摘要
多电平逆变器在直接转矩控制系统中,对减小转矩脉动有积极作用,但中点电位稳定与否,对系统运行的可靠性带来很大影响。这里提出一种电压矢量的合成方法,既能实现直接转矩控制,又能控制中点电压稳定,对分析结论进行了程序仿真和实际装置实验,结果都证明该方法有效。
Multilevel inverters have positive effect on reducing the torque ripple in the direct torque control system. However, the stability of the mid-point potentials brings very big impact on the reliability of the system.This paper puts forward a kind of voltage vector synthesis method, which can realize the control of direct torque and control the stability of mid-point voltage at the same time.The author experiments the conclusion by the simulation procedure with practical test and this new method turns out to be useful.
出处
《电力电子技术》
CSCD
北大核心
2012年第4期72-74,共3页
Power Electronics
关键词
逆变器
三电平
直接转矩控制
转矩脉动
inverter
three-level
direct torque control
torque ripple
