Research on a location method for complex voltage sag sources based on random matrix theory

doi:10.1155/2020/7870461

	Research on a location method for complex voltage sag sources based on random matrix theory
	Wu LZ(吴丽珍)
	2020-05-26
发表期刊	Mathematical problems in Engineering
ISSN	1024-123X
卷号	2020 期号:7870461 页码:1-12
摘要	The precise location of voltage sag sources plays an important role in formulating a voltage sag governance plan and clarifying the responsibility for the accident. The traditional location method of voltage sag sources is difficult to establish a precise mathematical model and locate the complex voltage sag sources accurately in the complex distribution network. In order to solve these problems, a location method for complex voltage sag sources based on random matrix theory is proposed in this paper. Firstly, the augmented matrix is constructed based on the influence factor data and the operation state data of the distribution network as the data source matrix, and the statistical characteristics of each data are analyzed by using the random matrix theory to determine the suspicious area of voltage sag source. Then, the disturbance signal of each node in the suspicious area of voltage sag source is analyzed by using the atomic algorithm and disturbance active power method, and it can determine the location of each disturbance source in the complex voltage sag event and the cause of voltage sag at each node. Compared with the existing model-based methods, the proposed method in this paper is a data-driven approach, which does not need the physical model and topology information. Furthermore, it can reduce the amount of data and improve the analysis efficiency on the basis of determining the suspicious area of the voltage sag source. Finally, the examples are given to show that the proposed method can accurately locate the disturbance sources in complex voltage sag events.
DOI	10.1155/2020/7870461
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Mathematics
WOS类目	Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
WOS记录号	WOS:000540578900010
出版者	HINDAWI LTD
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/103313
专题	电气工程与信息工程学院
通讯作者	Wu LZ(吴丽珍)
作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Wu LZ. Research on a location method for complex voltage sag sources based on random matrix theory[J]. Mathematical problems in Engineering,2020,2020(7870461):1-12.
APA	Wu LZ.(2020).Research on a location method for complex voltage sag sources based on random matrix theory.Mathematical problems in Engineering,2020(7870461),1-12.
MLA	Wu LZ."Research on a location method for complex voltage sag sources based on random matrix theory".Mathematical problems in Engineering 2020.7870461(2020):1-12.

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