CAJ | 학술논문

在同步旋转轴系下,提出了一种基于无差拍算法的永磁同步电机离散化电流预测控制方法,来提高电机电流环的性能。基于电机数学模型,电流控制器根据电流给定和反馈值计算得到电压矢量,通过空间矢量脉宽调制模块将电压矢量转换为开关信号。引入了鲁棒电流预测算法,来减小预测模型参数误差对系统稳定性的影响。仿真和实验结果表明,与传统矢量控制相比,永磁同步电机电流预测控制算法有效地提高了伺服系统电流环的动态性能和稳态精度。
재동보선전축계하,제출료일충기우무차박산법적영자동보전궤리산화전류예측공제방법,래제고전궤전류배적성능。기우전궤수학모형,전류공제기근거전류급정화반궤치계산득도전압시량,통과공간시량맥관조제모괴장전압시량전환위개관신호。인입료로봉전류예측산법,래감소예측모형삼수오차대계통은정성적영향。방진화실험결과표명,여전통시량공제상비,영자동보전궤전류예측공제산법유효지제고료사복계통전류배적동태성능화은태정도。
This paper presented a discrete predictive current control scheme for permanent magnet synchronous motors（PMSM） based on the dead-beat algorithm in the synchronous frame to improve the performance of the current loop.Based on the mathematical model of PMSM,the current controller directly calculated the expected voltage vector according to the current reference and feedback values;then transformed the voltage vector into switch signals with space vector pulse width modulation model.The robust predictive current control was introduced to decrease the sensitivity of system stability caused by the model parameters error.Simulation and experiment results showed that the PMSM current predictive control scheme efficiently improved both the dynamic performance and the steady-state precision of the current loop.