Determination of reactances of large hydro-generators using finite elements and domain decomposition

Author

Schmidt, Erich ; Grabner, Christian ; Traxler-Samek, Georg

Author_Institution

Inst. of Electr. Drives & Machines, Vienna Univ. of Technol., Austria

Volume

2

fYear

2001

fDate

2001

Firstpage

811

Abstract

For an implementation of the finite element analysis in the design optimization of large synchronous machines, the efficiency of modeling and analysis methods is of crucial importance. The presented analysis method uses a domain decomposition algorithm, whereby only one finite element model for all angular rotor positions is necessary. Moreover, a significant reduction of the calculation time for successive rotor positions is established. These modeling and analysis methods are utilized for the determination and comparison with measurements of the steady-state reactances of a 500 MVA hydro-generator with 14 poles

Keywords

electric reactance; finite element analysis; hydroelectric generators; machine theory; rotors; synchronous generators; 500 MVA; angular rotor positions; design optimization; domain decomposition; domain decomposition algorithm; efficiency; finite elements; hydro-generator reactance determination; Algorithm design and analysis; Boundary conditions; Design optimization; Finite element methods; Performance analysis; Power generation; Stators; Steady-state; Synchronous generators; Synchronous machines;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2001. Canadian Conference on

Conference_Location

Toronto, Ont.

ISSN

0840-7789

Print_ISBN

0-7803-6715-4

Type

conf

DOI

10.1109/CCECE.2001.933546

Filename

933546