Storage battery performance prediction method and system based on combined model

The invention provides a storage battery performance prediction method and system based on a combined model, and the method comprises the steps: obtaining a change trend representation vector of the internal resistance of a storage battery based on the historical operation data of the internal resistance of the storage battery; based on storage battery internal resistance historical operation data and storage battery internal resistance related influence factors, extracting correlation among the influence factors, and obtaining a global representation vector of storage battery internal resistance change; based on the change trend representation vector and the global representation vector, performing combined prediction of the internal resistance of the storage battery by adopting meta learning and a gating network to obtain a combined representation vector of the change of the internal resistance of the storage battery; carrying out feature extraction on the storage battery charging and discharging data to ob