摘要
对9相感应电机的矢量控制系统及其谐波注入技术进行了研究。首先,推导了9相电机在正交坐标系上的数学模型,将9相电机分解到4个独立平面上,并在各平面上对磁链和转矩进行单独控制。然后,在Matlab中搭建了电机模型和矢量控制系统。与传统的抑制谐波的控制策略不同,在电机定子侧注入3次、5次、7次谐波电压。最后,利用Matlab/Simulink仿真对比了谐波注入与正弦供电2种方式下的电机转速、电磁转矩和定子电流波形。仿真结果验证了谐波注入技术对电机性能的提升作用。
The vector control system of nine-phase induction motor and its harmonic injection technology were studied.Firstly,the mathematical model of nine-phase motor in orthogonal coordinate system was deduced,the ninephase motor was decomposed into four independent planes,and the flux and torque were controlled separately on each plane,then the motor model and vector control system were built in Matlab.In contrast to the conventional control strategy for suppressing harmonics,the 3,5 and 7 harmonics were injected at the stator side of the motor.Finally,Matlab/Simulink was used to simulate the motor speed,electromagnetic torque and stator current waveforms in both harmonic injection and sinusoidal power supply.The simulation results verify the effect of harmonic injection on the performance of the motor.
作者
梅柏杉
晋世博
MEI Baishan;JIN Shibo(School of Electrical Engineering,Shanghai University of Electric Power,Shanghai 200090,China)
出处
《电气传动》
北大核心
2018年第8期76-79,92,共5页
Electric Drive
基金
上海绿色能源并网工程技术研究中心(13DZ2251900)
