Study on the Impact of Photovoltaic Penetration on Power System Static Voltage Stability

被引：0

作者：

Liu Y. ^{[1
]}

Yao L. ^{[1
]}

Liao S. ^{[1
]}

Xu J. ^{[1
]}

Sun Y. ^{[1
]}

Cheng F. ^{[1
]}

Cui W. ^{[2
]}

Li F. ^{[3
]}

机构：

[1] School of Electrical Engineering and Automation, Wuhan University, Hubei Province, Wuhan

[2] Electric Power Research Institute of Henan Electric Power Company, Henan Province, Zhengzhou

[3] China Electric Power Research Institute, Jiangsu Province, Nanjing

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2022年 / 42卷 / 15期

关键词：

effective reactive power reserve; influence mechanism; photovoltaic penetration; static voltage stability; voltage-active power sensitivity;

D O I：

10.13334/j.0258-8013.pcsee.210963

中图分类号：

学科分类号：

摘要：

As the reactive power adjustment range of renewable energy units is much smaller than that of synchronous generation units, it may weaken the system static voltage stability after a large number of synchronous generation units are gradually replaced by renewable energy units. Taking photovoltaic (PV) as an example, this paper discussed the impacts of photovoltaic penetration rate and its point of common coupling on the system static voltage stability. The relationship between the photovoltaic penetration and the reactive power reserve at the point of common coupling was established, and the analytical expressions between the static voltage stability and photovoltaic penetration rate in the single-machine and single load system were derived, so as to analyze the static voltage stability mechanism. Two quantitative indicators named reactive power support coefficient and voltage-active power sensitivity were proposed accordingly. The proposed reactive power support coefficient can reflect the impact degrees of different points of common coupling on the effective reactive power reserve of the system, and different penetrations on the static voltage stability; while the proposed voltage-active power sensitivity can reflect the impact of the increase in penetration on static voltage stability. The simulation studies carried out in both 3-machine 9-node system and 10-machine 39-node system show that the proposed indicators can correctly characterize the evolution trend of the static voltage stability of the system weak point with the change of penetration rate at different points of common coupling. Compared with the traditional indicators, the proposed indicators consider the actual reactive power adjustment range of PV, and can better highlight the changes of reactive power support capacity at the point of common coupling when the penetration rises. © 2022 Chin.Soc.for Elec.Eng.

引用

页码：5484 / 5496

页数：12

共 26 条

[1] WANG Ningbo, MA Ming, QIANG Tongbo, High-penetration new energy power system development：challenges, opportunities and countermeasures[J], Electric Power, 51, 1, pp. 29-35, (2018)
[2] ZHANG Hongguang, ZHANG Lizi, CHEN Shuyong, Studies on the transient behavior and dispatching strategy of power system integrated with large scale wind farms[J], Proceedings of the CSEE, 27, 31, pp. 45-51, (2007)
[3] LIU Dai, PANG Songling, System impacts analysis for interconnection of wind farm and power grid[J], Proceedings of the CSU-EPSA, 23, 3, pp. 156-160, (2011)
[4] ZHANG Jiyuan, HUANG Lei, SHU Jie, Impacts of distributed generations with high penetration level on voltage stability of power system[J], Advances in New and Renewable Energy, 4, 5, pp. 379-385, (2016)
[5] KHOSRAVI A, JAZAERI M, MOUSAVI S A．, Transient stability evaluation of power systems with large amounts of distributed generation[C], 45th International Universities Power Engineering Conference UPEC2010, (2010)
[6] MEEGAHAPOLA L, FLYNN D．, Impact on transient and frequency stability for a power system at very high wind penetration[C], IEEE PES General Meeting, pp. 1-8, (2010)
[7] YANG Shuo, WANG Weisheng, LIU Chun, Coordinative strategy of reactive power and voltage control for improving static voltage stability of wind power centralized system[J], Power System Technology, 38, 5, pp. 1250-1256, (2014)
[8] DU Xiao, ZHOU Lin, GUO Ke, Static voltage stability analysis of large-scale photovoltaic plants[J], Power System Technology, 39, 12, pp. 3427-3434, (2015)
[9] BEN-KILANI K, ELLEUCH M．, Structural analysis of voltage stability in power systems integrating wind power[J], IEEE Transactions on Power Systems, 28, 4, pp. 3785-3794, (2013)
[10] ZHANG Qian, LIAO Qingfen, TANG Fei, Steady state voltage stability assessment method of distribution network considering inter-connection of distributed generators[J], Automation of Electric Power Systems, 39, 15, pp. 42-48, (2015)

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