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Research of the power quality disturbance detection method based on forecasting mechanism
Author(s): 
Pages: 96-100
Year: Issue:  17
Journal: Relay

Abstract: 通过对现有各种扰动监测算法的研究和比较,提出了一种基于线性预测机制的时间域电能质量扰动检测方法.将待分析的电网信号通过由线性预测机制得到的误差预测滤波器,当电网中发生电能质量扰动时,预测信号波形会在扰动发生及结束时刻产生突变,使得所提检测算法能够及时检测到电网中发生扰动信号的起始时刻和持续时间.仿真和试验结果表明了所提方法能准确检测电压暂升、暂降等变化相对缓慢且延续时间也相对较长的暂态扰动信号,对...
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