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Mitigation of harmonic resonances in three-phase renewable energy systems

Tampere University

The research project focuses on identifying and mitigating power quality problems reported in power-electronics based power systems. The focus is especially in three-phase solar energy systems, where power electronic inverter is the key component.

Goal

Impedance mismatch between grid-connected inverters and the grid have been observed to cause severe malfunction and harmonic resonance phenomena, which may compromise the availability and stability of grid-connected renewable sources.  

This project aims to find out what can be done in terms of control design and impedance-shaping to reduce the likelyhood of the unstable behavior of the inverter.

Funding source

Academy of Finland

Contact persons

Tuomas Messo

Assistant Professor / Principal Investigator

tuomas.messo [at] tut.fi

+358 45 868 6899