The influence of rotor slot wedge conductivity on transient stability of turbine generator

Author

Xu, G. ; Liu, X. ; Luo, Y.

Author_Institution

North China Electr. Power Univ., Beijing, China

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

In this paper, we establish Field-circuit-network Coupled Time-Step Finite Element Model by the combination of magnetic field equations, electrical circuit and network equations. Based on this mode, we take a 300 MW turbine generator as an example to study the influence of rotor slot wedge material on transient stability and establish the relationship between transient stability limit and rotor slot wedge conductivity. The result shows that the transient stability limit gradually increases as the conductivity of rotor slot wedge changes from σ_al (conductivity of aluminum alloy) to 0.05σ_al.

Keywords

aluminium alloys; electrical conductivity; finite element analysis; rotors; turbogenerators; aluminum alloy conductivity; electrical circuit equation; field-circuit-network coupled time-step finite element model; magnetic field equations; network equation; power 300 MW; rotor slot wedge conductivity; transient stability limit; turbine generator; Circuit stability; Conductivity; Damping; Generators; Rotors; Stability analysis; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7157792

Filename

7157792