Catenary And Autotransformer Coupled
Optimization For 2x25kV Systems Planning
Author(s)
E. Pilo, L. Rouco & A. Fernandez
Abstract
In the design process of a 2x25kV power supply, the location and sizing of
autotransformers and the choice of the catenary type are usually two aspects very
closely interrelated. As a result, the number of autotransformers can normally be
reduced or augmented if the catenary is upgraded or downgraded respectively. In
this paper, coupling equations between these two aspects are described in detail.
These equations are used to formulate a multi-attribute optimization problem
in which the global efficiency of the investment is optimized. In this problem,
the considered attributes are: (i) investment cost and (ii) a performance index that
is defined in the paper. The optimization procedure gives a reduced set of
catenary and autotransformers combinations that maximize efficiency. This
optimal reduced set can be used as an input in the design process of power
supply. For the solution of this problem, different dominancy criteria are
evaluated. Furthermore, sensitivity studies are carried out during the
optimization process to help in the search of catenary and autotransformers
combinations.
As a study case, the proposed optimization procedure has been used to obtain
a reduced set of catenaries and autotransformers based in the catenary C-350,
which has been used in the Madrid – Barcelona – French border new high-speed
line.
Keywords: power supply system, high speed railways, multi-attribute
optimization, long-term infrastructure planning.
1 Introduction
In the design process of a 2x25kV power supply, the location and sizing of
autotransformers and the choice of the catenary type are usually two aspects very
Keywords
power supply system, high speed railways, multi-attribute
optimization, long-term infrastructure planning.
Related Book
Other papers in this volume
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