摘要
电流预测控制是交流电机控制领域广泛应用的一种优化控制方法。从永磁同步电机在同步旋转坐标系中的数学模型出发,描述了离散化的电流预测控制方法来提高电机控制系统电流环的性能。针对控制延时导致定子电流在参考值附近振荡并增加电流纹波和转矩脉动的问题,采用一拍延时补偿提高了控制系统的性能,仿真验证了所描述方法的有效性和可行性。
The predictive current control is a kind of optimal control method extensively applied in the area of AC motor control field.Starting from the mathematical model of permanent magnet synchronous motor in synchronous rotating coordinate system,this paper described the discretized predictive current control method to improve the performance of motor control system current loop.In allusion to the problem that the control delay will lead to the current vibration nearby the reference value and the increase of current ripple and torque pulsation,One step delay compensation was adopted to improve the performance of control system.The simulation verifies the effectiveness and feasibility of the method described above.
作者
裴进
PEI Jin(Huadian Hubei Power Generation Co.,Ltd,Huangshi Thermal Power Branch,Huangshi 435000,China)
出处
《电工电气》
2019年第5期23-26,48,共5页
Electrotechnics Electric
关键词
永磁同步电机
电流控制
预测控制
一拍延时补偿
permanent magnet synchronous motor
current control
predictive control
one step delay compensation
