A Modularized Two-Stage Charge Equalizer With Cell Selection Switches
In lithium-ion battery system for hybrid electric vehicle, charge equalizer is essential to enhance the battery life cycle and safety. However, for a large number of battery cells, a conventional equalizer has the difficulty of individual cell balancing and the implementation size problem as well as the cost. Moreover, it shows high voltage stress of electrical elements in
Optimal Cell Equalizing Control Based on State of Charge
This paper presents a cell optimal equalizing control method for Lithium-Ion battery pack formed by many cells connected in series in order to extract the maximum capacity, maintain the safe operation requirements of pack, and prolong the cells cycle life. Using the active cell to cell equalizing method, the energy levels of two adjacent cells will be equalized based
A double-layer ring-structured equalizer for series-connected
Download Citation | On Feb 1, 2024, Bizhong Xia and others published A double-layer ring-structured equalizer for series-connected lithium-ion battery pack based on model predictive control | Find
A Modularized Charge Equalizer for an HEV Lithium-Ion Battery
Based on the fact that a hybrid electric vehicle (HEV) connects a high number of batteries in series to obtain more than approximately 300 V, this paper proposes a modularized charge equalizer for
Battery Equalizer: Optimizing Voltage Balance for
⑦ Any multi-cell battery pack: Essentially any application that uses a multi-cell battery pack, especially one that involves series-connected cells or battery packs, can benefit from a cell equalizer. This includes applications
A novel active equalizer for Li-ion battery pack in electric vehicles
A novel active equalizer for Li-ion battery pack in electric vehicles is designed. Based on cell-to-pack-to-cell topology, the equalizer consists of a switch array and a single-ended forward bidirectional DC-DC converter, which is simple, efficient and reliable. Han W, Zhang L. Battery cell reconfiguration to expedite charge equalization in
An active equalization method for series-parallel battery pack
Fig. 11 shows the experimental results of the battery pack in charging state, discharging state, Design of Parallel Resonant Switched-Capacitor Equalizer for series-connected battery strings. IEEE Trans. Power Electron., 36 (8) (2021), pp. 9160-9169, 10.1109/TPEL.2021.3052780. View in Scopus Google Scholar
Active Charge Equalizer of Li-Ion Battery
The battery pack was composed of six serially-connected LIB cells (LG Chem., Ltd.) which had a nominal capacity of 4400 mA∙h. The battery pack had a nominal
Charging and Discharging Equalization with Improved Switching
For both charging and discharging series-connected battery pack, charging equalization is important in order not to influence the power battery''s cycle life. This paper lists several balancing
Smart equalizer : an ACTIA innovation.
The equalizer is used to maintain the charge and discharge balance between the two batteries connected in series which make up the battery pack. It can provide a reliable 12V regulated power supply for dual-voltage
A multi-module equalization system for lithium-ion battery packs
A novel cooperative equalization system for multi-modules in the battery pack is proposed in this paper. The system combines active and passive equalization, and also includes a fast discharge function for balancing modules by a power resistor. The experimental results show that the proposed equalizer demonstrates good performance in
Modularized Design of Active Charge Equalizer for Li
The proposed circuit and algorithm comprise a good solution to balance a Li-ion battery pack and can significantly reduce the time required to equalize the charges of all cells in the battery pack. A modularized design of
Modularized Design of Active Charge Equalizer for Li-Ion Battery Pack
A modularized design of an active charge equalizer and a charge equalization algorithm for a Li-ion battery pack are proposed. The equalizer consists of one module-balancing circuit and M cell
A novel dual-inductor based charge equalizer for traction battery
DOI: 10.1016/J.IJEPES.2014.12.053 Corpus ID: 109897410; A novel dual-inductor based charge equalizer for traction battery cells of electric vehicles @article{Dai2015AND, title={A novel dual-inductor based charge equalizer for traction battery cells of electric vehicles}, author={Haifeng Dai and Xuezhe Wei and Zechang Sun and Wang Daizhuang}, journal={International Journal of
Novel voltage equalisation circuit of the lithium battery pack
''A novel dual-inductor based charge equalizer for traction battery cells of electric vehicle'', Int. J. Electr. Power Energy Syst., 2015, 67, pp. 627–638 Google Scholar
Active Equalization Circuit and Control Design of Series Battery Pack
A modularized design of an active charge equalizer and a charge equalization algorithm for a Li-ion battery pack are proposed. The equalizer consists of one module-balancing circuit and M cell
