Fiorotti
David Molinero
Emilio Bueno
Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive Control
Energies
Dual Active Bridge (DAB) converter
active neutral point clamped (ANPC)
model predictive control (MPC)
power electronics
switching losses
adaptive control
title Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive Control
title_full Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive Control
title_fullStr Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive Control
title_full_unstemmed Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive Control
title_short Enhanced Efficiency on ANPC-DAB through Adaptive Model Predictive Control
title_sort enhanced efficiency on anpc dab through adaptive model predictive control
topic Dual Active Bridge (DAB) converter
active neutral point clamped (ANPC)
model predictive control (MPC)
power electronics
switching losses
adaptive control
url https://www.mdpi.com/1996-1073/17/1/12
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AT arthuramorim enhancedefficiencyonanpcdabthroughadaptivemodelpredictivecontrol
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