[1]居茜,鞠勇.一种改进的单相电路ip-iq谐波检测方法[J].南京师范大学学报(工程技术版),2014,14(02):024.
 Ju Qian,Ju Yong.An Improved ip-iq Detecting Method for Harmonics in SinglePhase Circuits[J].Journal of Nanjing Normal University(Engineering and Technology),2014,14(02):024.
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一种改进的单相电路ip-iq谐波检测方法
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
14卷
期数:
2014年02期
页码:
024
栏目:
出版日期:
2014-06-30

文章信息/Info

Title:
An Improved ip-iq Detecting Method for Harmonics in SinglePhase Circuits
作者:
居茜鞠勇
南京师范大学电气与自动化工程学院,江苏 南京 210042
Author(s):
Ju QianJu Yong
School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210042,China
关键词:
单相电路谐波检测ip-iq算法反馈椭圆低通滤波器
Keywords:
singlephase circuitsdetecting method for harmonicsip-iq methodfeedbacklowpass elliptic filte
分类号:
TM761
文献标志码:
A
摘要:
针对单相电路谐波的特点,以瞬时无功理论为基础,分析了单相电路ip-iq谐波检测法.综合考虑检测的精度及实时性要求,提出一种更适合单相电路谐波检测的改进方法.该检测方法在引入反馈环节、改善检测系统实时性的基础上,采用过渡带衰减速率快、频率特性好的椭圆低通滤波器代替传统的巴特沃斯低通滤波器,减少低通滤波器的延时及对检测精度的影响.利用MATLAB/Simulink进行建模和仿真,证明改进算法提高了检测精度和动态响应速度.
Abstract:
In view of the features of harmonics in singlephase circuits,the study makes an analysis on harmonics ip-iq detection for singlephase circuits in the way of mathematics based on the instantaneous reactive power theory.Considering accuracy and realtime of the harmonics detection,a much more suitable method for harmonics in singlephase circuits is proposed.In order to improve the performance of the whole detection system,a feedback process is added to the system.With the application of the elliptic lowpass filter featuring high decay rate in transition zone and a good frequency characteristic instead of traditional Butterworth low pass filter,the method can reduce the influence of time delay of lowpass filter on the detection accuracy.The modeling and simulation of MATLAB/Simulink proves that the method improves the accuracy and speed of dynamic response.

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备注/Memo

备注/Memo:
收稿日期:2013-10-16.
通讯联系人:居茜,助理实验师,研究方向:电力电子与电力传动.E-mail:akale@126.com
更新日期/Last Update: 2014-06-30