Optimal planning strategy of ancillary services ensuring secure operation of power system

This paper presents an overview of a complex approach to optimal planning of ancillary services ensuring reliable power grid balancing in liberalized market conditions that is performed by the transmission system operator. To accomplish this goal analytical computations together with optimizations and Monte-Carlo simulations are used. Attention is also paid to mutual substitutability of ancillary services and its impact on the grid operation and related expenses.