Controlled battery pack device and charging and discharging control method thereof

Abstract

The invention relates to the field of battery energy storage conversion power supply, in particular to a device and a method for improving charging and discharging performance of a power battery pack.In order to solve the technical problem, the controlled battery pack device is provided, a charging input / discharging output electric type controlled unit is connected in series in a battery pack toform an electric type controlled charging and discharging battery pack; the electric type controlled charging and discharging battery pack is limited in the charging and discharging electric type parameters, namely the basic electrical parameters are controlled, charging input / discharging output voltage works within an effective preset range, and the charging input / discharging output current within an effective preset range is limited. The device and the method have the beneficial effects that the power battery pack is in a straight-through charging and discharging state within a protection limit, volt-ampere impedance electrical parameters are in an uncontrolled and unadjustable free state, and intelligent internal control modular operation cannot be achieved are overcome.

Description

technical field [0001] The invention relates to the field of battery energy storage conversion and power supply, and more specifically relates to a device and method for improving the charging and discharging performance of a power battery pack. Background technique [0002] The power battery pack is the core component of new energy equipment; the rated voltage and rated capacity of the single power cell are low, so multiple cells are combined in series and parallel to form the entire energy storage component, commonly known as the power battery pack; the design of the battery pack The key points include cell voltage, cell capacity, cell series-parallel connection and battery system management. Among them, the charge and discharge management of the battery pack system is the key technology for the use of battery packs. The built-in protection management unit of the finished battery pack components is generally designed as two independent working processes for charge and disc...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems of the prior art, the present invention provides a controlled battery pack device, which solves the problem that the power battery pack is in a through charge and discharge within the protection limit, and the volt-ampere impedance electric type parameters are in an uncontrolled and unadjustable free state, and cannot Technical defects of intelligent internal control modular operation

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