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Method and device for rapidly detecting complementary energy of power battery

A detection method and power battery technology, which are applied in measurement devices, battery recycling, measurement of electricity, etc., can solve the problems of small calculation amount of equivalent circuit model, difficulty in identification of relevant parameters, and difficulty in ensuring detection accuracy and efficiency at the same time. The effect of detection accuracy and efficiency

Active Publication Date: 2022-04-15
JINAN UNIVERSITY
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Problems solved by technology

[0003] At present, the number of decommissioned power batteries is huge, and it is difficult to guarantee the detection accuracy and efficiency in the technology of related battery residual energy detection.
The direct measurement method takes a long time and is not suitable for large-scale measurement; the electrochemical impedance spectroscopy method has not been widely promoted due to expensive equipment; the equivalent circuit model has a small amount of calculation, but its robustness is poor, and the residual energy detection under different working conditions is easy Errors are generated; the electrochemical model has high precision, but it is difficult to identify related parameters

Method used

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  • Method and device for rapidly detecting complementary energy of power battery
  • Method and device for rapidly detecting complementary energy of power battery
  • Method and device for rapidly detecting complementary energy of power battery

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Embodiment Construction

[0061] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0062]Aiming at the technical problems existing in the prior art, one aspect of the present invention provides a method for quickly detecting the residual energy of a power battery, such as figure 1 As shown, the method includes the following steps:

[0063] Carry out preliminary training on the sample battery data through the least squares support vector machine method to determine the model construction parameters;

[0064] Training the battery residual energy detection model according to the model construction parameters and the collected charge and discharge data;

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Abstract

The invention discloses a power battery complementary energy rapid detection method and device, and the method comprises the steps: carrying out the preliminary training of sample battery data through a least square support vector machine method, and determining model construction parameters; training a battery complementary energy detection model according to the model construction parameters and the collected charging and discharging data; and acquiring to-be-detected battery data, and generating a complementary energy detection result through the battery complementary energy detection model. The method improves the detection precision and efficiency, and can be widely applied to the technical field of battery detection.

Description

technical field [0001] The invention relates to the technical field of battery detection, in particular to a method and device for quickly detecting residual energy of a power battery. Background technique [0002] With the development of the new energy vehicle industry, the scrapping of vehicle power batteries has gradually become a large scale, and the remaining capacity of these batteries is mostly more than 80%. If they are directly eliminated, it will cause a waste of resources. The cascading utilization method can endow decommissioned batteries with new uses, prolong the service life of the batteries, and improve the efficiency of the batteries. The key to cascading utilization lies in the residual energy detection of the power battery. [0003] At present, the number of decommissioned power batteries is huge, and it is difficult to guarantee the detection accuracy and efficiency in the related battery residual energy detection technology. The direct measurement meth...

Claims

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Application Information

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IPC IPC(8): G01R31/367G01R31/378
CPCY02W30/84
Inventor 郑林锋徐彬翔肖志能黄乙恒马平川肖雅秋王新月朗国团
Owner JINAN UNIVERSITY
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