Individual Voltage Balancing Strategy for PWM Cascaded H-Bridge Converter-Based STATCOM
Individual Voltage Balancing Strategy for PWM Cascaded H-Bridge Converter-Based STATCOM
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DOI：
10.1109/tie.2007.906127
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发表时间：
2008-01
影响因子：
7.7
通讯作者：
J. Barrena;L. Marroyo;M. R. Vidal;José Ramón Torrealday Apraiz
中科院分区：
文献类型：
--
作者：
J. Barrena;L. Marroyo;M. R. Vidal;José Ramón Torrealday Apraiz
本文提出了一种基于级联h桥变换器的静态补偿器控制新方法。这些变换器传统上是在基频下换向的，但是功率半导体的发展使得这些器件的开关频率和额定功率增加，从而允许使用脉宽调制技术。本文主要针对直流母线电压平衡问题，提出了一种新的控制技术（单独电压平衡策略），解决了直流母线电压平衡问题，使输出的无功功率在变流器各h桥之间均匀分布。
This paper presents a new control method for cascaded connected H-bridge converter-based static compensators. These converters have classically been commutated at fundamental line frequencies, but the evolution of power semiconductors has allowed the increase of switching frequencies and power ratings of these devices, permitting the use of pulsewidth modulation techniques. This paper mainly focuses on dc-bus voltage balancing problems and proposes a new control technique (individual voltage balancing strategy), which solves these balancing problems, maintaining the delivered reactive power equally distributed among all the H-bridges of the converter.