Low-Frequency Selection Switch Based Cell-to-Cell Battery Voltage Equalizer With Reduced Switch Count

Dam, Shimul Kumar

doi:10.1109/tia.2021.3075184

Cited by 21 publications

(6 citation statements)

References 43 publications

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“…Future studies will concentrate on real-time analysis for experimental validation. Cuk [36,38] Resonant [48,110] Ramp [15,54] Push-pull [57,74] Dual active bridge [111,112] Flyback [56,113]…”

Section: Discussionmentioning

confidence: 99%

“…where U is the average voltage of cells, T s is the switching period, Δi L is the inductance ripple current, and D is the duty cycle. Te operating concept is similar to that of a buck-boost converter with one exception: in a buck-boost converter, the inductor participates in energy transfer, but in a Cuk converter, the capacitor does [35,36].…”

Section: Buck-boost Converter Equalisationmentioning

confidence: 99%

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A Comprehensive Review of Various Topologies and Control Techniques for DC-DC Converter-Based Lithium-Ion Battery Charge Equalization

Sugumaran

Prabha

2023

International Transactions on Electrical Energy Systems

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Worldwide, electric vehicle (EV) sales are booming nowadays due to the rapid increase in the cost of fossil fuels. Lithium-ion batteries are very familiar in the EV industry because of their high energy per unit mass relative to other electric energy storage systems. To obtain the required voltage, several lithium-ion batteries are connected serially. Due to manufacturing inconsistencies, the voltage of serially connected cells is not always equal, which might result in a charge imbalance. This imbalance may reduce the battery’s life span due to the action of undercharging and overcharging. Battery charge equalisation (BCE) is challenging because it requires a constant voltage level in each cell. Various topologies and control strategies have been proposed in the past literature to build and improve the BCE. This study extracts the recently proposed DC-DC converter-based topologies for BCE. This study then gives a comparative analysis of various control strategies used in BCE and ends with implementing control strategies with BCE topology using a DC-DC converter. This study incorporates contextualised topologies used by BCE with design, operation, and applications. Extensive simulation results are provided to compare the performance of DC-DC converter-based BCE topologies in balancing speed. Also, a comprehensive comparison of various converter topologies and control strategies has been carried out for future investigation.

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Section: Discussionmentioning

confidence: 99%

Section: Buck-boost Converter Equalisationmentioning

confidence: 99%

A Comprehensive Review of Various Topologies and Control Techniques for DC-DC Converter-Based Lithium-Ion Battery Charge Equalization

Sugumaran

Prabha

2023

International Transactions on Electrical Energy Systems

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“…Considering the switches count in Fig. 10(a) is relatively high, Dam et al [104] presented a low-frequency cell selection network to reduce the selection switch count. And a…”

Section: Applications Of Balancing Techniquesmentioning

confidence: 99%

“…LSC for CSN and transformer network, special controllers for converters CSN with an LLC converter [102] 4n+4, 2 1 (3) 1 3 2 3.810 -5 (12,0) <94.5 CSN with quasi-resonant LC and boost [103] 5, 2n 0 2 2 5 1.410 -5 (8,0) 98 Low-frequency CSN with a central bidirectional converter [104] 4n+12, n+4 0 2 2 0 -<92.9…”

Section: Olc With Given Pwmmentioning

confidence: 99%

Power Electronics-Based Safety Enhancement Technologies for Lithium-Ion Batteries: An Overview From Battery Management Perspective

Zhao

et al. 2023

IEEE Trans. Power Electron.

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Safety enhancement for lithium-ion batteries (LIBs) has received a lot of attention from academic and industrial fields. However, there is a lack of overview from the perspective of the application power electronics (PEs) in the systems. This article gives an overview of PE-based safety enhancement technologies for LIBs, mainly focusing on battery management. It introduces the latest advances in battery protection, balancing, monitoring, and lifetime improvement, all based on PE technologies. Detailed discussion and future research opportunities are given. This article aims to provide a reference for PE researchers who want to make some efforts in LIB safety.

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“…The active equalization circuit can use magnetic components or capacitors to transfer energy from higher-voltage cells to lower-voltage ones. The equalization circuit based on magnetic components utilizes switching converters, such as buck-boost converter, [3][4][5][6] Cuk converter, 7,8 dual active bridge converter, 9,10 and flyback converter, 11,12 to achieve energy transfer among cells. The capacitor-based equalization circuit adopts the switched-capacitor (SC) converter to realize energy transfer among cells.…”

Section: Introductionmentioning

confidence: 99%

Equalization circuit based on switched‐capacitor units and graph networks for series‐connected cell strings

Xiao-bing

Zhou

Liu

2023

Circuit Theory & Apps

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SummaryAn analysis and design method of the equalization circuit based on switched‐capacitor (SC) units and graph networks is proposed in this paper. In the analysis method, the SC equalization circuit is decomposed into multiple SC units and one or more graph networks, which can simplify the analysis process. The effects of circuit parameters and structure on the equalization performance are analyzed in detail. And the average resistance distance among cells is proposed to mathematically analyze and compare the equalization path of the SC equalization circuits. Based on four types of SC units and graph networks of the equalization circuit, a design method of the SC equalization circuit and two SC equalization circuits are proposed. The proposed SC equalization circuit based on cell equalization units has the optimal equalization speed. The proposed SC equalization circuit based on cell equalization units and substring equalization units implements the trade‐off between equalization speed and device number. Simulation and experimental results are provided to verify the validity of the proposed analysis method and SC equalization circuits.

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Low-Frequency Selection Switch Based Cell-to-Cell Battery Voltage Equalizer With Reduced Switch Count

Cited by 21 publications

References 43 publications

A Comprehensive Review of Various Topologies and Control Techniques for DC-DC Converter-Based Lithium-Ion Battery Charge Equalization

A Comprehensive Review of Various Topologies and Control Techniques for DC-DC Converter-Based Lithium-Ion Battery Charge Equalization

Power Electronics-Based Safety Enhancement Technologies for Lithium-Ion Batteries: An Overview From Battery Management Perspective

Equalization circuit based on switched‐capacitor units and graph networks for series‐connected cell strings

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