Dimension Reduction Method for Online Transient Voltage Security Analysis of Power Grid

被引：0
|
作者：
Lin Y. [1 ]
Wang B. [1 ]
Ge H. [1 ]
Shan R. [2 ]
Sun H. [1 ]
Guo Q. [1 ]
机构：
[1] Department of Electrical Engineering, Tsinghua University, Beijing
[2] State Grid Henan Electric Power Company
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2021年 / 45卷 / 12期
关键词：
Dimension reduction; Dynamic voltage partition; Steady-state partition; Transient voltage security;
D O I：
10.7500/AEPS20200426005
中图分类号：
学科分类号：
摘要：
In recent years, with the development of renewable energy and the formation of AC/DC hybrid power grids in China, the transient voltage security problem of power systems has become more and more prominent. It is very necessary to conduct online transient voltage security analysis for large power grids. However, due to the dimensionality disaster of this problem, the online application is difficult. The key challenges are high-dimensional voltage time trajectories (time dimension), a large number of preconceived contingencies (fault dimension), and numerous nodes and reactive power devices (space dimension). The traditional reactive voltage partitioning method cannot settle the above challenges. Therefore, a dimension reduction method for transient voltage security analysis is proposed, including a quantitative evaluation method for transient voltage security based on high-dimensional voltage time trajectories, a representative severe contingency screening method for a large number of preconceived contingencies and a fault-dependent dynamic voltage partitioning method. These three key methods reduce the dimension of the original problem from the time, fault and space dimensions respectively. Simulation based on the IEEE 39-bus system and an actual power grid verifies the feasibility and effectiveness of the proposed method. © 2021 Automation of Electric Power Systems Press.
引用
收藏
页码：109 / 118
页数：9
相关论文
共 31 条
  • [1] SUN Hongbin, ZHANG Zhigang, LIU Yingshang, Et al., Autonomous-synergic voltage control for complicated power systems: key technologies and prospects, Power System Technology, 41, 12, pp. 3741-3749, (2017)
  • [2] SUN H B, GUO Q L, QI J J, Et al., Review of challenges and research opportunities for voltage control in smart grids, IEEE Transactions on Power Systems, 34, 4, pp. 2790-2801, (2019)
  • [3] GUO Qinglai, Study on hierarchical reactive power and voltage control system for power networks, (2005)
  • [4] LAGONOTTE P., Probabilistic approach of voltage control based on structural aspect of power systems, 1991 Third International Conference on Probabilistic Methods Applied to Electric Power Systems, pp. 208-213, (1991)
  • [5] LAGONOTTE P, SABONNADIERE J C, LEOST J Y, Et al., Structural analysis of the electrical system: application to secondary voltage control in France, IEEE Transactions on Power Systems, 4, 2, pp. 479-486, (1989)
  • [6] WANG Yaoyu, ZHANG Boming, SUN Hongbin, Et al., An expert knowledge based subarea division method for hierarchical and distributed electric power system voltage/VAR optimization and control, Proceedings of the CSEE, 18, 3, pp. 3-5, (1998)
  • [7] QUINTANA V H, MULLER N., Partitioning of power networks and applications to security control, IEE Proceedings of Generation, Transmission and Distribution, 138, 6, pp. 535-545, (1991)
  • [8] GUO Qinglai, SUN Hongbin, ZHANG Boming, Et al., Power network partitioning based on clustering analysis in Mvar control space, Automation of Electric Power Systems, 29, 10, pp. 36-40, (2005)
  • [9] SUN H B, GUO Q L, ZHANG B M, Et al., An adaptive zone-division-based automatic voltage control system with applications in China, IEEE Transactions on Power Systems, 28, 2, pp. 1816-1828, (2013)
  • [10] GE H C, GUO Q L, WANG B, Et al., Multivariate statistical analysis-based power-grid-partitioning method, IET Generation, Transmission & Distribution, 10, 4, pp. 1023-1031, (2016)
1234