摘要
研究了一种基于模型参考自适应无速度传感器的永磁同步电机直接转矩控制系统:将永磁同步电机的磁链模型作为参考模型,估算的定子磁链模型作为可调模型,设计了自适应定律对电机的转速与定子电阻同时进行跟踪辨识,使用空间电压矢量调制技术组成了永磁同步电机无速度传感器直接转矩控制系统。仿真实验结果表明该系统获得了近似圆形的定子磁链,在转速与转矩变化时均能准确的估算出电机转速,具有良好的动、静态性能。
A direct torque control system of permanent magnet synchronous motor（PMSM）with a method of speed estimation based on model reference adaptive system（MRAS）is presented.In this system, flux model of PMSM is regarded as reference model while estimated stator flux model is regarded as adjustable model.The motor speed and stator resistance are estimated by the designed adaptive laws.The direct torque control system of permanent magnet synchronous is constructed with the forward and space vector modulation technology. Simulation experiment results demonstrate this system get the stator flux kink.age response curve nearly circular.And the stator speed can be estimated exactly while the speed and torque is changed.This system achieves a good dynamic and static performance.
出处
《电子世界》
2013年第2期37-39,共3页
Electronics World
作者简介
张双宏（1987-），男，硕士研究生，研究方向：DSP电机控制技术。
钱祥忠（1963-），男，教授，硕士生导师，研究方向：光电机一体化、电气传动及控制技术。
