Power Generation Technology ›› 2023, Vol. 44 ›› Issue (1): 125-135.DOI: 10.12096/j.2096-4528.pgt.22103

• Smart Grid • Previous Articles     Next Articles

Power Grid Topology Identification Based on Immune Algorithm

Chen DONG1, Qiang WU2, He HUANG2, Rui ZHANG3, Xiuyuan YANG4   

  1. 1.SUNGROW (Nanjing) Co. , Ltd. , Nanjing 210000, Jiangsu Province, China
    2.State Grid Jiangsu Electric Power Co. , Ltd. , Nanjing 210000, Jiangsu Province, China
    3.School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China
    4.School of Automation, Beijing Information Science & Technology University, Haidian District, Beijing 100192, China
  • Received:2022-05-30 Published:2023-02-28 Online:2023-03-02
  • Supported by:
    National Natural Science Foundation of China(51377011)

Abstract:

Power grid topology identification for large power grid trajectories is of great significance for information-driven large power grid operation situation awareness and intelligent control. Firstly, based on the principle of power balance and power flow constraints, the identification of power grid topology was reduced to the problem of seeking the global optimal combination of box and ball. The idea of power grid topology identification was given from a new perspective, which simplified the complex process of traditional power grid topology identification. Secondly, according to the power flow balance characteristics of bus nodes, a mathematical model of power grid topology identification was established, which improved the efficiency of power grid topology identification from the perspective of global optimization. At the same time, the voltage loss was introduced to overcome the non-uniqueness problem of power grid topology identification. Thirdly, the immune intelligent algorithm was used to solve the model. The algorithm effectively maintained the diversity of antibodies and avoided the premature convergence problem. Finally, the proposed method was tested on IEEE 39 and IEEE118 bus systems to verify the effectiveness.

Key words: new power system, power grid, topology identification, immune algorithm, information-driven

CLC Number: