OCV estimation method and system based on recursive least square method, and electronic equipment

The invention discloses an OCV estimation method and system based on a recursive least square method and electronic equipment, and relates to the field of new energy. The method comprises the following steps: calculating system parameters of the dynamic reconfigurable battery by applying a recursive least square method; the system parameters comprise SoC measured values, OCV measured values and circuit parameters of the equivalent circuit; the circuit parameters comprise an R0 resistance value, an R1 resistance value and a capacitance value; the R0 resistance true value of the dynamic reconfigurable battery is obtained, the R0 resistance true value is used for correcting the R0 resistance value, and corrected system parameters are obtained; calculating an OCV estimated value according to the corrected system parameters; when the difference between the OCV measured value and the OCV estimated value is within a difference threshold range, determining the OCV value of the dynamic reconfigurable battery; the OCV