Results 231 to 240 of about 33,716,273 (299)

Three-Phase Power System and Three-Phase Transformers

2011
Single-phase systems are adequate for residential applications up to an apparent power S of 5 kVA (per residence), and 25 kVA single-phase pole transformers supply power to about 5–10 residences. In rural areas irrigation applications require single-phase motor ratings of up to 50 kVA.
Ewald F. Fuchs, Mohammad A. S. Masoum
openaire   +1 more source

Discrete phase-locked loop for three-phase systems

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014
This paper presents a discrete phase-locked loop (PLL) method aimed to provide an estimation of the angular frequency, and both the positive and negative sequences of the fundamental component of an unbalanced and distorted three-phase reference signal.
Gerardo Escobar, Carl Ngai Man Ho, Sami Pettersson, Gerardo Vázquez, Eduardo E. Ordonez-Lopez   +4 more
openaire   +2 more sources

A Filtering Technique for Three-Phase Power Systems

2005 IEEE Instrumentationand Measurement Technology Conference Proceedings, 2006
A novel filter for use in three-phase power systems is introduced. When the input to the filter is a balanced three-phase set of signals, the filter suppresses noise and distortions and extracts a smooth three-phase fundamental component. When the input signal to the filter is unbalanced, it extracts the fundamental positive-sequence component of the ...
Masoud Karimi-Ghartemani, Houshang Karimi, Alireza R. Bakhshai   +2 more
openaire   +3 more sources