摘要
六边形定子磁链直接转矩控制利用逆变器产生的运动电压矢量和零电压矢量的实时交替作用,实现电磁转矩的两点式控制,迫使实际转矩跟踪给定值。文章建立了异步电机、逆变器、转速调节器、磁链滞环比较器、转矩滞环比较器等的仿真模型,构成六边形磁链直接转矩控制系统。对加减负载情况下六边形磁链系统的磁链轨迹、电流、电磁转矩、转速等反映电机运行性能的指标进行了仿真分析,仿真结果验证了系统模型的正确性和可行性。
Direct torque control technique based on hexagon track of flux accomplishes two-point control for electromagnetic torque by Alternating function of travel voltage vector and zero voltage vector produced by inverter.Real torque in accord with the given torque can realize.The DTC system consists asynchronous motor,inverter,speed regulator,flux hysteresis controller,torque hysteresis controller and etc.Flux tracks,current curves,torque waveforms,speed waveforms are simulated in this paper.The results demonstrate the system is reasonable and effective.
出处
《四川理工学院学报（自然科学版）》
CAS
2011年第6期649-651,共3页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
关键词
异步电动机
直接转矩控制
电压空间矢量
六边形磁链
仿真
asynchronous motor
direct torque control
voltage space vector
hexagon track of flux
simulation
