摘要
本文提出了一种基于静止直角坐标系的简单、实用的非线性感应电机模型,具有相对简练的表达方式和令人满意的精度。模型利用虚拟的“线性磁链”,引入非线性饱和因子考虑电机磁链饱和影响,并用并联电阻计入涡流和磁滞损耗。在电机设计信息未知的情况下,所述模型参数可以很容易地使用传统的电机实验(空载和短路)获取。文中还介绍了使用该模型进行仿真的方法,适合用CC++语言或simulink中的S函数编程实现。数值仿真和实验结果验证了模型的实用性和有效性。
A new simplified and practical nonlinear model of induction machine in stationary reference frame is presented in this paper. It has satisfactory accuracy and possesses concise equivalent circuit form. In this proposed model, both the fictitious flux and nonlinear saturation factor are introduced for considering the effect on motor magnetic circuit saturation, and the eddy and hysteresis losses are also taken into account through a parallel resistance in the equivalent circuit. In the absence of detailed motor design information, the parameters in the model can be easily determined by the conventional no-load and lock-rotor tests. An improved method of simulation with the model is described, which is suitable to program with C/C++ or S-Function of Simulink. Both the experiment and simulation results have verified the practicality and effectiveness of the model.
出处
《电工电能新技术》
CSCD
北大核心
2005年第3期31-34,62,共5页
Advanced Technology of Electrical Engineering and Energy
基金
国家"863"高技术项目(2003AA501123)
关键词
异步电机
非线性建模
仿真
虚拟磁链
饱和因子
induction motor
nonlinear modeling
simulation
fictitious flux
saturation factor
