永磁同步电机双矢量无权重模型预测转矩控制  

Double-Vector-Based Model Predictive Torque Control of Permanent Magnet Synchronous Motor Without Weighting Factor

作　　者：陈商玥 高强 陈愚 CHEN Shangyue;GAO Qiang;CHEN Yu(School of Electrical and Electronic Engineering,Tianjin University of Technology,Tianjin 300380,China;State Grid Tianjin Chengxi Electric Power Supply Company,Tianjin 300110,China;School of Intelligent Manufacturing,Tianjin Sino-German University of Applied Technology,Tianjin 300350,China)

机构地区：[1]天津理工大学电气电子工程学院,天津300380 [2]国网天津市电力公司城西供电分公司,天津300110 [3]天津中德应用技术大学智能制造学院,天津300350

出　　处：《微特电机》2022年第11期46-51,共6页Small & Special Electrical Machines

摘　　要：传统占空比预测转矩控制的目标函数包含一个权重系数,权重系数的选取繁琐且耗时。为了消除权重系数并提高稳态性能,提出一种双矢量无权重预测转矩控制方法。该方法将转矩误差和磁链误差转换到α,β坐标系下,构建以备选矢量到转矩误差直线和磁链误差圆的距离之和的目标函数,以消除权重系数。引入占空比控制,进一步减小转矩和磁链脉动。仿真与实验结果表明,该方法具有良好的控制性能。The cost function of traditional predictive torque control based on duty control contains a weighting factor,and the selection of weighting factor was cumbersome and time-consuming.In order to eliminate the weighting factor and improve the steady-state performance,a double vector predictive torque control without weighting factor was proposed.Torque error and flux error were converted toα,βin the coordinate system,and the cost function was constructed based on the sum of the distances from the candidate vector to the torque error line and the flux error circle so as to eliminate the weighting factor.On the basis,duty cycle control was introduced to further reduce torque and flux ripple.Simulation results show that the proposed method has good control performance.

关 键 词：永磁同步电机 模型预测控制 模型预测转矩控制 无权重 双矢量 

分 类 号：TM351[电气工程—电机]