摘要
异步电机的参数对异步电机无速度传感器控制十分重要。针对异步电机难获得其较准确的电气仿真模型参数,提出采用对电机模型进行有限元分析计算获得其电气参数的方法。采用Ansoft电磁场分析软件,对目标电机进行有限元建模和分析,获得了较准确的定转子的电阻和电感值,以及其他电磁特性参数。然后搭建了异步电机无速度传感器控制的MATLAB/Simulink模型,将有限元分析计算得到的参数代入进行仿真,获得了异步电机无速度传感器控制的仿真结果。仿真结果表明,通过有限元分析计算得到的异步电机参数可以作为电机仿真参数来源。
The parameters of the induction motor（IM）plays a very important role in speed sensorless control of IM.Because it is difficult to obtain accurate parameters of IM for the model simulation,the author in this paper proposes an approach to analyze and calculate the motor model with the finite element method,to obtain the parameters of the motor model.So using the software ＂Ansoft Maxwell＂,a finiteelement model of the target motor is built and analyzed,to get a more accurate resistance and inductance values of the stator and rotor,as well as other electromagnetic characteristic parameters.Then,a MATLAB/Sumulink model controlled by the IM speed sensorless sensor is established,and the parameters from the finite-element analysis and calculation are substituted into the simulation,finally attaining the results of the simulation of IM speed sensorless control.The simulation results show that the IM parameters obtained in the finite-element analysis and calculation can be used as a source of IM simulation parameters.
出处
《电气自动化》
2013年第3期12-14,共3页
Electrical Automation
