Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy Processing

In this article, a novel multi-port multi-directional converter (MPMDC) is proposed. Even though the power stage of the MPMDC belongs to a single-stage structure, it can control power flow direction handily among ports and achieve converter operation in up to five modes. The MPMDC has the feature of...

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Main Authors: Chih-Lung Shen, Li-Zhong Chen, Guan-Yu Chen, Ching-Ming Yang
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/15/5629
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author Chih-Lung Shen
Li-Zhong Chen
Guan-Yu Chen
Ching-Ming Yang
author_facet Chih-Lung Shen
Li-Zhong Chen
Guan-Yu Chen
Ching-Ming Yang
author_sort Chih-Lung Shen
collection DOAJ
description In this article, a novel multi-port multi-directional converter (MPMDC) is proposed. Even though the power stage of the MPMDC belongs to a single-stage structure, it can control power flow direction handily among ports and achieve converter operation in up to five modes. The MPMDC has the feature of galvanic isolation and can obtain a high voltage conversion ratio even under the adoption of only one inductor and one transformer. The leakage energy of the transform can be recycled to improve overall efficiency. Once the MPMDC is applied to deal with renewable energy, battery, and bus energy, the advantage of multi-directional control of power flow can advance an energy storage system to perfectly function power conditioning feature. In addition to the discussion of converter operation, voltage gain, voltage stress, current stress, and inductance design are analyzed theoretically. Comparisons with some of the latest similar converters are also carried out. A 200-W prototype is built and measured. According to the practical results, it is verified that the hardware measurements meet the theoretical derivations and the MPMDC is validated. The maximum efficiency of the converter is up to 94%.
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spelling doaj.art-1c84c1429b514ba58d03f6faf15052e22023-12-01T22:55:27ZengMDPI AGEnergies1996-10732022-08-011515562910.3390/en15155629Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy ProcessingChih-Lung Shen0Li-Zhong Chen1Guan-Yu Chen2Ching-Ming Yang3Department of Electronic Engineering, National Kaohsiung University of Science and Technology, No. 1, University Rd., Yanchao Dist., Kaohsiung 82445, TaiwanDepartment of Electronic Engineering, National Kaohsiung University of Science and Technology, No. 1, University Rd., Yanchao Dist., Kaohsiung 82445, TaiwanDepartment of Electronic Engineering, National Kaohsiung University of Science and Technology, No. 1, University Rd., Yanchao Dist., Kaohsiung 82445, TaiwanDepartment of Electronic Engineering, National Kaohsiung University of Science and Technology, No. 1, University Rd., Yanchao Dist., Kaohsiung 82445, TaiwanIn this article, a novel multi-port multi-directional converter (MPMDC) is proposed. Even though the power stage of the MPMDC belongs to a single-stage structure, it can control power flow direction handily among ports and achieve converter operation in up to five modes. The MPMDC has the feature of galvanic isolation and can obtain a high voltage conversion ratio even under the adoption of only one inductor and one transformer. The leakage energy of the transform can be recycled to improve overall efficiency. Once the MPMDC is applied to deal with renewable energy, battery, and bus energy, the advantage of multi-directional control of power flow can advance an energy storage system to perfectly function power conditioning feature. In addition to the discussion of converter operation, voltage gain, voltage stress, current stress, and inductance design are analyzed theoretically. Comparisons with some of the latest similar converters are also carried out. A 200-W prototype is built and measured. According to the practical results, it is verified that the hardware measurements meet the theoretical derivations and the MPMDC is validated. The maximum efficiency of the converter is up to 94%.https://www.mdpi.com/1996-1073/15/15/5629multi-port multi-directional convertergalvanic isolationhigh conversion ratioleakage energy recyclingsingle stage
spellingShingle Chih-Lung Shen
Li-Zhong Chen
Guan-Yu Chen
Ching-Ming Yang
Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy Processing
Energies
multi-port multi-directional converter
galvanic isolation
high conversion ratio
leakage energy recycling
single stage
title Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy Processing
title_full Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy Processing
title_fullStr Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy Processing
title_full_unstemmed Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy Processing
title_short Multi-Port Multi-Directional Converter with Multi-Mode Operation and Leakage Energy Recycling for Green Energy Processing
title_sort multi port multi directional converter with multi mode operation and leakage energy recycling for green energy processing
topic multi-port multi-directional converter
galvanic isolation
high conversion ratio
leakage energy recycling
single stage
url https://www.mdpi.com/1996-1073/15/15/5629
work_keys_str_mv AT chihlungshen multiportmultidirectionalconverterwithmultimodeoperationandleakageenergyrecyclingforgreenenergyprocessing
AT lizhongchen multiportmultidirectionalconverterwithmultimodeoperationandleakageenergyrecyclingforgreenenergyprocessing
AT guanyuchen multiportmultidirectionalconverterwithmultimodeoperationandleakageenergyrecyclingforgreenenergyprocessing
AT chingmingyang multiportmultidirectionalconverterwithmultimodeoperationandleakageenergyrecyclingforgreenenergyprocessing