Control design of grid-connected three-phase inverters for voltage unbalance correction

被引：0

作者：

Meersman, Bart ^{[1
]}

Renders, Bert ^{[1
]}

Degroote, Lieven ^{[1
]}

Vandoorn, Tine ^{[1
]}

Vandevelde, Lieven ^{[1
]}

机构：

[1] Univ Ghent, Dept Elect Energy Syst & Automat EESA, Energy Lab EELAB, B-9000 Ghent, Belgium

来源：

UPEC: 2009 44TH INTERNATIONAL UNIVERSITIES POWER ENGINEERING CONFERENCE | 2009年

关键词：

three-phase voltage-source inverter (VSI); distributed generation; neutral-point-clamped VSI; resistive behaviour; voltage unbalance; NEUTRAL CONDUCTOR CURRENT;

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：

The increasing presence of single-phase distributed generators and unbalanced loads in the electric power system may lead to unbalance of the three-phase voltages, resulting in increased losses and heating effects. A type of voltage unbalance with a high probability in (low voltage) distribution networks is the unequal voltage magnitudes at the fundamental system frequency (under- and over-voltages). To decrease this voltage unbalance problem three-phase four-wire inverter-connected distribution units can be used. This paper proposes a control method for a three-phase four-wire inverter for Distributed Generation (DG) units which has a resistive behaviour for disturbances. The effect of the proposed control method on the voltage unbalance in the distribution network is simulated and is compared to the classical sinusoidal control strategy. The simulation results show the positive effect of the proposed control strategy on voltage unbalance.

引用

页码：591 / 595

页数：5

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