A Grid-Wide Comprehensive Evaluation Method of Power Quality Based on Complex Network Theory

被引：3

作者：

Xiang, Yang ^{[1
,2
]}

Lin, Yan ^{[3
]}

Zhang, Yan ^{[4
]}

Lan, Jinchen ^{[3
]}

Hao, Meimei ^{[4
]}

Wang, Lianhui ^{[4
]}

Wang, Jiang ^{[1
,2
]}

Qin, Liang ^{[1
,2
]}

机构：

[1] Hubei Key Lab Power Equipment & Syst Secur Integra, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Sch Elect Engn & Automat, Wuhan 430072, Peoples R China

[3] State Grid Fujian Elect Power Co Ltd, Elect Power Res Inst, Fuzhou 350007, Peoples R China

[4] State Grid Fujian Elect Power Co Ltd, Fuzhou 350007, Peoples R China

来源：

ENERGIES | 2024年 / 17卷 / 13期

关键词：

complex network theory; grid-wide power quality; improved GRA-ANP method; comprehensive weight; VIKOR method;

D O I：

10.3390/en17133193

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：

0807 ; 0820 ;

摘要：

To achieve a hierarchical and quantitative evaluation of grid-wide power quality in the distribution network, reflecting the overall power quality level of the distribution network, a comprehensive evaluation method for power quality in a grid-wide system based on complex network theory is proposed. Firstly, based on the propagation characteristics of power quality disturbances, a power quality evaluation index system is constructed. Secondly, to reflect the constraint effect of the local power quality level of nodes on the overall power quality level of the distribution system, corresponding indices such as improved node degree, improved node electrical betweenness, and node self-healing capability are proposed based on complex network theory, and the power quality influence degree of nodes is calculated. Then, the GRA-ANP (Grey Relational Analysis-Analytic Network Process) subjective weight calculation method is improved by introducing grey relational analysis to address the impact of differences in different decision-making results. Based on power quality monitoring data, the entropy weight method is used for objective weighting. To avoid the partiality of a single weight evaluation result, the game equilibrium algorithm is employed to calculate the comprehensive weight of each power quality index. Subsequently, considering the correlation and dependency among indices, the VIKOR (VIseKriterijumska Optimizacija I Kompromisno Resenje) method is used to obtain the power quality grade of each node. Combining this with the calculation of the power quality influence degree of nodes, the overall power quality grade of the distribution network is determined, achieving a hierarchical and quantitative evaluation of power quality in the entire distribution system. Finally, through a case study analysis of an improved 13-node distribution network, it is verified that the proposed method can fully extract data information and produce comprehensive and accurate power quality assessment results by comparing it with other methods. This provides strong support for the safe and stable operation of the distribution system and the subsequent optimization and management of power quality.

引用

页数：18

共 29 条

[1]

[Anonymous], 2020, Electric Machines and Control, V24, P137, DOI 10.15938/j.emc.2020.01.017

[2] Power Quality in DC Distribution Networks [J].

Barros, Julio ;

de Apraiz, Matilde ;

Diego, Ramon I. .

ENERGIES, 2019, 12 (05)

[3]

[程志友 Cheng Zhiyou], 2020, [电网技术, Power System Technology], V44, P1950

[4] LMMN-Based Adaptive Control for Power Quality Improvement of Grid Intertie Wind-PV System [J].

Chishti, Farheen ;

Murshid, Shadab ;

Singh, Bhim .

IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, 2019, 15 (09) :4900-4912

[5] The challenges of achieving a 100% renewable electricity system in the United States [J].

Denholm, Paul ;

Arent, Douglas J. ;

Baldwin, Samuel F. ;

Bilello, Daniel E. ;

Brinkman, Gregory L. ;

Cochran, Jaquelin M. ;

Cole, Wesley J. ;

Frew, Bethany ;

Gevorgian, Vahan ;

Heeter, Jenny ;

Hodge, Bri-Mathias S. ;

Kroposki, Benjamin ;

Mai, Trieu ;

O'Malley, Mark J. ;

Palmintier, Bryan ;

Steinberg, Daniel ;

Zhang, Yingchen .

JOULE, 2021, 5 (06) :1331-1352

[6] A unified index for power quality evaluation in distributed generation systems [J].

Elbasuony, Ghada S. ;

Aleem, Shady H. E. Abdel ;

Ibrahim, Ahmed M. ;

Sharaf, Adel M. .

ENERGY, 2018, 149 :607-622

[7]

[付学谦 Fu Xueqian], 2014, [中国电机工程学报, Proceedings of the Chinese Society of Electrical Engineering], V34, P4270

[8] The role of renewable energy in the global energy transformation [J].

Gielen, Dolf ;

Boshell, Francisco ;

Saygin, Deger ;

Bazilian, Morgan D. ;

Wagner, Nicholas ;

Gorini, Ricardo .

ENERGY STRATEGY REVIEWS, 2019, 24 :38-50

[9]

[贾学翠 Jia Xuecui], 2021, [控制工程, Control Engineering of China], V28, P2052

[10]

[姜云鹏 Jiang Yunpeng], 2022, [电工技术学报, Transactions of China Electrotechnical Society], V37, P1820

← 1 2 3 →