基于VMV的三电平逆变器中点电位平衡控制研究  

Study on neutral point potential balance control of three-level inverter based on virtual medium-vector

作　　者：陈淼[1] 苏朝葵 彭新 欧阳晖[1] Chen Miao;Su Zhaokui;Peng Xin;Ouyang Hui(Wuhan Second Ship Design and Research Institute,Wuhan 430064;State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment,China Nuclear Power Engineering Co.,Ltd.,Shenzhen 518172)

机构地区：[1]武汉第二船舶设计研究所,武汉430064 [2]中广核工程有限公司核电安全监控技术与装备国家重点实验室,深圳518172

出　　处：《船电技术》2022年第12期42-45,49,共5页Marine Electric & Electronic Engineering

摘　　要：本文从空间矢量和中点电流影响的角度分析了二极管箝位型三电平逆变器中点电位不平衡的原因,比较研究了两种中点电位平衡控制方法,并提出了一种基于虚拟中矢量的中点电位平衡控制方法,仿真和实验结果均证明这种方法的有效性。In this paper,the causes of neutral point potential imbalance in neutral point clamped three-level inverter are analyzed from the perspective of space vector and neutral current.Two neutral point potential balance control methods are compared and studied,furthermore another neutral point potential balance control method based on virtual medium vector(VMV)is proposed.The simulation and experimental results prove the effectiveness of this method.

关 键 词：三电平逆变器 空间矢量调制 中点电位控制 虚拟中矢量 

分 类 号：TM464[电气工程—电器]