Title :
Simple methods for detecting zero crossing
Author_Institution :
Dept. of Electr. & Comput. Eng., Idaho Univ., Moscow, ID, USA
Abstract :
Affects of noise, harmonics, and multi-frequency signal make frequency and period measurements difficult for synchronizing control events. Various methods are presented to minimize errors in period and phase measurements. Both frequency and amplitude domain approaches are analyzed. Post detection processing allows greater accuracy. Static and dynamic hystereses as well as interpolation methods of zero-crossing detection are investigated.
Keywords :
filtering theory; frequency measurement; interpolation; phase measurement; zero assignment; frequency measurement; interpolation methods; period measurement; phase measurement; synchronizing control events; zero-crossing detection; Delay; Filtering theory; Frequency measurement; Frequency synchronization; Low pass filters; Noise measurement; Phase measurement; Power harmonic filters; Thyristors; Time measurement;
Conference_Titel :
Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE
Print_ISBN :
0-7803-7906-3
DOI :
10.1109/IECON.2003.1280634
