Cited by 25Electric and Hybrid Vehicle TechnologiesPower Systems and Renewable EnergyElectric Vehicles and Infrastructure

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

A Real-Time Layer-Adaptive Wavelet Transform Energy Distribution Strategy in a Hybrid Energy Storage System of EVs

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Abstract

In this paper, a real-time energy distribution strategy is designed by a layer-adaptive wavelet transform algorithm and proposed to meet the load power demand while distributing the high-frequency component to supercapacitors and the low-frequency component to batteries in a hybrid energy storage system. In the proposed method, the number of decomposition layers of wavelet transform corresponding to the load power is adaptively determined by dividing the operation zone of supercapacitors into eight cases to respectively distribute the low frequency component to batteries and the remaining high frequency component to supercapacitors. Firstly, since the state of charge of supercapacitors decreases faster as the decomposition layers increases, the state of charge of supercapacitors is divided into eight cases of operation zones. Secondly, since supercapacitors act as the peak power buffer unit, the corresponding number of decomposition layers is finally adaptively determined according to the operation zone of supercapacitors. An experiment testbed is built to verify the effectiveness of the proposed method. Extensive experiment results show that the proposed method provides a better real-time energy sharing between supercapacitors and batteries when compared with the conditional method.

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Metadata

Authors
Peng, J., Wang, R., Liao, H., Zhou, Y., Li, H., Wu, Y., & Huang, Z.
Affiliations
Central South University (CN)
Corresponding author
Liao, Hongtao
Venue
Energies
Publisher
MDPI AG
Published
2019-01-30
Volume
12
Issue
3
Pages
440
ISSN
1996-1073 (ISSN-L)
OpenAlex
W2912218270
Cited by
25
References
27
Citations by year
2025: 2 · 2023: 9 · 2022: 5 · 2021: 2 · 2020: 4 · 2019: 3
FWCI
1.60
Type
journal article
Language
en
Open access
Locations
  • Energies (publishedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (61772558, 61672537)
Topics
  • Physical Sciences › Engineering › Automotive Engineering › Electric and Hybrid Vehicle Technologies
  • Physical Sciences › Energy › Energy Engineering and Power Technology › Power Systems and Renewable Energy
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electric Vehicles and Infrastructure
Keywords
hybrid energy storage, electric vehicles, wavelet transform, supercapacitors, batteries, energy sharing, state of charge

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