A Simplified Space Vector Based Current Controller For Any General N-level Converter

被引：0

作者：

Li, Jun ^{[1
]}

Zhou, Xiaohu ^{[1
]}

Liang, Zhigang ^{[1
]}

Bhattacharya, Subhashish ^{[1
]}

Huang, Alex Q. ^{[1
]}

机构：

[1] North Carolina State Univ, FREEDM Syst Ctr, Raleigh, NC 27695 USA

来源：

2010 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION | 2010年

基金：

美国国家科学基金会;

关键词：

Active NPC; current controller; mapping technique; multilevel converter; space vector; redundant switching state;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper proposes a simplified current controller for any general N-level converter based on space vector (SV) theory. Through the presented mapping technique between the subhexagon of the N-level converter and the hexagon of the two-level converter, the proper output voltage vector of the N-level converter can be identified to suppress harmonic current content in steady state and attain fast current response in transient state. Meanwhile, the redundant switching states of the voltage vectors can be used to reduce or balance the device power losses, and regulate floating capacitor voltages. The controller complexity is greatly reduced due to the use of very simple lookup tables, thus it can be easily extended to any general N-level converter. The proposed scheme is explained for a five-level active NPC converter and the simulation results are presented to prove its correctness.

引用

页码：2156 / 2163

页数：8

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