Method, device and equipment for determining battery stack model and storage medium

Abstract

The application provides a battery stack model determination method and device, equipment and a storage medium. A three-dimensional network model of a battery stack is obtained, the three-dimensional network model comprising a plurality of unit models, the unit models being used to represent a cross section of a preset length in a single flow channel of a fuel cell stack, the three-dimensional network model comprising a source term equation of a plurality of physical fields, and an inlet parameter of each unit model being connected to an outlet parameter of an upstream unit model. Each unit model in the three-dimensional network model is initialized so that each unit model has the same initial gas composition and temperature. At the temperature, a gas flow resistance of each unit model is determined based on the initial gas composition, and an electrochemical reaction rate of each unit model under the initial gas composition is calculated based on the source term equation of the plurality of physical fields. The inlet composition and the outlet composition of each unit model are updated based on the electrochemical reaction rate and the flow resistance to obtain a target battery stack model.

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