• Non ci sono risultati.

Long duration simulations of railway AC Electrified lines

N/A
N/A
Info
Scarica
Protected

Academic year: 2021

Condividi "Long duration simulations of railway AC Electrified lines"

Copied!
1
0
0

Caricamento.... (Visualizza il testo completo ora)

Scarica adesso ( 1 pagine )

Testo completo

(1)

Abstract—Simulation models must have a level of detail consistent with the prescribed goals and considered time span. Electrified railway lines require simulating trains during their typical trips, with acceleration and braking transients lasting at least several seconds or some minutes;. On the other hand, AC lines have quantities (voltages, currents) which vary much faster, e.g. at 50 or 60 Hz.

This paper discusses how to model railway electric supply networks with a complexity adequate for long-run simulations, while still having good precision and details on the results. In particular, it discusses the usage of hybrid models combining the use of complex impedances for the supply system with dynamic models of trains. It also discusses the use of supply line models having a reduced number of conductors to make them smaller and faster to simulate, without loss of precision.

The proposed techniques are implemented in models written in the Modelica simulation language, and results are shown, which compare precision and computational efficiency of models using the proposed technique with others built in a more conventional time-domain way.

Riferimenti

Scarica adesso ( PDF - 1 pagine - 48.28 KB )

Documenti correlati

First, equations which govern the operation of various parts of the system are introduced

The purpose of this thesis is the study and analysis of a specic industrial drying system for the production of tissue paper using the software Matlab.. First, equations which

Applications of the bootstrap calibrated procedure to AR, ARCH and MA models are presented

This paper deals with prediction for time series models and, in particular, it presents a simple procedure which gives well-calibrated predictive distributions, generalizing

Ottimizzazione del protocollo di detection della proteina E del Virus Dengue, tramite nanobiosensori meccanici

In riferimento alle applicazioni di queste piattaforme in saggi di detection, la rilevazione del fenomeno di binding tra un recettore e il suo analita viene misurato sulla base

However, in the Appendix some of the requested notions and results are briefly treated.

Since the unknown function depends only on a real variable, it is natural to give it the meaning of time, denoting it by t ∈ R, and to interpret the solution as the evolution of

Applications of our results are given in the context of (homogeneous, periodic and disordered) random walk models for polymers and interfaces

We look in particular at the copolymer near a selective interface model, both in the disordered [3, 1] and in the periodic [4, 5] setting, but also at the interface wetting

Finally the asymptotic states of the dynamics are derived, with particular attention to the one- and two-qubit cases, which are of interest for this thesis

In the fourth chapter, the behavior of entanglement in open quantum systems is described: in particular, a two-qubit system is studied, analyzing both entanglement generation

The density profiles of the light impurities in the plasma and the comparison with quasi-linear and non linear gyrokinetic simulations are shown

A series of experiments was carried out in JET ILW L-mode plasmas in order to study the transport of light impurities and their effects on core thermal transport.. These

Two applications of the results are given

Moreover, the Monge–Amp`ere equations, written under the form of first order systems of PDE’s, can be reduced to linear form by means of invertible point transformations suggested