On the exact computation of some typical and dynamic phenomena in power networks including iron-core transformers

Author

Abdul-Rahman, Khaled H. ; Saied, Mohamed M.

Author_Institution

Dept. of Electr. & Comput. Eng., Kuwait Univ., Safat, Kuwait

fYear

1994

fDate

1-5 May 1994

Firstpage

61

Lastpage

69

Abstract

This paper begins with a brief review of the available literature dealing with the exact modelling of iron-cored coils and transformers. Taking into account the simulation accuracy as well as the required computational burden, the model proposed by Ewart (1986) was chosen to study two important issues related to nonlinear cores: the overvoltages resulting from nonvertical chopping of core or transformer magnetizing currents; and the strongly distorted current, voltage and flux waveforms appearing in systems including linear as well as nonlinear inductances

Keywords

digital simulation; power system analysis computing; power transformers; transformer cores; coils; computer simulation; current distortion; flux waveform distortion; iron-core transformers; magnetizing currents; modelling; nonlinear cores; nonvertical chopping; overvoltages; power networks; simulation accuracy; voltage distortion; Circuit faults; Computer networks; EMTP; Electromagnetic modeling; Hysteresis; Inductors; Intelligent networks; Magnetic cores; Surge protection; Transformer cores;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial and Commercial Power Systems Technical Conference, 1994. Conference Record, Papers Presented at the 1994 Annual Meeting, 1994 IEEE

Conference_Location

Irvine, CA

Print_ISBN

0-7803-1877-3

Type

conf

DOI

10.1109/ICPS.1994.303554

Filename

303554