中文摘要：

采用常规比例-积分-谐振（PI-RES）电流控制器可抑制永磁同步电机（PMSM）相电流谐波.然而,电机运行于高输出频率/采样频率工况时,系统受数字控制器一个采样周期延时的影响,将出现电流震荡现象.为了解决上述问题,提出一种预测比例-积分-谐振（PPI-RES）电流控制策略.该方法分别利用电流误差微分模型和积分模型预测扰动电压和误差电流,实现对输入延时的有效补偿.仿真结果验证了所提出电流控制策略的有效性.

英文摘要：

The current harmonics of the permanent magnet synchronous motor（PMSM） can be rejected by using the conventional proportional-integral-resonant（PI-RES） current controller. However, when PMSM running under high ratio of the output frequency over the sampling frequency condition, the phase currents will oscillate due to the one sample time input delay of the digital controller. To address this issue, the predictive proportional-integral-resonant（PPI-RES） current control strategy is proposed. The proposed algorithm can compensate the input delay effectively by predicting the disturbance voltages and the current errors based on the current errors differential model and integral model respectively. The simulation results show the effectiveness of the proposed algorithm.