袁瑞铭,李文文,王国兴,刘建平,王学伟.复杂动态电能信号幅度域游程波形样本库的构建[J].电测与仪表,2025,62(7):92-98. YUAN Ruiming,LI Wenwen,WANG Guoxing,LIU Jiangping,WANG Xuewei.Construction of run length waveform sample library in amplitude domain of complex dynamic power signals[J].Electrical Measurement & Instrumentation,2025,62(7):92-98.
复杂动态电能信号幅度域游程波形样本库的构建
Construction of run length waveform sample library in amplitude domain of complex dynamic power signals
Aiming at the impact of rapid change of dynamic load electric energy signal on the error of electric energy meter, currently published papers only extract a few waveform samples for analysis, which cannot reflect waveform modes of various current changes, and do not further explore characteristics of power signal and its characterization. Therefore, firstly, the fundamental amplitude waveforms are extracted for 3 types of typical complex dynamic power signals. Then, characteristic parameters of run and their characterization methods are proposed. Secondly, on basis of analyzing the typical features of amplitude domain, 28 typical run-length waveforms can be extracted by further analyzing multi-run-length characteristics of current amplitude, and then the sample library of current characteristic waveforms can be established. Finally, according to the characteristic of run length, suggestion test points are given for supplementing international and domestic electricity meter standard.
