Unit Commitment Analysis in Hybrid Networks Containing Point-to-Point VSC-HVDC links

This paper presents an efficient modeling approach for solving the Unit Commitment (UC) problem in hybrid power grids. This is based on the linear modeling of the AC network and point-to-point High Voltage Direct Current (VSC-HVDC) links through a nodal power flow approach using AC voltage phase angles and DC voltages. This results in a Mixed-Integer Linear Programming (MILP) formulation. The obtained results permit to determine the optimal hourly scheduling for VSC-based transmission grids in the context of day-ahead electricity markets. The applicability of this formulation is showcased using two empirical power systems incorporating a point-to-point VSC-HVDC link.