The influence of grid-connected three-phase inverters on voltage unbalance

被引：10

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, Elect Energy Lab EELAB, B-9000 Ghent, Belgium

来源：

IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010 | 2010年

关键词：

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

D O I：

10.1109/PES.2010.5589331

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：

080707 [能源环境工程]; 082001 [油气井工程];

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. To decrease this voltage unbalance problem three-phase four-wire inverter-connected distributed generation units may be used. In this paper, the influence of the control strategy of three-phase inverter-connected distributed generation (DG) units on voltage unbalance is studied. One of the control strategies is a damping control method for a three-phase four-wire inverter for DG units which behaves resistively towards voltage disturbances independently of the input power. The other control methods are the classical sinusoidal control strategy and the resistive control strategy. The simulation results show the positive effect of the damping control strategy on voltage unbalance.

引用

页数：9

共 21 条

[1]

Bollen M. H. J., 2002, IEEE Power Engineering Review, V22, P49, DOI 10.1109/MPER.2002.1045567

[2]

Analysis of the neutral conductor current in a three-phase supplied network with nonlinear single-phase loads [J].