Table-Top Students Project Exhibition

Master students and PhD Students are invited to present their latest prototypes in the frame of the EPE ECCE Europe 2020 Exhibition.

Each accepted project will have a virtual booth in the exhibition.

E-Sense Power: Non-Invasive Condition Monitoring of Power Converters

This project has developed a non-invasive method to measure the on-state voltage of semiconductors based on a filed patent. Compared to existing methods, it reduces the complexity and cost by at least 70% and with enhanced noise immunity. One of the applications for the measured signals is for condition monitoring of power semiconductor devices in power electronic converters.

The current status of the project is:

1) the proof-of-concept laboratory testing has been accomplished; and

2) a more industry-oriented prototype design has been finished, expected to be tested in both laboratory and field testing.

We plan to exhibit a prototype of the proposed measurement circuit, and a converter demonstrator which the measurement circuit is used. By the time of the exhibition, we expect to be able to disclose more details about the invented technology.

More information:

SyCCo-Bus: A High Speed Synchronous Control Bus for Modular Converter Systems

The Synchronous Converter Control Bus (SyCCo-Bus) is a field bus tailored to the control of modular converter systems. It enables a fast data exchange and a synchronized control of the modules of modular power electronic systems. With increasing switching frequency, an accurate synchronization of the individual modules and a very low latency are necessary requirements for a control bus. The proposed field bus is based on the 1 GBit Ethernet standard but almost erased  the protocol overhead while providing a synchronization accuracy of +/-4ns. In this virtual project stand, application examples of the SyCCo-Bus are shown from the Laboratory of High Power Electronic Systems (ETH Zürich) and the basic working principles are explained.

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Advanced Solid-State Transformers (ASSTRA)

Wide bandgap devices are enabling new application opportunities for Solid-State Transformers, thanks to their superior switching performances. However, the short rise time of their PWM voltage waveforms increases the harmonic content at higher frequencies, which can excite the resonances of Medium-Frequency Transformers (MFTs). This can cause internal overvoltages and failures in the insulation due to unexpectedly high electric field. Therefore, a high-frequency model of a litz wire MFT is developed to predict such overvoltages.

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