DTC和SFOC相结合的交流调速方法的研究  

Research on the Method of AC Speed Control Based on the Combination of DTC & FOC

作　　者：王孟[1] 黎亚元[1] 陈庆[1] 钟小凡[1] 

机构地区：[1]西华大学数控研究所,610039

出　　处：《电机技术》2006年第2期26-29,共4页Electrical Machinery Technology

摘　　要：提出一种将直接转矩控制(DTC)与定子磁场定向控制(SFOC)相结合的电压调节方式,一方面采用定子磁场定向控制,将交流量转化成直流量以便于调节,另一方面又采用直接转矩控制技术调节转矩和磁通的偏差以加快响应,同时使用电压调节法避免了电流的解耦,而转矩和磁通的连续调节方式则克服了传统的直接转矩控制带来的转矩脉动。通过仿真证明了该调速系统的性能。A new strategy of stator flux oriented control is presented in this paper. This control system synthesizes the advantages of FOC and DTC. First, by using FOC in the system, AC parameters can be converted in to DC for convenient control. Second, the transient performance of the system can be improved by using DTC. Third, current decoupling can be avoided by using the method of voltage control. Through controlling the flux and torque continuously, the torque ripple can be reduced. The effect of proposed method has been proven by simulation.

关 键 词：定子磁场定向控制 直接转矩控制 解耦 

分 类 号：TM34[电气工程—电机] TP368.1[自动化与计算机技术—计算机系统结构]