Battery modeling method and device

A modeling method, battery model technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as inaccurate battery model valuation
CN106844833AInactive Publication Date: 2017-06-13GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GREE ELECTRIC APPLIANCES INC
Publication Date
2017-06-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a battery modeling method and device. The method comprises the following steps of: obtaining an equivalent circuit model of a target battery; determining an equivalent voltage function of the target battery according to the obtained equivalent circuit model of the target battery; and taking the equivalent voltage function of the target battery as a battery model of the target battery. According to the method and device disclosed by the invention, the technical problem that the value assessment is incorrect by utilizing the battery model in later periods as battery modeling cannot be carried out according to the changes of parameters of the batteries in the prior art is solved.
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Description

technical field

[0001] The invention relates to the field of storage batteries, in particular to a battery modeling method and device. Background technique

[0002] The internal chemical reaction of the battery is a complex nonlinear process. For example, when the battery is charging and discharging, there is a phenomenon of battery polarization; as the battery usage time increases, aging will occur; there are individual differences between different battery cells in the battery. In addition, the performance of the battery is related to many factors, such as the charge and discharge rate of the battery, ambient temperature, actual capacity, cycle times, internal resistance, power, self-discharge and other factors. Due to the wide variety of factors involved, it is difficult to accurately describe all battery performance in a battery model.

[0003] In related art, a battery modeling solution is provided. When using this scheme to establish a battery model, the influence o...

Claims

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