基于伏秒再平衡的多电平最近空间矢量算法  

The Nearest Space Vector Algorithm Based on Generalized Volt-second Balance Under Multi-level Converter

作　　者：胡存刚[1] 魏中原[2] 

机构地区：[1]安徽大学,电气工程与自动化学院,安徽合肥230601 [2]合肥工业大学,电气与自动化工程学院,安徽合肥230009

出　　处：《电力电子技术》2015年第9期10-12,共3页Power Electronics

摘　　要：多电平变换器因具有低开关器件耐压需求、输出波形质量优秀等优势而得到广泛应用,多电平技术的相关研究使电平数的提高成为一个重要的发展方向,而电平数的提升亦导致控制算法复杂化。为了突破传统算法对电平数提升、开关频率提升的限制、避免对控制系统资源的大量占用以及窄脉冲的形成,在对传统多电平空间矢量算法进行分析的基础上,提出了一种基于伏秒再平衡的最近空间矢量算法,并重点分析了此算法在三电平下的实现方式。最后通过仿真与实验验证了算法的可行性。Because of the advantage of lower voltage stress and better output quality, multi-level converter has been used in various fields.The number of multi-level is developing quickly to meet higher requirement, but this also makes the traditional algorithm much more difficult to work.The traditional space vector is analyzed,then a nearest space vector algorithm based on generalized volt-second balance is proposed to simplify the traditional algorithm, and the detailed process of the nearest space vector algorithm is given.The feasibility of the novel algorithm is proved by simulation and experiment.

关 键 词：多电平变换器 伏秒再平衡 最近空间矢量 

分 类 号：TM46[电气工程—电器]