Three-phase hybrid converter
New converter topology with high efficiency and power density
Exhibitors
Location
Hall 11, Stand B06
Description
Energy transformation and electro mobility require the development of new grid structures, the adaptation of the electrical energy supply as well as a stronger coupling of different energy sources. As a result, there is an increasing demand for power electronic converters.
Previous options for feed-in, distribution and use of electrical energy have disadvantages due to their principle: Transformers are heavy and limited to the feeding frequency, conventional converters usually cannot deliver sufficiently high voltage quality with high power density at the same time, and linear amplifiers only cover low performance and voltage ranges. At KIT's Institute of Electrical Engineering (ETI), scientists have developed a more powerful hybrid converter based on a novel circuit concept. In this case, a common converter is decoupled from a multi-level converter and both units are combined into a three-phase hybrid converter via a separate coupling inductance. The powerful frequency converter, which is characterized by low costs and high power density, takes over the active power conversion. This is coupled to a high-level multi-level converter with high voltage quality and low rated power. A high degree of modularity is given since all components are based on identically constructed units. This combination results in a hybrid converter with high voltage quality, very good scalability and previously unrivalled power density. The new frequency converter can be used for low and medium voltage applications, is characterized by frequency-independent filter behavior as well as smaller size and costs compared to conventional converter technologies.
You can get an overview of this technology at KIT stand. Detailed information can be exchanged individually in contact with the responsible scientific employees of KIT after the industry fair.
Contact
Karlsruher Institut für Technologie (KIT)
- Kaiserstr. 12
- 76131 Karlsruhe
- Germany
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