Electricity grids are vital for the energy transition, transporting a universally applicable form of energy. Along with increasing transmission capacity, the focus is on improving reliability using the NOVA principle (grid optimization before reinforcement before expansion). Key topics include harmonic components, earthing systems, diagnostic tools for grid conditions, predictive maintenance monitoring, and overhead line sag detection.

Modern electrical networks utilizing smart grid technology.

Rotating machines, essential in various applications, wear out over time. To address ecological and economic challenges, technical diagnostics develops condition-based maintenance strategies. Gear and bearing analyses are particularly challenging, requiring sensors installed inside machines and wireless transmission of measured values. Balancing sampling rates and energy consumption remains a key research focus.

Diagnostics in large rotating equipment for maintenance strategies.

A continuous radio connection is critical for autonomous sensor networks. Modern modules often demand over 10 mW of power, limiting battery-operated systems. The WakeUp receiver approach ensures continuous sensor readiness with an average energy consumption of just 10 µW. The research group explores and tests various circuit designs to optimize this system.

Energy-efficient wireless sensor networks for continuous operation.

To address the global shortage of skilled workers and energy challenges, international networking is crucial. Collaborative research with European and African universities integrates findings into training and education. Initiatives include involving Tunisian students and doctoral candidates, work placements, and train-the-trainer events for Zambian professors, with additional collaborations in Egypt and the Philippines.

Global partnerships fostering innovation and knowledge sharing.