Article, 2024

Reactive power optimization control for multi-energy system considering source-load uncertainty

Electric Power Systems Research, ISSN 1873-2046, 0378-7796, Volume 228, Page 110044, 10.1016/j.epsr.2023.110044

Contributors

Zuo, Hao [1] Xiao, Wanqiu [2] Ma, Shihui [3] Teng, Yun (Corresponding author) [1] Chen, Zhe [1] [4]

Affiliations

  1. [1] Shenyang University of Technology
    2. [NORA names: China; Asia, East];
  2. [2] Shenyang Yuhong District Power Supply Company of State Grid Liaoning Electric Power Co. Shen Yang 110024 China
    3. [NORA names: China; Asia, East];
  3. [3] Yanshan University
    4. [NORA names: China; Asia, East];
  4. [4] Aalborg University
    5. [NORA names: AAU Aalborg University; University; Denmark; Europe, EU; Nordic; OECD]

Abstract

Reactive power control in power systems is an important way to ensure stable system operation. However, as the coupling between multi-energy systems increases, the uncertainty of supply and demand in the power system poses new challenges for reactive power control. Therefore, the main objective of this study is to perform reactive power balance control of the grid in a multi-energy system. Firstly, we studied the characteristics of reactive power demand during the energy transport of a multi-energy system. In addition, we studied the reactive power output characteristics of various power sources and their uncertainties. The reactive power balance of the multi-energy system and its uncertainty model are established. Then, we studied the adjustable pressure limits of the energy medium transmission pipelines of the heat supply network and the gas pipeline network. The reactive power demand capacity of the system is determined according to the system's energy condition and safe operation boundary. Finally, we established a reactive power optimization simulation model of the multi-energy system, considering the heat-gas network constraints. The study proposes that the optimal reactive power control method can improve the voltage stability of the multi-energy system.

Keywords

balance, balance control, boundaries, capacity, characteristics, conditions, constraints, control, control method, coupling, demand, demand capacity, energy, energy conditions, energy transport, gas, gas pipeline network, grid, heat, heat supply network, limitations, method, model, multi-energy system, network, network constraints, objective, operation, operational boundaries, optimal control, optimal reactive power control method, optimization simulation model, output characteristics, pipeline, pipeline network, power, power balance, power balance control, power control, power control method, power demand, power output characteristics, power sources, power system, pressure limit, reactive power balance, reactive power control, reactive power control method, reactive power demand, reactive power optimization control, simulation model, source, source-load uncertainties, stability, stable system operation, study, supply, supply network, system, system operation, transmission pipelines, transport, uncertainty, uncertainty model, uncertainty of supply, voltage, voltage stability

Funders

  • National Natural Science Foundation of China
  • Yantai Institute of Coastal Zone Research
  • Ministry of Science and Technology of the People's Republic of China

Data Provider: Digital Science

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