A new lumped steady-state synchronous machine model derived from finite element analysis

Author

L, M. A Arjona ; MacDonald, D.C.

Author_Institution

Inst. de Investigaciones Electr., Cuernavaca, Mexico

Volume

14

Issue

1

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

1

Lastpage

7

Abstract

A new steady-state model describes synchronous reactance over the whole operating region of the machine. The model takes into account main and cross-axis magnetic saturation. An analysis is presented of saturation as a function of the total air gap ampere-turns which shows that complicated relationships exist at leading power factors making such relationships unuseful. Two large turbogenerators of 13.8 kV, 150 MVA and 22 kV, 588 MVA are studied

Keywords

air gaps; electric reactance; finite element analysis; machine theory; power factor; synchronous generators; turbogenerators; 13.8 kV; 150 MVA; 22 kV; 588 MVA; cross-axis magnetic saturation; finite element analysis; leading power factors; lumped steady-state synchronous machine model; main-axis magnetic saturation; operating region; steady-state model; synchronous reactance; total air gap ampere-turns; turbogenerators; Finite element methods; Magnetic analysis; Power generation; Power measurement; Reactive power; Rotors; Stators; Steady-state; Synchronous machines; Voltage;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.749140

Filename

749140