基于快速DFT及RLS自适应滤波器的谐波电流提取  

Based on fast DFT and RLS adaptive filter harmonic current extraction

作　　者：马俊 Ma Jun(Drilling R&D Institute of China Oilfield Service Ltd.,Yanjiao065201,Hebei,China)

机构地区：[1]中海油服钻井研究院,河北燕郊065201

出　　处：《船电技术》2023年第10期9-12,共4页Marine Electric & Electronic Engineering

摘　　要：本文提出一种基于智能Goertzel算法和自适应RLS滤波器的谐波提取算法,用于控制有源电力滤波器。快速Goertzel算法可用于从负载电流中提取特定次谐波的幅值和相位信息,再利用递归最小二乘法滤波器进行滤波可得到参考谐波电流值。这种混合FG-RLS控制算法可适应不平衡负载及突变负载的补偿工作。本文通过仿真验证了这种算法的优越性能。This paper introduces a harmonic extraction algorithm based on intelligent Goertzel algorithm and self-adaptive RLS filter which is used to control active power filters.The fast Goertzel algorithm can be used to extract the amplitude and phase information of the specific harmonic from the load current,and then the reference value of harmonic current can be obtained by the recursive least square filter.The hybrid FG-RLS control algorithm can be used to compensate unbalanced load and sudden change of load.The superior performance of this algorithm is verified by simulation.

关 键 词：自适应滤波器 GOERTZEL算法 谐波分析 电能质量 有源电力滤波器 

分 类 号：TM721[电气工程—电力系统及自动化]