Publikasjoner og ansvarsområder
Nonconvexities in Short-Term Hydrothermal Scheduling
Accounting for reserve capacity activation when scheduling a hydropower dominated system
As the penetration of variable renewable power generation increases in power systems around the world, system security is challenged. It is crucial to coordinate the available flexible generating resources, such as hydropower, to meet the need for system balancing. However, reserved capacity on hydr...
On the Importance of Detailed Thermal Modeling for Price Forecasting in Hydro-Thermal Power Systems
This paper presents a framework for long-term price forecasting in hydro-thermal power systems comprising two modeling layers. A long-term hydro-thermal model expresses the expected future cost as a function of hydro reservoir levels to a short-term operational model. The short-term model re-optimiz...
Stochastic daily hydrothermal scheduling based on decomposition and parallelization
This paper studies the stochastic short term hydrothermal scheduling of systems that have a significant contribution from controllable reservoirs, focusing on the reservoirs’ operation policy when non-linearity and deployment of supplementary reserves at the real operation stage are modeled. Wind po...
Operating a Battery in a Hydropower-Dominated System to Balance Net Load Deviations
Decreasing costs of battery storage technologies make them a viable option for providing flexibility in power systems. In this paper, we study the operations of a battery in combination with cascaded hydropower in a system with uncertain net load due to wind power production. By simulating the opera...
Fundamental Multi-Product Price Forecasting in Power Markets
Environmental Constraints in Seasonal Hydropower Scheduling
Economic effects of forecasting inaccuracies in the automatic frequency restoration service for the day-ahead energy and reserve scheduling of pumped storage plants
The economic effects of forecasting inaccuracies in the automatic frequency restoration service is analyzed in the context of the operation of a closed-loop and daily-cycle pumped-storage hydropower plant. The uncertainties when scheduling the automatic frequency restoration service are composed by ...
Medium-Term hydropower scheduling with variable head under inflow, energy and reserve capacity price uncertainty
We propose a model for medium-term hydropower scheduling (MTHS) with variable head and uncertainty in inflow, reserve capacity, and energy price. With an increase of intermittent energy sources in the generation mix, it is expected that a flexible hydropower producer can obtain added profits by part...