Battery simulation modeling method and device and battery equivalent model
A technology of simulation modeling and modeling method, which is applied in the field of efficiency model and battery simulation modeling, can solve the problems of low simulation accuracy and complex model structure, and achieve the effects of high simulation degree, improved simulation efficiency and simple structure
Active Publication Date: 2020-05-08
BEIJING GOLDWIND CARBON NEUTRAL ENERGY CO LTD
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[0006] In view of the shortcomings of the existing methods, this application proposes a battery simulation modeling method, device and battery equivalent model to solve the technical problems of complex model structure and low simulation accuracy in the prior art
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[0155] In an alternative embodiment, such as Figure 13 As shown, the power calculation unit 1230 includes a current integration subunit 1231 . In this embodiment, the current integration subunit 1231 is used to integrate the collected simulated charging current according to the simulated charging time during the simulated charging process to obtain the simulated charging capacity, and to obtain the simulated charging capacity according to the simulated charging capacity and the battery equivalent model. Rated capacity, determine the SOC of the battery equivalent model (such as Figure 13 In the simulated discharge process, the collected simulated discharge current is integrated according to the simulated discharge time to obtain the simulated discharge power, and the battery equivalent model SOD is determined according to the simulated discharge power and the rated capacity of the battery equivalent model.
[0156] In another alternative embodiment, such as Figure 14 As sh...
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The embodiment of the invention provides a battery simulation modeling method and device and a battery equivalent model. The battery simulation modeling method comprises the following steps of: acquiring actually measured internal resistance data and actually measured charging and discharging data of a battery; establishing equivalent internal resistance according to the actually measured internalresistance data, and determining a charging and discharging simulation module conforming to charging and discharging characteristics of the battery according to the actually measured charging and discharging data; and respectively establishing connection relationships between an output end and a control end of a pre-established equivalent controlled voltage source and the equivalent internal resistance and the charging and discharging simulation module to form a battery equivalent model. According to the embodiment of the invention, modeling is carried out by adopting a battery equivalent mode of controlled voltage source series internal resistance, the established battery equivalent model is simple in structure, and the simulation speed can be increased; simulation modeling is carried out based on the actually measured internal resistance data, the actually measured charging and discharging data and parameter identification of the actually measured internal resistance data and the actually measured charging and discharging data, the simulation degree is high, and the implementation is easy.
Description
technical field [0001] The present application relates to the technical field of electrical simulation, in particular, the present application relates to a battery simulation modeling method, device and battery equivalent model. Background technique [0002] The equivalent simulation of the battery is a very critical step in the study of the electrical characteristics of the battery. The battery equivalent model is based on the working principle of the battery. The dynamic characteristics of the battery are composed of circuit components such as resistors, capacitors and voltage sources. The dynamic characteristics are simulated to form an equivalent model of the battery. [0003] Commonly used battery equivalent models include: RC (resistor-capacitor) model, Thevenin model (also known as first-order RC model), PNGV (Partnership for a New Generation of Vehicles, new generation vehicle cooperation plan) model and Peuker model. Based on the internal resistance and capacitance...
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IPC IPC(8): G01R31/367
Inventor 张广洁
Owner BEIJING GOLDWIND CARBON NEUTRAL ENERGY CO LTD