A Numerical Algorithm For Run-curve
Optimization Of Trains Considering
A DC Feeding Circuit
Author(s)
H. Ko & M. Miyatake
Abstract
An algorithm optimizing total energy consumption of multiple train operation
considering a DC feeding circuit is investigated in this paper. Our mathematical
formulation includes several characteristics of trains which depend on feeding
voltage. It makes it possible to give detailed consideration to an energy-saving
operation. It is especially important for us to be able to discuss the influence of
squeezing control of regenerating current and feeding loss. We constructed the
optimizing algorithm based on the gradient method applicable to large-scale
problems for future works. Several numerical examples are demonstrated to
verify the reliability and validity of the proposed method. Every optimisation
result is obtained within a minute.
Keywords: train operation control, optimization, energy-saving, DC feeding
system.
1 Introduction
In recent years, regenerative energy of trains with electrical regenerative braking
system plays an important role in reducing whole energy consumption in DC
railway system. However, there are several difficulties in collecting regenerative
energy efficiently. One of these difficulties is that the regenerating ability and
amount of regenerating energy depend closely on feeding voltage of a train. For
example, the maximum amount of the electrical braking torque is limited by
feeding voltage, and feeding loss also relies on feeding voltage. In addition, it is
indispensable to discuss influence of squeezing control of regenerative current
for preventing overvoltage of feeder. The other difficulty in collecting
Keywords
train operation control, optimization, energy-saving, DC feeding
system.
Related Book
Other papers in this volume
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