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Analytical frequency-constrained UC for island power systems
Rouco Ferriz, Almudena; Rajabdorri, Mohammad; Lobato Miguélez, Enrique; Sigrist, Lukas (Institute of Electrical and Electronics Engineers; Institute of Electrical and Electronics Engineers (Belgrado, Serbia), 2023-06-29)This paper presents a frequency-constrained unit commitment (FCUC) formulation for island power systems. The timely activation of spinning reserve is key to guaranteeing frequency stability in the operation planning phase. ... -
Analytical frequency-constrained UC for island power systems
Rouco Ferriz, Almudena; Rajabdorri, Mohammad; Lobato Miguélez, Enrique; Sigrist, LukasThis paper presents a frequency-constrained unit commitment (FCUC) formulation for island power systems. The timely activation of spinning reserve is key to guaranteeing frequency stability in the operation planning phase. ... -
Frequency stability assessment of deloaded wind turbines in Spanish island power systems
Fuente Pascual, Delia; Rajabdorri, Mohammad; Lobato Miguélez, Enrique; Sigrist, LukasThis paper investigates under what circumstances the provision of frequency regulation by renewable energy sources can provide technical and economic benefits to real island power systems. In order to do so, the unit ... -
Impact assessment of FCUC on optimal design of UFLS settings in Island Power Systems
Lobato Miguélez, Enrique; Sigrist, Lukas; Rajabdorri, Mohammad; Egido Cortés, IgnacioA frequency constrained unit commitment (FCUC) formulates the non-linear, non-convex frequency dynamics to obtain the generation dispatch of island power systems (IPSs). Even with FCUC, under frequency load shedding (UFLS) ... -
Impact assessment of FCUC on optimal design of UFLS settings in Island Power Systems
Lobato Miguélez, Enrique; Sigrist, Lukas; Rajabdorri, Mohammad; Egido Cortés, Ignacio (Institute of Electrical and Electronics Engineers (Marrakech, Marruecos), 2023-12-22)A frequency constrained unit commitment (FCUC) formulates the non-linear, non-convex frequency dynamics to obtain the generation dispatch of island power systems (IPSs). Even with FCUC, under frequency load shedding (UFLS) ... -
Inclusion of frequency nadir constraint in the unit commitment problem of small power systems using machine learning
Rajabdorri, Mohammad; Kazemtabrizi, Behzad; Troffaes, Matthias; Sigrist, Lukas; Lobato Miguélez, Enrique (2023-12-01)As the intention is to reduce the amount of thermal generation and to increase the share of clean energy, power systems are increasingly becoming susceptible to frequency instability after outages due to reduced levels of ... -
Liquid air energy storage model for scheduling purposes in island power systems
Rajabdorri, Mohammad; Sigrist, Lukas; Lobato Miguélez, Enrique (2022-10-01)Moving towards clean energy generation seems essential. To do so, renewable energy penetration is growing in the power systems. Although energy sources such as wind and solar are clean, they are not available consistently. ... -
Liquid air energy storage model for scheduling purposes in island power systems
Rajabdorri, Mohammad; Sigrist, Lukas; Lobato Miguélez, Enrique (22/09/2022)Moving towards clean energy generation seems essential. To do so, renewable energy penetration is growing in the power systems. Although energy sources such as wind and solar are clean, they are not available consistently. ... -
Practical solutions to limit computational burden of UC in Island Power Systems
Lobato Miguélez, Enrique; Sánchez Martín, Pedro; Rajabdorri, Mohammad; Sigrist, LukasUnit commitment (UC) models used in real-life island power systems (IPSs) require complex modelling details and low execution times since they have to be launched repeated times for different assumptions and changing ... -
Robust frequency constrained UC using data driven logistic regression for island power systems
Rajabdorri, Mohammad; Lobato Miguélez, Enrique; Sigrist, LukasIn the current practice of short-term power scheduling, online power reserves are used to address generation mismatches and contingencies. Neither online inertia nor the speed of the committed units is considered in the ... -
Robust frequency constrained uc using data driven logistic regression for island power systems
Rajabdorri, Mohammad; Lobato Miguélez, Enrique; Sigrist, Lukas (2022-12-01)In the current practice of short-term power scheduling, online power reserves are used to address generation mismatches and contingencies. Neither online inertia nor the speed of the committed units is considered in the ... -
Robust frequency constrained uc using data driven logistic regression for island power systems
Rajabdorri, Mohammad; Lobato Miguélez, Enrique; Sigrist, Lukas (01/12/2022)In the current practice of short-term power scheduling, online power reserves are used to address generation mismatches and contingencies. Neither online inertia nor the speed of the committed units is considered in the ... -
Robust optimal design of UFLS schemes in Island Power Systems
Lobato Miguélez, Enrique; Rajabdorri, Mohammad; Sigrist, Lukas; Egido Cortés, Ignacio; Ortega Manjavacas, Álvaro (2024-05-27)Since settings of conventional underfrequency load shedding (UFLS) schemes cannot be adjusted in real-time, this paper proposes a novel robust optimal design method of the UFLS scheme for an island power system (IPS) that ... -
System-wide benefits of renewable-based virtual power plants in island power systems
Rajabdorri, Mohammad; Sigrist, Lukas; Ortega Manjavacas, Álvaro; Lobato Miguélez, EnriqueRenewable Energy Sources (RESs) have experienced significant growth in recent years. RES-based Virtual Power Plants (RVPPs) allow aggregating smaller RES-based Distributed Generators (DGs). This paper presents a system-wide ... -
Unit commitment with analytical under-frequency load-shedding constraints for island power systems
Rajabdorri, Mohammad; Rouco Ferriz, Almudena; Sigrist, Lukas; Lobato Miguélez, Enrique (2024-05-16)This paper presents a novel corrective frequency-constrained unit commitment (C-FCUC) for island power systems implementing analytical constraints on underfrequency load shedding (UFLS). Since UFLS is inevitable for ... -
Viability of including frequency metrics in short-term scheduling of island power systems
Rajabdorri, Mohammad; Lobato Miguélez, Enrique; Sigrist, LukasIn the current practice of short-term power scheduling, reserve power is used as a tool to address generation mismatch and contingencies. The practice is starting to fall short especially in smaller power systems, as the ... -
Viability of providing spinning reserves by RES in Spanish island power systems
Rajabdorri, Mohammad; Sigrist, Lukas; Lobato Miguélez, Enrique; Prats Soriano, María del Carmen; Echavarren Cerezo, Francisco (2021-10-05)This paper assesses the viability of providing down and up spinning reserves by renewable energy resources (RES) in island power systems. The process consists of evaluating the impact of providing spinning reserve on the ...