Open Access25 kV–50 Hz railway power supply system emulation for power‐hardware‐in‐the‐loop testings
Author(s) -
Stackler Caroline,
Evans Nathan,
Bourserie Luc,
Wallart François,
Morel Florent,
Ladoux Philippe
Publication year - 2019
Publication title -
iet electrical systems in transportation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.588
H-Index - 26
eISSN - 2042-9746
pISSN - 2042-9738
DOI - 10.1049/iet-est.2018.5011
Subject(s) - harmonics , converters , test bench , emulation , hardware in the loop simulation , engineering , power (physics) , matlab , harmonic , electrical impedance , electronic engineering , electrical engineering , computer science , voltage , simulation , physics , quantum mechanics , economic growth , economics , operating system
This study presents a methodology to consider the impedance of a grid in power‐hardware‐in‐the‐loop experiments to validate power converter control in the presence of harmonics or resonances in the network impedance. As the phenomena to emulate are in a large frequency range, the skin effect in conductors has to be taken into account. A procedure is developed to model the network. Then, the model is simplified to reduce the computation requirements and discretised for real‐time implementation. The proposed method has been applied to analyse the harmonic interactions due to on‐board converters running on a 25 kV–50 Hz railway infrastructure for frequencies from 0 to 5 kHz. The model is computed in MATLAB–Simulink, a SpeedGoat Performance Machine and a linear power supply are used for a real‐time implementation. The converter under test and the test bench are presented. Some experimental results are presented, showing the feasibility and the usefulness of the proposed approach.