Method, device and medium for abnormal detection of battery charging characteristics based on time series
A battery charging and time-series technology, which can be used in measuring devices, measuring electricity, measuring electrical variables, etc., and can solve the problem of high battery loss and misjudgment rate.
Active Publication Date: 2021-07-09
杭州宇谷科技股份有限公司
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Problems solved by technology
[0007] The present invention provides a time-series-based method for detecting abnormal battery charging characteristics, which can better overcome the problem of high misjudgment rate caused by the inability to consider battery loss in existing battery charging abnormal detection methods
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Embodiment 1
[0031] combine figure 1 As shown, the present embodiment provides a time-series-based method for abnormal detection of battery charging characteristics, which includes the following steps:
[0032] Step S1, data collection
[0033] In this step, the current charging times k of the battery and the charging time of each cell i within the set voltage segment are collected , to obtain the cell charging time series data of each cell i , , and obtain the battery charging time series data D of the battery, ;
[0034] Step S2, data processing
[0035] In this step, the charging time for each cell i based on the STL algorithm process to obtain the trend component , periodic component and remainder , ;
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The present invention relates to the technical field of lithium battery charging processing, in particular to a method, device and medium for abnormal detection of battery charging characteristics based on time series. The method includes the following steps: step S1, data collection; step S2, data processing; step S3, abnormal detection based on the historical data of a single cell; and step S4, abnormal detection based on the current data of all the cells. The device is used to implement the above method, and the medium is used to store the above method. Through the method in the present invention, not only can it be better to detect whether a single battery cell is abnormal within its life cycle, but also can better detect whether any battery cell is abnormal compared to the rest of the battery cells, so it can Determination of abnormal charging is preferably realized.
Description
technical field [0001] The present invention relates to the technical field of lithium battery charging processing, in particular to a method, device and medium for abnormal detection of battery charging characteristics based on time series. Background technique [0002] Battery charging is an important part of battery use, and abnormal battery charging directly affects the cruising range of the battery. Abnormal battery charging detection can detect abnormal batteries in the charging process in advance, and then can better realize the early detection and processing of the entire battery operation and maintenance, and ensure the stability and safety of the entire battery system. [0003] In the Chinese patent with the publication number CN 103809124 A, a battery abnormality detection method and detection system are disclosed, which collect voltage change data at equal intervals during the charging process, and then compare all the collected voltages based on the normal distr...
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IPC IPC(8): G01R31/367
CPCG01R31/367
Inventor 肖劼胡雄毅余为才
Owner 杭州宇谷科技股份有限公司