Speaker
Description
CANCELLED
In rural Ethiopia, 70% of the population lacks reliable access to electricity. Extending the main grid is prohibitively expensive. Mini-grids emerge as a cost-effective and dependable solution. Mini-grids are localized energy networks. They typically consist of small-scale renewable power generation systems and distribution infrastructure. The typical installation includes a back-up diesel generator and a battery energy storage system, which stores excess power when available and provides it during periods of insufficient output from renewable energy sources. Designing such power systems is a non-trivial task. Taking into account battery degradation dynamics, a multi-scale control problem for the optimal design of such power systems is set up. Based on the KKT conditions of the multi-scale system and leveraging well-known averaging techniques, the concept of a two-time scale solution is introduced. The resulting two-time scale gradient descent algorithm is implemented to enable a numerical comparison of the two solution concepts.
