电机四象限运行的直接转矩控制动态加载

doi:10.13229/j.cnki.jdxbgxb201401045

摘要/Abstract

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。

关键词: 电气工程, 动态加载, 直接转矩控制, 四象限运行

Abstract:

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.

Key words: electrical engineering, dynamic loading, direct torque control, four quadrant operation

中图分类号:

TM306

王德成, 林辉. 电机四象限运行的直接转矩控制动态加载[J]. 吉林大学学报(工学版), 2014, 44(01): 276-280.

WANG De-cheng, LIN Hui. Approach of direct torque control dynamic loading for motor four quadrant operation[J]. 吉林大学学报(工学版), 2014, 44(01): 276-280.

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