The predictive current control (PCC) method is based on nominal parameters to predict and control the current of permanent magnet synchronous motors (PMSM). However, there may be mismatches between actual parameters and their nominal values due to material aging, temperature rise, or magnetic saturation. In this paper, the effects of parameter mismatches on system stability and current tracking errors are analyzed theoretically and verified. Furthermore, based on current errors, a robust PCC scheme with parallel compensation terms onto the conventional deadbeat predictive current controller is proposed. Since there is no change introduced into the original controller, the proposed robust PCC method can be easily implemented. Finally, feasibility and validity of the proposed robust PCC scheme against multi-parameter mismatches are confirmed by experiments, in addition, the experimental results show that system steady-state robustness is improved with no cost to transient performance.

中文翻译：

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具有并行补偿项的鲁棒预测电流控制以防止 PMSM 的多参数失配

预测电流控制 (PCC) 方法基于标称参数来预测和控制永磁同步电机 (PMSM) 的电流。但是，由于材料老化、温升或磁饱和，实际参数与其标称值之间可能存在不匹配。本文从理论上分析并验证了参数失配对系统稳定性和电流跟踪误差的影响。此外，基于电流误差，提出了一种在传统无差拍预测电流控制器上具有并行补偿项的鲁棒 PCC 方案。由于没有对原始控制器进行更改，因此可以轻松实现所提出的鲁棒 PCC 方法。最后，