摘要
直接转矩控制系统具有控制结构简单、动态响应快等特点,它在很大程度上解决了矢量控制中计算复杂、特性易受电动机参数变化的影响、实际性能难以达到理论分析结果的一些重要技术问题.在弱磁范围内,由于定子磁链空间矢量在全电压控制时是以最大的轨迹速度旋转的,所以改变磁链给定值大小,也就改变了路径的长短,从而达到改变角的大小而调节转矩的目的.弱磁范围内直接转矩控制系统恒功率调节已成功的应用于大功率的电气传动控制,是一种具有较高动态响应的交流调速控制技术.
Direct self-control system has such characteristics as simple control structure and fast response of dynamic. It has solved such important technical problems to the biggest degree such as the complicated calculation of transvector control system, the specific property of it affected easily by the change of parameters of electric motor, and it is difficult for the real function to meat the result of theoretical analysis. In limits of weak magnetic, because the stator magnetic chain transvector control controlled by the all voltage runs at the highest speed of track , the change of given data of magnetic chain means to change the length of track so as to adjust the revolution by changing the size of the angle. The constant power regulation based on direct self-control system within limits of the weak magnetic has been successfully applied in the electric transmission control with the higher power, which is a technology of AC speed control with higher dynamic effect.
出处
《常熟理工学院学报》
2009年第2期74-77,共4页
Journal of Changshu Institute of Technology
关键词
直接转矩控制
弱磁范围
恒功率调节
切换问题
direct self-control
limits of weak magnetic
constant power regulation
exchange problem
