Design and Control of a Modular Integrated On-Board Battery Charger for EV Applications with Cell Balancing
Open accessAbstract
This paper presents operation and control systems for a new modular on-board charger (OBC) based on a SEPIC converter (MSOBC) for electric vehicle (EV) applications. The MSOBC aims to modularise the battery units in the energy storage system of the EV to provide better safety and improved operation. This is mainly achieved by reducing the voltage of the battery packs without sacrificing the performance required by the HV system. The proposed MSOBC is an integrated OBC which can operate the EV during traction and braking, as well as charge the battery units. The MSOBC is composed of several submodules consisting of a full-bridge voltage source converter connected on the ac side and SEPIC converter installed on the battery side. The SEPIC converter controls the battery segments with a continuous current because it has an input inductor which can smooth the battery’s currents without the need for large electrolytic capacitors. The isolated version of the SEPIC converter is employed to enhance the system’s safety by providing galvanic isolation between the batteries and the ac output side. This paper presents the necessary control loops to ensure the optimal operation of the EV with the MSOBC in terms of charge and temperature balance without disturbing the required modes of operation. The mathematical analyses in this paper are validated using a full-scale EV controlled by TMS320F28335 DSP.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
By using WBG devices, there is no need for low-voltage series MOSFETs and fast-recovering parallel diodes.
“By using WBG devices, there is no need for low-voltage series MOSFETs and fast-recovering parallel diodes [126].”
From On-Board Chargers for Electric Vehicles: A Comprehensive Performance and Efficiency Review (2024) · cites this paper as [126]
Section 2 describes a modular charger with SEPIC and H-bridge converters, while the Conclusions say its design allows lower-rated semiconductor switches. Neither passage says that using wide-bandgap (WBG) devices eliminates series MOSFETs or parallel fast-recovery diodes. Searches for WBG, MOSFETs, and fast-recovery diodes found no passage addressing that claim. (LLM, conf=0.76)
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
The citation lists haven’t been fetched yet
References 25 · Cited by 13
Research works printed but not linked: 1
- Wouters, H.; Martinez, W. Bidirectional On-Board Chargers for Electric Vehicles: State-of-the-Art and Future Trends. IEEE Trans. Power Electron. 2023, 9, 51501-51518.
- Authors
- Nasr Esfahani, F., Darwish, A., & Ma, X.
- Affiliations
- School of Engineering, Lancaster University, Lancaster LA1 4YW, UK
- Lancaster University (GB)
- Corresponding author
- Darwish, Ahmed
- Venue
- Batteries
- Publisher
- MDPI AG
- Published
- 2024-01-02
- Volume
- 10
- Issue
- 1
- Pages
- 17
- ISSN
- 2313-0105 (ISSN-L)
- OpenAlex
- W4390505280
- Cited by
- 13
- References
- 25
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 8
- FWCI
- 1.35
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Batteries (publishedVersion, cc-by)
- Lancaster EPrints (Lancaster University) (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Automotive Engineering › Advanced Battery Technologies Research
- Physical Sciences › Engineering › Automotive Engineering › Electric and Hybrid Vehicle Technologies
- Keywords
- on-board charger, electric vehicles, SEPIC converter, battery balancing, galvanic isolation, integrated power electronics, DSP-based control
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
