基于i_p-i_q变换的三相四线制系统任意次谐波电流检测及其在LabVIEW平台上的实现  

Random Harmonic Current Detection Based on i_p-i_q Principle in Three Phase Four Wire System and its Realization on the Platform of LabVIEW

作　　者：徐会亮 叶辉 郑一平 李张秀 窦海妮 

机构地区：[1]二滩水电发电厂,四川攀枝花617000

出　　处：《电测与仪表》2009年第4期14-16,25,共4页Electrical Measurement & Instrumentation

摘　　要：电力有源滤波器关键的环节是实时准确地检测出谐波电流,本文针对三相四线制系统的任意次谐波电流检测的改进ip-iq法,以功能强大的图形化编程软件LabVIEW为开发平台,实现了任意次谐波电流检测系统,可以快速地检测出正序、负序和零序分量,将它们相加就可以得到任意次谐波电流。该系统结构简单,响应速度快,检测精度高,具有很好的参考价值。The key problem in APF is to detect the harmonic current accurately in real-time mode. This paper takes ip-iq method used in the harmonic detection in the system of three-phase four-wire on the platform of IabVIEW. can detect positive, negative and zero phase sequence current component of random harmonic current respectively. Finally the detected positive, negative and zero phase sequence can be summed up to obtain the random harmonic current. The random harmonic detection system is designed and implemented with simple structure, high possessing and precision, which can be well used for practice.

关 键 词：三相四线制 任意次谐波电流检测 IP-IQ法 LabVIEW 

分 类 号：TM76[电气工程—电力系统及自动化]