Novel storage battery pack charging control circuit and method thereof

Abstract

The invention discloses a novel storage battery pack charging control circuit and a method of the novel storage battery pack charging control circuit. The control circuit comprises n charging control sets. Each charging control set comprises two battery single bodies, an inductor, a capacitor, a first energy two-way controllable electronic switch and a second energy two-way controllable electronic switch, wherein the first energy two-way controllable electronic switch and the inductor are connected in series to the positive electrode and the negative electrode of one battery single body, and the second energy two-way controllable electronic switch and the inductor are connected in series to the positive electrode and the negative electrode of the other battery single body. All the charging control sets are of the same topological structure and are connected by making the first energy two-way controllable electronic switches connected with the capacitors. By means of the novel storage battery pack charging control circuit, it can be ensured that the performance of all the battery single bodies in storage battery packs can be almost the same in the later period of charging, and therefore the problem that due to the fact that distribution of energy in existing series connection storage battery packs is imbalanced, damage to storage batteries is caused is solved.

Description

technical field [0001] The invention relates to the field of energy balance control of battery packs, in particular to a novel battery pack charging control circuit and method thereof. Background technique [0002] The use of batteries is becoming more and more extensive, and ordinary battery cells cannot meet the requirements of high-power applications, so battery packs are produced, that is, different battery cells are connected in series and parallel, and then used as the required system power supply. Among them, the series connection of battery cells is very common in use. [0003] Although the parameters of the battery cells selected as the battery pack are the same at the connection points, with continuous use, the performance of each cell in the battery will gradually show inconsistency. Continued use of the battery pack will cause the failure of each cell in the battery pack. The voltage of the battery is different, that is, sometimes some battery cells in the batte...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a new battery pack charging control circuit and its method, which can ensure that the performance of each battery cell in the battery pack is equivalent in the later stage of charging, so as to improve the existing series connection. The problem of damage to the battery caused by the uneven distribution of energy in the battery pack

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