Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift Modulation

This paper proposes a sensor-reduction control in order to control the output voltage of the dual active bridge (DAB) converter under dual-phase-shift (DPS) modulation. The deadbeat control-based Lagrange multiplier method (LMM) is adopted to achieve current stress optimization (CSO). A first-order...

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Main Authors: Tan-Quoc Duong, Sung-Jin Choi
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9794701/
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author Tan-Quoc Duong
Sung-Jin Choi
author_facet Tan-Quoc Duong
Sung-Jin Choi
author_sort Tan-Quoc Duong
collection DOAJ
description This paper proposes a sensor-reduction control in order to control the output voltage of the dual active bridge (DAB) converter under dual-phase-shift (DPS) modulation. The deadbeat control-based Lagrange multiplier method (LMM) is adopted to achieve current stress optimization (CSO). A first-order extended state observer (ESO) is established to observe the load current based on the basis of the dynamic equation of the output capacitor. Compared to the existing ESO for the DAB converter, the proposed observer is able to reject disturbances even when output capacitor mismatches occur, resulting in better observer performance. Besides, the proposed method exhibits good steady-state performance without using any compensating controller. Consequently, the proposed method enables current sensorless control and significantly decreases the number of control parameters, resulting in increased simplicity and cost-saving. The simulation and experimental results obtained with a 300 W prototype demonstrate that the proposed method outperforms the existing methods under changing load current and input voltage conditions.
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spelling doaj.art-bf4e5d160f9f4f8db3efae1c10ca25ec2022-12-22T03:30:18ZengIEEEIEEE Access2169-35362022-01-0110630206303310.1109/ACCESS.2022.31825109794701Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift ModulationTan-Quoc Duong0https://orcid.org/0000-0002-2892-9685Sung-Jin Choi1https://orcid.org/0000-0003-1256-7832Department of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan, South KoreaDepartment of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan, South KoreaThis paper proposes a sensor-reduction control in order to control the output voltage of the dual active bridge (DAB) converter under dual-phase-shift (DPS) modulation. The deadbeat control-based Lagrange multiplier method (LMM) is adopted to achieve current stress optimization (CSO). A first-order extended state observer (ESO) is established to observe the load current based on the basis of the dynamic equation of the output capacitor. Compared to the existing ESO for the DAB converter, the proposed observer is able to reject disturbances even when output capacitor mismatches occur, resulting in better observer performance. Besides, the proposed method exhibits good steady-state performance without using any compensating controller. Consequently, the proposed method enables current sensorless control and significantly decreases the number of control parameters, resulting in increased simplicity and cost-saving. The simulation and experimental results obtained with a 300 W prototype demonstrate that the proposed method outperforms the existing methods under changing load current and input voltage conditions.https://ieeexplore.ieee.org/document/9794701/Dual active bridgecurrent sensorlessdual-phase-shiftextended state observerparameter mismatch
spellingShingle Tan-Quoc Duong
Sung-Jin Choi
Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift Modulation
IEEE Access
Dual active bridge
current sensorless
dual-phase-shift
extended state observer
parameter mismatch
title Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift Modulation
title_full Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift Modulation
title_fullStr Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift Modulation
title_full_unstemmed Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift Modulation
title_short Sensor-Reduction Control for Dual Active Bridge Converter Under Dual-Phase-Shift Modulation
title_sort sensor reduction control for dual active bridge converter under dual phase shift modulation
topic Dual active bridge
current sensorless
dual-phase-shift
extended state observer
parameter mismatch
url https://ieeexplore.ieee.org/document/9794701/
work_keys_str_mv AT tanquocduong sensorreductioncontrolfordualactivebridgeconverterunderdualphaseshiftmodulation
AT sungjinchoi sensorreductioncontrolfordualactivebridgeconverterunderdualphaseshiftmodulation