电测与仪表2024，Vol.61Issue(3)：145-152,8.DOI:10.19753/j.issn1001-1390.2024.03.020
基于灵敏度分析的新能源电力系统同步机组调差系数优化方法
Optimization method of synchronous generator adjustment coefficient for new energy power system based on sensitivity analysis
摘要
Abstract
The continuous grid-connection and formation of ultra-high voltage AC/DC interconnected power grids increase the risk of transient frequency stability events of power system.In high penetration of new energy scenarios,one of the most efficient methods to improve the frequency stability capability of the power system is to enhance the frequency regula-tion capability of the synchronous generators.Firstly,through the trajectory sensitivity,the dominate parameter which in-fluences the maximum frequency deviation was analyzed,and then it is optimized to improve the transient stability of the power system.The mathematical model of the dominate parameters optimization problem was established.The effect of dominate parameters on the maximum frequency deviation was analyzed analytically,and the nonlinear optimization prob-lem was approximated with a linear programming problem according to the sensitivity analysis method to reduce the calcu-lation load.On this basis,an optimization method of adjustment coefficient for multi-machine power systems was pro-posed.Finally,the effectiveness of this method was verified by simulation examples.关键词
轨迹灵敏度/主导参数/调差系数优化/灵敏度分析/暂态频率稳定Key words
trajectory sensitivity/dominate parameter/adjustment coefficient optimization/sensitivity analysis/transient frequency stability分类
信息技术与安全科学引用本文复制引用
王凡,胥国毅,邵冲,毕天姝..基于灵敏度分析的新能源电力系统同步机组调差系数优化方法[J].电测与仪表,2024,61(3):145-152,8.基金项目
国家自然科学基金资助项目(51627811,51725702) （51627811,51725702）
国网甘肃省电力公司科技项目(SGGSKY00DJJS1900203) （SGGSKY00DJJS1900203）
中央高校基本科研业务费项目(2019MS008) （2019MS008）
