基于占空比的模型预测电流控制

Model Predictive Current Control Based on Duty Cycle

随着工业化的不断进步,电机的应用领域越来越广泛,工业上对电机性能的要求也越来越高。模型预测控制是电机控制算法的一个热点,传统的模型预测控制存在转矩脉动大,空载电流谐波大的问题。针对以上问题,文章提出了占空比控制的模型预测控制,在一个控制周期内,有效电压矢量与零矢量同时输出,可以实现多个周期内的电流无差拍,并通过仿真软件进行仿真验证,有效改善了转矩脉动和空载时电流谐波大的问题。

With the continuous progress of industrialization, the application fields of motors are more and more extensive, and the requirements for motor performance in the industry are also getting higher and higher. Model predictive control is a hot spot in motor control algorithms.Traditional model predictive control has the problems of large torque ripple and large no-load current harmonics. In response to the above problems, A model predictive control of duty cycle control is proposed. In a control cycle, the effective voltage vector and the zero vector are output at the same time, which can realize the deadbeat current in multiple cycles, and the simulation software is used for simulation verification., Effectively improve the problem of torque ripple and large current harmonics at no-load.