Model data hybrid driven power system small interference stability assessment method

The invention discloses a small-interference stability evaluation method for a model data hybrid-driven power system, and the method comprises the steps: obtaining a target topology of the power system, carrying out the deterministic power flow analysis and modal analysis according to the target topology, and obtaining a quiescent working point in a deterministic scene; and performing probability distribution modeling on new energy uncertainty input of the power system in combination with converter characteristic constraints, and establishing an impedance model of the power system according to new energy dynamic characteristics and static working points in a deterministic scene. And calculating an expression of a dominant characteristic modal real part of the system, and analyzing the influence of the uncertainty on the small interference stability of the new energy power system based on the expression. In this way, the data driving polynomial basis is determined for the established model, the small interfere