A Configuration Method for Synchronous Condensers Driven by Full Electromagnetic Transient Simulation

Abstract

The integration of large-scale renewable energy and power electronic devices into the grid, as well as the uneven distribution of power units and loads, further increases the risk of transient instability at critical load centers. The installation of synchronous condensers (SCs) in the grid can enhance its transient stability. Therefore, it is necessary to focus on the siting and sizing of SCs, considering both economic and safety factors. To address this issue, this paper proposes a configuration method based on full electromagnetic transient (EMT) simulation. Initially, relevant indicators for measuring transient voltage stability are defined. Subsequently, the most severe fault scenario was identified through EMT simulation, and the reactive power voltage sensitivity index was generated. Finally, an optimization configuration model is established with the objective of minimizing installation costs and the constraint of ensuring transient voltage stability, and the model is solved using an iterative linear optimization algorithm. The proposed method is applied in a case study of the power grid platform in S Province, and simulation results indicate that it effectively improves transient voltage stability within heavily loaded regions, demonstrating its economic and practical effectiveness.