A new strategy for transmission expansion in competitive electricity markets

Automatic selection of candidate investments for Transmission Expansion Planning

“…Some consider a sequential static case [11], with several instants that are optimized successively and a few applications include a complete dynamic description [12]. Uncertainties naturally present in the problem (demand, renewable generation production or contingencies) have been incorporated through stochastic optimization [13], which minimizes the expected cost, or robust optimization [14], which carries out a worst-case approach. Medium term studies usually consider centralized TEP with competitive operation [15], while long-term models most frequently deal with centralized TEP with cost-based operation [16].…”

Robust dynamic network expansion planning considering load uncertainty

“…The constraint of (15) refers to the limit on the total number of lines in a specific path over planning horizon. The equality constraint given by (16) refers to the coupling dynamic constraint between two subsequent years.…”

“…xð e kÞ ¼ Investment cost for existing and candidate right-of-ways for IEEE 24-bus test system can be found in [16]. The cost coefficients of thermal units are presented in Table 12.…”

“…Some of previously proposed TEP schemes have focused on market-based TEP (i.e. including price or cost of generation) to obtain minimum Total Social Cost (TSC) [16]. The equality constraints of TEP problem include load flow equations at each bus [15].…”

“…The equality constraints of TEP problem include load flow equations at each bus [15]. Due to simplicity and linearity, DC load flow formulation is widely used as the power balance equation in previously proposed TEP schemes [15,16]. The major drawbacks of using DC load flow formulation is neglecting the power losses.…”