有源电力滤波器自适应谐波检测新算法New Adaptive Harmonic Detection Algorithm of Active Power Filter
刘建华,周万鹏,赵世杰
摘要(Abstract):
为了克服定步长算法无法兼顾快速性和稳态精度的局限,改进现有的变步长自适应算法中存在计算量大、未知参数多的缺点,该文基于均方误差理论推导了一种新的根据误差实时自动调节步长的迭代算法,并应用于有源电力滤波器谐波检测。算法优点在于计算量小,从均方误差最快下降梯度入手,在误差较大时采用大步长,保证快速性;在误差较小时采用小步长,保证稳态精度。Matlab仿真和系统实验验证了文中算法的快速性和准确性,以及应用于有源电力滤波器谐波检测时的有效性。
关键词(KeyWords): 有源电力滤波器;最小均方;谐波检测;变步长;稳态精度
基金项目(Foundation):
作者(Author): 刘建华,周万鹏,赵世杰
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