Dr.-Ing. Alexander Schmitt
- Former Research Assistant
- alexander schmitt ∂does-not-exist.alumni kit edu
| Title | Image | Source | Short Description |
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| A Novel 100 kW Power Hardware-in-the-Loop Emulation Test Bench for Permanent Magnet Synchronous Machines with Nonlinear Magnetics | The 8th IET International Conference on Power Electronics, Machines and Drives (PEMD) 2016, Glasgow, Scotland, UK |
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| Power Hardware-in-the-Loop Emulation of Permanent Magnet Synchronous Machines with Nonlinear Magnetics – Concept & Verification | PCIM Europe 2016, International Conference and Exhibition for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management |
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| A multi-string photovoltaic inverter for thin-film or back-side contacted solar modules | The 8th IET International Conference on Power Electronics, Machines and Drives (PEMD) 2016 |
Photovoltaic inverters are widely used to feed solar generated power into the public grid. Inverter topologies have to be carefully chosen, depending on the type and on the power of the solar generator. A new transformerless, three-level photovoltaic inverter circuit for multiple strings is investigated in this paper. It allows an individual MPP tracking of each string without needing a full scale boost converter for each input. Furthermore, either the positive poles or the negative poles of the strings can be connected to the neutral conductor N. Therefore, the topology is especially suited for thin-film or back-side contacted solar modules. |
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| A Novel Modulation Scheme for a Modular Multiphase Multilevel Converter in a Power Hardware-in-the-Loop Emulation System | IECON 2015, 41st Annual Conference of the IEEE Industrial Electronics Society, Yokohama, Japan |
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| An Ultra-Efficient Maximum Power Point Tracking Circuit for Photovoltaic Inverters | IECON 2015, 41st Annual Conference of the IEEE Industrial Electronics Society |
This paper deals with a new ultra-efficient circuit for the individual maximum power point (MPP) tracking of an unlimited number of photovoltaic strings. The circuit generates a DC output voltage and can be combined with common DC-AC solar inverter circuits. The necessary blocking voltages of the transistors are far below the maximum string voltages, which yields to low losses and small passive components. An appropriate controller structure is developed and a prototype is built up, that reaches a maximum efficiency of 99.85 percent. |
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| Dimensioning of a Transformerless Photovoltaic Inverter Circuit for Thin-Film or Back-Side Contacted Solar Modules | EPE'15 ECCE Europe, Genf, CH |
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| FPGA-Based Real-Time Simulation of Nonlinear Permanent Magnet Synchronous Machines for Power Hardware-in-the-Loop Emulation Systems | |||
| A Transformerless Single-Phase PV Inverter Circuit for Thin-Film or Back-Side Contacted Solar Modules | IECON 2014, 40th Annual Conference of the IEEE Industrial Electronics Society, Dallas |
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| A High Current, High Frequency Modular Multiphase Multilevel Converter for Power Hardware-in-the-Loop Emulation | PCIM Europe 2014, Nuremberg, Germany |
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| The Modular Multilevel Converter as Universal High-Precision 3AC Voltage Source for Power Hardware-in-the-Loop Systems | PCIM Europe 2014, Nuremberg, Germany |