Battery consistency optimization method and system based on dynamic regular energy condensation analysis

Abstract

This invention belongs to the field of battery management technology and discloses a battery consistency optimization method and system based on dynamic regularization energy aggregation analysis. The method includes acquiring the charge and discharge voltage data of each battery cell in a battery pack under test; calculating the optimal regularization path between any two battery cells based on the voltage data; calculating the instantaneous energy at each point on the optimal regularization path; calculating the total path energy based on the instantaneous energy at each point; constructing a regularization path energy matrix based on the total path energy; calculating the battery pack's inconsistency score based on the energy matrix; judging based on the inconsistency score: if it exceeds a threshold, the battery pack is considered to have high inconsistency; otherwise, the battery pack is considered to have good consistency; performing cluster analysis on the battery cells in the battery pack with high inconsistency; and selecting battery groups with high consistency within the battery pack based on the clustering results. This invention can comprehensively analyze the inconsistency of battery packs and optimize their consistency.

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