基于离散傅立叶变换的单相电路谐波电流实时检测方法的研究  

The Research for the Real-time Detection Method of Single-phase Circuit Harmonic Current Based on DFT

作　　者：李自成[1] 孙玉坤[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《电测与仪表》2005年第3期20-22,共3页Electrical Measurement & Instrumentation

基　　金：江苏省高新技术项目:项目号为GB2004024

摘　　要：根据离散傅立叶变换原理,计算出基波有功电流幅值,从而计算出需要补偿的谐波和无功电流。该方法具有计算量非常小、实时性好、检测精度高等特点,是一种具有应用前景的有源电力滤波器单相电路谐波电流实时检测方法。According to DFT principle,the fundamental active current maximum value can be calculated and the compensation harmonic and reactive currents can also be calculated,it has the characteristics of very little calculation capacity,nice real time performance and high measurement precision and so on. It is a real-time detection method for single-phase harmonic and reactive currents in active power filter to have applying outlook.

关 键 词：源电力滤波器 谐波电流 有功电流 无功电流 

分 类 号：TM933.36[电气工程—电力电子与电力传动]