Distribution system planning considering integration of distributed generation and load curtailment options in a competitive electricity market |
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Authors: | S Porkar A Abbaspour-Tehrani-fard P Poure S Saadate |
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Affiliation: | 1.Department of Electrical Engineering,Sharif University of Technology,Tehran,Iran;2.Iran Grid Management Company (IGMC),Tehran,Iran;3.Laboratoire d’Instrumentation Electronique de Nancy, LIEN, EA 3440,Université Henri Poincaré de Nancy I,Vandoeuvre les Nancy Cedex,France;4.Groupe de Recherches en Electrotechnique et Electronique de Nancy, GREEN-UHP, UMR 7037,Université Henri Poincaré de Nancy I,Vandoeuvre les Nancy Cedex,France |
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Abstract: | Distribution systems management is becoming an increasingly complicated issue due to the introduction of new technologies,
new energy trading strategies and new deregulated environment. In the new deregulated energy market and considering the incentives
coming from the technical and economical fields, it is reasonable to consider distributed generation (DG) as a viable option
to solve the lacking electric power supply problem. This paper presents a mathematical distribution system planning model
considering three planning options to system expansion and to meet the load growth requirements with a reasonable price as
well as the system power quality problems. DG is introduced as an attractive planning option with competition of voltage regulator
devices and interruptible load. In mathematical model, the object function includes investment costs, which are evaluated
as annualized total cost, plus total running cost as well as cost of curtailed loads and losses. This model identifies the
optimal type, size and location of the planning options. In the studies presented in this paper also the fluctuation of load
and electricity market price versus time period and the effect of DG placement on system improvement are considered. To solve
the proposed mathematical planning model a new software package interfacing MATLAB and GAMS is developed. This package is
enabling to solve large extent distribution system planning program visually and very fast. The proposed methodology is tested
in the case of the well-known IEEE 30-bus test system. |
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