摘要
针对直接转矩控制转矩脉动大和开关频率不固定等问题,本文基于空间矢量调制的直接转矩控制进行研究。在Matlab7.0/Simulink的环境下,建立了基于传统直接转矩控制和基于空间矢量调制直接转矩控制的仿真控制模型,通过与传统直接转矩控制控制系统相比较,仿真结果表明采用空间矢量调制后,具有转矩脉动小、开关频率恒定及鲁棒性强等优越性能。
In order to solve the problem of torque ripple and variable swltching trequency, a new method of DTC based on space vector pulse width modulation （SVPM） is researched in this paper. Both traditional DTC and the one based on SVPWM are modeled and simulated on the platform of MATLAB. The simulation results indicate that the proposed control method can reduce torque ripple and get constant switching frequency and also have a better dynamic and static performance through the comparison of two models.
出处
《大电机技术》
北大核心
2013年第2期23-26,30,共5页
Large Electric Machine and Hydraulic Turbine
关键词
异步电机
直接转矩控制
电压空间矢量调制
圆形磁链
仿真
induction machine
direct torque control
space vector pulse width modulation
circular flux orbit
simulation
