Feed-Forward Space Vector Modulation for Single-Phase Multilevel Cascaded Converters With Any DC Voltage Ratio

被引：111

作者：

Leon, Jose I. ^{[1
]}

Vazquez, Sergio ^{[1
]}

Watson, Alan J. ^{[2
]}

Franquelo, Leopoldo G. ^{[1
]}

Wheeler, Patrick W. ^{[2
]}

Carrasco, Juan M. ^{[1
]}

机构：

[1] Univ Seville, Dept Elect Engn, Seville 41092, Spain

[2] Univ Nottingham, Sch Elect & Elect Engn, Nottingham NG7 2RD, England

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2009年 / 56卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Modulation; multilevel systems; voltage control; MULTICARRIER PWM; INVERTERS; ALGORITHM; DESIGN;

D O I：

10.1109/TIE.2008.926777

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Modulation techniques for multilevel converters can create distorted output voltages and currents if the dc-link voltages are unbalanced. This situation can be avoided if the instantaneous dc voltage error is not taken into account in the modulation process. This paper proposes a feed-forward space vector modulation method for a single-phase multilevel cascade converter. Using this modulation technique, the modulated output voltage of the power converter always generates the reference determined by the controller, even in worst case voltage unbalance conditions. In addition, the possibility of optimizing the dc voltage ratio between the H-bridges of the power converter is introduced. Experimental results from a 5-kVA prototype are presented in order to validate the proposed modulation technique.

引用

页码：315 / 325

页数：11

共 26 条

[1] Modeling and design of a neutral-point voltage regulator for a three-level diode-clamped inverter using multiple-carrier modulation [J].