中文摘要：

基于Preisach磁滞模型，根据磁滞回线的对称性，提出辨识Preisach分布函数的方法，该方法把Preisach分布函数视为两个一维函数的乘积，将分布函数中复杂的双重积分求解问题转化为求解双线性方程组的问题。并基于爱泼斯坦方圈测量装置对变压器、电机中常用材料（B30P105）进行了相应的实验，仿真及实验结果的比对验证了该方法的可行性和实用性。

英文摘要：

Based on Preisach model and the symmetry of hysteresis loop,a method is proposed to identify the Preisach distribution function.In this method,the Preisach function is considered as a product of two one-dimensional functions.The bilinear equations are solved instead of solving double integration required in traditional method.Then based on the Epstein square measuring equipment,the commonly used material(B30P105)in transformers or motors are used to research.The feasibility and practicability of the model are indicated by the consistency of the simulation results with the experimental results.