Impact power stabilizing method and device based on adaptive time constant filter

The invention discloses an impact power stabilizing method and device based on a self-adaptive time constant filter, and relates to the technical field of low-voltage direct-current power supply or other technical fields, and the method comprises the steps: collecting the voltage and current of a load, carrying out the dq conversion of the voltage and current, obtaining the load power according to the d-axis and q-axis components of the voltage and current, and carrying out the self-adaptive time constant filter. Performing sliding window filtering processing on the load power to obtain impact power, normalizing the charge states of the energy storage battery and the target capacitor, obtaining an adaptive time constant of a low-pass filter according to the normalized charge states of the energy storage battery and the target capacitor, and executing power distribution operation when the impact power is greater than or equal to a preset threshold value, comprising the steps of adjusting a low-pass filter acco