Optimization Configuration Method of Synchronous Condensers Considering the Short-Circuit Ratio and Transient Overvoltage of High Penetration Renewable Energy System

• Published in: 2024 4th Power System and Green Energy Conference (PSGEC) pp. 662 - 667
• Main Authors: Jia, ZhiYuan, Zhou, FanQi, Wang, XiTian
• Format: Conference Proceeding
• Language: English
• Published: IEEE 22.08.2024
• Subjects: Condenser; High Penetration Renewable Energy System; Optimal Configuration; Optimization; Power system stability; Renewable energy sources; Resists; Short-circuit Ratio; Software packages; Stability analysis; Surges; Thermal stability; Transient analysis; Transient Overvoltage; Voltage control
• DOI: 10.1109/PSGEC62376.2024.10721097

The expansion of renewable energy generation is leading to an increased presence of renewable energy in the power system. However, high penetration renewable energy systems, because of the fluctuating and unpredictable nature of renewable energy production, usually face many problems. The issue of insufficient short-circuit ratio can lead to a decrease in the ability of renewable energy stations to resist disturbances, and transient overvoltage may damage equipment and affect the stability of the power system. To address the challenges in systems with a high penetration of renewable energy effectively, this paper introduces an optimization approach for the configuration of synchronous condensers. This configuration method takes into account the operational stability of the renewable energy system and the cost-effectiveness of configuration. By optimizing the capacity of synchronous condensers, it improves the short-circuit ratio and transient overvoltage suppression ability of the renewable energy power system, enhancing voltage stability and disturbance resistance. Firstly, analyzing the causes of insufficient short-circuit ratio and transient overvoltage and their impact on the power system, which provide a theoretical basis for the configuration of synchronous condensers. Secondly, considering the dynamic reactive characteristics of synchronous condensers, analyzing the principal variables affecting the short-circuit ratio and transient overvoltage. Finally, the appropriateness of the configuration method was verified by simulation analysis. The study results that adjusting the configuration of synchronous condensers for renewable energy stations can overcome the deficiencies in short-circuit ratios and transient overvoltage, providing a trustworthy technical foundation for the configuration of synchronous condensers.