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Security constrained unit commitment using line outage distribution factors

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IIT-17-037A.pdf (387.1Kb)
Date
2018-01-01
Author
Tejada Arango, Diego Alejandro
Sánchez Martín, Pedro
Ramos Galán, Andrés
Estado
info:eu-repo/semantics/publishedVersion
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Abstract
 
 
Security-constrained unit commitment (SCUC) problem is one of the necessary tools for system operators to make operational planning and real-time operation. The internalization of transmission-network and security constraints (e.g. N-1 criterion) could lead to different decisions in the generation dispatch. However, the computational burden of this problem is challenging mainly due to its inherent large problem size. Therefore, this paper proposes an N-1 security constrained formulation based on the Line Outage Distribution Factors (LODF) instead of the one based on Injection Sensitivity Factors (ISF). This formulation is at the same time more compact than analogous formulations for contingency constraints; hence, it presents a lower computational burden. The computational efficiency of the proposed formulation is shown by solving the SCUC of the IEEE 118 bus system with LODF and ISF. Additionally, an iterative methodology for filtering the active N-1 congestion constraints is detailed, and its implementation for large-scale systems is described. The results show that the proposed filter reduces the computational time by approximately 70 in comparison to the complete formulation of N-1 constraints in SCUC.
 
URI
https:doi.org10.1109TPWRS.2017.2686701
Security constrained unit commitment using line outage distribution factors
Tipo de Actividad
Artículos en revistas
ISSN
0885-8950
Materias/ categorías / ODS
Instituto de Investigación Tecnológica (IIT)
Palabras Clave

mixed-integer linear programming (MIP), security constrained unit commitment (SCUC), line outage distribution factors (LODF), N-1 criterion.
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