Design of a Charge Equalizer Based on Battery Modularization
3216 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 58, NO. 7, SEPTEMBER 2009 Design of a Charge Equalizer Based on Battery Modularization Hong-Sun Park, Associate Member, IEEE, Chol-Ho Kim, Student Member, IEEE, Ki-Bum Park, Student Member, IEEE, Gun-Woo Moon, Member, IEEE, and Joong-Hui Lee, Member, IEEE Abstract—The charge
A Modularized Bidirectional Charge Equalizer for Series
A modularized design of an active charge equalizer and a charge equalization algorithm for a Li-ion battery pack are proposed. The equalizer consists of one module-balancing circuit and M cell
Modularized Charge Equalizer Using Multiwinding Transformers for
the battery pack has to stop discharging when the voltage of B 2, the lowest voltage cell, reaches the cut-off voltage (2.5V). As the comparison, using the equalizer, the battery pack is
Research on active state of charge balance of battery pack based
Research on active state of charge balance of battery pack based on two controllable flyback converters the schematic diagram of the equalization circuit of the 4-series battery pack is shown in Fig. 14. Multiple time scale state-of-charge and capacity-based equalisation strategy for lithium-ion battery pack with passive equaliser
Modularized Design of Active Charge Equalizer for Li-Ion Battery Pack
The proposed circuit was tested under various charging/discharging conditions for a battery pack composed of four serially connected modules, with four serially connected cells per module. Experimental results show that the proposed circuit and algorithm comprise a good solution to balance a Li-ion battery pack.
A switchable indicator for active balance of the lithium-ion battery
For instance, a modular equalizer for a series-connected Li-ion battery pack in EVs is designed in [18], which divides the battery pack into M modules using C2C and C2P. Despite a reduction on the voltage stress on the electronic devices, the proposed equalizer requires a multi-winding transformer for each fly-back DC-DC converter.
A Modularized Charge Equalizer for an HEV Lithium-Ion Battery
A modularized charge equalizer for an HEV battery pack that is modularized into M*N cells, where M is the number of modules in the string and N is theNumber of cells in each module, so that low voltage stress on the electronic devices can be achieved. Based on the fact that a hybrid electric vehicle (HEV) connects a high number of batteries in series to obtain
SmartSafe EB240 Battery Pack Cell
Battery Pack Cell Equalizer Machine is intelligent, efficient and quickly solve the problem of inconsistent voltage of lithium battery packs. Pre-settable work modes, battery types, voltage
Battery Equalisers
The REDARC 40A Charge Equaliser allows 12V to be ''tapped'' from the centre of a two battery, 24V DC electrical system while still ensuring an equal charge across the two batteries. balances the voltages of individual cells or batteries in a battery pack or series-connected dual battery system. This is important to ensure a balanced voltage
BU-404: What is Equalizing Charge?
I have a Vanner 60A battery equalizer, but the main cover is missing. The only electrical connections are the 24 V connection, the 12 V connection, and the ground connection. From the discussion here and on
An active equalization method for series-parallel battery pack
An active equalization method for series-parallel battery pack based on an inductor is proposed, which has the features of simple structure and low cost, and can realize
Active Equalization Circuit and Control Design of Series Battery Pack
The balancing circuit includes a series battery pack, an energy storage inductor, and the switching network, battery management system, controller and one switch drive circuit. In this study, a new bidirectional charge equaliser for series-connected cells is proposed to equalise the charge of N series-connected cells in static and dynamic
Selective buck-boost equalizer for series battery pack
Comparative analysis of proposed charge equalizer The proposed battery charge equalizer is compared with the common equalizer that is illustrated in Table IV [8][9][10][11][12] [13] [14][15][16
A novel active equalizer for Li-ion battery pack in electric vehicles
This equalizer can improve the consistency of batteries, and prevent over-charge and over-discharge of a battery pack, which has good application value for the BMS in EVs.
An active equalization method for series-parallel battery pack
The proposed equalization topology based on an inductor is shown in Fig. 1. The m series battery pack in parallel are named P 1, P 2 , P m. The n cells and 2n + 2 MOSFETs in each series battery pack are named B x1, B x2, , B xn and S x0, S x1, , S x(2n+1), where x is the serial number of the parallel battery pack (x = 1, 2, , m).