针对复杂非线性系统单模型建模存在计算量大和精度差的问题,提出一种采用仿射传播聚类的多模型LSSVM建模方法,通过仿射传播聚类对样本数据按输入集和输出集二次聚类划分,并分别建立LSSVM子模型,非线性系统模型通过子模型加权合成.将该方法应用于两电机变频调速系统的张力和速度模型辨识,仿真结果表明,该建模方法具有较高的精度,能准确拟合系统的非线性特性. In order to solve the problem of large computational complexity and poor accuracy of single-model modeling of complex nonlinear systems, a multi-model LSSVM modeling method based on affine propagation clustering is proposed. By using affine propagation clustering, Then the LSSVM submodel is established separately and the nonlinear system model is weighted by submodels. The proposed method is applied to the identification of tension and velocity models of two-motor VVVF system. The simulation results show that the proposed method has Higher accuracy, accurate fitting system nonlinear characteristics.