Available transfer capability assessment considering economic constraint

In this paper, a new mathematic model for calculating available transfer capability (ATC) of power system in power market is presented. This model considers the bidding of generators, bus locational marginal price (LMP) and system security constraints. The objective function is to maximize the total active power consumption for load in sink area. The constraint is the system operation in a security and economy way. A bi-level leader-follower decision-making measure is taken to solve the problem. Relative to the former ATC models which only consider system security constraints, this model is more in accord with the market reality and its solution can guide all parties in market to make decision more efficiently. The numerical simulation results in IEEE30 bus system demonstrate the validity of this model.