Wavelet Packet Transform Based Parameter for the Analysis of Short Duration Power Quality Disturbances

被引：2
|
作者：
Naik, Chirag A. [1 ]
Kundu, Prasanta [1 ]
机构：
[1] SV Natl Inst Technol, Dept Elect Engn, Surat, India
来源：
IFAC PAPERSONLINE | 2015年 / 48卷 / 30期
关键词：
Power quality index; time-frequency distribution. Wavelet packet transform. Distribution; AUTOMATIC CLASSIFICATION; S-TRANSFORM; SYSTEM;
D O I：
10.1016/j.ifacol.2015.12.426
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The nature of today's power system has become highly dynamic due to the increased use of nonlinear loads, power electronics based equipment and changed power system regulations. Conventionally, the Fourier transform (FT) is used for the power quality (PQ) analysis with parameters such as; THD and TDD. These parameters are suitable for stationary disturbances only. The recent state of power system demands to analyze the PQ disturbances on the basis of magnitude, time and frequency. In this paper, a new parameter based on Wavelet Packet Transform (WPT) is defined and tested for the short duration PQ disturbances such as; voltage sag, voltage swell, momentary interruptions, oscillatory transients and harmonics, simulated as per their broad definitions provided by the IEEE 1159-2009 standards. (C) 2015, IFAC (International Rderation or Automatic Control) Hosting by Elsevier Ltd. All rights reserved.
引用
收藏
页码：485 / 489
页数：5
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