Title :
Wavelet transform application for zero-crossing detection of distorted line voltages in weak AC-systems
Author :
Das, Sukanta ; Syam, Prasid ; Bandyopadhyay, Gautam ; Chattopadhyay, Ajit K.
Author_Institution :
Dept. of Electr. Eng., Bengal Eng. Coll., Howrah, India
Abstract :
The power electronics converter of large rating connected to a weak utility system generates notches in the synchronization voltage due to high current switching, which obscure the normal zero crossing of the signal leading to malfunction of the converter. This paper will demonstrate an application of wavelet transform in this area which is superior in many respects to the earlier methods.
Keywords :
power system transient stability; switching convertors; wavelet transforms; zero current switching; zero voltage switching; distorted line voltage; high current switching; power electronics converter; synchronization voltage; wavelet transform application; weak AC-system; weak utility system; zero-crossing detection; Delay; Filtering theory; Frequency synchronization; Inductance; Neural networks; Signal resolution; Switching converters; Transformers; Voltage; Wavelet transforms;
Conference_Titel :
India Annual Conference, 2004. Proceedings of the IEEE INDICON 2004. First
Print_ISBN :
0-7803-8909-3
DOI :
10.1109/INDICO.2004.1497796
