利用神经网络预测高速变频电机转子闭口槽集肤效应系数  

Using neural network to estimate the skin effect cofficient of squirrel-cage close-slot high-speed asychronous motor

作　　者：方瑞明[1] 

机构地区：[1]华侨大学电气工程系,福建泉州362011

出　　处：《电机与控制学报》2005年第2期156-160,共5页Electric Machines and Control

基　　金：福建省青年科技创新基金资助项目(2004J032);华侨大学博士基金资助项目(2003B01)

摘　　要：由于逆变电源中大量谐波分量的存在,高速异步电机转子槽中的集肤效应现象更加严重。因此,在电机设计和分析过程中,必须准确考虑集肤效应对转子参数的影响。本文对转子常用槽形的集肤效应进行分析,指出闭口圆形槽能够有效削弱集肤效应的影响,在此基础上,提出了一个基于神经网络的电机转子槽集肤效应系数预测模型。计算结果表明该模型具有较高的准确性,能够快速而准确的给出转子槽的集肤效应系数,对于高速异步电机转子设计与仿真具有指导意义。The skin effect occurred at high-speed asynchronous motor rotor slot becomes more grievous because of the fed inverter’s harmonics. So it is important to take account into the influence of skin effect on rotor’s parameters accurately. On the basis of analyzing the characteristic of different rotor slot (shape’s) skin effect using FEM, this paper indicates that close round slot shape can weaken the skin effect. Then a neural network is developed to estimate the skin effect coefficient of rotor slot. After trained with the data calculated by FEM, the model can estimate the influence of skin effect quickly and accurately, which leads to a powerful approach to design and simulation of high-speed asynchronous motor.

关 键 词：变频电机 转子 闭口槽 集肤效应 神经网络 逆变电源 异步电机 

分 类 号：TM344.6[电气工程—电机] TP183[自动化与计算机技术—控制理论与控制工程]