电力系统保护与控制2024，Vol.52Issue(14)：1-12,12.DOI:10.19783/j.cnki.pspc.231334
大规模风电接入场景下的失步振荡中心定位方法
Out-of-step oscillation center location method in a large-scale wind power integration scenario
摘要
Abstract
The accurate positioning of the oscillation center is the basis for correct action in out-of-step protection.Large-scale wind power integration causes system impedance parameters to change,resulting in a serious deterioration in the adaptability of the traditional out-of-step positioning method based on the impedance trajectory.To tackle this problem,an out-of-step oscillation center location method based on bus frequency is proposed.First,the influence of large-scale wind power integration on the total impedance of the system is analyzed.Further,from the power angle of the generator,the Manhattan distance similarity is calculated and a start-up criterion is constructed.Finally,the moving average method is used to smooth the wide-area measurement frequency,and an out-of-step oscillation center location method based on node frequency difference is proposed.Simulation results show that the proposed method is less affected by noise and is not affected by wind power penetration rate,and can accurately locate the out-of-step oscillation center.关键词
双馈风机/风电渗透率/等效阻抗/同步机组失步/节点电压频差/振荡中心定位Key words
double-fed induction generator/wind power penetration rate/equivalent impedance/synchronization unit out-of-step/node voltage frequency difference/oscillation center positioning引用本文复制引用
李振兴,崔丹阳,胡聪,朱益,翁汉琍..大规模风电接入场景下的失步振荡中心定位方法[J].电力系统保护与控制,2024,52(14):1-12,12.基金项目
This work is supported by the National Natural Science Foundation of China(No.52077120).国家自然科学基金项目资助(52077120) （No.52077120）
