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Dipl.-Ing. Alexander Schmitt

Dr.-Ing. Alexander Schmitt

Former Research Assistant
alexander schmittXcq2∂alumni kit edu


Forschungsprojekte
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Veröffentlichungen
Title Image Source Short Description

The 8th IET International Conference on Power Electronics, Machines and Drives (PEMD) 2016, Glasgow, Scotland, UK

PCIM Europe 2016, International Conference and Exhibition for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

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.

IECON 2015, 41st Annual Conference of the IEEE Industrial Electronics Society, Yokohama, Japan

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.

EPE'15 ECCE Europe, Genf, CH

IECON 2014, 40th Annual Conference of the IEEE Industrial Electronics Society, Dallas

PCIM Europe 2014, Nuremberg, Germany

PCIM Europe 2014, Nuremberg, Germany



abgeschlossene studentische Arbeiten
Titel Typ Bearbeiter
Masterarbeit

Simon Stützle

Bachelorarbeit (extern)

Daniel Fritz

Masterarbeit

Thomas Wersal

Masterarbeit

zu vergeben

Masterarbeit

Uli Jurkewitz

Masterarbeit

Paul Pomnitz

Masterarbeit

zu vergeben

Masterarbeit

Christian Knopf

Masterarbeit

Florian Frank

Masterarbeit

Christian Axtmann

Diplomarbeit

Kai Märzhäuser

Bachelorarbeit

Janis Hofmann

Bachelorarbeit

Tobias Steidle

Bachelorarbeit

Benjamin Volzer

Diplomarbeit (extern)

Florian Faulhaber

Bachelorarbeit

Dominik Benzing

Studienarbeit

Florian Faulhaber

Bachelorarbeit

Paul Pomnitz

Bachelorarbeit

Mirjam Krieg

Bachelorarbeit

Daniel Wehrhahn

Diplomarbeit

Christian Schmälzle