Voltage stabilizing and filtering system and method for power grid voltage

The invention provides a voltage stabilizing and filtering system and method for power grid voltage, and relates to the technical field of voltage stabilizing and filtering, and the system comprises a data detection module which is used for detecting the input voltage, the response speed, the stability margin and the static error of a power grid, and detecting the capacitance value of a grounding capacitor of the power grid and the inductance value of a line; the preprocessing module is used for carrying out data processing on the response speed, the stability margin and the static error of the power grid, carrying out correlation analysis and generating a correction coefficient of the output voltage of the power grid; and the data analysis module is used for generating the cut-off frequency of a filter according to the capacitance value of the capacitor and the inductance value of the inductor, and filtering the input voltage of the power grid through the cut-off frequency to obtain the filtered input voltag