电压空间矢量变频系统圆形磁链逼近算法分析

Approximation Algorithm Analysis on the Circular Flux of the Voltage Space Vector Frequency Convert System

本文首先阐明了电压空间矢量和磁链矢量相互转换和依存的数学关系,并在此基础上对实现接近理想的圆形磁链的电动机变频调速的方法及算法进行探讨,主要对输出矢量所落扇区的判断,电压矢量的作用时间及合成给出对应的数学分析,以期改进和优化SPWM变频控制过程。

In this paper, we firstly illustrate the mathematical and logical conversion relations between the space-vector and the circular flux vector. On the basis of this relationship, we explore the methods and algorithms of the approximately ideal frequency control and primarily give out the corresponding mathematical analysis on the sector location of the output vector, the function time of the voltage space-vector as well as the composition of reference voltage vector in order to improve and optimize the SPWM process.