摘要
三电平SVPWM控制方法把逆变器和电机作为一个整体,得到的模型简单,电压利用率高,转矩脉动小。首先针对三电平SVPWM算法中参考电压矢量Uref模值的大小与调制比大小,讨论该矢量所在小扇区的具体位置,进而判断逆变器工作状态,最后,通过搭建SIMULINK仿真模型验证其正确性,为今后的高性能变频调速系统的研究作了铺垫及参考。
The three-level SVPWM control method takes the inverter and the motor as a whole,and then the obtained model is rather simple,and the voltage utilization rate is relatively high,and the torque ripple is small. Firstly,the location of the small sector of the vector Urefis discussed according to the magnitude of the reference voltage vector and the modulation ratio in the three-level SVPWM algorithm,and then the working state of the inverter is judged. Finally,the simulation model in SIMULINK is built,and the correctness of the system is verified,which paves the way for future research of the high performance variable frequency speed regulation system.
出处
《电力科学与工程》
2017年第10期68-73,共6页
Electric Power Science and Engineering
