Optimal Configuration Method of Synchronous Condenser Based on Voltage Stability Index

With the construction of new power system, the large-scale integration of renewable energy sources has led to a significant reactive power deficit in the power system. Synchronous condensers (SCs) that play the role of reactive power compensation equipment urgently require an optimized allocation method. Firstly, by researching the impact operation characteristics of SC on system voltage, taking into account minimizing the installation cost of SC and maximizing the transient voltage stability of the system, an optimal configuration model of SC is proposed. After that, upgrading the traditional NSGA-II algorithm to accelerate the efficiency of solving optimization configuration models. The fuzzy evaluation method is used to quantitatively evaluate the improvement of the system after the configuration of SC. Finally, the usage of fuzzy evaluation method was used to quantitatively evaluate the improvement of SC in the CEPRI36 node system, verifying its effectiveness.