Harmonic analysis of ferroresonance in single-phase transformers

Author

Chen, Xusheng ; Caputo, John-Paul ; Baghzouz, Yahia

Author_Institution

Dept. of Electr. & Comput. Eng., Seattle Univ., Seattle, WA, USA

fYear

2012

fDate

17-20 June 2012

Firstpage

535

Lastpage

540

Abstract

Ferroresonance is a power quality problem that is characterized by distorted overvoltage and current waveforms. This paper reviews the ferroresonance problem associated with a circuit involving an unloaded transformer that is connected to a source through a capacitor, and solution methodologies. A common simplified method based on fundamental frequency is revisited while emphasizing the impact of harmonic components. Time-domain numerical simulations are conducted on a transformer using manufacturer data and the solutions are analyzed in terms of their harmonic content in an attempt to determine at what point the switching between the different ferroresonance modes takes place. The damping effect by transformer core loss is also emphasized.

Keywords

harmonic analysis; numerical analysis; power supply quality; power transformers; time-domain analysis; transformer cores; common simplified method; current waveforms; damping effect; ferroresonance modes; fundamental frequency; harmonic analysis; harmonic content; manufacturer data; overvoltage waveforms; power quality problem; single-phase transformers; time-domain numerical simulations; transformer core loss; unloaded transformer; Ferroresonance; Indexes; ferroresonance; harmonic analysis; nonlinear dynamics; over-voltages; periodic and non-periodic response; transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power (ICHQP), 2012 IEEE 15th International Conference on

Conference_Location

Hong Kong

ISSN

1540-6008

Print_ISBN

978-1-4673-1944-7

Type

conf

DOI

10.1109/ICHQP.2012.6381277

Filename

6381277