Mixed-Integer Minimization of the Cost function of the Unit Commitment problem for Isolated power systems
Journal article, Peer reviewed
Permanent lenke
http://hdl.handle.net/11250/298928Utgivelsesdato
2013Metadata
Vis full innførselSamlinger
Originalversjon
IEEE Conference on Decision and Control. Proceedings 2013:421-428 10.1109/CDC.2013.6759918Sammendrag
Unit Commitment (UC) is a minimization problem
that aims to schedule the required generating units in
a power system over some time horizon to meet the demand
based on minimizing the production cost. In this
paper, we present a novel technique to minimize such
functions based on Mixed-integer formulation, neglecting
the time horizon and most of the constraints. This
technique can be considered as a first step in a better
and tighter mixed-integer formulation of the unit commitment
problem, especially for isolated power systems
that contain a small number of generating units. Data
from isolated power systems on marine vessels are used
to test this technique. The proposed technique requires
more constraints and binary variables. However, the
numerical results presented in this work, show that the
proposed method gives more efficient results for low demand,
and close results to those obtained from local
minimizers when the demand is high. The computational
time of the suggested method does not seem to be
explicitly longer than the time taken by the local minimizers,
especially for small isolated power systems.