H
Harald Schmidt
Researcher at Siemens
Publications - 82
Citations - 787
Harald Schmidt is an academic researcher from Siemens. The author has contributed to research in topics: Layer (electronics) & Proton exchange membrane fuel cell. The author has an hindex of 15, co-authored 82 publications receiving 772 citations. Previous affiliations of Harald Schmidt include Technische Universität Darmstadt & VDO.
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Optical module and optical system
TL;DR: In this paper, an optical module consisting of a circuit support (10), a cased semiconductor element (12) placed on the circuit support, and a lens unit (14, 16, 18, 20, 21) for projecting electromagnetic radiation onto the semiconductor elements was described.
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Fuel cell drive system with hydrogen generation in test
Bernd Emonts,J. Bøgild Hansen,Harald Schmidt,Thomas Grube,B. Höhlein,Ralf Peters,Andreas Tschauder +6 more
TL;DR: In this paper, a test facility was constructed at Forschungszentrum Julich (FZJ) to evaluate the performance and dynamic behavior of a test drive system for vehicles with polymer electrolyte membrane fuel cells (PEMFC).
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Development of high-temperature superconducting transformers for railway applications
TL;DR: The report describes the 1-MVA transformer's detailed design, and presents the results of electrical and thermal transformer routine tests (e.g., measurement of load losses and no-load losses) that highlights the future perspective of HTS transformers for railway applications.
Journal ArticleDOI
Development and application of superconducting transformers
Martino Leghissa,Bernd Gromoll,J. Rieger,Marijn Pieter Oomen,H.-W. Neumüller,Reinhard Schlosser,Harald Schmidt,W. Knorr,M. Meinert,U. Henning +9 more
TL;DR: In this article, the authors summarized world-wide efforts in the development of superconducting transformers and reports on the progress achieved at Siemens, where they developed a 1-MVA demonstrator transformer for laboratory testing, exhibiting innovative features like horizontal design, cabled-conductor windings and closed cooling cycle with sub-cooled nitrogen.
PatentDOI
High-temperature fuel cell with improved solid-electrolyte/electrode interface and method of producing the interface
Wolfram Wersing,Ellen Ivers-Tiffée,Harald Landes,Ruth M anner,Christoph Dipl Phys Noelscher,Harald Schmidt,Manfred Dr Schnoeller +6 more
TL;DR: In this article, the effective interface between the electrolyte layer and an electrode layer is increased by a suitably treated surface of the electrolytes layer or by a porous and/or rough interlayer.