Calculation model of 10 kV distribution network loss considering power quality impact and its experimental verification

被引：0
|
作者：
Li Q. [1 ]
Liu S. [1 ]
Wen J. [2 ]
Wang Y. [1 ]
Dai S. [1 ]
Tan T. [2 ]
Liu K. [2 ]
机构：
[1] Electric Power Research Institute of State Grid Henan Electric Power Company, Zhengzhou
[2] School of Electrical Engineering and Automation, Wuhan University, Wuhan
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2022年 / 42卷 / 01期
关键词：
10 kV distribution network loss; Harmonics; Power quality; Three-phase current unbalance; Voltage deviation;
D O I：
10.16081/j.epae.202108035
中图分类号：
学科分类号：
摘要：
With the continuous development of smart power grid, power quality disturbance is increasing day by day. Therefore, it is of great significance to explore the power distribution network loss calculation model considering power quality factors for energy conservation and loss reduction of power system. The calculation models of 10 kV distribution network loss under the influence of three common power quality disturbances, i.e. harmonic, three-phase current unbalance and voltage deviation, are respectively given. Then simultaneously considering multiple power quality disturbances, the evaluation method of 10 kV distribution network loss is proposed and the corresponding calculation model is established, which improves the theoretical calculation accuracy of 10 kV distribution network loss. The comprehensive evaluation process is divided into fixed loss and variable loss evaluation. In the fixed loss evaluation, the influence of voltage deviation on the fixed loss of the transformer is mainly considered. In the variable loss evaluation, the above three power quality disturbances are decoupled and evaluated, and then the comprehesive additional loss rate of variable loss of 10 kV distribution network is comprehensively estimated. Finally, the correctness of the proposed model and the corresponding model are verified through experiments. © 2022, Electric Power Automation Equipment Press. All right reserved.
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页码：212 / 220
页数：8
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