25 kV–50 Hz railway power supply system emulation for power‐hardware‐in‐the‐loop testings

Simulation is an important tool to support rail decarbonisation but can be challenging due to heterogeneous models, simulation tools and skill sets, and concerns around intellectual property. Multi-modelling, a proven methodology in sectors such as aerospace and automotive, uses Functional Mock-up Interface (FMI) and co-simulation to potentially overcome these problems. This paper presents a feasibility study of multi-modelling for rail decarbonisation, using a combination of audit of current state of the art, technical implementation and stakeholder consultation. The audit showed that while current uptake of FMI in rail is low, there is potential to repurpose models from pre-existing tools and apply them within multi-modelling. The technical feasibility assessment demonstrated how multi-modelling could generate flexible simulation outputs to identify decarbonisation systems effects both for urban and mainline rail, including rapid integration of pre-existing MATLAB Simulink models. Work with industry stakeholders identified use cases where multi-modelling would benefit rail decarbonisation, as well as barriers and enablers to adoption. Overall, the study demonstrates the feasibility and considerations for multi-modelling to support rail decarbonisation efforts, and the future developments necessary for wider rollout.

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“…64 ) MATLAB Simulink (e.g. 65 ) and Modelica/Open Modelica (e.g. 66 ) A summary of the survey is presented in Table 2.…”

Section: Resultsmentioning

confidence: 99%

A feasibility assessment of multi-modelling approaches for rail decarbonisation systems simulation

Golightly

Pierce

Palacín

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part F:

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“…One can also see that the resonant frequencies depend on the sector on which the train runs. It has also been shown that these resonances depend on the train position [13,14].…”

Section: State Of the Artmentioning

confidence: 96%

Modelling of a 25 kV-50 Hz Railway Infrastructure for Harmonic Analysis

Stackler¹,

Morel²,

Ladoux³

et al. 2020

EJEE

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This paper presents a methodology for the modelling of a 25 kV-50 Hz railway infrastructure, for frequencies from 0 to 5 kHz. It aims to quantify the amplifications of current and voltage harmonics generated by on-board converters into the infrastructure. A circuit is developed to model the skin effect in the overhead line for time-domain simulations. A new approach, based on state space representation and transfer functions, is also proposed to analyze the interactions between trains. The methodology is then applied in Matlab-Simulink and validated with EMTP-RV. Harmonic interactions between the infrastructure and on-board converters are analyzed. Then, an extension of the model is proposed for higher frequencies in order to study harmonic interactions between new on-board converters and the infrastructure.

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“…4) Hardware in the Loop Applications: Related to AC traction networks we find two works. In [123], HIL hardware is used in order to simulate the feeding infrastructure and analyse the effect of the harmonics in the train controls. The model is developed to study frequencies between 0 and 5kHz in a 25kV 50Hz system.…”

Section: B Specific Cases Of Use Of Simulation Tools and Modelsmentioning

confidence: 99%

A review of railway feeding infrastructures: Mathematical models for planning and operation

et al. 2020

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In this paper, the authors review the mathematical models, simulation and analysis techniques and energy management systems proposed for railway power supply systems. The authors review both AC and DC railway feeding systems making special emphasis in those that consider new technologies like on-board or wayside energy storage, integration of renewable energies in the traction networks or the use of power electronic devices to increase the efficiency and controllability of the networks. The paper is divided in two main blocks studying DC and AC systems. In both parts, a review of the main simulation tools and models is presented but also a detailed list of specific cases of use of such techniques.

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25 kV–50 Hz railway power supply system emulation for power‐hardware‐in‐the‐loop testings

Cited by 11 publications

References 21 publications

A feasibility assessment of multi-modelling approaches for rail decarbonisation systems simulation

A feasibility assessment of multi-modelling approaches for rail decarbonisation systems simulation

Modelling of a 25 kV-50 Hz Railway Infrastructure for Harmonic Analysis

A review of railway feeding infrastructures: Mathematical models for planning and operation

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