一种改进磁链计算模型分析

Analysis of an Improved Flux Linkage Calculation Model

准确获取异步电动机转子磁链信号在高性能电机控制系统中具有十分重要的意义。介绍了常用转子磁链计算的电压和电流模型，针对各自存在的部分问题，提出了一种基于磁链计算方程进行组合的改进计算模型。在此基础上，根据矢量控制理论，采用Matlab／Simulink软件设计了异步电机矢量控制系统。仿真结果表明了该理论的正确性和可行性。

Accurate acquisition of asynchronous motor rotor flux information plays a significant part in high-performance motors control systems. The common voltage and current models for rotor flux calculation are described in the paper. As the two models have some problems respectively, an improved calculation model based on the combining rotor flux calculation equation was presented. And based on this in turn, the asynchronous motor vector control system is designed using Matlab/Simulink software according to the vector control theory. The simulation result proves that the theory is valid and feasible.