Wind turbine blade structure parameter modeling method and device and storage medium

The embodiment of the invention provides a wind turbine blade structure parameter modeling method and device and a storage medium. The method comprises the steps that a blade geometric model, operation data of a unit, blade mass distribution data and blade vibration data are obtained; according to the blade geometric model, the operation data of the unit, the blade mass distribution data and preset rigidity distribution data, determining a first rigidity total matrix of the blade geometric model; determining a stress matrix according to the blade geometric model and the operation data of the unit; determining a deformation model of the blade geometric model according to the blade vibration data, the first stiffness total matrix and the blade mass distribution data; determining a second total rigidity matrix according to the stress matrix and the deformation model of the blade geometric model; and taking the second total rigidity matrix as a first total rigidity matrix, and recalculating the second total rigid