Research on Site Selection and Capacity of Flexible Control Equipment Considering Wind Power

Aiming at the problem of transmission line congestion caused by large-scale wind power integration into the system, this paper proposes a Static Synchronous Series Compensator (SSSC) location and capacity determination method based on Particle Swarm Optimization (PSO). The SSSC steady-state power injection model is established, and the power flow calculation method with SSSC is deduced. In terms of site selection, a wind power scenario generation method is proposed. Based on multiple scenarios, an optimization model is established with the minimum transmission congestion index as the objective function to determine the optimal installation location and configuration capacity of SSSC. In terms of capacity selection, according to a specific scenario, a reactive power optimization model with SSSC is established with the minimum system network loss as the objective function, and the real-time operation control parameters of SSSC are determined. The calculation example results show that the PSO has good convergence and stable optimization results, and SSSC can effectively reduce the line blocking degree and system network loss.