Turbogenerator torsional mechanical modal parameter identification from on-line measurements

Author

Fairbairn, Richard E. ; Jennings, Glenn D. ; Harley, Ronald G.

Author_Institution

Dept. of Electr. Eng., Natal Univ., Durban, South Africa

Volume

6

Issue

4

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

1389

Lastpage

1395

Abstract

A method for measuring the torsional mode parameters of a turbogenerator is investigated. The advantages of this measurement technique are that it allows the direct measurement of the mode inertia. In addition, it makes possible the determination of the mechanical damping (excluding the electrical effects) while the turbogenerator is synchronized. The process involves the measurement of the generator´s electrical torque and shaft speed. Results from digital computer simulations are presented as evidence that the method is successful. The method was used to identify specific torsional mode parameters of a laboratory multi-inertia microalternator

Keywords

computerised instrumentation; digital simulation; power engineering computing; synchronous generators; torque; turbogenerators; digital computer simulations; electrical torque; mechanical damping; on-line measurements; shaft speed; torsional mode parameters; turbogenerator; Computer simulation; Damping; Electric variables measurement; Laboratories; Measurement techniques; Parameter estimation; Shafts; Torque measurement; Turbogenerators; Velocity measurement;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.116980

Filename

116980