三电平中点电压平衡PWM控制策略研究  

Analysis of Neutral-Point Voltage Balancing Problem in Three-Level Neutral-Point-Clamped Inverters with SVPWM Modulation

作　　者：阮会[1] 

机构地区：[1]中国船舶重工集团公司第七一二研究所,武汉430064

出　　处：《船电技术》2009年第5期43-46,共4页Marine Electric & Electronic Engineering

摘　　要：多电平PWM控制技术是多电平变换器研究的核心内容之一。基于传统两电平PWM技术的研究经验,经过近十几年的发展,多电平PWM控制技术已形成了几类不同的实现方法,同时新的控制方法还在涌现。但一直以来多电平的电压平衡控制就是研究的热点。本文提出了两种基于三电平SVPWM的中点电压平衡控制方法,详细介绍了每种算法的具体操作过程,并给出了改进的思路。The PWM control is key technology in a multilevel converter. Multilevel~ PWM control technology has developed different ways to accomplish on the basis of traditional two level PWM methods during past decade years. The neutral-point-balance control scheme is always the hot issues; it presents two kinds of control algorithms to fulfill this system, introduces concrete fulfillment process of each kind of the algorithm, and presents a method to improve it.

关 键 词：三电平逆变器 中点电压平衡 空间电压矢量PWM 

分 类 号：TM354[电气工程—电机]