Based on the above analysis, this paper proposes an active equalization method for series-parallel battery pack based on an inductor. The main contributions are described below. The energy storage device responsible for energy transfer requires only one inductor and the topology is simple and low cost.
Studies on the equalization of parallel battery pack have also been conducted , , . The literatures , achieve parallel equalization by adding a DC/DC converter for each parallel module, which is not conducive to the size and cost reduction of the equalization system .
7. Conclusion 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 the equalization between any cell in the series-parallel battery pack.
Active equalization based on capacity during charging and discharging. Capacity-based equalization strategies take C C during charging and C R during discharging as equalization variables to determine whether a battery pack is consistent or not, and then equalize based on capacity.
Aiming at eliminating the inconsistency of each in-pack cell's residual capacity, Sun et al. (2021) developed a novel active equalization method for series-connected battery pack, where clustering analysis was introduced to identify the target cells to be balanced and genetic algorithm was further adopted to optimize the classification results.
After a thorough literature survey, it was found that there are many battery pack equalization strategies developed, but the systematic review and classification are missing. Some studies simply classify the equalization strategies based on the equalization variable, such as voltage, SOC, and capacity.
To solve the inconsistence problems in simple and easy way, a single-inductor-based active …
The equalization circuit used in this paper uses passive equalization to …
Abstract -- A novel non-dissipative two-stage equalization circuit topology based on the traditional Buck-Boost circuit is proposed to achieve balancing of series-connected lithium-ion battery …
The ultimate guide to understanding what battery equalization and equalizer is, balancing the battery with an additional balancing device for your solar batteries or RV battery packs. Common battery packs are 72V, 60V, …
A cascaded buck–boost converter is proposed to balance the inconsistent energy in the battery pack. This equalization circuit is equipped with two fundamental working modes …
The active equalization of lithium-ion batteries involves transferring energy from high-voltage cells to low-voltage cells, ensuring consistent voltage levels across the battery pack and …
To our knowledge, this is the first work to achieve series-connected battery …
An inductor-based bidirectional active equalization circuit is designed based …
Abstract: This paper proposes a fast equalization method for lithium-ion battery packs based on reconfigurable battery structure and designs a new switching circuit topology. By adding PWM …
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 active equalization of lithium-ion batteries involves transferring energy from high-voltage …
Mean algorithms take the average equalization variables of all cells in a …
Abstract: This paper proposes a fast equalization method for lithium-ion battery packs based …
An active equalization method for series-parallel battery pack based on an …
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 …
The equalization circuit used in this paper uses passive equalization to consume the energy of the high-performance battery cell and the DC-DC converter of the active …
An inductor-based bidirectional active equalization circuit is designed based on a Buck–Boost equalization circuit, which consists of a battery pack and an equalization …
The findings demonstrate that the structure can effectively enhance equalization efficiency and minimize the time required for equalization, while the equalization algorithm can solve the problem of inconsistent battery …
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 …
Mean algorithms take the average equalization variables of all cells in a battery pack as the equalization reference object, compare the voltage, SOC, or capacity of each …
Numerous active equalization approaches have been proposed including pack-to-cell (P2C), cell-to-pack (C2P), cell-to-cell (C2C) and flying capacitors or forward multi …
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 …
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 global …
Current equalization strategies can be classified as two groups: passive equalization strategies and active equalization strategies. In passive equalization strategies, …
A sampling circuit, an equalization circuit, and a system for a single cell in a series battery pack are provided. In the sampling circuit provided in this disclosure, the single …
The literature already presents many battery pack equalization circuit designs. One can classify these designs into two categories [7], [8]: passive equalization methods and …
Three for the active equalization circuit board, mainly used for the unbalanced state of the single battery equalization charging and discharging control; 4 for the battery pack …
The findings demonstrate that the structure can effectively enhance equalization efficiency and minimize the time required for equalization, while the equalization algorithm can …
The topology of intra-group equalization circuit 1 is shown in the orange dashed box in Fig. 1. Intra-group equalization circuit 1 consists of p battery cells B 1-B P, two …