Clean energy transition 8

Energy Digitalization: A Key Enabling Technology for the Clean Energy Transition

Prof. Sibylle Dieckerhoff, Technical University of Berlin, Germany

Clean Energy Transition toward Power Converter-Dominated Power Systems


Energy savings, renewables and sector electrification are climate change solutions. Power electronics is crucial, and I'm pleased to contribute through our group's research and student education. We focus on Wide Bandgap power semiconductors for converter efficiency, and integrating renewables and converter control in power electronics-heavy electric grids.

03:00 p.m  04:30 p.m              

Luxembourg Learning Centre
7, Ënnert den Héichiewen, 4361 Esch-sur-Alzette

Room: Ellipse

ABSTRACT The contribution of renewable energy resources to the overall energy generation changes the power systems. With the increasing share of renewable based power generation, the electric grids transition from centralized to distributed generation, with a rapidly increasing number of power electronic components. Power electronics is a key enabling technology to transform and control electric energy with high efficiency. Wind and solar generators or battery storage systems need a converter as a power electronic interface to the grid. HVDC transmission systems in the Gigawatt range require power electronic converters to connect to the existing high voltage AC systems. All these generators and power electronic components have small time constants but flexible as well as fast control properties. In future “power electronics only” grids, the interaction of generators and stability in all operation points, in particular during faults, is expected to be a major issue. The lecture wants to give an overview on power electronic components in electric grids, presents grid converter control approaches and discusses converter models for stability investigations. 
CONTENTS 1. Power electronic components in the electric power system: 
- Converters and their application fields in the electric grid
- Efficiency demands and wide bandgap power semiconductor perspectives
- Filters
2. Control demands, grid following versus grid forming control of power converters
3. Power converter models for grid stability investigations
4. Grid faults and providing inertia in power converter dominated systems


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