126 citations · 199 across the 19 of their papers we have counts for
4 papers · 1 filter
A New Frequency Control Reserve Framework based on Energy-Constrained Units
Theodor Borsche, Andreas Ulbig, Göran Andersson
Frequency control reserves are an essential ancillary service in any electric power system, guaranteeing that generation and demand of active power are balanced at all times. Tradi…
Analyzing Operational Flexibility of Power Systems
Andreas Ulbig, Göran Andersson
Operational flexibility is an important property of electric power systems and plays a crucial role for the transition of today's power systems, many of them based on fossil fuels,…
Impact of Low Rotational Inertia on Power System Stability and Operation
Andreas Ulbig, Theodor S. Borsche, Göran Andersson
Large-scale deployment of RES has led to significant generation shares of variable RES in power systems worldwide. RES units, notably inverter-connected wind turbines and PV that a…
Revisiting the Merit-Order Effect of Renewable Energy Sources
Marcus Hildmann, Andreas Ulbig, Göran Andersson
An on-going debate in the energy economics and power market community has raised the question if energy-only power markets are increasingly failing due to growing feed-in shares fr…