基于广义双矢量的PMSM模型预测电流控制  

Generalized Two-vector-based Model Predictive Current Control of Permanent Magnet Synchronous Motor Drives

作　　者：张保程 徐艳平[1] 周钦[1] ZHANG Baocheng;XU Yanping;ZHOU Qin(Department of Electrical Engineering,Xi’an University of Technology,Xi’an 710048,Shaanxi,China)

机构地区：[1]西安理工大学电气工程系,陕西西安710048

出　　处：《电气传动》2017年第3期17-20,共4页Electric Drive

摘　　要：为了减小基于占空比的模型预测电流控制(MPCC)策略中的电流波动,通过深入分析占空比MPCC策略的电压矢量选择过程,提出了一种基于广义双矢量的永磁同步电机MPCC策略,该控制策略在每个采样周期中可选择任意2个电压矢量,并且将这2个电压矢量的作用时间加入价值函数中进行优化,保证了所选电压矢量的全局最优。实验结果证明,与占空比MPCC策略相比,所提出控制策略明显减小了电流波动,提高了系统稳态性能。In order to decrease the current ripples of duty cycle model predictive current control(MPCC)strategy,based on in-depth analysis of vector selection in duty cycle MPCC strategy,a generalized two-vector basedmodel predictive current control strategy for permanent magnet synchronous motor was proposed by expanding therange of voltage vector selection to two arbitrary voltage-vectors and evaluating the voltage-vector selection and theirdurations simultaneously in cost function,global optimization could be ensured.Experimental results prove that,compared to duty cycle MPCC,the current ripples is decreased apparently and the steady-state performance isimproved in the proposed strategy.

关 键 词：双矢量控制 模型预测控制(MPC) 电流控制 永磁同步电机 

分 类 号：TM351[电气工程—电机]