An optimal configuration method of new generation and high-capacity synchronous condenser for enhancing the power grid voltage support

Abstract

Aiming at the weak voltage support of the long-chain power grid, an optimal configuration method of condensers considering system stability constraints is proposed. To add condensers to key buses to improve the voltage support strength of the power grid. The basic data of Southern Xinjiang Power Grid in winter operation mode was collected, and statistical prediction and analysis of load and power surplus were made. After preliminarily selecting the location for the 750kV backbone grid, the location of the condenser was determined. Further, the weak area of 220kV bus voltage stability to achieve the accurate location of the condenser was determined. With the stability of the power grid as the constraint and economic optimization as the goal, the condenser capacity configuration is realized. The power grid model is built on the PSASP software platform, and the power flow calculation and voltage stability analysis are carried out. The results show that the proposed method can effectively improve the