Operation planning for power grids with high instalment of dynamically rated components in liberalised electricity markets

Sammanfattning: The power grid is a complex system that requires detailed planning and operation of the power sources. As renewable resources are increasing their share of the power mix, there are new criterion and aspects to take into account. Renewable resources such as wind and solar power are intermittent and challenge the planning and operation further. Simultaneously, the power demand increases and will continue to increase in the future. As the power resources and demand are changing in the power system, the power grid needs to adapt and be more flexible. A flexibility tool for the power system is Dynamic Rating which can dynamically increase the capacity in the power grid components depending on the environmental conditions. This can enable for higher transmission in overhead lines which facilitates the operation planning of power units. Dynamic rating can be applied to various power system components, but the focus in this project is Dynamic Line Rating (DLR). It is interesting to study the implementation of dynamic rating in the realtime market. The real-time market optimal power flow can be done in singleinterval or multi-interval. In this project, dynamic rating is implemented into multi-interval real-time market optimal power flow to investigate the effect on the generation costs. The results indicate that DLR can reduce the generation costs in power grids that are sometimes congested.