Power equipment fault type diagnosis method and system, terminal and storage medium

The invention discloses a power equipment fault type diagnosis method and system, a terminal and a storage medium. The method comprises the following steps: establishing a fault equipment operation state abnormal data set according to an equipment information model and a spatial model of equipment operation data; establishing a least square support vector machine model according to the fault equipment operation state abnormal data set, introducing Lagrange multiplier method parameters, and optimizing the least square support vector machine model based on the KKT condition of the optimization problem and the minimum error of the least square support vector machine model; establishing a fault equipment operation state abnormity diagnosis model; a chaotic particle swarm optimization algorithm is adopted to optimize parameters of the fault equipment operation state abnormity diagnosis model, and an optimal fault equipment operation state abnormity diagnosis model is established; and performing power equipment fau