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

Inactive Publication Date: 2017-06-13
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a battery modeling method and device to at least solve the technical problem of inaccurate battery model estimation in the related art due to the inability to model the battery according to the changes of battery parameters

Method used

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  • Battery modeling method and device
  • Battery modeling method and device

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Embodiment 1

[0027] According to an embodiment of the present invention, a method embodiment of a battery modeling method is provided. It should be noted that the steps shown in the flow charts of the drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0028] figure 1 is a flowchart of an optional battery modeling method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0029] Step S102, obtaining an equivalent circuit model of the target battery;

[0030] Step S104, according to the obtained equivalent circuit model of the target battery, determine the equivalent voltage function of the target battery;

[0031] Step S106, taking the equivalent voltage function of the target battery as the batt...

Embodiment 2

[0051] According to an embodiment of the present invention, a device embodiment of a battery modeling device is provided.

[0052] Figure 6 is a schematic diagram of an optional battery modeling device according to an embodiment of the present invention, such as Figure 6 As shown, the device includes: an acquisition unit 602, used to acquire the equivalent circuit model of the target battery; a determination unit 604, used to determine the equivalent voltage function of the target battery according to the acquired equivalent circuit model of the target battery; modeling Unit 606, configured to use the equivalent voltage function of the target battery as the battery model of the target battery.

[0053] It should be noted that the target battery here may be a battery cell, or a battery pack composed of multiple battery cells connected in series or in parallel. The equivalent circuit model of a battery cell can be obtained directly from the chemical reaction of the battery, ...

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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.

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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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 宋泽琳雷龙郭清风许敏
Owner GREE ELECTRIC APPLIANCES INC
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