Monotone control characteristics of dynamic voltage in power system

被引：0

作者：

Zhang Q. ^{[1
]}

Chen M. ^{[1
]}

Hao W. ^{[1
]}

Li Z. ^{[1
]}

Gan D. ^{[1
]}

Fan X. ^{[2
]}

机构：

[1] College of Electrical Engineering, Zhejiang University, Hangzhou

[2] Power Dispatching Control Center of Guizhou Power Grid Co., Ltd., Guiyang

来源：

Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2022年 / 42卷 / 06期

关键词：

Dynamic voltage; Electric power systems; Fault recovery; Low voltage load shedding; Monotone control; Prevention control;

D O I：

10.16081/j.epae.202203026

中图分类号：

学科分类号：

摘要：

The connection of high proportion of renewable energy and power electronic equipments makes the current power grid more sensitive to the change of dynamic voltage. The monotone control system theory is applied to the dynamic voltage problem, the determinant condition for input-output monotone is proposed, and it is point out that the monotone control characteristics is existed in dynamic voltage process. With the help of this theory, the monotone characteristics between low voltage load shedding control and dynamic voltage in different scale AC systems are demonstrated, which is verified in single system and regional power grid. For the power system connected with renewable energy, its dynamic voltage model during fault recovery period is simplified. On the basis of demonstrating its monotone control characteristics, the potential repeated low voltage ride through problem is predicted, and the problem is simulated in an actual sending end power grid with renewable energies, which verifies the effectiveness of the proposed improvement strategy. © 2022, Electric Power Automation Equipment Press. All right reserved.

引用

页码：161 / 169

页数：8

共 20 条

[1] LIU Wei, ZHAO Yong, SU Yinsheng, Et al., Review on configuration and setting methods of under voltage load shedding of power systems, Southern Power System Technology, 9, 2, pp. 36-43, (2015)
[2] CUI Xiaodan, WU Jialong, LEI Ming, Et al., Discussion on inducement and fault chain search technology of cascading fai-lure in power system with high penetration of renewable energy, Electric Power Automation Equipment, 41, 7, pp. 135-143, (2021)
[3] QIU Wei, HE Jingbo, YU Zhao, Et al., Transient voltage stability analysis of Hunan Power Grid with infeed UHVDC, Electric Power Automation Equipment, 39, 10, pp. 168-173, (2019)
[4] CHEN Lei, MIN Yong, Transient stability analysis of power sys-tems by direct method considering transient voltage dip, Automation of Electric Power Systems, 30, 21, pp. 6-10, (2006)
[5] ZHU Lingzhi, ZHOU Shuangxi, Study on power flow arithmetic for voltage stability analysis, Automation of Electric Po-wer Systems, 24, 5, pp. 1-4, (2000)
[6] XU Wei, LI Qun, YANG Junjun, Et al., Multi-objective optimization method for emergency load shedding based on comprehensive contribution index, Electric Power Automation Equip-ment, 38, 8, pp. 189-194, (2018)
[7] LAUFENBERG M J, PAI M A., A new approach to dynamic security assessment using trajectory sensitivities, IEEE Tran-sactions on Power Systems, 13, 3, pp. 953-958, (1998)
[8] HISKENS I A, ALSEDDIQUI J., Sensitivity, approximation, and uncertainty in power system dynamic simulation, IEEE Transactions on Power Systems, 21, 4, pp. 1808-1820, (2006)
[9] TONG Lixi, FANG Wanliang, Dynamic VAR planning method for mitigating fault-induced delayed voltage recovery problems, Shaanxi Electric Power, 40, 8, pp. 10-15, (2012)
[10] LI Shun, LIAO Qingfen, LIU Dichen, Et al., Adaptive coordinated low frequency load shedding strategy considering voltage stability, Electric Power Automation Equipment, 37, 12, pp. 157-163, (2017)

← 1 2 →