DOI:10.1007/s40565-017-0287-y |
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Security-constrained model for integrated powerand natural-gas system |
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Net amount: 1266 |
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Author:
Carlos M. CORREA-POSADA1 , Pedro SA´ NCHEZ-MARTI´N2
,
Sara LUMBRERAS2
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Author Affiliation:
1 XM, Compan˜ia de Expertos en Mercados, Medellı´n,
Colombia
2 Technological Research Institute (IIT), ICAI School of
Engineering, Comillas Pontifical University, Madrid, Spain
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Abstract: |
One of the main factors impacting the reliability
of energy systems nowadays is the growing interdependence
between electricity and gas networks due to the
increase in the installation of gas-fired units. Securityconstrained
unit commitment (SCUC) models are used to
economically schedule generating units without compromising
the system reliability. This paper proposes a novel
SCUC formulation that includes dynamic gas constraints,
such as the line pack, and transmission contingencies in
power and gas networks for studying the integrated system
reliability. A Benders’ decomposition with linear programming
techniques is developed to be able to study large
systems. By including dynamic gas constraints into the
SCUC, the proposed model accounts for the flexibility and
reliability that power systems require from gas systems in
the short term. Case studies of different size and complexity
are employed to illustrate how the reliability of one
system is affected by the reliability of the other. These
experiments show how both systems operate in a secure
way (by including contingencies) increases operating costs
by approximately 9% and also show how these costs can
vary by 24% depending on the line pack scheduling. |
Keywords: |
Benders’ decomposition, Natural gas,Reliability, Security-constrained unit commitment |
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Online Time:2017/05/09 |
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