Steady state control method and device of battery, terminal equipment and storage medium

The invention discloses a battery steady state control method and device, terminal equipment and a storage medium, and the method comprises the steps: obtaining the actual current of a to-be-controlled battery and the target power in a steady state, and determining the target voltage in the steady state according to the target power in the steady state and the actual current; generating corresponding air flow, bypass air flow and fuel flow according to the actual current and the target voltage; performing iterative adjustment on the fuel flow until the power of the to-be-controlled battery reaches a steady state; wherein during each iterative adjustment, the actual current, the air flow, the bypass air flow and the fuel flow are input into a black box model of the SOFC system, so that the black box model generates a predicted voltage when the battery to be controlled is in a steady state; and the difference value between the predicted voltage and the target voltage is calculated, the fuel flow is adjusted acc