Title :
Voltage Notch Indices Determination Using Wavelet Transform
Author :
Ghaemi, A.H. ; Abyaneh, H. Askarian ; Mazlumi, K. ; Sadeghi, S.H.H.
Author_Institution :
Electr. Eng. Dept. of Amirkabir, Univ. of Technol., Tehran
Abstract :
In this paper a new method based on discrete wavelet transform is proposed. The method can determine the line voltage notch indices for the power quality monitoring purpose. One cycle of the line voltage is decomposed with discrete wavelet transform and then obtained details are used for calculation of the notch indices. Various wavelet functions are tested and the suitable function is specified. This method is applied to some simulated and real waveforms and results confirm its accuracy.
Keywords :
discrete wavelet transforms; power supply quality; power system measurement; discrete wavelet transform; line voltage; power quality monitoring; voltage notch indices determination; wavelet transform; Area measurement; Circuits; Discrete wavelet transforms; Inductance; Monitoring; Power quality; Testing; Thyristors; Voltage; Wavelet transforms; Power quality; discrete wavelet transform; line voltage notch;
Conference_Titel :
Power Tech, 2007 IEEE Lausanne
Conference_Location :
Lausanne
Print_ISBN :
978-1-4244-2189-3
Electronic_ISBN :
978-1-4244-2190-9
DOI :
10.1109/PCT.2007.4538296
