永磁同步电机改进型鲁棒模型预测转矩控制

针对永磁同步电机传统模型预测转矩控制策略存在脉动大、抗干扰能力差、权重因子需要反复调试等缺点，提出了一种基于自抗扰控制器的改进型鲁棒模型预测转矩控制策略。首先，通过设计转速环自抗扰控制器，并引入一种连续且平滑的新型fal函数，进一步提高了自抗扰控制的控制性能。然后，设计了一种无权重系数的价值函数，优化系统控制性能的同时简化了设计过程，解决了权重因子调试的问题。最后，采用两步预测降低延时对控制系统的影响，提高了控制精度。仿真和实验结果表明，提出的改进型鲁棒模型预测转矩控制策略有效降低了系统脉动，提高了系统的控制性能和参数鲁棒性。

Improved robust model predictive torque control of a permanent magnet synchronous motor

There are shortcomings in the traditional model predictive torque control (MPTC) strategy of a permanent magnet synchronous motor, such as large pulsation, poor anti-interference ability and repeated debugging of weighting factors. Thus an improved robust MPTC strategy based on an active disturbance rejection controller (ADRC) is proposed. First, a speed loop ADRC controller is designed, and a continuous and smooth new fal function is introduced to further improve the control performance of the ADRC. Then, a value function without weight coefficient is designed to optimize system control performance while simplifying the design process and solving the problem of weight factor debugging. Finally, two-step prediction is used to reduce the influence of delay on the control system and improve the control accuracy. Simulation and experimental results show that the proposed improved robust MPTC strategy effectively reduces system pulsation and improves the control performance and parameter robustness of the system.