A three-level neutral-point-clamped inverter with flying-capacitor auxiliary legs

Xiangjun Zeng; Xiao Zhang; Yongbing Yang; Fa Chen; Xu Yang

doi:10.7500/AEPS20130625010

A three-level neutral-point-clamped inverter with flying-capacitor auxiliary legs

Xiangjun Zeng
, Xiao Zhang
, Yongbing Yang
, Fa Chen
, Xu Yang

电气工程学院

Xi'an Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

1 引用（Scopus）

摘要

A three-level flying-capacitor (four-leg) neutral-point-clamped (3L-FC-NPC) inverter is proposed for a large offshore wind power conversion system with light high voltage direct current (HVDC) transmission. The fourth flying-capacitor (FC) leg is added to eliminate mid-point voltage imbalance of the DC link including DC drift and low-frequency voltage fluctuation. The principle of the added FC leg is discussed first. Then three different voltage closed-loop control methods are proposed and compared. Finally, simulation and experiment show the correctness of modeling and analysis.

源语言	英语
页（从-至）	84-90
页数	7
期刊	Dianli Xitong Zidonghua/Automation of Electric Power Systems
期	8
DOI	https://doi.org/10.7500/AEPS20130625010
出版状态	已出版 - 25 4月 2014

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title = "A three-level neutral-point-clamped inverter with flying-capacitor auxiliary legs",

abstract = "A three-level flying-capacitor (four-leg) neutral-point-clamped (3L-FC-NPC) inverter is proposed for a large offshore wind power conversion system with light high voltage direct current (HVDC) transmission. The fourth flying-capacitor (FC) leg is added to eliminate mid-point voltage imbalance of the DC link including DC drift and low-frequency voltage fluctuation. The principle of the added FC leg is discussed first. Then three different voltage closed-loop control methods are proposed and compared. Finally, simulation and experiment show the correctness of modeling and analysis.",

keywords = "Flying-capacitor auxiliary leg, Light HVDC, Neutral-point balance control, Permanent magnet synchrony generator (PMSG), Three-level neutral-point-clamped (3L-NPC) inverter",

author = "Xiangjun Zeng and Xiao Zhang and Yongbing Yang and Fa Chen and Xu Yang",

note = "Publisher Copyright: {\textcopyright} 2014 State Grid Electric Power Research Institute Press",

year = "2014",

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T1 - A three-level neutral-point-clamped inverter with flying-capacitor auxiliary legs

AU - Zeng, Xiangjun

AU - Zhang, Xiao

AU - Yang, Yongbing

AU - Chen, Fa

AU - Yang, Xu

PY - 2014/4/25

Y1 - 2014/4/25

N2 - A three-level flying-capacitor (four-leg) neutral-point-clamped (3L-FC-NPC) inverter is proposed for a large offshore wind power conversion system with light high voltage direct current (HVDC) transmission. The fourth flying-capacitor (FC) leg is added to eliminate mid-point voltage imbalance of the DC link including DC drift and low-frequency voltage fluctuation. The principle of the added FC leg is discussed first. Then three different voltage closed-loop control methods are proposed and compared. Finally, simulation and experiment show the correctness of modeling and analysis.

AB - A three-level flying-capacitor (four-leg) neutral-point-clamped (3L-FC-NPC) inverter is proposed for a large offshore wind power conversion system with light high voltage direct current (HVDC) transmission. The fourth flying-capacitor (FC) leg is added to eliminate mid-point voltage imbalance of the DC link including DC drift and low-frequency voltage fluctuation. The principle of the added FC leg is discussed first. Then three different voltage closed-loop control methods are proposed and compared. Finally, simulation and experiment show the correctness of modeling and analysis.

KW - Flying-capacitor auxiliary leg

KW - Light HVDC

KW - Neutral-point balance control

KW - Permanent magnet synchrony generator (PMSG)

KW - Three-level neutral-point-clamped (3L-NPC) inverter

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M3 - 文章

AN - SCOPUS:84899808033

SN - 1000-1026

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JO - Dianli Xitong Zidonghua/Automation of Electric Power Systems

JF - Dianli Xitong Zidonghua/Automation of Electric Power Systems

IS - 8

ER -

A three-level neutral-point-clamped inverter with flying-capacitor auxiliary legs

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