PNGV model parameter calculation method and device, storage medium and computer equipment
A technology of model parameters and calculation methods, which can be used in measuring devices, instruments, measuring electricity, etc., and can solve the problem that battery model parameters cannot be estimated in real time and accurately.
Inactive Publication Date: 2020-09-18
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
The active or passive equalization device needs to balance the single cells according to the battery state and other parameters, and the state acquisition of the battery depends on the accurate calculation of the model parameters of the battery. Model parameters
Method used
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[0036] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0037] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0038] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.
[0039] It should be understood that the term "an...
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The embodiment of the invention provides a PNGV model parameter calculation method and device, a storage medium and computer equipment. The method comprises the steps of obtaining multiple terminal voltages and multiple loop currents of a battery; constructing a first matrix according to the plurality of terminal voltages and the plurality of loop currents; constructing a second matrix according to the plurality of sampling voltages; generating a plurality of equivalent parameters according to the first matrix and the second matrix; and calculating a plurality of model parameters of a PNGV model according to the plurality of equivalent parameters, the plurality of model parameters including a voltage source value of a voltage source, a polarization capacitance value of a polarization capacitor, a polarization resistance value of a polarization resistor, a resistance value of a resistor and a capacitance value of a capacitor; and constructing the first matrix and the second matrix according to the plurality of sampled terminal voltages and the plurality of loop currents, and calculating a plurality of model parameters of the PNGV model according to the first matrix and the second matrix. According to the technical scheme in the embodiment of the invention, the model parameters of the PNGV model can be accurately calculated in real time.
Description
【Technical field】 [0001] The invention relates to the technical field of batteries, in particular to a calculation method, device, storage medium and computer equipment for PNGV model parameters. 【Background technique】 [0002] New energy vehicles have the advantages of zero emissions, and become the preferred means of transportation for saving fossil energy and reducing environmental pollution. The pure electric vehicle in the new energy vehicle uses the battery to store electric energy, and the electric energy drives the motor to run normally to make the vehicle run normally. [0003] Pure electric vehicles are often equipped with a large number of single batteries, and these single batteries are different in manufacturing process, working status and working environment, which makes these single batteries unbalanced during use. In order to balance the differences between single cells and maximize the effectiveness of the battery pack, the battery pack needs to be equipped...
Claims
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Login to View More IPC IPC(8): G01R31/367G01R31/385G01R31/389G01R31/396
CPCG01R31/367G01R31/385G01R31/389G01R31/396
Inventor 孙力林鹏金鹏
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY