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    SIE   DE0007236101


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SiC semiconductor technology in tram, Siemens Mobility and Stadtwerke Munchen successfully conclude test

12/06/2021 | 04:41am EST

Siemens Mobility and Stadtwerke Munchen (SWM) successfully completed a one-year test of semiconductor technology based on silicon carbide (SiC) in an Avenio streetcar in Munich in August.

They have now presented the results of their research. The study found that the motor noise produced by the vehicle fell sharply and that energy use declined as well during the trips that the tram made on Munich's public-transportation rail network. The semiconductor technology was produced by Infineon Technologies. The tests were conducted as part of the European research and development project PINTA. By taking part in the trial, Siemens Mobility significantly contributed to efforts to integrate SiC power semiconductors into rail vehicles.

'We would like to thank Stadtwerke Munchen for the good partnership we had during the tests of SiC semiconductor technology in an Avenio Munchen,' said Albrecht Neumann, CEO of Rolling Stock at Siemens Mobility. 'The energy-saving potential found by the test clearly demonstrates the energy efficiency of this promising technology that is designed for use in all types of trains.'

Ingo Wortmann, the Head of Mobility at Stadtwerke Munchen (SWM), added: 'One factor plays a key role in the acceptance of trams - particularly in terms of new construction projects: Our vehicles must be as quiet as possible while in service. The project conducted with Siemens shows that we can not only optimize the noise levels of our vehicles but also improve our energy efficiency. We would be very interested in this solution if these improvements could be commercially mass-produced.'

During the test in Munich, SiC semi-conductor technology was installed in one of two traction converters used by a three-car Avenio tram. The test phase included all development tests necessary to gain authorization for technology's use in passenger service that were conducted in the company's system test center and in the vehicle. The continuous monitoring of energy levels showed an approximate 10 percent reduction in energy consumption. The measurements also found lower noise levels during operations and an overall reduction in motor noise. The Avenio Munchen equipped with a SiC core spent one year transporting passengers and covered 65,000 kilometers in the process.

The PINTA project is part of a far-reaching European research and innovation initiative called Shift2Rail. The goal of this initiative is to create a visionary rail system in Europe through targeted investments. Two of three project phases have now been completed: the initial planning stage and the successful vehicle test for the SiC converter. The focal point of PINTA3 will be system optimization created by the use of SiC in dual-system trams (TramTrain). The objective of the PINTA project is to fuel the introduction of SiC technology in order to lower life-cycle costs and thus bolster the rail industry in Europe. The technology is already being used in a range of industrial sectors, including automotive electromobility.

This project has received funding from the Shift2Rail Joint Undertaking (JU) under grant agreement No. 826054. The JU receives support from the European Union's Horizon 2020 research and innovation program and the Shift2Rail JU members other than the Union.

Siemens Mobility is a separately managed company of Siemens AG. As a leader in transport solutions for more than 160 years, Siemens Mobility is constantly innovating its portfolio in its core areas of rolling stock, rail automation and electrification, turnkey systems, intelligent traffic systems as well as related services. With digitalization, Siemens Mobility is enabling mobility operators worldwide to make infrastructure intelligent, increase value sustainably over the entire lifecycle, enhance passenger experience and guarantee availability. In fiscal year 2020, which ended on September 30, 2020, Siemens Mobility posted revenue of EUR9.1 billion and had around 38,500 employees worldwide.


Eva Haupenthal

Tel: +49 152 01654597

Email: eva.haupenthal@siemens.com

(C) 2021 Electronic News Publishing, source ENP Newswire

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