通用性电气传动系统中DTFC-SVM无传感器控制技术探究

Exploration of DTFC-SVM Sensorless Control Technology in Universal Electrical Transmission Systems

通用性电气传动系统的核心构成包括电机、电源、机械传动机构等,研究中针对此类系统广泛使用的同步磁阻电动机,提出DTFC-SVM无传感器控制技术,在传统的直接扭矩控制方法中引入空间矢量调制和预期电压矢量,从而改善转矩和磁链脉冲过大的缺陷。经Matlab仿真测试,改进后的控制方法能够提升电机的转速和转矩响应,这两项性能参数的稳定性也明显增强。

The core components of a universal electrical transmission system include motors,power supplies,mechanical transmission mechanisms,etc.In the research,DTFC-SVM sensorless control technology is proposed for synchronous reluctance motors,which are widely used in such systems.Space vector modulation and expected voltage vector are introduced in traditional direct torque control methods to improve the defects of excessive torque and flux pulse.After Matlab simulation testing,the improved control method can improve the speed and torque response of the motor,and the stability of these two performance parameters is also significantly enhanced.