This article proposes a novel predefined-time sliding mode predictive current control (PDOSMPCC+ HDO) technique to simultaneously enhance disturbance rejection and dynamic response in surface-mounted permanent magnet synchronous motor (SPMSM) drives. Specifically, a composite disturbance predictive model incorporating both slowly varying disturbance and sixth current harmonic disturbance is developed. A predefined-time reaching law (PTRL) and corresponding sliding mode disturbance observer are proposed to effectively estimate the slowly varying disturbance, while the sixth harmonic disturbance is estimated using a frequency-domain harmonic disturbance observer with a specially designed filter. A PTRL-based reference trajectory is defined for the PDO-SMPCC+HDO cost function to adjust the current approach trajectory. Finally, an integrated predictive control scheme is developed by minimizing the cost function. Experimental results on an SPMSM test bench verify the superior disturbance suppression and tracking capabilities of the proposed strategy.

中文翻译：

---

用于 SPMSM 驱动器中的干扰抑制和动态响应改进的预定义时间滑模预测电流控制


本文提出了一种新颖的预定义时间滑模预测电流控制 (PDOSMPCC+ HDO) 技术，可同时增强表面安装永磁同步电机 (SPMSM) 驱动器的抗扰性和动态响应。具体来说，开发了一种结合缓慢变化扰动和六次电流谐波扰动的复合扰动预测模型。提出了预定义时间到达律（PTRL）和相应的滑模扰动观测器来有效估计缓慢变化的扰动，同时使用带有专门设计的滤波器的频域谐波扰动观测器来估计六次谐波扰动。为PDO-SMPCC+HDO成本函数定义基于PTRL的参考轨迹来调整当前进场轨迹。最后，通过最小化成本函数来开发集成预测控制方案。 SPMSM测试台上的实验结果验证了该策略优越的扰动抑制和跟踪能力。