Loading...

Sensitivity-based optimal remedial actions to damp oscillatory modes considering security constraints

Setareh, M ; Sharif University of Technology | 2022

17 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.ijepes.2021.107580
  3. Publisher: Elsevier Ltd , 2022
  4. Abstract:
  5. This paper proposes a comprehensive analytic method for applying various optimal remedial actions to improve critical electromechanical modes damping without jeopardizing damping of non-critical modes and violating security constraints of power system. Generators and reactive power sources redisptach, demand side management and the generators voltage reference tuning are remedial actions that are considered here. Dynamic equations of the flux-decay dynamic model of generators, standard dynamic models of excitation system and power system stabilizer and algebraic equations of active and reactive powers balance are formulated in the quadratic eigenvalue problem framework. With simultaneous use of system parameters and online measured data, sensitivity factors of electromechanical modes, generators reactive power, transmission lines apparent power and the buses voltage amplitude with respect to the mentioned remedial actions are calculated. Consumers, generators and reactive power sources are independent agents that offer their price bid to contribute in remedial action schemes. Finally, using sensitivity factors, the best remedial action is determined by mixed-integer nonlinear optimization subject to the minimum required damping ratio and security constraints of transmission lines congestion, generators reactive power capability and buses voltage amplitude. The proposed method is demonstrated on the IEEE 39-bus power system and the results highlight its efficacy. © 2021 Elsevier Ltd
  6. Keywords:
  7. Quadratic eigenvalue problem ; Damping ; Eigenvalues and eigenfunctions ; Electric lines ; Electric power transmission ; Electric utilities ; Integer programming ; Nonlinear programming ; Reactive power ; Bus voltage ; Dynamics models ; Electromechanical modes ; Optimal remedial action ; Power sources ; Quadratic eigenvalue problems ; Remedial actions ; Security constraint ; Sensitivity factors ; Small signal stability ; Dynamic models
  8. Source: International Journal of Electrical Power and Energy Systems ; Volume 135 , 2022 ; 01420615 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0142061521008140