A battery charging and discharging intelligent management system
An intelligent management system, charge and discharge technology, applied in battery circuit devices, secondary batteries, charge equalization circuits, etc., can solve problems such as different characteristics of battery cells, excessive discharge of battery cells, and aggravate differences in battery cells, so as to reduce complexity and production costs, and the effect of avoiding the erection of lines
Active Publication Date: 2018-01-16
苏州锂安新能源科技有限公司
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Problems solved by technology
Therefore, when using a battery pack of battery cells connected in series, there will be such a problem: when charging, even if some battery cells are overcharged in the same battery pack, there are still some battery cells that have not yet reached saturation; , in the same battery pack, some battery cells have not been fully discharged, but some battery cells are still over-discharged
In addition, if a battery cell is over-discharged / charged for a long period of time, significant deterioration may occur in the material constituting the battery cell, so that the characteristics of the battery cell become different, and this deterioration is one of the reasons for exacerbating the variation between battery cells
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[0035] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.
[0036] combine figure 1 As shown, the battery charging and discharging intelligent management system includes a main control module and a plurality of intelligent battery modules respectively connected to the main control module, and the plurality of intelligent battery modules are connected in series.
[0037] The main control module, according to the remaining capacity signal sent by the intelligent battery module, according to the principle that the remaining capacity is low, the charging power is high or the discharging power is low, and the remaining capacity is high, the charging power is low or the discharging po...
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The invention discloses an intelligent management system for battery charge and discharge. The intelligent management system comprises a plurality of intelligent battery modules mutually connected in series and a main control module, wherein each intelligent battery module is connected to the main control module respectively to provide battery residue capacity for the main control module and provide maximum chargeable or discharge powder for the main control module. According to signals of the residue capacity sent by the intelligent battery modules, the main control module provides real-time charge power or discharge power of each intelligent battery module according to the principle that when the residue capacity is low, the charge power is high or or the discharge power is low, or when the residue capacity is high, the charge power is low or the discharge power is high, and the intelligent battery modules perform input-output regulation according to the real-time power given by the main control module. In the intelligent management system, the modules can be randomly connected in series or connected in parallel, after batteries with different states of charge are connected in series, the balance can be achieved basically through one-time or several-time charge or discharge.
Description
technical field [0001] The invention belongs to the technical field of batteries, in particular to an intelligent management system for charging and discharging batteries. Background technique [0002] The battery management system is usually responsible for the calculation of battery power in the battery pack, battery protection, power balance control between batteries, and signal communication inside and outside the battery management system. In the prior art, products that generally use batteries need to be controlled with a battery management system. [0003] Because it is difficult to ensure complete uniformity in the battery manufacturing process, there will be differences in charging or discharging characteristics between battery cells connected in series. Therefore, when using a battery pack of battery cells connected in series, there will be such a problem: when charging, even if some battery cells are overcharged in the same battery pack, there are still some batt...
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IPC IPC(8): H02J7/00H01M10/42H01M10/48
CPCH01M10/4207H01M10/482H01M2010/4271H02J7/0014Y02E60/10
Inventor 吴晓东
Owner 苏州锂安新能源科技有限公司