无需大矢量三电平SVPWM在直接转矩控制系统中的应用  

Application of Three-Level SVPWM Without Large Vectors in Direct Torque Control System

作　　者：谭风雷 高世宇 龚陈龙 TAN Fenglei;GAO Shiyu;GONG Chenlong(EHV Branch Company,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211102,China)

机构地区：[1]国网江苏省电力有限公司超高压分公司,江苏南京211102

出　　处：《电器与能效管理技术》2022年第3期90-95,共6页Electrical & Energy Management Technology

基　　金：国网江苏省电力有限公司创新工作室项目(2020016L05)。

摘　　要：在传统三电平SVPWM空间矢量图的基础上,弃用6个大矢量,利用剩余3个零矢量、12个小矢量和6个中矢量将矢量空间重新划分成18个有效区域,矢量和分区减少,安排开关序列,提出无需大矢量三电平SVPWM调制方法。进一步应用到直接转矩控制系统中,经仿真分析,结果验证了所提方法的有效性和可行性。A method of three-level SVPWM without large vectors is proposed,which is able to reduce vectors and vector regions and simplify algorithm by using the remaining 3 zero vectors,12 small vectors and 6 medium vectors to re-divide the vector space into 18 effective regions with 6 large vectors eliminated.On the basis of studying the traditional three-level SVPWM diagram deeply,this method is obtained with reminding vectors for dividing sectors and arranging switch sequence with large vectors eliminated.It is applied in direct torque control system for simulation analysis,which verifies its feasibility and validity.

关 键 词：三电平 SVPWM 无需大矢量 直接转矩控制 

分 类 号：TM46[电气工程—电器]