Data translation and order reduction for turbine-generator models used in network studies

Author

Kamwa, I. ; Farzaneh, M.

Author_Institution

IREQ, Varennes, Que., Canada

Volume

12

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

118

Lastpage

126

Abstract

This paper develops suitable procedures for translating high-order networks into conventional stability constants. The approach is computer-oriented and imposes no restriction on the number of equivalent damper windings per axis. Optimum order reduction is used to demonstrate that second-order networks have a bandwidth limited to between 1 and 5 Hz while third-order models may extend this bandwidth beyond 100 Hz. The latter are therefore mandatory for subsynchronous resonance and harmonic studies. In the course of this investigation, the need for a precise definition of the so-called stability constants arises and it is concluded that only a second-order standstill frequency response (SSFR)-based model yields constants that are consistent with the latest, short-circuit test bound, IEEE standard definitions

Keywords

electric reactance; equivalent circuits; harmonics; inductance; machine theory; machine windings; reduced order systems; stability; subsynchronous resonance; turbogenerators; IEEE standard definitions; computer-oriented approach; data translation; equivalent damper windings; harmonics; high-order networks translation; network studies; operational inductance; order reduction; short-circuit test; stability constants; stability reactance; standstill frequency response; subsynchronous resonance; third-order models; turbine-generator models; Bandwidth; Circuit stability; Circuit testing; Dynamic range; Equivalent circuits; Frequency response; Intelligent networks; Resonance; Time domain analysis; Turbines;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.629693

Filename

629693