Visible to the public Combining Strategies to Compute the Loadability Margin in Dynamic Security Assessment of Power Systems

TitleCombining Strategies to Compute the Loadability Margin in Dynamic Security Assessment of Power Systems
Publication TypeConference Paper
Year of Publication2021
AuthorsBento, Murilo E. C., Ferreira, Daniela A. G., Grilo-Pavani, Ahda P., Ramos, Rodrigo A.
Conference Name2021 IEEE Power & Energy Society General Meeting (PESGM)
Date Publishedjul
Keywordscomposability, Dynamic security assessment, Dynamical Systems, Heuristic algorithms, Load Margin, Power measurement, Power system dynamics, power system stability, Predictive Metrics, pubcrawl, Reactive power, Resiliency, small-signal stability, synchronous generators, Voltage measurement, Voltage Stability
AbstractThe load margin due to voltage instability and small-signal instability can be a valuable measure for the operator of the power system to ensure a continuous and safe supply of electricity. However, if this load margin was calculated without considering system operating requirements, then this margin may not be adequate. This article proposes an algorithm capable of providing the power system load margin considering the requirements of voltage stability, small-signal stability, and operational requirements, as limits of reactive power generation of synchronous generators in dynamic security assessment. Case studies were conducted in the 107-bus reduced order Brazilian system considering a list of contingencies and directions of load growth.
DOI10.1109/PESGM46819.2021.9638115
Citation Keybento_combining_2021