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To solve this problem, a modified Buck-Boost circuit [24] is proposed, which is shown in Fig. 2.The first battery and the last battery are connected by a new equalization module, so that the battery pack forms a toroidal energy loop, and energy can be transferred through the least intermediate batteries.
To solve this problem, a modified Buck-Boost circuit [24] is proposed, which is shown in Fig. 2.The first battery and the last battery are connected by a new equalization module, so that the battery pack forms a toroidal energy loop, and energy can be transferred through the least intermediate batteries.
DOI: 10.1016/j.est.2024.111361 Corpus ID: 269133970; Active equalization control method for battery pack based on Double-DQN @article{Lu2024ActiveEC, title={Active equalization control method for battery pack based on Double-DQN}, author={Chenlei Lu and Dongji Xuan and Shengnan Liu and Jiaqi Tan and Haoqin Hu and Zehao Kang and Liqu Lin}, journal={Journal of …
Battery equalization can increase batteries'' life cycle, utilization, and reliability. Compared with battery equalization topologies based on resistance or energy storage components, the ...
Additionally, this circuit has reduced the equalization time (for two 4200 mAh, 3.7 V Li-ion cells, it takes 76 min, 207 min for four 12 V, 1.5 Ah lead acid batteries and 4.64 min for 100 F SC), high efficiency (96% for Li-ion battery, 94.2 for lead–acid battery and 83.6 for SC respectively), zero voltage gap, minimum cost, and miniature size.
World Electr. Veh. J. 2023, 14, 86 3 of 20 2. Functioning of the Equalization Circuit 2.1. BCEQ System Structure Single cells are typically coupled in series to build hundreds to thousands of power
A forced equalization circuit is proposed in this paper, which can transfer energy from any battery to other batteries in the battery pack, thereby reducing the inconsistency of each energy storage unit and prolonging the life of the battery pack. The Nash equalization based on the complete information game strategy is used to optimize the ...
*Corresponding author: 2015994552@nit .cn Research progress of energy equalization topology of power lithium battery pack Yinbao Miao 1, 2, Wenhua Zhang 1, 2,*, Weihao Liu1,2, Dongqi Kang1,2, Shuai Wang1,2, Zhe Chen1,2, Jia Liu1, Biaoxian Chen1, Leijing Zhu1 1 Nanchang Institute of Technology, Nanchang 330000, China 2 Key Laboratory of Precision …
DOI: 10.1016/j.est.2023.107157 Corpus ID: 257699736; An active equalization method for series-parallel battery pack based on an inductor @article{Guo2023AnAE, title={An active equalization method for series-parallel battery pack based on an inductor}, author={Xiangwei Guo and Qi Wu and Cheng Xing and Wei Qian and Yunji Zhao}, journal={Journal of Energy Storage}, …
In this paper, a cell equalization circuit based on the Flyback topology is proposed for the Lithium-ion battery pack. Multiple transformers are employed in this circuit, equal to the number of cells in the pack. All the primary windings are coupled in series to provide the equalizing energy form the whole battery pack to the specific under charged cells. The …
To our knowledge, this is the first work to achieve series-connected battery pack active equalization by fusion of data-driven residual capacity online estimation and …
Battery pack equalization circuit. Energies 2019, 12, 2071 4 of 18. The equalization process of the battery pack in the stationary state is simpler than that in the.
In this paper, a proactive active balancing circuit based on redundant batteries is proposed to reduce the complexity of the balancing circuit while improving the consistency …
Designing a proper balancing circuit can effectively improve the consistency of the battery pack. Depending on the method of energy handling during battery balancing, the circuits can be divided into dissipative and non-dissipative types [5] a dissipative balancing circuit, the battery is connected in parallel with a dissipative resistor.
An active equalization method based on an inductor and a capacitor was proposed in Reference by combining the advantages of the fast equalization speed of capacitor energy storage and the high equalization accuracy of inductor energy storage, which significantly improves the battery pack''s consistency as a result, and thus the battery pack ...
