SVPWM变频调速系统中电流检测和矢量转换电路的设计

Design of Current Detection and Vector Conversion Circuits in the SVPWM Variable Frequency Speed Control System

本文简介了空间矢量脉宽调制变频调速系统，针对该矢量控制系统中存在矢量坐标转换这一非线性环节和电流检测环节，研制了一种高精度的快速电流检测和矢量转换电路，此电路从属于系统主控制器。通过将次电路从主控制器分离出来的方法，为主控制器节省了有效的处理时间。

This paper deals with SVPWM variable frequency speed control system, aimes at the existences of the links of nont linear vector coordinate conversion and current detection in the vector control system, develops a circuit of current detection and vecltor conversion with high accuracy and high speed, the circuit is subordinated to the main system controller. By separating the subordnate circuit from the main controller, more efficient time is saved.