基于同步参考坐标变换的改进型谐波检测法  

An Improved Harmonics Detecting Method based on Synchronous Reference Frame Transformation

作　　者：薛文平[1] 刘国海[1] 

机构地区：[1]江苏大学,江苏镇江212013

出　　处：《电力电子技术》2006年第1期47-49,共3页Power Electronics

基　　金：江苏省高新技术项目(BG2004024);江苏大学自然科学创新基金(04CX02)~~

摘　　要：在瞬时无功功率理论基础上,提出一种基于同步参考坐标变换的改进型ipi,q谐波电流检测方法。该方法用积分、延时和增益环节代替传统的低通滤波器,将检测延时减少到1/6电源周期。详细介绍了基于DSP芯片TMS320F240实现该检测方法的过程。仿真和实验结果表明,改进型检测方法易实现,检测精度高,实时性好,可用于有源电力滤波器系统中。An improved harmonics current ip,iq detecting method based on synchronous reference frame transformation is proposed with the instantaneous reactive power theory.This improved method substitutes conventional low pass filter by in-tegration, delay and gain,which can reduce the detecting delay to 1/6 of source period.The realizing process of this approach with the aid of DSP chip （TMS320F240） is presented in de-tail.The simulative and experimental results indicate the easy realization, high precision and good real-time property of this improved method which can be applied to active power filter system.

关 键 词：滤波器 数字信号处理器/有源电力滤波器 瞬时无功功率理论 谐波检测 

分 类 号：TN713[电子电信—电路与系统] TM935.24[电气工程—电力电子与电力传动]