The Impact of X/R ratio on Voltage Stability in a Distribution Network Penetrated by Wind Farms

被引：0
|
作者：
Alizadeh, Seyed Morteza [1 ]
Ozansoy, Cagil [1 ]
Alpcan, Tansu [2 ]
机构：
[1] Victoria Univ, Coll Engn & Sci, Melbourne, Vic, Australia
[2] Univ Melbourne, Dept Elect & Elect Engn EEE, Melbourne, Vic 3010, Australia
来源：
PROCEEDINGS OF THE 2016 AUSTRALASIAN UNIVERSITIES POWER ENGINEERING CONFERENCE (AUPEC) | 2016年
关键词：
Distribution systems; Wind power plants; X/R ratio; Voltage stability; Reactive power control;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Existing technologies used for voltage regulation through reactive power control are mainly based on the reactance of the line while the line resistance is ignored. Hence, these solutions are appropriate for transmission networks where X/R ratio is high. However, this assumption does not hold for distribution systems as the value of line reactance is low, resulting in low X/R ratios. This paper investigates the effect of X/R ratio on reactive power requirements, voltage profile and step-voltage variation at the Point of Common Coupling (PCC) of a wind farm connected to a distribution system. The test distribution system has been modelled using different IEEE standard distribution systems. The results show that an increase in the X/R ratio increases the reactive power requirement and lowers the voltage at the PCC. However, lower X/R ratios increase the step-voltage variations as a function of wind power and adversely impact the power quality of the system.
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页数：6
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