Turbogenerator with high voltage stator windings

Author

Flockermann, D. ; Kulig, S.

Author_Institution

Inst. of Electr. Machines, Drives & Power Electron., Dortmund Univ., Germany

Volume

1

fYear

2001

fDate

2001

Firstpage

620

Abstract

In this paper the design of a turbogenerator with high voltage stator winding is presented. In distinction from conventional techniques the stator winding is not built with isolated bars. For this concept, common high voltage cables are used. Therefore it is possible to raise the stator voltage from 110 kV to 400 kV. The advantage of this concept is that the transformer is no longer necessary. The conclusion of this paper is that it is possible to design a turbogenerator with high voltage stator windings, but the new machine is much larger than a common one. Furthermore the efficiency is lower (0.6% resp. 2.3%) than for a conventional machine because of skin effect losses in the cables

Keywords

electric reactance; losses; skin effect; stators; synchronous generators; turbogenerators; 400 kV; common high voltage cables; efficiency; high voltage stator windings; numerical field calculation; reactance; skin effect losses; synchronous machine; turbogenerator; Cables; Oil insulation; Power generation; Prototypes; Shape; Stator cores; Stator windings; Teeth; Turbogenerators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on

Conference_Location

Shenyang

Print_ISBN

7-5062-5115-9

Type

conf

DOI

10.1109/ICEMS.2001.970752

Filename

970752