A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching Frequency

This paper proposes a new robustly adaptive hysteresis current digital control algorithm for half-bridge inverters, which plays an important role in electric power, and in various applications in electronic systems. The proposed control algorithm is assumed to be implemented on a high-speed Field Pr...

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Main Authors: Triet Nguyen-Van, Rikiya Abe, Kenji Tanaka
Format: Article
Language:English
Published: MDPI AG 2017-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/10/10/1610
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author Triet Nguyen-Van
Rikiya Abe
Kenji Tanaka
author_facet Triet Nguyen-Van
Rikiya Abe
Kenji Tanaka
author_sort Triet Nguyen-Van
collection DOAJ
description This paper proposes a new robustly adaptive hysteresis current digital control algorithm for half-bridge inverters, which plays an important role in electric power, and in various applications in electronic systems. The proposed control algorithm is assumed to be implemented on a high-speed Field Programmable Gate Array (FPGA) circuit, using measured data with high sampling frequency. The hysteresis current band is computed in each switching modulation period based on both the current error and the negative half switching period during the previous modulation period, in addition to the conventionally used voltages measured at computation instants. The proposed control algorithm is derived by solving the optimization problem—where the switching frequency is always constrained at below the desired constant frequency—which is not guaranteed by the conventional method. The optimization problem also keeps the output current stable around the reference, and minimizes power loss. Simulation results show good performances of the proposed algorithm compared with the conventional one.
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spelling doaj.art-2a241e1dfea142a0a2aa07f0e76658fd2022-12-22T02:57:31ZengMDPI AGEnergies1996-10732017-10-011010161010.3390/en10101610en10101610A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching FrequencyTriet Nguyen-Van0Rikiya Abe1Kenji Tanaka2Internet of Energy Laboratory, Department of Technology Management for Innovation, The University of Tokyo, Tokyo 113-8656, JapanInternet of Energy Laboratory, Department of Technology Management for Innovation, The University of Tokyo, Tokyo 113-8656, JapanInternet of Energy Laboratory, Department of Technology Management for Innovation, The University of Tokyo, Tokyo 113-8656, JapanThis paper proposes a new robustly adaptive hysteresis current digital control algorithm for half-bridge inverters, which plays an important role in electric power, and in various applications in electronic systems. The proposed control algorithm is assumed to be implemented on a high-speed Field Programmable Gate Array (FPGA) circuit, using measured data with high sampling frequency. The hysteresis current band is computed in each switching modulation period based on both the current error and the negative half switching period during the previous modulation period, in addition to the conventionally used voltages measured at computation instants. The proposed control algorithm is derived by solving the optimization problem—where the switching frequency is always constrained at below the desired constant frequency—which is not guaranteed by the conventional method. The optimization problem also keeps the output current stable around the reference, and minimizes power loss. Simulation results show good performances of the proposed algorithm compared with the conventional one.https://www.mdpi.com/1996-1073/10/10/1610half-bridge invertersdigital controlhysteresis current controlswitching frequencyoptimization
spellingShingle Triet Nguyen-Van
Rikiya Abe
Kenji Tanaka
A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching Frequency
Energies
half-bridge inverters
digital control
hysteresis current control
switching frequency
optimization
title A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching Frequency
title_full A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching Frequency
title_fullStr A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching Frequency
title_full_unstemmed A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching Frequency
title_short A Digital Hysteresis Current Control for Half-Bridge Inverters with Constrained Switching Frequency
title_sort digital hysteresis current control for half bridge inverters with constrained switching frequency
topic half-bridge inverters
digital control
hysteresis current control
switching frequency
optimization
url https://www.mdpi.com/1996-1073/10/10/1610
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