To improve the tracking performance of the current controllers of permanent-magnet synchronous motor (PMSM) drive systems that are subject to internal disturbances, such as parameter variations, a novel active-disturbance-rejection-based sliding-mode current control (ADR-SMCC) scheme for PMSM drives is proposed in this article. First, a fast-response SMCC is designed based on the upper bound of the internal disturbance. Then, an extended state observer (ESO) is designed to estimate the internal disturbance in real time without the need for an accurate mathematical model of the PMSM. The parameters of the ESO can be easily designed based on the desired bandwidth of the ESO. The estimated internal disturbance is then used to update the control law of the SMCC in real time. The resulting ADR-SMCC has improved steady-state and transient current tracking performance and enhanced robustness to internal disturbances. The stability of the closed-loop PMSM drive system with the ADR-SMCC is proven by the Lyapunov theory. The ADR-SMCC is validated by experimental results for a 200-W salient-pole PMSM drive system.

中文翻译：

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基于有源抗扰的永磁同步电机滑模电流控制

为了提高永磁同步电机 (PMSM) 驱动系统的电流控制器的跟踪性能，该系统受到内部干扰，例如参数变化，一种新型的基于有源抗扰的滑模电流控制 (ADR-SMCC) ) 本文提出了 PMSM 驱动方案。首先，基于内部扰动的上限设计了快速响应的 SMCC。然后，设计了扩展状态观测器 (ESO) 来实时估计内部扰动，而无需 PMSM 的精确数学模型。ESO 的参数可以根据 ESO 的所需带宽轻松设计。然后使用估计的内部扰动来实时更新 SMCC 的控制律。由此产生的 ADR-SMCC 提高了稳态和瞬态电流跟踪性能，并增强了对内部干扰的鲁棒性。Lyapunov 理论证明了具有 ADR-SMCC 的闭环 PMSM 驱动系统的稳定性。ADR-SMCC 已通过 200W 凸极 PMSM 驱动系统的实验结果验证。