Title :
Array of rectilinear solenoids for rail current measurement
Author :
Rienzo, L. Di ; Li, D. ; Pignari, S.A. ; Fedeli, E.
Author_Institution :
Dept. of Electr. Eng., Politec. di Milano, Milan, Italy
Abstract :
In this work, an array of rectilinear solenoids connected in series and “embracing” the rail is proposed as a sensor for monitoring the spectral characteristics of noise currents flowing in each rail of a railway line, in the bandwidth covering track circuit functioning and conducted electromagnetic emission. Results here reported are the outcome of a preliminary numerical study (based on the boundary element method) and show feasibility of the proposed idea. Particularly, a formulation based on the magnetic vector potential and the boundary element method reveals to be fast and accurate in solving the electromagnetic problem, and results in a two dimensional formulation. Sensor sensitivity appears to be high enough for the specific application of interest. The outcomes of the proposed analysis have been assessed versus numerical computations based on a commercial finite element software.
Keywords :
boundary-elements methods; electric current measurement; electromagnetic compatibility; electromagnetic fields; railway electrification; solenoids; vectors; boundary element method; conducted electromagnetic emission; electromagnetic problem; finite element software; magnetic vector potential; noise currents; rail current measurement; railway line; rectilinear solenoid array; sensor sensitivity; spectral characteristic monitoring; track circuit functioning; two dimensional formulation; Conductors; Current measurement; Electromagnetics; Inductance; Rail transportation; Rails; Solenoids; Current Sensor; Rogowski Coil; Solenoid; Track Circuits;
Conference_Titel :
Electromagnetic Compatibility (EMC EUROPE), 2012 International Symposium on
Conference_Location :
Rome
Print_ISBN :
978-1-4673-0718-5
DOI :
10.1109/EMCEurope.2012.6396806