共母线OW-PMSM驱动系统改进SVPWM算法研究  

Research on Improved SVPWM Algorithm for Common Bus OW-PMSM Drive System

作　　者：王恒[1] WANG Heng(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《软件导刊》2022年第5期124-129,共6页Software Guide

摘　　要：为了提高共母线开绕组永磁同步电机(OW-PMSM)驱动系统母线电压利用率,且减小系统中存在的零序电流,提出一种改进的电压空间矢量脉冲宽度调制(SVPWM)算法。通过选择新的基本电压空间矢量使得双逆变器系统线性调制区最大化,同时在调制过程中通过重新分配零电压矢量的作用时间抑制零序电流。最后,基于MATLAB/Simulink环境搭建共母线OW-PMSM驱动控制系统仿真。仿真结果表明,改进SVPWM算法母线电压利用率更高,且OW-PMSM相电流中零序电流减小3A,3次谐波含量减少51.47%。In order to improve the utilization of the bus voltage of the common-bus open-winding permanent magnet synchronous motor(OW PMSM)drive system and reduce the zero-sequence current in the system,an improved voltage space vector pulse width modulation(SVPWM)algorithm was proposed.By selecting a new basic voltage space vector,the linear modulation area of the dual inverter system is maximized,and at the same time,the zero-voltage vector is redistributed during the modulation process to suppress the zero-sequence current.Finally,a common bus OW-PMSM drive control system simulation is built based on MATLAB/Simulink environment.The simulation results show that the improved SVPWM algorithm has a higher utilization rate of the bus voltage,and the zero sequence current in the OW-PMSM phase current is reduced by 3A,and the third harmonic content is reduced by 51.47%.

关 键 词：开绕组永磁同步电机 电压利用率 零序电流 SVPWM SIMULINK 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]