DTC技术开关表建立方法研究

The research on the establishing method of DTC technology switch table

在传统的矢量控制技术蓬勃发展起来以后,直接转矩控制技术(DTC)横空出世,它适用于高性能异步电动机变频调速系统。其方法是首先选择合适的定子电压空间矢量,其次使定子磁链的运动轨迹近似为圆形或是多边形,最终达到电磁转矩和磁链模值的跟踪控制的目的。以开关磁阻电机为例分析了直接转矩控制系统开关表的建立方法。

After the flourish development of traditional vector control technology,Direct Torque Control(DTC)turned out.It is a frequency control system suitable to high-performance asynchronous motor.Its method is firstly to select the appropriate stator voltage space vector,secondly to make the stator flux trajectory approximately be circular or polygonal,and finally to achieve tracking control to electromagnetic torque and flux linkage modulus.In this paper,a switched reluctance motor has been taken as an example to analyze the establishing method of direct torque control system switch table.