基于HankelDMD的电力系统机电参数提取方法,属于电力系统运行维护领域.本发明首先挖掘了在电力系统环境激励下随机响应数据中存在机电振荡模式,而后利用HankelDMD方法从随机响应数据中在线提取电力系统机电振荡参数(振荡频率和阻尼比).该方法实现了在电力系统正常运行情况下的机电振荡参数提取;与以往的利用较长分析窗进行机电...
To improve the ability of the dynamic mode decomposition (DMD) algorithm to capture modes from ambient data, a Hankel matrix is introduced to rearrange the measured data. With the extension function of the Hankel block, the mode frequency and damping ratio can be estimated by using only a ...