The Highly Efficient And Reliable smart Transformer (HEART)

Related Projects


Interreg 5a: Leistungselektronik Region (PE:Region)

The PE:Region project targets a leading role for the German-Danish cross-border region in development and production of innovative power electronics components and systems. This implies robust, reliable and energy efficient products to growing markets where regional companies in particular have a strong position in the value chains of renewable energy, variable speed drives, control and regulation of electric energy, and green mobility.

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Unbreakable HEART: a reconfigurable and self-healing isolated dc/dc converter

The chair of power electronics of Prof. Marco Liserre was awarded with the prestigious “ERC Proof of Concept Grant” (150.000 €) for the U-Heart (Unbreakable-Highly Efficient and Reliable Transformer) project. Aim of the project is to investigate and equip the already robust dc/dc converter of the HEART project with additional fault tolerant as well as self-healing features. In contrast to competing approaches, U-HEART will utilize the flux coupling of a multi-winding transformer to avoid the expensive use of redundancies, which makes our approach more appealing for industry partners.

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RELINK - Power Electronic Converter for connection of Decentralized AC- and DC-Systems

The project RELINK goal is the development, design, and implementation of an intelligent power electronics based system, which shall improve the operation and flexibility of the regional and national grid.

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Fault Tolerant Modular Power converter topologies for Smart Transformer

This project aims at the realization of a solid state smart transformer with very high reliability requirements. In particular, the main aspect of this project will be to investigate the architectures of modular power converters, with particular care to the reliability of the system. In the first stage, a comprehensive review of the state of the art regarding solid state transformers will be realized.

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LIFEtime-enhanced Components for WIND Turbines (LIFE-WIND)

The Power Electronic System (PES) is an important part of Wind Turbine Systems (WTS) and according to the statistics the most prone to failure. Power converter systems contain numerous components such as semiconduc-tors, drivers, and passive components and are subject to many different mission profiles (applied loads and stresses).

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Investigation of reliability issues in power electronics

In a first step, components used in power electronics systems in different applications will be identified and classified according to pre-determined groups. Their functional role on the system will also be presented, in order to asses possible failure conditions.

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Active thermal control of power semiconductor modules

The aim of this project is to increase reliability and lifetime of power semiconductor modules in power converters using active thermal control, without affecting the system performance.

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Analysis of the electrical characteristics of medium-voltage grids regarding the optimization during high energy input from wind energy systems

The aim of the project is to accurately analyze the behavior of medium-voltage grid. A measurement system by using parallel inverters will be designed and implemented to analyze grid impedance and also harmonics. The grid impedance at certain frequency is based on the injection of non-characteristic harmonic current and the extraction of resultant voltage harmonic. Additionally, the system can function as reactive power supply and active power filter.

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Wind Farm Control Strategies to Increase the Wind Energy Penetration with Low Effects on the Electric Grid

n the recent years the structure of electrical grid has changed. Many Distributed Generation units are connected to distribution grid. As a higher share of DGs should be integrated with the grid, technical problems arise in different areas such as power quality, voltage stability, harmonics, reliability, protection and control.

The main goal of this project is to facilitate the grid integration of wind energy by addressing the control issues.

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DFG - Formal stability assessment of hybrid distribution grids based on the correct modeling of the effect of synchronization of the power electronics interfaces

The project is to propose a stability assessment aimed at modeling and quantifying the driving phenomena of microgrid control instability. To achieve this goal, we propose to study six main elements. For each one we expect to have a dedicated task of the project.

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Kopernikus-Projekt „Neue Netzstrukturen“: Neue EnergieNetzStruktURen für die Energiewende (ENSURE)

The Kopernikus-project ENSURE targets the investigation and provision of new energy grid structures for the Energiewende with a holistical, systemic approach. It is devided in three focus areas: analysis of new system structures, stable system management and integration of new technologies into the energy supply system. Another point of focus lies in the subsequent realization and proving of the holistical energy supply system in the form of an industrial-scale grid demonstrator.

The whole project is funded by the Federal Ministry of Education and Research with a sum of 40 million Euro. 600.000 Euro are provided for the CAU.  

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KielFlex is a BMWi funded project, which targets to reduce the transportation related NO2 emissions in Kiel. Therefore, the electrification of the private and public transportation is investigated, realized and evaluated.

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Chair of Power Electronics

  • Chair of Power Electronics, CAU Kiel