电机四象限运行的直接转矩控制动态加载  

Approach of direct torque control dynamic loading for motor four quadrant operation

作　　者：王德成[1] 林辉[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《吉林大学学报（工学版）》2014年第1期276-280,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：高等学校博士学科点专项科研基金项目(20106102110032)

摘　　要：提出了一种基于直接转矩控制的异步电机动态加载方法。以工作在直接转矩控制模式下的异步电机作为加载电机,通过减速机和被测电机连接。根据被测电机的运行状态和所需负载转矩特性,计算加载电机的给定转矩,使加载电机在直接转矩控制模式下四象限运行提供加载转矩。以永磁同步电机调速系统为对象的仿真实验结果表明:该方法可以快速准确地提供动态加载所需转矩,并减小加载电机转矩波动对动态加载的影响。A new dynamic loading approach is proposed, which is based on asynchronous motor direct torque control. An asynchronous motor under direct torque control model is selected as the loading motor. It is connected to the testing motor through a speed reducer. The direct torque control instruction of the loading motor is determined by the running condition and load torque features of the testing motor. The loading motor works at four quadrant operation, providing demanded torque to the testing motor. The proposed method was applied on permanent magnet synchronous motor speed control system. Simulation result shows that the proposed approach can provide dynamic loading demanded torque quickly and exactly. It can also reduce torque ripple influence on the dynamic loading induced by direct torque control.

关 键 词：电气工程 动态加载 直接转矩控制 四象限运行 

分 类 号：TM306[电气工程—电机]