Online desulfurization system and method for storage batteries based on frequency conversion signals

Abstract

The invention provides an online desulfurization system and method for storage batteries based on frequency conversion signals. A test circuit is connected to a storage battery pack, the storage battery pack is divided into a front half pack and a rear half pack through two sets of single-pole double-throw switches, the internal resistance of the front half storage battery pack and the internal resistance of the rear half storage battery pack are measured, and the vulcanization degree of the storage batteries is judged according to a standard internal resistance information table of the storage batteries, so that pulse signals with the corresponding frequency can be selected according to the vulcanization degree, the desulfurization effect is guaranteed, and the conditions that desulfurization cannot be conducted due to the over-low pulse signal frequency and that the storage batteries are damaged due to the over-high pulse signal frequency can be prevented at the same time. On the other hand, the front half storage battery pack and the rear half storage battery pack can be exchanged by switching the single-pole double-throw switches to be closed towards the other movable end, so that the measurement precision of the internal resistance of the storage batteries is improved, the influence of errors of internal resistance measurement on the judgment of the vulcanization degree isprevented, the desulfurization effect is ensured, and meanwhile, the resource waste and the manpower use are reduced.

Description

technical field [0001] The invention relates to the technical field of battery desulfurization, in particular to an online battery desulfurization system and method based on frequency conversion signals. Background technique [0002] Valve-regulated lead-acid batteries are widely used in power systems and are mainly used as backup power for battery packs. In long-term use, lead-acid batteries will produce lead sulfate substances, which will decompose into lead and sulfuric acid during charging, and re-participate in the storage of batteries. Electrochemical reaction, and the presence of lead sulfate will reduce the effective reaction area of ​​the battery and reduce the capacity of the battery. In order to ensure the safe and reliable operation of the power system, a large amount of maintenance is required for the battery. [0003] A common desulfurization method is to use pulse signals to remove sulfur, but the current desulfurization work is to directly apply pulse signals...

AI Technical Summary

Problems solved by technology

[0003] A common desulfurization method is to use pulse signals to remove sulfur, but the current desulfurization work is to directly apply pulse signals to the battery, and does not select the corresponding frequency pulse signal according to the degree of sulfuration of the battery, resulting in poor desulfurization effect , and even reduce the capacity of the battery, thereby reducing the service life of the battery

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