Abstract
The optimization of the available transmission capacity (ATC) was considered in the power systems integrated with static synchronous compensator (STATCOM). A calculation method of ATC second-order cone programming (SOCP) based on Benders decomposition was proposed, aiming at the non-convexity and non-linearity in the optimization of the ATC of the power grid. The proposed method was divided into three stages. Firstly, the mathematical model of ATC considering the integration of the STATCOM is established. Secondly, the non-convex tidal current model is approximately converted into a convex optimization model by SOCP. Finally, the solution obtained by transforming the ATC model into two-stage models with basic state power flow constraints and N-1 power flow constraints using Benders decomposition method. The simulation results obtained from the IEEE-118 node system show that the proposed method can guarantee the feasibility of effectively regulating the grid transmission capacity of the power grid. It is also demonstrated that the installation of STATCOM can improve the system transmission capacity.
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