TY - JOUR
T1 - Analysis of the impact of sub-hourly unit commitment on power system dynamics
AU - Kërçi, Taulant
AU - Giraldo, Juan S.
AU - Milano, Federico
PY - 2020/7/1
Y1 - 2020/7/1
N2 - This paper discusses the impact of the sub-hourly unit commitment problem on power system dynamics. Such an impact is evaluated by means of a co-simulation platform that embeds a sub-hourly stochastic mixed-integer linear programming security constrained unit commitment (sSCUC) into a time domain simulator, as well as includes a rolling planning horizon that accounts for forecast updates. The paper considers different sub-hourly sSCUC resolutions (i.e., 5 and 15 min) and different wind penetration levels (i.e., 25 and 50%). The focus is on the transient response of the system and on frequency variations following different sSCUC strategies, and different sSCUC wind power uncertainty and volatility. The case study consists of a comprehensive set of Monte Carlo simulations based on the 39-bus system.
AB - This paper discusses the impact of the sub-hourly unit commitment problem on power system dynamics. Such an impact is evaluated by means of a co-simulation platform that embeds a sub-hourly stochastic mixed-integer linear programming security constrained unit commitment (sSCUC) into a time domain simulator, as well as includes a rolling planning horizon that accounts for forecast updates. The paper considers different sub-hourly sSCUC resolutions (i.e., 5 and 15 min) and different wind penetration levels (i.e., 25 and 50%). The focus is on the transient response of the system and on frequency variations following different sSCUC strategies, and different sSCUC wind power uncertainty and volatility. The case study consists of a comprehensive set of Monte Carlo simulations based on the 39-bus system.
KW - Co-simulation
KW - Dynamic performance
KW - Frequency stability
KW - Sub-hourly unit commitment
KW - Stochastic programming
UR - http://www.scopus.com/inward/record.url?scp=85078098134&partnerID=8YFLogxK
U2 - 10.1016/j.ijepes.2020.105819
DO - 10.1016/j.ijepes.2020.105819
M3 - Article
SN - 0142-0615
VL - 119
JO - International Journal of Electrical Power and Energy Systems
JF - International Journal of Electrical Power and Energy Systems
M1 - 105819
ER -