The battery equalisation circuit is mainly divided into an energy-consuming equalisation circuit and a non-energy-consuming equalisation circuit. The energy dissipation type equalisation method is to reduce the energy of a …
To solve the inconsistence problems in simple and easy way, a single-inductor-based active balancing circuit topology for series battery packs is proposed in this paper. The balancing …
The ratio of the sum power of the battery pack after equalization to the sum power before equalization is defined as the equalization efficiency. ... in the battery pack are 0.382 V, 0.253 in the charging state, discharging state, respectively. All of them satisfy the equalization circuit starting conditions, and the equalization circuit works. ...
Circuit equalization voltage accuracy is plus or minus 1%. Connect from the negative pole of the battery pack. The first line labeled "-" on the protection board is connected to the negative pole of the first battery, and the second line is connected to the second battery of …
Download Citation | On Oct 22, 2021, Shuxuan Song and others published Active Equalization Circuit and Control Design of Series Battery Pack Based on Single Inductance | Find, read and cite all ...
Such inconsistencies will reduce the energy utilisation rate and service life of the battery pack, and even endanger its battery system safety. To improve the inconsistency of …
In this paper, a voltage detection circuit of a series lithium-ion battery cell based on a switch array is designed, and the batteries in the battery cell are connected to a …
The proposed topology is verified by the battery pack composed of 9 cells in series, the experiment result shows that this topology not only retains the advantages of good equalization of self ...
Lithium-ion battery voltage equalization is of great importance to maximize the capacity of the whole battery pack and keep cells away from over-charge or over-discharge damage this paper, analysis of the working principle of the voltage equalization circuit shows that the speed of the lithium-ion battery cells voltage equalization can be accelerated with optimized circuit …
Background: How to solve the inconsistency of battery pack is a key point to ensure reliable operation of electric vehicles. Battery equalization is an effective measure to address the inconsistency. Passive equalization method has poor efficiency and thermal management problems. Average voltage equalization method is only suitable for situations …
A novel active equalization circuit based on ring structure is proposed to solve the problems of over equalization, slow equalization time and inconsistent equalization energy of lithium-ion battery packs. ... Ma, Y., Duan, P., Sun, Y., et al.: Equalization of lithium-ion battery pack based on fuzzy logic control in electric vehicle. IEEE Trans ...
The main issue related to the battery identified in these papers is the cell equalization. Typically, an EV battery pack consists of a cluster of cells, where each Li-ion cell is not exactly equal to the others in terms of capacity, internal resistance and self-discharge rate because of normal dispersion during manufacturing. ... Lu, C.; Kang ...
In which E e is the effective energy transferred to C 1, j (j = 2,3,4), E o is the energy back to C 1,1 due to the equalization overlap. Q fc is the output charge from C 1,1 during the discharging process and η fc is the efficiency of the circuit. When the voltage of the cells is close to each other, V 1, 1 ≈ V 1, 2 ≈ V 1, 3 ≈ V 1, 4, the effective equalization efficiency is …
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 …
Intra-group equalization circuit 1 consists of p battery cells B 1-B P, two sets of single-blade double-throw switches K 1-K P and S 1-S P, and a bidirectional Sepic-Zeta …
The application of an equalization circuit can effectively reduce the inconsistency of the energy of the battery pack, thereby extending the service life of the battery pack. By reviewing the mainstream balanced circuit topology, this paper proposed the comments on the ideal balanced circuit structure in the future, which is expected to serve ...
The equalization technique is a key technique in the secondary utilization of retired batteries. In this paper, a double-layer equalization method is proposed, which combines the reconfigurable topology with the converter active equalization method. The inner layer uses the reconfigurable topology to have a balanced set of battery cells. Thanks to isolating the …
For PV-lithium-ion battery energy storage systems, the passive equalization circuit and control strategy are used to equalize high-performance batteries and to obtain …
Whether you''re a seasoned DIY enthusiast or just starting out with battery care, understanding the purpose and benefits of an equalizing charge. Redway Battery. Search Search [gtranslate] +86 (755) 2801 0506 ... Another risk is using incorrect voltage settings during the equalization process. Each type of battery has specific voltage ...
Limited by the "weakest cell", the maximum available capacity of battery pack without equalization in Case 1 and Case 2 are only about 642mAh and 588mAh, respectively. With the designed equalization strategy, the maximum available capacity of battery pack in those two cases can be further improved 10.29% and 10.25%, respectively.
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