Loop-closing voltage fluctuation suppression method of distribution network based on active control of distributed generators

被引：0
|
作者：
Ouyang J. [1 ]
Chen J. [1 ]
Yuan Y. [1 ,2 ]
Xu S. [3 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing
[2] Dongguan Power Supply Bureau of Guangdong Power Grid Corporation, Dongguan
[3] Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2024年 / 44卷 / 01期
关键词：
active distribution network; distributed generator; fault restoration; power control; voltage fluctuation;
D O I：
10.16081/j.epae.202303001
中图分类号：
学科分类号：
摘要：
The loop-closing operation of the distribution network may lead to node voltage fluctuation or even limit crossing, which may not only affect the normal operation of the load, but also threaten the safety of distributed generator (DG). Aiming at this problem, a new idea for suppressing loop-closing voltage fluctuation based on DG active control in the distribution network is proposed. By analyzing the generation mechanism and influencing factors of voltage fluctuations in the process of loop closing, the control requirements for suppressing loop-closing voltage fluctuation is quantified, and the feasible power range of DG that suppresses the loop-closing voltage fluctuations is constructed. By portraying the controllable power range of DG, the calculation method of control reference value of DG based on the intersection of feasible power range and controllable power range is proposed. The method of loop-closing voltage fluctuation suppression of distribution network based on active control of DG is proposed. The results of case study show that the proposed method can suppress the loop-closing voltage fluctuation of the fault restoration to the maximum extent, and effectively improve the safety and reliability of the fault restoration. © 2024 Electric Power Automation Equipment Press. All rights reserved.
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页码：49 / 56
页数：7
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