Convergence identification and adjustment method of power flow calculation for large-scale power system

被引：0
|
作者：
An J. [1 ]
Song J. [1 ]
Ge W. [2 ]
机构：
[1] Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin
[2] State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2020年 / 40卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Convergence; Convergence domain of power flow; Iterative intermediate informa-tion; Large-scale electric power systems; Power flow calculation;
D O I：
10.16081/j.epae.201912031
中图分类号：
学科分类号：
摘要：
In power flow simulation for large-scale power grid, the calculation is not easy to converge. Ai-ming at the difficulty of locating the key influence factors when the power flow calculation is not convergent, the indexes to judge the convergence of power flow calculation are established by analyzing the change rule of iterative intermediate data. An identification method of key factors that lead to non-convergence of power flow calculation is proposed, and the identified key factors are modified based on the convergence domain of power flow, which can provide intuitive reference for operators to adjust power flow. The effectiveness of the proposed method is verified by the simulation calculation of a province power grid with 220 kV and above voltage level and a 13 659-bus system in Europe. © 2020, Electric Power Automation Equipment Press. All right reserved.
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页码：103 / 108
页数：5
相关论文
共 16 条
  • [1] Zhang D., Yan Z., Xu X., Et al., Large-scale ill-conditioned power flow calculation using implicit Cholesky factorization method, Power System Technology, 40, 4, pp. 1197-1203, (2016)
  • [2] Overbye T.J., A power flow measure for unsolvable cases, IEEE Transactions on Power Systems, 9, 3, pp. 1359-1365, (1994)
  • [3] Sun Q., Chen H., Yang J., Et al., Analysis on convergence of Newton-like power flow algorithm, Procee-dings of the CSEE, 34, 13, pp. 2196-2200, (2014)
  • [4] Yang X., Wei Z., Sun G., Et al., Decoupled three-phase power flow calculation for distribution network with DGs, Electric Power Automation Equipment, 34, 3, (2014)
  • [5] Xu X., Li Q., Xu Y., Et al., Discussion on convergency of reactive power optimization algorithms, Electric Power Automation Equipment, 25, 2, pp. 89-93, (2005)
  • [6] Passos Filho J.A., Martins N., Falcao D.M., Identifying power flow control infeasibilities in large-scale power system models, IEEE Transactions on Power Systems, 24, 1, pp. 86-95, (2009)
  • [7] Li M., Chen J., Chen H., Et al., Load flow regulation for unsolvable cases in a power system, Automation of Electric Power Systems, 30, 8, pp. 11-15, (2006)
  • [8] Peng H., Li F., Yuan H., Et al., Power flow calculation and condition diagnosis for operation mode adjustment of large-scale power systems, Automation of Electric Power Systems, 42, 3, (2018)
  • [9] Peng H., Yuan H., Bao Y., Et al., Identification and correction method for ill-conditioned power flow of large scale network, Power System Protection and Control, 46, 22, pp. 116-123, (2018)
  • [10] Li Z., Han Y., Su Y., Et al., A convergence adjustment method of power flow based on node type swit-ching, Automation of Electric Power Systems, 39, 7, pp. 188-193, (2015)
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